yaffs_packedtags2.c

   1 #include "yaffs_packedtags2.h"
   2 #include "yportenv.h"
   3
   4
   5
   6 void yaffs_PackTags2(yaffs_PackedTags2 *pt, yaffs_ExtendedTags *t)
   7 {
   8         pt->t.chunkId = t->chunkId;
   9         pt->t.sequenceNumber = t->sequenceNumber;
  10         pt->t.byteCount = t->byteCount;
  11         pt->t.objectId = t->objectId;
  12
  13         yaffs_ECCCalculateOther((unsigned char *)&pt->t,sizeof(yaffs_PackedTags2TagsPart),&pt->ecc);
  14
  15 }
  16
  17 void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt)
  18 {
  19
  20
  21         if(pt->t.sequenceNumber == 0xFFFFFFFF)
  22         {
  23                 memset(t,0,sizeof(yaffs_ExtendedTags));
  24
  25         }
  26         else
  27         {
  28                 // Page is in use
  29                 yaffs_ECCOther ecc;
  30                 yaffs_ECCCalculateOther((unsigned char *)&pt->t,sizeof(yaffs_PackedTags2TagsPart),&ecc);
  31                 t->eccResult = yaffs_ECCCorrectOther((unsigned char *)&pt->t,sizeof(yaffs_PackedTags2TagsPart),&pt->ecc,&ecc);
  32                 t->blockBad = 0;
  33                 t->chunkUsed = 1;
  34                 t->objectId = pt->t.objectId;
  35                 t->chunkId =  pt->t.chunkId;
  36                 t->byteCount = pt->t.byteCount;
  37                 t->chunkDeleted = 0;
  38                 t->serialNumber = 0;
  39                 t->sequenceNumber = pt->t.sequenceNumber;
  40         }
  41 }
  42