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/****************************************************************************

 *

 *  Filename: stv680.h

 *

 *  Description:

 *     This is a USB driver for STV0680 based usb video cameras.

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the Free Software

 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 ****************************************************************************/

/* size of usb transfers */

#define STV680_PACKETSIZE       4096

/* number of queued bulk transfers to use, may have problems if > 1 */

#define STV680_NUMSBUF          1

/* number of frames supported by the v4l part */

#define STV680_NUMFRAMES        2

/* scratch buffers for passing data to the decoders: 2 or 4 are good */

#define STV680_NUMSCRATCH       2

/* number of nul sized packets to receive before kicking the camera */

#define STV680_MAX_NULLPACKETS  200

/* number of decoding errors before kicking the camera */

#define STV680_MAX_ERRORS       100

#define USB_PENCAM_VENDOR_ID    0x0553

#define USB_PENCAM_PRODUCT_ID   0x0202

#define USB_CREATIVEGOMINI_VENDOR_ID    0x041e

#define USB_CREATIVEGOMINI_PRODUCT_ID   0x4007

#define PENCAM_TIMEOUT          1000

/* fmt 4 */

#define STV_VIDEO_PALETTE       VIDEO_PALETTE_RGB24

static struct usb_device_id device_table[] = {

        {USB_DEVICE (USB_PENCAM_VENDOR_ID, USB_PENCAM_PRODUCT_ID)},

        {USB_DEVICE (USB_CREATIVEGOMINI_VENDOR_ID, USB_CREATIVEGOMINI_PRODUCT_ID)},

        {}

};

MODULE_DEVICE_TABLE (usb, device_table);

struct stv680_sbuf {

        unsigned char *data;

};

enum {

        FRAME_UNUSED,           /* Unused (no MCAPTURE) */

        FRAME_READY,            /* Ready to start grabbing */

        FRAME_GRABBING,         /* In the process of being grabbed into */

        FRAME_DONE,             /* Finished grabbing, but not been synced yet */

        FRAME_ERROR,            /* Something bad happened while processing */

};

enum {

        BUFFER_UNUSED,

        BUFFER_READY,

        BUFFER_BUSY,

        BUFFER_DONE,

};

/* raw camera data <- sbuf (urb transfer buf) */

struct stv680_scratch {

        unsigned char *data;

        volatile int state;

        int offset;

        int length;

};

/* processed data for display ends up here, after bayer */

struct stv680_frame {

        unsigned char *data;    /* Frame buffer */

        volatile int grabstate; /* State of grabbing */

        unsigned char *curline;

        int curlinepix;

        int curpix;

};

/* this is almost the video structure uvd_t, with extra parameters for stv */

struct usb_stv {

        struct video_device *vdev;

        struct usb_device *udev;

        unsigned char bulk_in_endpointAddr;     /* __u8  the address of the bulk in endpoint */

        char *camera_name;

        unsigned int VideoMode; /* 0x0100 = VGA, 0x0000 = CIF, 0x0300 = QVGA */

        int SupportedModes;

        int CIF;

        int VGA;

        int QVGA;

        int cwidth;             /* camera width */

        int cheight;            /* camera height */

        int maxwidth;           /* max video width */

        int maxheight;          /* max video height */

        int vwidth;             /* current width for video window */

        int vheight;            /* current height for video window */

        unsigned long int rawbufsize;

        unsigned long int maxframesize; /* rawbufsize * 3 for RGB */

        int origGain;

        int origMode;           /* original camera mode */

        struct mutex lock;      /* to lock the structure */

        int user;               /* user count for exclusive use */

        int removed;            /* device disconnected */

        int streaming;          /* Are we streaming video? */

        char *fbuf;             /* Videodev buffer area */

        struct urb *urb[STV680_NUMSBUF];        /* # of queued bulk transfers */

        int curframe;           /* Current receiving frame */

        struct stv680_frame frame[STV680_NUMFRAMES];    /* # frames supported by v4l part */

        int readcount;

        int framecount;

        int error;

        int dropped;

        int scratch_next;

        int scratch_use;

        int scratch_overflow;

        struct stv680_scratch scratch[STV680_NUMSCRATCH];       /* for decoders */

        struct stv680_sbuf sbuf[STV680_NUMSBUF];

        unsigned int brightness;

        unsigned int chgbright;

        unsigned int whiteness;

        unsigned int colour;

        unsigned int contrast;

        unsigned int hue;

        unsigned int palette;

        unsigned int depth;     /* rgb24 in bits */

        wait_queue_head_t wq;   /* Processes waiting */

        int nullpackets;

