mh
/
qmk_firmware
mirror of https://github.com/qmk/qmk_firmware/


								// Copyright 2022 Nick Brassel (@tzarc)

								// SPDX-License-Identifier: GPL-2.0-or-later

								#pragma once


								#ifndef __ASSEMBLER__

								#    include <stdlib.h>

								#    include <stdint.h>

								#    include "flash_spi.h"

								#endif


								// Use 1 block -- check the config for the SPI flash to determine how big it is

								#ifndef WEAR_LEVELING_EXTERNAL_FLASH_BLOCK_COUNT

								#    define WEAR_LEVELING_EXTERNAL_FLASH_BLOCK_COUNT 1

								#endif // WEAR_LEVELING_EXTERNAL_FLASH_BLOCK_COUNT


								// Start at the first block of the external flash

								#ifndef WEAR_LEVELING_EXTERNAL_FLASH_BLOCK_OFFSET

								#    define WEAR_LEVELING_EXTERNAL_FLASH_BLOCK_OFFSET 0

								#endif // WEAR_LEVELING_EXTERNAL_FLASH_BLOCK_OFFSET


								// 8-byte writes by default

								#ifndef BACKING_STORE_WRITE_SIZE

								#    define BACKING_STORE_WRITE_SIZE 8

								#endif


								// The space allocated by the block

								#ifndef WEAR_LEVELING_BACKING_SIZE

								#    define WEAR_LEVELING_BACKING_SIZE ((EXTERNAL_FLASH_BLOCK_SIZE) * (WEAR_LEVELING_EXTERNAL_FLASH_BLOCK_COUNT))

								#endif // WEAR_LEVELING_BACKING_SIZE


								// Use half of the backing size for logical EEPROM

								#ifndef WEAR_LEVELING_LOGICAL_SIZE

								#    define WEAR_LEVELING_LOGICAL_SIZE ((WEAR_LEVELING_BACKING_SIZE) / 2)

								#endif // WEAR_LEVELING_LOGICAL_SIZE