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mtio.h
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mtio.h
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/* $NetBSD: mtio.h,v 1.23 2005/12/26 18:41:36 perry Exp $ */
/*
* Copyright (c) 1982, 1986, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)mtio.h 8.1 (Berkeley) 6/2/93
*/
#ifndef _SYS_MTIO_H_
#define _SYS_MTIO_H_
/*
* Structures and definitions for mag tape io control commands
*/
/* structure for MTIOCTOP - mag tape op command */
struct mtop {
short mt_op; /* operations defined below */
int32_t mt_count; /* how many of them */
};
/* operations */
#define MTWEOF 0 /* write an end-of-file record */
#define MTFSF 1 /* forward space file */
#define MTBSF 2 /* backward space file */
#define MTFSR 3 /* forward space record */
#define MTBSR 4 /* backward space record */
#define MTREW 5 /* rewind */
#define MTOFFL 6 /* rewind and put the drive offline */
#define MTNOP 7 /* no operation, sets status only */
#define MTRETEN 8 /* retension */
#define MTERASE 9 /* erase entire tape */
#define MTEOM 10 /* forward to end of media */
#define MTNBSF 11 /* backward space to beginning of file */
#define MTCACHE 12 /* enable controller cache */
#define MTNOCACHE 13 /* disable controller cache */
#define MTSETBSIZ 14 /* set block size; 0 for variable */
#define MTSETDNSTY 15 /* set density code for current mode */
#define MTCMPRESS 16 /* set/clear device compression */
#define MTEWARN 17 /* set/clear early warning behaviour */
/* structure for MTIOCGET - mag tape get status command */
struct mtget {
short mt_type; /* type of magtape device */
/* the following two registers are grossly device dependent */
short mt_dsreg; /* ``drive status'' register */
short mt_erreg; /* ``error'' register */
/* end device-dependent registers */
short mt_resid; /* residual count */
/* the following two are not yet implemented by most tape drivers */
int32_t mt_fileno; /* file number of current position */
int32_t mt_blkno; /* block number of current position */
/* end not yet implemented */
int32_t mt_blksiz; /* current block size */
int32_t mt_density; /* current density code */
int32_t mt_mblksiz[4]; /* block size for different modes */
int32_t mt_mdensity[4]; /* density codes for different modes */
};
/*
* Constants for mt_type byte. These are the same
* for controllers compatible with the types listed.
*/
#define MT_ISTS 0x01 /* TS-11 */
#define MT_ISHT 0x02 /* TM03 Massbus: TE16, TU45, TU77 */
#define MT_ISTM 0x03 /* TM11/TE10 Unibus */
#define MT_ISMT 0x04 /* TM78/TU78 Massbus */
#define MT_ISUT 0x05 /* SI TU-45 emulation on Unibus */
#define MT_ISCPC 0x06 /* SUN */
#define MT_ISAR 0x07 /* SUN - Also "GENERIC SCSI" */
#define MT_ISTMSCP 0x08 /* DEC TMSCP protocol (TU81, TK50) */
#define MT_ISCY 0x09 /* CCI Cipher */
#define MT_ISCT 0x0a /* HP 1/4 tape */
#define MT_ISFHP 0x0b /* HP 7980 1/2 tape */
#define MT_ISEXABYTE 0x0c /* Exabyte */
#define MT_ISEXA8200 0x0c /* Exabyte EXB-8200 */
#define MT_ISEXA8500 0x0d /* Exabyte EXB-8500 */
#define MT_ISVIPER1 0x0e /* Archive Viper-150 */
#define MT_ISPYTHON 0x0f /* Archive Python (DAT) */
#define MT_ISHPDAT 0x10 /* HP 35450A DAT drive */
#define MT_ISWANGTEK 0x11 /* WANGTEK 5150ES */
#define MT_ISCALIPER 0x12 /* Caliper CP150 */
#define MT_ISWTEK5099 0x13 /* WANGTEK 5099ES */
#define MT_ISVIPER2525 0x14 /* Archive Viper 2525 */
#define MT_ISMFOUR 0x11 /* M4 Data 1/2 9track drive */
#define MT_ISTK50 0x12 /* DEC SCSI TK50 */
#define MT_ISMT02 0x13 /* Emulex MT02 SCSI tape controller */
/* bits defined for the mt_dsreg field */
#define MT_DS_RDONLY 0x10 /* tape mounted readonly */
#define MT_DS_MOUNTED 0x03 /* tape mounted (for control opens) */
/*
* For the mt_erreg field.....This is supposed to be a *generic*
* MT interface, so we cannot overload it with SCSI specific entities,
* (like ASC/ASCQ) nor is there enough room to put all the information
* in that is desirable. This whole structure should be redone.
*
* In the interim, this will be considered device-specific. For SCSI,
* this will be taken to mean the last Sense Key seen. It is not
* guaranteed to always be sensibly associated with any command.
*/
/*
* The action of a MTIOCGET command clears mt_dsreg, mt_erreg, and mt_resid
*/
/* mag tape io control commands */
#define MTIOCTOP _IOW('m', 1, struct mtop) /* do a mag tape op */
#define MTIOCGET _IOR('m', 2, struct mtget) /* get tape status */
#define MTIOCIEOT _IO('m', 3) /* ignore EOT error */
#define MTIOCEEOT _IO('m', 4) /* enable EOT error */
/*
* When more SCSI-3 SSC (streaming device) devices are out there
* that support the full 32 byte type 2 structure, we'll have to
* rethink these ioctls to support all the entities they haul into
* the picture (64 bit blocks, logical file record numbers, etc..).
*/
#define MTIOCRDSPOS _IOR('m', 5, uint32_t) /* get logical blk addr */
#define MTIOCRDHPOS _IOR('m', 6, uint32_t) /* get hardware blk addr */
#define MTIOCSLOCATE _IOW('m', 5, uint32_t) /* seek to logical blk addr */
#define MTIOCHLOCATE _IOW('m', 6, uint32_t) /* seek to hardware blk addr */
#ifdef _KERNEL
/*
* minor device number
*/
#define T_UNIT 003 /* unit selection */
#define T_NOREWIND 004 /* no rewind on close */
#define T_DENSEL 030 /* density select */
#define T_800BPI 000 /* select 800 bpi */
#define T_1600BPI 010 /* select 1600 bpi */
#define T_6250BPI 020 /* select 6250 bpi */
#define T_BADBPI 030 /* undefined selection */
#endif /* _KERNEL */
#endif /* !_SYS_MTIO_H_ */