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Annotation of Gnu-Mach/i386/i386at/disk.h, revision 1.1.1.3

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 1988, 1989 by Intel Corporation, Santa Clara, California.
                     28: 
                     29:                All Rights Reserved
                     30: 
                     31: Permission to use, copy, modify, and distribute this software and
                     32: its documentation for any purpose and without fee is hereby
                     33: granted, provided that the above copyright notice appears in all
                     34: copies and that both the copyright notice and this permission notice
                     35: appear in supporting documentation, and that the name of Intel
                     36: not be used in advertising or publicity pertaining to distribution
                     37: of the software without specific, written prior permission.
                     38: 
                     39: INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE
                     40: INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
                     41: IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR
                     42: CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
                     43: LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT,
                     44: NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
                     45: WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     46: */
                     47: 
                     48: /*
                     49:  * disk.h
                     50:  */
                     51: 
1.1.1.2   root       52: #ifndef _DISK_H_
                     53: #define _DISK_H_
                     54: 
1.1       root       55: #define V_NUMPAR        16              /* maximum number of partitions */
                     56: 
                     57: #define VTOC_SANE       0x600DDEEE      /* Indicates a sane VTOC */
                     58: #define PDLOCATION     29              /* location of VTOC */
                     59: 
                     60: #define        LBLLOC          1               /* label block for xxxbsd */
                     61: 
                     62: struct localpartition  {
                     63:        u_int   p_flag;                 /*permision flags*/
                     64:        long    p_start;                /*physical start sector no of partition*/
                     65:        long    p_size;                 /*# of physical sectors in partition*/
                     66: };
                     67: typedef struct localpartition localpartition_t;
                     68: 
                     69: struct evtoc {
                     70:        u_int   fill0[6];
                     71:        u_int   cyls;                   /*number of cylinders per drive*/
                     72:        u_int   tracks;                 /*number tracks per cylinder*/
                     73:        u_int   sectors;                /*number sectors per track*/
                     74:        u_int   fill1[13];
                     75:        u_int   version;                /*layout version*/
                     76:        u_int   alt_ptr;                /*byte offset of alternates table*/
                     77:        u_short alt_len;                /*byte length of alternates table*/
                     78:        u_int   sanity;                 /*to verify vtoc sanity*/
                     79:        u_int   xcyls;                  /*number of cylinders per drive*/
                     80:        u_int   xtracks;                /*number tracks per cylinder*/
                     81:        u_int   xsectors;               /*number sectors per track*/
                     82:        u_short nparts;                 /*number of partitions*/
                     83:        u_short fill2;                  /*pad for 286 compiler*/
                     84:        char    label[40];
                     85:        struct localpartition part[V_NUMPAR];/*partition headers*/
                     86:        char    fill[512-352];
                     87: };
                     88: 
1.1.1.2   root       89: #endif /* _DISK_H_ */

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