rocket: first pass at termios reporting

Also removes a cflag comparison that caused some mode changes to get wrongly
ignored

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 10 deletions

diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 68c289fe2dc..cbee71bab01 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -715,11 +715,10 @@ static void configure_r_port(struct r_port *info,
         unsigned rocketMode;
         int bits, baud, divisor;
         CHANNEL_t *cp;
+        struct ktermios *t = info->tty->termios;
 
-        if (!info->tty || !info->tty->termios)
-                return;
         cp = &info->channel;
-        cflag = info->tty->termios->c_cflag;
+        cflag = t->c_cflag;
 
         /* Byte size and parity */
         if ((cflag & CSIZE) == CS8) {
@@ -754,10 +753,7 @@ static void configure_r_port(struct r_port *info,
                 baud = 9600;
         divisor = ((rp_baud_base[info->board] + (baud >> 1)) / baud) - 1;
         if ((divisor >= 8192 || divisor < 0) && old_termios) {
-                info->tty->termios->c_cflag &= ~CBAUD;
-                info->tty->termios->c_cflag |=
-                    (old_termios->c_cflag & CBAUD);
-                baud = tty_get_baud_rate(info->tty);
+                baud = tty_termios_baud_rate(old_termios);
                 if (!baud)
                         baud = 9600;
                 divisor = (rp_baud_base[info->board] / baud) - 1;
@@ -769,6 +765,9 @@ static void configure_r_port(struct r_port *info,
         info->cps = baud / bits;
         sSetBaud(cp, divisor);
 
+        /* FIXME: Should really back compute a baud rate from the divisor */
+        tty_encode_baud_rate(info->tty, baud, baud);
+
         if (cflag & CRTSCTS) {
                 info->intmask |= DELTA_CTS;
                 sEnCTSFlowCtl(cp);
@@ -1202,15 +1201,14 @@ static void rp_set_termios(struct tty_struct *tty,
 
         cflag = tty->termios->c_cflag;
 
-        if (cflag == old_termios->c_cflag)
-                return;
-
         /*
          * This driver doesn't support CS5 or CS6
          */
         if (((cflag & CSIZE) == CS5) || ((cflag & CSIZE) == CS6))
                 tty->termios->c_cflag =
                     ((cflag & ~CSIZE) | (old_termios->c_cflag & CSIZE));
+        /* Or CMSPAR */
+        tty->termios->c_cflag &= ~CMSPAR;
 
         configure_r_port(info, old_termios);