rt-thread-official/bsp/stm32/stm32f407-atk-explorer/board/ports/drv_filesystem.c

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2018-12-13     balanceTWK   add sdcard port file
 * 2021-05-10     Meco Man     fix a bug that cannot use fatfs in the main thread at starting up
 * 2021-07-28     Meco Man     implement romfs as the root filesystem
 */

#include <rtthread.h>

#ifdef BSP_USING_FS
#include <dfs_romfs.h>
#include <dfs_fs.h>
#include <dfs_file.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/statfs.h>

#if DFS_FILESYSTEMS_MAX < 4
#error "Please define DFS_FILESYSTEMS_MAX more than 4"
#endif
#if DFS_FILESYSTEM_TYPES_MAX < 4
#error "Please define DFS_FILESYSTEM_TYPES_MAX more than 4"
#endif

#define DBG_TAG "app.filesystem"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>

#ifdef BSP_USING_SDCARD_FATFS
static int onboard_sdcard_mount(void)
{
    if (dfs_mount("sd0", "/sdcard", "elm", 0, 0) == RT_EOK)
    {
        LOG_I("SD card mount to '/sdcard'");
    }
    else
    {
        LOG_E("SD card mount to '/sdcard' failed!");
    }

    return RT_EOK;
}
#endif

#ifdef BSP_USING_SPI_FLASH_LITTLEFS
#include <fal.h>
#define FS_PARTITION_NAME              "spiflash0"

static int onboard_spiflash_mount(void)
{
    struct rt_device *mtd_dev = RT_NULL;

    fal_init();

    mtd_dev = fal_mtd_nor_device_create(FS_PARTITION_NAME);
    if (!mtd_dev)
    {
        LOG_E("Can't create a mtd device on '%s' partition.", FS_PARTITION_NAME);
    }

    if (dfs_mount(FS_PARTITION_NAME, "/spiflash", "lfs", 0, 0) == RT_EOK)
    {
        LOG_I("spi flash mount to '/spiflash'");
    }
    else
    {
        dfs_mkfs("lfs", FS_PARTITION_NAME);
        if (dfs_mount(FS_PARTITION_NAME, "/spiflash", "lfs", 0, 0) == RT_EOK)
        {
            LOG_I("spi flash mount to '/spiflash'");
        }
        else
        {
            LOG_E("spi flash failed to mount to '/spiflash'");
        }
    }

    return RT_EOK;
}
#endif

static const struct romfs_dirent _romfs_root[] =
{
#ifdef BSP_USING_SDCARD_FATFS
    {ROMFS_DIRENT_DIR, "sdcard", RT_NULL, 0},
#endif

#ifdef BSP_USING_SPI_FLASH_LITTLEFS
    {ROMFS_DIRENT_DIR, "spiflash", RT_NULL, 0},
#endif
};

const struct romfs_dirent romfs_root =
{
    ROMFS_DIRENT_DIR, "/", (rt_uint8_t *)_romfs_root, sizeof(_romfs_root) / sizeof(_romfs_root[0])
};

static int filesystem_mount(void)
{
    if (dfs_mount(RT_NULL, "/", "rom", 0, &(romfs_root)) != 0)
    {
        LOG_E("rom mount to '/' failed!");
    }
#ifdef BSP_USING_SDCARD_FATFS
    onboard_sdcard_mount();
#endif

#ifdef BSP_USING_SPI_FLASH_LITTLEFS
    onboard_spiflash_mount();
#endif

    return RT_EOK;
}
INIT_APP_EXPORT(filesystem_mount);

#endif /* BSP_USING_FS */