9d39282ae9
Cleanup in curses.h: removed reg definition. All include files reformatted for 4-space indent.
76 lines
2.9 KiB
C
76 lines
2.9 KiB
C
/*
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* Copyright (c) 1982, 1986 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*
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* @(#)mtio.h 7.1.2 (2.11BSD) 1998/3/7
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*/
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/*
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* Structures and definitions for mag tape io control commands
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*/
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/* structure for MTIOCTOP - mag tape op command */
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struct mtop {
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short mt_op; /* operations defined below */
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daddr_t mt_count; /* how many of them */
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};
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/* operations */
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#define MTWEOF 0 /* write an end-of-file record */
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#define MTFSF 1 /* forward space file */
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#define MTBSF 2 /* backward space file */
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#define MTFSR 3 /* forward space record */
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#define MTBSR 4 /* backward space record */
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#define MTREW 5 /* rewind */
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#define MTOFFL 6 /* rewind and put the drive offline */
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#define MTNOP 7 /* no operation, sets status only */
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#define MTCACHE 8 /* enable controller cache */
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#define MTNOCACHE 9 /* disable controller cache */
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#define MTFLUSH 10 /* flush cache */
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/* structure for MTIOCGET - mag tape get status command */
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struct mtget {
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short mt_type; /* type of magtape device */
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/* the following two registers are grossly device dependent */
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short mt_dsreg; /* ``drive status'' register */
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short mt_erreg; /* ``error'' register */
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/* end device-dependent registers */
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short mt_resid; /* residual count */
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/* the following two are not yet implemented */
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daddr_t mt_fileno; /* file number of current position */
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daddr_t mt_blkno; /* block number of current position */
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/* end not yet implemented */
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};
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/*
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* Constants for mt_type byte. These are the same
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* for other controllers compatible with the types listed.
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*/
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#define MT_ISTS 0x01 /* TS-11 */
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#define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */
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#define MT_ISTM 0x03 /* TM11/TE10 Unibus */
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#define MT_ISMT 0x04 /* TM78/TU78 Massbus */
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#define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */
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#define MT_ISCPC 0x06 /* SUN */
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#define MT_ISAR 0x07 /* SUN */
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#define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */
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/*
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* At present only the TMSCP driver reports this information in the
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* high byte of the 'drive status' word. Other drives will (hopefully)
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* be updated in the future.
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*/
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#define MTF_BOM 0x01 /* At beginning of media */
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#define MTF_EOM 0x02 /* At the end of media */
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#define MTF_OFFLINE 0x04 /* Drive is offline */
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#define MTF_WRTLCK 0x08 /* Drive is write protected */
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#define MTF_WRITTEN 0x10 /* Tape has been written */
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/* mag tape io control commands */
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#define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
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#define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
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#define MTIOCIEOT _IO ('m', 3) /* ignore EOT error */
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#define MTIOCEEOT _IO ('m', 4) /* enable EOT error */
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