/* NB For use with inband tags....
- * We assume that the data buffer is of size totalBytersPerChunk so that we can also
- * use it to load the tags.
+ * We assume that the data buffer is of size totalBytersPerChunk so that
+ * we can also use it to load the tags.
*/
-int ynandif_WriteChunkWithTagsToNAND(struct yaffs_dev * dev, int nand_chunk,
- const u8 * data,
- const struct yaffs_ext_tags * tags)
+int ynandif_WriteChunkWithTagsToNAND(struct yaffs_dev *dev, int nand_chunk,
+ const u8 *data,
+ const struct yaffs_ext_tags *tags)
{
int retval = 0;
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.
* If we're using inband tags, then the tags are stuffed into
* the end of the data buffer.
*/
- if(dev->param.inband_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);
+ yaffs_pack_tags2_tags_only(pt2tp, tags);
spare = NULL;
spareSize = 0;
- }
- else{
- yaffs_pack_tags2(&pt, tags,!dev->param.no_tags_ecc);
+ } else {
+ yaffs_pack_tags2(&pt, tags, !dev->param.no_tags_ecc);
spare = &pt;
spareSize = sizeof(struct yaffs_packed_tags2);
}
-
- retval = geometry->writeChunk(dev,nand_chunk,
+
+ retval = geometry->writeChunk(dev, nand_chunk,
data, dev->param.total_bytes_per_chunk,
spare, spareSize);
return retval;
}
-int ynandif_ReadChunkWithTagsFromNAND(struct yaffs_dev * dev, int nand_chunk,
- u8 * data, struct yaffs_ext_tags * tags)
+int ynandif_ReadChunkWithTagsFromNAND(struct yaffs_dev *dev, int nand_chunk,
+ u8 *data, struct yaffs_ext_tags *tags)
{
struct yaffs_packed_tags2 pt;
int localData = 0;
void *spare = NULL;
unsigned spareSize;
int retval = 0;
- int eccStatus; //0 = ok, 1 = fixed, -1 = unfixed
+ int eccStatus; /* 0 = ok, 1 = fixed, -1 = unfixed */
ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
yaffs_trace(YAFFS_TRACE_MTD,
"nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p",
nand_chunk, data, tags);
-
- if(!tags){
+
+ if (!tags) {
spare = NULL;
spareSize = 0;
- }else if(dev->param.inband_tags){
-
- if(!data) {
+ } else if (dev->param.inband_tags) {
+
+ if (!data) {
localData = 1;
data = yaffs_get_temp_buffer(dev);
}
spare = NULL;
spareSize = 0;
- }
- else {
+ } else {
spare = &pt;
spareSize = sizeof(struct yaffs_packed_tags2);
}
- retval = geometry->readChunk(dev,nand_chunk,
- data,
- data ? dev->param.total_bytes_per_chunk : 0,
- spare,spareSize,
- &eccStatus);
-
- if(dev->param.inband_tags){
- if(tags){
- 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_unpack_tags2(tags, &pt,!dev->param.no_tags_ecc);
+ retval = geometry->readChunk(dev, nand_chunk,
+ data,
+ data ? dev->param.total_bytes_per_chunk : 0,
+ spare, spareSize,
+ &eccStatus);
+
+ if (dev->param.inband_tags) {
+ if (tags) {
+ 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_unpack_tags2(tags, &pt, !dev->param.no_tags_ecc);
}
- if(tags && tags->chunk_used){
- if(eccStatus < 0 ||
+ if (tags && tags->chunk_used) {
+ if (eccStatus < 0 ||
tags->ecc_result == YAFFS_ECC_RESULT_UNFIXED)
tags->ecc_result = YAFFS_ECC_RESULT_UNFIXED;
- else if(eccStatus > 0 ||
+ else if (eccStatus > 0 ||
tags->ecc_result == YAFFS_ECC_RESULT_FIXED)
