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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2002 by Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef FAT_H
#define FAT_H
#include <stdbool.h>
#define SECTOR_SIZE 512
struct fat_direntry
{
unsigned char name[256]; /* Name plus \0 */
unsigned short attr; /* Attributes */
unsigned char crttimetenth; /* Millisecond creation
time stamp (0-199) */
unsigned short crttime; /* Creation time */
unsigned short crtdate; /* Creation date */
unsigned short lstaccdate; /* Last access date */
unsigned short wrttime; /* Last write time */
unsigned short wrtdate; /* Last write date */
unsigned int filesize; /* File size in bytes */
int firstcluster; /* fstclusterhi<<16 + fstcluslo */
};
#define FAT_ATTR_READ_ONLY 0x01
#define FAT_ATTR_HIDDEN 0x02
#define FAT_ATTR_SYSTEM 0x04
#define FAT_ATTR_VOLUME_ID 0x08
#define FAT_ATTR_DIRECTORY 0x10
#define FAT_ATTR_ARCHIVE 0x20
struct fat_file
{
int firstcluster; /* first cluster in file */
int lastcluster; /* cluster of last access */
int lastsector; /* sector of last access */
int sectornum; /* sector number in this cluster */
unsigned int direntry; /* short dir entry index from start of dir */
unsigned int direntries; /* number of dir entries used by this file */
unsigned int dircluster; /* first cluster of dir */
bool eof;
};
struct fat_dir
{
unsigned int entry;
unsigned int entrycount;
int sector;
struct fat_file file;
};
extern int fat_mount(int startsector);
extern void fat_size(unsigned int* size, unsigned int* free);
extern void fat_recalc_free(void);
extern int fat_create_dir(unsigned int currdir, char *name);
extern int fat_startsector(void);
extern int fat_open(unsigned int cluster,
struct fat_file* ent,
struct fat_dir* dir);
extern int fat_create_file(char* name,
struct fat_file* ent,
struct fat_dir* dir);
extern int fat_readwrite(struct fat_file *ent, int sectorcount,
void* buf, bool write );
extern int fat_closewrite(struct fat_file *ent, int size);
extern int fat_seek(struct fat_file *ent, unsigned int sector );
extern int fat_remove(struct fat_file *ent);
extern int fat_truncate(struct fat_file *ent);
extern int fat_rename(struct fat_file* file,
unsigned char* newname,
int size);
extern int fat_opendir(struct fat_dir *ent, unsigned int currdir);
extern int fat_getnext(struct fat_dir *ent, struct fat_direntry *entry);
#endif
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