Changeset 0f57d0e in mainline for uspace/srv/fs/fat/fat_fat.h

Timestamp:

2008-10-26T14:10:53Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b1178d0

Parents:

033ef7d3

Message:

Move functionality related to manipulatings file allocation tables to fat_fat.c.

File:

• uspace/srv/fs/fat/fat_fat.h (modified) (1 diff)

uspace/srv/fs/fat/fat_fat.h

@@ -34 +34 @@
 #define FAT_FAT_FAT_H_
 
+#include "../../vfs/vfs.h"
+#include <stdint.h>
+
+#define FAT1            0
+
+#define FAT_CLST_RES0   0x0000
+#define FAT_CLST_RES1   0x0001
+#define FAT_CLST_FIRST  0x0002
+#define FAT_CLST_BAD    0xfff7
+#define FAT_CLST_LAST1  0xfff8
+#define FAT_CLST_LAST8  0xffff
+
+/* internally used to mark root directory's parent */
+#define FAT_CLST_ROOTPAR        FAT_CLST_RES0
+/* internally used to mark root directory */
+#define FAT_CLST_ROOT           FAT_CLST_RES1
+
+
+/* forward declarations */
+struct block;
+struct fat_node;
+
+typedef uint16_t fat_cluster_t;
+
+#define fat_block_get(np, off) \
+    _fat_block_get((np)->idx->dev_handle, (np)->firstc, (off))
+    
+extern struct block *_fat_block_get(dev_handle_t, fat_cluster_t, off_t);
+extern uint16_t _fat_blcks_get(dev_handle_t, fat_cluster_t);
+extern uint16_t fat_bps_get(dev_handle_t);
+  
+extern void fat_append_clusters(struct fat_node *, fat_cluster_t);
+extern int fat_alloc_clusters(dev_handle_t, unsigned, fat_cluster_t *,
+    fat_cluster_t *);
+extern void fat_alloc_shadow_clusters(dev_handle_t, fat_cluster_t *, unsigned);
+extern void fat_mark_cluster(dev_handle_t, unsigned, fat_cluster_t,
+    fat_cluster_t);
+extern void fat_fill_gap(struct fat_node *, fat_cluster_t, off_t);
+
 #endif