122 static int  cypress_earthmate_port_probe(struct usb_serial_port *port);
123 static int  cypress_hidcom_port_probe(struct usb_serial_port *port);
124 static int  cypress_ca42v2_port_probe(struct usb_serial_port *port);
125 static int  cypress_port_remove(struct usb_serial_port *port);
126 static int  cypress_open(struct tty_struct *tty, struct usb_serial_port *port);
127 static void cypress_close(struct usb_serial_port *port);
128 static void cypress_dtr_rts(struct usb_serial_port *port, int on);
129 static int  cypress_write(struct tty_struct *tty, struct usb_serial_port *port,
131 static void cypress_send(struct usb_serial_port *port);
134 			struct usb_serial_port *port, struct ktermios *old);
141 static void cypress_set_dead(struct usb_serial_port *port);
239 static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)  in analyze_baud_rate()  argument
242 	priv = usb_get_serial_port_data(port);  in analyze_baud_rate()
248 	if (is_frwd(port->serial->dev))  in analyze_baud_rate()
260 	if (port->serial->dev->speed == USB_SPEED_LOW) {  in analyze_baud_rate()
269 			dev_dbg(&port->dev,  in analyze_baud_rate()
281 			dev_dbg(&port->dev,  in analyze_baud_rate()
296 	struct usb_serial_port *port, speed_t baud_rate, int data_bits,  in cypress_serial_control()  argument
302 	struct device *dev = &port->dev;  in cypress_serial_control()
307 	priv = usb_get_serial_port_data(port);  in cypress_serial_control()
322 			retval = analyze_baud_rate(port, baud_rate);  in cypress_serial_control()
349 			retval = usb_control_msg(port->serial->dev,  in cypress_serial_control()
350 					usb_sndctrlpipe(port->serial->dev, 0),  in cypress_serial_control()
365 			cypress_set_dead(port);  in cypress_serial_control()
387 			retval = usb_control_msg(port->serial->dev,  in cypress_serial_control()
388 					usb_rcvctrlpipe(port->serial->dev, 0),  in cypress_serial_control()
402 			cypress_set_dead(port);  in cypress_serial_control()
422 static void cypress_set_dead(struct usb_serial_port *port)  in cypress_set_dead()  argument
424 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_set_dead()
435 	dev_err(&port->dev, "cypress_m8 suspending failing port %d - "  in cypress_set_dead()
436 		"interval might be too short\n", port->port_number);  in cypress_set_dead()
445 static int cypress_generic_port_probe(struct usb_serial_port *port)  in cypress_generic_port_probe()  argument
447 	struct usb_serial *serial = port->serial;  in cypress_generic_port_probe()
450 	if (!port->interrupt_out_urb || !port->interrupt_in_urb) {  in cypress_generic_port_probe()
451 		dev_err(&port->dev, "required endpoint is missing\n");  in cypress_generic_port_probe()
482 	if (port->interrupt_out_size > 9)  in cypress_generic_port_probe()
490 		dev_dbg(&port->dev, "%s - read & write intervals forced to %d\n",  in cypress_generic_port_probe()
493 		priv->write_urb_interval = port->interrupt_out_urb->interval;  in cypress_generic_port_probe()
494 		priv->read_urb_interval = port->interrupt_in_urb->interval;  in cypress_generic_port_probe()
495 		dev_dbg(&port->dev, "%s - intervals: read=%d write=%d\n",  in cypress_generic_port_probe()
499 	usb_set_serial_port_data(port, priv);  in cypress_generic_port_probe()
501 	port->port.drain_delay = 256;  in cypress_generic_port_probe()
507 static int cypress_earthmate_port_probe(struct usb_serial_port *port)  in cypress_earthmate_port_probe()  argument
509 	struct usb_serial *serial = port->serial;  in cypress_earthmate_port_probe()
513 	ret = cypress_generic_port_probe(port);  in cypress_earthmate_port_probe()
515 		dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);  in cypress_earthmate_port_probe()
519 	priv = usb_get_serial_port_data(port);  in cypress_earthmate_port_probe()
530 		dev_dbg(&port->dev,  in cypress_earthmate_port_probe()
539 static int cypress_hidcom_port_probe(struct usb_serial_port *port)  in cypress_hidcom_port_probe()  argument
544 	ret = cypress_generic_port_probe(port);  in cypress_hidcom_port_probe()
