1 files changed, 189 insertions, 191 deletions

diff --git a/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c b/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c
index 402537fb4..c04a2fb3b 100644
--- a/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c
+++ b/target/linux/generic/files/fs/yaffs2/yaffs_tagscompat.c
@@ -1,7 +1,7 @@
 /*
  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
  *
- * Copyright (C) 2002-2007 Aleph One Ltd.
+ * Copyright (C) 2002-2010 Aleph One Ltd.
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
@@ -15,19 +15,20 @@
 #include "yaffs_tagscompat.h"
 #include "yaffs_ecc.h"
 #include "yaffs_getblockinfo.h"
+#include "yaffs_trace.h"
 
-static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND);
+static void yaffs_handle_rd_data_error(yaffs_dev_t *dev, int nand_chunk);
 #ifdef NOTYET
-static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND);
-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
+static void yaffs_check_written_block(yaffs_dev_t *dev, int nand_chunk);
+static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk,
 				     const __u8 *data,
-				     const yaffs_Spare *spare);
-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
-				    const yaffs_Spare *spare);
-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND);
+				     const yaffs_spare *spare);
+static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk,
+				    const yaffs_spare *spare);
+static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk);
 #endif
 
-static const char yaffs_countBitsTable[256] = {
+static const char yaffs_count_bits_table[256] = {
 	0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
 	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
 	1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
@@ -46,26 +47,26 @@ static const char yaffs_countBitsTable[256] = {
 	4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8
 };
 
-int yaffs_CountBits(__u8 x)
+int yaffs_count_bits(__u8 x)
 {
 	int retVal;
-	retVal = yaffs_countBitsTable[x];
+	retVal = yaffs_count_bits_table[x];
 	return retVal;
 }
 
 /********** Tags ECC calculations  *********/
 
-void yaffs_CalcECC(const __u8 *data, yaffs_Spare *spare)
+void yaffs_calc_ecc(const __u8 *data, yaffs_spare *spare)
 {
-	yaffs_ECCCalculate(data, spare->ecc1);
-	yaffs_ECCCalculate(&data[256], spare->ecc2);
+	yaffs_ecc_cacl(data, spare->ecc1);
+	yaffs_ecc_cacl(&data[256], spare->ecc2);
 }
 
-void yaffs_CalcTagsECC(yaffs_Tags *tags)
+void yaffs_calc_tags_ecc(yaffs_tags_t *tags)
 {
 	/* Calculate an ecc */
 
-	unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes;
+	unsigned char *b = ((yaffs_tags_union_t *) tags)->as_bytes;
 	unsigned i, j;
 	unsigned ecc = 0;
 	unsigned bit = 0;
@@ -84,24 +85,24 @@ void yaffs_CalcTagsECC(yaffs_Tags *tags)
 
 }
 
-int yaffs_CheckECCOnTags(yaffs_Tags *tags)
+int yaffs_check_tags_ecc(yaffs_tags_t *tags)
 {
 	unsigned ecc = tags->ecc;
 
-	yaffs_CalcTagsECC(tags);
+	yaffs_calc_tags_ecc(tags);
 
 	ecc ^= tags->ecc;
 
 	if (ecc && ecc <= 64) {
 		/* TODO: Handle the failure better. Retire? */
-		unsigned char *b = ((yaffs_TagsUnion *) tags)->asBytes;
+		unsigned char *b = ((yaffs_tags_union_t *) tags)->as_bytes;
 
 		ecc--;
 
 		b[ecc / 8] ^= (1 << (ecc & 7));
 
 		/* Now recvalc the ecc */
-		yaffs_CalcTagsECC(tags);
+		yaffs_calc_tags_ecc(tags);
 
 		return 1;	/* recovered error */
 	} else if (ecc) {
@@ -115,76 +116,73 @@ int yaffs_CheckECCOnTags(yaffs_Tags *tags)
 
