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_NORFLASHFILESYSTEM_H
23 #define MBED_NORFLASHFILESYSTEM_H
24 
25 #include "mbed.h"
26 #include "FATFileSystem.h"
27 #include <stdint.h>
28 
29 /** Access the filesystem on an NorFlash Card
30  *
31  * @code
32  * #include "mbed.h"
33  * #include "NorFlashFileSystem.h"
34  *
35  * NorFlashFileSystem nf("nf");
36  *
37  * int main() {
38  *     FILE *fp = fopen("/nf/myfile.txt", "w");
39  *     fprintf(fp, "Hello World!\n");
40  *     fclose(fp);
41  * }
42  */
43 class NorFlashFileSystem : public FATFileSystem {
44 public:
45 
46     /** Create the File System for accessing an NorFlash Card
47      *
48      * @param name The name used to access the virtual filesystem
49      */
50     NorFlashFileSystem(const char* name);
51 	virtual ~NorFlashFileSystem();
52     virtual int disk_initialize();
53     virtual int disk_status();
54     virtual int disk_read(uint8_t* buffer, uint64_t block_number, uint8_t count);
55     virtual int disk_write(const uint8_t* buffer, uint64_t block_number, uint8_t count);
56     virtual int disk_sync();
57     virtual uint64_t disk_sectors();
58 
59 protected:
60 
61     uint64_t _nf_sectors();
62     uint64_t _sectors;
63     uint32_t _erase_size;
64 
65     int _is_initialized;
66 };
67 
68 #endif
69