luck/tmp_suning_uos_patched
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[PATCH] moxa: do not ignore input

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Stop using tty internal structure in mxser_receive_chars(), use
tty_insert_flip_char(tty, ch flag); instead.

Without this change driver ignores any rx'ed chars.

Run tested.

Cc: Alan Cox <alan@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Denis Vlasenko 2005-06-06 13:35:55 -07:00 committed by Linus Torvalds
parent a511718168
commit 3399ba5b70
1 changed files with 13 additions and 25 deletions
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38
drivers/char/mxser.c
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@ -1995,9 +1995,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
unsigned char ch, gdl;
int ignored = 0;
int cnt = 0;
unsigned char *cp;
char *fp;
int count;
int recv_room;
int max = 256;
unsigned long flags;
@ -2011,10 +2008,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
//return;
}
cp = tty->flip.char_buf;
fp = tty->flip.flag_buf;
count = 0;
// following add by Victor Yu. 09-02-2002
if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) {
@ -2041,12 +2034,10 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
}
while (gdl--) {
ch = inb(info->base + UART_RX);
count++;
*cp++ = ch;
*fp++ = 0;
tty_insert_flip_char(tty, ch, 0);
cnt++;
/*
if((count>=HI_WATER) && (info->stop_rx==0)){
if((cnt>=HI_WATER) && (info->stop_rx==0)){
mxser_stoprx(tty);
info->stop_rx=1;
break;
@ -2061,7 +2052,7 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
if (max-- < 0)
break;
/*
if((count>=HI_WATER) && (info->stop_rx==0)){
if((cnt>=HI_WATER) && (info->stop_rx==0)){
mxser_stoprx(tty);
info->stop_rx=1;
break;
@ -2078,36 +2069,33 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
if (++ignored > 100)
break;
} else {
count++;
char flag = 0;
if (*status & UART_LSR_SPECIAL) {
if (*status & UART_LSR_BI) {
*fp++ = TTY_BREAK;
flag = TTY_BREAK;
/* added by casper 1/11/2000 */
info->icount.brk++;
/* */
if (info->flags & ASYNC_SAK)
do_SAK(tty);
} else if (*status & UART_LSR_PE) {
*fp++ = TTY_PARITY;
flag = TTY_PARITY;
/* added by casper 1/11/2000 */
info->icount.parity++;
/* */
} else if (*status & UART_LSR_FE) {
*fp++ = TTY_FRAME;
flag = TTY_FRAME;
/* added by casper 1/11/2000 */
info->icount.frame++;
/* */
} else if (*status & UART_LSR_OE) {
*fp++ = TTY_OVERRUN;
flag = TTY_OVERRUN;
/* added by casper 1/11/2000 */
info->icount.overrun++;
/* */
} else
*fp++ = 0;
} else
*fp++ = 0;
*cp++ = ch;
}
}
tty_insert_flip_char(tty, ch, flag);
cnt++;
if (cnt >= recv_room) {
if (!info->ldisc_stop_rx) {
@ -2132,13 +2120,13 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
// above add by Victor Yu. 09-02-2002
} while (*status & UART_LSR_DR);
end_intr: // add by Victor Yu. 09-02-2002
end_intr: // add by Victor Yu. 09-02-2002
mxvar_log.rxcnt[info->port] += cnt;
info->mon_data.rxcnt += cnt;
info->mon_data.up_rxcnt += cnt;
spin_unlock_irqrestore(&info->slock, flags);
tty_flip_buffer_push(tty);
}