1 #ifndef _VTX_H 2 #define _VTX_H 3 4 /* 5 * Teletext (=Videotext) hardware decoders using interface /dev/vtx 6 * Do not confuse with drivers using /dev/vbi which decode videotext by software 7 * 8 * Videotext IOCTLs changed in order to use _IO() macros defined in <linux/ioctl.h>, 9 * unused tuner IOCTLs cleaned up by 10 * Michael Geng <linux (at) MichaelGeng.de> 11 * 12 * Copyright (c) 1994-97 Martin Buck <martin-2.buck (at) student.uni-ulm.de> 13 * Read COPYING for more information 14 * 15 */ 16 17 18 /* 19 * Videotext ioctls 20 */ 21 #define VTXIOCGETINFO _IOR (0x81, 1, vtx_info_t) 22 #define VTXIOCCLRPAGE _IOW (0x81, 2, vtx_pagereq_t) 23 #define VTXIOCCLRFOUND _IOW (0x81, 3, vtx_pagereq_t) 24 #define VTXIOCPAGEREQ _IOW (0x81, 4, vtx_pagereq_t) 25 #define VTXIOCGETSTAT _IOW (0x81, 5, vtx_pagereq_t) 26 #define VTXIOCGETPAGE _IOW (0x81, 6, vtx_pagereq_t) 27 #define VTXIOCSTOPDAU _IOW (0x81, 7, vtx_pagereq_t) 28 #define VTXIOCPUTPAGE _IO (0x81, 8) 29 #define VTXIOCSETDISP _IO (0x81, 9) 30 #define VTXIOCPUTSTAT _IO (0x81, 10) 31 #define VTXIOCCLRCACHE _IO (0x81, 11) 32 #define VTXIOCSETVIRT _IOW (0x81, 12, long) 33 34 /* for compatibility, will go away some day */ 35 #define VTXIOCGETINFO_OLD 0x7101 /* get version of driver & capabilities of vtx-chipset */ 36 #define VTXIOCCLRPAGE_OLD 0x7102 /* clear page-buffer */ 37 #define VTXIOCCLRFOUND_OLD 0x7103 /* clear bits indicating that page was found */ 38 #define VTXIOCPAGEREQ_OLD 0x7104 /* search for page */ 39 #define VTXIOCGETSTAT_OLD 0x7105 /* get status of page-buffer */ 40 #define VTXIOCGETPAGE_OLD 0x7106 /* get contents of page-buffer */ 41 #define VTXIOCSTOPDAU_OLD 0x7107 /* stop data acquisition unit */ 42 #define VTXIOCPUTPAGE_OLD 0x7108 /* display page on TV-screen */ 43 #define VTXIOCSETDISP_OLD 0x7109 /* set TV-mode */ 44 #define VTXIOCPUTSTAT_OLD 0x710a /* set status of TV-output-buffer */ 45 #define VTXIOCCLRCACHE_OLD 0x710b /* clear cache on VTX-interface (if avail.) */ 46 #define VTXIOCSETVIRT_OLD 0x710c /* turn on virtual mode (this disables TV-display) */ 47 48 /* 49 * Definitions for VTXIOCGETINFO 50 */ 51 52 #define SAA5243 0 53 #define SAA5246 1 54 #define SAA5249 2 55 #define SAA5248 3 56 #define XSTV5346 4 57 58 typedef struct { 59 int version_major, version_minor; /* version of driver; if version_major changes, driver */ 60 /* is not backward compatible!!! CHECK THIS!!! */ 61 int numpages; /* number of page-buffers of vtx-chipset */ 62 int cct_type; /* type of vtx-chipset (SAA5243, SAA5246, SAA5248 or 63 * SAA5249) */ 64 } 65 vtx_info_t; 66 67 68 /* 69 * Definitions for VTXIOC{CLRPAGE,CLRFOUND,PAGEREQ,GETSTAT,GETPAGE,STOPDAU,PUTPAGE,SETDISP} 70 */ 71 72 #define MIN_UNIT (1<<0) 73 #define MIN_TEN (1<<1) 74 #define HR_UNIT (1<<2) 75 #define HR_TEN (1<<3) 76 #define PG_UNIT (1<<4) 77 #define PG_TEN (1<<5) 78 #define PG_HUND (1<<6) 79 #define PGMASK_MAX (1<<7) 80 #define PGMASK_PAGE (PG_HUND | PG_TEN | PG_UNIT) 81 #define PGMASK_HOUR (HR_TEN | HR_UNIT) 82 #define PGMASK_MINUTE (MIN_TEN | MIN_UNIT) 83 84 typedef struct 85 { 86 int page; /* number of requested page (hexadecimal) */ 87 int hour; /* requested hour (hexadecimal) */ 88 int minute; /* requested minute (hexadecimal) */ 89 int pagemask; /* mask defining which values of the above are set */ 90 int pgbuf; /* buffer where page will be stored */ 91 int start; /* start of requested part of page */ 92 int end; /* end of requested part of page */ 93 void *buffer; /* pointer to beginning of destination buffer */ 94 } 95 vtx_pagereq_t; 96 97 98 /* 99 * Definitions for VTXIOC{GETSTAT,PUTSTAT} 100 */ 101 102 #define VTX_PAGESIZE (40 * 24) 103 #define VTX_VIRTUALSIZE (40 * 49) 104 105 typedef struct 106 { 107 int pagenum; /* number of page (hexadecimal) */ 108 int hour; /* hour (hexadecimal) */ 109 int minute; /* minute (hexadecimal) */ 110 int charset; /* national charset */ 111 unsigned delete : 1; /* delete page (C4) */ 112 unsigned headline : 1; /* insert headline (C5) */ 113 unsigned subtitle : 1; /* insert subtitle (C6) */ 114 unsigned supp_header : 1; /* suppress header (C7) */ 115 unsigned update : 1; /* update page (C8) */ 116 unsigned inter_seq : 1; /* interrupted sequence (C9) */ 117 unsigned dis_disp : 1; /* disable/suppress display (C10) */ 118 unsigned serial : 1; /* serial mode (C11) */ 119 unsigned notfound : 1; /* /FOUND */ 120 unsigned pblf : 1; /* PBLF */ 121 unsigned hamming : 1; /* hamming-error occurred */ 122 } 123 vtx_pageinfo_t; 124 125 #endif /* _VTX_H */ 126
