filecore.h revision 1.1.2.2
1 1.1.2.2 thorpej /* $NetBSD: filecore.h,v 1.1.2.2 2002/12/29 19:55:46 thorpej Exp $ */ 2 1.1.2.2 thorpej 3 1.1.2.2 thorpej /*- 4 1.1.2.2 thorpej * Copyright (c) 1998 Andrew McMurry 5 1.1.2.2 thorpej * Copyright (c) 1994 The Regents of the University of California. 6 1.1.2.2 thorpej * All rights reserved. 7 1.1.2.2 thorpej * 8 1.1.2.2 thorpej * Redistribution and use in source and binary forms, with or without 9 1.1.2.2 thorpej * modification, are permitted provided that the following conditions 10 1.1.2.2 thorpej * are met: 11 1.1.2.2 thorpej * 1. Redistributions of source code must retain the above copyright 12 1.1.2.2 thorpej * notice, this list of conditions and the following disclaimer. 13 1.1.2.2 thorpej * 2. Redistributions in binary form must reproduce the above copyright 14 1.1.2.2 thorpej * notice, this list of conditions and the following disclaimer in the 15 1.1.2.2 thorpej * documentation and/or other materials provided with the distribution. 16 1.1.2.2 thorpej * 3. All advertising materials mentioning features or use of this software 17 1.1.2.2 thorpej * must display the following acknowledgement: 18 1.1.2.2 thorpej * This product includes software developed by the University of 19 1.1.2.2 thorpej * California, Berkeley and its contributors. 20 1.1.2.2 thorpej * 4. Neither the name of the University nor the names of its contributors 21 1.1.2.2 thorpej * may be used to endorse or promote products derived from this software 22 1.1.2.2 thorpej * without specific prior written permission. 23 1.1.2.2 thorpej * 24 1.1.2.2 thorpej * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 1.1.2.2 thorpej * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 1.1.2.2 thorpej * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 1.1.2.2 thorpej * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 1.1.2.2 thorpej * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 1.1.2.2 thorpej * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 1.1.2.2 thorpej * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 1.1.2.2 thorpej * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 1.1.2.2 thorpej * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 1.1.2.2 thorpej * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 1.1.2.2 thorpej * SUCH DAMAGE. 35 1.1.2.2 thorpej * 36 1.1.2.2 thorpej * filecore.h 1.0 1998/6/1 37 1.1.2.2 thorpej */ 38 1.1.2.2 thorpej 39 1.1.2.2 thorpej /* 40 1.1.2.2 thorpej * Definitions describing Acorn Filecore file system structure, as well as 41 1.1.2.2 thorpej * the functions necessary to access fields of filecore file system 42 1.1.2.2 thorpej * structures. 43 1.1.2.2 thorpej */ 44 1.1.2.2 thorpej 45 1.1.2.2 thorpej #define FILECORE_BOOTBLOCK_BLKN 6 46 1.1.2.2 thorpej #define FILECORE_BOOTBLOCK_SIZE 0x200 47 1.1.2.2 thorpej #define FILECORE_BB_DISCREC 0x1C0 48 1.1.2.2 thorpej #define FILECORE_DISCREC_SIZE 60 49 1.1.2.2 thorpej #define FILECORE_DIR_SIZE 2048 50 1.1.2.2 thorpej #define FILECORE_DIRENT_SIZE 26 51 1.1.2.2 thorpej #define FILECORE_MAXDIRENTS 77 52 1.1.2.2 thorpej 53 1.1.2.2 thorpej #define FILECORE_ROOTINO 0xFFFFFFFF 54 1.1.2.2 thorpej #define FILECORE_INO_MASK 