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1.1 root 1: /*
2: * Mach Operating System
3: * Copyright (c) 1991,1990,1989 Carnegie Mellon University
4: * All Rights Reserved.
5: *
6: * Permission to use, copy, modify and distribute this software and its
7: * documentation is hereby granted, provided that both the copyright
8: * notice and this permission notice appear in all copies of the
9: * software, derivative works or modified versions, and any portions
10: * thereof, and that both notices appear in supporting documentation.
11: *
12: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
13: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14: * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15: *
16: * Carnegie Mellon requests users of this software to return to
17: *
18: * Software Distribution Coordinator or [email protected]
19: * School of Computer Science
20: * Carnegie Mellon University
21: * Pittsburgh PA 15213-3890
22: *
23: * any improvements or extensions that they make and grant Carnegie Mellon
24: * the rights to redistribute these changes.
25: */
26: /*
27: * Copyright (c) 1982, 1986 The Regents of the University of California.
28: * All rights reserved.
29: *
30: * Redistribution and use in source and binary forms are permitted
31: * provided that the above copyright notice and this paragraph are
32: * duplicated in all such forms and that any documentation,
33: * advertising materials, and other materials related to such
34: * distribution and use acknowledge that the software was developed
35: * by the University of California, Berkeley. The name of the
36: * University may not be used to endorse or promote products derived
37: * from this software without specific prior written permission.
38: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
39: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
40: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
41: *
42: * @(#)mtio.h 7.4 (Berkeley) 8/31/88
43: */
44:
45: #ifndef _TAPE_STATUS_H_
46: #define _TAPE_STATUS_H_
47:
48: /*
49: * Tape status
50: */
51:
52: struct tape_status {
53: unsigned int mt_type;
54: unsigned int speed;
55: unsigned int density;
56: unsigned int flags;
57: # define TAPE_FLG_REWIND 0x1
58: # define TAPE_FLG_WP 0x2
59: };
60: #define TAPE_STATUS_COUNT (sizeof(struct tape_status)/sizeof(int))
61: #define TAPE_STATUS (('m'<<16) + 1)
62:
63: /*
64: * Constants for mt_type. These are the same
65: * for controllers compatible with the types listed.
66: */
67: #define MT_ISTS 0x01 /* TS-11 */
68: #define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */
69: #define MT_ISTM 0x03 /* TM11/TE10 Unibus */
70: #define MT_ISMT 0x04 /* TM78/TU78 Massbus */
71: #define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */
72: #define MT_ISCPC 0x06 /* SUN */
73: #define MT_ISAR 0x07 /* SUN */
74: #define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */
75: #define MT_ISCY 0x09 /* CCI Cipher */
76: #define MT_ISSCSI 0x0a /* SCSI tape (all brands) */
77:
78:
79: /*
80: * Set status parameters
81: */
82:
83: struct tape_params {
84: unsigned int mt_operation;
85: unsigned int mt_repeat_count;
86: };
87:
88: /* operations */
89: #define MTWEOF 0 /* write an end-of-file record */
90: #define MTFSF 1 /* forward space file */
91: #define MTBSF 2 /* backward space file */
92: #define MTFSR 3 /* forward space record */
93: #define MTBSR 4 /* backward space record */
94: #define MTREW 5 /* rewind */
95: #define MTOFFL 6 /* rewind and put the drive offline */
96: #define MTNOP 7 /* no operation, sets status only */
97: #define MTCACHE 8 /* enable controller cache */
98: #define MTNOCACHE 9 /* disable controller cache */
99:
100:
101: /*
102: * U*x compatibility
103: */
104:
105: /* structure for MTIOCGET - mag tape get status command */
106:
107: struct mtget {
108: short mt_type; /* type of magtape device */
109: /* the following two registers are grossly device dependent */
110: short mt_dsreg; /* ``drive status'' register */
111: short mt_erreg; /* ``error'' register */
112: /* end device-dependent registers */
113: short mt_resid; /* residual count */
114: /* the following two are not yet implemented */
115: unsigned long mt_fileno; /* file number of current position */
116: unsigned long mt_blkno; /* block number of current position */
117: /* end not yet implemented */
118: };
119:
120:
121: /* mag tape io control commands */
122: #define MTIOCTOP _IOW('m', 1, struct tape_params)/* do a mag tape op */
123: #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
124: #define MTIOCIEOT _IO('m', 3) /* ignore EOT error */
125: #define MTIOCEEOT _IO('m', 4) /* enable EOT error */
126:
127:
128: #endif _TAPE_STATUS_H_
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