mtd/drivers/mtd mtdpart.c,1.28,1.29

[gleixner at infradead.org]

Update of /home/cvs/mtd/drivers/mtd
In directory phoenix.infradead.org:/tmp/cvs-serv16674

Modified Files:
	mtdpart.c 
Log Message:
ecc functions added

Index: mtdpart.c
===================================================================
RCS file: /home/cvs/mtd/drivers/mtd/mtdpart.c,v
retrieving revision 1.28
retrieving revision 1.29
diff -u -r1.28 -r1.29
--- mtdpart.c	10 Jul 2002 08:27:09 -0000	1.28
+++ mtdpart.c	29 Aug 2002 21:46:43 -0000	1.29
@@ -58,6 +58,18 @@
 					len, retlen, buf);
 }
 
+static int part_read_ecc (struct mtd_info *mtd, loff_t from, size_t len, 
+			size_t *retlen, u_char *buf, u_char *eccbuf, int oobsel)
+{
+	struct mtd_part *part = PART(mtd);
+	if (from >= mtd->size)
+		len = 0;
+	else if (from + len > mtd->size)
+		len = mtd->size - from;
+	return part->master->read_ecc (part->master, from + part->offset, 
+					len, retlen, buf, eccbuf, oobsel);
+}
+
 static int part_read_oob (struct mtd_info *mtd, loff_t from, size_t len, 
 			size_t *retlen, u_char *buf)
 {
@@ -100,6 +112,21 @@
 					len, retlen, buf);
 }
 
+static int part_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
+			size_t *retlen, const u_char *buf,
+			 u_char *eccbuf, int oobsel)
+{
+	struct mtd_part *part = PART(mtd);
+	if (!(mtd->flags & MTD_WRITEABLE))
+		return -EROFS;
+	if (to >= mtd->size)
+		len = 0;
+	else if (to + len > mtd->size)
+		len = mtd->size - to;
+	return part->master->write_ecc (part->master, to + part->offset, 
+					len, retlen, buf, eccbuf, oobsel);
+}
+
 static int part_write_oob (struct mtd_info *mtd, loff_t to, size_t len,
 			size_t *retlen, const u_char *buf)
 {
@@ -140,6 +167,28 @@
 					from + part->offset, retlen);
 }
 
+static int part_writev_ecc (struct mtd_info *mtd,  const struct iovec *vecs,
+			 unsigned long count, loff_t to, size_t *retlen,
+			 u_char *eccbuf, int oobsel)
+{
+	struct mtd_part *part = PART(mtd);
+	if (!(mtd->flags & MTD_WRITEABLE))
+		return -EROFS;
+	return part->master->writev_ecc (part->master, vecs, count,
+					to + part->offset, retlen,
+					eccbuf, oobsel);
+}
+
+static int part_readv_ecc (struct mtd_info *mtd,  struct iovec *vecs,
+			 unsigned long count, loff_t from, size_t *retlen,
+			 u_char *eccbuf, int oobsel)
+{
+	struct mtd_part *part = PART(mtd);
+	return part->master->readv_ecc (part->master, vecs, count,
+					from + part->offset, retlen, 
+					eccbuf, oobsel);
+}
+
 static int part_erase (struct mtd_info *mtd, struct erase_info *instr)
 {
 	struct mtd_part *part = PART(mtd);
@@ -257,7 +306,11 @@
 
 		slave->mtd.read = part_read;
 		slave->mtd.write = part_write;
-
+		
+		if (master->read_ecc)
+			slave->mtd.read_ecc = part_read_ecc;
+		if (master->write_ecc)
+			slave->mtd.write_ecc = part_write_ecc;
 		if (master->read_oob)
 			slave->mtd.read_oob = part_read_oob;
 		if (master->write_oob)
@@ -278,6 +331,10 @@
 			slave->mtd.writev = part_writev;
 		if (master->readv)
 			slave->mtd.readv = part_readv;
+		if (master->writev_ecc)
+			slave->mtd.writev_ecc = part_writev_ecc;
+		if (master->readv_ecc)
+			slave->mtd.readv_ecc = part_readv_ecc;
 		if (master->lock)
 			slave->mtd.lock = part_lock;
 		if (master->unlock)