/* $NetBSD: filecore.h,v 1.5 2007/12/25 18:33:43 perry Exp $ */ /*- * Copyright (c) 1994 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. * * filecore.h 1.0 1998/6/1 */ /*- * Copyright (c) 1998 Andrew McMurry * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. * * filecore.h 1.0 1998/6/1 */ /* * Definitions describing Acorn Filecore file system structure, as well as * the functions necessary to access fields of filecore file system * structures. */ #if !defined(_KERNEL) #error not supposed to be exposed to userland. #endif #define FILECORE_BOOTBLOCK_BLKN 6 #define FILECORE_BOOTBLOCK_SIZE 0x200 #define FILECORE_BB_DISCREC 0x1C0 #define FILECORE_DISCREC_SIZE 60 #define FILECORE_DIR_SIZE 2048 #define FILECORE_DIRENT_SIZE 26 #define FILECORE_MAXDIRENTS 77 #define FILECORE_ROOTINO 0xFFFFFFFF #define FILECORE_INO_MASK 0x00FFFFFF #define FILECORE_INO_INDEX 24 #define FILECORE_ATTR_READ 1 #define FILECORE_ATTR_WRITE 2 #define FILECORE_ATTR_DIR 8 #define FILECORE_ATTR_OREAD 32 #define FILECORE_ATTR_OWRITE 64 #if 0 #define FILECORE_DEBUG #define FILECORE_DEBUG_BR #endif struct filecore_disc_record { unsigned log2secsize:8; /* base 2 log of the sector size */ unsigned secspertrack:8; /* number of sectors per track */ unsigned heads:8; /* number of heads */ unsigned density:8; /* 0: harddisc, else floppy density */ unsigned idlen:8; /* length of fragment id in bits */ unsigned log2bpmb:8; /* base 2 log of the bytes per FAU */ unsigned skew:8; /* track to sector skew */ unsigned bootoption:8; /* *OPT option */ unsigned lowsector:8; /* lowest sector id on a track */ unsigned nzones:8; /* number of zones in the map */ unsigned zone_spare:16; /* number of non-map bits per zone */ unsigned root; /* address of root directory */ unsigned disc_size; /* disc size in bytes (low word) */ unsigned disc_id:16; /* disc cycle id */ char disc_name[10]; /* disc name */ unsigned disc_type; /* disc type */ unsigned disc_size_2; /* disc size in bytes (high word) */ unsigned share_size:8; /* base 2 log sharing granularity */ unsigned big_flag:8; /* 1 if disc > 512Mb */ char reserved[18]; } __packed; struct filecore_direntry { char name[10]; unsigned load:32; unsigned exec:32; unsigned len:32; unsigned addr:24; unsigned attr:8; } __packed; struct filecore_dirhead { unsigned mas_seq:8; unsigned chkname:32; } __packed; struct filecore_dirtail { unsigned lastmark:8; unsigned reserved:16; unsigned parent1:16; unsigned parent2:8; char title[19]; char name[10]; unsigned mas_seq:8; unsigned chkname:32; unsigned checkbyte:8; } __packed; #define fcdirhead(dp) ((struct filecore_dirhead *)(dp)) #define fcdirentry(dp,n) (((struct filecore_direntry *)(((char *)(dp))+5))+(n)) #define fcdirtail(dp) ((struct filecore_dirtail *)(((char *)(dp))+2007))
