int nandmtd2_QueryNANDBlock(struct yaffs_DeviceStruct *dev, int blockNo,
yaffs_BlockState * state, __u32 *sequenceNumber)
{
#if NAND_DRIVER_BBM
#else
struct mtd_info *mtd = (struct mtd_info *)(dev->genericDevice);
#endif
int retval;
T(YAFFS_TRACE_MTD,
(TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), blockNo));
#if NAND_DRIVER_BBM
retval = 0;
#else
retval =
mtd->block_isbad(mtd,
blockNo * dev->nChunksPerBlock *
dev->totalBytesPerChunk);
#endif
if (retval) {
T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));
*state = YAFFS_BLOCK_STATE_DEAD;
*sequenceNumber = 0;
} else {
yaffs_ExtendedTags t;
nandmtd2_ReadChunkWithTagsFromNAND(dev,
blockNo * dev->nChunksPerBlock, NULL,
&t);
if (t.chunkUsed) {
*sequenceNumber = t.sequenceNumber;
*state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
} else {
*sequenceNumber = 0;
*state = YAFFS_BLOCK_STATE_EMPTY;
}
}
T(YAFFS_TRACE_MTD,
(TSTR("block is bad seq %d state %d" TENDSTR), *sequenceNumber,
*state));
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd2_QueryNANDBlock(struct yaffs_dev_s *dev, int block_no,
yaffs_block_state_t *state, __u32 *seq_number)
{
struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
int retval;
T(YAFFS_TRACE_MTD,
(TSTR("nandmtd2_QueryNANDBlock %d" TENDSTR), block_no));
retval =
mtd->block_isbad(mtd,
block_no * dev->param.chunks_per_block *
dev->param.total_bytes_per_chunk);
if (retval) {
T(YAFFS_TRACE_MTD, (TSTR("block is bad" TENDSTR)));
*state = YAFFS_BLOCK_STATE_DEAD;
*seq_number = 0;
} else {
yaffs_ext_tags t;
nandmtd2_ReadChunkWithTagsFromNAND(dev,
block_no *
dev->param.chunks_per_block, NULL,
&t);
if (t.chunk_used) {
*seq_number = t.seq_number;
*state = YAFFS_BLOCK_STATE_NEEDS_SCANNING;
} else {
*seq_number = 0;
*state = YAFFS_BLOCK_STATE_EMPTY;
}
}
T(YAFFS_TRACE_MTD,
(TSTR("block is bad seq %d state %d" TENDSTR), *seq_number,
*state));
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
