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#ifndef _VTX_H
#define _VTX_H

/* $Id: videotext.h,v 1.1 2004-01-28 15:27:00 giacomo Exp $
 *
 * Copyright (c) 1994-97 Martin Buck  <martin-2.buck@student.uni-ulm.de>
 * Read COPYING for more information
 *
 */


/*
 *      Videotext ioctls
 */
#define VTXIOCGETINFO  0x7101  /* get version of driver & capabilities of vtx-chipset */
#define VTXIOCCLRPAGE  0x7102  /* clear page-buffer */
#define VTXIOCCLRFOUND 0x7103  /* clear bits indicating that page was found */
#define VTXIOCPAGEREQ  0x7104  /* search for page */
#define VTXIOCGETSTAT  0x7105  /* get status of page-buffer */
#define VTXIOCGETPAGE  0x7106  /* get contents of page-buffer */
#define VTXIOCSTOPDAU  0x7107  /* stop data acquisition unit */
#define VTXIOCPUTPAGE  0x7108  /* display page on TV-screen */
#define VTXIOCSETDISP  0x7109  /* set TV-mode */
#define VTXIOCPUTSTAT  0x710a  /* set status of TV-output-buffer */
#define VTXIOCCLRCACHE 0x710b  /* clear cache on VTX-interface (if avail.) */
#define VTXIOCSETVIRT  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 *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;


/*
 *      Definitions for VTXIOCSETDISP
 */
 
typedef enum {
        DISPOFF, DISPNORM, DISPTRANS, DISPINS, INTERLACE_OFFSET
} vtxdisp_t;



/*
 *      Tuner ioctls
 */
 
#define TUNIOCGETINFO  0x7201  /* get version of driver & capabilities of tuner */
#define TUNIOCRESET    0x7202  /* reset tuner */
#define TUNIOCSETFREQ  0x7203  /* set tuning frequency (unit: kHz) */
#define TUNIOCGETFREQ  0x7204  /* get tuning frequency (unit: kHz) */
#define TUNIOCSETCHAN  0x7205  /* set tuning channel */
#define TUNIOCGETCHAN  0x7206  /* get tuning channel */


typedef struct
{
        int version_major, version_minor;       /* version of driver; if version_major changes, driver */
                                                /* is not backward compatible!!! CHECK THIS!!! */  
        unsigned freq : 1;                      /* tuner can be set to given frequency */
        unsigned chan : 1;                      /* tuner stores several channels */
        unsigned scan : 1;                      /* tuner supports scanning */
        unsigned autoscan : 1;          /* tuner supports scanning with automatic stop */
        unsigned afc : 1;                       /* tuner supports AFC */
        unsigned dummy1, dummy2, dummy3, dummy4, dummy5, dummy6, dummy7, dummy8, dummy9, dummy10,
                dummy11 : 1;
        int dummy12, dummy13, dummy14, dummy15, dummy16, dummy17, dummy18, dummy19;
} tuner_info_t;


#endif /* _VTX_H */