ubixfs.h

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/*****************************************************************************************
 Copyright (c) 2002-2004 The UbixOS Project
 All rights reserved.

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 permitted provided that the following conditions are met:

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 conditions, the following disclaimer and the list of authors.  Redistributions in binary
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 disclaimer and the list of authors in the documentation and/or other materials provided
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 contributors may be used to endorse or promote products derived from this software
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 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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 $Id: ubixfs_8h-source.html 88 2016-01-12 00:11:29Z reddawg $

*****************************************************************************************/

#ifndef _UBIXFS_H
#define _UBIXFS_H

#include <ubixos/types.h>
#include <vfs/vfs.h>
#include <sys/device.h>
#include <mpi/mpi.h>
#include <ubixfs/dirCache.h>


#define UBIXFS_BLOCKSIZE_BYTES     blockSize*512
#define UBIXFS_ALIGN(size) (size + ((((size) % (UBIXFS_BLOCKSIZE_BYTES)) == 0)? 0 : ((UBIXFS_BLOCKSIZE_BYTES) - ((size) % (UBIXFS_BLOCKSIZE_BYTES)))))

#define UBIXDISKMAGIC     ((uInt32)0x45) /* The disk magic number */
#define MAXUBIXPARTITIONS 16
#define blockSize         8


#define EOBC              -1


#define typeFile      1
#define typeContainer 2
#define typeDirectory 4
#define typeDeleted   8

/* Start */
struct directoryList {
  char                  dirName[256];
  char                 *dirCache;
  uInt32                dirBlock;
  struct directoryList *next;
  struct directoryList *prev;
  };

typedef struct directoryList * dirList_t;

dirList_t ubixFSLoadDir(char *);
/* End   */

//Partition Information
struct ubixDiskLabel {
  uInt32 magicNum;
  uInt32 magicNum2;
  uInt16 driveType;
  uInt16 numPartitions;
  struct  ubixPartitions {  //the partition table
    uInt32 pSize;            //number of sectors in partition
    uInt32 pOffset;          //starting sector
    uInt32 pFsSize;          //filesystem basic fragment size
    uInt32 pBatSize;         //BAT size
    uInt8 pFsType;          //filesystem type, see below
    uInt8 pFrag;            //filesystem fragments per block
    } partitions[MAXUBIXPARTITIONS];
  };


struct partitionInformation {
  uInt32 size;                 //Size In Sectors
  uInt32 startSector;          //Base Sector Of Partition
  uInt32 blockAllocationTable; //Base Sector Of BAT
  uInt32 rootDirectory;        //Base Sector Of Root Directory
  };

//Block Allocation Table Entry
struct blockAllocationTableEntry {
  long attributes; //Block Attributes
  long realSector; //Real Sector  
  long nextBlock;  //Sector Of Next Block
  long reserved;   //Reserved
  };

//UbixFS Directory Entry
struct directoryEntry {
  uInt32  startCluster;   //Starting Cluster Of File
  uInt32  size;           //Size Of File
  uInt32  creationDate;  //Date Created
  uInt32  lastModified;  //Date Last Modified
  uInt32  uid;           //UID Of Owner
  uInt32  gid;           //GID Of Owner
  uInt16 attributes;    //Files Attributes
  uInt16 permissions;   //Files Permissions
  char   fileName[256]; //File Name
  };

struct bootSect {
  uInt8 jmp[4];
  uInt8 id[6];
  uInt16 version;
  uInt16 tmp;
  uInt16 fsStart;
  uInt16 tmp2;
  uInt32 krnl_start;
  uInt BytesPerSector;
  uInt SectersPerTrack;
  uInt TotalHeads;
  uInt32 TotalSectors;
  uInt8 code[479];
  };  

struct ubixFSInfo {
  struct blockAllocationTableEntry *blockAllocationTable;
  struct cacheNode * dirCache;
  uInt32 batEntries;
  uInt32 rootDir;
}; /* ubixFSInfo */

int readFile(char *file);
int writeFileByte(int ch,fileDescriptor *fd,long offset);
//int openFileUbixFS(char *file,fileDescriptor *fd);
int getFreeBlocks(int count,fileDescriptor *fd);
//extern struct ubixDiskLabel *diskLabel;

//Good Functions
//void initUbixFS(struct mountPoints *mp);

int readUbixFS(fileDescriptor *fd,char *data,uInt32,long size);
int writeUbixFS(fileDescriptor *fd,char *data,long offset,long size);
void syncBat(struct vfs_mountPoint *mp);
int freeBlocks(int block,fileDescriptor *fd);
int addDirEntry(struct directoryEntry *dir,fileDescriptor *fd);
void ubixFSUnlink(char *path,struct vfs_mountPoint *mp);
int ubixFSmkDir(char *dir,fileDescriptor *fd);

int  ubixfs_init();
int  ubixfs_initialize();
void ubixfs_thread();


#endif

/***
 $Log: ubixfs_8h-source.html,v $
 Revision 1.2  2006/12/15 17:47:08  reddawg
 Updates

 Revision 1.2  2006/12/05 14:10:21  reddawg
 Workign Distro

 Revision 1.1.1.1  2006/06/01 12:46:14  reddawg
 ubix2

 Revision 1.2  2005/10/12 00:13:37  reddawg
 Removed

 Revision 1.1.1.1  2005/09/26 17:23:53  reddawg
 no message

 Revision 1.21  2004/09/14 20:57:01  reddawg
 Bug fixes: macro problem over opt a multiply

 Revision 1.20  2004/08/01 17:58:39  flameshadow
 chg: fixed string allocation bug in ubixfs_cacheNew()

 Revision 1.19  2004/07/27 12:02:01  reddawg
 chg: fixed marks bug readFile did a lookup which is why it looked like it was loopping so much

 Revision 1.18  2004/07/23 09:10:06  reddawg
 ubixfs: cleaned up some functions played with the caching a bit
 vfs:    renamed a bunch of functions
 cleaned up a few misc bugs

 Revision 1.17  2004/07/22 22:37:03  reddawg
 Caching is working now the FS is extremely fast but needs to be optimized to do 32bit copies over 8bit

 Revision 1.16  2004/07/20 21:28:16  flameshadow
 oops

 Revision 1.14  2004/07/20 19:36:49  reddawg
 UBU Tags

 Revision 1.13  2004/07/14 12:21:49  reddawg
 ubixfs: enableUbixFs to ubixfs_init
 Changed Startup Routines

 END
 ***/

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