/*- * $Id: han.h,v 1.56 1996/12/22 00:22:33 Rhialto Rel $ * * $Log: han.h,v $ * Revision 1.56 1996/12/22 00:22:33 Rhialto * Cosmetics. * * Revision 1.55 1993/12/30 23:28:00 Rhialto * Freeze for MAXON5. * Add compile time options LONGNAMES and CREATIONDATE_ONLY. * Move lowcyl from Disk to Partition. * * Revision 1.54 1993/06/24 05:12:49 Rhialto * DICE 2.07.54R. * * Revision 1.53 92/10/25 02:44:29 Rhialto * Add PrivateInfo. #define magic cookie. * * Revision 1.52 92/09/06 00:06:08 Rhialto * Add cast to *_EOFs. * * Revision 1.51 92/04/17 15:39:01 Rhialto * Freeze for MAXON3. * * Revision 1.46 91/10/06 18:26:52 Rhialto * * Freeze for MAXON * * Revision 1.43 91/09/28 01:50:02 Rhialto * Byteswap routines no longer __stkargs. * * Revision 1.42 91/06/14 00:09:19 Rhialto * DICE conversion * * Revision 1.40 91/03/03 17:55:38 Rhialto * Freeze for MAXON * * Revision 1.35 91/03/03 17:43:39 Rhialto * Cache list is now two lists: LRU and sorted by sector. * * Revision 1.31 90/11/10 02:50:47 Rhialto * Patch 3a. Introduce disk volume date. * * Revision 1.30 90/06/04 23:18:28 Rhialto * Release 1 Patch 3 * * The header file for the MESSYDOS: file system handler * * This code is (C) Copyright 1989 by Olaf Seibert. All rights reserved. May * not be used or copied without a licence. -*/ #define SysBase_DECLARED #include "dev.h" #ifndef CLIB_EXEC_PROTOS_H #include #endif #ifndef CLIB_ALIB_PROTOS_H #include #endif extern struct ExecBase *SysBase; /*----- Configuration section -----*/ #define CONVERSIONS 1 #define NONCOMM 0 #define READONLY 0 #define INPUTDEV 1 #define CREATIONDATE_ONLY 1 #define TASKWAIT 1 /*----- End configuration section -----*/ #define MODE_CREATEFILE (1L<<31) #define FILE_DIR 2 #define FILE_FILE -3 #define MS_SPC 2 /* Sectors per cluster */ #define MS_RES 1 /* Reserved sectors (boot block) */ #define MS_NFATS 2 /* Number of FATs */ #define MS_NDIRS 112 /* Number of directory entries */ #define MS_NSECTS 1440 /* total number of sectors */ #define MS_SPF 3 /* Sectors per FAT */ #define MS_ROOTDIR (MS_RES + MS_SPF * MS_NFATS) #define MS_DIRENTSIZE sizeof(struct MsDirEntry) /* size of a directory entry */ #define MS_FIRSTCLUST 2 /* Very strange convention... */ #define FAT_EOF 0xFFFF /* end of file FAT entry */ #define FAT_UNUSED 0 /* unused block */ #define SEC_EOF ((word)-1) /* end of FAT chain */ #define ROOT_SEC ((word)-1) /* where the root directory 'is' */ #define DIR_DELETED 0xE5 #define DIR_DELETED_MASK 0x80 #if LONGNAMES struct MsDirEntry { word msd_Time; word msd_Date; word msd_Cluster; ulong msd_Filesize; byte msd_Attributes; byte msd_Name[21]; /* Note: odd aligned */ }; #define L_8 21 #define L_3 0 #define OtherEndianMsd(e) #define msd_CreationTime(e) (*(word *)(&(e).msd_Name[17])) #define msd_CreationDate(e) (*(word *)(&(e).msd_Name[19])) #else /* * This structure has its byte order wrong, when it is on the disk. */ struct MsDirEntry { byte msd_Name[8]; byte msd_Ext[3]; byte msd_Attributes; word msd_CreationTime; /* vollabel only */ word msd_CreationDate; /* vollabel only */ byte msd_Pad1[6]; word msd_Time; word msd_Date; word msd_Cluster; ulong msd_Filesize; }; #define L_8 8 #define L_3 3 void OtherEndianMsd(struct MsDirEntry *msd); #define msd_CreationTime(e) ((e).msd_CreationTime) #define msd_CreationDate(e) ((e).msd_CreationDate) #endif #define ATTR_READONLY 0x01 #define ATTR_HIDDEN 0x02 #define ATTR_SYSTEM 0x04 #define ATTR_VOLUMELABEL 0x08 #define ATTR_DIRECTORY 0x10 #define ATTR_ARCHIVED 0x20 #define ATTR_DIR (ATTR_DIRECTORY | ATTR_VOLUMELABEL) #define DATE_MIN 0x21 struct DirEntry { struct MsDirEntry de_Msd; word de_Sector; word de_Offset; }; struct DiskParam { word bps; /* bytes per sector */ word spc; /* byte: sectors per cluster */ word res; /* reserved sectors (boot block) */ word nfats; /* byte: number of fats */ word ndirs; /* number of directory entries */ word nsects; /* total number of sectors on disk */ word media; /* byte: media byte */ word spf; /* sectors per fat */ word spt; /* sectors per track */ word nsides; /* # sides */ word nhid; /* Number of hidden sectors */ /* derived parameters */ word start; /* sector of cluster 0 */ word maxclst; /* highest cluster number */ word rootdir; /* first sector of root dir */ word ndirsects; /* # of root directory sectors */ word datablock; /* first block available for files &c */ word bpc; /* bytes per cluster */ word freeclusts; /* amount of free space */ struct DirEntry vollabel; /* copy of volume label */ word fat16bits; /* Is the FAT 16 bits/entry? */ }; #define CHECK_BOOTJMP 0x01 /* accept disk only with JMP or 00 */ #define CHECK_SANITY 0x02 /* check Bios Parameter Block */ #define CHECK_SAN_DEFAULT 0x04 /* use default values when bpb not ok */ #define CHECK_USE_DEFAULT 0x08 /* always use default values */ struct Partition { long offset; /* offset to sector 0 in bytes */ int spt_dd; /* normal #sectors/track */ int spt_hd; /* #s/t for HD floppies */ }; #define NICE_TO_DFx (1L<<16)/* flag bit in de_Interleave */ #define PROMISE_NOT_TO_DIE (1L<<17)/* flag bit in de_Interleave */ #define MSH_MAGIC 'Msh\0' /* Magic word in DosPackets */ /* * A pointer to an MSFileLock is put into the fl_Key field of a DOS * FileLock structure. We share the MSFileLock with all FileLocks on the * same file. This way, you can compare FileLocks based on their fl_Key * and fl_Task fields, as seems to be done sometimes. Also, a pointer to * an MSFileLock is put in MSFileHandles. * * For ease, we keep a copy of the directory entry in core, WITH THE BYTE * ORDER CORRECTED FOR THIS PROCESSOR. */ struct MSFileLock { struct MinNode msfl_Node; short msfl_Refcount; /* -1: exclusive, >0: # of shared * locks */ struct MSFileLock *msfl_Parent; /* Pointer to parent directory */ struct MsDirEntry msfl_Msd; /* Copy of directory entry */ word msfl_DirSector; /* Location of directory entry */ word msfl_DirOffset; word msfl_Flags; }; #define MSFL_DIRTY 0x01 /* Only used in MSWrite */ /* * A pointer to an MSFileHandle is put into the fh_Arg1 field of a DOS * FileHandle. We get that value with many DOS packets that manipulate the * contents of a file. */ struct MSFileHandle { struct MSFileLock *msfh_FileLock; long msfh_SeekPos; word msfh_Cluster; #if CONVERSIONS int msfh_Conversion; #endif }; /* * Return values of CompareNames. */ #define CMP_NOT_EQUAL 0 /* Names do not match at all */ #define CMP_OK_DIR 1 /* Name matches with a subdir entry */ #define CMP_OK_FILE 2 /* Name matches with a file entry */ #define CMP_INVALID 3 /* First part of name matches with a file * entry, or other invalid component name */ #define CMP_FREE_SLOT 5 #define CMP_END_OF_DIR 6 struct LockList { struct MinList ll_List; void *ll_Cookie; /* we don't want to know what this is! */ }; struct CacheSec { struct MinNode sec_NumberNode; struct MinNode sec_LRUNode; word sec_Number; word sec_Refcount; byte sec_Data[2];/* Really Disk.bps */ }; #define SEC_DIRTY 0x8000 /* Bit in sec_Refcount */ struct Cache { struct MinList LRUList; struct MinList NumberList; }; #define OFFSETOF(tag, member) ((long)(&((struct tag *)0)->member)) struct PrivateInfo { short Revision; short Size; char *RCSId; short *CheckBootBlock; short *DefaultConversion; struct IOExtTD **DiskIOReq; #if CONVERSIONS short NumConversions; struct { unsigned char **to, **from; } Table[2]; #endif }; #define PRIVATE_REVISION 2 #ifndef Prototype #define Prototype extern #endif #ifndef Local #define Local static #endif #include "hanproto.h"