tags->ecc_result = YAFFS_ECC_RESULT_FIXED;
else
tags->ecc_result = YAFFS_ECC_RESULT_NO_ERROR;
}
- if(localData)
+ if (localData)
yaffs_release_temp_buffer(dev, data);
-
+
return retval;
}
{
ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
- return geometry->markBlockBad(dev,blockId);
+ return geometry->markBlockBad(dev, blockId);
}
int ynandif_EraseBlockInNAND(struct yaffs_dev *dev, int blockId)
{
ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
- return geometry->eraseBlock(dev,blockId);
+ return geometry->eraseBlock(dev, blockId);
}
{
ynandif_Geometry *geometry = (ynandif_Geometry *)(dev->driver_context);
- return geometry->checkBlockOk(dev,blockId);
+ return geometry->checkBlockOk(dev, blockId);
}
-int ynandif_QueryNANDBlock(struct yaffs_dev *dev, int blockId,
+int ynandif_QueryNANDBlock(struct yaffs_dev *dev, int blockId,
enum yaffs_block_state *state, u32 *seq_number)
{
unsigned chunkNo;
struct yaffs_ext_tags tags;
*seq_number = 0;
-
+
chunkNo = blockId * dev->param.chunks_per_block;
-
- if(!ynandif_IsBlockOk(dev,blockId)){
+
+ if (!ynandif_IsBlockOk(dev, blockId)) {
*state = YAFFS_BLOCK_STATE_DEAD;
- }
- else
- {
- ynandif_ReadChunkWithTagsFromNAND(dev,chunkNo,NULL,&tags);
+ } else {
+ ynandif_ReadChunkWithTagsFromNAND(dev, chunkNo, NULL, &tags);
- if(!tags.chunk_used)
- {
+ if (!tags.chunk_used) {
*state = YAFFS_BLOCK_STATE_EMPTY;
- }
- else
- {
+ } else {
*state = YAFFS_BLOCK_STATE_NEEDS_SCAN;
*seq_number = tags.seq_number;
}
}
-struct yaffs_dev *
+struct yaffs_dev *
yaffs_add_dev_from_geometry(const YCHAR *name,
const ynandif_Geometry *geometry)
{
- YCHAR *clonedName = malloc(sizeof(YCHAR) * (strnlen(name,YAFFS_MAX_NAME_LENGTH)+1));
+ 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_dev));
- strcpy(clonedName,name);
-
- dev->param.name = clonedName;
- 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;
+ struct yaffs_param *param;
+
+ if (dev && clonedName) {
+ memset(dev, 0, sizeof(struct yaffs_dev));
+ strcpy(clonedName, name);
+
+ param = &dev->param;
+
+ param->name = clonedName;
+ param->write_chunk_tags_fn = ynandif_WriteChunkWithTagsToNAND;
+ param->read_chunk_tags_fn = ynandif_ReadChunkWithTagsFromNAND;
+ param->erase_fn = ynandif_EraseBlockInNAND;
+ param->initialise_flash_fn = ynandif_InitialiseNAND;
+ param->query_block_fn = ynandif_QueryNANDBlock;
+ param->bad_block_fn = ynandif_MarkNANDBlockBad;
+ param->n_caches = 20;
+ param->start_block = geometry->start_block;
+ param->end_block = geometry->end_block;
+ param->total_bytes_per_chunk = geometry->dataSize;
+ param->spare_bytes_per_chunk = geometry->spareSize;
+ param->inband_tags = geometry->inband_tags;
+ param->chunks_per_block = geometry->pagesPerBlock;
+ param->use_nand_ecc = geometry->hasECC;
+ param->is_yaffs2 = geometry->useYaffs2;
+ param->n_reserved_blocks = 5;
dev->driver_context = (void *)geometry;
yaffs_add_device(dev);
return dev;
}
- if(dev)
- free(dev);
- if(clonedName)
- free(clonedName);
+ free(dev);
+ free(clonedName);
return NULL;
}
projects / yaffs2.git / blobdiff