X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_nand.c;h=4c1993bb7d2eed23c54e38ded284c062f93dc29e;hp=d721fa636bf7234c6c3319abdddc5588cb327c5a;hb=5587d9d89d5fb9c31fd723e85949f85da70ef3a9;hpb=470ba34cc1d593fca7cd98bb9a385a100f7cb3ac

diff --git a/yaffs_nand.c b/yaffs_nand.c
index d721fa6..4c1993b 100644
--- a/yaffs_nand.c
+++ b/yaffs_nand.c
@@ -1,7 +1,7 @@
 /*
  * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
  *
- * Copyright (C) 2002-2010 Aleph One Ltd.
+ * Copyright (C) 2002-2011 Aleph One Ltd.
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
@@ -13,128 +13,99 @@
 
 #include "yaffs_nand.h"
 #include "yaffs_tagscompat.h"
-#include "yaffs_tagsvalidity.h"
 
 #include "yaffs_getblockinfo.h"
+#include "yaffs_summary.h"
 
-int yaffs_rd_chunk_tags_nand(yaffs_dev_t *dev, int nand_chunk,
-					   __u8 *buffer,
-					   yaffs_ext_tags *tags)
+static int apply_chunk_offset(struct yaffs_dev *dev, int chunk)
 {
-	int result;
-	yaffs_ext_tags local_tags;
+	return chunk - dev->chunk_offset;
+}
 
-	int realigned_chunk = nand_chunk - dev->chunk_offset;
+int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk,
+			     u8 *buffer, struct yaffs_ext_tags *tags)
+{
+	int result;
+	struct yaffs_ext_tags local_tags;
+	int flash_chunk = apply_chunk_offset(dev, nand_chunk);
 
 	dev->n_page_reads++;
 
-	/* If there are no tags provided, use local tags to get prioritised gc working */
+	/* If there are no tags provided use local tags. */
 	if (!tags)
 		tags = &local_tags;
 
-	if (dev->param.read_chunk_tags_fn)
-		result = dev->param.read_chunk_tags_fn(dev, realigned_chunk, buffer,
-						      tags);
-	else
-		result = yaffs_tags_compat_rd(dev,
-									realigned_chunk,
-									buffer,
-									tags);
-	if (tags &&
-	   tags->ecc_result > YAFFS_ECC_RESULT_NO_ERROR) {
-
-		yaffs_block_info_t *bi;
-		bi = yaffs_get_block_info(dev, nand_chunk/dev->param.chunks_per_block);
+	result = dev->param.read_chunk_tags_fn(dev, flash_chunk, buffer, tags);
+	if (tags && tags->ecc_result > YAFFS_ECC_RESULT_NO_ERROR) {
+
+		struct yaffs_block_info *bi;
+		bi = yaffs_get_block_info(dev,
+					  nand_chunk /
+					  dev->param.chunks_per_block);
 		yaffs_handle_chunk_error(dev, bi);
 	}
-
 	return result;
 }
 
-int yaffs_wr_chunk_tags_nand(yaffs_dev_t *dev,
-						   int nand_chunk,
-						   const __u8 *buffer,
-						   yaffs_ext_tags *tags)
+int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev,
+				int nand_chunk,
+				const u8 *buffer, struct yaffs_ext_tags *tags)
 {
+	int result;
+	int flash_chunk = apply_chunk_offset(dev, nand_chunk);
 
 	dev->n_page_writes++;
 
-	nand_chunk -= dev->chunk_offset;
-
-
-	if (tags) {
-		tags->seq_number = dev->seq_number;
-		tags->chunk_used = 1;
-		if (!yaffs_validate_tags(tags)) {
-			T(YAFFS_TRACE_ERROR,
-			  (TSTR("Writing uninitialised tags" TENDSTR)));
-			YBUG();
-		}
-		T(YAFFS_TRACE_WRITE,
-		  (TSTR("Writing chunk %d tags %d %d" TENDSTR), nand_chunk,
-		   tags->obj_id, tags->chunk_id));
-	} else {
-		T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR)));
-		YBUG();
+	if (!tags) {
+		yaffs_trace(YAFFS_TRACE_ERROR, "Writing with no tags");
+		BUG();
+		return YAFFS_FAIL;
 	}
 
-	if (dev->param.write_chunk_tags_fn)
-		return dev->param.write_chunk_tags_fn(dev, nand_chunk, buffer,
-						     tags);
-	else
-		return yaffs_tags_compat_wr(dev,
-								       nand_chunk,
-								       buffer,
-								       tags);
-}
+	tags->seq_number = dev->seq_number;
+	tags->chunk_used = 1;
+	yaffs_trace(YAFFS_TRACE_WRITE,
+		"Writing chunk %d tags %d %d",
+		nand_chunk, tags->obj_id, tags->chunk_id);
 
-int yaffs_mark_bad(yaffs_dev_t *dev, int block_no)
-{
-	block_no -= dev->block_offset;
+	result = dev->param.write_chunk_tags_fn(dev, flash_chunk,
+							buffer, tags);
 
+	yaffs_summary_add(dev, tags, nand_chunk);
 
-	if (dev->param.bad_block_fn)
-		return dev->param.bad_block_fn(dev, block_no);
-	else
-		return yaffs_tags_compat_mark_bad(dev, block_no);
+	return result;
 }
 
-int yaffs_query_init_block_state(yaffs_dev_t *dev,
-						 int block_no,
-						 yaffs_block_state_t *state,
-						 __u32 *seq_number)
+int yaffs_mark_bad(struct yaffs_dev *dev, int block_no)
 {
 	block_no -= dev->block_offset;
-
-	if (dev->param.query_block_fn)
-		return dev->param.query_block_fn(dev, block_no, state, seq_number);
-	else
-		return yaffs_tags_compat_query_block(dev, block_no,
-							     state,
-							     seq_number);
+	dev->n_bad_markings++;
+	return dev->param.mark_bad_fn(dev, block_no);
 }
 
 
-int yaffs_erase_block(struct yaffs_dev_s *dev,
-				  int flash_block)
+int yaffs_query_init_block_state(struct yaffs_dev *dev,
+				 int block_no,
+				 enum yaffs_block_state *state,
+				 u32 *seq_number)
 {
-	int result;
+	block_no -= dev->block_offset;
+	return dev->param.query_block_fn(dev, block_no, state, seq_number);
+}
 
-	flash_block -= dev->block_offset;
+int yaffs_erase_block(struct yaffs_dev *dev, int block_no)
+{
+	int result;
 
+	block_no -= dev->block_offset;
 	dev->n_erasures++;
-
-	result = dev->param.erase_fn(dev, flash_block);
-
+	result = dev->param.drv_erase_fn(dev, block_no);
 	return result;
 }
 
-int yaffs_init_nand(struct yaffs_dev_s *dev)
+int yaffs_init_nand(struct yaffs_dev *dev)
 {
-	if(dev->param.initialise_flash_fn)
-		return dev->param.initialise_flash_fn(dev);
+	if (dev->param.drv_initialise_fn)
+		return dev->param.drv_initialise_fn(dev);
 	return YAFFS_OK;
 }
-
-
-