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1.1 root 1: /*
2: * Copyright (c) 1982, 1986 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. All advertising materials mentioning features or use of this software
14: * must display the following acknowledgement:
15: * This product includes software developed by the University of
16: * California, Berkeley and its contributors.
17: * 4. Neither the name of the University nor the names of its contributors
18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
33: * @(#)mtio.h 7.6 (Berkeley) 2/5/91
34: */
35:
36: /*
37: * Structures and definitions for mag tape io control commands
38: */
39:
40: /* structure for MTIOCTOP - mag tape op command */
41: struct mtop {
42: short mt_op; /* operations defined below */
43: daddr_t mt_count; /* how many of them */
44: };
45:
46: /* operations */
47: #define MTWEOF 0 /* write an end-of-file record */
48: #define MTFSF 1 /* forward space file */
49: #define MTBSF 2 /* backward space file */
50: #define MTFSR 3 /* forward space record */
51: #define MTBSR 4 /* backward space record */
52: #define MTREW 5 /* rewind */
53: #define MTOFFL 6 /* rewind and put the drive offline */
54: #define MTNOP 7 /* no operation, sets status only */
55: #define MTCACHE 8 /* enable controller cache */
56: #define MTNOCACHE 9 /* disable controller cache */
57:
58: /* structure for MTIOCGET - mag tape get status command */
59:
60: struct mtget {
61: short mt_type; /* type of magtape device */
62: /* the following two registers are grossly device dependent */
63: short mt_dsreg; /* ``drive status'' register */
64: short mt_erreg; /* ``error'' register */
65: /* end device-dependent registers */
66: short mt_resid; /* residual count */
67: /* the following two are not yet implemented */
68: daddr_t mt_fileno; /* file number of current position */
69: daddr_t mt_blkno; /* block number of current position */
70: /* end not yet implemented */
71: };
72:
73: /*
74: * Constants for mt_type byte. These are the same
75: * for controllers compatible with the types listed.
76: */
77: #define MT_ISTS 0x01 /* TS-11 */
78: #define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */
79: #define MT_ISTM 0x03 /* TM11/TE10 Unibus */
80: #define MT_ISMT 0x04 /* TM78/TU78 Massbus */
81: #define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */
82: #define MT_ISCPC 0x06 /* SUN */
83: #define MT_ISAR 0x07 /* SUN */
84: #define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */
85: #define MT_ISCY 0x09 /* CCI Cipher */
86: #define MT_ISCT 0x0a /* HP 1/4 tape */
87: #define MT_ISFHP 0x0b /* HP 7980 1/2 tape */
88: #define MT_ISEXABYTE 0x0c /* Exabyte */
89: #define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */
90: #define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */
91: #define MT_ISVIPER1 0x0e /* Archive Viper-150 */
92: #define MT_ISPYTHON 0x0f /* Archive Python (DAT) */
93: #define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */
94:
95: /* mag tape io control commands */
96: #define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
97: #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
98: #define MTIOCIEOT _IO('m', 3) /* ignore EOT error */
99: #define MTIOCEEOT _IO('m', 4) /* enable EOT error */
100:
101: #ifndef KERNEL
102: #define DEFTAPE "/dev/rmt12"
103: #endif
104:
105: #ifdef KERNEL
106: /*
107: * minor device number
108: */
109:
110: #define T_UNIT 003 /* unit selection */
111: #define T_NOREWIND 004 /* no rewind on close */
112: #define T_DENSEL 030 /* density select */
113: #define T_800BPI 000 /* select 800 bpi */
114: #define T_1600BPI 010 /* select 1600 bpi */
115: #define T_6250BPI 020 /* select 6250 bpi */
116: #define T_BADBPI 030 /* undefined selection */
117: #endif
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