Firmware2/Marlin/src/HAL/ESP32/eeprom.cpp

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/**
* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#ifdef ARDUINO_ARCH_ESP32
#include "../../inc/MarlinConfig.h"
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#if ENABLED(EEPROM_SETTINGS)
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#include "../shared/eeprom_api.h"
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#include <EEPROM.h>
#ifndef MARLIN_EEPROM_SIZE
#define MARLIN_EEPROM_SIZE 0x1000 // 4KB
#endif
size_t PersistentStore::capacity() { return MARLIN_EEPROM_SIZE; }
bool PersistentStore::access_start() { return EEPROM.begin(MARLIN_EEPROM_SIZE); }
bool PersistentStore::access_finish() { EEPROM.end(); return true; }
bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
for (size_t i = 0; i < size; i++) {
EEPROM.write(pos++, value[i]);
crc16(crc, &value[i], 1);
}
return false;
}
bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
for (size_t i = 0; i < size; i++) {
uint8_t c = EEPROM.read(pos++);
if (writing) value[i] = c;
crc16(crc, &c, 1);
}
return false;
}
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#endif // EEPROM_SETTINGS
#endif // ARDUINO_ARCH_ESP32