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#ifndef _VTX_H

#define _VTX_H

/*

 * Teletext (=Videotext) hardware decoders using interface /dev/vtx

 * Do not confuse with drivers using /dev/vbi which decode videotext by software

 *

 * Videotext IOCTLs changed in order to use _IO() macros defined in <linux/ioctl.h>,

 * unused tuner IOCTLs cleaned up by

 * Michael Geng <linux@MichaelGeng.de>

 *

 * Copyright (c) 1994-97 Martin Buck  <martin-2.buck@student.uni-ulm.de>

 * Read COPYING for more information

 *

 */

/*

 *      Videotext ioctls

 */

#define VTXIOCGETINFO   _IOR  (0x81,  1, vtx_info_t)

#define VTXIOCCLRPAGE   _IOW  (0x81,  2, vtx_pagereq_t)

#define VTXIOCCLRFOUND  _IOW  (0x81,  3, vtx_pagereq_t)

#define VTXIOCPAGEREQ   _IOW  (0x81,  4, vtx_pagereq_t)

#define VTXIOCGETSTAT   _IOW  (0x81,  5, vtx_pagereq_t)

#define VTXIOCGETPAGE   _IOW  (0x81,  6, vtx_pagereq_t)

#define VTXIOCSTOPDAU   _IOW  (0x81,  7, vtx_pagereq_t)

#define VTXIOCPUTPAGE   _IO   (0x81,  8)

#define VTXIOCSETDISP   _IO   (0x81,  9)

#define VTXIOCPUTSTAT   _IO   (0x81, 10)

#define VTXIOCCLRCACHE  _IO   (0x81, 11)

#define VTXIOCSETVIRT   _IOW  (0x81, 12, long)

/* for compatibility, will go away some day */

#define VTXIOCGETINFO_OLD  0x7101  /* get version of driver & capabilities of vtx-chipset */

#define VTXIOCCLRPAGE_OLD  0x7102  /* clear page-buffer */

#define VTXIOCCLRFOUND_OLD 0x7103  /* clear bits indicating that page was found */

#define VTXIOCPAGEREQ_OLD  0x7104  /* search for page */

#define VTXIOCGETSTAT_OLD  0x7105  /* get status of page-buffer */

#define VTXIOCGETPAGE_OLD  0x7106  /* get contents of page-buffer */

#define VTXIOCSTOPDAU_OLD  0x7107  /* stop data acquisition unit */

#define VTXIOCPUTPAGE_OLD  0x7108  /* display page on TV-screen */

#define VTXIOCSETDISP_OLD  0x7109  /* set TV-mode */

#define VTXIOCPUTSTAT_OLD  0x710a  /* set status of TV-output-buffer */

#define VTXIOCCLRCACHE_OLD 0x710b  /* clear cache on VTX-interface (if avail.) */

#define VTXIOCSETVIRT_OLD  0x710c  /* turn on virtual mode (this disables TV-display) */

/*

 *      Definitions for VTXIOCGETINFO

 */

#define SAA5243 0

#define SAA5246 1

#define SAA5249 2

#define SAA5248 3

#define XSTV5346 4

typedef struct {

        int version_major, version_minor;       /* version of driver; if version_major changes, driver */

                                                /* is not backward compatible!!! CHECK THIS!!! */

        int numpages;                           /* number of page-buffers of vtx-chipset */

        int cct_type;                           /* type of vtx-chipset (SAA5243, SAA5246, SAA5248 or

                                                 * SAA5249) */

}

vtx_info_t;

/*

 *      Definitions for VTXIOC{CLRPAGE,CLRFOUND,PAGEREQ,GETSTAT,GETPAGE,STOPDAU,PUTPAGE,SETDISP}

 */

#define MIN_UNIT   (1<<0)

#define MIN_TEN    (1<<1)

#define HR_UNIT    (1<<2)

#define HR_TEN     (1<<3)

#define PG_UNIT    (1<<4)

#define PG_TEN     (1<<5)

#define PG_HUND    (1<<6)

#define PGMASK_MAX (1<<7)

#define PGMASK_PAGE (PG_HUND | PG_TEN | PG_UNIT)

#define PGMASK_HOUR (HR_TEN | HR_UNIT)

#define PGMASK_MINUTE (MIN_TEN | MIN_UNIT)

typedef struct

{

        int page;       /* number of requested page (hexadecimal) */

        int hour;       /* requested hour (hexadecimal) */

        int minute;     /* requested minute (hexadecimal) */

        int pagemask;   /* mask defining which values of the above are set */

        int pgbuf;      /* buffer where page will be stored */

        int start;      /* start of requested part of page */

        int end;        /* end of requested part of page */

        void __user *buffer;    /* pointer to beginning of destination buffer */

}

vtx_pagereq_t;

/*

 *      Definitions for VTXIOC{GETSTAT,PUTSTAT}

 */

#define VTX_PAGESIZE (40 * 24)

#define VTX_VIRTUALSIZE (40 * 49)

typedef struct

{

        int pagenum;                    /* number of page (hexadecimal) */

        int hour;                       /* hour (hexadecimal) */

        int minute;                     /* minute (hexadecimal) */

        int charset;                    /* national charset */

        unsigned delete : 1;            /* delete page (C4) */

        unsigned headline : 1;          /* insert headline (C5) */

        unsigned subtitle : 1;          /* insert subtitle (C6) */

        unsigned supp_header : 1;       /* suppress header (C7) */

        unsigned update : 1;            /* update page (C8) */

        unsigned inter_seq : 1;         /* interrupted sequence (C9) */

        unsigned dis_disp : 1;          /* disable/suppress display (C10) */

        unsigned serial : 1;            /* serial mode (C11) */

        unsigned notfound : 1;          /* /FOUND */

        unsigned pblf : 1;              /* PBLF */

        unsigned hamming : 1;           /* hamming-error occurred */

}

vtx_pageinfo_t;

#endif /* _VTX_H */