mystorage.cpp

00001 #include "mbed.h"
00002 #include "mystorage.h"
00003 #include "W25X40BV.h"
00004 
00005 // MyStorage(PinName mosi, PinName miso, PinName sclk, PinName cs);
00006 MyStorage::MyStorage(PinName mosi, PinName miso, PinName sclk, PinName cs) :
00007     _flash(mosi, miso, sclk, cs) {
00008 }
00009 
00010 // virtual int storage_read(uint8_t* data, uint32_t block);
00011 int MyStorage::storage_read(uint8_t *buffer, uint32_t block_number) {
00012     report_read_count++;
00013     
00014     // receive the data
00015 //    _read(buffer, 512);
00016 //    _flash.readStream(uint32_t addr, uint8_t* buf, uint32_t count);
00017     _flash.readStream(256 * ((block_number) * 2), buffer, 512);
00018     return 0;
00019 }
00020 
00021 // virtual int storage_write(const uint8_t* data, uint32_t block);
00022 int MyStorage::storage_write(const uint8_t *buffer, uint32_t block_number) {
00023     report_write_count++;
00024     
00025     // send the data block
00026 //    _write(buffer, 512);
00027 //    writeStream(uint32_t addr, uint8_t* buf, uint32_t count);
00028 //    void pageErase(uint8_t page);
00029 //    _flash.pageErase((block_number) * 2);
00030 //    _flash.pageErase((block_number) * 2 + 1);
00031     _flash.writeStream(512 * (block_number), (uint8_t*)buffer, 256);
00032     _flash.writeStream(512 * (block_number) + 256, (uint8_t*)(buffer + 256), 256);
00033     return 0;
00034 }
00035 
00036 // virtual uint32_t storage_sectors();
00037 uint32_t MyStorage::storage_sectors() { 
00038     report_sectors_count++;
00039     return (256); //256*512
00040 }
00041 
00042 // virtual uint32_t storage_size();
00043 uint32_t MyStorage::storage_size()
00044 {
00045     report_size_count++;
00046     return (256*512); //256*512
00047 }