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FATFileSystem.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2012 ARM Limited 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy 00005 * of this software and associated documentation files (the "Software"), to deal 00006 * in the Software without restriction, including without limitation the rights 00007 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00008 * copies of the Software, and to permit persons to whom the Software is 00009 * furnished to do so, subject to the following conditions: 00010 * 00011 * The above copyright notice and this permission notice shall be included in 00012 * all copies or substantial portions of the Software. 00013 * 00014 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00015 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00016 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00017 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00018 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00019 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 00020 * SOFTWARE. 00021 */ 00022 #ifndef MBED_FATFILESYSTEM_H 00023 #define MBED_FATFILESYSTEM_H 00024 00025 #include "FileSystemLike.h" 00026 #include "FileHandle.h" 00027 #include "ff.h" 00028 #include <stdint.h> 00029 00030 using namespace mbed; 00031 00032 /** 00033 * FATFileSystem based on ChaN's Fat Filesystem library v0.8 00034 */ 00035 class FATFileSystem : public FileSystemLike { 00036 public: 00037 00038 FATFileSystem(const char* n); 00039 virtual ~FATFileSystem(); 00040 00041 static FATFileSystem * _ffs[_VOLUMES]; // FATFileSystem objects, as parallel to FatFs drives array 00042 FATFS _fs; // Work area (file system object) for logical drive 00043 int _fsid; 00044 00045 /** 00046 * Opens a file on the filesystem 00047 */ 00048 virtual FileHandle *open(const char* name, int flags); 00049 00050 /** 00051 * Removes a file path 00052 */ 00053 virtual int remove(const char *filename); 00054 00055 /** 00056 * Renames a file 00057 */ 00058 virtual int rename(const char *oldname, const char *newname); 00059 00060 /** 00061 * Formats a logical drive, FDISK artitioning rule, 512 bytes per cluster 00062 */ 00063 virtual int format(); 00064 00065 /** 00066 * Opens a directory on the filesystem 00067 */ 00068 virtual DirHandle *opendir(const char *name); 00069 00070 /** 00071 * Creates a directory path 00072 */ 00073 virtual int mkdir(const char *name, mode_t mode); 00074 00075 /** 00076 * Mounts the filesystem 00077 */ 00078 virtual int mount(); 00079 00080 /** 00081 * Unmounts the filesystem 00082 */ 00083 virtual int unmount(); 00084 00085 virtual int disk_initialize() { return 0; } 00086 virtual int disk_status() { return 0; } 00087 virtual int disk_read(uint8_t * buffer, uint64_t sector, uint8_t count) = 0; 00088 virtual int disk_write(const uint8_t * buffer, uint64_t sector, uint8_t count) = 0; 00089 virtual int disk_sync() { return 0; } 00090 virtual uint64_t disk_sectors() = 0; 00091 00092 }; 00093 00094 #endif
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