56 static inline int metrousb_is_unidirectional_mode(struct usb_serial_port *port)  in metrousb_is_unidirectional_mode()  argument
59 		port->serial->dev->descriptor.idProduct);  in metrousb_is_unidirectional_mode()
64 static int metrousb_send_unidirectional_cmd(u8 cmd, struct usb_serial_port *port)  in metrousb_send_unidirectional_cmd()  argument
70 	if (!metrousb_is_unidirectional_mode(port))  in metrousb_send_unidirectional_cmd()
79 	ret = usb_interrupt_msg(port->serial->dev,  in metrousb_send_unidirectional_cmd()
80 		usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),  in metrousb_send_unidirectional_cmd()
95 	struct usb_serial_port *port = urb->context;  in metrousb_read_int_callback()  local
96 	struct metrousb_private *metro_priv = usb_get_serial_port_data(port);  in metrousb_read_int_callback()
102 	dev_dbg(&port->dev, "%s\n", __func__);  in metrousb_read_int_callback()
112 		dev_dbg(&port->dev,  in metrousb_read_int_callback()
117 		dev_dbg(&port->dev,  in metrousb_read_int_callback()
127 		tty_insert_flip_string(&port->port, data, urb->actual_length);  in metrousb_read_int_callback()
130 		tty_flip_buffer_push(&port->port);  in metrousb_read_int_callback()
140 		usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev,  in metrousb_read_int_callback()
141 				 usb_rcvintpipe(port->serial->dev, port->interrupt_in_endpointAddress),  in metrousb_read_int_callback()
142 				 port->interrupt_in_urb->transfer_buffer,  in metrousb_read_int_callback()
143 				 port->interrupt_in_urb->transfer_buffer_length,  in metrousb_read_int_callback()
144 				 metrousb_read_int_callback, port, 1);  in metrousb_read_int_callback()
146 		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);  in metrousb_read_int_callback()
149 			dev_err(&port->dev,  in metrousb_read_int_callback()
159 		dev_err(&port->dev,  in metrousb_read_int_callback()
166 	struct usb_serial_port *port = urb->context;  in metrousb_write_int_callback()  local
168 	dev_warn(&port->dev, "%s not implemented yet.\n",  in metrousb_write_int_callback()
172 static void metrousb_cleanup(struct usb_serial_port *port)  in metrousb_cleanup()  argument
174 	dev_dbg(&port->dev, "%s\n", __func__);  in metrousb_cleanup()
176 	usb_unlink_urb(port->interrupt_in_urb);  in metrousb_cleanup()
177 	usb_kill_urb(port->interrupt_in_urb);  in metrousb_cleanup()
179 	metrousb_send_unidirectional_cmd(UNI_CMD_CLOSE, port);  in metrousb_cleanup()
182 static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port)  in metrousb_open()  argument
184 	struct usb_serial *serial = port->serial;  in metrousb_open()
185 	struct metrousb_private *metro_priv = usb_get_serial_port_data(port);  in metrousb_open()
189 	dev_dbg(&port->dev, "%s\n", __func__);  in metrousb_open()
192 	if (!port->interrupt_in_urb) {  in metrousb_open()
193 		dev_err(&port->dev, "%s - interrupt urb not initialized\n",  in metrousb_open()
205 	usb_clear_halt(serial->dev, port->interrupt_in_urb->pipe);  in metrousb_open()
208 	usb_fill_int_urb(port->interrupt_in_urb, serial->dev,  in metrousb_open()
209 			  usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress),  in metrousb_open()
210 			   port->interrupt_in_urb->transfer_buffer,  in metrousb_open()
211 			   port->interrupt_in_urb->transfer_buffer_length,  in metrousb_open()
212 			   metrousb_read_int_callback, port, 1);  in metrousb_open()
213 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);  in metrousb_open()
216 		dev_err(&port->dev,  in metrousb_open()
223 	result = metrousb_send_unidirectional_cmd(UNI_CMD_OPEN, port);  in metrousb_open()
225 		dev_err(&port->dev,  in metrousb_open()
231 	dev_dbg(&port->dev, "%s - port open\n", __func__);  in metrousb_open()
262 static int metrousb_port_probe(struct usb_serial_port *port)  in metrousb_port_probe()  argument
272 	usb_set_serial_port_data(port, metro_priv);  in metrousb_port_probe()
277 static int metrousb_port_remove(struct usb_serial_port *port)  in metrousb_port_remove()  argument
281 	metro_priv = usb_get_serial_port_data(port);  in metrousb_port_remove()
289 	struct usb_serial_port *port = tty->driver_data;  in metrousb_throttle()  local
290 	struct metrousb_private *metro_priv = usb_get_serial_port_data(port);  in metrousb_throttle()
304 	struct usb_serial_port *port = tty->driver_data;  in metrousb_tiocmget()  local
305 	struct metrousb_private *metro_priv = usb_get_serial_port_data(port);  in metrousb_tiocmget()
320 	struct usb_serial_port *port = tty->driver_data;  in metrousb_tiocmset()  local
321 	struct usb_serial *serial = port->serial;  in metrousb_tiocmset()
322 	struct metrousb_private *metro_priv = usb_get_serial_port_data(port);  in metrousb_tiocmset()
348 	struct usb_serial_port *port = tty->driver_data;  in metrousb_unthrottle()  local
349 	struct metrousb_private *metro_priv = usb_get_serial_port_data(port);  in metrousb_unthrottle()
361 	port->interrupt_in_urb->dev = port->serial->dev;  in metrousb_unthrottle()
362 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);  in metrousb_unthrottle()