134 static void pl2303_set_break(struct usb_serial_port *port, bool enable);
279 static int pl2303_port_probe(struct usb_serial_port *port)  in pl2303_port_probe()  argument
289 	usb_set_serial_port_data(port, priv);  in pl2303_port_probe()
291 	port->port.drain_delay = 256;  in pl2303_port_probe()
296 static int pl2303_port_remove(struct usb_serial_port *port)  in pl2303_port_remove()  argument
298 	struct pl2303_private *priv = usb_get_serial_port_data(port);  in pl2303_port_remove()
305 static int pl2303_set_control_lines(struct usb_serial_port *port, u8 value)  in pl2303_set_control_lines()  argument
307 	struct usb_device *dev = port->serial->dev;  in pl2303_set_control_lines()
310 	dev_dbg(&port->dev, "%s - %02x\n", __func__, value);  in pl2303_set_control_lines()
316 		dev_err(&port->dev, "%s - failed: %d\n", __func__, retval);  in pl2303_set_control_lines()
402 					struct usb_serial_port *port,  in pl2303_encode_baud_rate()  argument
405 	struct usb_serial *serial = port->serial;  in pl2303_encode_baud_rate()
411 	dev_dbg(&port->dev, "baud requested = %u\n", baud);  in pl2303_encode_baud_rate()
429 	dev_dbg(&port->dev, "baud set = %u\n", baud);  in pl2303_encode_baud_rate()
432 static int pl2303_get_line_request(struct usb_serial_port *port,  in pl2303_get_line_request()  argument
435 	struct usb_device *udev = port->serial->dev;  in pl2303_get_line_request()
442 		dev_err(&port->dev, "%s - failed: %d\n", __func__, ret);  in pl2303_get_line_request()
450 	dev_dbg(&port->dev, "%s - %7ph\n", __func__, buf);  in pl2303_get_line_request()
455 static int pl2303_set_line_request(struct usb_serial_port *port,  in pl2303_set_line_request()  argument
458 	struct usb_device *udev = port->serial->dev;  in pl2303_set_line_request()
465 		dev_err(&port->dev, "%s - failed: %d\n", __func__, ret);  in pl2303_set_line_request()
473 	dev_dbg(&port->dev, "%s - %7ph\n", __func__, buf);  in pl2303_set_line_request()
479 		struct usb_serial_port *port, struct ktermios *old_termios)  in pl2303_set_termios()  argument
481 	struct usb_serial *serial = port->serial;  in pl2303_set_termios()
483 	struct pl2303_private *priv = usb_get_serial_port_data(port);  in pl2303_set_termios()
500 	pl2303_get_line_request(port, buf);  in pl2303_set_termios()
516 	dev_dbg(&port->dev, "data bits = %d\n", buf[6]);  in pl2303_set_termios()
519 	pl2303_encode_baud_rate(tty, port, &buf[0]);  in pl2303_set_termios()
531 			dev_dbg(&port->dev, "stop bits = 1.5\n");  in pl2303_set_termios()
534 			dev_dbg(&port->dev, "stop bits = 2\n");  in pl2303_set_termios()
538 		dev_dbg(&port->dev, "stop bits = 1\n");  in pl2303_set_termios()
550 				dev_dbg(&port->dev, "parity = mark\n");  in pl2303_set_termios()
553 				dev_dbg(&port->dev, "parity = odd\n");  in pl2303_set_termios()
558 				dev_dbg(&port->dev, "parity = space\n");  in pl2303_set_termios()
561 				dev_dbg(&port->dev, "parity = even\n");  in pl2303_set_termios()
566 		dev_dbg(&port->dev, "parity = none\n");  in pl2303_set_termios()
582 		ret = pl2303_set_line_request(port, buf);  in pl2303_set_termios()
597 		pl2303_set_control_lines(port, control);  in pl2303_set_termios()
614 static void pl2303_dtr_rts(struct usb_serial_port *port, int on)  in pl2303_dtr_rts()  argument
616 	struct pl2303_private *priv = usb_get_serial_port_data(port);  in pl2303_dtr_rts()
628 	pl2303_set_control_lines(port, control);  in pl2303_dtr_rts()
631 static void pl2303_close(struct usb_serial_port *port)  in pl2303_close()  argument
633 	usb_serial_generic_close(port);  in pl2303_close()
634 	usb_kill_urb(port->interrupt_in_urb);  in pl2303_close()
635 	pl2303_set_break(port, false);  in pl2303_close()
638 static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)  in pl2303_open()  argument
640 	struct usb_serial *serial = port->serial;  in pl2303_open()
645 		usb_clear_halt(serial->dev, port->write_urb->pipe);  in pl2303_open()
