219 static inline int update_mctrl(struct qt2_port_private *port_priv,  in update_mctrl()  argument
222 	struct usb_serial_port *port = port_priv->port;  in update_mctrl()
240 	status = qt2_setregister(dev, port_priv->device_port, UART_MCR,  in update_mctrl()
271 	struct qt2_port_private *port_priv;  in qt2_set_termios()  local
278 	port_priv = usb_get_serial_port_data(port);  in qt2_set_termios()
307 	status = qt2_set_port_config(dev, port_priv->device_port, baud,  in qt2_set_termios()
316 					 port_priv->device_port);  in qt2_set_termios()
319 					 0, port_priv->device_port);  in qt2_set_termios()
328 					 x, port_priv->device_port);  in qt2_set_termios()
331 					 0, port_priv->device_port);  in qt2_set_termios()
342 	struct qt2_port_private *port_priv;  in qt2_open()  local
352 	port_priv = usb_get_serial_port_data(port);  in qt2_open()
382 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_open()
383 	port_priv->shadowLSR = data[0];  in qt2_open()
384 	port_priv->shadowMSR = data[1];  in qt2_open()
385 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_open()
398 	port_priv->device_port = (u8) device_port;  in qt2_open()
410 	struct qt2_port_private *port_priv;  in qt2_close()  local
415 	port_priv = usb_get_serial_port_data(port);  in qt2_close()
417 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_close()
418 	usb_kill_urb(port_priv->write_urb);  in qt2_close()
419 	port_priv->urb_in_use = false;  in qt2_close()
420 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_close()
426 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
436 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
447 			    port_priv->device_port, NULL, 0, QT2_USB_TIMEOUT);  in qt2_close()
532 	struct qt2_port_private *port_priv;  in qt2_process_read_urb()  local
546 	port_priv = usb_get_serial_port_data(port);  in qt2_process_read_urb()
598 				port_priv = usb_get_serial_port_data(port);  in qt2_process_read_urb()
634 	struct qt2_port_private *port_priv;  in qt2_write_bulk_callback()  local
637 	port_priv = usb_get_serial_port_data(port);  in qt2_write_bulk_callback()
639 	spin_lock(&port_priv->urb_lock);  in qt2_write_bulk_callback()
641 	port_priv->urb_in_use = false;  in qt2_write_bulk_callback()
644 	spin_unlock(&port_priv->urb_lock);  in qt2_write_bulk_callback()
743 	struct qt2_port_private *port_priv;  in qt2_port_probe()  local
746 	port_priv = kzalloc(sizeof(*port_priv), GFP_KERNEL);  in qt2_port_probe()
747 	if (!port_priv)  in qt2_port_probe()
750 	spin_lock_init(&port_priv->lock);  in qt2_port_probe()
751 	spin_lock_init(&port_priv->urb_lock);  in qt2_port_probe()
752 	port_priv->port = port;  in qt2_port_probe()
754 	port_priv->write_buffer = kmalloc(QT2_WRITE_BUFFER_SIZE, GFP_KERNEL);  in qt2_port_probe()
755 	if (!port_priv->write_buffer)  in qt2_port_probe()
758 	port_priv->write_urb = usb_alloc_urb(0, GFP_KERNEL);  in qt2_port_probe()
759 	if (!port_priv->write_urb)  in qt2_port_probe()
763 	usb_fill_bulk_urb(port_priv->write_urb, serial->dev,  in qt2_port_probe()
765 				port_priv->write_buffer,  in qt2_port_probe()
769 	usb_set_serial_port_data(port, port_priv);  in qt2_port_probe()
773 	kfree(port_priv->write_buffer);  in qt2_port_probe()
775 	kfree(port_priv);  in qt2_port_probe()
781 	struct qt2_port_private *port_priv;  in qt2_port_remove()  local
783 	port_priv = usb_get_serial_port_data(port);  in qt2_port_remove()
784 	usb_free_urb(port_priv->write_urb);  in qt2_port_remove()
785 	kfree(port_priv->write_buffer);  in qt2_port_remove()
786 	kfree(port_priv);  in qt2_port_remove()
795 	struct qt2_port_private *port_priv = usb_get_serial_port_data(port);  in qt2_tiocmget()  local
803 	r = qt2_getregister(dev, port_priv->device_port, UART_MCR, d);  in qt2_tiocmget()
807 	r = qt2_getregister(dev, port_priv->device_port, UART_MSR, d + 1);  in qt2_tiocmget()
826 	struct qt2_port_private *port_priv;  in qt2_tiocmset()  local
828 	port_priv = usb_get_serial_port_data(tty->driver_data);  in qt2_tiocmset()
829 	return update_mctrl(port_priv, set, clear);  in qt2_tiocmset()
835 	struct qt2_port_private *port_priv;  in qt2_break_ctl()  local
839 	port_priv = usb_get_serial_port_data(port);  in qt2_break_ctl()
844 				 val, port_priv->device_port);  in qt2_break_ctl()
856 	struct qt2_port_private *port_priv = usb_get_serial_port_data(port);  in qt2_dtr_rts()  local
860 		if (qt2_setregister(dev, port_priv->device_port,  in qt2_dtr_rts()
866 		update_mctrl(port_priv, TIOCM_DTR | TIOCM_RTS, 0);  in qt2_dtr_rts()
868 		update_mctrl(port_priv, 0, TIOCM_DTR | TIOCM_RTS);  in qt2_dtr_rts()
873 	struct qt2_port_private *port_priv;  in qt2_update_msr()  local
877 	port_priv = usb_get_serial_port_data(port);  in qt2_update_msr()
879 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_update_msr()
880 	port_priv->shadowMSR = newMSR;  in qt2_update_msr()
881 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_update_msr()
900 	struct qt2_port_private *port_priv;  in qt2_update_lsr()  local
905 	port_priv = usb_get_serial_port_data(port);  in qt2_update_lsr()
910 	spin_lock_irqsave(&port_priv->lock, flags);  in qt2_update_lsr()
911 	port_priv->shadowLSR = newLSR;  in qt2_update_lsr()
912 	spin_unlock_irqrestore(&port_priv->lock, flags);  in qt2_update_lsr()
936 	struct qt2_port_private *port_priv;  in qt2_write_room()  local
940 	port_priv = usb_get_serial_port_data(port);  in qt2_write_room()
942 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write_room()
944 	if (port_priv->urb_in_use)  in qt2_write_room()
949 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write_room()
958 	struct qt2_port_private *port_priv;  in qt2_write()  local
965 	port_priv = usb_get_serial_port_data(port);  in qt2_write()
967 	if (port_priv->write_urb == NULL) {  in qt2_write()
971 	write_urb = port_priv->write_urb;  in qt2_write()
976 	spin_lock_irqsave(&port_priv->urb_lock, flags);  in qt2_write()
977 	if (port_priv->urb_in_use == true) {  in qt2_write()
984 	*data++ = port_priv->device_port;  in qt2_write()
993 		port_priv->urb_in_use = true;  in qt2_write()
998 	spin_unlock_irqrestore(&port_priv->urb_lock, flags);  in qt2_write()