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Annotation of OSKit-Mach/include/device/tape_status.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1991,1990,1989 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  *
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  *
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  *
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  *
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  *
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  * Copyright (c) 1982, 1986 The Regents of the University of California.
        !            28:  * All rights reserved.
        !            29:  *
        !            30:  * Redistribution and use in source and binary forms, with or without
        !            31:  * modification, are permitted provided that the following conditions
        !            32:  * are met:
        !            33:  * 1. Redistributions of source code must retain the above copyright
        !            34:  *    notice, this list of conditions and the following disclaimer.
        !            35:  * 2. Redistributions in binary form must reproduce the above copyright
        !            36:  *    notice, this list of conditions and the following disclaimer in the
        !            37:  *    documentation and/or other materials provided with the distribution.
        !            38:  * 4. The name of the Laboratory may not be used to endorse or promote
        !            39:  *    products derived from this software without specific prior written
        !            40:  *    permission.
        !            41:  *
        !            42:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            43:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            44:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            45:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            46:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            47:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            48:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            49:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            50:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            51:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            52:  * SUCH DAMAGE.
        !            53:  *
        !            54:  *     @(#)mtio.h      7.4 (Berkeley) 8/31/88
        !            55:  */
        !            56: 
        !            57: #ifndef        _TAPE_STATUS_H_
        !            58: #define        _TAPE_STATUS_H_
        !            59: 
        !            60: /*
        !            61:  * Tape status
        !            62:  */
        !            63: 
        !            64: struct tape_status {
        !            65:        unsigned int    mt_type;
        !            66:        unsigned int    speed;
        !            67:        unsigned int    density;
        !            68:        unsigned int    flags;
        !            69: #      define TAPE_FLG_REWIND  0x1
        !            70: #      define TAPE_FLG_WP      0x2
        !            71: };
        !            72: #define        TAPE_STATUS_COUNT       (sizeof(struct tape_status)/sizeof(int))
        !            73: #define        TAPE_STATUS             (('m'<<16) + 1)
        !            74: 
        !            75: /*
        !            76:  * Constants for mt_type.  These are the same
        !            77:  * for controllers compatible with the types listed.
        !            78:  */
        !            79: #define        MT_ISTS         0x01            /* TS-11 */
        !            80: #define        MT_ISHT         0x02            /* TM03 Massbus: TE16, TU45, TU77 */
        !            81: #define        MT_ISTM         0x03            /* TM11/TE10 Unibus */
        !            82: #define        MT_ISMT         0x04            /* TM78/TU78 Massbus */
        !            83: #define        MT_ISUT         0x05            /* SI TU-45 emulation on Unibus */
        !            84: #define        MT_ISCPC        0x06            /* SUN */
        !            85: #define        MT_ISAR         0x07            /* SUN */
        !            86: #define        MT_ISTMSCP      0x08            /* DEC TMSCP protocol (TU81, TK50) */
        !            87: #define        MT_ISCY         0x09            /* CCI Cipher */
        !            88: #define        MT_ISSCSI       0x0a            /* SCSI tape (all brands) */
        !            89: 
        !            90: 
        !            91: /*
        !            92:  * Set status parameters
        !            93:  */
        !            94: 
        !            95: struct tape_params {
        !            96:        unsigned int    mt_operation;
        !            97:        unsigned int    mt_repeat_count;
        !            98: };
        !            99: 
        !           100: /* operations */
        !           101: #define MTWEOF         0       /* write an end-of-file record */
        !           102: #define MTFSF          1       /* forward space file */
        !           103: #define MTBSF          2       /* backward space file */
        !           104: #define MTFSR          3       /* forward space record */
        !           105: #define MTBSR          4       /* backward space record */
        !           106: #define MTREW          5       /* rewind */
        !           107: #define MTOFFL         6       /* rewind and put the drive offline */
        !           108: #define MTNOP          7       /* no operation, sets status only */
        !           109: #define MTCACHE                8       /* enable controller cache */
        !           110: #define MTNOCACHE      9       /* disable controller cache */
        !           111: 
        !           112: 
        !           113: /*
        !           114:  * U*x compatibility
        !           115:  */
        !           116: 
        !           117: /* structure for MTIOCGET - mag tape get status command */
        !           118: 
        !           119: struct mtget {
        !           120:        short   mt_type;        /* type of magtape device */
        !           121: /* the following two registers are grossly device dependent */
        !           122:        short   mt_dsreg;       /* ``drive status'' register */
        !           123:        short   mt_erreg;       /* ``error'' register */
        !           124: /* end device-dependent registers */
        !           125:        short   mt_resid;       /* residual count */
        !           126: /* the following two are not yet implemented */
        !           127:        unsigned long   mt_fileno;      /* file number of current position */
        !           128:        unsigned long   mt_blkno;       /* block number of current position */
        !           129: /* end not yet implemented */
        !           130: };
        !           131: 
        !           132: 
        !           133: /* mag tape io control commands */
        !           134: #define        MTIOCTOP        _IOW('m', 1, struct tape_params)/* do a mag tape op */
        !           135: #define        MTIOCGET        _IOR('m', 2, struct mtget)      /* get tape status */
        !           136: #define MTIOCIEOT      _IO('m', 3)                     /* ignore EOT error */
        !           137: #define MTIOCEEOT      _IO('m', 4)                     /* enable EOT error */
        !           138: 
        !           139: 
        !           140: #endif _TAPE_STATUS_H_

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