X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_ecc.c;h=d037e90a2472c39b032096dd344b5f0f86e9ce97;hp=9f5973a5b69b1be6f80d7ea1bc99923f8ca07a89;hb=3e5718ec7f0df7b76837d10583419b745cb27474;hpb=61dc66b5b6109ad05d8c5705154f9acec9907518

diff --git a/yaffs_ecc.c b/yaffs_ecc.c
index 9f5973a..d037e90 100644
--- a/yaffs_ecc.c
+++ b/yaffs_ecc.c
@@ -29,7 +29,7 @@
  */
 
 const char *yaffs_ecc_c_version =
-    "$Id: yaffs_ecc.c,v 1.10 2007-12-13 15:35:17 wookey Exp $";
+	"$Id: yaffs_ecc.c,v 1.11 2009-03-06 17:20:50 wookey Exp $";
 
 #include "yportenv.h"
 
@@ -109,12 +109,10 @@ void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc)
 		b = column_parity_table[*data++];
 		col_parity ^= b;
 
-		if (b & 0x01)	// odd number of bits in the byte
-		{
+		if (b & 0x01) {		/* odd number of bits in the byte */
 			line_parity ^= i;
 			line_parity_prime ^= ~i;
 		}
-
 	}
 
 	ecc[2] = (~col_parity) | 0x03;
@@ -158,7 +156,7 @@ void yaffs_ECCCalculate(const unsigned char *data, unsigned char *ecc)
 	ecc[0] = ~t;
 
 #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
-	// Swap the bytes into the wrong order
+	/* Swap the bytes into the wrong order */
 	t = ecc[0];
 	ecc[0] = ecc[1];
 	ecc[1] = t;
@@ -189,7 +187,7 @@ int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
 		unsigned bit;
 
 #ifdef CONFIG_YAFFS_ECC_WRONG_ORDER
-		// swap the bytes to correct for the wrong order
+		/* swap the bytes to correct for the wrong order */
 		unsigned char t;
 
 		t = d0;
@@ -251,7 +249,7 @@ int yaffs_ECCCorrect(unsigned char *data, unsigned char *read_ecc,
  * ECCxxxOther does ECC calcs on arbitrary n bytes of data
  */
 void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
-			     yaffs_ECCOther * eccOther)
+				yaffs_ECCOther *eccOther)
 {
 	unsigned int i;
 
@@ -278,8 +276,8 @@ void yaffs_ECCCalculateOther(const unsigned char *data, unsigned nBytes,
 }
 
 int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
-			  yaffs_ECCOther * read_ecc,
-			  const yaffs_ECCOther * test_ecc)
+			yaffs_ECCOther *read_ecc,
+			const yaffs_ECCOther *test_ecc)
 {
 	unsigned char cDelta;	/* column parity delta */
 	unsigned lDelta;	/* line parity delta */
@@ -294,8 +292,7 @@ int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
 		return 0; /* no error */
 
 	if (lDelta == ~lDeltaPrime &&
-	    (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15))
-	{
+	    (((cDelta ^ (cDelta >> 1)) & 0x15) == 0x15)) {
 		/* Single bit (recoverable) error in data */
 
 		bit = 0;
@@ -307,7 +304,7 @@ int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
 		if (cDelta & 0x02)
 			bit |= 0x01;
 
-		if(lDelta >= nBytes)
+		if (lDelta >= nBytes)
 			return -1;
 
 		data[lDelta] ^= (1 << bit);
@@ -316,7 +313,7 @@ int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
 	}
 
 	if ((yaffs_CountBits32(lDelta) + yaffs_CountBits32(lDeltaPrime) +
-	     yaffs_CountBits(cDelta)) == 1) {
+			yaffs_CountBits(cDelta)) == 1) {
 		/* Reccoverable error in ecc */
 
 		*read_ecc = *test_ecc;
@@ -326,6 +323,4 @@ int yaffs_ECCCorrectOther(unsigned char *data, unsigned nBytes,
 	/* Unrecoverable error */
 
 	return -1;
-
 }
-