diff options
Diffstat (limited to 'include/linux/videotext.h')
| -rw-r--r-- | include/linux/videotext.h | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/include/linux/videotext.h b/include/linux/videotext.h new file mode 100644 index 00000000000..018f92047ff --- /dev/null +++ b/include/linux/videotext.h @@ -0,0 +1,125 @@ +#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 __user *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 */ |