FATFileSystem.h

00001 /* mbed Microcontroller Library - FATFileSystem
00002  * Copyright (c) 2008, sford
00003  */
00004 
00005 /* Library: FATFileSystem.h
00006  * A library of stuff to make a fat filesystem on top of a block device
00007  */
00008 
00009 #ifndef MBED_FATFILESYSTEM_H
00010 #define MBED_FATFILESYSTEM_H
00011 
00012 #ifndef FFSDEBUG_ENABLED
00013 #define FFSDEBUG_ENABLED 0
00014 #endif
00015 
00016 #if FFSDEBUG_ENABLED
00017 #define FFSDEBUG(FMT, ...) printf(FMT, ##__VA_ARGS__)
00018 #else
00019 #define FFSDEBUG(FMT, ...)
00020 #endif
00021 
00022 #include "FileSystemLike.h"
00023 #include "FileHandle.h"
00024 #include "ff.h"
00025 #include "diskio.h"
00026 
00027 namespace mbed {
00028 /** FATFileSystem
00029   * The class itself
00030   */
00031 class FATFileSystem : public FileSystemLike {
00032 public:
00033 
00034     FATFileSystem(const char* n);
00035     virtual ~FATFileSystem();
00036     
00037     /** open
00038       * open a file on the filesystem. never called directly
00039       */
00040     virtual FileHandle *open(const char* name, int flags);
00041     virtual int remove(const char *filename);
00042     virtual int format();
00043         virtual DirHandle *opendir(const char *name);
00044         virtual int mkdir(const char *name, mode_t mode);
00045     
00046     FATFS _fs;                                // Work area (file system object) for logical drive    
00047     static FATFileSystem *_ffs[_DRIVES];    // FATFileSystem objects, as parallel to FatFs drives array
00048     int _fsid;
00049     
00050     virtual int disk_initialize() { return 0; }
00051     virtual int disk_status() { return 0; }
00052     virtual int disk_read(char *buffer, int sector) = 0;
00053     virtual int disk_write(const char *buffer, int sector) = 0;
00054     virtual int disk_sync() { return 0; }
00055     virtual int disk_sectors() = 0;
00056      
00057 };
00058     
00059 }
00060 
00061 #endif