78 lines
2.9 KiB
C
78 lines
2.9 KiB
C
/*
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* Copyright (c) 2022, Erich Styger
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "McuLib.h" /* for error codes */
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#include "McuLittleFSBlockDevice.h"
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#include "McuLittleFSconfig.h"
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#include "littleFS/lfs.h"
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/* pre-configured memory devices */
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#if McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_WINBOND_W25Q128
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#include "McuW25Q128.h"
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#elif McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_MCU_FLASH
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#include "McuFlash.h"
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#endif
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int McuLittleFS_block_device_read(const struct lfs_config *c, lfs_block_t block, lfs_off_t off, void *buffer, lfs_size_t size) {
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uint8_t res;
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#if McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_GENERIC
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res = ERR_FAILED; /* NYI */
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#elif McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_WINBOND_W25Q128
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res = McuW25_Read((block+McuLittleFS_CONFIG_BLOCK_OFFSET) * c->block_size + off, buffer, size);
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#elif McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_MCU_FLASH
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res = McuFlash_Read((void*)((block+McuLittleFS_CONFIG_BLOCK_OFFSET) * c->block_size + off), buffer, size);
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#endif
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if (res != ERR_OK) {
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return LFS_ERR_IO;
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}
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return LFS_ERR_OK;
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}
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int McuLittleFS_block_device_prog(const struct lfs_config *c, lfs_block_t block, lfs_off_t off, const void *buffer, lfs_size_t size) {
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uint8_t res;
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#if McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_GENERIC
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res = ERR_FAILED; /* NYI */
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#elif McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_WINBOND_W25Q128
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res = McuW25_ProgramPage((block+McuLittleFS_CONFIG_BLOCK_OFFSET) * c->block_size + off, buffer, size);
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#elif McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_MCU_FLASH
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res = McuFlash_Program((void*)((block+McuLittleFS_CONFIG_BLOCK_OFFSET) * c->block_size + off), buffer, size);
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#endif
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if (res != ERR_OK) {
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return LFS_ERR_IO;
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}
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return LFS_ERR_OK;
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}
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int McuLittleFS_block_device_erase(const struct lfs_config *c, lfs_block_t block) {
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uint8_t res;
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#if McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_GENERIC
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res = ERR_FAILED; /* NYI */
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#elif McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_WINBOND_W25Q128
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res = McuW25_EraseSector4K((block+McuLittleFS_CONFIG_BLOCK_OFFSET) * c->block_size);
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#elif McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE==McuLittleFSBlockDevice_CONFIG_MEMORY_TYPE_MCU_FLASH
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res = McuFlash_Erase((void*)((block+McuLittleFS_CONFIG_BLOCK_OFFSET) * c->block_size), c->block_size);
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#endif
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if (res != ERR_OK) {
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return LFS_ERR_IO;
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}
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return LFS_ERR_OK;
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}
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int McuLittleFS_block_device_sync(const struct lfs_config *c) {
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return LFS_ERR_OK;
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}
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int McuLittleFS_block_device_deinit(void) {
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return LFS_ERR_OK;
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}
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int McuLittleFS_block_device_init(void) {
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return LFS_ERR_OK;
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}
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