User | Revision | Line number | New contents of line |
lynxeyed_atsu |
0:63ed631d8c3a
|
1
|
/* mbed SDFileSystem Library, for providing file access to SD cards
|
lynxeyed_atsu |
0:63ed631d8c3a
|
2
|
* Copyright (c) 2008-2010, sford
|
lynxeyed_atsu |
0:63ed631d8c3a
|
3
|
*
|
lynxeyed_atsu |
0:63ed631d8c3a
|
4
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
lynxeyed_atsu |
0:63ed631d8c3a
|
5
|
* of this software and associated documentation files (the "Software"), to deal
|
lynxeyed_atsu |
0:63ed631d8c3a
|
6
|
* in the Software without restriction, including without limitation the rights
|
lynxeyed_atsu |
0:63ed631d8c3a
|
7
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
lynxeyed_atsu |
0:63ed631d8c3a
|
8
|
* copies of the Software, and to permit persons to whom the Software is
|
lynxeyed_atsu |
0:63ed631d8c3a
|
9
|
* furnished to do so, subject to the following conditions:
|
lynxeyed_atsu |
0:63ed631d8c3a
|
10
|
*
|
lynxeyed_atsu |
0:63ed631d8c3a
|
11
|
* The above copyright notice and this permission notice shall be included in
|
lynxeyed_atsu |
0:63ed631d8c3a
|
12
|
* all copies or substantial portions of the Software.
|
lynxeyed_atsu |
0:63ed631d8c3a
|
13
|
*
|
lynxeyed_atsu |
0:63ed631d8c3a
|
14
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
lynxeyed_atsu |
0:63ed631d8c3a
|
15
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
lynxeyed_atsu |
0:63ed631d8c3a
|
16
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
lynxeyed_atsu |
0:63ed631d8c3a
|
17
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
lynxeyed_atsu |
0:63ed631d8c3a
|
18
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
lynxeyed_atsu |
0:63ed631d8c3a
|
19
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
lynxeyed_atsu |
0:63ed631d8c3a
|
20
|
* THE SOFTWARE.
|
lynxeyed_atsu |
0:63ed631d8c3a
|
21
|
*/
|
lynxeyed_atsu |
0:63ed631d8c3a
|
22
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
23
|
#ifndef MBED_SDHCFILESYSTEM_H
|
lynxeyed_atsu |
0:63ed631d8c3a
|
24
|
#define MBED_SDHCFILESYSTEM_H
|
lynxeyed_atsu |
0:63ed631d8c3a
|
25
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
26
|
#include "mbed.h"
|
lynxeyed_atsu |
0:63ed631d8c3a
|
27
|
#include "FATFileSystem.h"
|
lynxeyed_atsu |
0:63ed631d8c3a
|
28
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
29
|
/* Double Words */
|
lynxeyed_atsu |
0:63ed631d8c3a
|
30
|
typedef unsigned long long uint64_t;
|
lynxeyed_atsu |
0:63ed631d8c3a
|
31
|
typedef long long sint64_t;
|
lynxeyed_atsu |
0:63ed631d8c3a
|
32
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
33
|
/** Access the filesystem on an SD Card using SPI
|
lynxeyed_atsu |
0:63ed631d8c3a
|
34
|
*
|
lynxeyed_atsu |
0:63ed631d8c3a
|
35
|
* @code
|
lynxeyed_atsu |
0:63ed631d8c3a
|
36
|
* #include "mbed.h"
|
lynxeyed_atsu |
0:63ed631d8c3a
|
37
|
* #include "SDFileSystem.h"
|
lynxeyed_atsu |
0:63ed631d8c3a
|
38
|
*
|
lynxeyed_atsu |
0:63ed631d8c3a
|
39
|
* SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
|
lynxeyed_atsu |
0:63ed631d8c3a
|
40
|
*
|
lynxeyed_atsu |
0:63ed631d8c3a
|
41
|
* int main() {
|
lynxeyed_atsu |
0:63ed631d8c3a
