Skip to content

Commit

Permalink
---
Browse files Browse the repository at this point in the history
yaml
---
r: 174938
b: refs/heads/master
c: 546b742
h: refs/heads/master
v: v3
  • Loading branch information
bart.hartgers@gmail.com authored and Greg Kroah-Hartman committed Dec 11, 2009
1 parent 1aa7a69 commit 36b98e4
Show file tree
Hide file tree
Showing 2 changed files with 57 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 1f719105131010cdb9a4b5a3bace21f6b2e095ea
refs/heads/master: 546b742968e7789c60efe0eec71896c45eeb6893
56 changes: 56 additions & 0 deletions trunk/drivers/usb/serial/ark3116.c
Original file line number Diff line number Diff line change
Expand Up @@ -551,6 +551,60 @@ static int ark3116_tiocmget(struct tty_struct *tty, struct file *file)
(ctrl & UART_MCR_OUT2 ? TIOCM_OUT2 : 0);
}

static int ark3116_tiocmset(struct tty_struct *tty, struct file *file,
unsigned set, unsigned clr)
{
struct usb_serial_port *port = tty->driver_data;
struct ark3116_private *priv = usb_get_serial_port_data(port);

/* we need to take the mutex here, to make sure that the value
* in priv->mcr is actually the one that is in the hardware
*/

mutex_lock(&priv->hw_lock);

if (set & TIOCM_RTS)
priv->mcr |= UART_MCR_RTS;
if (set & TIOCM_DTR)
priv->mcr |= UART_MCR_DTR;
if (set & TIOCM_OUT1)
priv->mcr |= UART_MCR_OUT1;
if (set & TIOCM_OUT2)
priv->mcr |= UART_MCR_OUT2;
if (clr & TIOCM_RTS)
priv->mcr &= ~UART_MCR_RTS;
if (clr & TIOCM_DTR)
priv->mcr &= ~UART_MCR_DTR;
if (clr & TIOCM_OUT1)
priv->mcr &= ~UART_MCR_OUT1;
if (clr & TIOCM_OUT2)
priv->mcr &= ~UART_MCR_OUT2;

ark3116_write_reg(port->serial, UART_MCR, priv->mcr);

mutex_unlock(&priv->hw_lock);

return 0;
}

static void ark3116_break_ctl(struct tty_struct *tty, int break_state)
{
struct usb_serial_port *port = tty->driver_data;
struct ark3116_private *priv = usb_get_serial_port_data(port);

/* LCR is also used for other things: protect access */
mutex_lock(&priv->hw_lock);

if (break_state)
priv->lcr |= UART_LCR_SBC;
else
priv->lcr &= ~UART_LCR_SBC;

ark3116_write_reg(port->serial, UART_LCR, priv->lcr);

mutex_unlock(&priv->hw_lock);
}

static struct usb_driver ark3116_driver = {
.name = "ark3116",
.probe = usb_serial_probe,
Expand All @@ -573,8 +627,10 @@ static struct usb_serial_driver ark3116_device = {
.init_termios = ark3116_init_termios,
.ioctl = ark3116_ioctl,
.tiocmget = ark3116_tiocmget,
.tiocmset = ark3116_tiocmset,
.open = ark3116_open,
.close = ark3116_close,
.break_ctl = ark3116_break_ctl,
};

static int __init ark3116_init(void)
Expand Down

0 comments on commit 36b98e4

Please sign in to comment.