X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_packedtags2.c;h=e33e8a3ac37f1d3e118deb95624cb1243d6b5b29;hp=3f9a815915894a75f46a2b0ab172c82040d92f30;hb=7f0f2c68474e11183cfbaebfd7c21ba48228f05e;hpb=60882d1d699c66850dee55278ba840744b5f87a3 diff --git a/yaffs_packedtags2.c b/yaffs_packedtags2.c index 3f9a815..e33e8a3 100644 --- a/yaffs_packedtags2.c +++ b/yaffs_packedtags2.c @@ -13,6 +13,7 @@ #include "yaffs_packedtags2.h" #include "yportenv.h" +#include "yaffs_trace.h" #include "yaffs_tagsvalidity.h" /* This code packs a set of extended tags into a binary structure for @@ -38,19 +39,19 @@ #define EXTRA_OBJECT_TYPE_MASK ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT) -static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart * ptt) +static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart *ptt) { T(YAFFS_TRACE_MTD, (TSTR("packed tags obj %d chunk %d byte %d seq %d" TENDSTR), ptt->objectId, ptt->chunkId, ptt->byteCount, ptt->sequenceNumber)); } -static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 * pt) +static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt) { yaffs_DumpPackedTags2TagsPart(&pt->t); } -static void yaffs_DumpTags2(const yaffs_ExtendedTags * t) +static void yaffs_DumpTags2(const yaffs_ExtendedTags *t) { T(YAFFS_TRACE_MTD, (TSTR @@ -61,7 +62,8 @@ static void yaffs_DumpTags2(const yaffs_ExtendedTags * t) } -void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart * ptt, const yaffs_ExtendedTags * t) +void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt, + const yaffs_ExtendedTags *t) { ptt->chunkId = t->chunkId; ptt->sequenceNumber = t->sequenceNumber; @@ -73,24 +75,21 @@ void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart * ptt, const yaffs_Extend /* We save the parent object in the chunkId */ ptt->chunkId = EXTRA_HEADER_INFO_FLAG | t->extraParentObjectId; - if (t->extraIsShrinkHeader) { + if (t->extraIsShrinkHeader) ptt->chunkId |= EXTRA_SHRINK_FLAG; - } - if (t->extraShadows) { + if (t->extraShadows) ptt->chunkId |= EXTRA_SHADOWS_FLAG; - } ptt->objectId &= ~EXTRA_OBJECT_TYPE_MASK; ptt->objectId |= (t->extraObjectType << EXTRA_OBJECT_TYPE_SHIFT); - if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) { + if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) ptt->byteCount = t->extraEquivalentObjectId; - } else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) { + else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE) ptt->byteCount = t->extraFileLength; - } else { + else ptt->byteCount = 0; - } } yaffs_DumpPackedTags2TagsPart(ptt); @@ -98,21 +97,19 @@ void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart * ptt, const yaffs_Extend } -void yaffs_PackTags2(yaffs_PackedTags2 * pt, const yaffs_ExtendedTags * t) +void yaffs_PackTags2(yaffs_Device *dev, yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t) { - yaffs_PackTags2TagsPart(&pt->t,t); + yaffs_PackTags2TagsPart(&pt->t, t); -#ifndef YAFFS_IGNORE_TAGS_ECC - { + if(!dev->noTagsECC) yaffs_ECCCalculateOther((unsigned char *)&pt->t, sizeof(yaffs_PackedTags2TagsPart), &pt->ecc); - } -#endif } -void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags * t, yaffs_PackedTags2TagsPart * ptt) +void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t, + yaffs_PackedTags2TagsPart *ptt) { memset(t, 0, sizeof(yaffs_ExtendedTags)); @@ -146,11 +143,10 @@ void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags * t, yaffs_PackedTags2TagsPart ptt->objectId >> EXTRA_OBJECT_TYPE_SHIFT; t->objectId &= ~EXTRA_OBJECT_TYPE_MASK; - if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) { + if (t->extraObjectType == YAFFS_OBJECT_TYPE_HARDLINK) t->extraEquivalentObjectId = ptt->byteCount; - } else { + else t->extraFileLength = ptt->byteCount; - } } } @@ -160,49 +156,43 @@ void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags * t, yaffs_PackedTags2TagsPart } -void yaffs_UnpackTags2(yaffs_ExtendedTags * t, yaffs_PackedTags2 * pt) +void yaffs_UnpackTags2(yaffs_Device *dev, yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt) { yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR; - - if (pt->t.sequenceNumber != 0xFFFFFFFF) { - /* Page is in use */ -#ifndef YAFFS_IGNORE_TAGS_ECC - { - yaffs_ECCOther ecc; - int result; - yaffs_ECCCalculateOther((unsigned char *)&pt->t, - sizeof - (yaffs_PackedTags2TagsPart), - &ecc); - result = - yaffs_ECCCorrectOther((unsigned char *)&pt->t, - sizeof - (yaffs_PackedTags2TagsPart), - &pt->ecc, &ecc); - switch(result){ - case 0: - eccResult = YAFFS_ECC_RESULT_NO_ERROR; - break; - case 1: - eccResult = YAFFS_ECC_RESULT_FIXED; - break; - case -1: - eccResult = YAFFS_ECC_RESULT_UNFIXED; - break; - default: - eccResult = YAFFS_ECC_RESULT_UNKNOWN; - } + + if (pt->t.sequenceNumber != 0xFFFFFFFF && + !dev->noTagsECC){ + /* Chunk is in use and we need to do ECC */ + + yaffs_ECCOther ecc; + int result; + yaffs_ECCCalculateOther((unsigned char *)&pt->t, + sizeof(yaffs_PackedTags2TagsPart), + &ecc); + result = yaffs_ECCCorrectOther((unsigned char *)&pt->t, + sizeof(yaffs_PackedTags2TagsPart), + &pt->ecc, &ecc); + switch (result) { + case 0: + eccResult = YAFFS_ECC_RESULT_NO_ERROR; + break; + case 1: + eccResult = YAFFS_ECC_RESULT_FIXED; + break; + case -1: + eccResult = YAFFS_ECC_RESULT_UNFIXED; + break; + default: + eccResult = YAFFS_ECC_RESULT_UNKNOWN; } -#endif } - yaffs_UnpackTags2TagsPart(t,&pt->t); - + yaffs_UnpackTags2TagsPart(t, &pt->t); + t->eccResult = eccResult; yaffs_DumpPackedTags2(pt); yaffs_DumpTags2(t); - }