|
42
|
* FILE *fp = fopen("/sd/myfile.txt", "w");
|
lynxeyed_atsu |
0:63ed631d8c3a
|
43
|
* fprintf(fp, "Hello World!\n");
|
lynxeyed_atsu |
0:63ed631d8c3a
|
44
|
* fclose(fp);
|
lynxeyed_atsu |
0:63ed631d8c3a
|
45
|
* }
|
lynxeyed_atsu |
0:63ed631d8c3a
|
46
|
*/
|
lynxeyed_atsu |
0:63ed631d8c3a
|
47
|
class SDFileSystem : public FATFileSystem {
|
lynxeyed_atsu |
0:63ed631d8c3a
|
48
|
public:
|
lynxeyed_atsu |
0:63ed631d8c3a
|
49
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
50
|
/** Create the File System for accessing an SD Card using SPI
|
lynxeyed_atsu |
0:63ed631d8c3a
|
51
|
*
|
lynxeyed_atsu |
0:63ed631d8c3a
|
52
|
* @param mosi SPI mosi pin connected to SD Card
|
lynxeyed_atsu |
0:63ed631d8c3a
|
53
|
* @param miso SPI miso pin conencted to SD Card
|
lynxeyed_atsu |
0:63ed631d8c3a
|
54
|
* @param sclk SPI sclk pin connected to SD Card
|
lynxeyed_atsu |
0:63ed631d8c3a
|
55
|
* @param cs DigitalOut pin used as SD Card chip select
|
lynxeyed_atsu |
0:63ed631d8c3a
|
56
|
* @param name The name used to access the virtual filesystem
|
lynxeyed_atsu |
0:63ed631d8c3a
|
57
|
*/
|
lynxeyed_atsu |
0:63ed631d8c3a
|
58
|
SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
|
lynxeyed_atsu |
0:63ed631d8c3a
|
59
|
virtual int disk_initialize();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
60
|
virtual int disk_write(const char *buffer, int block_number);
|
lynxeyed_atsu |
0:63ed631d8c3a
|
61
|
virtual int disk_read(char *buffer, int block_number);
|
lynxeyed_atsu |
0:63ed631d8c3a
|
62
|
virtual int disk_status();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
63
|
virtual int disk_sync();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
64
|
virtual int disk_sectors();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
65
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
66
|
protected:
|
lynxeyed_atsu |
0:63ed631d8c3a
|
67
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
68
|
int _cmd(int cmd, int arg);
|
lynxeyed_atsu |
0:63ed631d8c3a
|
69
|
int _cmdx(int cmd, int arg);
|
lynxeyed_atsu |
0:63ed631d8c3a
|
70
|
int _cmd8();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
71
|
int _cmd58();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
72
|
int initialise_card();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
73
|
int initialise_card_v1();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
74
|
int initialise_card_v2();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
75
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
76
|
int _read(char *buffer, int length);
|
lynxeyed_atsu |
0:63ed631d8c3a
|
77
|
int _write(const char *buffer, int length);
|
lynxeyed_atsu |
0:63ed631d8c3a
|
78
|
int _sd_sectors();
|
lynxeyed_atsu |
0:63ed631d8c3a
|
79
|
int _sectors;
|
lynxeyed_atsu |
0:63ed631d8c3a
|
80
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
81
|
SPI _spi;
|
lynxeyed_atsu |
0:63ed631d8c3a
|
82
|
DigitalOut _cs;
|
lynxeyed_atsu |
0:63ed631d8c3a
|
83
|
int cdv;
|
lynxeyed_atsu |
0:63ed631d8c3a
|
84
|
};
|
lynxeyed_atsu |
0:63ed631d8c3a
|
85
|
|
lynxeyed_atsu |
0:63ed631d8c3a
|
86
|
#endif
|