Revision 2709781be6141798162f1089df728fb218a590df authored by Ben Dooks on 01 July 2008, 10:59:41 UTC, committed by Ben Dooks on 01 July 2008, 13:30:37 UTC
We should check for the reception of an ACK after transmitting each data byte. The address send has been correctly checking this, but the data write byte state should have also been checking for these failures. As part of the same fix, we remove the ACK checking from the receive path where it should not have been checking for an ACK which our hardware was sending. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
1 parent e1441b9
nls_koi8-ru.c
/*
* linux/fs/nls/nls_koi8-ru.c
*
* Charset koi8-ru translation based on charset koi8-u.
* The Unicode to charset table has only exact mappings.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/nls.h>
#include <linux/errno.h>
static struct nls_table *p_nls;
static int uni2char(const wchar_t uni,
unsigned char *out, int boundlen)
{
if (boundlen <= 0)
return -ENAMETOOLONG;
if ((uni & 0xffaf) == 0x040e || (uni & 0xffce) == 0x254c) {
/* koi8-ru and koi8-u differ only on two characters */
if (uni == 0x040e)
out[0] = 0xbe;
else if (uni == 0x045e)
out[0] = 0xae;
else if (uni == 0x255d || uni == 0x256c)
return 0;
else
return p_nls->uni2char(uni, out, boundlen);
return 1;
}
else
/* fast path */
return p_nls->uni2char(uni, out, boundlen);
}
static int char2uni(const unsigned char *rawstring, int boundlen,
wchar_t *uni)
{
int n;
if ((*rawstring & 0xef) != 0xae) {
/* koi8-ru and koi8-u differ only on two characters */
*uni = (*rawstring & 0x10) ? 0x040e : 0x045e;
return 1;
}
n = p_nls->char2uni(rawstring, boundlen, uni);
return n;
}
static struct nls_table table = {
.charset = "koi8-ru",
.uni2char = uni2char,
.char2uni = char2uni,
.owner = THIS_MODULE,
};
static int __init init_nls_koi8_ru(void)
{
p_nls = load_nls("koi8-u");
if (p_nls) {
table.charset2upper = p_nls->charset2upper;
table.charset2lower = p_nls->charset2lower;
return register_nls(&table);
}
return -EINVAL;
}
static void __exit exit_nls_koi8_ru(void)
{
unregister_nls(&table);
unload_nls(p_nls);
}
module_init(init_nls_koi8_ru)
module_exit(exit_nls_koi8_ru)
MODULE_LICENSE("Dual BSD/GPL");
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