diff options
Diffstat (limited to 'firmware/export/fat.h')
| -rw-r--r-- | firmware/export/fat.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/firmware/export/fat.h b/firmware/export/fat.h new file mode 100644 index 0000000000..ec71fceb05 --- /dev/null +++ b/firmware/export/fat.h @@ -0,0 +1,96 @@ +/*************************************************************************** + * __________ __ ___. + * 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; + unsigned char sectorcache[3][SECTOR_SIZE]; +}; + + +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, int attr); +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, int attr); + +extern int fat_opendir(struct fat_dir *ent, unsigned int currdir); +extern int fat_getnext(struct fat_dir *ent, struct fat_direntry *entry); + +#endif |