LCOM1920-T02G10

/*        $NetBSD: mtio.h,v 1.24 2015/09/06 06:01:02 dholland 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_

#include <sys/ioccom.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_ */