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eeprom.h
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eeprom.h
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// Copyright 2018-2022 QMK
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#if defined(__AVR__) && !defined(EEPROM_DRIVER)
# include <avr/eeprom.h>
#else
# include <stdint.h>
# include <stdlib.h>
uint8_t eeprom_read_byte(const uint8_t *__p);
uint16_t eeprom_read_word(const uint16_t *__p);
uint32_t eeprom_read_dword(const uint32_t *__p);
void eeprom_read_block(void *__dst, const void *__src, size_t __n);
void eeprom_write_byte(uint8_t *__p, uint8_t __value);
void eeprom_write_word(uint16_t *__p, uint16_t __value);
void eeprom_write_dword(uint32_t *__p, uint32_t __value);
void eeprom_write_block(const void *__src, void *__dst, size_t __n);
void eeprom_update_byte(uint8_t *__p, uint8_t __value);
void eeprom_update_word(uint16_t *__p, uint16_t __value);
void eeprom_update_dword(uint32_t *__p, uint32_t __value);
void eeprom_update_block(const void *__src, void *__dst, size_t __n);
#endif
#if defined(EEPROM_CUSTOM)
# ifndef EEPROM_SIZE
# error EEPROM_SIZE has not been defined for custom driver.
# endif
# define TOTAL_EEPROM_BYTE_COUNT (EEPROM_SIZE)
#elif defined(EEPROM_WEAR_LEVELING)
# define TOTAL_EEPROM_BYTE_COUNT (WEAR_LEVELING_LOGICAL_SIZE)
#elif defined(EEPROM_TRANSIENT)
# include "eeprom_transient.h"
# define TOTAL_EEPROM_BYTE_COUNT (TRANSIENT_EEPROM_SIZE)
#elif defined(EEPROM_I2C)
# include "eeprom_i2c.h"
# define TOTAL_EEPROM_BYTE_COUNT (EXTERNAL_EEPROM_BYTE_COUNT)
#elif defined(EEPROM_SPI)
# include "eeprom_spi.h"
# define TOTAL_EEPROM_BYTE_COUNT (EXTERNAL_EEPROM_BYTE_COUNT)
#elif defined(EEPROM_STM32_L0_L1)
# include "eeprom_stm32_L0_L1.h"
# define TOTAL_EEPROM_BYTE_COUNT (STM32_ONBOARD_EEPROM_SIZE)
#elif defined(EEPROM_KINETIS_FLEXRAM)
# include "eeprom_kinetis_flexram.h"
# define TOTAL_EEPROM_BYTE_COUNT (EEPROM_SIZE)
#elif defined(EEPROM_LEGACY_EMULATED_FLASH)
# include "eeprom_legacy_emulated_flash_defs.h"
# define TOTAL_EEPROM_BYTE_COUNT (FEE_DENSITY_BYTES)
#elif defined(EEPROM_SAMD)
# include "eeprom_samd.h"
# define TOTAL_EEPROM_BYTE_COUNT (EEPROM_SIZE)
#elif defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_AT90USB162__) || defined(__AVR_ATtiny85__)
# define TOTAL_EEPROM_BYTE_COUNT 512
#elif defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega32U4__) || defined(__AVR_ATmega328P__) || defined(__AVR_ATmega32A__)
# define TOTAL_EEPROM_BYTE_COUNT 1024
#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__)
# define TOTAL_EEPROM_BYTE_COUNT 2048
#elif defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__)
# define TOTAL_EEPROM_BYTE_COUNT 4096
#elif defined(EEPROM_TEST_HARNESS)
# ifndef LEGACY_FLASH_OPS_MOCKED
// Normal tests
# define TOTAL_EEPROM_BYTE_COUNT 32
# else
// Flash wear-leveling testing
# include "eeprom_legacy_emulated_flash_tests.h"
# define TOTAL_EEPROM_BYTE_COUNT (EEPROM_SIZE)
# endif
#else
# error Unknown EEPROM driver.
#endif