#include <user/lib.h>
#include <inc/fs.h>

/* IDE disk number to look on for our file system */
#define DISKNO		1

#define BY2SECT		512	/* Bytes per disk sector */
#define SECT2BLK	(BY2BLK/BY2SECT)	/* sectors to a block */

/* Disk block n, when in memory, is mapped into the file system
 * server's address space at DISKMAP+(n*BY2BLK). */
#define DISKMAP		0x10000000

/* Maximum disk size we can handle (3GB) */
#define DISKMAX		0xc0000000

/* ide.c */
void ide_read(u_int diskno, u_int secno, void *dst, u_int nsecs);
void ide_write(u_int diskno, u_int secno, void *src, u_int nsecs);

/* fs.c */
int file_open(char *path, struct File **pfile);
int file_get_block(struct File *f, u_int blockno, void **pblk);
int file_set_size(struct File *f, u_int newsize);
void file_close(struct File *f);
int file_remove(char *path);
int file_create(char *path, struct File **file);
void file_truncate(struct File *f, u_int newsize);
void fs_init(void);
int file_dirty(struct File *f, u_int offset);
void fs_sync(void);
void file_flush(struct File*);
extern u_int *bitmap;
int map_block(u_int);
int alloc_block(void);

/* test.c */
void fs_test(void);