157 lines
5.3 KiB
C
157 lines
5.3 KiB
C
/* @(#)rmtio.h 1.5 03/06/15 Copyright 1995,2000 J. Schilling */
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/*
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* Definition for enhanced remote tape IO
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*
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* Copyright (c) 1995,2000-2002 J. Schilling
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; see the file COPYING. If not, write to the Free Software
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* Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _RMTIO_H
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#define _RMTIO_H
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#ifndef _MCONFIG_H
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#include <mconfig.h>
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#endif
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#ifndef _UTYPES_H
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#include <utypes.h>
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#endif
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/*
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* values for mt_op
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*/
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#define RMTWEOF 0 /* write an end-of-file record */
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#define RMTFSF 1 /* forward space over file mark */
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#define RMTBSF 2 /* backward space over file mark (1/2" only ) */
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#define RMTFSR 3 /* forward space to inter-record gap */
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#define RMTBSR 4 /* backward space to inter-record gap */
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#define RMTREW 5 /* rewind */
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#define RMTOFFL 6 /* rewind and put the drive offline */
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#define RMTNOP 7 /* no operation, sets status only */
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#ifdef __needed__
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#define MTRETEN 8 /* retension the tape (cartridge tape only) */
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#define MTERASE 9 /* erase the entire tape */
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#define MTEOM 10 /* position to end of media */
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#define MTNBSF 11 /* backward space file to BOF */
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#define MTSRSZ 12 /* set record size */
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#define MTGRSZ 13 /* get record size */
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#define MTLOAD 14 /* for loading a tape (use o_delay to open */
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/* the tape device) */
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#endif
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/*
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* Definitions for the new RMT Protocol version 1
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*
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* The new Protocol version tries to make the use
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* of rmtioctl() more portable between different platforms.
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*/
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#define RMTIVERSION -1 /* Opcode to request version */
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#define RMT_NOVERSION -1 /* Old version code */
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#define RMT_VERSION 1 /* New (current) version code */
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/*
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* Support for commands bejond MTWEOF..MTNOP (0..7)
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*/
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#define RMTICACHE 0 /* enable controller cache */
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#define RMTINOCACHE 1 /* disable controller cache */
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#define RMTIRETEN 2 /* retension the tape (cartridge tape only) */
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#define RMTIERASE 3 /* erase the entire tape */
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#define RMTIEOM 4 /* position to end of media */
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#define RMTINBSF 5 /* backward space file to BOF */
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/*
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* Old MTIOCGET copies a binary version of struct mtget back
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* over the wire. This is highly non portable.
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* MTS_* retrieves ascii versions (%d format) of a single
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* field in the struct mtget.
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* NOTE: MTS_ERREG may only be valid on the first call and
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* must be retrived first.
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*/
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#define MTS_TYPE 'T' /* mtget.mt_type */
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#define MTS_DSREG 'D' /* mtget.mt_dsreg */
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#define MTS_ERREG 'E' /* mtget.mt_erreg */
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#define MTS_RESID 'R' /* mtget.mt_resid */
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#define MTS_FILENO 'F' /* mtget.mt_fileno */
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#define MTS_BLKNO 'B' /* mtget.mt_blkno */
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#define MTS_FLAGS 'f' /* mtget.mt_flags */
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#define MTS_BF 'b' /* mtget.mt_bf */
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/*
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* structure for remote MTIOCGET - mag tape get status command
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*/
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struct rmtget {
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Llong mt_type; /* type of magtape device */
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/* the following two registers are grossly device dependent */
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Llong mt_dsreg; /* ``drive status'' register */
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Int32_t mt_dsreg1; /* ``drive status'' register */
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Int32_t mt_dsreg2; /* ``drive status'' register */
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Llong mt_gstat; /* ``generic status'' register */
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Llong mt_erreg; /* ``error'' register */
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/* optional error info. */
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Llong mt_resid; /* residual count */
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Llong mt_fileno; /* file number of current position */
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Llong mt_blkno; /* block number of current position */
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Llong mt_flags;
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Llong mt_gflags; /* generic flags */
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long mt_bf; /* optimum blocking factor */
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int mt_xflags; /* eXistence flags for struct members */
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};
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/*
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* Values for mt_xflags
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*/
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#define RMT_TYPE 0x0001 /* mt_type/mt_model present */
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#define RMT_DSREG 0x0002 /* mt_dsreg present */
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#define RMT_DSREG1 0x0004 /* mt_dsreg1 present */
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#define RMT_DSREG2 0x0008 /* mt_dsreg2 present */
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#define RMT_GSTAT 0x0010 /* mt_gstat present */
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#define RMT_ERREG 0x0020 /* mt_erreg present */
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#define RMT_RESID 0x0040 /* mt_resid present */
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#define RMT_FILENO 0x0080 /* mt_fileno present */
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#define RMT_BLKNO 0x0100 /* mt_blkno present */
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#define RMT_FLAGS 0x0200 /* mt_flags present */
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#define RMT_BF 0x0400 /* mt_bf present */
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#define RMT_COMPAT 0x0800 /* Created from old compat data */
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/*
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* values for mt_flags
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*/
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#define RMTF_SCSI 0x01
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#define RMTF_REEL 0x02
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#define RMTF_ASF 0x04
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#define RMTF_TAPE_HEAD_DIRTY 0x08
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#define RMTF_TAPE_CLN_SUPPORTED 0x10
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/*
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* these are recommended
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*/
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#ifdef __needed__
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#define MT_ISQIC 0x32 /* generic QIC tape drive */
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#define MT_ISREEL 0x33 /* generic reel tape drive */
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#define MT_ISDAT 0x34 /* generic DAT tape drive */
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#define MT_IS8MM 0x35 /* generic 8mm tape drive */
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#define MT_ISOTHER 0x36 /* generic other type of tape drive */
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/* more Sun devices */
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#define MT_ISTAND25G 0x37 /* sun: SCSI Tandberg 2.5 Gig QIC */
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#define MT_ISDLT 0x38 /* sun: SCSI DLT tape drive */
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#define MT_ISSTK9840 0x39 /* sun: STK 9840 (Ironsides) */
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#endif
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#endif /* _RMTIO_H */
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