fal_flash.c
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/*
* Copyright (c) 2006-2018, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-05-17 armink the first version
*/
#include <fal.h>
#include <string.h>
/* flash device table, must defined by user */
#if !defined(FAL_FLASH_DEV_TABLE)
#error "You must defined flash device table (FAL_FLASH_DEV_TABLE) on 'fal_cfg.h'"
#endif
static const struct fal_flash_dev * const device_table[] = FAL_FLASH_DEV_TABLE;
static const size_t device_table_len = sizeof(device_table) / sizeof(device_table[0]);
static uint8_t init_ok = 0;
/**
* Initialize all flash device on FAL flash table
*
* @return result
*/
int fal_flash_init(void)
{
size_t i;
if (init_ok)
{
return 0;
}
for (i = 0; i < device_table_len; i++)
{
assert(device_table[i]->ops.read);
assert(device_table[i]->ops.write);
assert(device_table[i]->ops.erase);
/* init flash device on flash table */
if (device_table[i]->ops.init)
{
device_table[i]->ops.init();
}
log_d("Flash device | %*.*s | addr: 0x%08lx | len: 0x%08x | blk_size: 0x%08x |initialized finish.",
FAL_DEV_NAME_MAX, FAL_DEV_NAME_MAX, device_table[i]->name, device_table[i]->addr, device_table[i]->len,
device_table[i]->blk_size);
}
init_ok = 1;
return 0;
}
/**
* find flash device by name
*
* @param name flash device name
*
* @return != NULL: flash device
* NULL: not found
*/
const struct fal_flash_dev *fal_flash_device_find(const char *name)
{
assert(init_ok);
assert(name);
size_t i;
for (i = 0; i < device_table_len; i++)
{
if (!strncmp(name, device_table[i]->name, FAL_DEV_NAME_MAX)) {
return device_table[i];
}
}
return NULL;
}