 /********** Tags **********/
 
-static void yaffs_LoadTagsIntoSpare(yaffs_Spare *sparePtr,
-				yaffs_Tags *tagsPtr)
+static void yaffs_load_tags_to_spare(yaffs_spare *sparePtr,
+				yaffs_tags_t *tagsPtr)
 {
-	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
-
-	yaffs_CalcTagsECC(tagsPtr);
-
-	sparePtr->tagByte0 = tu->asBytes[0];
-	sparePtr->tagByte1 = tu->asBytes[1];
-	sparePtr->tagByte2 = tu->asBytes[2];
-	sparePtr->tagByte3 = tu->asBytes[3];
-	sparePtr->tagByte4 = tu->asBytes[4];
-	sparePtr->tagByte5 = tu->asBytes[5];
-	sparePtr->tagByte6 = tu->asBytes[6];
-	sparePtr->tagByte7 = tu->asBytes[7];
+	yaffs_tags_union_t *tu = (yaffs_tags_union_t *) tagsPtr;
+
+	yaffs_calc_tags_ecc(tagsPtr);
+
+	sparePtr->tb0 = tu->as_bytes[0];
+	sparePtr->tb1 = tu->as_bytes[1];
+	sparePtr->tb2 = tu->as_bytes[2];
+	sparePtr->tb3 = tu->as_bytes[3];
+	sparePtr->tb4 = tu->as_bytes[4];
+	sparePtr->tb5 = tu->as_bytes[5];
+	sparePtr->tb6 = tu->as_bytes[6];
+	sparePtr->tb7 = tu->as_bytes[7];
 }
 
-static void yaffs_GetTagsFromSpare(yaffs_Device *dev, yaffs_Spare *sparePtr,
-				yaffs_Tags *tagsPtr)
+static void yaffs_get_tags_from_spare(yaffs_dev_t *dev, yaffs_spare *sparePtr,
+				yaffs_tags_t *tagsPtr)
 {
-	yaffs_TagsUnion *tu = (yaffs_TagsUnion *) tagsPtr;
+	yaffs_tags_union_t *tu = (yaffs_tags_union_t *) tagsPtr;
 	int result;
 
-	tu->asBytes[0] = sparePtr->tagByte0;
-	tu->asBytes[1] = sparePtr->tagByte1;
-	tu->asBytes[2] = sparePtr->tagByte2;
-	tu->asBytes[3] = sparePtr->tagByte3;
-	tu->asBytes[4] = sparePtr->tagByte4;
-	tu->asBytes[5] = sparePtr->tagByte5;
-	tu->asBytes[6] = sparePtr->tagByte6;
-	tu->asBytes[7] = sparePtr->tagByte7;
+	tu->as_bytes[0] = sparePtr->tb0;
+	tu->as_bytes[1] = sparePtr->tb1;
+	tu->as_bytes[2] = sparePtr->tb2;
+	tu->as_bytes[3] = sparePtr->tb3;
+	tu->as_bytes[4] = sparePtr->tb4;
+	tu->as_bytes[5] = sparePtr->tb5;
+	tu->as_bytes[6] = sparePtr->tb6;
+	tu->as_bytes[7] = sparePtr->tb7;
 
-	result = yaffs_CheckECCOnTags(tagsPtr);
+	result = yaffs_check_tags_ecc(tagsPtr);
 	if (result > 0)
-		dev->tagsEccFixed++;
+		dev->n_tags_ecc_fixed++;
 	else if (result < 0)
-		dev->tagsEccUnfixed++;
+		dev->n_tags_ecc_unfixed++;
 }
 
-static void yaffs_SpareInitialise(yaffs_Spare *spare)
+static void yaffs_spare_init(yaffs_spare *spare)
 {
-	memset(spare, 0xFF, sizeof(yaffs_Spare));
+	memset(spare, 0xFF, sizeof(yaffs_spare));
 }
 
-static int yaffs_WriteChunkToNAND(struct yaffs_DeviceStruct *dev,
-				int chunkInNAND, const __u8 *data,
-				yaffs_Spare *spare)
+static int yaffs_wr_nand(struct yaffs_dev_s *dev,
+				int nand_chunk, const __u8 *data,
+				yaffs_spare *spare)
 {
-	if (chunkInNAND < dev->startBlock * dev->nChunksPerBlock) {
+	if (nand_chunk < dev->param.start_block * dev->param.chunks_per_block) {
 		T(YAFFS_TRACE_ERROR,
 		  (TSTR("**>> yaffs chunk %d is not valid" TENDSTR),
-		   chunkInNAND));
+		   nand_chunk));
 		return YAFFS_FAIL;
 	}
 
