change the way ./files* and the generic kernel files are applied. ./files now applies to *ALL* kernel versions, and is copied along with ./files-* - this gets rid of quite a bit of redundancy in the extra kernel drivers.

SVN-Revision: 13010

1 files changed, 0 insertions, 404 deletions

diff --git a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.c b/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.c
deleted file mode 100644
index 933a33fb8b..0000000000
--- a/target/linux/generic-2.6/files/fs/yaffs2/yaffs_checkptrw.c
+++ /dev/null
@@ -1,404 +0,0 @@
-/*
- * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
- *
- * Copyright (C) 2002-2007 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_checkptrw_c_version =
-    "$Id: yaffs_checkptrw.c,v 1.14 2007-05-15 20:07:40 charles Exp $";
-
-
-#include "yaffs_checkptrw.h"
-
-
-static int yaffs_CheckpointSpaceOk(yaffs_Device *dev)
-{
-
-	int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
-
-	T(YAFFS_TRACE_CHECKPOINT,
-		(TSTR("checkpt blocks available = %d" TENDSTR),
-		blocksAvailable));
-
-
-	return (blocksAvailable <= 0) ? 0 : 1;
-}
-
-
-static int yaffs_CheckpointErase(yaffs_Device *dev)
-{
-
-	int i;
-
-
-	if(!dev->eraseBlockInNAND)
-		return 0;
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("checking blocks %d to %d"TENDSTR),
-		dev->internalStartBlock,dev->internalEndBlock));
-
-	for(i = dev->internalStartBlock; i <= dev->internalEndBlock; i++) {
-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
-		if(bi->blockState == YAFFS_BLOCK_STATE_CHECKPOINT){
-			T(YAFFS_TRACE_CHECKPOINT,(TSTR("erasing checkpt block %d"TENDSTR),i));
-			if(dev->eraseBlockInNAND(dev,i- dev->blockOffset /* realign */)){
-				bi->blockState = YAFFS_BLOCK_STATE_EMPTY;
-				dev->nErasedBlocks++;
-				dev->nFreeChunks += dev->nChunksPerBlock;
-			}
-			else {
-				dev->markNANDBlockBad(dev,i);
-				bi->blockState = YAFFS_BLOCK_STATE_DEAD;
-			}
-		}
-	}
-
-	dev->blocksInCheckpoint = 0;
-
-	return 1;
-}
-
-
-static void yaffs_CheckpointFindNextErasedBlock(yaffs_Device *dev)
-{
-	int  i;
-	int blocksAvailable = dev->nErasedBlocks - dev->nReservedBlocks;
-	T(YAFFS_TRACE_CHECKPOINT,
-		(TSTR("allocating checkpt block: erased %d reserved %d avail %d next %d "TENDSTR),
-		dev->nErasedBlocks,dev->nReservedBlocks,blocksAvailable,dev->checkpointNextBlock));
-
-	if(dev->checkpointNextBlock >= 0 &&
-	   dev->checkpointNextBlock <= dev->internalEndBlock &&
-	   blocksAvailable > 0){
-
-		for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){
-			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,i);
-			if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY){
-				dev->checkpointNextBlock = i + 1;
-				dev->checkpointCurrentBlock = i;
-				T(YAFFS_TRACE_CHECKPOINT,(TSTR("allocating checkpt block %d"TENDSTR),i));
-				return;
-			}
-		}
-	}
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("out of checkpt blocks"TENDSTR)));
-
-	dev->checkpointNextBlock = -1;
-	dev->checkpointCurrentBlock = -1;
-}
-
-static void yaffs_CheckpointFindNextCheckpointBlock(yaffs_Device *dev)
-{
-	int  i;
-	yaffs_ExtendedTags tags;
-
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: start:  blocks %d next %d" TENDSTR),
-		dev->blocksInCheckpoint, dev->checkpointNextBlock));
-
-	if(dev->blocksInCheckpoint < dev->checkpointMaxBlocks)
-		for(i = dev->checkpointNextBlock; i <= dev->internalEndBlock; i++){
-			int chunk = i * dev->nChunksPerBlock;
-			int realignedChunk = chunk - dev->chunkOffset;
-
-			dev->readChunkWithTagsFromNAND(dev,realignedChunk,NULL,&tags);
-			T(YAFFS_TRACE_CHECKPOINT,(TSTR("find next checkpt block: search: block %d oid %d seq %d eccr %d" TENDSTR),
-				i, tags.objectId,tags.sequenceNumber,tags.eccResult));
-
