1 /* mbed Microcontroller Library
2  * Copyright (c) 2006-2012 ARM Limited
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to deal
6  * in the Software without restriction, including without limitation the rights
7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8  * copies of the Software, and to permit persons to whom the Software is
9  * furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20  * SOFTWARE.
21  */
22 #ifndef MBED_FATFILESYSTEM_H
23 #define MBED_FATFILESYSTEM_H
24 
25 #include "FileSystemLike.h"
26 #include "FileHandle.h"
27 #include "ff.h"
28 #include <stdint.h>
29 
30 using namespace mbed;
31 
32 /**
33  * FATFileSystem based on ChaN's Fat Filesystem library v0.8
34  */
35 class FATFileSystem : public FileSystemLike {
36 public:
37 
38     FATFileSystem(const char* n);
39     virtual ~FATFileSystem();
40 
41     static FATFileSystem * _ffs[_VOLUMES];   // FATFileSystem objects, as parallel to FatFs drives array
42     FATFS _fs;                               // Work area (file system object) for logical drive
43     int _fsid;
44 
45     /**
46      * Opens a file on the filesystem
47      */
48     virtual FileHandle *open(const char* name, int flags);
49 
50     /**
51      * Removes a file path
52      */
53     virtual int remove(const char *filename);
54 
55     /**
56      * Renames a file
57      */
58     virtual int rename(const char *oldname, const char *newname);
59 
60     /**
61      * Formats a logical drive, FDISK artitioning rule, 512 bytes per cluster
62      */
63     virtual int format();
64 
65     /**
66      * Opens a directory on the filesystem
67      */
68     virtual DirHandle *opendir(const char *name);
69 
70     /**
71      * Creates a directory path
72      */
73     virtual int mkdir(const char *name, mode_t mode);
74 
75     /**
76      * Mounts the filesystem
77      */
78     virtual int mount();
79 
80     /**
81      * Unmounts the filesystem
82      */
83     virtual int unmount();
84 
disk_initialize()85     virtual int disk_initialize() { return 0; }
disk_status()86     virtual int disk_status() { return 0; }
87     virtual int disk_read(uint8_t * buffer, uint64_t sector, uint8_t count) = 0;
88     virtual int disk_write(const uint8_t * buffer, uint64_t sector, uint8_t count) = 0;
disk_sync()89     virtual int disk_sync() { return 0; }
90     virtual uint64_t disk_sectors() = 0;
91 
92 };
93 
94 #endif
95