omap3evm: Add CONFIG_CMD_ASKENV

[karo-tx-uboot.git] / include / fat.h

diff --git a/include/fat.h b/include/fat.h
index de48afd730654630f7e7fc803a2ca017feb575a0..f1b4a0d97c3be48af96c00eb9720ee10c251afd2 100644 (file)
--- a/include/fat.h
+++ b/include/fat.h
@@ -30,21 +30,18 @@
 #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)
@@ -102,6 +99,8 @@
 #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)))
@@ -177,13 +176,14 @@ typedef struct dir_slot {
  * (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;
 
@@ -212,4 +212,5 @@ 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_ */