95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
#ifndef VFS_VFS_H_
|
|
#define VFS_VFS_H_
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <stdbool.h>
|
|
#include "spinlock/spinlock.h"
|
|
#include "fs/portlfs/portlfs.h"
|
|
#include "fs/portfatfs/portfatfs.h"
|
|
#include "storedev/storedev.h"
|
|
#include "sysdefs/fs.h"
|
|
#include "compiler/attr.h"
|
|
|
|
#define VFS_MOUNTPOINT_LABEL_MAX 128
|
|
#define VFS_MOUNTPOINTS_MAX 30
|
|
|
|
enum {
|
|
VFS_LITTLEFS,
|
|
VFS_FAT16,
|
|
VFS_FAT32,
|
|
};
|
|
|
|
UNUSED static const char *vfs_strings[] = {
|
|
"Little FS",
|
|
"FAT16",
|
|
"FAT32",
|
|
};
|
|
|
|
enum {
|
|
VFS_FLAG_READ = 1<<0,
|
|
VFS_FLAG_WRITE = 1<<1,
|
|
VFS_FLAG_MAKE = 1<<2,
|
|
};
|
|
|
|
#define VFS_PATH_MAX 1024
|
|
|
|
typedef struct VfsObj {
|
|
struct VfsObj *next;
|
|
SpinLock spinlock;
|
|
char path[VFS_MOUNTPOINT_LABEL_MAX+1+VFS_PATH_MAX];
|
|
void *extra;
|
|
struct VfsMountPoint *vmp;
|
|
int32_t flags;
|
|
int32_t (*read)(struct VfsObj *vobj, uint8_t *const buffer, size_t n, size_t off);
|
|
int32_t (*write)(struct VfsObj *vobj, const uint8_t *const buffer, size_t n, size_t off);
|
|
void (*cleanup)(struct VfsObj *vobj);
|
|
} VfsObj;
|
|
|
|
typedef struct {
|
|
SpinLock spinlock;
|
|
VfsObj *vobjs;
|
|
} VfsBusyObjs;
|
|
|
|
extern VfsBusyObjs VFS_BUSY_VOBJS;
|
|
|
|
typedef struct VfsMountPoint {
|
|
int _hshtbstate;
|
|
char label[VFS_MOUNTPOINT_LABEL_MAX];
|
|
|
|
int32_t fstype;
|
|
StoreDev *backingsd;
|
|
|
|
VfsObj *(*open)(struct VfsMountPoint *vmp, const char *path, uint32_t flags);
|
|
int32_t (*cleanup)(struct VfsMountPoint *vmp);
|
|
int32_t (*stat)(struct VfsMountPoint *vmp, const char *path, FsStat *statbuf);
|
|
int32_t (*fetchdirent)(struct VfsMountPoint *vmp, const char *path, FsDirent *direntbuf, size_t idx);
|
|
int32_t (*mkdir)(struct VfsMountPoint *vmp, const char *path);
|
|
int32_t (*delete)(struct VfsMountPoint *vmp, const char *path);
|
|
|
|
union {
|
|
LittleFs littlefs;
|
|
FatFs fatfs;
|
|
} fs;
|
|
SpinLock spinlock;
|
|
} VfsMountPoint;
|
|
|
|
typedef struct {
|
|
SpinLock spinlock;
|
|
VfsMountPoint mountpoints[VFS_MOUNTPOINTS_MAX];
|
|
} VfsTable;
|
|
|
|
extern VfsTable VFS_TABLE;
|
|
|
|
void vfs_init(void);
|
|
int32_t vfs_unmount(char *mountpoint);
|
|
int32_t vfs_mount(char *mountpoint, int32_t fstype, StoreDev *backingsd, bool format);
|
|
void vfs_close(VfsObj *vobj);
|
|
VfsObj *vfs_open(char *mountpoint, const char *path, uint32_t flags);
|
|
int32_t vfs_stat(char *mountpoint, const char *path, FsStat *stat);
|
|
int32_t vfs_fetchdirent(char *mountpoint, const char *path, FsDirent *direntbuf, size_t idx);
|
|
int32_t vfs_mkdir(char *mountpoint, const char *path);
|
|
int32_t vfs_delete(char *mountpoint, const char *path);
|
|
|
|
#endif // VFS_VFS_H_
|