USBMSD_Ram.h

00001 /* mbed USBMSD_Ram Library, for providing file access to SD cards
00002  * Copyright (c) 2008-2010, sford
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
00020  * THE SOFTWARE.
00021  */
00022 
00023 #ifndef USBMSD_RAM_H
00024 #define USBMSD_RAM_H
00025 
00026 #include "mbed.h"
00027 #include "USBFileSystem.h"
00028 
00029 class USBMSD_Ram : public USBFileSystem {
00030 public:
00031 
00032    
00033     USBMSD_Ram();
00034     virtual int disk_initialize();
00035     virtual int _disk_write(const uint8_t * data, uint64_t block, uint8_t count);
00036     virtual int disk_read(uint8_t * data, uint64_t block, uint8_t count);    
00037     virtual int _disk_status();
00038     virtual int disk_sync();
00039     virtual uint64_t disk_sectors();
00040     
00041 protected:
00042     int _status;
00043     char disk_image[512*16];
00044 
00045 };
00046 
00047 #endif