#include <asm/byteorder.h>
#define CONFIG_SUPPORT_VFAT
-
-#define SECTOR_SIZE FS_BLOCK_SIZE
-
-#define FS_BLOCK_SIZE 512
-
-#if FS_BLOCK_SIZE != SECTOR_SIZE
-#error FS_BLOCK_SIZE != SECTOR_SIZE - This code needs to be fixed!
-#endif
+/* Maximum Long File Name length supported here is 128 UTF-16 code units */
+#define VFAT_MAXLEN_BYTES 256 /* Maximum LFN buffer in bytes */
+#define VFAT_MAXSEQ 9 /* Up to 9 of 13 2-byte UTF-16 entries */
+#define PREFETCH_BLOCKS 2
#define MAX_CLUSTSIZE 65536
-#define DIRENTSPERBLOCK (FS_BLOCK_SIZE/sizeof(dir_entry))
-#define DIRENTSPERCLUST ((mydata->clust_size*SECTOR_SIZE)/sizeof(dir_entry))
+#define DIRENTSPERBLOCK (mydata->sect_size / sizeof(dir_entry))
+#define DIRENTSPERCLUST ((mydata->clust_size * mydata->sect_size) / \
+ sizeof(dir_entry))
#define FATBUFBLOCKS 6
-#define FATBUFSIZE (FS_BLOCK_SIZE*FATBUFBLOCKS)
+#define FATBUFSIZE (mydata->sect_size * FATBUFBLOCKS)
#define FAT12BUFSIZE ((FATBUFSIZE*2)/3)
#define FAT16BUFSIZE (FATBUFSIZE/2)
#define FAT32BUFSIZE (FATBUFSIZE/4)
#endif
#define TOLOWER(c) if((c) >= 'A' && (c) <= 'Z'){(c)+=('a' - 'A');}
+#define TOUPPER(c) if ((c) >= 'a' && (c) <= 'z') \
+ (c) -= ('a' - 'A');
#define START(dent) (FAT2CPU16((dent)->start) \
+ (mydata->fatsize != 32 ? 0 : \
(FAT2CPU16((dent)->starthi) << 16)))
* (see FAT32 accesses)
*/
typedef struct {
- __u8 fatbuf[FATBUFSIZE]; /* Current FAT buffer */
+ __u8 *fatbuf; /* Current FAT buffer */
int fatsize; /* Size of FAT in bits */
- __u16 fatlength; /* Length of FAT in sectors */
+ __u32 fatlength; /* Length of FAT in sectors */
__u16 fat_sect; /* Starting sector of the FAT */
- __u16 rootdir_sect; /* Start sector of root directory */
+ __u32 rootdir_sect; /* Start sector of root directory */
+ __u16 sect_size; /* Size of sectors in bytes */
__u16 clust_size; /* Size of clusters in sectors */
- short data_begin; /* The sector of the first cluster, can be negative */
+ int data_begin; /* The sector of the first cluster, can be negative */
int fatbufnum; /* Used by get_fatent, init to -1 */
} fsdata;
int file_cd(const char *path);
int file_fat_detectfs(void);
int file_fat_ls(const char *dir);
+long file_fat_read_at(const char *filename, unsigned long pos, void *buffer,
+ unsigned long maxsize);
long file_fat_read(const char *filename, void *buffer, unsigned long maxsize);
const char *file_getfsname(int idx);
int fat_register_device(block_dev_desc_t *dev_desc, int part_no);
+int file_fat_write(const char *filename, void *buffer, unsigned long maxsize);
#endif /* _FAT_H_ */