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Added SimpleFS read support

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This commit is contained in:
Jozef Nagy 2025-01-29 20:05:50 +01:00
parent 758d681005
commit 4ec95a6a52
Signed by untrusted user who does not match committer: crz
GPG key ID: 459A4811CEAC7068
8 changed files with 174 additions and 107 deletions
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19
boot/include/vfs/vfs.h
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@ -20,19 +20,15 @@
#ifndef _VFS_VFS_H
#define _VFS_VFS_H
#include <vfs/drive.h>
#include <stdint.h>
#include <stddef.h>
struct vfs_drive;
struct vfs_filesystem {
char *fsname;
uint8_t (*read)(char *, char *, struct vfs_drive *, void *);
size_t (*read)(char *, char *, struct vfs_drive *, void *);
uint8_t (*write)(char *, char *, size_t, struct vfs_drive *, void *);
uint8_t (*mount)(struct vfs_drive *, void *);
uint8_t *fs_data;
void *fsdata;
};
struct vfs_mount {
@ -40,9 +36,14 @@ struct vfs_mount {
struct vfs_drive *drive;
};
void vfs_init(void);
int vfs_init(char *root_mountpoint);
int vfs_read(char *filename, char *buf, size_t len);
/* This function allocates `buf`. Passing a non-NULL value will result in an error. */
/* NOTE: Remember to free the allocated memory afterwards! */
size_t vfs_read(char *filename, char *buf);
int vfs_write(char *filename, char *buf, size_t len);
/* Every platform will define this on its own */
struct vfs_drive *mount_boot_volume(char *mountpoint);
#endif /* _VFS_VFS_H */