-			if(tags.sequenceNumber == YAFFS_SEQUENCE_CHECKPOINT_DATA){
-				/* Right kind of block */
-				dev->checkpointNextBlock = tags.objectId;
-				dev->checkpointCurrentBlock = i;
-				dev->checkpointBlockList[dev->blocksInCheckpoint] = i;
-				dev->blocksInCheckpoint++;
-				T(YAFFS_TRACE_CHECKPOINT,(TSTR("found checkpt block %d"TENDSTR),i));
-				return;
-			}
-		}
-
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("found no more checkpt blocks"TENDSTR)));
-
-	dev->checkpointNextBlock = -1;
-	dev->checkpointCurrentBlock = -1;
-}
-
-
-int yaffs_CheckpointOpen(yaffs_Device *dev, int forWriting)
-{
-
-	/* Got the functions we need? */
-	if (!dev->writeChunkWithTagsToNAND ||
-	    !dev->readChunkWithTagsFromNAND ||
-	    !dev->eraseBlockInNAND ||
-	    !dev->markNANDBlockBad)
-		return 0;
-
-	if(forWriting && !yaffs_CheckpointSpaceOk(dev))
-		return 0;
-
-	if(!dev->checkpointBuffer)
-		dev->checkpointBuffer = YMALLOC_DMA(dev->nDataBytesPerChunk);
-	if(!dev->checkpointBuffer)
-		return 0;
-
-
-	dev->checkpointPageSequence = 0;
-
-	dev->checkpointOpenForWrite = forWriting;
-
-	dev->checkpointByteCount = 0;
-	dev->checkpointSum = 0;
-	dev->checkpointXor = 0;
-	dev->checkpointCurrentBlock = -1;
-	dev->checkpointCurrentChunk = -1;
-	dev->checkpointNextBlock = dev->internalStartBlock;
-
-	/* Erase all the blocks in the checkpoint area */
-	if(forWriting){
-		memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk);
-		dev->checkpointByteOffset = 0;
-		return yaffs_CheckpointErase(dev);
-
-
-	} else {
-		int i;
-		/* Set to a value that will kick off a read */
-		dev->checkpointByteOffset = dev->nDataBytesPerChunk;
-		/* A checkpoint block list of 1 checkpoint block per 16 block is (hopefully)
-		 * going to be way more than we need */
-		dev->blocksInCheckpoint = 0;
-		dev->checkpointMaxBlocks = (dev->internalEndBlock - dev->internalStartBlock)/16 + 2;
-		dev->checkpointBlockList = YMALLOC(sizeof(int) * dev->checkpointMaxBlocks);
-		for(i = 0; i < dev->checkpointMaxBlocks; i++)
-			dev->checkpointBlockList[i] = -1;
-	}
-
-	return 1;
-}
-
-int yaffs_GetCheckpointSum(yaffs_Device *dev, __u32 *sum)
-{
-	__u32 compositeSum;
-	compositeSum =  (dev->checkpointSum << 8) | (dev->checkpointXor & 0xFF);
-	*sum = compositeSum;
-	return 1;
-}
-
-static int yaffs_CheckpointFlushBuffer(yaffs_Device *dev)
-{
-
-	int chunk;
-	int realignedChunk;
-
-	yaffs_ExtendedTags tags;
-
-	if(dev->checkpointCurrentBlock < 0){
-		yaffs_CheckpointFindNextErasedBlock(dev);
-		dev->checkpointCurrentChunk = 0;
-	}
-
-	if(dev->checkpointCurrentBlock < 0)
-		return 0;
-
-	tags.chunkDeleted = 0;
-	tags.objectId = dev->checkpointNextBlock; /* Hint to next place to look */
-	tags.chunkId = dev->checkpointPageSequence + 1;
-	tags.sequenceNumber =  YAFFS_SEQUENCE_CHECKPOINT_DATA;
-	tags.byteCount = dev->nDataBytesPerChunk;
-	if(dev->checkpointCurrentChunk == 0){
-		/* First chunk we write for the block? Set block state to
-		   checkpoint */
-		yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointCurrentBlock);
-		bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
-		dev->blocksInCheckpoint++;
-	}
-
-	chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock + dev->checkpointCurrentChunk;
-
-
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint wite buffer nand %d(%d:%d) objid %d chId %d" TENDSTR),
-		chunk, dev->checkpointCurrentBlock, dev->checkpointCurrentChunk,tags.objectId,tags.chunkId));
-
-	realignedChunk = chunk - dev->chunkOffset;
-
-	dev->writeChunkWithTagsToNAND(dev,realignedChunk,dev->checkpointBuffer,&tags);
-	dev->checkpointByteOffset = 0;
-	dev->checkpointPageSequence++;
-	dev->checkpointCurrentChunk++;
-	if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock){
-		dev->checkpointCurrentChunk = 0;
