153 lines
6.0 KiB
C
153 lines
6.0 KiB
C
/* $NetBSD: filecore.h,v 1.4 2005/12/03 17:34:43 christos 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];
|
|
} __attribute__((__packed__));
|
|
|
|
struct filecore_direntry {
|
|
char name[10];
|
|
unsigned load:32;
|
|
unsigned exec:32;
|
|
unsigned len:32;
|
|
unsigned addr:24;
|
|
unsigned attr:8;
|
|
} __attribute__((__packed__));
|
|
|
|
struct filecore_dirhead {
|
|
unsigned mas_seq:8;
|
|
unsigned chkname:32;
|
|
} __attribute__((__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;
|
|
} __attribute__((__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))
|