Remove dead and broken code that only served as a reminder to one day
implement modem control.
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
drivers/usb/serial/kl5kusb105.c | 76 +++++------------------------------------
1 file changed, 8 insertions(+), 68 deletions(-)
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index e6e083dace4b..7550cf6c5f7c 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -89,7 +89,6 @@ static struct usb_serial_driver kl5kusb105d_device = {
.open = klsi_105_open,
.close = klsi_105_close,
.set_termios = klsi_105_set_termios,
- /*.break_ctl = klsi_105_break_ctl,*/
.tiocmget = klsi_105_tiocmget,
.port_probe = klsi_105_port_probe,
.port_remove = klsi_105_port_remove,
@@ -438,19 +437,6 @@ static void klsi_105_set_termios(struct tty_struct *tty,
*/
baud = tty_get_baud_rate(tty);
- if ((cflag & CBAUD) != (old_cflag & CBAUD)) {
- /* reassert DTR and (maybe) RTS on transition from B0 */
- if ((old_cflag & CBAUD) == B0) {
- dev_dbg(dev, "%s: baud was B0\n", __func__);
-#if 0
- priv->control_state |= TIOCM_DTR;
- /* don't set RTS if using hardware flow control */
- if (!(old_cflag & CRTSCTS))
- priv->control_state |= TIOCM_RTS;
- mct_u232_set_modem_ctrl(serial, priv->control_state);
-#endif
- }
- }
switch (baud) {
case 0: /* handled below */
break;
@@ -484,17 +470,14 @@ static void klsi_105_set_termios(struct tty_struct *tty,
baud = 9600;
break;
}
- if ((cflag & CBAUD) == B0) {
- dev_dbg(dev, "%s: baud is B0\n", __func__);
- /* Drop RTS and DTR */
- /* maybe this should be simulated by sending read
- * disable and read enable messages?
- */
-#if 0
- priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS);
- mct_u232_set_modem_ctrl(serial, priv->control_state);
-#endif
- }
+
+ /*
+ * FIXME: implement B0 handling
+ *
+ * Maybe this should be simulated by sending read disable and read
+ * enable messages?
+ */
+
tty_encode_baud_rate(tty, baud, baud);
if ((cflag & CSIZE) != (old_cflag & CSIZE)) {
@@ -528,22 +511,6 @@ static void klsi_105_set_termios(struct tty_struct *tty,
|| (cflag & CSTOPB) != (old_cflag & CSTOPB)) {
/* Not currently supported */
tty->termios.c_cflag &= ~(PARENB|PARODD|CSTOPB);
-#if 0
- priv->last_lcr = 0;
-
- /* set the parity */
- if (cflag & PARENB)
- priv->last_lcr |= (cflag & PARODD) ?
- MCT_U232_PARITY_ODD : MCT_U232_PARITY_EVEN;
- else
- priv->last_lcr |= MCT_U232_PARITY_NONE;
-
- /* set the number of stop bits */
- priv->last_lcr |= (cflag & CSTOPB) ?
- MCT_U232_STOP_BITS_2 : MCT_U232_STOP_BITS_1;
-
- mct_u232_set_line_ctrl(serial, priv->last_lcr);
-#endif
}
/*
* Set flow control: well, I do not really now how to handle DTR/RTS.
@@ -554,14 +521,6 @@ static void klsi_105_set_termios(struct tty_struct *tty,
|| (cflag & CRTSCTS) != (old_cflag & CRTSCTS)) {
/* Not currently supported */
tty->termios.c_cflag &= ~CRTSCTS;
- /* Drop DTR/RTS if no flow control otherwise assert */
-#if 0
- if ((iflag & IXOFF) || (iflag & IXON) || (cflag & CRTSCTS))
- priv->control_state |= TIOCM_DTR | TIOCM_RTS;
- else
- priv->control_state &= ~(TIOCM_DTR | TIOCM_RTS);
- mct_u232_set_modem_ctrl(serial, priv->control_state);
-#endif
}
memcpy(cfg, &priv->cfg, sizeof(*cfg));
spin_unlock_irqrestore(&priv->lock, flags);
@@ -572,25 +531,6 @@ static void klsi_105_set_termios(struct tty_struct *tty,
kfree(cfg);
}
-#if 0
-static void mct_u232_break_ctl(struct tty_struct *tty, int break_state)
-{
- struct usb_serial_port *port = tty->driver_data;
- struct usb_serial *serial = port->serial;
- struct mct_u232_private *priv =
- (struct mct_u232_private *)port->private;
- unsigned char lcr = priv->last_lcr;
-
- dev_dbg(&port->dev, "%s - state=%d\n", __func__, break_state);
-
- /* LOCKING */
- if (break_state)
- lcr |= MCT_U232_SET_BREAK;
-
- mct_u232_set_line_ctrl(serial, lcr);
-}
-#endif
-
static int klsi_105_tiocmget(struct tty_struct *tty)
{
struct usb_serial_port *port = tty->driver_data;
--
2.10.2
--
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