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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>
hifive-unleashed-5.1
Alan Cox 2008-02-08 04:18:45 -08:00 committed by Linus Torvalds
parent 4edf1827ea
commit 6df3526b66
1 changed files with 8 additions and 10 deletions
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18
drivers/char/rocket.c
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@ -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);