-	dev->nPageWrites++;
-	return dev->writeChunkToNAND(dev, chunkInNAND, data, spare);
+	return dev->param.write_chunk_fn(dev, nand_chunk, data, spare);
 }
 
-static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
-				   int chunkInNAND,
+static int yaffs_rd_chunk_nand(struct yaffs_dev_s *dev,
+				   int nand_chunk,
 				   __u8 *data,
-				   yaffs_Spare *spare,
-				   yaffs_ECCResult *eccResult,
+				   yaffs_spare *spare,
+				   yaffs_ecc_result *ecc_result,
 				   int doErrorCorrection)
 {
 	int retVal;
-	yaffs_Spare localSpare;
-
-	dev->nPageReads++;
+	yaffs_spare localSpare;
 
 	if (!spare && data) {
 		/* If we don't have a real spare, then we use a local one. */
@@ -192,107 +190,107 @@ static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
 		spare = &localSpare;
 	}
 
-	if (!dev->useNANDECC) {
-		retVal = dev->readChunkFromNAND(dev, chunkInNAND, data, spare);
+	if (!dev->param.use_nand_ecc) {
+		retVal = dev->param.read_chunk_fn(dev, nand_chunk, data, spare);
 		if (data && doErrorCorrection) {
 			/* Do ECC correction */
 			/* Todo handle any errors */
-			int eccResult1, eccResult2;
+			int ecc_result1, ecc_result2;
 			__u8 calcEcc[3];
 
-			yaffs_ECCCalculate(data, calcEcc);
-			eccResult1 =
-			    yaffs_ECCCorrect(data, spare->ecc1, calcEcc);
-			yaffs_ECCCalculate(&data[256], calcEcc);
-			eccResult2 =
-			    yaffs_ECCCorrect(&data[256], spare->ecc2, calcEcc);
+			yaffs_ecc_cacl(data, calcEcc);
+			ecc_result1 =
+			    yaffs_ecc_correct(data, spare->ecc1, calcEcc);
+			yaffs_ecc_cacl(&data[256], calcEcc);
+			ecc_result2 =
+			    yaffs_ecc_correct(&data[256], spare->ecc2, calcEcc);
 
-			if (eccResult1 > 0) {
+			if (ecc_result1 > 0) {
 				T(YAFFS_TRACE_ERROR,
 				  (TSTR
 				   ("**>>yaffs ecc error fix performed on chunk %d:0"
-				    TENDSTR), chunkInNAND));
-				dev->eccFixed++;
-			} else if (eccResult1 < 0) {
+				    TENDSTR), nand_chunk));
+				dev->n_ecc_fixed++;
+			} else if (ecc_result1 < 0) {
 				T(YAFFS_TRACE_ERROR,
 				  (TSTR
 				   ("**>>yaffs ecc error unfixed on chunk %d:0"
-				    TENDSTR), chunkInNAND));
-				dev->eccUnfixed++;
+				    TENDSTR), nand_chunk));
+				dev->n_ecc_unfixed++;
 			}
 
-			if (eccResult2 > 0) {
+			if (ecc_result2 > 0) {
 				T(YAFFS_TRACE_ERROR,
 				  (TSTR
 				   ("**>>yaffs ecc error fix performed on chunk %d:1"
-				    TENDSTR), chunkInNAND));
-				dev->eccFixed++;
-			} else if (eccResult2 < 0) {
+				    TENDSTR), nand_chunk));
+				dev->n_ecc_fixed++;
+			} else if (ecc_result2 < 0) {
 				T(YAFFS_TRACE_ERROR,
 				  (TSTR
 				   ("**>>yaffs ecc error unfixed on chunk %d:1"
-				    TENDSTR), chunkInNAND));
-				dev->eccUnfixed++;
+				    TENDSTR), nand_chunk));
+				dev->n_ecc_unfixed++;
 			}
 
-			if (eccResult1 || eccResult2) {
+			if (ecc_result1 || ecc_result2) {
 				/* We had a data problem on this page */
-				yaffs_HandleReadDataError(dev, chunkInNAND);
+				yaffs_handle_rd_data_error(dev, nand_chunk);
 			}
 
