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Wear-leveling EEPROM drivers: embedded_flash, spi_flash, legacy (#17376)

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Nick Brassel 2022-06-30 07:42:23 +10:00 • committed by GitHub
parent 1204cbb7ea
commit 34e244cecf
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15 changed files with 667 additions and 71 deletions
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34
drivers/wear_leveling/wear_leveling_flash_spi_config.h Normal file
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// 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