[PATCH] moxa: do not ignore input
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>
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 7a24506..f022f09 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -1995,9 +1995,6 @@
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 @@
//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 @@
}
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 @@
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 @@
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 @@
// 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);
}