1 | /* $NetBSD: mtio.h,v 1.24 2015/09/06 06:01:02 dholland Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1982, 1986, 1993 |
5 | * The Regents of the University of California. All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * 3. Neither the name of the University nor the names of its contributors |
16 | * may be used to endorse or promote products derived from this software |
17 | * without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
29 | * SUCH DAMAGE. |
30 | * |
31 | * @(#)mtio.h 8.1 (Berkeley) 6/2/93 |
32 | */ |
33 | |
34 | #ifndef _SYS_MTIO_H_ |
35 | #define _SYS_MTIO_H_ |
36 | |
37 | #include <sys/ioccom.h> |
38 | |
39 | /* |
40 | * Structures and definitions for mag tape io control commands |
41 | */ |
42 | |
43 | /* structure for MTIOCTOP - mag tape op command */ |
44 | struct mtop { |
45 | short mt_op; /* operations defined below */ |
46 | int32_t mt_count; /* how many of them */ |
47 | }; |
48 | |
49 | /* operations */ |
50 | #define MTWEOF 0 /* write an end-of-file record */ |
51 | #define MTFSF 1 /* forward space file */ |
52 | #define MTBSF 2 /* backward space file */ |
53 | #define MTFSR 3 /* forward space record */ |
54 | #define MTBSR 4 /* backward space record */ |
55 | #define MTREW 5 /* rewind */ |
56 | #define MTOFFL 6 /* rewind and put the drive offline */ |
57 | #define MTNOP 7 /* no operation, sets status only */ |
58 | #define MTRETEN 8 /* retension */ |
59 | #define MTERASE 9 /* erase entire tape */ |
60 | #define MTEOM 10 /* forward to end of media */ |
61 | #define MTNBSF 11 /* backward space to beginning of file */ |
62 | #define MTCACHE 12 /* enable controller cache */ |
63 | #define MTNOCACHE 13 /* disable controller cache */ |
64 | #define MTSETBSIZ 14 /* set block size; 0 for variable */ |
65 | #define MTSETDNSTY 15 /* set density code for current mode */ |
66 | #define MTCMPRESS 16 /* set/clear device compression */ |
67 | #define MTEWARN 17 /* set/clear early warning behaviour */ |
68 | |
69 | /* structure for MTIOCGET - mag tape get status command */ |
70 | |
71 | struct mtget { |
72 | short mt_type; /* type of magtape device */ |
73 | /* the following two registers are grossly device dependent */ |
74 | short mt_dsreg; /* ``drive status'' register */ |
75 | short mt_erreg; /* ``error'' register */ |
76 | /* end device-dependent registers */ |
77 | short mt_resid; /* residual count */ |
78 | /* the following two are not yet implemented by most tape drivers */ |
79 | int32_t mt_fileno; /* file number of current position */ |
80 | int32_t mt_blkno; /* block number of current position */ |
81 | /* end not yet implemented */ |
82 | int32_t mt_blksiz; /* current block size */ |
83 | int32_t mt_density; /* current density code */ |
84 | int32_t mt_mblksiz[4]; /* block size for different modes */ |
85 | int32_t mt_mdensity[4]; /* density codes for different modes */ |
86 | }; |
87 | |
88 | /* |
89 | * Constants for mt_type byte. These are the same |
90 | * for controllers compatible with the types listed. |
91 | */ |
92 | #define MT_ISTS 0x01 /* TS-11 */ |
93 | #define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */ |
94 | #define MT_ISTM 0x03 /* TM11/TE10 Unibus */ |
95 | #define MT_ISMT 0x04 /* TM78/TU78 Massbus */ |
96 | #define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */ |
97 | #define MT_ISCPC 0x06 /* SUN */ |
98 | #define MT_ISAR 0x07 /* SUN - Also "GENERIC SCSI" */ |
