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/*
* (C) Copyright 2002
* Stäubli Faverges - <www.staubli.com>
* Pierre AUBERT p.aubert@staubli.com
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _FDOS_H_
#define _FDOS_H_
#undef FDOS_DEBUG
#ifdef FDOS_DEBUG
#define PRINTF(fmt,args...) printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif
/* Data structure describing media */
typedef struct fs
{
unsigned long tot_sectors;
int cluster_size;
int num_clus;
int fat_start;
int fat_len;
int nb_fat;
int num_fat;
int dir_start;
int dir_len;
unsigned char *fat_buf;
} Fs_t;
/* Data structure describing one file system slot */
typedef struct slot {
int (*map) (struct fs *fs,
struct slot *file,
int where,
int *len);
unsigned long FileSize;
unsigned short int FirstAbsCluNr;
unsigned short int PreviousAbsCluNr;
unsigned short int PreviousRelCluNr;
Directory_t dir;
} Slot_t;
typedef struct file {
char *name;
int Case;
Fs_t *fs;
Slot_t subdir;
Slot_t file;
} File_t;
/* dev.c */
int dev_read (void *buffer, int where, int len);
int dev_open (void);
int check_dev (BootSector_t *boot, Fs_t *fs);
/* fat.c */
unsigned int fat_decode (Fs_t *fs, unsigned int num);
int read_fat (BootSector_t *boot, Fs_t *fs);
/* vfat.c */
int vfat_lookup (Slot_t *dir,
Fs_t *fs,
Directory_t *dirent,
int *entry,
int *vfat_start,
char *filename,
int flags,
char *outname,
Slot_t *file);
/* subdir.c */
char *basename (char *name);
int open_subdir (File_t *desc);
int open_file (Slot_t *file, Directory_t *dir);
int read_file (Fs_t *fs,
Slot_t *file,
char *buf,
int where,
int len);
void init_subdir (void);
/* fs.c */
int fs_init (Fs_t *fs);
#endif
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