* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
- *
*/
#include "yaffs_packedtags2.h"
#define EXTRA_OBJECT_TYPE_SHIFT (28)
#define EXTRA_OBJECT_TYPE_MASK ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT)
-static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 * pt)
+
+static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart * ptt)
{
T(YAFFS_TRACE_MTD,
(TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR),
- pt->t.objectId, pt->t.chunkId, pt->t.byteCount,
- pt->t.sequenceNumber));
+ ptt->objectId, ptt->chunkId, ptt->byteCount,
+ ptt->sequenceNumber));
+}
+static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 * pt)
+{
+ yaffs_DumpPackedTags2TagsPart(&pt->t);
}
static void yaffs_DumpTags2(const yaffs_ExtendedTags * t)
{
T(YAFFS_TRACE_MTD,
(TSTR
- ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte "
- "%d del %d ser %d seq %d"
+ ("ext.tags eccres %d blkbad %d chused %d obj %d chunk%d byte %d del %d ser %d seq %d"
TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId,
t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber,
t->sequenceNumber));
}
-void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t)
+void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart * ptt, const yaffs_ExtendedTags * t)
{
- pt->t.chunkId = t->chunkId;
- pt->t.sequenceNumber = t->sequenceNumber;
- pt->t.byteCount = t->byteCount;
- pt->t.objectId = t->objectId;
+ ptt->chunkId = t->chunkId;
+ ptt->sequenceNumber = t->sequenceNumber;
+ ptt->byteCount = t->byteCount;
+ ptt->objectId = t->objectId;
if (t->chunkId == 0 && t->extraHeaderInfoAvailable) {
/* Store the extra header info instead */
/* We save the parent object in the chunkId */
- pt->t.chunkId = EXTRA_HEADER_INFO_FLAG
+ ptt->chunkId = EXTRA_HEADER_INFO_FLAG
| t->extraParentObjectId;
if (t->extraIsShrinkHeader) {
- pt->t.chunkId |= EXTRA_SHRINK_FLAG;
+ ptt->chunkId |= EXTRA_SHRINK_FLAG;
}
if (t->extraShadows) {
- pt->t.chunkId |= EXTRA_SHADOWS_FLAG;
+ ptt->chunkId |= EXTRA_SHADOWS_FLAG;
}
- pt->t.objectId &= ~EXTRA_OBJECT_TYPE_MASK;
- pt->t.objectId |=
+ ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
+ ptt->objectId |=
(t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT);
if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) {
- pt->t.byteCount = t->extraEquivalentObjectId;
+ ptt->byteCount = t->extraEquivalentObjectId;
} else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) {
- pt->t.byteCount = t->extraFileLength;
+ ptt->byteCount = t->extraFileLength;
} else {
- pt->t.byteCount = 0;
+ ptt->byteCount = 0;
}
}
- yaffs_DumpPackedTags2(pt);
+ yaffs_DumpPackedTags2TagsPart(ptt);
yaffs_DumpTags2(t);
+}
+
+
+void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t)
+{
+ yaffs_PackTags2TagsPart(&pt->t,t);
#ifndef YAFFS_IGNORE_TAGS_ECC
{
#endif
}
-void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt)
+
+void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags * t, yaffs_PackedTags2TagsPart * ptt)
{
memset(t, 0, sizeof(yaffs_ExtendedTags));
yaffs_InitialiseTags(t);
+ if (ptt->sequenceNumber != 0xFFFFFFFF) {
+ t->blockBad = 0;
+ t->chunkUsed = 1;
+ t->objectId = ptt->objectId;
+ t->chunkId = ptt->chunkId;
+ t->byteCount = ptt->byteCount;
+ t->chunkDeleted = 0;
+ t->serialNumber = 0;
+ t->sequenceNumber = ptt->sequenceNumber;
+
+ /* Do extra header info stuff */
+
+ if (ptt->chunkId & EXTRA_HEADER_INFO_FLAG) {
+ t->chunkId = 0;
+ t->byteCount = 0;
+
+ t->extraHeaderInfoAvailable = 1;
+ t->extraParentObjectId =
+ ptt->chunkId & (~(ALL_EXTRA_FLAGS));
+ t->extraIsShrinkHeader =
+ (ptt->chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0;
+ t->extraShadows =
+ (ptt->chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0;
+ t->extraObjectType =
+ ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT;
+ t->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
+
+ if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) {
+ t->extraEquivalentObjectId = ptt->byteCount;
+ } else {
+ t->extraFileLength = ptt->byteCount;
+ }
+ }
+ }
+
+ yaffs_DumpPackedTags2TagsPart(ptt);
+ yaffs_DumpTags2(t);
+
+}
+
+
+void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt)
+{
+
+ yaffs_UnpackTags2TagsPart(t,&pt->t);
+
if (pt->t.sequenceNumber != 0xFFFFFFFF) {
/* Page is in use */
#ifdef YAFFS_IGNORE_TAGS_ECC
(yaffs_PackedTags2TagsPart),
&pt->ecc, &ecc);
switch(result){
- case 0:
- t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
+ case 0:
+ t->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
break;
- case 1:
+ case 1:
t->eccResult = YAFFS_ECC_RESULT_FIXED;
break;
case -1:
}
}
#endif
- 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;
-
- /* Do extra header info stuff */
-
- if (pt->t.chunkId & EXTRA_HEADER_INFO_FLAG) {
- t->chunkId = 0;
- t->byteCount = 0;
-
- t->extraHeaderInfoAvailable = 1;
- t->extraParentObjectId =
- pt->t.chunkId & (~(ALL_EXTRA_FLAGS));
- t->extraIsShrinkHeader =
- (pt->t.chunkId & EXTRA_SHRINK_FLAG) ? 1 : 0;
- t->extraShadows =
- (pt->t.chunkId & EXTRA_SHADOWS_FLAG) ? 1 : 0;
- t->extraObjectType =
- pt->t.objectId >> EXTRA_OBJECT_TYPE_SHIFT;
- t->objectId &= ~EXTRA_OBJECT_TYPE_MASK;
-
- if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) {
- t->extraEquivalentObjectId = pt->t.byteCount;
- } else {
- t->extraFileLength = pt->t.byteCount;
- }
- }
}
yaffs_DumpPackedTags2(pt);
yaffs_DumpTags2(t);
}
+
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