546 		dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);  in cypress_hidcom_port_probe()
550 	priv = usb_get_serial_port_data(port);  in cypress_hidcom_port_probe()
556 static int cypress_ca42v2_port_probe(struct usb_serial_port *port)  in cypress_ca42v2_port_probe()  argument
561 	ret = cypress_generic_port_probe(port);  in cypress_ca42v2_port_probe()
563 		dev_dbg(&port->dev, "%s - Failed setting up port\n", __func__);  in cypress_ca42v2_port_probe()
567 	priv = usb_get_serial_port_data(port);  in cypress_ca42v2_port_probe()
573 static int cypress_port_remove(struct usb_serial_port *port)  in cypress_port_remove()  argument
577 	priv = usb_get_serial_port_data(port);  in cypress_port_remove()
585 static int cypress_open(struct tty_struct *tty, struct usb_serial_port *port)  in cypress_open()  argument
587 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_open()
588 	struct usb_serial *serial = port->serial;  in cypress_open()
608 	cypress_send(port);  in cypress_open()
611 		cypress_set_termios(tty, port, &priv->tmp_termios);  in cypress_open()
614 	usb_fill_int_urb(port->interrupt_in_urb, serial->dev,  in cypress_open()
615 		usb_rcvintpipe(serial->dev, port->interrupt_in_endpointAddress),  in cypress_open()
616 		port->interrupt_in_urb->transfer_buffer,  in cypress_open()
617 		port->interrupt_in_urb->transfer_buffer_length,  in cypress_open()
618 		cypress_read_int_callback, port, priv->read_urb_interval);  in cypress_open()
619 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);  in cypress_open()
622 		dev_err(&port->dev,  in cypress_open()
625 		cypress_set_dead(port);  in cypress_open()
631 static void cypress_dtr_rts(struct usb_serial_port *port, int on)  in cypress_dtr_rts()  argument
633 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_dtr_rts()
642 	cypress_write(NULL, port, NULL, 0);  in cypress_dtr_rts()
645 static void cypress_close(struct usb_serial_port *port)  in cypress_close()  argument
647 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_close()
654 	dev_dbg(&port->dev, "%s - stopping urbs\n", __func__);  in cypress_close()
655 	usb_kill_urb(port->interrupt_in_urb);  in cypress_close()
656 	usb_kill_urb(port->interrupt_out_urb);  in cypress_close()
659 		dev_info(&port->dev, "Statistics: %d Bytes In | %d Bytes Out | %d Commands Issued\n",  in cypress_close()
664 static int cypress_write(struct tty_struct *tty, struct usb_serial_port *port,  in cypress_write()  argument
667 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_write()
669 	dev_dbg(&port->dev, "%s - %d bytes\n", __func__, count);  in cypress_write()
685 	cypress_send(port);  in cypress_write()
691 static void cypress_send(struct usb_serial_port *port)  in cypress_send()  argument
694 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_send()
695 	struct device *dev = &port->dev;  in cypress_send()
702 		port->interrupt_out_size);  in cypress_send()
713 	memset(port->interrupt_out_urb->transfer_buffer, 0,  in cypress_send()
714 						port->interrupt_out_size);  in cypress_send()
722 		port->interrupt_out_buffer[0] = priv->line_control;  in cypress_send()
727 		port->interrupt_out_buffer[0] = priv->line_control;  in cypress_send()
743 					&port->interrupt_out_buffer[offset],  in cypress_send()
744 					port->interrupt_out_size - offset,  in cypress_send()
752 		port->interrupt_out_buffer[1] = count;  in cypress_send()
755 		port->interrupt_out_buffer[0] |= count;  in cypress_send()
771 	usb_serial_debug_data(dev, __func__, port->interrupt_out_size,  in cypress_send()
772 			      port->interrupt_out_urb->transfer_buffer);  in cypress_send()
774 	usb_fill_int_urb(port->interrupt_out_urb, port->serial->dev,  in cypress_send()
775 		usb_sndintpipe(port->serial->dev, port->interrupt_out_endpointAddress),  in cypress_send()
776 		port->interrupt_out_buffer, port->interrupt_out_size,  in cypress_send()
777 		cypress_write_int_callback, port, priv->write_urb_interval);  in cypress_send()
778 	result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);  in cypress_send()
780 		dev_err_console(port,  in cypress_send()
