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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 *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 */
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