};

static const unsigned char red[256] = {

        0, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18,

        18, 18, 18, 18, 18, 18, 18, 25, 30, 35, 38, 42,

        44, 47, 50, 53, 54, 57, 59, 61, 63, 65, 67, 69,

        71, 71, 73, 75, 77, 78, 80, 81, 82, 84, 85, 87,

        88, 89, 90, 91, 93, 94, 95, 97, 98, 98, 99, 101,

        102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113,

        114, 115, 116, 116, 117, 118, 119, 120, 121, 122, 123, 124,

        125, 125, 126, 127, 128, 129, 129, 130, 131, 132, 133, 134,

        134, 135, 135, 136, 137, 138, 139, 140, 140, 141, 142, 143,

        143, 143, 144, 145, 146, 147, 147, 148, 149, 150, 150, 151,

        152, 152, 152, 153, 154, 154, 155, 156, 157, 157, 158, 159,

        159, 160, 161, 161, 161, 162, 163, 163, 164, 165, 165, 166,

        167, 167, 168, 168, 169, 170, 170, 170, 171, 171, 172, 173,

        173, 174, 174, 175, 176, 176, 177, 178, 178, 179, 179, 179,

        180, 180, 181, 181, 182, 183, 183, 184, 184, 185, 185, 186,

        187, 187, 188, 188, 188, 188, 189, 190, 190, 191, 191, 192,

        192, 193, 193, 194, 195, 195, 196, 196, 197, 197, 197, 197,

        198, 198, 199, 199, 200, 201, 201, 202, 202, 203, 203, 204,

        204, 205, 205, 206, 206, 206, 206, 207, 207, 208, 208, 209,

        209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215,

        215, 215, 215, 216, 216, 217, 217, 218, 218, 218, 219, 219,

        220, 220, 221, 221

};

static const unsigned char green[256] = {

        0, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21,

        21, 21, 21, 21, 21, 21, 21, 28, 34, 39, 43, 47,

        50, 53, 56, 59, 61, 64, 66, 68, 71, 73, 75, 77,

        79, 80, 82, 84, 86, 87, 89, 91, 92, 94, 95, 97,

        98, 100, 101, 102, 104, 105, 106, 108, 109, 110, 111, 113,

        114, 115, 116, 117, 118, 120, 121, 122, 123, 124, 125, 126,

        127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138,

        139, 140, 141, 142, 143, 144, 144, 145, 146, 147, 148, 149,

        150, 151, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159,

        160, 160, 161, 162, 163, 164, 164, 165, 166, 167, 167, 168,

        169, 170, 170, 171, 172, 172, 173, 174, 175, 175, 176, 177,

        177, 178, 179, 179, 180, 181, 182, 182, 183, 184, 184, 185,

        186, 186, 187, 187, 188, 189, 189, 190, 191, 191, 192, 193,

        193, 194, 194, 195, 196, 196, 197, 198, 198, 199, 199, 200,

        201, 201, 202, 202, 203, 204, 204, 205, 205, 206, 206, 207,

        208, 208, 209, 209, 210, 210, 211, 212, 212, 213, 213, 214,

        214, 215, 215, 216, 217, 217, 218, 218, 219, 219, 220, 220,

        221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227,

        227, 228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 233,

        233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 238, 239,

        239, 240, 240, 241, 241, 242, 242, 243, 243, 243, 244, 244,

        245, 245, 246, 246

};

static const unsigned char blue[256] = {

        0, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23,

        23, 23, 23, 23, 23, 23, 23, 30, 37, 42, 47, 51,

        55, 58, 61, 64, 67, 70, 72, 74, 78, 80, 82, 84,

        86, 88, 90, 92, 94, 95, 97, 100, 101, 103, 104, 106,

        107, 110, 111, 112, 114, 115, 116, 118, 119, 121, 122, 124,

        125, 126, 127, 128, 129, 132, 133, 134, 135, 136, 137, 138,

        139, 140, 141, 143, 144, 145, 146, 147, 148, 149, 150, 151,

        152, 154, 155, 156, 157, 158, 158, 159, 160, 161, 162, 163,

        165, 166, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174,

        176, 176, 177, 178, 179, 180, 180, 181, 182, 183, 183, 184,

        185, 187, 187, 188, 189, 189, 190, 191, 192, 192, 193, 194,

        194, 195, 196, 196, 198, 199, 200, 200, 201, 202, 202, 203,

        204, 204, 205, 205, 206, 207, 207, 209, 210, 210, 211, 212,

        212, 213, 213, 214, 215, 215, 216, 217, 217, 218, 218, 220,

        221, 221, 222, 222, 223, 224, 224, 225, 225, 226, 226, 227,

        228, 228, 229, 229, 231, 231, 232, 233, 233, 234, 234, 235,

        235, 236, 236, 237, 238, 238, 239, 239, 240, 240, 242, 242,

        243, 243, 244, 244, 245, 246, 246, 247, 247, 248, 248, 249,

        249, 250, 250, 251, 251, 253, 253, 254, 254, 255, 255, 255,

        255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,

        255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,

        255, 255, 255, 255

};