X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_packedtags2.h;h=9cafe0e5b7add6febf57b747c5fc999aef3abceb;hp=7eb89d44e55f8758f4307636398513096bc3cc5c;hb=5bc32d099123b2e0e5f27f7421caa5413d3211f0;hpb=37fd9ec3587b5c4d497a7682522a9adfab682e51

diff --git a/yaffs_packedtags2.h b/yaffs_packedtags2.h
index 7eb89d4..9cafe0e 100644
--- a/yaffs_packedtags2.h
+++ b/yaffs_packedtags2.h
@@ -1,31 +1,51 @@
-// This is used to pack YAFFS2 tags, not YAFFS1tags.
+/*
+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system.
+ *
+ * Copyright (C) 2002-2011 Aleph One Ltd.
+ *   for Toby Churchill Ltd and Brightstar Engineering
+ *
+ * Created by Charles Manning <charles@aleph1.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1 as
+ * published by the Free Software Foundation.
+ *
+ * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
+ */
+
+/* This is used to pack YAFFS2 tags, not YAFFS1tags. */
 
 #ifndef __YAFFS_PACKEDTAGS2_H__
 #define __YAFFS_PACKEDTAGS2_H__
 
-
 #include "yaffs_guts.h"
 #include "yaffs_ecc.h"
 
-typedef struct
-{   
-    unsigned sequenceNumber;
-    unsigned chunkId;
-    unsigned objectId;
-    unsigned byteCount;
-    unsigned nandTagsEcc;
-    
-} yaffs_PackedTags2TagsPart;
-
-typedef struct
-{
-    yaffs_PackedTags2TagsPart t;
-    yaffs_ECCOther ecc;
-} yaffs_PackedTags2;
-
-
-void yaffs_PackTags2(yaffs_PackedTags2 *pt, const  yaffs_ExtendedTags *t);
-void yaffs_UnpackTags2(yaffs_ExtendedTags *t, const yaffs_PackedTags2 *pt);
+struct yaffs_packed_tags2_tags_only {
+	unsigned seq_number;
+	unsigned obj_id;
+	unsigned chunk_id;
+	unsigned n_bytes;
+};
+
+struct yaffs_packed_tags2 {
+	struct yaffs_packed_tags2_tags_only t;
+	struct yaffs_ecc_other ecc;
+};
+
+/* Full packed tags with ECC, used for oob tags */
+void yaffs_pack_tags2(struct yaffs_dev *dev,
+		      struct yaffs_packed_tags2 *pt,
+		      const struct yaffs_ext_tags *t, int tags_ecc);
+void yaffs_unpack_tags2(struct yaffs_dev *dev,
+			struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt,
+			int tags_ecc);
+
+/* Only the tags part (no ECC for use with inband tags */
+void yaffs_pack_tags2_tags_only(struct yaffs_dev *dev,
+				struct yaffs_packed_tags2_tags_only *pt,
+				const struct yaffs_ext_tags *t);
+void yaffs_unpack_tags2_tags_only(struct yaffs_dev *dev,
+				  struct yaffs_ext_tags *t,
+				  struct yaffs_packed_tags2_tags_only *pt);
 #endif
-
-