diff options
Diffstat (limited to 'drivers/tty/serdev/serdev-ttyport.c')
| -rw-r--r-- | drivers/tty/serdev/serdev-ttyport.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c index 50dc75c4d204..487c88f6aa0e 100644 --- a/drivers/tty/serdev/serdev-ttyport.c +++ b/drivers/tty/serdev/serdev-ttyport.c @@ -176,6 +176,28 @@ static void ttyport_wait_until_sent(struct serdev_controller *ctrl, long timeout tty_wait_until_sent(tty, timeout); } +static int ttyport_get_tiocm(struct serdev_controller *ctrl) +{ + struct serport *serport = serdev_controller_get_drvdata(ctrl); + struct tty_struct *tty = serport->tty; + + if (!tty->ops->tiocmget) + return -ENOTSUPP; + + return tty->driver->ops->tiocmget(tty); +} + +static int ttyport_set_tiocm(struct serdev_controller *ctrl, unsigned int set, unsigned int clear) +{ + struct serport *serport = serdev_controller_get_drvdata(ctrl); + struct tty_struct *tty = serport->tty; + + if (!tty->ops->tiocmset) + return -ENOTSUPP; + + return tty->driver->ops->tiocmset(tty, set, clear); +} + static const struct serdev_controller_ops ctrl_ops = { .write_buf = ttyport_write_buf, .write_flush = ttyport_write_flush, @@ -185,6 +207,8 @@ static const struct serdev_controller_ops ctrl_ops = { .set_flow_control = ttyport_set_flow_control, .set_baudrate = ttyport_set_baudrate, .wait_until_sent = ttyport_wait_until_sent, + .get_tiocm = ttyport_get_tiocm, + .set_tiocm = ttyport_set_tiocm, }; struct device *serdev_tty_port_register(struct tty_port *port, |