www.pudn.com > yaffs2.zip > yaffs_packedtags.c

#include "yaffs_packedtags.h" 
#include  
 
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)); 
		 
	} 
}