-			if (eccResult1 < 0 || eccResult2 < 0)
-				*eccResult = YAFFS_ECC_RESULT_UNFIXED;
-			else if (eccResult1 > 0 || eccResult2 > 0)
-				*eccResult = YAFFS_ECC_RESULT_FIXED;
+			if (ecc_result1 < 0 || ecc_result2 < 0)
+				*ecc_result = YAFFS_ECC_RESULT_UNFIXED;
+			else if (ecc_result1 > 0 || ecc_result2 > 0)
+				*ecc_result = YAFFS_ECC_RESULT_FIXED;
 			else
-				*eccResult = YAFFS_ECC_RESULT_NO_ERROR;
+				*ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
 		}
 	} else {
 		/* Must allocate enough memory for spare+2*sizeof(int) */
 		/* for ecc results from device. */
-		struct yaffs_NANDSpare nspare;
+		struct yaffs_nand_spare nspare;
 
 		memset(&nspare, 0, sizeof(nspare));
 
-		retVal = dev->readChunkFromNAND(dev, chunkInNAND, data,
-					(yaffs_Spare *) &nspare);
-		memcpy(spare, &nspare, sizeof(yaffs_Spare));
+		retVal = dev->param.read_chunk_fn(dev, nand_chunk, data,
+					(yaffs_spare *) &nspare);
+		memcpy(spare, &nspare, sizeof(yaffs_spare));
 		if (data && doErrorCorrection) {
 			if (nspare.eccres1 > 0) {
 				T(YAFFS_TRACE_ERROR,
 				  (TSTR
 				   ("**>>mtd ecc error fix performed on chunk %d:0"
-				    TENDSTR), chunkInNAND));
+				    TENDSTR), nand_chunk));
 			} else if (nspare.eccres1 < 0) {
 				T(YAFFS_TRACE_ERROR,
 				  (TSTR
 				   ("**>>mtd ecc error unfixed on chunk %d:0"
-				    TENDSTR), chunkInNAND));
+				    TENDSTR), nand_chunk));
 			}
 
 			if (nspare.eccres2 > 0) {
 				T(YAFFS_TRACE_ERROR,
 				  (TSTR
 				   ("**>>mtd ecc error fix performed on chunk %d:1"
-				    TENDSTR), chunkInNAND));
+				    TENDSTR), nand_chunk));
 			} else if (nspare.eccres2 < 0) {
 				T(YAFFS_TRACE_ERROR,
 				  (TSTR
 				   ("**>>mtd ecc error unfixed on chunk %d:1"
-				    TENDSTR), chunkInNAND));
+				    TENDSTR), nand_chunk));
 			}
 
 			if (nspare.eccres1 || nspare.eccres2) {
 				/* We had a data problem on this page */
-				yaffs_HandleReadDataError(dev, chunkInNAND);
+				yaffs_handle_rd_data_error(dev, nand_chunk);
 			}
 
 			if (nspare.eccres1 < 0 || nspare.eccres2 < 0)
-				*eccResult = YAFFS_ECC_RESULT_UNFIXED;
+				*ecc_result = YAFFS_ECC_RESULT_UNFIXED;
 			else if (nspare.eccres1 > 0 || nspare.eccres2 > 0)
-				*eccResult = YAFFS_ECC_RESULT_FIXED;
+				*ecc_result = YAFFS_ECC_RESULT_FIXED;
 			else
-				*eccResult = YAFFS_ECC_RESULT_NO_ERROR;
+				*ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
 
 		}
 	}
@@ -300,17 +298,17 @@ static int yaffs_ReadChunkFromNAND(struct yaffs_DeviceStruct *dev,
 }
 
 #ifdef NOTYET
-static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
-				  int chunkInNAND)
+static int yaffs_check_chunk_erased(struct yaffs_dev_s *dev,
+				  int nand_chunk)
 {
 	static int init;
 	static __u8 cmpbuf[YAFFS_BYTES_PER_CHUNK];
 	static __u8 data[YAFFS_BYTES_PER_CHUNK];
 	/* Might as well always allocate the larger size for */
-	/* dev->useNANDECC == true; */
-	static __u8 spare[sizeof(struct yaffs_NANDSpare)];
+	/* dev->param.use_nand_ecc == true; */
+	static __u8 spare[sizeof(struct yaffs_nand_spare)];
 
