/*
* YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
*
- * Copyright (C) 2002-2007 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>
#include "yportenv.h"
#include "yaffs_guts.h"
-#include "devextras.h"
#include "yaffs_nandif.h"
* We assume that the data buffer is of size totalBytersPerChunk so that we can also
* use it to load the tags.
*/
-int ynandif_WriteChunkWithTagsToNAND(yaffs_Device * dev, int chunkInNAND,
- const __u8 * data,
- const yaffs_ExtendedTags * tags)
+int ynandif_WriteChunkWithTagsToNAND(struct yaffs_dev * dev, int nand_chunk,
+ const u8 * data,
+ const struct yaffs_ext_tags * tags)
{
int retval = 0;
- yaffs_PackedTags2 pt;
+ struct yaffs_packed_tags2 pt;
void *spare;
unsigned spareSize = 0;
- ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driverContext);
+ ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
- T(YAFFS_TRACE_MTD,
- (TSTR
- ("nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p"
- TENDSTR), chunkInNAND, data, tags));
+ yaffs_trace(YAFFS_TRACE_MTD,
+ "nandmtd2_WriteChunkWithTagsToNAND chunk %d data %p tags %p",
+ nand_chunk, data, tags);
/* For yaffs2 writing there must be both data and tags.
* the end of the data buffer.
*/
- if(dev->param.inbandTags){
- yaffs_PackedTags2TagsPart *pt2tp;
- pt2tp = (yaffs_PackedTags2TagsPart *)(data + dev->nDataBytesPerChunk);
- yaffs_PackTags2TagsPart(pt2tp,tags);
+ if(dev->param.inband_tags){
+ struct yaffs_packed_tags2_tags_only *pt2tp;
+ pt2tp = (struct yaffs_packed_tags2_tags_only *)
+ (data + dev->data_bytes_per_chunk);
+ yaffs_pack_tags2_tags_only(pt2tp,tags);
spare = NULL;
spareSize = 0;
}
else{
- yaffs_PackTags2(&pt, tags,!dev->param.noTagsECC);
+ yaffs_pack_tags2(&pt, tags,!dev->param.no_tags_ecc);
spare = &pt;
- spareSize = sizeof(yaffs_PackedTags2);
+ spareSize = sizeof(struct yaffs_packed_tags2);
}
- retval = geometry->writeChunk(dev,chunkInNAND,
- data, dev->param.totalBytesPerChunk, spare, spareSize);
+ retval = geometry->writeChunk(dev,nand_chunk,
+ data, dev->param.total_bytes_per_chunk,
+ spare, spareSize);
return retval;
}
-int ynandif_ReadChunkWithTagsFromNAND(yaffs_Device * dev, int chunkInNAND,
- __u8 * data, yaffs_ExtendedTags * tags)
+int ynandif_ReadChunkWithTagsFromNAND(struct yaffs_dev * dev, int nand_chunk,
+ u8 * data, struct yaffs_ext_tags * tags)
{
- yaffs_PackedTags2 pt;
+ struct yaffs_packed_tags2 pt;
int localData = 0;
void *spare = NULL;
unsigned spareSize;
int retval = 0;
int eccStatus; //0 = ok, 1 = fixed, -1 = unfixed
- ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driverContext);
+ ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
- T(YAFFS_TRACE_MTD,
- (TSTR
- ("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p"
- TENDSTR), chunkInNAND, data, tags));
+ yaffs_trace(YAFFS_TRACE_MTD,
+ "nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p",
+ nand_chunk, data, tags);
if(!tags){
spare = NULL;
spareSize = 0;
- }else if(dev->param.inbandTags){
+ }else if(dev->param.inband_tags){
if(!data) {
localData = 1;
- data = yaffs_GetTempBuffer(dev,__LINE__);
+ data = yaffs_get_temp_buffer(dev);
}
spare = NULL;
spareSize = 0;
}
else {
spare = &pt;
- spareSize = sizeof(yaffs_PackedTags2);
+ spareSize = sizeof(struct yaffs_packed_tags2);
}
- retval = geometry->readChunk(dev,chunkInNAND,
