int nandmtd2_query_block(struct yaffs_dev *dev, int block_no,
enum yaffs_block_state *state, u32 * seq_number)
{
struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
int retval;
yaffs_trace(YAFFS_TRACE_MTD, "nandmtd2_query_block %d", block_no);
retval =
mtd_block_isbad(mtd,
block_no * dev->param.chunks_per_block *
dev->param.total_bytes_per_chunk);
if (retval) {
yaffs_trace(YAFFS_TRACE_MTD, "block is bad");
*state = YAFFS_BLOCK_STATE_DEAD;
*seq_number = 0;
} else {
struct yaffs_ext_tags t;
nandmtd2_read_chunk_tags(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;
}
/*if ecc unfixed, set the block empty. This block will be erased when allocate.*/
if(t.ecc_result == YAFFS_ECC_RESULT_UNFIXED)
{
printk("yaffsdebug : unfixed ecc error when scan block, seqnum:0x%x\n",t.seq_number);
*seq_number = 0;
*state = YAFFS_BLOCK_STATE_EMPTY;
}
}
yaffs_trace(YAFFS_TRACE_MTD,
"block is bad seq %d state %d", *seq_number, *state);
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
int nandmtd2_query_block(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_query_block %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_read_chunk_tags(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;
}
int nandmtd2_query_block(struct yaffs_dev *dev, int block_no,
enum yaffs_block_state *state, u32 *seq_number)
{
struct mtd_info *mtd = yaffs_dev_to_mtd(dev);
int retval;
yaffs_trace(YAFFS_TRACE_MTD, "nandmtd2_query_block %d", block_no);
retval =
mtd->block_isbad(mtd,
((loff_t)block_no) * dev->param.chunks_per_block *
dev->param.total_bytes_per_chunk);
if (retval) {
yaffs_trace(YAFFS_TRACE_MTD, "block is bad");
*state = YAFFS_BLOCK_STATE_DEAD;
*seq_number = 0;
} else {
struct yaffs_ext_tags t;
nandmtd2_read_chunk_tags(dev, block_no *
dev->param.chunks_per_block, NULL, &t);
if (t.chunk_used) {
*seq_number = t.seq_number;
*state = YAFFS_BLOCK_STATE_NEEDS_SCAN;
} else {
*seq_number = 0;
*state = YAFFS_BLOCK_STATE_EMPTY;
}
}
yaffs_trace(YAFFS_TRACE_MTD,
"block is bad seq %d state %d",
*seq_number, *state);
if (retval == 0)
return YAFFS_OK;
else
return YAFFS_FAIL;
}
