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fs/littlefs: VFS wrapper improvement: (1) Support block device interface, (2) support ioctl, stat and sync file operation, (3) support forceformat and autoformat option, (4) update file->f_pos and dir->fd_position, (5)remote the internal struct from dir, and (6) emove mtd byte read/write requirement.

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This commit is contained in:
Xiang Xiao
2019-01-27 12:31:28 -06:00
committed by Gregory Nutt
parent c511ff7ea2
commit af5e479fb5
5 changed files with 966 additions and 652 deletions
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fs/littlefs/Kconfig
+1 -1
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@@ -3,7 +3,7 @@ config FS_LITTLEFS
default n default n
select FS_READABLE select FS_READABLE
select FS_WRITABLE select FS_WRITABLE
depends on !DISABLE_MOUNTPOINT && MTD_BYTE_WRITE && EXPERIMENTAL depends on !DISABLE_MOUNTPOINT
---help--- ---help---
Build the LITTLEFS file system. https://github.com/ARMmbed/littlefs. Build the LITTLEFS file system. https://github.com/ARMmbed/littlefs.
fs/littlefs/README.md
+1 -1
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@@ -1,6 +1,6 @@
## usage ## usage
depends on !DISABLE_MOUNTPOINT && MTD_BYTE_WRITE depends on !DISABLE_MOUNTPOINT
1. register_mtddriver("/dev/w25", mtd, 0755, NULL); 1. register_mtddriver("/dev/w25", mtd, 0755, NULL);
2. mount("/dev/w25", "/w25", "littlefs", 0, NULL); 2. mount("/dev/w25", "/w25", "littlefs", 0, NULL);
fs/littlefs/lfs_vfs.c
+932 -601
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File diff suppressed because it is too large Load Diff
fs/mount/fs_mount.c
+7 -1
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@@ -72,7 +72,7 @@
*/ */
#if defined(CONFIG_FS_FAT) || defined(CONFIG_FS_ROMFS) || \ #if defined(CONFIG_FS_FAT) || defined(CONFIG_FS_ROMFS) || \
defined(CONFIG_FS_SMARTFS) defined(CONFIG_FS_SMARTFS) || defined(CONFIG_FS_LITTLEFS)
# define BDFS_SUPPORT 1 # define BDFS_SUPPORT 1
#endif #endif
@@ -117,6 +117,9 @@ extern const struct mountpt_operations romfs_operations;
#ifdef CONFIG_FS_SMARTFS #ifdef CONFIG_FS_SMARTFS
extern const struct mountpt_operations smartfs_operations; extern const struct mountpt_operations smartfs_operations;
#endif #endif
#ifdef CONFIG_FS_LITTLEFS
extern const struct mountpt_operations littlefs_operations;
#endif
static const struct fsmap_t g_bdfsmap[] = static const struct fsmap_t g_bdfsmap[] =
{ {
@@ -128,6 +131,9 @@ static const struct fsmap_t g_bdfsmap[] =
#endif #endif
#ifdef CONFIG_FS_SMARTFS #ifdef CONFIG_FS_SMARTFS
{ "smartfs", &smartfs_operations }, { "smartfs", &smartfs_operations },
#endif
#ifdef CONFIG_FS_LITTLEFS
{ "littlefs", &littlefs_operations },
#endif #endif
{ NULL, NULL }, { NULL, NULL },
}; };
include/nuttx/fs/dirent.h
+1 -24
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@@ -222,29 +222,6 @@ struct fs_hostfsdir_s
#endif /* CONFIG_DISABLE_MOUNTPOINT */ #endif /* CONFIG_DISABLE_MOUNTPOINT */
#ifdef CONFIG_FS_LITTLEFS
typedef uint32_t _lfs_block_t;
typedef uint32_t _lfs_size_t;
typedef uint32_t _lfs_off_t;
typedef struct _lfs_dir
{
struct _lfs_dir *next;
_lfs_block_t pair[2];
_lfs_off_t off;
_lfs_block_t head[2];
_lfs_off_t pos;
struct _lfs_disk_dir
{
uint32_t rev;
_lfs_size_t size;
_lfs_block_t tail[2];
} d;
} _lfs_dir_t;
#endif
struct fs_dirent_s struct fs_dirent_s
{ {
/* This is the node that was opened by opendir. The type of the inode /* This is the node that was opened by opendir. The type of the inode
@@ -313,7 +290,7 @@ struct fs_dirent_s
struct fs_spiffsdir_s spiffs; struct fs_spiffsdir_s spiffs;
#endif #endif
#ifdef CONFIG_FS_LITTLEFS #ifdef CONFIG_FS_LITTLEFS
_lfs_dir_t littlefs; FAR void *littlefs;
#endif #endif
#ifdef CONFIG_FS_UNIONFS #ifdef CONFIG_FS_UNIONFS
struct fs_unionfsdir_s unionfs; struct fs_unionfsdir_s unionfs;