+ retval = geometry->readChunk(dev,nand_chunk,
data,
- data ? dev->param.totalBytesPerChunk : 0,
+ data ? dev->param.total_bytes_per_chunk : 0,
spare,spareSize,
&eccStatus);
- if(dev->param.inbandTags){
+ if(dev->param.inband_tags){
if(tags){
- yaffs_PackedTags2TagsPart * pt2tp;
- pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk];
- yaffs_UnpackTags2TagsPart(tags,pt2tp);
+ struct yaffs_packed_tags2_tags_only * pt2tp;
+ pt2tp = (struct yaffs_packed_tags2_tags_only *)&data[dev->data_bytes_per_chunk];
+ yaffs_unpack_tags2_tags_only(tags,pt2tp);
}
}
else {
if (tags){
- yaffs_UnpackTags2(tags, &pt,!dev->param.noTagsECC);
+ yaffs_unpack_tags2(tags, &pt,!dev->param.no_tags_ecc);
}
}
- if(tags && tags->chunkUsed){
+ if(tags && tags->chunk_used){
if(eccStatus < 0 ||
- tags->eccResult == YAFFS_ECC_RESULT_UNFIXED)
- tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
+ tags->ecc_result == YAFFS_ECC_RESULT_UNFIXED)
+ tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED;
else if(eccStatus > 0 ||
- tags->eccResult == YAFFS_ECC_RESULT_FIXED)
- tags->eccResult = YAFFS_ECC_RESULT_FIXED;
+ tags->ecc_result == YAFFS_ECC_RESULT_FIXED)
+ tags->ecc_result = YAFFS_ECC_RESULT_FIXED;
else
- tags->eccResult = YAFFS_ECC_RESULT_NO_ERROR;
+ tags->ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
}
if(localData)
- yaffs_ReleaseTempBuffer(dev,data,__LINE__);
+ yaffs_release_temp_buffer(dev, data);
return retval;
}
-int ynandif_MarkNANDBlockBad(struct yaffs_DeviceStruct *dev, int blockId)
+int ynandif_MarkNANDBlockBad(struct yaffs_dev *dev, int blockId)
{
- ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driverContext);
+ ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
return geometry->markBlockBad(dev,blockId);
}
-int ynandif_EraseBlockInNAND(struct yaffs_DeviceStruct *dev, int blockId)
+int ynandif_EraseBlockInNAND(struct yaffs_dev *dev, int blockId)
{
- ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driverContext);
+ ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
return geometry->eraseBlock(dev,blockId);
}
-static int ynandif_IsBlockOk(struct yaffs_DeviceStruct *dev, int blockId)
+static int ynandif_IsBlockOk(struct yaffs_dev *dev, int blockId)
{
- ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driverContext);
+ ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
return geometry->checkBlockOk(dev,blockId);
}
-int ynandif_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockId, yaffs_BlockState *state, __u32 *sequenceNumber)
+int ynandif_QueryNANDBlock(struct yaffs_dev *dev, int blockId,
+ enum yaffs_block_state *state, u32 *seq_number)
{
unsigned chunkNo;
- yaffs_ExtendedTags tags;
- ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driverContext);
+ struct yaffs_ext_tags tags;
- *sequenceNumber = 0;
+ *seq_number = 0;
- chunkNo = blockId * dev->param.nChunksPerBlock;
+ chunkNo = blockId * dev->param.chunks_per_block;
if(!ynandif_IsBlockOk(dev,blockId)){
*state = YAFFS_BLOCK_STATE_DEAD;
{
ynandif_ReadChunkWithTagsFromNAND(dev,chunkNo,NULL,&tags);
- if(!tags.chunkUsed)
+ if(!tags.chunk_used)
{
*state = YAFFS_BLOCK_STATE_EMPTY;
}
else
{
- *state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
- *sequenceNumber = tags.sequenceNumber;
+ *state = YAFFS_BLOCK_STATE_NEEDS_SCAN;
