void yaffs_InitialiseRawTnodesAndObjects(yaffs_Device *dev)
{
yaffs_Allocator *allocator;
unsigned mount_id = yaffs_DeviceToLC(dev)->mount_id;
T(YAFFS_TRACE_ALLOCATE,(TSTR("Initialising yaffs allocator\n")));
if(dev->allocator)
YBUG();
else if(mount_id >= 10){
T(YAFFS_TRACE_ALWAYS,(TSTR("Bad mount_id %u\n"),mount_id));
} else {
allocator = YMALLOC(sizeof(yaffs_Allocator));
memset(allocator,0,sizeof(yaffs_Allocator));
dev->allocator = allocator;
if(!dev->allocator){
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs allocator creation failed\n")));
YBUG();
return;
}
sprintf(allocator->tnode_name,"yaffs_t_%u",mount_id);
sprintf(allocator->object_name,"yaffs_o_%u",mount_id);
allocator->tnode_cache =
kmem_cache_create(allocator->tnode_name,
dev->tnodeSize,
0, 0,
fake_ctor_list[mount_id]);
if(allocator->tnode_cache)
T(YAFFS_TRACE_ALLOCATE,
(TSTR("tnode cache \"%s\" %p\n"),
allocator->tnode_name,allocator->tnode_cache));
else {
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs cache creation failed\n")));
YBUG();
}
allocator->object_cache =
kmem_cache_create(allocator->object_name,
sizeof(yaffs_Object),
0, 0,
fake_ctor_list[mount_id]);
if(allocator->object_cache)
T(YAFFS_TRACE_ALLOCATE,
(TSTR("object cache \"%s\" %p\n"),
allocator->object_name,allocator->object_cache));
else {
T(YAFFS_TRACE_ALWAYS,
(TSTR("yaffs cache creation failed\n")));
YBUG();
}
}
}
int nandmtd2_ReadChunkWithTagsFromNAND(yaffs_Device *dev, int chunkInNAND,
__u8 *data, yaffs_ExtendedTags *tags)
{
struct mtd_info *mtd = yaffs_DeviceToMtd(dev);
#if (MTD_VERSION_CODE > MTD_VERSION(2, 6, 17))
struct mtd_oob_ops ops;
#endif
size_t dummy;
int retval = 0;
int localData = 0;
loff_t addr = ((loff_t) chunkInNAND) * dev->param.totalBytesPerChunk;
yaffs_PackedTags2 pt;
int packed_tags_size = dev->param.noTagsECC ? sizeof(pt.t) : sizeof(pt);
void * packed_tags_ptr = dev->param.noTagsECC ? (void *) &pt.t: (void *)&pt;
T(YAFFS_TRACE_MTD,
(TSTR
("nandmtd2_ReadChunkWithTagsFromNAND chunk %d data %p tags %p"
TENDSTR), chunkInNAND, data, tags));
if (dev->param.inbandTags) {
if (!data) {
localData = 1;
data = yaffs_GetTempBuffer(dev, __LINE__);
}
}
#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17))
if (dev->param.inbandTags || (data && !tags))
retval = mtd->read(mtd, addr, dev->param.totalBytesPerChunk,
&dummy, data);
else if (tags) {
ops.mode = MTD_OOB_AUTO;
ops.ooblen = packed_tags_size;
ops.len = data ? dev->nDataBytesPerChunk : packed_tags_size;
ops.ooboffs = 0;
ops.datbuf = data;
ops.oobbuf = yaffs_DeviceToLC(dev)->spareBuffer;
retval = mtd->read_oob(mtd, addr, &ops);
}
#else
if (!dev->param.inbandTags && data && tags) {
retval = mtd->read_ecc(mtd, addr, dev->nDataBytesPerChunk,
&dummy, data, dev->spareBuffer,
NULL);
} else {
if (data)
retval =
mtd->read(mtd, addr, dev->nDataBytesPerChunk, &dummy,
data);
if (!dev->param.inbandTags && tags)
retval =
mtd->read_oob(mtd, addr, mtd->oobsize, &dummy,
dev->spareBuffer);
}
#endif
if (dev->param.inbandTags) {
if (tags) {
yaffs_PackedTags2TagsPart *pt2tp;
pt2tp = (yaffs_PackedTags2TagsPart *)&data[dev->nDataBytesPerChunk];
yaffs_UnpackTags2TagsPart(tags, pt2tp);
}
} else {
if (tags) {
memcpy(packed_tags_ptr, yaffs_DeviceToLC(dev)->spareBuffer, packed_tags_size);
yaffs_UnpackTags2(tags, &pt, !dev->param.noTagsECC);
}
}
if (localData)
yaffs_ReleaseTempBuffer(dev, data, __LINE__);
if (tags && retval == -EBADMSG && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) {
tags->eccResult = YAFFS_ECC_RESULT_UNFIXED;
dev->eccUnfixed++;
}
if(tags && retval == -EUCLEAN && tags->eccResult == YAFFS_ECC_RESULT_NO_ERROR) {
tags->eccResult = YAFFS_ECC_RESULT_FIXED;
dev->eccFixed++;
}
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
