qi-hardware/openwrt-xburst
1
0
Fork 0
mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2025-04-21 12:27:27 +03:00
Code Activity

generic: fold yaffs_cvs_2009_04_24 patch to generic/files

Browse Source 
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34012 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2012-10-30 14:58:13 +00:00
parent 405e8aec86
commit 22c66493c9
35 changed files with 3171 additions and 27531 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
target/linux/generic/files/fs/yaffs2/yaffs_ecc.c
View File

@@ -29,7 +29,7 @@
*/
const char *yaffs_ecc_c_version =
"$Id: yaffs_ecc.c,v 1.9 2007-02-14 01:09:06 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;
}