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Commit 0a4142fb authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: quatech2: switch to generic get_icount implementation 



Switch to the generic get_icount implementation.

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6d0cad65

drivers/usb/serial/quatech2.c

+12 −39
Original line number Diff line number Diff line
@@ -128,8 +128,6 @@ struct qt2_port_private { 
	u8          shadowLSR;

	u8          shadowMSR;



	struct async_icount icount;



	struct usb_serial_port *port;

};
@@ -501,16 +499,16 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) 
	unsigned long flags;



	spin_lock_irqsave(&priv->lock, flags);

	prev = priv->icount;

	prev = port->icount;

	spin_unlock_irqrestore(&priv->lock, flags);



	while (1) {

		wait_event_interruptible(port->delta_msr_wait,

					 (port->serial->disconnected ||

					  (priv->icount.rng != prev.rng) ||

					  (priv->icount.dsr != prev.dsr) ||

					  (priv->icount.dcd != prev.dcd) ||

					  (priv->icount.cts != prev.cts)));

					  (port->icount.rng != prev.rng) ||

					  (port->icount.dsr != prev.dsr) ||

					  (port->icount.dcd != prev.dcd) ||

					  (port->icount.cts != prev.cts)));



		if (signal_pending(current))

			return -ERESTARTSYS;
@@ -519,7 +517,7 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) 
			return -EIO;



		spin_lock_irqsave(&priv->lock, flags);

		cur = priv->icount;

		cur = port->icount;

		spin_unlock_irqrestore(&priv->lock, flags);



		if ((prev.rng == cur.rng) &&
@@ -537,28 +535,6 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg) 
	return 0;

}



static int qt2_get_icount(struct tty_struct *tty,

			  struct serial_icounter_struct *icount)

{

	struct usb_serial_port *port = tty->driver_data;

	struct qt2_port_private *priv = usb_get_serial_port_data(port);

	struct async_icount cnow = priv->icount;



	icount->cts = cnow.cts;

	icount->dsr = cnow.dsr;

	icount->rng = cnow.rng;

	icount->dcd = cnow.dcd;

	icount->rx = cnow.rx;

	icount->tx = cnow.tx;

	icount->frame = cnow.frame;

	icount->overrun = cnow.overrun;

	icount->parity = cnow.parity;

	icount->brk = cnow.brk;

	icount->buf_overrun = cnow.buf_overrun;



	return 0;

}



static int qt2_ioctl(struct tty_struct *tty,

		     unsigned int cmd, unsigned long arg)

{
@@ -958,16 +934,13 @@ static void qt2_update_msr(struct usb_serial_port *port, unsigned char *ch) 
	if (newMSR & UART_MSR_ANY_DELTA) {

		/* update input line counters */

		if (newMSR & UART_MSR_DCTS)

			port_priv->icount.cts++;



			port->icount.cts++;

		if (newMSR & UART_MSR_DDSR)

			port_priv->icount.dsr++;



			port->icount.dsr++;

		if (newMSR & UART_MSR_DDCD)

			port_priv->icount.dcd++;



			port->icount.dcd++;

		if (newMSR & UART_MSR_TERI)

			port_priv->icount.rng++;

			port->icount.rng++;



		wake_up_interruptible(&port->delta_msr_wait);

	}
@@ -989,7 +962,7 @@ static void qt2_update_lsr(struct usb_serial_port *port, unsigned char *ch) 
	port_priv->shadowLSR = newLSR;

	spin_unlock_irqrestore(&port_priv->lock, flags);



	icount = &port_priv->icount;

	icount = &port->icount;



	if (newLSR & UART_LSR_BRK_ERROR_BITS) {
@@ -1099,7 +1072,7 @@ static struct usb_serial_driver qt2_device = { 
	.break_ctl           = qt2_break_ctl,

	.tiocmget            = qt2_tiocmget,

	.tiocmset            = qt2_tiocmset,

	.get_icount	     = qt2_get_icount,

	.get_icount	     = usb_serial_generic_get_icount,

	.ioctl               = qt2_ioctl,

	.set_termios         = qt2_set_termios,

};