-	dev->readChunkFromNAND(dev, chunkInNAND, data, (yaffs_Spare *) spare);
+	dev->param.read_chunk_fn(dev, nand_chunk, data, (yaffs_spare *) spare);
 
 	if (!init) {
 		memset(cmpbuf, 0xff, YAFFS_BYTES_PER_CHUNK);
@@ -331,14 +329,14 @@ static int yaffs_CheckChunkErased(struct yaffs_DeviceStruct *dev,
  * Functions for robustisizing
  */
 
-static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND)
+static void yaffs_handle_rd_data_error(yaffs_dev_t *dev, int nand_chunk)
 {
-	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
+	int flash_block = nand_chunk / dev->param.chunks_per_block;
 
 	/* Mark the block for retirement */
-	yaffs_GetBlockInfo(dev, blockInNAND + dev->blockOffset)->needsRetiring = 1;
+	yaffs_get_block_info(dev, flash_block + dev->block_offset)->needs_retiring = 1;
 	T(YAFFS_TRACE_ERROR | YAFFS_TRACE_BAD_BLOCKS,
-	  (TSTR("**>>Block %d marked for retirement" TENDSTR), blockInNAND));
+	  (TSTR("**>>Block %d marked for retirement" TENDSTR), flash_block));
 
 	/* TODO:
 	 * Just do a garbage collection on the affected block
@@ -348,44 +346,44 @@ static void yaffs_HandleReadDataError(yaffs_Device *dev, int chunkInNAND)
 }
 
 #ifdef NOTYET
-static void yaffs_CheckWrittenBlock(yaffs_Device *dev, int chunkInNAND)
+static void yaffs_check_written_block(yaffs_dev_t *dev, int nand_chunk)
 {
 }
 
-static void yaffs_HandleWriteChunkOk(yaffs_Device *dev, int chunkInNAND,
+static void yaffs_handle_chunk_wr_ok(yaffs_dev_t *dev, int nand_chunk,
 				     const __u8 *data,
-				     const yaffs_Spare *spare)
+				     const yaffs_spare *spare)
 {
 }
 
-static void yaffs_HandleUpdateChunk(yaffs_Device *dev, int chunkInNAND,
-				    const yaffs_Spare *spare)
+static void yaffs_handle_chunk_update(yaffs_dev_t *dev, int nand_chunk,
+				    const yaffs_spare *spare)
 {
 }
 
-static void yaffs_HandleWriteChunkError(yaffs_Device *dev, int chunkInNAND)
+static void yaffs_handle_chunk_wr_error(yaffs_dev_t *dev, int nand_chunk)
 {
-	int blockInNAND = chunkInNAND / dev->nChunksPerBlock;
+	int flash_block = nand_chunk / dev->param.chunks_per_block;
 
 	/* Mark the block for retirement */
-	yaffs_GetBlockInfo(dev, blockInNAND)->needsRetiring = 1;
+	yaffs_get_block_info(dev, flash_block)->needs_retiring = 1;
 	/* Delete the chunk */
-	yaffs_DeleteChunk(dev, chunkInNAND, 1, __LINE__);
+	yaffs_chunk_del(dev, nand_chunk, 1, __LINE__);
 }
 
-static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1,
-			       const yaffs_Spare *s0, const yaffs_Spare *s1)
+static int yaffs_verify_cmp(const __u8 *d0, const __u8 *d1,
+			       const yaffs_spare *s0, const yaffs_spare *s1)
 {
 
 	if (memcmp(d0, d1, YAFFS_BYTES_PER_CHUNK) != 0 ||
-	    s0->tagByte0 != s1->tagByte0 ||
-	    s0->tagByte1 != s1->tagByte1 ||
-	    s0->tagByte2 != s1->tagByte2 ||
-	    s0->tagByte3 != s1->tagByte3 ||
-	    s0->tagByte4 != s1->tagByte4 ||
-	    s0->tagByte5 != s1->tagByte5 ||
-	    s0->tagByte6 != s1->tagByte6 ||
-	    s0->tagByte7 != s1->tagByte7 ||
+	    s0->tb0 != s1->tb0 ||
+	    s0->tb1 != s1->tb1 ||
+	    s0->tb2 != s1->tb2 ||
+	    s0->tb3 != s1->tb3 ||
+	    s0->tb4 != s1->tb4 ||
+	    s0->tb5 != s1->tb5 ||
+	    s0->tb6 != s1->tb6 ||
+	    s0->tb7 != s1->tb7 ||
 	    s0->ecc1[0] != s1->ecc1[0] ||
 	    s0->ecc1[1] != s1->ecc1[1] ||
 	    s0->ecc1[2] != s1->ecc1[2] ||
@@ -398,53 +396,53 @@ static int yaffs_VerifyCompare(const __u8 *d0, const __u8 *d1,
 }
 #endif				/* NOTYET */
 
