*** empty log message ***

[yaffs2.git] / yaffs_packedtags2.c

diff --git a/yaffs_packedtags2.c b/yaffs_packedtags2.c
new file mode 100644 (file)
index 0000000..f734882
--- /dev/null
+++ b/yaffs_packedtags2.c
@@ -0,0 +1,42 @@
+#include "yaffs_packedtags2.h"
+#include "yportenv.h"
+
+
+
+void yaffs_PackTags2(yaffs_PackedTags2 *pt, yaffs_ExtendedTags *t)
+{
+       pt->t.chunkId = t->chunkId;
+       pt->t.sequenceNumber = t->sequenceNumber;
+       pt->t.byteCount = t->byteCount;
+       pt->t.objectId = t->objectId;
+       
+       yaffs_ECCCalculateOther((unsigned char *)&pt->t,sizeof(yaffs_PackedTags2TagsPart),&pt->ecc);
+       
+}
+
+void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt)
+{
+
+       
+       if(pt->t.sequenceNumber == 0xFFFFFFFF)
+       {
+               memset(t,0,sizeof(yaffs_ExtendedTags));
+               
+       }
+       else
+       {
+               // Page is in use
+               yaffs_ECCOther ecc;
+               yaffs_ECCCalculateOther((unsigned char *)&pt->t,sizeof(yaffs_PackedTags2TagsPart),&ecc);
+               t->eccResult = yaffs_ECCCorrectOther((unsigned char *)&pt->t,sizeof(yaffs_PackedTags2TagsPart),&pt->ecc,&ecc);
+               t->blockBad = 0;
+               t->chunkUsed = 1;
+               t->objectId = pt->t.objectId;
+               t->chunkId =  pt->t.chunkId;
+               t->byteCount = pt->t.byteCount;
+               t->chunkDeleted = 0;
+               t->serialNumber = 0;
+               t->sequenceNumber = pt->t.sequenceNumber;
+       }
+}
+