0x00FFFFFF 55 1.1.2.2 thorpej #define FILECORE_INO_INDEX 24 56 1.1.2.2 thorpej 57 1.1.2.2 thorpej #define FILECORE_ATTR_READ 1 58 1.1.2.2 thorpej #define FILECORE_ATTR_WRITE 2 59 1.1.2.2 thorpej #define FILECORE_ATTR_DIR 8 60 1.1.2.2 thorpej #define FILECORE_ATTR_OREAD 32 61 1.1.2.2 thorpej #define FILECORE_ATTR_OWRITE 64 62 1.1.2.2 thorpej 63 1.1.2.2 thorpej #if 0 64 1.1.2.2 thorpej #define FILECORE_DEBUG 65 1.1.2.2 thorpej #define FILECORE_DEBUG_BR 66 1.1.2.2 thorpej #endif 67 1.1.2.2 thorpej 68 1.1.2.2 thorpej struct filecore_disc_record { 69 1.1.2.2 thorpej unsigned log2secsize:8; /* base 2 log of the sector size */ 70 1.1.2.2 thorpej unsigned secspertrack:8; /* number of sectors per track */ 71 1.1.2.2 thorpej unsigned heads:8; /* number of heads */ 72 1.1.2.2 thorpej unsigned density:8; /* 0: harddisc, else floppy density */ 73 1.1.2.2 thorpej unsigned idlen:8; /* length of fragment id in bits */ 74 1.1.2.2 thorpej unsigned log2bpmb:8; /* base 2 log of the bytes per FAU */ 75 1.1.2.2 thorpej unsigned skew:8; /* track to sector skew */ 76 1.1.2.2 thorpej unsigned bootoption:8; /* *OPT option */ 77 1.1.2.2 thorpej unsigned lowsector:8; /* lowest sector id on a track */ 78 1.1.2.2 thorpej unsigned nzones:8; /* number of zones in the map */ 79 1.1.2.2 thorpej unsigned zone_spare:16; /* number of non-map bits per zone */ 80 1.1.2.2 thorpej unsigned root; /* address of root directory */ 81 1.1.2.2 thorpej unsigned disc_size; /* disc size in bytes (low word) */ 82 1.1.2.2 thorpej unsigned disc_id:16; /* disc cycle id */ 83 1.1.2.2 thorpej char disc_name[10]; /* disc name */ 84 1.1.2.2 thorpej unsigned disc_type; /* disc type */ 85 1.1.2.2 thorpej unsigned disc_size_2; /* disc size in bytes (high word) */ 86 1.1.2.2 thorpej unsigned share_size:8; /* base 2 log sharing granularity */ 87 1.1.2.2 thorpej unsigned big_flag:8; /* 1 if disc > 512Mb */ 88 1.1.2.2 thorpej char reserved[18]; 89 1.1.2.2 thorpej }; 90 1.1.2.2 thorpej 91 1.1.2.2 thorpej struct filecore_direntry { 92 1.1.2.2 thorpej char name[10]; 93 1.1.2.2 thorpej unsigned load:32; 94 1.1.2.2 thorpej unsigned exec:32; 95 1.1.2.2 thorpej unsigned len:32; 96 1.1.2.2 thorpej unsigned addr:24; 97 1.1.2.2 thorpej unsigned attr:8; 98 1.1.2.2 thorpej }; 99 1.1.2.2 thorpej 100 1.1.2.2 thorpej struct filecore_dirhead { 101 1.1.2.2 thorpej unsigned mas_seq:8; 102 1.1.2.2 thorpej unsigned chkname:32; 103 1.1.2.2 thorpej }; 104 1.1.2.2 thorpej 105 1.1.2.2 thorpej struct filecore_dirtail { 106 1.1.2.2 thorpej unsigned lastmark:8; 107 1.1.2.2 thorpej unsigned reserved:16; 108 1.1.2.2 thorpej unsigned parent1:16; 109 1.1.2.2 thorpej unsigned parent2:8; 110 1.1.2.2 thorpej char title[19]; 111 1.1.2.2 thorpej char name[10]; 112 1.1.2.2 thorpej unsigned mas_seq:8; 113 1.1.2.2 thorpej unsigned chkname:32; 114 1.1.2.2 thorpej unsigned checkbyte:8; 115 1.1.2.2 thorpej }; 116 1.1.2.2 thorpej 117 1.1.2.2 thorpej #define fcdirhead(dp) ((struct filecore_dirhead *)(dp)) 118 1.1.2.2 thorpej #define fcdirentry(dp,n) (((struct filecore_direntry *)(((char *)(dp))+5))+(n)) 119 1.1.2.2 thorpej #define fcdirtail(dp) ((struct filecore_dirtail *)(((char *)(dp))+2007)) 120
Indexes created Fri Oct 03 02:09:57 GMT 2025