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MarlinFirmware/Marlin/src/HAL/HAL_STM32F1/persistent_store_impl.cpp

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/**
* Marlin 3D Printer Firmware
*
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
* Copyright (c) 2016 Bob Cousins bobcousins42@googlemail.com
* Copyright (c) 2015-2016 Nico Tonnhofer wurstnase.reprap@gmail.com
* Copyright (c) 2016 Victor Perez victor_pv@hotmail.com
*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* HAL for stm32duino.com based on Libmaple and compatible (STM32F1)
*/
#ifdef __STM32F1__
#include "../../inc/MarlinConfig.h"
#if ENABLED(EEPROM_SETTINGS)
#include "../persistent_store_api.h"
//#include "../../core/types.h"
//#include "../../core/language.h"
//#include "../../core/serial.h"
//#include "../../core/utility.h"
#include "../../sd/cardreader.h"
namespace HAL {
namespace PersistentStore {
#define CONFIG_FILE_NAME "eeprom.dat"
#define HAL_STM32F1_EEPROM_SIZE 4096
char HAL_STM32F1_eeprom_content[HAL_STM32F1_EEPROM_SIZE];
bool access_start() {
if (!card.cardOK) return false;
int16_t bytes_read = 0;
const char eeprom_zero = 0xFF;
card.openFile((char *)CONFIG_FILE_NAME,true);
bytes_read = card.read (HAL_STM32F1_eeprom_content, HAL_STM32F1_EEPROM_SIZE);
if (bytes_read == -1) return false;
for (; bytes_read < HAL_STM32F1_EEPROM_SIZE; bytes_read++) {
HAL_STM32F1_eeprom_content[bytes_read] = eeprom_zero;
}
card.closefile();
return true;
}
bool access_finish(){
if (!card.cardOK) return false;
int16_t bytes_written = 0;
card.openFile((char *)CONFIG_FILE_NAME,true);
bytes_written = card.write (HAL_STM32F1_eeprom_content, HAL_STM32F1_EEPROM_SIZE);
card.closefile();
return (bytes_written == HAL_STM32F1_EEPROM_SIZE);
}
bool write_data(int &pos, const uint8_t *value, uint16_t size, uint16_t *crc) {
for (int i = 0; i < size; i++) {
HAL_STM32F1_eeprom_content [pos + i] = value[i];
}
crc16(crc, value, size);
pos += size;
return false;
}
bool read_data(int &pos, uint8_t* value, uint16_t size, uint16_t *crc) {
for (int i = 0; i < size; i++) {
value[i] = HAL_STM32F1_eeprom_content [pos + i];
}
crc16(crc, value, size);
pos += size;
return false;
}
} // PersistentStore::
} // HAL::
#endif // EEPROM_SETTINGS
#endif // __STM32F1__