-int yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(yaffs_Device *dev,
-						int chunkInNAND,
+int yaffs_tags_compat_wr(yaffs_dev_t *dev,
+						int nand_chunk,
 						const __u8 *data,
-						const yaffs_ExtendedTags *eTags)
+						const yaffs_ext_tags *eTags)
 {
-	yaffs_Spare spare;
-	yaffs_Tags tags;
+	yaffs_spare spare;
+	yaffs_tags_t tags;
 
-	yaffs_SpareInitialise(&spare);
+	yaffs_spare_init(&spare);
 
-	if (eTags->chunkDeleted)
-		spare.pageStatus = 0;
+	if (eTags->is_deleted)
+		spare.page_status = 0;
 	else {
-		tags.objectId = eTags->objectId;
-		tags.chunkId = eTags->chunkId;
+		tags.obj_id = eTags->obj_id;
+		tags.chunk_id = eTags->chunk_id;
 
-		tags.byteCountLSB = eTags->byteCount & 0x3ff;
+		tags.n_bytes_lsb = eTags->n_bytes & 0x3ff;
 
-		if (dev->nDataBytesPerChunk >= 1024)
-			tags.byteCountMSB = (eTags->byteCount >> 10) & 3;
+		if (dev->data_bytes_per_chunk >= 1024)
+			tags.n_bytes_msb = (eTags->n_bytes >> 10) & 3;
 		else
-			tags.byteCountMSB = 3;
+			tags.n_bytes_msb = 3;
 
 
-		tags.serialNumber = eTags->serialNumber;
+		tags.serial_number = eTags->serial_number;
 
-		if (!dev->useNANDECC && data)
-			yaffs_CalcECC(data, &spare);
+		if (!dev->param.use_nand_ecc && data)
+			yaffs_calc_ecc(data, &spare);
 
-		yaffs_LoadTagsIntoSpare(&spare, &tags);
+		yaffs_load_tags_to_spare(&spare, &tags);
 
 	}
 
-	return yaffs_WriteChunkToNAND(dev, chunkInNAND, data, &spare);
+	return yaffs_wr_nand(dev, nand_chunk, data, &spare);
 }
 
-int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
-						     int chunkInNAND,
+int yaffs_tags_compat_rd(yaffs_dev_t *dev,
+						     int nand_chunk,
 						     __u8 *data,
-						     yaffs_ExtendedTags *eTags)
+						     yaffs_ext_tags *eTags)
 {
 
-	yaffs_Spare spare;
-	yaffs_Tags tags;
-	yaffs_ECCResult eccResult = YAFFS_ECC_RESULT_UNKNOWN;
+	yaffs_spare spare;
+	yaffs_tags_t tags;
+	yaffs_ecc_result ecc_result = YAFFS_ECC_RESULT_UNKNOWN;
 
-	static yaffs_Spare spareFF;
+	static yaffs_spare spareFF;
 	static int init;
 
 	if (!init) {
@@ -452,33 +450,33 @@ int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
 		init = 1;
 	}
 
-	if (yaffs_ReadChunkFromNAND
-	    (dev, chunkInNAND, data, &spare, &eccResult, 1)) {
+	if (yaffs_rd_chunk_nand
+	    (dev, nand_chunk, data, &spare, &ecc_result, 1)) {
 		/* eTags may be NULL */
 		if (eTags) {
 
 			int deleted =
-			    (yaffs_CountBits(spare.pageStatus) < 7) ? 1 : 0;
+			    (yaffs_count_bits(spare.page_status) < 7) ? 1 : 0;
 
