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driver/ftl: Read the consecutive eraseblocks

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Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
This commit is contained in:
wangjianyu3
2024-02-07 15:39:10 +08:00
committed by Xiang Xiao
parent a6080e4502
commit 1af4cdf500
1 changed files with 5 additions and 3 deletions
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drivers/mtd/ftl.c
+5 -3
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@@ -287,6 +287,7 @@ static ssize_t ftl_mtd_bread(FAR struct ftl_struct_s *dev, off_t startblock,
{ {
off_t startphysicalblock; off_t startphysicalblock;
off_t starteraseblock; off_t starteraseblock;
off_t offset;
size_t count; size_t count;
starteraseblock = startblock / dev->blkper; starteraseblock = startblock / dev->blkper;
@@ -296,11 +297,12 @@ static ssize_t ftl_mtd_bread(FAR struct ftl_struct_s *dev, off_t startblock,
break; break;
} }
offset = startblock & mask;
count = ftl_get_cblock(dev, starteraseblock, count = ftl_get_cblock(dev, starteraseblock,
(nblocks + mask) / dev->blkper); (offset + nblocks + mask) / dev->blkper);
count = MIN(count * dev->blkper, nblocks); count = MIN(count * dev->blkper - offset, nblocks);
startphysicalblock = dev->lptable[starteraseblock] * startphysicalblock = dev->lptable[starteraseblock] *
dev->blkper + (startblock & mask); dev->blkper + offset;
ret = MTD_BREAD(dev->mtd, startphysicalblock, count, buffer); ret = MTD_BREAD(dev->mtd, startphysicalblock, count, buffer);
if (ret == count || ret == -EUCLEAN) if (ret == count || ret == -EUCLEAN)
{ {