FreeBSD/Linux Kernel Cross Reference
sys/device/tape_status.h

     /* 
      * Mach Operating System
      * Copyright (c) 1991,1990,1989 Carnegie Mellon University
      * All Rights Reserved.
      * 
      * Permission to use, copy, modify and distribute this software and its
      * documentation is hereby granted, provided that both the copyright
      * notice and this permission notice appear in all copies of the
      * software, derivative works or modified versions, and any portions
     * thereof, and that both notices appear in supporting documentation.
     * 
     * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
     * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     * 
     * Carnegie Mellon requests users of this software to return to
     * 
     *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
     *  School of Computer Science
     *  Carnegie Mellon University
     *  Pittsburgh PA 15213-3890
     * 
     * any improvements or extensions that they make and grant Carnegie Mellon
     * the rights to redistribute these changes.
     */
    /*
     * HISTORY
     * $Log:        tape_status.h,v $
     * Revision 2.7  91/05/14  16:01:44  mrt
     *      Correcting copyright
     * 
     * Revision 2.6  91/05/13  06:02:28  af
     *      Modified tape_status structure to hold more info
     *      either way.  Added flags field to hold special
     *      behavioural properties such as rewind-on-close.
     *      [91/05/12            af]
     * 
     * Revision 2.5  91/03/16  14:43:42  rpd
     *      Fixed ioctl definitions for ANSI C.
     *      [91/02/20            rpd]
     * 
     * Revision 2.4  91/02/05  17:10:21  mrt
     *      Changed to new Mach copyright
     *      [91/01/31  17:30:46  mrt]
     * 
     * Revision 2.3  90/12/05  23:28:29  af
     *      Created.
     * 
     * Revision 2.2  90/12/05  20:42:10  af
     *      Created, from BSD 4.3Reno mtio.h.
     *      [90/11/11            af]
     * 
     */
    /*
     * Copyright (c) 1982, 1986 The Regents of the University of California.
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms are permitted
     * provided that the above copyright notice and this paragraph are
     * duplicated in all such forms and that any documentation,
     * advertising materials, and other materials related to such
     * distribution and use acknowledge that the software was developed
     * by the University of California, Berkeley.  The name of the
     * University may not be used to endorse or promote products derived
     * from this software without specific prior written permission.
     * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
     * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     *
     *      @(#)mtio.h      7.4 (Berkeley) 8/31/88
     */
    
    #ifndef _TAPE_STATUS_H_
    #define _TAPE_STATUS_H_
    
    /*
     * Tape status
     */
    
    struct tape_status {
            unsigned int    mt_type;
            unsigned int    speed;
            unsigned int    density;
            unsigned int    flags;
    #       define TAPE_FLG_REWIND  0x1
    #       define TAPE_FLG_WP      0x2
    };
    #define TAPE_STATUS_COUNT       (sizeof(struct tape_status)/sizeof(int))
    #define TAPE_STATUS             (('m'<<16) + 1)
    
    /*
     * Constants for mt_type.  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 */
   #define MT_ISTMSCP      0x08            /* DEC TMSCP protocol (TU81, TK50) */
   #define MT_ISCY         0x09            /* CCI Cipher */
   #define MT_ISSCSI       0x0a            /* SCSI tape (all brands) */
   
   
   /*
    * Set status parameters
    */
   
   struct tape_params {
           unsigned int    mt_operation;
           unsigned int    mt_repeat_count;
   };
   
   /* 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 MTCACHE         8       /* enable controller cache */
   #define MTNOCACHE       9       /* disable controller cache */
   
   
   /*
    * U*x compatibility
    */
   
   /* 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 */
           unsigned long   mt_fileno;      /* file number of current position */
           unsigned long   mt_blkno;       /* block number of current position */
   /* end not yet implemented */
   };
   
   
   /* mag tape io control commands */
   #define MTIOCTOP        _IOW('m', 1, struct tape_params)/* 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 */
   
   
   #endif  _TAPE_STATUS_H_

Cache object: 7936a7a94c2c7e97d26946b0399d9027