Edit File: videotext.h
#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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