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()
304 	status = qt2_set_port_config(dev, port_priv->device_port, baud,  in qt2_set_termios()
313 					 port_priv->device_port);  in qt2_set_termios()
316 					 0, port_priv->device_port);  in qt2_set_termios()
325 					 x, port_priv->device_port);  in qt2_set_termios()
328 					 0, port_priv->device_port);  in qt2_set_termios()
339 	struct qt2_port_private *port_priv;  in qt2_open()  local
349 	port_priv = usb_get_serial_port_data(port);  in qt2_open()
381 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_open()
382 	port_priv->shadowLSR = data[0];  in qt2_open()
383 	port_priv->shadowMSR = data[1];  in qt2_open()
384 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_open()
397 	port_priv->device_port = (u8) device_port;  in qt2_open()
409 	struct qt2_port_private *port_priv;  in qt2_close()  local
413 	port_priv = usb_get_serial_port_data(port);  in qt2_close()
415 	usb_kill_urb(port_priv->write_urb);  in qt2_close()
421 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
431 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
442 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
584 	struct qt2_port_private *port_priv;  in qt2_write_bulk_callback()  local
588 	port_priv = usb_get_serial_port_data(port);  in qt2_write_bulk_callback()
590 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write_bulk_callback()
592 	port_priv->urb_in_use = false;  in qt2_write_bulk_callback()
595 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write_bulk_callback()
694 	struct qt2_port_private *port_priv;  in qt2_port_probe()  local
697 	port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL);  in qt2_port_probe()
698 	if (!port_priv)  in qt2_port_probe()
701 	spin_lock_init(&port_priv->lock);  in qt2_port_probe()
702 	spin_lock_init(&port_priv->urb_lock);  in qt2_port_probe()
703 	port_priv->port = port;  in qt2_port_probe()
705 	port_priv->write_buffer = kmalloc(QT2_WRITE_BUFFER_SIZE, GFP_KERNEL);  in qt2_port_probe()
706 	if (!port_priv->write_buffer)  in qt2_port_probe()
709 	port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL);  in qt2_port_probe()
710 	if (!port_priv->write_urb)  in qt2_port_probe()
714 	usb_fill_bulk_urb(port_priv->write_urb, serial->dev,  in qt2_port_probe()
716 				port_priv->write_buffer,  in qt2_port_probe()
720 	usb_set_serial_port_data(port, port_priv);  in qt2_port_probe()
724 	kfree(port_priv->write_buffer);  in qt2_port_probe()
726 	kfree(port_priv);  in qt2_port_probe()
732 	struct qt2_port_private *port_priv;  in qt2_port_remove()  local
734 	port_priv = usb_get_serial_port_data(port);  in qt2_port_remove()
735 	usb_free_urb(port_priv->write_urb);  in qt2_port_remove()
736 	kfree(port_priv->write_buffer);  in qt2_port_remove()
737 	kfree(port_priv);  in qt2_port_remove()
746 	struct qt2_port_private *port_priv = usb_get_serial_port_data(port);  in qt2_tiocmget()  local
754 	r = qt2_getregister(dev, port_priv->device_port, UART_MCR, d);  in qt2_tiocmget()
758 	r = qt2_getregister(dev, port_priv->device_port, UART_MSR, d + 1);  in qt2_tiocmget()
777 	struct qt2_port_private *port_priv;  in qt2_tiocmset()  local
779 	port_priv = usb_get_serial_port_data(tty->driver_data);  in qt2_tiocmset()
780 	return update_mctrl(port_priv, set, clear);  in qt2_tiocmset()
786 	struct qt2_port_private *port_priv;  in qt2_break_ctl()  local
790 	port_priv = usb_get_serial_port_data(port);  in qt2_break_ctl()
795 				 val, port_priv->device_port);  in qt2_break_ctl()
807 	struct qt2_port_private *port_priv = usb_get_serial_port_data(port);  in qt2_dtr_rts()  local
811 		if (qt2_setregister(dev, port_priv->device_port,  in qt2_dtr_rts()
817 		update_mctrl(port_priv, TIOCM_DTR | TIOCM_RTS, 0);  in qt2_dtr_rts()
819 		update_mctrl(port_priv, 0, TIOCM_DTR | TIOCM_RTS);  in qt2_dtr_rts()
824 	struct qt2_port_private *port_priv;  in qt2_update_msr()  local
829 	port_priv = usb_get_serial_port_data(port);  in qt2_update_msr()
830 	if (!port_priv)  in qt2_update_msr()
833 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_update_msr()
834 	port_priv->shadowMSR = newMSR;  in qt2_update_msr()
835 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_update_msr()
854 	struct qt2_port_private *port_priv;  in qt2_update_lsr()  local
860 	port_priv = usb_get_serial_port_data(port);  in qt2_update_lsr()
861 	if (!port_priv)  in qt2_update_lsr()
867 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_update_lsr()
868 	port_priv->shadowLSR = newLSR;  in qt2_update_lsr()
869 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_update_lsr()
893 	struct qt2_port_private *port_priv;  in qt2_write_room()  local
897 	port_priv = usb_get_serial_port_data(port);  in qt2_write_room()
899 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write_room()
901 	if (port_priv->urb_in_use)  in qt2_write_room()
906 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write_room()
915 	struct qt2_port_private *port_priv;  in qt2_write()  local
922 	port_priv = usb_get_serial_port_data(port);  in qt2_write()
924 	if (port_priv->write_urb == NULL) {  in qt2_write()
928 	write_urb = port_priv->write_urb;  in qt2_write()
933 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write()
934 	if (port_priv->urb_in_use) {  in qt2_write()
941 	*data++ = port_priv->device_port;  in qt2_write()
950 		port_priv->urb_in_use = true;  in qt2_write()
955 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write()