646 		usb_clear_halt(serial->dev, port->read_urb->pipe);  in pl2303_open()
655 		pl2303_set_termios(tty, port, NULL);  in pl2303_open()
657 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);  in pl2303_open()
659 		dev_err(&port->dev, "failed to submit interrupt urb: %d\n",  in pl2303_open()
664 	result = usb_serial_generic_open(tty, port);  in pl2303_open()
666 		usb_kill_urb(port->interrupt_in_urb);  in pl2303_open()
676 	struct usb_serial_port *port = tty->driver_data;  in pl2303_tiocmset()  local
677 	struct pl2303_private *priv = usb_get_serial_port_data(port);  in pl2303_tiocmset()
694 	ret = pl2303_set_control_lines(port, control);  in pl2303_tiocmset()
703 	struct usb_serial_port *port = tty->driver_data;  in pl2303_tiocmget()  local
704 	struct pl2303_private *priv = usb_get_serial_port_data(port);  in pl2303_tiocmget()
722 	dev_dbg(&port->dev, "%s - result = %x\n", __func__, result);  in pl2303_tiocmget()
727 static int pl2303_carrier_raised(struct usb_serial_port *port)  in pl2303_carrier_raised()  argument
729 	struct pl2303_private *priv = usb_get_serial_port_data(port);  in pl2303_carrier_raised()
741 	struct usb_serial_port *port = tty->driver_data;  in pl2303_ioctl()  local
747 		ser.line = port->minor;  in pl2303_ioctl()
748 		ser.port = port->port_number;  in pl2303_ioctl()
762 static void pl2303_set_break(struct usb_serial_port *port, bool enable)  in pl2303_set_break()  argument
764 	struct usb_serial *serial = port->serial;  in pl2303_set_break()
773 	dev_dbg(&port->dev, "%s - turning break %s\n", __func__,  in pl2303_set_break()
780 		dev_err(&port->dev, "error sending break = %d\n", result);  in pl2303_set_break()
785 	struct usb_serial_port *port = tty->driver_data;  in pl2303_break_ctl()  local
787 	pl2303_set_break(port, state);  in pl2303_break_ctl()
790 static void pl2303_update_line_status(struct usb_serial_port *port,  in pl2303_update_line_status()  argument
794 	struct usb_serial *serial = port->serial;  in pl2303_update_line_status()
796 	struct pl2303_private *priv = usb_get_serial_port_data(port);  in pl2303_update_line_status()
818 		usb_serial_handle_break(port);  in pl2303_update_line_status()
822 			port->icount.cts++;  in pl2303_update_line_status()
824 			port->icount.dsr++;  in pl2303_update_line_status()
826 			port->icount.rng++;  in pl2303_update_line_status()
828 			port->icount.dcd++;  in pl2303_update_line_status()
829 			tty = tty_port_tty_get(&port->port);  in pl2303_update_line_status()
831 				usb_serial_handle_dcd_change(port, tty,  in pl2303_update_line_status()
837 		wake_up_interruptible(&port->port.delta_msr_wait);  in pl2303_update_line_status()
843 	struct usb_serial_port *port =  urb->context;  in pl2303_read_int_callback()  local
857 		dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n",  in pl2303_read_int_callback()
861 		dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n",  in pl2303_read_int_callback()
866 	usb_serial_debug_data(&port->dev, __func__,  in pl2303_read_int_callback()
869 	pl2303_update_line_status(port, data, actual_length);  in pl2303_read_int_callback()
874 		dev_err(&port->dev,  in pl2303_read_int_callback()
882 	struct usb_serial_port *port = urb->context;  in pl2303_process_read_urb()  local
883 	struct pl2303_private *priv = usb_get_serial_port_data(port);  in pl2303_process_read_urb()
911 		dev_dbg(&port->dev, "%s - tty_flag = %d\n", __func__,  in pl2303_process_read_urb()
915 		tty_insert_flip_char(&port->port, 0, TTY_OVERRUN);  in pl2303_process_read_urb()
917 	if (port->port.console && port->sysrq) {  in pl2303_process_read_urb()
919 			if (!usb_serial_handle_sysrq_char(port, data[i]))  in pl2303_process_read_urb()
920 				tty_insert_flip_char(&port->port, data[i],  in pl2303_process_read_urb()
923 		tty_insert_flip_string_fixed_flag(&port->port, data, tty_flag,  in pl2303_process_read_urb()
927 	tty_flip_buffer_push(&port->port);  in pl2303_process_read_urb()