X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_packedtags2.c;h=6c12aed2b9ddabfe3ae7ffe8641553c7520eb10e;hp=f8ae94ccddb479854f8398e6f8fc3949979180c1;hb=239fd86892c59299042eabf617309a2d2ddf700b;hpb=0333f489a25b05a4c0176258204eee1db9e8c9e0

diff --git a/yaffs_packedtags2.c b/yaffs_packedtags2.c
index f8ae94c..6c12aed 100644
--- a/yaffs_packedtags2.c
+++ b/yaffs_packedtags2.c
@@ -25,7 +25,7 @@
  * This is defined by having the EXTRA_HEADER_INFO_FLAG set.
  */
 
-/* Extra flags applied to chunkId */
+/* Extra flags applied to chunk_id */
 
 #define EXTRA_HEADER_INFO_FLAG	0x80000000
 #define EXTRA_SHRINK_FLAG	0x40000000
@@ -38,161 +38,160 @@
 #define EXTRA_OBJECT_TYPE_SHIFT (28)
 #define EXTRA_OBJECT_TYPE_MASK  ((0x0F) << EXTRA_OBJECT_TYPE_SHIFT)
 
-
-static void yaffs_DumpPackedTags2TagsPart(const yaffs_PackedTags2TagsPart *ptt)
+static void yaffs_dump_packed_tags2_tags_only(const struct
+					      yaffs_packed_tags2_tags_only *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));
+	   ptt->obj_id, ptt->chunk_id, ptt->n_bytes, ptt->seq_number));
 }
-static void yaffs_DumpPackedTags2(const yaffs_PackedTags2 *pt)
+
+static void yaffs_dump_packed_tags2(const struct yaffs_packed_tags2 *pt)
 {
-	yaffs_DumpPackedTags2TagsPart(&pt->t);
+	yaffs_dump_packed_tags2_tags_only(&pt->t);
 }
 
-static void yaffs_DumpTags2(const yaffs_ExtendedTags *t)
+static void yaffs_dump_tags2(const struct yaffs_ext_tags *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"
-	    TENDSTR), t->eccResult, t->blockBad, t->chunkUsed, t->objectId,
-	   t->chunkId, t->byteCount, t->chunkDeleted, t->serialNumber,
-	   t->sequenceNumber));
+	    TENDSTR), t->ecc_result, t->block_bad, t->chunk_used, t->obj_id,
+	   t->chunk_id, t->n_bytes, t->is_deleted, t->serial_number,
+	   t->seq_number));
 
 }
 
-void yaffs_PackTags2TagsPart(yaffs_PackedTags2TagsPart *ptt,
-		const yaffs_ExtendedTags *t)
+void yaffs_pack_tags2_tags_only(struct yaffs_packed_tags2_tags_only *ptt,
+				const struct yaffs_ext_tags *t)
 {
-	ptt->chunkId = t->chunkId;
-	ptt->sequenceNumber = t->sequenceNumber;
-	ptt->byteCount = t->byteCount;
-	ptt->objectId = t->objectId;
+	ptt->chunk_id = t->chunk_id;
+	ptt->seq_number = t->seq_number;
+	ptt->n_bytes = t->n_bytes;
+	ptt->obj_id = t->obj_id;
 
-	if (t->chunkId == 0 && t->extraHeaderInfoAvailable) {
+	if (t->chunk_id == 0 && t->extra_available) {
 		/* Store the extra header info instead */
-		/* We save the parent object in the chunkId */
-		ptt->chunkId = EXTRA_HEADER_INFO_FLAG
-			| t->extraParentObjectId;
-		if (t->extraIsShrinkHeader)
-			ptt->chunkId |= EXTRA_SHRINK_FLAG;
-		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)
-			ptt->byteCount = t->extraEquivalentObjectId;
-		else if (t->extraObjectType == YAFFS_OBJECT_TYPE_FILE)
-			ptt->byteCount = t->extraFileLength;
+		/* We save the parent object in the chunk_id */
+		ptt->chunk_id = EXTRA_HEADER_INFO_FLAG | t->extra_parent_id;
+		if (t->extra_is_shrink)
+			ptt->chunk_id |= EXTRA_SHRINK_FLAG;
+		if (t->extra_shadows)
+			ptt->chunk_id |= EXTRA_SHADOWS_FLAG;
+
+		ptt->obj_id &= ~EXTRA_OBJECT_TYPE_MASK;
+		ptt->obj_id |= (t->extra_obj_type << EXTRA_OBJECT_TYPE_SHIFT);
+
+		if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK)
+			ptt->n_bytes = t->extra_equiv_id;
+		else if (t->extra_obj_type == YAFFS_OBJECT_TYPE_FILE)
+			ptt->n_bytes = t->extra_length;
 		else
-			ptt->byteCount = 0;
+			ptt->n_bytes = 0;
 	}
 
