215 static inline int update_mctrl(struct qt2_port_private *port_priv,  in update_mctrl()  argument
218 	struct usb_serial_port *port = port_priv->port;  in update_mctrl()
236 	status = qt2_setregister(dev, port_priv->device_port, UART_MCR,  in update_mctrl()
268 	struct qt2_port_private *port_priv;  in qt2_set_termios()  local
275 	port_priv = usb_get_serial_port_data(port);  in qt2_set_termios()
290 	status = qt2_set_port_config(dev, port_priv->device_port, baud,  in qt2_set_termios()
299 					 port_priv->device_port);  in qt2_set_termios()
302 					 0, port_priv->device_port);  in qt2_set_termios()
311 					 x, port_priv->device_port);  in qt2_set_termios()
314 					 0, port_priv->device_port);  in qt2_set_termios()
325 	struct qt2_port_private *port_priv;  in qt2_open()  local
335 	port_priv = usb_get_serial_port_data(port);  in qt2_open()
367 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_open()
368 	port_priv->shadowLSR = data[0];  in qt2_open()
369 	port_priv->shadowMSR = data[1];  in qt2_open()
370 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_open()
383 	port_priv->device_port = (u8) device_port;  in qt2_open()
395 	struct qt2_port_private *port_priv;  in qt2_close()  local
399 	port_priv = usb_get_serial_port_data(port);  in qt2_close()
401 	usb_kill_urb(port_priv->write_urb);  in qt2_close()
407 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
417 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
428 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
555 	struct qt2_port_private *port_priv;  in qt2_write_bulk_callback()  local
559 	port_priv = usb_get_serial_port_data(port);  in qt2_write_bulk_callback()
561 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write_bulk_callback()
563 	port_priv->urb_in_use = false;  in qt2_write_bulk_callback()
566 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write_bulk_callback()
665 	struct qt2_port_private *port_priv;  in qt2_port_probe()  local
668 	port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL);  in qt2_port_probe()
669 	if (!port_priv)  in qt2_port_probe()
672 	spin_lock_init(&port_priv->lock);  in qt2_port_probe()
673 	spin_lock_init(&port_priv->urb_lock);  in qt2_port_probe()
674 	port_priv->port = port;  in qt2_port_probe()
676 	port_priv->write_buffer = kmalloc(QT2_WRITE_BUFFER_SIZE, GFP_KERNEL);  in qt2_port_probe()
677 	if (!port_priv->write_buffer)  in qt2_port_probe()
680 	port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL);  in qt2_port_probe()
681 	if (!port_priv->write_urb)  in qt2_port_probe()
685 	usb_fill_bulk_urb(port_priv->write_urb, serial->dev,  in qt2_port_probe()
687 				port_priv->write_buffer,  in qt2_port_probe()
691 	usb_set_serial_port_data(port, port_priv);  in qt2_port_probe()
695 	kfree(port_priv->write_buffer);  in qt2_port_probe()
697 	kfree(port_priv);  in qt2_port_probe()
703 	struct qt2_port_private *port_priv;  in qt2_port_remove()  local
705 	port_priv = usb_get_serial_port_data(port);  in qt2_port_remove()
706 	usb_free_urb(port_priv->write_urb);  in qt2_port_remove()
707 	kfree(port_priv->write_buffer);  in qt2_port_remove()
708 	kfree(port_priv);  in qt2_port_remove()
715 	struct qt2_port_private *port_priv = usb_get_serial_port_data(port);  in qt2_tiocmget()  local
723 	r = qt2_getregister(dev, port_priv->device_port, UART_MCR, d);  in qt2_tiocmget()
727 	r = qt2_getregister(dev, port_priv->device_port, UART_MSR, d + 1);  in qt2_tiocmget()
746 	struct qt2_port_private *port_priv;  in qt2_tiocmset()  local
748 	port_priv = usb_get_serial_port_data(tty->driver_data);  in qt2_tiocmset()
749 	return update_mctrl(port_priv, set, clear);  in qt2_tiocmset()
755 	struct qt2_port_private *port_priv;  in qt2_break_ctl()  local
759 	port_priv = usb_get_serial_port_data(port);  in qt2_break_ctl()
764 				 val, port_priv->device_port);  in qt2_break_ctl()
776 	struct qt2_port_private *port_priv = usb_get_serial_port_data(port);  in qt2_dtr_rts()  local
780 		if (qt2_setregister(dev, port_priv->device_port,  in qt2_dtr_rts()
786 		update_mctrl(port_priv, TIOCM_DTR | TIOCM_RTS, 0);  in qt2_dtr_rts()
788 		update_mctrl(port_priv, 0, TIOCM_DTR | TIOCM_RTS);  in qt2_dtr_rts()
793 	struct qt2_port_private *port_priv;  in qt2_update_msr()  local
798 	port_priv = usb_get_serial_port_data(port);  in qt2_update_msr()
799 	if (!port_priv)  in qt2_update_msr()
802 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_update_msr()
803 	port_priv->shadowMSR = newMSR;  in qt2_update_msr()
804 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_update_msr()
823 	struct qt2_port_private *port_priv;  in qt2_update_lsr()  local
829 	port_priv = usb_get_serial_port_data(port);  in qt2_update_lsr()
830 	if (!port_priv)  in qt2_update_lsr()
836 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_update_lsr()
837 	port_priv->shadowLSR = newLSR;  in qt2_update_lsr()
838 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_update_lsr()
862 	struct qt2_port_private *port_priv;  in qt2_write_room()  local
866 	port_priv = usb_get_serial_port_data(port);  in qt2_write_room()
868 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write_room()
870 	if (port_priv->urb_in_use)  in qt2_write_room()
875 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write_room()
884 	struct qt2_port_private *port_priv;  in qt2_write()  local
891 	port_priv = usb_get_serial_port_data(port);  in qt2_write()
893 	if (port_priv->write_urb == NULL) {  in qt2_write()
897 	write_urb = port_priv->write_urb;  in qt2_write()
902 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write()
903 	if (port_priv->urb_in_use) {  in qt2_write()
910 	*data++ = port_priv->device_port;  in qt2_write()
919 		port_priv->urb_in_use = true;  in qt2_write()
924 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write()