*** empty log message ***

[yaffs2.git] / direct / yaffs_packedtags.c

diff --git a/direct/yaffs_packedtags.c b/direct/yaffs_packedtags.c
new file mode 100644 (file)
index 0000000..6214a71
--- /dev/null
+++ b/direct/yaffs_packedtags.c
@@ -0,0 +1,42 @@
+#include "yaffs_packedtags.h"
+#include <string.h>
+
+void yaffs_PackTags(yaffs_PackedTags *pt, yaffs_ExtendedTags *t)
+{
+       pt->chunkId = t->chunkId;
+       pt->serialNumber = t->serialNumber;
+       pt->byteCount = t->byteCount;
+       pt->objectId = t->objectId;
+       pt->ecc = 0;
+       pt->deleted = (t->chunkDeleted) ? 0 : 1;
+       pt->unusedStuff = 0;
+       pt->shouldBeFF = 0xFFFFFFFF;
+       
+}
+
+void yaffs_UnpackTags(yaffs_ExtendedTags *t, yaffs_PackedTags *pt)
+{
+       static __u8 allFF[] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,0xff, 0xff, 0xff, 0xff};
+       
+       if(memcmp(allFF,pt,sizeof(yaffs_PackedTags)))
+       {
+               t->blockBad = 0;
+               if(pt->shouldBeFF != 0xFFFFFFFF)
+               {
+                       t->blockBad = 1;
+               }
+               t->chunkUsed = 1;
+               t->objectId = pt->objectId;
+               t->chunkId = pt->chunkId;
+               t->byteCount = pt->byteCount;
+               t->eccResult =  YAFFS_ECC_RESULT_NO_ERROR;
+               t->chunkDeleted = (pt->deleted) ? 0 : 1;
+               t->serialNumber = pt->serialNumber;
+       }
+       else
+       {
+               memset(t,0,sizeof(yaffs_ExtendedTags));
+               
+       }
+}
+