70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2018-01-26 armink the first version
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*/
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#include "eeprom_fm24.h"
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#include <fal.h>
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static int init(void);
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static int erase(long offset, size_t size);
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static int read(long offset, uint8_t *buf, size_t size);
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static int write(long offset, const uint8_t *buf, size_t size);
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// 1.定义 flash 设备
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struct fal_flash_dev eeprom_fm24 =
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{
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.name = EEPROM_FM24_DEV_NAME,
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.addr = 0,
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.len = FM24_PAGE_SIZE,
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.blk_size = EEPROM_FM24_BLOCK_SIZE,
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.ops = {init, read, write, erase},
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.write_gran = 1};
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static int init(void)
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{
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return 1;
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}
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static int erase(long offset, size_t size)
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{
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// uint8_t erase_size = size > FAL_ERASE_SIZE ? FAL_ERASE_SIZE : size;
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// uint8_t buf[FAL_ERASE_SIZE];
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// osel_memset(buf, 0xFF, FAL_ERASE_SIZE);
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// for (uint8_t i = 0; i < (size / FM24_PAGE_SIZE); i++)
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// {
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// uint32_t addr = eeprom_fm24.addr + offset + i * FM24_PAGE_SIZE;
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// eeprom_fm24_write(addr, (uint8_t *)buf, erase_size);
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// }
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return size;
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}
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static int read(long offset, uint8_t *buf, size_t size)
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{
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/* You can add your code under here. */
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if (size == 0)
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{
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return 0;
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}
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uint32_t addr = eeprom_fm24.addr + offset;
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BOOL res = eeprom_fm24_read(addr, buf, size);
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return res == TRUE ? size : 0;
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}
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static int write(long offset, const uint8_t *buf, size_t size)
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{
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if (size == 0)
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{
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return 0;
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}
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uint32_t addr = eeprom_fm24.addr + offset;
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BOOL res = eeprom_fm24_write(addr, (uint8_t *)buf, size);
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return res == TRUE ? (int)size : -1;
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}
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