redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

USB: ark3116: Add cmset and break

Browse source 
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Cc: Mike McCormack <mikem@ring3k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
bart.hartgers@gmail.com 2009-10-28 10:43:28 +01:00 committed by Greg Kroah-Hartman
parent 1f71910513
commit 546b742968
1 changed files with 56 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

56
drivers/usb/serial/ark3116.c
View file

@ -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,
@ -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)