Cross Reference: /drivers/usb/serial/ch341.c

Lines Matching refs:port
6  * ch341.c implements a serial port driver for the Winchiphead CH341.
9  * serial port, an IEEE-1284 parallel printer port or a memory-like
273 	usb_set_serial_port_data(serial->port[0], priv);
280 static int ch341_carrier_raised(struct usb_serial_port *port)
282 	struct ch341_private *priv = usb_get_serial_port_data(port);
288 static void ch341_dtr_rts(struct usb_serial_port *port, int on)
290 	struct ch341_private *priv = usb_get_serial_port_data(port);
293 	dbg("%s - port %d", __func__, port->number);
301 	ch341_set_handshake(port->serial->dev, priv->line_control);
305 static void ch341_close(struct usb_serial_port *port)
307 	dbg("%s - port %d", __func__, port->number);
309 	usb_serial_generic_close(port);
310 	usb_kill_urb(port->interrupt_in_urb);
315 static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port)
317 	struct usb_serial *serial = port->serial;
318 	struct ch341_private *priv = usb_get_serial_port_data(serial->port[0]);
338 	r = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
340 		dev_err(&port->dev, "%s - failed submitting interrupt urb,"
342 		ch341_close(port);
346 	r = usb_serial_generic_open(tty, port);
355 		struct usb_serial_port *port, struct ktermios *old_termios)
357 	struct ch341_private *priv = usb_get_serial_port_data(port);
371 		ch341_set_baudrate(port->serial->dev, priv);
378 	ch341_set_handshake(port->serial->dev, priv->line_control);
391 	struct usb_serial_port *port = tty->driver_data;
400 		dev_err(&port->dev, "%s - kmalloc failed\n", __func__);
404 	r = ch341_control_in(port->serial->dev, CH341_REQ_READ_REG,
407 		dev_err(&port->dev, "%s - USB control read error (%d)\n",
425 	r = ch341_control_out(port->serial->dev, CH341_REQ_WRITE_REG,
428 		dev_err(&port->dev, "%s - USB control write error (%d)\n",
437 	struct usb_serial_port *port = tty->driver_data;
438 	struct ch341_private *priv = usb_get_serial_port_data(port);
454 	return ch341_set_handshake(port->serial->dev, control);
459 	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
464 	dbg("%s (%d)", __func__, port->number);
483 	usb_serial_debug_data(debug, &port->dev, __func__,
487 		struct ch341_private *priv = usb_get_serial_port_data(port);
498 			struct tty_struct *tty = tty_port_tty_get(&port->port);
500 				usb_serial_handle_dcd_change(port, tty,
516 static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
518 	struct ch341_private *priv = usb_get_serial_port_data(port);
558 	struct usb_serial_port *port = tty->driver_data;
559 	dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd);
563 		dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
564 		return wait_modem_info(port, arg);
576 	struct usb_serial_port *port = tty->driver_data;
577 	struct ch341_private *priv = usb_get_serial_port_data(port);
583 	dbg("%s (%d)", __func__, port->number);
610 	priv = usb_get_serial_port_data(serial->port[0]);
612 	/*reconfigure ch341 serial port after bus-reset*/