Annotation of sys/sys/mtio.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: mtio.h,v 1.9 2007/06/01 18:44:48 krw Exp $ */
2: /* $NetBSD: mtio.h,v 1.14 1997/04/15 06:50:19 lukem Exp $ */
3:
4: /*
5: * Copyright (c) 1982, 1986, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. Neither the name of the University nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * @(#)mtio.h 8.1 (Berkeley) 6/2/93
33: */
34:
35: #ifndef _SYS_MTIO_H_
36: #define _SYS_MTIO_H_
37:
38: /*
39: * Structures and definitions for mag tape io control commands
40: */
41:
42: /* structure for MTIOCTOP - mag tape op command */
43: struct mtop {
44: short mt_op; /* operations defined below */
45: int mt_count; /* how many of them */
46: };
47:
48: /* operations */
49: #define MTWEOF 0 /* write an end-of-file record */
50: #define MTFSF 1 /* forward space file */
51: #define MTBSF 2 /* backward space file */
52: #define MTFSR 3 /* forward space record */
53: #define MTBSR 4 /* backward space record */
54: #define MTREW 5 /* rewind */
55: #define MTOFFL 6 /* rewind and put the drive offline */
56: #define MTNOP 7 /* no operation, sets status only */
57: #define MTRETEN 8 /* retension */
58: #define MTERASE 9 /* erase entire tape */
59: #define MTEOM 10 /* forward to end of media */
60: #define MTNBSF 11 /* backward space to beginning of file */
61: #define MTCACHE 12 /* enable controller cache */
62: #define MTNOCACHE 13 /* disable controller cache */
63: #define MTSETBSIZ 14 /* set block size; 0 for variable */
64: #define MTSETDNSTY 15 /* set density code for current mode */
65:
66: /* structure for MTIOCGET - mag tape get status command */
67:
68: struct mtget {
69: short mt_type; /* type of magtape device */
70: /* the following two registers are grossly device dependent */
71: short mt_dsreg; /* ``drive status'' register */
72: short mt_erreg; /* ``error'' register */
73: /* end device-dependent registers */
74: short mt_resid; /* residual count */
75: int mt_fileno; /* current file number relative to BOT. */
76: int mt_blkno; /* current block number relative to BOF. */
77: int mt_blksiz; /* current block size */
78: int mt_density; /* current density code */
79: int mt_mblksiz; /* default block size */
80: int mt_mdensity; /* default density code */
81: };
82:
83: /*
84: * Constants for mt_type byte. These are the same
85: * for controllers compatible with the types listed.
86: */
87: #define MT_ISTS 0x01 /* TS-11 */
88: #define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */
89: #define MT_ISTM 0x03 /* TM11/TE10 Unibus */
90: #define MT_ISMT 0x04 /* TM78/TU78 Massbus */
91: #define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */
92: #define MT_ISCPC 0x06 /* SUN */
93: #define MT_ISAR 0x07 /* SUN */
94: #define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */
95: #define MT_ISCY 0x09 /* CCI Cipher */
96: #define MT_ISCT 0x0a /* HP 1/4 tape */
97: #define MT_ISFHP 0x0b /* HP 7980 1/2 tape */
98: #define MT_ISEXABYTE 0x0c /* Exabyte */
99: #define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */
100: #define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */
101: #define MT_ISVIPER1 0x0e /* Archive Viper-150 */
102: #define MT_ISPYTHON 0x0f /* Archive Python (DAT) */
103: #define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */
104: #define MT_ISWANGTEK 0x11 /* WANGTEK 5150ES */
105: #define MT_ISCALIPER 0x12 /* Caliper CP150 */
106: #define MT_ISWTEK5099 0x13 /* WANGTEK 5099ES */
107: #define MT_ISVIPER2525 0x14 /* Archive Viper 2525 */
108: #define MT_ISMFOUR 0x11 /* M4 Data 1/2 9track drive */
109: #define MT_ISTK50 0x12 /* DEC SCSI TK50 */
110: #define MT_ISMT02 0x13 /* Emulex MT02 SCSI tape controller */
111:
112: /* bits defined for the mt_dsreg field */
113: #define MT_DS_RDONLY 0x10 /* tape mounted readonly */
114: #define MT_DS_MOUNTED 0x03 /* tape mounted (for control opens) */
115:
116: /* mag tape io control commands */
117: #define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
118: #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
119: #define MTIOCIEOT _IO('m', 3) /* ignore EOT error */
120: #define MTIOCEEOT _IO('m', 4) /* enable EOT error */
121:
122: /*
123: * When more SCSI-3 SSC (streaming device) devices are out there
124: * that support the full 32 byte type 2 structure, we'll have to
125: * rethink these ioctls to support all the entities they haul into
126: * the picture (64 bit blocks, logical file record numbers, etc..).
127: */
128: #define MTIOCRDSPOS _IOR('m', 5, u_int32_t) /* get logical blk addr */
129: #define MTIOCRDHPOS _IOR('m', 6, u_int32_t) /* get hardware blk addr */
130: #define MTIOCSLOCATE _IOW('m', 5, u_int32_t) /* seek to logical blk addr */
131: #define MTIOCHLOCATE _IOW('m', 6, u_int32_t) /* seek to hardware blk addr */
132:
133: #ifdef _KERNEL
134: /*
135: * minor device number
136: */
137:
138: #define T_UNIT 003 /* unit selection */
139: #define T_NOREWIND 004 /* no rewind on close */
140: #define T_DENSEL 030 /* density select */
141: #define T_800BPI 000 /* select 800 bpi */
142: #define T_1600BPI 010 /* select 1600 bpi */
143: #define T_6250BPI 020 /* select 6250 bpi */
144: #define T_BADBPI 030 /* undefined selection */
145: #endif /* _KERNEL */
146:
147: #endif /* !_SYS_MTIO_H_ */
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