mystorage.h

00001 /** MyStorage: a StorageInterface class to interface SPI flash memory and USBLocalFilesystem
00002 */
00003 #include "mbed.h"
00004 #include "StorageInterface.h"
00005 #include "W25X40BV.h"
00006 /** MyStorage: a StorageInterface class to interface SPI flash memory and USBLocalFilesystem
00007 It uses W25X40BV library also hints from Sissors/code/S25FL216K_USBFileSystem
00008 - USBLocalFileSystem by va009039/USBLocalFileSystem
00009 - W25X40BV by k4zuki/code/W25X40BV forked from jyam/code/W25X40BV
00010 */
00011 class MyStorage : public StorageInterface {
00012 public:
00013     MyStorage(PinName mosi, PinName miso, PinName sclk, PinName cs);
00014 
00015     /** read 512bytes from memory;
00016     @param data
00017     @param block numbered from 0
00018     */
00019     virtual int storage_read(uint8_t* data, uint32_t block);
00020     /** write 512bytes to memory;
00021     @param data
00022     @param block numbered from 0
00023     */
00024     virtual int storage_write(const uint8_t* data, uint32_t block);
00025     /** returns number of 512byte sectors in storage;
00026     */
00027     virtual uint32_t storage_sectors();
00028     /** returns size of storage in bytes;
00029     */
00030     virtual uint32_t storage_size();
00031 
00032 private:
00033     W25X40BV _flash;
00034     uint64_t _sectors;
00035 };