USBMSD example using a file system located in RAM

Fork of RAM_DISK by Samuel Mokrani

USBMSD_Ram.h

Committer:
samux
Date:
2013-05-16
Revision:
1:3d0c421fe52b
Parent:
0:ba333853266b
Child:
2:2c92946b6568

File content as of revision 1:3d0c421fe52b:

/* mbed USBMSD_Ram Library
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#ifndef USBMSD_RAM_H
#define USBMSD_RAM_H

#include "mbed.h"
#include "USBMSD.h"

#define NB_SECTORS (20)

/** Use the SDcard as mass storage device using the USBMSD class
 *
 * @code
 * #include "mbed.h"
 * #include "USBMSD_Ram.h"
 *
 * USBMSD_Ram sd(p5, p6, p7, p8);
 *
 * int main() {
 *   while(1);
 * }
 *
 * @endcode
 */
class USBMSD_Ram : public USBMSD {
public:

   
    USBMSD_Ram();
    virtual int disk_initialize();
    virtual int disk_write(const uint8_t * data, uint64_t block);
    virtual int disk_read(uint8_t * data, uint64_t block);    
    virtual int disk_status();
    virtual int disk_sync();
    virtual uint64_t disk_sectors();
    virtual uint64_t disk_size();
    
protected:
    int _status;
    char disk_image[512*NB_SECTORS];

};

#endif