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#ifndef __LINUX_se401_H

#define __LINUX_se401_H

#include <asm/uaccess.h>

#include <linux/videodev.h>

#include <media/v4l2-common.h>

#include <linux/mutex.h>

#define se401_DEBUG     /* Turn on debug messages */

#ifdef se401_DEBUG

#  define PDEBUG(level, fmt, args...) \

if (debug >= level) info("[" __PRETTY_FUNCTION__ ":%d] " fmt, __LINE__ , ## args)

#else

#  define PDEBUG(level, fmt, args...) do {} while(0)

#endif

/* An almost drop-in replacement for sleep_on_interruptible */

#define wait_interruptible(test, queue, wait) \

{ \

        add_wait_queue(queue, wait); \

        set_current_state(TASK_INTERRUPTIBLE); \

        if (test) \

                schedule(); \

        remove_wait_queue(queue, wait); \

        set_current_state(TASK_RUNNING); \

        if (signal_pending(current)) \

                break; \

}

#define SE401_REQ_GET_CAMERA_DESCRIPTOR         0x06

#define SE401_REQ_START_CONTINUOUS_CAPTURE      0x41

#define SE401_REQ_STOP_CONTINUOUS_CAPTURE       0x42

#define SE401_REQ_CAPTURE_FRAME                 0x43

#define SE401_REQ_GET_BRT                       0x44

#define SE401_REQ_SET_BRT                       0x45

#define SE401_REQ_GET_WIDTH                     0x4c

#define SE401_REQ_SET_WIDTH                     0x4d

#define SE401_REQ_GET_HEIGHT                    0x4e

#define SE401_REQ_SET_HEIGHT                    0x4f

#define SE401_REQ_GET_OUTPUT_MODE               0x50

#define SE401_REQ_SET_OUTPUT_MODE               0x51

#define SE401_REQ_GET_EXT_FEATURE               0x52

#define SE401_REQ_SET_EXT_FEATURE               0x53

#define SE401_REQ_CAMERA_POWER                  0x56

#define SE401_REQ_LED_CONTROL                   0x57

#define SE401_REQ_BIOS                          0xff

#define SE401_BIOS_READ                         0x07

#define SE401_FORMAT_BAYER      0x40

/* Hyundai hv7131b registers

   7121 and 7141 should be the same (haven't really checked...) */

/* Mode registers: */

#define HV7131_REG_MODE_A               0x00

#define HV7131_REG_MODE_B               0x01

#define HV7131_REG_MODE_C               0x02

/* Frame registers: */

#define HV7131_REG_FRSU         0x10

#define HV7131_REG_FRSL         0x11

#define HV7131_REG_FCSU         0x12

#define HV7131_REG_FCSL         0x13

#define HV7131_REG_FWHU         0x14

#define HV7131_REG_FWHL         0x15

#define HV7131_REG_FWWU         0x16

#define HV7131_REG_FWWL         0x17

/* Timing registers: */

#define HV7131_REG_THBU         0x20

#define HV7131_REG_THBL         0x21

#define HV7131_REG_TVBU         0x22

#define HV7131_REG_TVBL         0x23

#define HV7131_REG_TITU         0x25

#define HV7131_REG_TITM         0x26

#define HV7131_REG_TITL         0x27

#define HV7131_REG_TMCD         0x28

/* Adjust Registers: */

#define HV7131_REG_ARLV         0x30

#define HV7131_REG_ARCG         0x31

#define HV7131_REG_AGCG         0x32

#define HV7131_REG_ABCG         0x33

#define HV7131_REG_APBV         0x34

#define HV7131_REG_ASLP         0x54

/* Offset Registers: */

#define HV7131_REG_OFSR         0x50

#define HV7131_REG_OFSG         0x51

#define HV7131_REG_OFSB         0x52

/* REset level statistics registers: */

#define HV7131_REG_LOREFNOH     0x57

#define HV7131_REG_LOREFNOL     0x58

#define HV7131_REG_HIREFNOH     0x59

#define HV7131_REG_HIREFNOL     0x5a

/* se401 registers */

#define SE401_OPERATINGMODE     0x2000

/* size of usb transfers */

#define SE401_PACKETSIZE        4096

/* number of queued bulk transfers to use, should be about 8 */

#define SE401_NUMSBUF           1

/* read the usb specs for this one :) */

#define SE401_VIDEO_ENDPOINT    1

#define SE401_BUTTON_ENDPOINT   2

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

#define SE401_NUMFRAMES         2

/* scratch buffers for passing data to the decoders */

#define SE401_NUMSCRATCH        32

/* maximum amount of data in a JangGu packet */

#define SE401_VLCDATALEN        1024

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

#define SE401_MAX_NULLPACKETS   4000

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

#define SE401_MAX_ERRORS        200

struct usb_device;

struct se401_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 {

        FMT_BAYER,

        FMT_JANGGU,

};

enum {

        BUFFER_UNUSED,

        BUFFER_READY,

        BUFFER_BUSY,

        BUFFER_DONE,

};

struct se401_scratch {

        unsigned char *data;

        volatile int state;

        int offset;

        int length;

};

struct se401_frame {

        unsigned char *data;            /* Frame buffer */

        volatile int grabstate; /* State of grabbing */

        unsigned char *curline;

        int curlinepix;

        int curpix;

};

struct usb_se401 {

        struct video_device vdev;

        /* Device structure */

        struct usb_device *dev;

        unsigned char iface;

        char *camera_name;

        int change;

        int brightness;

        int hue;

        int rgain;

        int ggain;

        int bgain;

        int expose_h;

        int expose_m;

        int expose_l;

        int resetlevel;

        int enhance;

        int format;

        int sizes;

        int *width;

        int *height;

        int cwidth;             /* current width */

        int cheight;            /* current height */

        int palette;

        int maxframesize;

        int cframesize;         /* current framesize */

        struct mutex lock;

        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[SE401_NUMSBUF];

        struct urb *inturb;

        int button;

        int buttonpressed;

        int curframe;           /* Current receiving frame */

        struct se401_frame frame[SE401_NUMFRAMES];

        int readcount;

        int framecount;

        int error;

        int dropped;

        int scratch_next;

        int scratch_use;

        int scratch_overflow;

        struct se401_scratch scratch[SE401_NUMSCRATCH];

        /* Decoder specific data: */

        unsigned char vlcdata[SE401_VLCDATALEN];

        int vlcdatapos;

        int bayeroffset;

        struct se401_sbuf sbuf[SE401_NUMSBUF];

        wait_queue_head_t wq;   /* Processes waiting */

        int nullpackets;

};

#endif