bsd/sys/mtio.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*
  24  * Copyright (c) 1982, 1986, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)mtio.h      8.1 (Berkeley) 6/2/93
  56  */
  57
  58 #ifndef _SYS_MTIO_H_
  59 #define _SYS_MTIO_H_
  60
  61 /*
  62  * Structures and definitions for mag tape io control commands
  63  */
  64
  65 /* structure for MTIOCTOP - mag tape op command */
  66 struct mtop {
  67         short   mt_op;          /* operations defined below */
  68         daddr_t mt_count;       /* how many of them */
  69 };
  70
  71 /* operations */
  72 #define MTWEOF          0       /* write an end-of-file record */
  73 #define MTFSF           1       /* forward space file */
  74 #define MTBSF           2       /* backward space file */
  75 #define MTFSR           3       /* forward space record */
  76 #define MTBSR           4       /* backward space record */
  77 #define MTREW           5       /* rewind */
  78 #define MTOFFL          6       /* rewind and put the drive offline */
  79 #define MTNOP           7       /* no operation, sets status only */
  80 #define MTRETEN         8       /* retension */
  81 #define MTERASE         9       /* erase entire tape */
  82 #define MTEOM           10      /* forward to end of media */
  83 #define MTNBSF          11      /* backward space to beginning of file */
  84 #define MTCACHE         12      /* enable controller cache */
  85 #define MTNOCACHE       13      /* disable controller cache */
  86 #define MTSETBSIZ       14      /* set block size; 0 for variable */
  87 #define MTSETDNSTY      15      /* set density code for current mode */
  88
  89 /* structure for MTIOCGET - mag tape get status command */
  90
  91 struct mtget {
  92         short   mt_type;        /* type of magtape device */
  93 /* the following two registers are grossly device dependent */
  94         u_short mt_dsreg;       /* ``drive status'' register. SCSI sense byte 0x02.  */
  95         u_short mt_erreg;       /* ``error'' register. SCSI sense byte 0x0C. */
  96         u_short mt_ext_err0;    /* SCSI sense bytes 0x13..0x14 */
  97         u_short mt_ext_err1;    /* SCSI sense bytes 0x15..0x16 */
  98 /* end device-dependent registers */
  99         short   mt_resid;       /* residual count */
 100 /* the following two are not yet implemented */
 101         daddr_t mt_fileno;      /* file number of current position */
 102         daddr_t mt_blkno;       /* block number of current position */
 103 /* end not yet implemented */
 104         daddr_t mt_blksiz;      /* current block size */
 105         daddr_t mt_density;     /* current density code */
 106         daddr_t mt_mblksiz[4];  /* block size for different modes */
 107         daddr_t mt_mdensity[4]; /* density codes for different modes */
 108 };
 109
 110 /*
 111  * Constants for mt_type byte.  These are the same
 112  * for controllers compatible with the types listed.
 113  */
 114 #define MT_ISTS         0x01            /* TS-11 */
 115 #define MT_ISHT         0x02            /* TM03 Massbus: TE16, TU45, TU77 */
 116 #define MT_ISTM         0x03            /* TM11/TE10 Unibus */
 117 #define MT_ISMT         0x04            /* TM78/TU78 Massbus */
 118 #define MT_ISUT         0x05            /* SI TU-45 emulation on Unibus */
 119 #define MT_ISCPC        0x06            /* SUN */
 120 #define MT_ISAR         0x07            /* SUN */
 121 #define MT_ISTMSCP      0x08            /* DEC TMSCP protocol (TU81, TK50) */
 122 #define MT_ISCY         0x09            /* CCI Cipher */
 123 #define MT_ISCT         0x0a            /* HP 1/4 tape */
 124 #define MT_ISFHP        0x0b            /* HP 7980 1/2 tape */
 125 #define MT_ISEXABYTE    0x0c            /* Exabyte */
 126 #define MT_ISEXA8200    0x0c            /* Exabyte EXB-8200 */
 127 #define MT_ISEXA8500    0x0d            /* Exabyte EXB-8500 */
 128 #define MT_ISVIPER1     0x0e            /* Archive Viper-150 */
 129 #define MT_ISPYTHON     0x0f            /* Archive Python (DAT) */
 130 #define MT_ISHPDAT      0x10            /* HP 35450A DAT drive */
 131 #define MT_ISWANGTEK    0x11            /* WANGTEK 5150ES */
 132 #define MT_ISCALIPER    0x12            /* Caliper CP150 */
 133 #define MT_ISWTEK5099   0x13            /* WANGTEK 5099ES */
 134 #define MT_ISVIPER2525  0x14            /* Archive Viper 2525 */
 135 #define MT_ISMFOUR      0x11            /* M4 Data 1/2 9track drive */
 136 #define MT_ISTK50       0x12            /* DEC SCSI TK50 */
 137 #define MT_ISMT02       0x13            /* Emulex MT02 SCSI tape controller */
 138 #define MT_ISGS         0x14            /* Generic SCSI Tape */
 139
 140 /* mag tape io control commands */
 141 #define MTIOCTOP        _IOW('m', 1, struct mtop)       /* do a mag tape op */
 142 #define MTIOCGET        _IOR('m', 2, struct mtget)      /* get tape status */
 143 #define MTIOCIEOT       _IO('m', 3)                     /* ignore EOT error */
 144 #define MTIOCEEOT       _IO('m', 4)                     /* enable EOT error */
 145
 146 #ifndef KERNEL
 147 #define DEFTAPE "/dev/rst0"
 148 #endif
 149
 150 #ifdef  KERNEL
 151 /*
 152  * minor device number
 153  */
 154
 155 #define T_UNIT          003             /* unit selection */
 156 #define T_NOREWIND      004             /* no rewind on close */
 157 #define T_DENSEL        030             /* density select */
 158 #define T_800BPI        000             /* select  800 bpi */
 159 #define T_1600BPI       010             /* select 1600 bpi */
 160 #define T_6250BPI       020             /* select 6250 bpi */
 161 #define T_BADBPI        030             /* undefined selection */
 162 #endif
 163 #endif  /* !_SYS_MTIO_H_ */