94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
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/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifdef ARDUINO_ARCH_ESP32
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#include "../../inc/MarlinConfig.h"
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#if ENABLED(EEPROM_SETTINGS) && DISABLED(FLASH_EEPROM_EMULATION)
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#include "../shared/persistent_store_api.h"
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#include "SPIFFS.h"
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#include "FS.h"
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#include "spiffs.h"
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#define HAL_ESP32_EEPROM_SIZE 4096
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File eeprom_file;
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bool PersistentStore::access_start() {
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if (spiffs_initialized) {
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eeprom_file = SPIFFS.open("/eeprom.dat", "r+");
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size_t file_size = eeprom_file.size();
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if (file_size < HAL_ESP32_EEPROM_SIZE) {
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bool write_ok = eeprom_file.seek(file_size);
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while (write_ok && file_size < HAL_ESP32_EEPROM_SIZE) {
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write_ok = eeprom_file.write(0xFF) == 1;
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file_size++;
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}
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}
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return true;
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}
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return false;
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}
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bool PersistentStore::access_finish() {
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eeprom_file.close();
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return true;
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}
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bool PersistentStore::write_data(int &pos, const uint8_t *value, size_t size, uint16_t *crc) {
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if (!eeprom_file.seek(pos)) return true; // return true for any error
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if (eeprom_file.write(value, size) != size) return true;
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crc16(crc, value, size);
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pos += size;
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return false;
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}
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bool PersistentStore::read_data(int &pos, uint8_t* value, size_t size, uint16_t *crc, const bool writing/*=true*/) {
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if (!eeprom_file.seek(pos)) return true; // return true for any error
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if (writing) {
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if (eeprom_file.read(value, size) != size) return true;
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crc16(crc, value, size);
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}
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else {
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uint8_t tmp[size];
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if (eeprom_file.read(tmp, size) != size) return true;
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crc16(crc, tmp, size);
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}
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pos += size;
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return false;
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}
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size_t PersistentStore::capacity() { return HAL_ESP32_EEPROM_SIZE; }
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#endif // EEPROM_SETTINGS
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#endif // ARDUINO_ARCH_ESP32
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