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Commit 546b7429 authored by bart.hartgers@gmail.com's avatar bart.hartgers@gmail.com Committed by Greg Kroah-Hartman
Browse files

USB: ark3116: Add cmset and break 



Signed-off-by: default avatarBart Hartgers <bart.hartgers@gmail.com>
Cc: Mike McCormack <mikem@ring3k.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 1f719105

drivers/usb/serial/ark3116.c

+56 −0
Original line number Diff line number Diff line
@@ -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)