122 static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port);
123 static void oti6858_close(struct usb_serial_port *port);
125 			struct usb_serial_port *port, struct ktermios *old);
130 static int oti6858_write(struct tty_struct *tty, struct usb_serial_port *port,
137 static int oti6858_port_probe(struct usb_serial_port *port);
138 static int oti6858_port_remove(struct usb_serial_port *port);
189 	struct usb_serial_port *port;   /* USB port with which associated */  member
196 	struct usb_serial_port *port = priv->port;  in setup_line()  local
209 	result = usb_control_msg(port->serial->dev,  in setup_line()
210 				usb_rcvctrlpipe(port->serial->dev, 0),  in setup_line()
218 		dev_err(&port->dev, "%s(): error reading status\n", __func__);  in setup_line()
233 		result = usb_control_msg(port->serial->dev,  in setup_line()
234 					usb_sndctrlpipe(port->serial->dev, 0),  in setup_line()
252 	dev_dbg(&port->dev, "%s(): submitting interrupt urb\n", __func__);  in setup_line()
253 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);  in setup_line()
255 		dev_err(&port->dev, "%s(): usb_submit_urb() failed with error %d\n",  in setup_line()
264 	struct usb_serial_port *port = priv->port;  in send_data()  local
279 	spin_lock_irqsave(&port->lock, flags);  in send_data()
280 	count = kfifo_len(&port->write_fifo);  in send_data()
281 	spin_unlock_irqrestore(&port->lock, flags);  in send_data()
283 	if (count > port->bulk_out_size)  in send_data()
284 		count = port->bulk_out_size;  in send_data()
291 		result = usb_control_msg(port->serial->dev,  in send_data()
292 				usb_rcvctrlpipe(port->serial->dev, 0),  in send_data()
304 		dev_dbg(&port->dev, "%s(): submitting interrupt urb\n", __func__);  in send_data()
305 		result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);  in send_data()
307 			dev_err(&port->dev, "%s(): usb_submit_urb() failed with error %d\n",  in send_data()
313 	count = kfifo_out_locked(&port->write_fifo,  in send_data()
314 					port->write_urb->transfer_buffer,  in send_data()
315 					count, &port->lock);  in send_data()
316 	port->write_urb->transfer_buffer_length = count;  in send_data()
317 	result = usb_submit_urb(port->write_urb, GFP_NOIO);  in send_data()
319 		dev_err_console(port, "%s(): usb_submit_urb() failed with error %d\n",  in send_data()
324 	usb_serial_port_softint(port);  in send_data()
327 static int oti6858_port_probe(struct usb_serial_port *port)  in oti6858_port_probe()  argument
336 	priv->port = port;  in oti6858_port_probe()
340 	usb_set_serial_port_data(port, priv);  in oti6858_port_probe()
342 	port->port.drain_delay = 256;	/* FIXME: check the FIFO length */  in oti6858_port_probe()
347 static int oti6858_port_remove(struct usb_serial_port *port)  in oti6858_port_remove()  argument
351 	priv = usb_get_serial_port_data(port);  in oti6858_port_remove()
357 static int oti6858_write(struct tty_struct *tty, struct usb_serial_port *port,  in oti6858_write()  argument
363 	count = kfifo_in_locked(&port->write_fifo, buf, count, &port->lock);  in oti6858_write()
370 	struct usb_serial_port *port = tty->driver_data;  in oti6858_write_room()  local
374 	spin_lock_irqsave(&port->lock, flags);  in oti6858_write_room()
375 	room = kfifo_avail(&port->write_fifo);  in oti6858_write_room()
376 	spin_unlock_irqrestore(&port->lock, flags);  in oti6858_write_room()
383 	struct usb_serial_port *port = tty->driver_data;  in oti6858_chars_in_buffer()  local
387 	spin_lock_irqsave(&port->lock, flags);  in oti6858_chars_in_buffer()
388 	chars = kfifo_len(&port->write_fifo);  in oti6858_chars_in_buffer()
389 	spin_unlock_irqrestore(&port->lock, flags);  in oti6858_chars_in_buffer()
403 		struct usb_serial_port *port, struct ktermios *old_termios)  in oti6858_set_termios()  argument
405 	struct oti6858_private *priv = usb_get_serial_port_data(port);  in oti6858_set_termios()
504 static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port)  in oti6858_open()  argument
506 	struct oti6858_private *priv = usb_get_serial_port_data(port);  in oti6858_open()
507 	struct usb_serial *serial = port->serial;  in oti6858_open()
512 	usb_clear_halt(serial->dev, port->write_urb->pipe);  in oti6858_open()
