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- #include "../persistent_store_api.h"
-
- #include "../../../types.h"
- #include "../../../language.h"
- #include "../../../serial.h"
- #include "../../../utility.h"
-
- #ifdef ARDUINO_ARCH_AVR
- #if ENABLED(EEPROM_SETTINGS)
-
- namespace HAL {
- namespace PersistentStore {
-
- bool access_start() {
- return true;
- }
-
- bool access_finish(){
- return true;
- }
-
- bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
- while (size--) {
- uint8_t * const p = (uint8_t * const)pos;
- uint8_t v = *value;
- // EEPROM has only ~100,000 write cycles,
- // so only write bytes that have changed!
- if (v != eeprom_read_byte(p)) {
- eeprom_write_byte(p, v);
- if (eeprom_read_byte(p) != v) {
- SERIAL_ECHO_START();
- SERIAL_ECHOLNPGM(MSG_ERR_EEPROM_WRITE);
- return false;
- }
- }
- crc16(crc, &v, 1);
- pos++;
- value++;
- };
- return true;
- }
-
- void read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
- do {
- uint8_t c = eeprom_read_byte((unsigned char*)pos);
- *value = c;
- crc16(crc, &c, 1);
- pos++;
- value++;
- } while (--size);
- }
-
- }
- }
-
- #endif // EEPROM_SETTINGS
- #endif // ARDUINO_ARCH_AVR
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