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