moxa: first pass at termios reporting
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 2fc255a..64b7b2b 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -207,7 +207,7 @@
static int moxa_tiocmset(struct tty_struct *tty, struct file *file,
unsigned int set, unsigned int clear);
static void moxa_poll(unsigned long);
-static void moxa_set_tty_param(struct tty_struct *);
+static void moxa_set_tty_param(struct tty_struct *, struct ktermios *);
static int moxa_block_till_ready(struct tty_struct *, struct file *,
struct moxa_port *);
static void moxa_setup_empty_event(struct tty_struct *);
@@ -500,7 +500,7 @@
ch->tty = tty;
if (!(ch->asyncflags & ASYNC_INITIALIZED)) {
ch->statusflags = 0;
- moxa_set_tty_param(tty);
+ moxa_set_tty_param(tty, tty->termios);
MoxaPortLineCtrl(ch->port, 1, 1);
MoxaPortEnable(ch->port);
ch->asyncflags |= ASYNC_INITIALIZED;
@@ -803,7 +803,7 @@
if (ch == NULL)
return;
- moxa_set_tty_param(tty);
+ moxa_set_tty_param(tty, old_termios);
if (!(old_termios->c_cflag & CLOCAL) &&
(tty->termios->c_cflag & CLOCAL))
wake_up_interruptible(&ch->open_wait);
@@ -903,11 +903,11 @@
/******************************************************************************/
-static void moxa_set_tty_param(struct tty_struct *tty)
+static void moxa_set_tty_param(struct tty_struct *tty, struct ktermios *old_termios)
{
register struct ktermios *ts;
struct moxa_port *ch;
- int rts, cts, txflow, rxflow, xany;
+ int rts, cts, txflow, rxflow, xany, baud;
ch = (struct moxa_port *) tty->driver_data;
ts = tty->termios;
@@ -924,8 +924,15 @@
rxflow = 1;
if (ts->c_iflag & IXANY)
xany = 1;
+
+ /* Clear the features we don't support */
+ ts->c_cflag &= ~CMSPAR;
MoxaPortFlowCtrl(ch->port, rts, cts, txflow, rxflow, xany);
- MoxaPortSetTermio(ch->port, ts, tty_get_baud_rate(tty));
+ baud = MoxaPortSetTermio(ch->port, ts, tty_get_baud_rate(tty));
+ if (baud == -1)
+ baud = tty_termios_baud_rate(old_termios);
+ /* Not put the baud rate into the termios data */
+ tty_encode_baud_rate(tty, baud, baud);
}
static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp,
@@ -2065,7 +2072,7 @@
if (baud >= 921600L)
return (-1);
}
- MoxaPortSetBaud(port, baud);
+ baud = MoxaPortSetBaud(port, baud);
if (termio->c_iflag & (IXON | IXOFF | IXANY)) {
writeb(termio->c_cc[VSTART], ofsAddr + FuncArg);
@@ -2074,7 +2081,7 @@
moxa_wait_finish(ofsAddr);
}
- return (0);
+ return (baud);
}
int MoxaPortGetLineOut(int port, int *dtrState, int *rtsState)