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_ */ 148