115 lines
2.4 KiB
C
115 lines
2.4 KiB
C
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#include <rtthread.h>
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#include <rtdevice.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/stat.h>
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#include "fal.h"
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#if defined(RT_USING_DFS)
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#include <dfs_fs.h>
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#endif
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#define DBG_TAG "falcfg"
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#define DBG_LVL DBG_INFO
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#include <rtdbg.h>
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#if defined(RT_USING_DFS) && defined(RT_USING_MTD_NOR)
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static const char g_fal_part_name[] = "config";
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static const char g_fal_mount_path[] = "/";
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static const char g_fal_fs_name[] = "lfs";
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static rt_bool_t fal_flashfs_partition_is_blank(void)
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{
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uint8_t probe[256];
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const struct fal_partition *part;
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rt_size_t i;
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part = fal_partition_find(g_fal_part_name);
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if (!part)
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{
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return RT_FALSE;
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}
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if (fal_partition_read(part, 0, probe, sizeof(probe)) != sizeof(probe))
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{
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return RT_FALSE;
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}
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for (i = 0; i < sizeof(probe); ++i)
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{
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if (probe[i] != 0xFF)
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{
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return RT_FALSE;
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}
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}
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return RT_TRUE;
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}
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static int fal_flashfs_mount(void)
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{
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(void)mkdir(g_fal_mount_path, 0);
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if (dfs_mount(g_fal_part_name, g_fal_mount_path, g_fal_fs_name, 0, 0) == 0)
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{
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LOG_I("mounted %s at %s as %s",
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g_fal_part_name,
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g_fal_mount_path,
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g_fal_fs_name);
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return RT_EOK;
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}
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return -RT_ERROR;
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}
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int fal_flashfs_mount_init(void)
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{
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rt_device_t dev;
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if (fal_init() <= 0)
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{
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LOG_E("fal init failed");
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return -RT_ERROR;
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}
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dev = rt_device_find(g_fal_part_name);
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if (!dev)
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{
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dev = fal_mtd_nor_device_create(g_fal_part_name);
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if (!dev)
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{
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LOG_E("create MTD NOR device %s failed", g_fal_part_name);
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return -RT_ERROR;
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}
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}
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LOG_I("using partition %s as MTD NOR device for %s", g_fal_part_name, g_fal_fs_name);
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if (fal_flashfs_mount() == RT_EOK)
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{
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return RT_EOK;
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}
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if (fal_flashfs_partition_is_blank())
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{
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LOG_W("partition %s is blank, formatting as %s", g_fal_part_name, g_fal_fs_name);
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if ((dfs_mkfs(g_fal_fs_name, g_fal_part_name) == 0) &&
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(fal_flashfs_mount() == RT_EOK))
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{
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return RT_EOK;
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}
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}
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LOG_W("mount %s failed; you can try manually: mkfs -t %s %s",
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g_fal_mount_path,
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g_fal_fs_name,
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g_fal_part_name);
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return RT_EOK;
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}
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INIT_ENV_EXPORT(fal_flashfs_mount_init);
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#endif /* RT_USING_DFS && RT_USING_MTD_NOR */
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