207 static inline int update_mctrl(struct qt2_port_private *port_priv,  in update_mctrl()  argument
210 	struct usb_serial_port *port = port_priv->port;  in update_mctrl()
228 	status = qt2_setregister(dev, port_priv->device_port, UART_MCR,  in update_mctrl()
260 	struct qt2_port_private *port_priv;  in qt2_set_termios()  local
267 	port_priv = usb_get_serial_port_data(port);  in qt2_set_termios()
282 	status = qt2_set_port_config(dev, port_priv->device_port, baud,  in qt2_set_termios()
291 					 port_priv->device_port);  in qt2_set_termios()
294 					 0, port_priv->device_port);  in qt2_set_termios()
303 					 x, port_priv->device_port);  in qt2_set_termios()
306 					 0, port_priv->device_port);  in qt2_set_termios()
317 	struct qt2_port_private *port_priv;  in qt2_open()  local
327 	port_priv = usb_get_serial_port_data(port);  in qt2_open()
359 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_open()
360 	port_priv->shadowLSR = data[0];  in qt2_open()
361 	port_priv->shadowMSR = data[1];  in qt2_open()
362 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_open()
375 	port_priv->device_port = (u8) device_port;  in qt2_open()
387 	struct qt2_port_private *port_priv;  in qt2_close()  local
391 	port_priv = usb_get_serial_port_data(port);  in qt2_close()
393 	usb_kill_urb(port_priv->write_urb);  in qt2_close()
399 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
409 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
420 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
547 	struct qt2_port_private *port_priv;  in qt2_write_bulk_callback()  local
551 	port_priv = usb_get_serial_port_data(port);  in qt2_write_bulk_callback()
553 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write_bulk_callback()
555 	port_priv->urb_in_use = false;  in qt2_write_bulk_callback()
558 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write_bulk_callback()
657 	struct qt2_port_private *port_priv;  in qt2_port_probe()  local
660 	port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL);  in qt2_port_probe()
661 	if (!port_priv)  in qt2_port_probe()
664 	spin_lock_init(&port_priv->lock);  in qt2_port_probe()
665 	spin_lock_init(&port_priv->urb_lock);  in qt2_port_probe()
666 	port_priv->port = port;  in qt2_port_probe()
668 	port_priv->write_buffer = kmalloc(QT2_WRITE_BUFFER_SIZE, GFP_KERNEL);  in qt2_port_probe()
669 	if (!port_priv->write_buffer)  in qt2_port_probe()
672 	port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL);  in qt2_port_probe()
673 	if (!port_priv->write_urb)  in qt2_port_probe()
677 	usb_fill_bulk_urb(port_priv->write_urb, serial->dev,  in qt2_port_probe()
679 				port_priv->write_buffer,  in qt2_port_probe()
683 	usb_set_serial_port_data(port, port_priv);  in qt2_port_probe()
687 	kfree(port_priv->write_buffer);  in qt2_port_probe()
689 	kfree(port_priv);  in qt2_port_probe()
695 	struct qt2_port_private *port_priv;  in qt2_port_remove()  local
697 	port_priv = usb_get_serial_port_data(port);  in qt2_port_remove()
698 	usb_free_urb(port_priv->write_urb);  in qt2_port_remove()
699 	kfree(port_priv->write_buffer);  in qt2_port_remove()
700 	kfree(port_priv);  in qt2_port_remove()
707 	struct qt2_port_private *port_priv = usb_get_serial_port_data(port);  in qt2_tiocmget()  local
715 	r = qt2_getregister(dev, port_priv->device_port, UART_MCR, d);  in qt2_tiocmget()
719 	r = qt2_getregister(dev, port_priv->device_port, UART_MSR, d + 1);  in qt2_tiocmget()
738 	struct qt2_port_private *port_priv;  in qt2_tiocmset()  local
740 	port_priv = usb_get_serial_port_data(tty->driver_data);  in qt2_tiocmset()
741 	return update_mctrl(port_priv, set, clear);  in qt2_tiocmset()
747 	struct qt2_port_private *port_priv;  in qt2_break_ctl()  local
751 	port_priv = usb_get_serial_port_data(port);  in qt2_break_ctl()
756 				 val, port_priv->device_port);  in qt2_break_ctl()
772 	struct qt2_port_private *port_priv = usb_get_serial_port_data(port);  in qt2_dtr_rts()  local
776 		if (qt2_setregister(dev, port_priv->device_port,  in qt2_dtr_rts()
782 		update_mctrl(port_priv, TIOCM_DTR | TIOCM_RTS, 0);  in qt2_dtr_rts()
784 		update_mctrl(port_priv, 0, TIOCM_DTR | TIOCM_RTS);  in qt2_dtr_rts()
789 	struct qt2_port_private *port_priv;  in qt2_update_msr()  local
794 	port_priv = usb_get_serial_port_data(port);  in qt2_update_msr()
795 	if (!port_priv)  in qt2_update_msr()
798 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_update_msr()
799 	port_priv->shadowMSR = newMSR;  in qt2_update_msr()
800 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_update_msr()
819 	struct qt2_port_private *port_priv;  in qt2_update_lsr()  local
825 	port_priv = usb_get_serial_port_data(port);  in qt2_update_lsr()
826 	if (!port_priv)  in qt2_update_lsr()
832 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_update_lsr()
833 	port_priv->shadowLSR = newLSR;  in qt2_update_lsr()
834 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_update_lsr()
858 	struct qt2_port_private *port_priv;  in qt2_write_room()  local
862 	port_priv = usb_get_serial_port_data(port);  in qt2_write_room()
864 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write_room()
866 	if (port_priv->urb_in_use)  in qt2_write_room()
871 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write_room()
880 	struct qt2_port_private *port_priv;  in qt2_write()  local
887 	port_priv = usb_get_serial_port_data(port);  in qt2_write()
889 	if (port_priv->write_urb == NULL) {  in qt2_write()
893 	write_urb = port_priv->write_urb;  in qt2_write()
898 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write()
899 	if (port_priv->urb_in_use) {  in qt2_write()
906 	*data++ = port_priv->device_port;  in qt2_write()
915 		port_priv->urb_in_use = true;  in qt2_write()
920 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write()