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Diffstat (limited to 'include/device/tape_status.h')
| -rw-r--r-- | include/device/tape_status.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/include/device/tape_status.h b/include/device/tape_status.h new file mode 100644 index 00000000..e14479d2 --- /dev/null +++ b/include/device/tape_status.h @@ -0,0 +1,128 @@ +/* + * Mach Operating System + * Copyright (c) 1991,1990,1989 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * Copyright (c) 1982, 1986 The Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms are permitted + * provided that the above copyright notice and this paragraph are + * duplicated in all such forms and that any documentation, + * advertising materials, and other materials related to such + * distribution and use acknowledge that the software was developed + * by the University of California, Berkeley. The name of the + * University may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. + * + * @(#)mtio.h 7.4 (Berkeley) 8/31/88 + */ + +#ifndef _TAPE_STATUS_H_ +#define _TAPE_STATUS_H_ + +/* + * Tape status + */ + +struct tape_status { + unsigned int mt_type; + unsigned int speed; + unsigned int density; + unsigned int flags; +# define TAPE_FLG_REWIND 0x1 +# define TAPE_FLG_WP 0x2 +}; +#define TAPE_STATUS_COUNT (sizeof(struct tape_status)/sizeof(int)) +#define TAPE_STATUS (('m'<<16) + 1) + +/* + * Constants for mt_type. These are the same + * for controllers compatible with the types listed. + */ +#define MT_ISTS 0x01 /* TS-11 */ +#define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */ +#define MT_ISTM 0x03 /* TM11/TE10 Unibus */ +#define MT_ISMT 0x04 /* TM78/TU78 Massbus */ +#define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */ +#define MT_ISCPC 0x06 /* SUN */ +#define MT_ISAR 0x07 /* SUN */ +#define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */ +#define MT_ISCY 0x09 /* CCI Cipher */ +#define MT_ISSCSI 0x0a /* SCSI tape (all brands) */ + + +/* + * Set status parameters + */ + +struct tape_params { + unsigned int mt_operation; + unsigned int mt_repeat_count; +}; + +/* operations */ +#define MTWEOF 0 /* write an end-of-file record */ +#define MTFSF 1 /* forward space file */ +#define MTBSF 2 /* backward space file */ +#define MTFSR 3 /* forward space record */ +#define MTBSR 4 /* backward space record */ +#define MTREW 5 /* rewind */ +#define MTOFFL 6 /* rewind and put the drive offline */ +#define MTNOP 7 /* no operation, sets status only */ +#define MTCACHE 8 /* enable controller cache */ +#define MTNOCACHE 9 /* disable controller cache */ + + +/* + * U*x compatibility + */ + +/* structure for MTIOCGET - mag tape get status command */ + +struct mtget { + short mt_type; /* type of magtape device */ +/* the following two registers are grossly device dependent */ + short mt_dsreg; /* ``drive status'' register */ + short mt_erreg; /* ``error'' register */ +/* end device-dependent registers */ + short mt_resid; /* residual count */ +/* the following two are not yet implemented */ + unsigned long mt_fileno; /* file number of current position */ + unsigned long mt_blkno; /* block number of current position */ +/* end not yet implemented */ +}; + + +/* mag tape io control commands */ +#define MTIOCTOP _IOW('m', 1, struct tape_params)/* do a mag tape op */ +#define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */ +#define MTIOCIEOT _IO('m', 3) /* ignore EOT error */ +#define MTIOCEEOT _IO('m', 4) /* enable EOT error */ + + +#endif _TAPE_STATUS_H_ |