/*
- * YAFFS: Yet another FFS. A NAND-flash specific file system.
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
- * Copyright (C) 2002 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>
* 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.
- *
*/
-
-const char *yaffs_nand_c_version =
- "$Id: yaffs_nand.c,v 1.2 2006-09-21 08:13:59 charles Exp $";
#include "yaffs_nand.h"
#include "yaffs_tagscompat.h"
#include "yaffs_tagsvalidity.h"
+#include "yaffs_getblockinfo.h"
-int yaffs_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
- __u8 * buffer,
- yaffs_ExtendedTags * tags)
+int yaffs_rd_chunk_tags_nand(struct yaffs_dev *dev, int nand_chunk,
+ u8 * buffer, struct yaffs_ext_tags *tags)
{
int result;
-
- int realignedChunkInNAND = chunkInNAND - dev->chunkOffset;
+ struct yaffs_ext_tags local_tags;
- if (dev->readChunkWithTagsFromNAND)
- result = dev->readChunkWithTagsFromNAND(dev, realignedChunkInNAND, buffer,
- tags);
+ int realigned_chunk = nand_chunk - dev->chunk_offset;
+
+ dev->n_page_reads++;
+
+ /* If there are no tags provided, use local tags to get prioritised gc working */
+ 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_TagsCompatabilityReadChunkWithTagsFromNAND(dev,
- realignedChunkInNAND,
- buffer,
- tags);
- if(tags &&
- tags->eccResult > YAFFS_ECC_RESULT_NO_ERROR){
-
- yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev, chunkInNAND/dev->nChunksPerBlock);
- bi->gcPrioritise = 1;
+ result = yaffs_tags_compat_rd(dev,
+ realigned_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_WriteChunkWithTagsToNAND(yaffs_Device * dev,
- int chunkInNAND,
- const __u8 * buffer,
- yaffs_ExtendedTags * tags)
+int yaffs_wr_chunk_tags_nand(struct yaffs_dev *dev,
+ int nand_chunk,
+ const u8 * buffer, struct yaffs_ext_tags *tags)
{
- chunkInNAND -= dev->chunkOffset;
-
+ dev->n_page_writes++;
+
+ nand_chunk -= dev->chunk_offset;
+
if (tags) {
- tags->sequenceNumber = dev->sequenceNumber;
- tags->chunkUsed = 1;
- if (!yaffs_ValidateTags(tags)) {
- T(YAFFS_TRACE_ERROR,
- (TSTR("Writing uninitialised tags" TENDSTR)));
+ tags->seq_number = dev->seq_number;
+ tags->chunk_used = 1;
+ if (!yaffs_validate_tags(tags)) {
+ yaffs_trace(YAFFS_TRACE_ERROR, "Writing uninitialised tags");
YBUG();
}
- T(YAFFS_TRACE_WRITE,
- (TSTR("Writing chunk %d tags %d %d" TENDSTR), chunkInNAND,
- tags->objectId, tags->chunkId));
+ yaffs_trace(YAFFS_TRACE_WRITE,
+ "Writing chunk %d tags %d %d",
+ nand_chunk, tags->obj_id, tags->chunk_id);
} else {
- T(YAFFS_TRACE_ERROR, (TSTR("Writing with no tags" TENDSTR)));
+ yaffs_trace(YAFFS_TRACE_ERROR, "Writing with no tags");
YBUG();
+ return YAFFS_FAIL;
}
- if (dev->writeChunkWithTagsToNAND)
- return dev->writeChunkWithTagsToNAND(dev, chunkInNAND, buffer,
- tags);
+ if (dev->param.write_chunk_tags_fn)
+ return dev->param.write_chunk_tags_fn(dev, nand_chunk, buffer,
+ tags);
else
- return yaffs_TagsCompatabilityWriteChunkWithTagsToNAND(dev,
- chunkInNAND,
- buffer,
- tags);
+ return yaffs_tags_compat_wr(dev, nand_chunk, buffer, tags);
}
-int yaffs_MarkBlockBad(yaffs_Device * dev, int blockNo)
+int yaffs_mark_bad(struct yaffs_dev *dev, int block_no)
{
- blockNo -= dev->blockOffset;
+ block_no -= dev->block_offset;
-;
- if (dev->markNANDBlockBad)
- return dev->markNANDBlockBad(dev, blockNo);
+ if (dev->param.bad_block_fn)
+ return dev->param.bad_block_fn(dev, block_no);
else
- return yaffs_TagsCompatabilityMarkNANDBlockBad(dev, blockNo);
+ return yaffs_tags_compat_mark_bad(dev, block_no);
}
-int yaffs_QueryInitialBlockState(yaffs_Device * dev,
- int blockNo,
- yaffs_BlockState * state,
- unsigned *sequenceNumber)
+int yaffs_query_init_block_state(struct yaffs_dev *dev,
+ int block_no,
+ enum yaffs_block_state *state,
+ u32 * seq_number)
{
- blockNo -= dev->blockOffset;
+ block_no -= dev->block_offset;
- if (dev->queryNANDBlock)
- return dev->queryNANDBlock(dev, blockNo, state, sequenceNumber);
+ if (dev->param.query_block_fn)
+ return dev->param.query_block_fn(dev, block_no, state,
+ seq_number);
else
- return yaffs_TagsCompatabilityQueryNANDBlock(dev, blockNo,
- state,
- sequenceNumber);
+ return yaffs_tags_compat_query_block(dev, block_no,
+ state, seq_number);
}
-
-int yaffs_EraseBlockInNAND(struct yaffs_DeviceStruct *dev,
- int blockInNAND)
+int yaffs_erase_block(struct yaffs_dev *dev, int flash_block)
{
int result;
- blockInNAND -= dev->blockOffset;
+ flash_block -= dev->block_offset;
+ dev->n_erasures++;
- dev->nBlockErasures++;
- result = dev->eraseBlockInNAND(dev, blockInNAND);
+ result = dev->param.erase_fn(dev, flash_block);
- /* If at first we don't succeed, try again *once*.*/
- if (!result)
- result = dev->eraseBlockInNAND(dev, blockInNAND);
return result;
}
-int yaffs_InitialiseNAND(struct yaffs_DeviceStruct *dev)
+int yaffs_init_nand(struct yaffs_dev *dev)
{
- return dev->initialiseNAND(dev);
+ if (dev->param.initialise_flash_fn)
+ return dev->param.initialise_flash_fn(dev);
+ return YAFFS_OK;
}
-
-
-
projects / yaffs2.git / blobdiff