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