4549585b43
read logical or hardware block position and to space to logical or hardware block position.
149 lines
6.2 KiB
C
149 lines
6.2 KiB
C
/* $NetBSD: mtio.h,v 1.15 1997/09/29 19:25:26 mjacob Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)mtio.h 8.1 (Berkeley) 6/2/93
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*/
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#ifndef _SYS_MTIO_H_
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#define _SYS_MTIO_H_
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/*
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* Structures and definitions for mag tape io control commands
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*/
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/* structure for MTIOCTOP - mag tape op command */
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struct mtop {
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short mt_op; /* operations defined below */
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daddr_t mt_count; /* how many of them */
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};
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/* operations */
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#define MTWEOF 0 /* write an end-of-file record */
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#define MTFSF 1 /* forward space file */
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#define MTBSF 2 /* backward space file */
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#define MTFSR 3 /* forward space record */
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#define MTBSR 4 /* backward space record */
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#define MTREW 5 /* rewind */
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#define MTOFFL 6 /* rewind and put the drive offline */
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#define MTNOP 7 /* no operation, sets status only */
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#define MTRETEN 8 /* retension */
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#define MTERASE 9 /* erase entire tape */
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#define MTEOM 10 /* forward to end of media */
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#define MTNBSF 11 /* backward space to beginning of file */
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#define MTCACHE 12 /* enable controller cache */
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#define MTNOCACHE 13 /* disable controller cache */
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#define MTSETBSIZ 14 /* set block size; 0 for variable */
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#define MTSETDNSTY 15 /* set density code for current mode */
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#define MTCMPRESS 16 /* set/clear device compression */
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/* structure for MTIOCGET - mag tape get status command */
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struct mtget {
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short mt_type; /* type of magtape device */
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/* the following two registers are grossly device dependent */
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short mt_dsreg; /* ``drive status'' register */
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short mt_erreg; /* ``error'' register */
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/* end device-dependent registers */
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short mt_resid; /* residual count */
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/* the following two are not yet implemented */
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daddr_t mt_fileno; /* file number of current position */
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daddr_t mt_blkno; /* block number of current position */
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/* end not yet implemented */
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daddr_t mt_blksiz; /* current block size */
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daddr_t mt_density; /* current density code */
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daddr_t mt_mblksiz[4]; /* block size for different modes */
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daddr_t mt_mdensity[4]; /* density codes for different modes */
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};
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/*
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* Constants for mt_type byte. These are the same
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* for controllers compatible with the types listed.
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*/
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#define MT_ISTS 0x01 /* TS-11 */
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#define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */
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#define MT_ISTM 0x03 /* TM11/TE10 Unibus */
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#define MT_ISMT 0x04 /* TM78/TU78 Massbus */
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#define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */
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#define MT_ISCPC 0x06 /* SUN */
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#define MT_ISAR 0x07 /* SUN */
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#define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */
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#define MT_ISCY 0x09 /* CCI Cipher */
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#define MT_ISCT 0x0a /* HP 1/4 tape */
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#define MT_ISFHP 0x0b /* HP 7980 1/2 tape */
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#define MT_ISEXABYTE 0x0c /* Exabyte */
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#define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */
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#define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */
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#define MT_ISVIPER1 0x0e /* Archive Viper-150 */
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#define MT_ISPYTHON 0x0f /* Archive Python (DAT) */
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#define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */
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#define MT_ISWANGTEK 0x11 /* WANGTEK 5150ES */
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#define MT_ISCALIPER 0x12 /* Caliper CP150 */
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#define MT_ISWTEK5099 0x13 /* WANGTEK 5099ES */
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#define MT_ISVIPER2525 0x14 /* Archive Viper 2525 */
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#define MT_ISMFOUR 0x11 /* M4 Data 1/2 9track drive */
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#define MT_ISTK50 0x12 /* DEC SCSI TK50 */
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#define MT_ISMT02 0x13 /* Emulex MT02 SCSI tape controller */
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/* mag tape io control commands */
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#define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
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#define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
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#define MTIOCIEOT _IO('m', 3) /* ignore EOT error */
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#define MTIOCEEOT _IO('m', 4) /* enable EOT error */
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/*
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* When more SCSI-3 SSC (streaming device) devices are out there
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* that support the full 32 byte type 2 structure, we'll have to
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* rethink these ioctls to support all the entities they haul into
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* the picture (64 bit blocks, logical file record numbers, etc..).
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*/
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#define MTIOCRDSPOS _IOR('m', 5, u_int32_t) /* get logical blk addr */
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#define MTIOCRDHPOS _IOR('m', 6, u_int32_t) /* get hardware blk addr */
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#define MTIOCSLOCATE _IOW('m', 5, u_int32_t) /* seek to logical blk addr */
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#define MTIOCHLOCATE _IOW('m', 6, u_int32_t) /* seek to hardware blk addr */
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#ifdef _KERNEL
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/*
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* minor device number
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*/
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#define T_UNIT 003 /* unit selection */
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#define T_NOREWIND 004 /* no rewind on close */
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#define T_DENSEL 030 /* density select */
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#define T_800BPI 000 /* select 800 bpi */
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#define T_1600BPI 010 /* select 1600 bpi */
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#define T_6250BPI 020 /* select 6250 bpi */
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#define T_BADBPI 030 /* undefined selection */
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#endif /* _KERNEL */
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#endif /* !_SYS_MTIO_H_ */
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