Firmware2/Marlin/src/HAL/HAL_LPC1768/persistent_store.cpp

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2017-06-17 23:19:42 +02:00
#include "../persistent_store_api.h"
#include "../../../types.h"
#include "../../../language.h"
#include "../../../serial.h"
#include "../../../utility.h"
#include "chanfs/diskio.h"
#include "chanfs/ff.h"
#ifdef TARGET_LPC1768
#if ENABLED(EEPROM_SETTINGS)
namespace HAL {
namespace PersistentStore {
FATFS fat_fs;
FIL eeprom_file;
bool access_start() {
f_mount(&fat_fs, "", 1);
FRESULT res = f_open(&eeprom_file, "eeprom.dat", FA_OPEN_ALWAYS | FA_WRITE | FA_READ);
return (res == FR_OK);
}
bool access_finish(){
f_close(&eeprom_file);
f_unmount("");
return true;
}
bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
UINT bytes_written = 0;
f_lseek(&eeprom_file, pos);
f_write(&eeprom_file, (void *)value, size, &bytes_written);
crc16(crc, value, size);
pos = pos + size;
return (bytes_written == size);
}
void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
UINT bytes_read = 0;
f_lseek(&eeprom_file, pos);
f_read(&eeprom_file, (void *)value, size, &bytes_read);
crc16(crc, value, size);
pos = pos + size;
}
}
}
#endif // EEPROM_SETTINGS
#endif // ARDUINO_ARCH_AVR