-	yaffs_DumpPackedTags2TagsPart(ptt);
-	yaffs_DumpTags2(t);
+	yaffs_dump_packed_tags2_tags_only(ptt);
+	yaffs_dump_tags2(t);
 }
 
-
-void yaffs_PackTags2(yaffs_PackedTags2 *pt, const yaffs_ExtendedTags *t, int tagsECC)
+void yaffs_pack_tags2(struct yaffs_packed_tags2 *pt,
+		      const struct yaffs_ext_tags *t, int tags_ecc)
 {
-	yaffs_PackTags2TagsPart(&pt->t, t);
+	yaffs_pack_tags2_tags_only(&pt->t, t);
 
-	if(tagsECC)
-		yaffs_ECCCalculateOther((unsigned char *)&pt->t,
-					sizeof(yaffs_PackedTags2TagsPart),
-					&pt->ecc);
+	if (tags_ecc)
+		yaffs_ecc_calc_other((unsigned char *)&pt->t,
+				     sizeof(struct
+					    yaffs_packed_tags2_tags_only),
+				     &pt->ecc);
 }
 
-
-void yaffs_UnpackTags2TagsPart(yaffs_ExtendedTags *t,
-		yaffs_PackedTags2TagsPart *ptt)
+void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t,
+				  struct yaffs_packed_tags2_tags_only *ptt)
 {
 
-	memset(t, 0, sizeof(yaffs_ExtendedTags));
+	memset(t, 0, sizeof(struct yaffs_ext_tags));
 
-	yaffs_InitialiseTags(t);
+	yaffs_init_tags(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;
+	if (ptt->seq_number != 0xFFFFFFFF) {
+		t->block_bad = 0;
+		t->chunk_used = 1;
+		t->obj_id = ptt->obj_id;
+		t->chunk_id = ptt->chunk_id;
+		t->n_bytes = ptt->n_bytes;
+		t->is_deleted = 0;
+		t->serial_number = 0;
+		t->seq_number = ptt->seq_number;
 
 		/* 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;
+		if (ptt->chunk_id & EXTRA_HEADER_INFO_FLAG) {
+			t->chunk_id = 0;
+			t->n_bytes = 0;
+
+			t->extra_available = 1;
+			t->extra_parent_id =
+			    ptt->chunk_id & (~(ALL_EXTRA_FLAGS));
+			t->extra_is_shrink =
+			    (ptt->chunk_id & EXTRA_SHRINK_FLAG) ? 1 : 0;
+			t->extra_shadows =
+			    (ptt->chunk_id & EXTRA_SHADOWS_FLAG) ? 1 : 0;
+			t->extra_obj_type =
+			    ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT;
+			t->obj_id &= ~EXTRA_OBJECT_TYPE_MASK;
+
+			if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK)
+				t->extra_equiv_id = ptt->n_bytes;
 			else
-				t->extraFileLength = ptt->byteCount;
+				t->extra_length = ptt->n_bytes;
 		}
 	}
 
-	yaffs_DumpPackedTags2TagsPart(ptt);
-	yaffs_DumpTags2(t);
+	yaffs_dump_packed_tags2_tags_only(ptt);
+	yaffs_dump_tags2(t);
 
 }
 
-
-void yaffs_UnpackTags2(yaffs_ExtendedTags *t, yaffs_PackedTags2 *pt, int tagsECC)
+void yaffs_unpack_tags2(struct yaffs_ext_tags *t, struct yaffs_packed_tags2 *pt,
+			int tags_ecc)
 {
 
-	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_NO_ERROR;
+	enum yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
 
-	if (pt->t.sequenceNumber != 0xFFFFFFFF &&
-	    tagsECC){
+	if (pt->t.seq_number != 0xFFFFFFFF && tags_ecc) {
 		/* Chunk is in use and we need to do ECC */
-		
-		yaffs_ECCOther ecc;
+
+		struct yaffs_ecc_other 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);
+		yaffs_ecc_calc_other((unsigned char *)&pt->t,
+				     sizeof(struct
+					    yaffs_packed_tags2_tags_only),
+				     &ecc);
+		result =
+		    yaffs_ecc_correct_other((unsigned char *)&pt->t,
+					    sizeof(struct
+						   yaffs_packed_tags2_tags_only),
+					    &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;
+		case 0:
+			ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
+			break;
+		case 1:
+			ecc_result = YAFFS_ECC_RESULT_FIXED;
+			break;
+		case -1:
+			ecc_result = YAFFS_ECC_RESULT_UNFIXED;
+			break;
+		default:
+			ecc_result = YAFFS_ECC_RESULT_UNKNOWN;
 		}
 	}
 
-	yaffs_UnpackTags2TagsPart(t, &pt->t);
+	yaffs_unpack_tags2_tags_only(t, &pt->t);
 
-	t->eccResult = eccResult;
+	t->ecc_result = ecc_result;
 
-	yaffs_DumpPackedTags2(pt);
-	yaffs_DumpTags2(t);
+	yaffs_dump_packed_tags2(pt);
+	yaffs_dump_tags2(t);
 }
-