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 */
43struct 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
68struct 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_ */