rt-thread/bsp/nuvoton/numaker-pfm-m487/applications/mnt.c

137 lines
2.9 KiB
C

/**************************************************************************//**
*
* @copyright (C) 2019 Nuvoton Technology Corp. All rights reserved.
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-1-16 Wayne First version
*
******************************************************************************/
#include <rtthread.h>
#include <dfs_fs.h>
#include <dfs_file.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/statfs.h>
#if defined(RT_USING_FAL)
#include <fal.h>
#endif
#if defined(BOARD_USING_STORAGE_SPIFLASH)
#define MOUNT_POINT_SPIFLASH0 "/"
#endif
#if defined(BOARD_USING_STORAGE_SPIFLASH)
#if defined(RT_USB_DEVICE_MSTORAGE)
int mnt_init_spiflash0(void)
{
rt_kprintf("Sorry, you enabled RT_USB_DEVICE_MSTORAGE option in menu, so we won't mount flash0 on /.\n");
return 0;
}
#else
/* Recursive mkdir */
#if defined(RT_USBH_MSTORAGE) && defined(UDISK_MOUNTPOINT)
static int mkdir_p(const char *dir, const mode_t mode)
{
int ret = -1;
char *tmp = NULL;
char *p = NULL;
struct stat sb;
rt_size_t len;
if (!dir)
goto exit_mkdir_p;
/* Copy path */
/* Get the string length */
len = strlen(dir);
tmp = rt_strdup(dir);
/* Remove trailing slash */
if (tmp[len - 1] == '/')
{
tmp[len - 1] = '\0';
len--;
}
/* check if path exists and is a directory */
if (stat(tmp, &sb) == 0)
{
if (S_ISDIR(sb.st_mode))
{
ret = 0;
goto exit_mkdir_p;
}
}
/* Recursive mkdir */
for (p = tmp + 1; p - tmp <= len; p++)
{
if ((*p == '/') || (p - tmp == len))
{
*p = 0;
/* Test path */
if (stat(tmp, &sb) != 0)
{
/* Path does not exist - create directory */
if (mkdir(tmp, mode) < 0)
{
goto exit_mkdir_p;
}
}
else if (!S_ISDIR(sb.st_mode))
{
/* Not a directory */
goto exit_mkdir_p;
}
if (p - tmp != len)
*p = '/';
}
}
ret = 0;
exit_mkdir_p:
if (tmp)
rt_free(tmp);
return ret;
}
#endif
int mnt_init_spiflash0(void)
{
if (dfs_mount("flash0", MOUNT_POINT_SPIFLASH0, "elm", 0, 0) != 0)
{
rt_kprintf("Failed to mount elm on %s.\n", MOUNT_POINT_SPIFLASH0);
rt_kprintf("Try to execute 'mkfs -t elm flash0' first, then reboot.\n");
goto exit_mnt_init_spiflash0;
}
rt_kprintf("mount flash0 with elmfat type: ok\n");
#if defined(RT_USBH_MSTORAGE) && defined(UDISK_MOUNTPOINT)
if (mkdir_p(UDISK_MOUNTPOINT, 0) < 0)
{
rt_kprintf("Failed to create directory on %s for RT_USBH_MSTORAGE.\n", UDISK_MOUNTPOINT);
}
#endif
exit_mnt_init_spiflash0:
return 0;
}
#endif
INIT_ENV_EXPORT(mnt_init_spiflash0);
#endif