Firmware2/Marlin/src/HAL/HAL_AVR/persistent_store_impl.cpp
Roxy-3D 572cf0ec95 UBL able to generate mesh and save and load it on 32-bit platforms (#8015)
* Get UBL Mesh Generation, Mesh Save & Mesh Load working with 32-Bit platforms

* clean up read_data() and write_data() for non-LPC1768 HAL's

* Get read_data() and write_data() return codes consistent

All HAL's read_data() and write_data() return false if they succeed.

* Get read_data() and write_data() return codes to be consistent

Make read_data() and write_data() return true if an error happens.

* Say UBL is now checked out on machine types in default Configuration.h file.
2017-10-18 14:00:29 -05:00

57 lines
1.1 KiB
C++

#ifdef __AVR__
#include "../persistent_store_api.h"
#include "../../inc/MarlinConfig.h"
#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 true;
}
}
crc16(crc, &v, 1);
pos++;
value++;
};
return false;
}
bool 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);
return false; // always assume success for AVR's
}
}
}
#endif // EEPROM_SETTINGS
#endif // __AVR__