99 | #define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */ |
100 | #define MT_ISCY 0x09 /* CCI Cipher */ |
101 | #define MT_ISCT 0x0a /* HP 1/4 tape */ |
102 | #define MT_ISFHP 0x0b /* HP 7980 1/2 tape */ |
103 | #define MT_ISEXABYTE 0x0c /* Exabyte */ |
104 | #define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */ |
105 | #define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */ |
106 | #define MT_ISVIPER1 0x0e /* Archive Viper-150 */ |
107 | #define MT_ISPYTHON 0x0f /* Archive Python (DAT) */ |
108 | #define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */ |
109 | #define MT_ISWANGTEK 0x11 /* WANGTEK 5150ES */ |
110 | #define MT_ISCALIPER 0x12 /* Caliper CP150 */ |
111 | #define MT_ISWTEK5099 0x13 /* WANGTEK 5099ES */ |
112 | #define MT_ISVIPER2525 0x14 /* Archive Viper 2525 */ |
113 | #define MT_ISMFOUR 0x11 /* M4 Data 1/2 9track drive */ |
114 | #define MT_ISTK50 0x12 /* DEC SCSI TK50 */ |
115 | #define MT_ISMT02 0x13 /* Emulex MT02 SCSI tape controller */ |
116 | |
117 | /* bits defined for the mt_dsreg field */ |
118 | #define MT_DS_RDONLY 0x10 /* tape mounted readonly */ |
119 | #define MT_DS_MOUNTED 0x03 /* tape mounted (for control opens) */ |
120 | |
121 | /* |
122 | * For the mt_erreg field.....This is supposed to be a *generic* |
123 | * MT interface, so we cannot overload it with SCSI specific entities, |
124 | * (like ASC/ASCQ) nor is there enough room to put all the information |
125 | * in that is desirable. This whole structure should be redone. |
126 | * |
127 | * In the interim, this will be considered device-specific. For SCSI, |
128 | * this will be taken to mean the last Sense Key seen. It is not |
129 | * guaranteed to always be sensibly associated with any command. |
130 | */ |
131 | |
132 | /* |
133 | * The action of a MTIOCGET command clears mt_dsreg, mt_erreg, and mt_resid |
134 | */ |
135 | |
136 | /* mag tape io control commands */ |
137 | #define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */ |
138 | #define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */ |
139 | #define MTIOCIEOT _IO('m', 3) /* ignore EOT error */ |
140 | #define MTIOCEEOT _IO('m', 4) /* enable EOT error */ |
141 | /* |
142 | * When more SCSI-3 SSC (streaming device) devices are out there |
143 | * that support the full 32 byte type 2 structure, we'll have to |
144 | * rethink these ioctls to support all the entities they haul into |
145 | * the picture (64 bit blocks, logical file record numbers, etc..). |
146 | */ |
147 | #define MTIOCRDSPOS _IOR('m', 5, uint32_t) /* get logical blk addr */ |
148 | #define MTIOCRDHPOS _IOR('m', 6, uint32_t) /* get hardware blk addr */ |
149 | #define MTIOCSLOCATE _IOW('m', 5, uint32_t) /* seek to logical blk addr */ |
150 | #define MTIOCHLOCATE _IOW('m', 6, uint32_t) /* seek to hardware blk addr */ |
151 | |
152 | #ifdef _KERNEL |
153 | /* |
154 | * minor device number |
155 | */ |
156 | |
157 | #define T_UNIT 003 /* unit selection */ |
158 | #define T_NOREWIND 004 /* no rewind on close */ |
159 | #define T_DENSEL 030 /* density select */ |
160 | #define T_800BPI 000 /* select 800 bpi */ |
161 | #define T_1600BPI 010 /* select 1600 bpi */ |
162 | #define T_6250BPI 020 /* select 6250 bpi */ |
163 | #define T_BADBPI 030 /* undefined selection */ |
164 | #endif /* _KERNEL */ |
165 | |
166 | #endif /* !_SYS_MTIO_H_ */ |
167 | |