513 	usb_clear_halt(serial->dev, port->read_urb->pipe);  in oti6858_open()
544 	dev_dbg(&port->dev, "%s(): submitting interrupt urb\n", __func__);  in oti6858_open()
545 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);  in oti6858_open()
547 		dev_err(&port->dev, "%s(): usb_submit_urb() failed with error %d\n",  in oti6858_open()
549 		oti6858_close(port);  in oti6858_open()
555 		oti6858_set_termios(tty, port, NULL);  in oti6858_open()
560 static void oti6858_close(struct usb_serial_port *port)  in oti6858_close()  argument
562 	struct oti6858_private *priv = usb_get_serial_port_data(port);  in oti6858_close()
565 	spin_lock_irqsave(&port->lock, flags);  in oti6858_close()
567 	kfifo_reset_out(&port->write_fifo);  in oti6858_close()
568 	spin_unlock_irqrestore(&port->lock, flags);  in oti6858_close()
570 	dev_dbg(&port->dev, "%s(): after buf_clear()\n", __func__);  in oti6858_close()
577 	dev_dbg(&port->dev, "%s(): shutting down urbs\n", __func__);  in oti6858_close()
578 	usb_kill_urb(port->write_urb);  in oti6858_close()
579 	usb_kill_urb(port->read_urb);  in oti6858_close()
580 	usb_kill_urb(port->interrupt_in_urb);  in oti6858_close()
586 	struct usb_serial_port *port = tty->driver_data;  in oti6858_tiocmset()  local
587 	struct oti6858_private *priv = usb_get_serial_port_data(port);  in oti6858_tiocmset()
591 	dev_dbg(&port->dev, "%s(set = 0x%08x, clear = 0x%08x)\n",  in oti6858_tiocmset()
615 	struct usb_serial_port *port = tty->driver_data;  in oti6858_tiocmget()  local
616 	struct oti6858_private *priv = usb_get_serial_port_data(port);  in oti6858_tiocmget()
639 	dev_dbg(&port->dev, "%s() = 0x%08x\n", __func__, result);  in oti6858_tiocmget()
646 	struct usb_serial_port *port =  urb->context;  in oti6858_read_int_callback()  local
647 	struct oti6858_private *priv = usb_get_serial_port_data(port);  in oti6858_read_int_callback()
680 					dev_dbg(&port->dev, "%s(): scheduling setup_line()\n", __func__);  in oti6858_read_int_callback()
694 					dev_dbg(&port->dev, "%s(): scheduling setup_line()\n", __func__);  in oti6858_read_int_callback()
705 					port->icount.cts++;  in oti6858_read_int_callback()
707 					port->icount.dsr++;  in oti6858_read_int_callback()
709 					port->icount.rng++;  in oti6858_read_int_callback()
711 					port->icount.dcd++;  in oti6858_read_int_callback()
713 				wake_up_interruptible(&port->port.delta_msr_wait);  in oti6858_read_int_callback()
731 		result = usb_submit_urb(port->read_urb, GFP_ATOMIC);  in oti6858_read_int_callback()
734 			dev_err(&port->dev, "%s(): usb_submit_urb() failed,"  in oti6858_read_int_callback()
743 		spin_lock_irqsave(&port->lock, flags);  in oti6858_read_int_callback()
744 		count = kfifo_len(&port->write_fifo);  in oti6858_read_int_callback()
745 		spin_unlock_irqrestore(&port->lock, flags);  in oti6858_read_int_callback()
770 	struct usb_serial_port *port =  urb->context;  in oti6858_read_bulk_callback()  local
771 	struct oti6858_private *priv = usb_get_serial_port_data(port);  in oti6858_read_bulk_callback()
787 		tty_insert_flip_string(&port->port, data, urb->actual_length);  in oti6858_read_bulk_callback()
788 		tty_flip_buffer_push(&port->port);  in oti6858_read_bulk_callback()
792 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);  in oti6858_read_bulk_callback()
794 		dev_err(&port->dev, "%s(): usb_submit_urb() failed,"  in oti6858_read_bulk_callback()
801 	struct usb_serial_port *port =  urb->context;  in oti6858_write_bulk_callback()  local
802 	struct oti6858_private *priv = usb_get_serial_port_data(port);  in oti6858_write_bulk_callback()
822 		port->write_urb->transfer_buffer_length = 1;  in oti6858_write_bulk_callback()
823 		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);  in oti6858_write_bulk_callback()
825 			dev_err_console(port, "%s(): usb_submit_urb() failed,"  in oti6858_write_bulk_callback()
835 	dev_dbg(&port->dev, "%s(): submitting interrupt urb\n", __func__);  in oti6858_write_bulk_callback()
836 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);  in oti6858_write_bulk_callback()
838 		dev_err(&port->dev, "%s(): failed submitting int urb,"  in oti6858_write_bulk_callback()