ubixfs.h

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

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

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in the documentation and/or other materials provided with the distribution. Neither the name of the UbixOS Project nor the names of its
contributors may be used to endorse or promote products derived from this software without specific prior written permission.

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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 $Id$

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

#ifndef _UBIXFS_H
#define _UBIXFS_H

#include <ubixos/types.h>
#include <sys/device.h>
#include <vfs/file.h>

#define UBIXDISKMAGIC     ((uInt32)0x45) 
#define MAXPARTITIONS     4
#define blockSize         8
#define blockByteSize     blockSize*512

#define EOBC              -1


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

struct ubixDiskLabel {
  uInt32 magicNum; 
  uInt16 numPartitions; 
  struct  drivePartitions {
    uInt32 pSize; 
    uInt32 pOffset; 
    uInt32 pFsSize; 
    uInt32 pBatSize; 
    uInt8  pFsType; 
    uInt8 pFrag; 
    } partitions[MAXPARTITIONS];
  };

struct partitionInformation {
  uInt32 size;                 
  uInt32 startSector;          
  uInt32 blockAllocationTable; 
  uInt32 rootDirectory;        
  };

struct blockAllocationTableEntry {
  long attributes; 
  long realSector; 
  long nextBlock;  
  long reserved;   
  };

struct directoryEntry {
  uInt32  startCluster;   
  uInt32  size;           
  uInt32  creationDate;  
  uInt32  lastModified;  
  uInt32  uid;           
  uInt32  gid;           
  uInt16 attributes;    
  uInt16 permissions;   
  char   fileName[256]; 
};

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; 
  uInt32 batEntries; 
  };

int readFile(char *file);
int writeFileByte(int ch,fileDescriptor *fd,long offset);
int openFileUbixFS(char *file,fileDescriptor *fd);
int mkDirUbixFS(char *dir,fileDescriptor *fd);
int getFreeBlocks(int count,fileDescriptor *fd);

//Good Functions
int enableUbixFS();
void initUbixFS(struct mountPoints *mp);
int readUbixFS(fileDescriptor *fd,char *data,long offset,long size);
int writeUbixFS(fileDescriptor *fd,char *data,long offset,long size);
void syncBat(struct mountPoints *mp);
int freeBlocks(int block,fileDescriptor *fd);
/* Adds a file to a directory. Returns 0 */
int addDirEntry(struct directoryEntry *dir,fileDescriptor *fd);
void ubixFSUnlink(char *path,struct mountPoints *mp);

#endif

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