784 		cypress_set_dead(port);  in cypress_send()
795 	usb_serial_port_softint(port);  in cypress_send()
802 	struct usb_serial_port *port = tty->driver_data;  in cypress_write_room()  local
803 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_write_room()
811 	dev_dbg(&port->dev, "%s - returns %d\n", __func__, room);  in cypress_write_room()
818 	struct usb_serial_port *port = tty->driver_data;  in cypress_tiocmget()  local
819 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_tiocmget()
836 	dev_dbg(&port->dev, "%s - result = %x\n", __func__, result);  in cypress_tiocmget()
845 	struct usb_serial_port *port = tty->driver_data;  in cypress_tiocmset()  local
846 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_tiocmset()
861 	return cypress_write(tty, port, NULL, 0);  in cypress_tiocmset()
865 	struct usb_serial_port *port, struct ktermios *old_termios)  in cypress_set_termios()  argument
867 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_set_termios()
868 	struct device *dev = &port->dev;  in cypress_set_termios()
958 	cypress_serial_control(tty, port, tty_get_baud_rate(tty),  in cypress_set_termios()
966 	cypress_serial_control(tty, port, 0, 0, 0, 0, 0, 0, CYPRESS_GET_CONFIG);  in cypress_set_termios()
1005 		cypress_write(tty, port, NULL, 0);  in cypress_set_termios()
1013 	struct usb_serial_port *port = tty->driver_data;  in cypress_chars_in_buffer()  local
1014 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_chars_in_buffer()
1022 	dev_dbg(&port->dev, "%s - returns %d\n", __func__, chars);  in cypress_chars_in_buffer()
1029 	struct usb_serial_port *port = tty->driver_data;  in cypress_throttle()  local
1030 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_throttle()
1040 	struct usb_serial_port *port = tty->driver_data;  in cypress_unthrottle()  local
1041 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_unthrottle()
1053 		result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);  in cypress_unthrottle()
1055 			dev_err(&port->dev, "%s - failed submitting read urb, "  in cypress_unthrottle()
1057 			cypress_set_dead(port);  in cypress_unthrottle()
1065 	struct usb_serial_port *port = urb->context;  in cypress_read_int_callback()  local
1066 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_read_int_callback()
1093 		cypress_set_dead(port);  in cypress_read_int_callback()
1106 	tty = tty_port_tty_get(&port->port);  in cypress_read_int_callback()
1141 	usb_serial_debug_data(&port->dev, __func__, urb->actual_length, data);  in cypress_read_int_callback()
1150 				port->icount.cts++;  in cypress_read_int_callback()
1152 				port->icount.dsr++;  in cypress_read_int_callback()
1154 				port->icount.rng++;  in cypress_read_int_callback()
1156 				port->icount.dcd++;  in cypress_read_int_callback()
1158 			wake_up_interruptible(&port->port.delta_msr_wait);  in cypress_read_int_callback()
1188 		tty_insert_flip_string_fixed_flag(&port->port, data + i,  in cypress_read_int_callback()
1190 		tty_flip_buffer_push(&port->port);  in cypress_read_int_callback()
1204 		usb_fill_int_urb(port->interrupt_in_urb, port->serial->dev,  in cypress_read_int_callback()
1205 				usb_rcvintpipe(port->serial->dev,  in cypress_read_int_callback()
1206 					port->interrupt_in_endpointAddress),  in cypress_read_int_callback()
1207 				port->interrupt_in_urb->transfer_buffer,  in cypress_read_int_callback()
1208 				port->interrupt_in_urb->transfer_buffer_length,  in cypress_read_int_callback()
1209 				cypress_read_int_callback, port,  in cypress_read_int_callback()
1211 		result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);  in cypress_read_int_callback()
1215 			cypress_set_dead(port);  in cypress_read_int_callback()
1223 	struct usb_serial_port *port = urb->context;  in cypress_write_int_callback()  local
1224 	struct cypress_private *priv = usb_get_serial_port_data(port);  in cypress_write_int_callback()
1246 		cypress_set_dead(port);  in cypress_write_int_callback()
1252 	cypress_send(port);  in cypress_write_int_callback()