-		dev->checkpointCurrentBlock = -1;
-	}
-	memset(dev->checkpointBuffer,0,dev->nDataBytesPerChunk);
-
-	return 1;
-}
-
-
-int yaffs_CheckpointWrite(yaffs_Device *dev,const void *data, int nBytes)
-{
-	int i=0;
-	int ok = 1;
-
-
-	__u8 * dataBytes = (__u8 *)data;
-
-
-
-	if(!dev->checkpointBuffer)
-		return 0;
-
-	if(!dev->checkpointOpenForWrite)
-		return -1;
-
-	while(i < nBytes && ok) {
-
-
-
-		dev->checkpointBuffer[dev->checkpointByteOffset] = *dataBytes ;
-		dev->checkpointSum += *dataBytes;
-		dev->checkpointXor ^= *dataBytes;
-
-		dev->checkpointByteOffset++;
-		i++;
-		dataBytes++;
-		dev->checkpointByteCount++;
-
-
-		if(dev->checkpointByteOffset < 0 ||
-		   dev->checkpointByteOffset >= dev->nDataBytesPerChunk)
-			ok = yaffs_CheckpointFlushBuffer(dev);
-
-	}
-
-	return 	i;
-}
-
-int yaffs_CheckpointRead(yaffs_Device *dev, void *data, int nBytes)
-{
-	int i=0;
-	int ok = 1;
-	yaffs_ExtendedTags tags;
-
-
-	int chunk;
-	int realignedChunk;
-
-	__u8 *dataBytes = (__u8 *)data;
-
-	if(!dev->checkpointBuffer)
-		return 0;
-
-	if(dev->checkpointOpenForWrite)
-		return -1;
-
-	while(i < nBytes && ok) {
-
-
-		if(dev->checkpointByteOffset < 0 ||
-		   dev->checkpointByteOffset >= dev->nDataBytesPerChunk) {
-
-		   	if(dev->checkpointCurrentBlock < 0){
-				yaffs_CheckpointFindNextCheckpointBlock(dev);
-				dev->checkpointCurrentChunk = 0;
-			}
-
-			if(dev->checkpointCurrentBlock < 0)
-				ok = 0;
-			else {
-
-				chunk = dev->checkpointCurrentBlock * dev->nChunksPerBlock +
-				          dev->checkpointCurrentChunk;
-
-				realignedChunk = chunk - dev->chunkOffset;
-
-	   			/* read in the next chunk */
-	   			/* printf("read checkpoint page %d\n",dev->checkpointPage); */
-				dev->readChunkWithTagsFromNAND(dev, realignedChunk,
-							       dev->checkpointBuffer,
-							      &tags);
-
-				if(tags.chunkId != (dev->checkpointPageSequence + 1) ||
-				   tags.sequenceNumber != YAFFS_SEQUENCE_CHECKPOINT_DATA)
-				   ok = 0;
-
-				dev->checkpointByteOffset = 0;
-				dev->checkpointPageSequence++;
-				dev->checkpointCurrentChunk++;
-
-				if(dev->checkpointCurrentChunk >= dev->nChunksPerBlock)
-					dev->checkpointCurrentBlock = -1;
-			}
-		}
-
-		if(ok){
-			*dataBytes = dev->checkpointBuffer[dev->checkpointByteOffset];
-			dev->checkpointSum += *dataBytes;
-			dev->checkpointXor ^= *dataBytes;
-			dev->checkpointByteOffset++;
-			i++;
-			dataBytes++;
-			dev->checkpointByteCount++;
-		}
-	}
-
-	return 	i;
-}
-
-int yaffs_CheckpointClose(yaffs_Device *dev)
-{
-
-	if(dev->checkpointOpenForWrite){
-		if(dev->checkpointByteOffset != 0)
-			yaffs_CheckpointFlushBuffer(dev);
-	} else {
-		int i;
-		for(i = 0; i < dev->blocksInCheckpoint && dev->checkpointBlockList[i] >= 0; i++){
-			yaffs_BlockInfo *bi = yaffs_GetBlockInfo(dev,dev->checkpointBlockList[i]);
-			if(bi->blockState == YAFFS_BLOCK_STATE_EMPTY)
-				bi->blockState = YAFFS_BLOCK_STATE_CHECKPOINT;
-			else {
-				// Todo this looks odd...
-			}
-		}
-		YFREE(dev->checkpointBlockList);
-		dev->checkpointBlockList = NULL;
-	}
-
-	dev->nFreeChunks -= dev->blocksInCheckpoint * dev->nChunksPerBlock;
-	dev->nErasedBlocks -= dev->blocksInCheckpoint;
-
-
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint byte count %d" TENDSTR),
-			dev->checkpointByteCount));
-
-	if(dev->checkpointBuffer){
-		/* free the buffer */
-		YFREE(dev->checkpointBuffer);
-		dev->checkpointBuffer = NULL;
-		return 1;
-	}
-	else
-		return 0;
-
-}
-
-int yaffs_CheckpointInvalidateStream(yaffs_Device *dev)
-{
-	/* Erase the first checksum block */
-
-	T(YAFFS_TRACE_CHECKPOINT,(TSTR("checkpoint invalidate"TENDSTR)));
-
-	if(!yaffs_CheckpointSpaceOk(dev))
-		return 0;
-
-	return yaffs_CheckpointErase(dev);
-}
-
-
-