Changeset c223ee2 in mainline for uspace/srv/fs/exfat/exfat_fat.h

Timestamp:

2011-07-14T11:33:54Z (14 years ago)

Author:

Oleg Romanenko <romanenko.oleg@…>

Branches:

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

Children:

4dd9395

Parents:

e584623

Message:

exFAT: functions for FAT.

1. fat_cluster_walk
2. exfat_block_get
3. exfat_block_get_by_clst

File:

• uspace/srv/fs/exfat/exfat_fat.h (modified) (3 diffs)

uspace/srv/fs/exfat/exfat_fat.h

@@ -45 +45 @@
 #define EXFAT_ROOT_PAR  0
 
-#define EXFAT_CLST_LAST 0xfffffff6
-#define EXFAT_CLST_BAD  0xfffffff7
-#define EXFAT_CLST_EOF  0xffffffff
+#define EXFAT_CLST_FIRST        0x00000002
+#define EXFAT_CLST_LAST         0xfffffff6
+#define EXFAT_CLST_BAD          0xfffffff7
+#define EXFAT_CLST_EOF          0xffffffff
 
 /* forward declarations */
@@ -57 +58 @@
 
 
+#define fat_clusters_get(numc, bs, dh, fc) \
+    fat_cluster_walk((bs), (dh), (fc), NULL, (numc), (uint32_t) -1)
+extern int fat_cluster_walk(struct exfat_bs *bs, devmap_handle_t devmap_handle, 
+    exfat_cluster_t firstc, exfat_cluster_t *lastc, uint32_t *numc,
+    uint32_t max_clusters);
+extern int exfat_block_get(block_t **block, struct exfat_bs *bs,
+    struct exfat_node *nodep, aoff64_t bn, int flags);
+extern int exfat_block_get_by_clst(block_t **block, struct exfat_bs *bs, 
+    devmap_handle_t devmap_handle, bool fragmented, exfat_cluster_t fcl,
+    exfat_cluster_t *clp, aoff64_t bn, int flags);
+
 extern int fat_get_cluster(struct exfat_bs *bs, devmap_handle_t devmap_handle,
     exfat_cluster_t clst, exfat_cluster_t *value);
@@ -62 +74 @@
     exfat_cluster_t clst, exfat_cluster_t value);
 extern int exfat_sanity_check(struct exfat_bs *, devmap_handle_t);
+
+
+
 #endif