-			eTags->chunkDeleted = deleted;
-			eTags->eccResult = eccResult;
-			eTags->blockBad = 0;	/* We're reading it */
+			eTags->is_deleted = deleted;
+			eTags->ecc_result = ecc_result;
+			eTags->block_bad = 0;	/* We're reading it */
 			/* therefore it is not a bad block */
-			eTags->chunkUsed =
+			eTags->chunk_used =
 			    (memcmp(&spareFF, &spare, sizeof(spareFF)) !=
 			     0) ? 1 : 0;
 
-			if (eTags->chunkUsed) {
-				yaffs_GetTagsFromSpare(dev, &spare, &tags);
+			if (eTags->chunk_used) {
+				yaffs_get_tags_from_spare(dev, &spare, &tags);
 
-				eTags->objectId = tags.objectId;
-				eTags->chunkId = tags.chunkId;
-				eTags->byteCount = tags.byteCountLSB;
+				eTags->obj_id = tags.obj_id;
+				eTags->chunk_id = tags.chunk_id;
+				eTags->n_bytes = tags.n_bytes_lsb;
 
-				if (dev->nDataBytesPerChunk >= 1024)
-					eTags->byteCount |= (((unsigned) tags.byteCountMSB) << 10);
+				if (dev->data_bytes_per_chunk >= 1024)
+					eTags->n_bytes |= (((unsigned) tags.n_bytes_msb) << 10);
 
-				eTags->serialNumber = tags.serialNumber;
+				eTags->serial_number = tags.serial_number;
 			}
 		}
 
@@ -488,49 +486,49 @@ int yaffs_TagsCompatabilityReadChunkWithTagsFromNAND(yaffs_Device *dev,
 	}
 }
 
-int yaffs_TagsCompatabilityMarkNANDBlockBad(struct yaffs_DeviceStruct *dev,
-					    int blockInNAND)
+int yaffs_tags_compat_mark_bad(struct yaffs_dev_s *dev,
+					    int flash_block)
 {
 
-	yaffs_Spare spare;
+	yaffs_spare spare;
 
-	memset(&spare, 0xff, sizeof(yaffs_Spare));
+	memset(&spare, 0xff, sizeof(yaffs_spare));
 
-	spare.blockStatus = 'Y';
+	spare.block_status = 'Y';
 
-	yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock, NULL,
+	yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block, NULL,
 			       &spare);
-	yaffs_WriteChunkToNAND(dev, blockInNAND * dev->nChunksPerBlock + 1,
+	yaffs_wr_nand(dev, flash_block * dev->param.chunks_per_block + 1,
 			       NULL, &spare);
 
 	return YAFFS_OK;
 
 }
 
-int yaffs_TagsCompatabilityQueryNANDBlock(struct yaffs_DeviceStruct *dev,
-					  int blockNo,
-					  yaffs_BlockState *state,
-					  __u32 *sequenceNumber)
+int yaffs_tags_compat_query_block(struct yaffs_dev_s *dev,
+					  int block_no,
+					  yaffs_block_state_t *state,
+					  __u32 *seq_number)
 {
 
-	yaffs_Spare spare0, spare1;
-	static yaffs_Spare spareFF;
+	yaffs_spare spare0, spare1;
+	static yaffs_spare spareFF;
 	static int init;
-	yaffs_ECCResult dummy;
+	yaffs_ecc_result dummy;
 
 	if (!init) {
 		memset(&spareFF, 0xFF, sizeof(spareFF));
 		init = 1;
 	}
 
-	*sequenceNumber = 0;
+	*seq_number = 0;
 
-	yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock, NULL,
+	yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block, NULL,
 				&spare0, &dummy, 1);
-	yaffs_ReadChunkFromNAND(dev, blockNo * dev->nChunksPerBlock + 1, NULL,
+	yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block + 1, NULL,
 				&spare1, &dummy, 1);
 
-	if (yaffs_CountBits(spare0.blockStatus & spare1.blockStatus) < 7)
+	if (yaffs_count_bits(spare0.block_status & spare1.block_status) < 7)
 		*state = YAFFS_BLOCK_STATE_DEAD;
 	else if (memcmp(&spareFF, &spare0, sizeof(spareFF)) == 0)
 		*state = YAFFS_BLOCK_STATE_EMPTY;