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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 03/16] mtd: mtdpart: Add oob_read function
Date: Tue, 15 Mar 2016 12:15:21 +0100	[thread overview]
Message-ID: <1458040534-6171-4-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1458040534-6171-1-git-send-email-s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 drivers/mtd/partition.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/mtd/partition.c b/drivers/mtd/partition.c
index 261e35c..777cb75 100644
--- a/drivers/mtd/partition.c
+++ b/drivers/mtd/partition.c
@@ -18,6 +18,26 @@ static int mtd_part_read(struct mtd_info *mtd, loff_t from, size_t len,
 	return res;
 }
 
+static int mtd_part_read_oob(struct mtd_info *mtd, loff_t from,
+		struct mtd_oob_ops *ops)
+{
+	int res;
+
+	if (from >= mtd->size)
+		return -EINVAL;
+	if (ops->datbuf && from + ops->len > mtd->size)
+		return -EINVAL;
+
+	res = mtd->master->read_oob(mtd->master, from + mtd->master_offset, ops);
+	if (unlikely(res)) {
+		if (mtd_is_bitflip(res))
+			mtd->ecc_stats.corrected++;
+		if (mtd_is_eccerr(res))
+			mtd->ecc_stats.failed++;
+	}
+	return res;
+}
+
 static int mtd_part_write(struct mtd_info *mtd, loff_t to, size_t len,
                 size_t *retlen, const u_char *buf)
 {
@@ -188,6 +208,8 @@ struct mtd_info *mtd_add_partition(struct mtd_info *mtd, off_t offset,
 
 	if (mtd->write_oob)
 		part->write_oob = mtd_part_write_oob;
+	if (mtd->read_oob)
+		part->read_oob = mtd_part_read_oob;
 
 	part->block_isbad = mtd->block_isbad ? mtd_part_block_isbad : NULL;
 	part->size = size;
-- 
2.7.0


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  parent reply	other threads:[~2016-03-15 11:16 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-15 11:15 Introduce mtd-peb API Sascha Hauer
2016-03-15 11:15 ` [PATCH 01/16] mtd: Add support for marking blocks as good Sascha Hauer
2016-03-15 11:15 ` [PATCH 02/16] mtd: nand: Add option to print bbt in nand command Sascha Hauer
2016-03-15 11:15 ` Sascha Hauer [this message]
2016-03-15 11:15 ` [PATCH 04/16] mtd: Introduce function to get mtd type string Sascha Hauer
2016-03-15 11:15 ` [PATCH 05/16] mtd: rename mtd_all_ff -> mtd_buf_all_ff Sascha Hauer
2016-03-15 11:15 ` [PATCH 06/16] mtd: Introduce mtd_check_pattern Sascha Hauer
2016-03-15 11:15 ` [PATCH 07/16] mtd: Introduce mtd-peb API Sascha Hauer
2016-03-15 11:15 ` [PATCH 08/16] ubiformat: Use " Sascha Hauer
2016-03-15 11:15 ` [PATCH 09/16] remove now unused libmtd Sascha Hauer
2016-03-15 11:15 ` [PATCH 10/16] mtd: ubi: Use mtd_all_ff/mtd_check_pattern Sascha Hauer
2016-03-15 11:15 ` [PATCH 11/16] mtd: ubi: Use mtd_peb_check_all_ff Sascha Hauer
2016-03-15 11:15 ` [PATCH 12/16] mtd: ubi: Use mtd_peb_torture Sascha Hauer
2016-03-15 11:15 ` [PATCH 13/16] mtd: ubi: Use mtd_peb_read Sascha Hauer
2016-03-15 11:15 ` [PATCH 14/16] mtd: ubi: Use mtd_peb_write Sascha Hauer
2016-03-15 11:15 ` [PATCH 15/16] mtd: ubi: Use mtd_peb_erase Sascha Hauer
2016-03-15 11:15 ` [PATCH 16/16] mtd: ubi: Make debug options configurable Sascha Hauer

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