+ *seq_number = tags.seq_number;
}
}
}
-int ynandif_InitialiseNAND(yaffs_Device *dev)
+int ynandif_InitialiseNAND(struct yaffs_dev *dev)
{
- ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driverContext);
+ ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
geometry->initialise(dev);
return YAFFS_OK;
}
-int ynandif_DeinitialiseNAND(yaffs_Device *dev)
+int ynandif_Deinitialise_flash_fn(struct yaffs_dev *dev)
{
- ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driverContext);
+ ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
geometry->deinitialise(dev);
}
-struct yaffs_DeviceStruct *
- yaffs_AddDeviceFromGeometry(const YCHAR *name,
+struct yaffs_dev *
+ yaffs_add_dev_from_geometry(const YCHAR *name,
const ynandif_Geometry *geometry)
{
- YCHAR *clonedName = YMALLOC(sizeof(YCHAR) * (yaffs_strnlen(name,YAFFS_MAX_NAME_LENGTH)+1));
- struct yaffs_DeviceStruct *dev = YMALLOC(sizeof(struct yaffs_DeviceStruct));
+ YCHAR *clonedName = malloc(sizeof(YCHAR) * (strnlen(name,YAFFS_MAX_NAME_LENGTH)+1));
+ struct yaffs_dev *dev = malloc(sizeof(struct yaffs_dev));
if(dev && clonedName){
- memset(dev,0,sizeof(struct yaffs_DeviceStruct));
- yaffs_strcpy(clonedName,name);
+ memset(dev,0,sizeof(struct yaffs_dev));
+ strcpy(clonedName,name);
dev->param.name = clonedName;
- dev->param.writeChunkWithTagsToNAND = ynandif_WriteChunkWithTagsToNAND;
- dev->param.readChunkWithTagsFromNAND = ynandif_ReadChunkWithTagsFromNAND;
- dev->param.eraseBlockInNAND = ynandif_EraseBlockInNAND;
- dev->param.initialiseNAND = ynandif_InitialiseNAND;
- dev->param.queryNANDBlock = ynandif_QueryNANDBlock;
- dev->param.markNANDBlockBad = ynandif_MarkNANDBlockBad;
- dev->param.nShortOpCaches = 20;
- dev->param.startBlock = geometry->startBlock;
- dev->param.endBlock = geometry->endBlock;
- dev->param.totalBytesPerChunk = geometry->dataSize;
- dev->param.spareBytesPerChunk = geometry->spareSize;
- dev->param.inbandTags = geometry->inbandTags;
- dev->param.nChunksPerBlock = geometry->pagesPerBlock;
- dev->param.useNANDECC = geometry->hasECC;
- dev->param.isYaffs2 = geometry->useYaffs2;
- dev->param.nReservedBlocks = 5;
- dev->driverContext = (void *)geometry;
-
- yaffs_AddDevice(dev);
+ dev->param.write_chunk_tags_fn = ynandif_WriteChunkWithTagsToNAND;
+ dev->param.read_chunk_tags_fn = ynandif_ReadChunkWithTagsFromNAND;
+ dev->param.erase_fn = ynandif_EraseBlockInNAND;
+ dev->param.initialise_flash_fn = ynandif_InitialiseNAND;
+ dev->param.query_block_fn = ynandif_QueryNANDBlock;
+ dev->param.bad_block_fn = ynandif_MarkNANDBlockBad;
+ dev->param.n_caches = 20;
+ dev->param.start_block = geometry->start_block;
+ dev->param.end_block = geometry->end_block;
+ dev->param.total_bytes_per_chunk = geometry->dataSize;
+ dev->param.spare_bytes_per_chunk = geometry->spareSize;
+ dev->param.inband_tags = geometry->inband_tags;
+ dev->param.chunks_per_block = geometry->pagesPerBlock;
+ dev->param.use_nand_ecc = geometry->hasECC;
+ dev->param.is_yaffs2 = geometry->useYaffs2;
+ dev->param.n_reserved_blocks = 5;
+ dev->driver_context = (void *)geometry;
+
+ yaffs_add_device(dev);
return dev;
}
if(dev)
- YFREE(dev);
+ free(dev);
if(clonedName)
- YFREE(clonedName);
+ free(clonedName);
return NULL;
}
+
projects / yaffs2.git / blobdiff