201 static void stop_read(struct edgeport_port *edge_port);
202 static int restart_read(struct edgeport_port *edge_port);
1430 static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)  in handle_new_msr()  argument
1435 	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr);  in handle_new_msr()
1439 		icount = &edge_port->port->icount;  in handle_new_msr()
1450 		wake_up_interruptible(&edge_port->port->port.delta_msr_wait);  in handle_new_msr()
1454 	edge_port->shadow_msr = msr & 0xf0;  in handle_new_msr()
1456 	tty = tty_port_tty_get(&edge_port->port->port);  in handle_new_msr()
1465 static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,  in handle_new_lsr()  argument
1472 	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);  in handle_new_lsr()
1474 	edge_port->shadow_lsr = lsr;  in handle_new_lsr()
1485 		edge_tty_recv(edge_port->port, &data, 1);  in handle_new_lsr()
1488 	icount = &edge_port->port->icount;  in handle_new_lsr()
1504 	struct edgeport_port *edge_port;  in edge_interrupt_callback()  local
1550 	edge_port = usb_get_serial_port_data(port);  in edge_interrupt_callback()
1551 	if (!edge_port) {  in edge_interrupt_callback()
1563 			edge_port->lsr_event = 1;  in edge_interrupt_callback()
1564 			edge_port->lsr_mask = lsr;  in edge_interrupt_callback()
1568 			handle_new_lsr(edge_port, 0, lsr, 0);  in edge_interrupt_callback()
1577 		handle_new_msr(edge_port, msr);  in edge_interrupt_callback()
1598 	struct edgeport_port *edge_port = urb->context;  in edge_bulk_in_callback()  local
1599 	struct device *dev = &edge_port->port->dev;  in edge_bulk_in_callback()
1627 	port_number = edge_port->port->port_number;  in edge_bulk_in_callback()
1629 	if (edge_port->lsr_event) {  in edge_bulk_in_callback()
1630 		edge_port->lsr_event = 0;  in edge_bulk_in_callback()
1632 			__func__, port_number, edge_port->lsr_mask, *data);  in edge_bulk_in_callback()
1633 		handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data);  in edge_bulk_in_callback()
1641 		if (edge_port->close_pending)  in edge_bulk_in_callback()
1645 			edge_tty_recv(edge_port->port, data,  in edge_bulk_in_callback()
1647 		edge_port->port->icount.rx += urb->actual_length;  in edge_bulk_in_callback()
1652 	spin_lock(&edge_port->ep_lock);  in edge_bulk_in_callback()
1653 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)  in edge_bulk_in_callback()
1655 	else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING)  in edge_bulk_in_callback()
1656 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;  in edge_bulk_in_callback()
1658 	spin_unlock(&edge_port->ep_lock);  in edge_bulk_in_callback()
1678 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_bulk_out_callback()  local
1682 	edge_port->ep_write_urb_in_use = 0;  in edge_bulk_out_callback()
1708 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_open()  local
1717 	if (edge_port == NULL)  in edge_open()
1725 	status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);  in edge_open()
1742 	edge_port->ump_read_timeout =  in edge_open()
1782 				&edge_port->shadow_msr, 1);  in edge_open()
1789 	dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr);  in edge_open()
1792 	edge_port->shadow_mcr = MCR_RTS | MCR_DTR;  in edge_open()
1793 	dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr);  in edge_open()
1795 	edge_serial = edge_port->edge_serial;  in edge_open()
1833 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;  in edge_open()
1834 	urb->context = edge_port;  in edge_open()
1848 	if (edge_port->edge_serial->num_ports_open == 0)  in edge_open()
1858 	struct edgeport_port *edge_port;  in edge_close()  local
1864 	edge_port = usb_get_serial_port_data(port);  in edge_close()
1865 	if (edge_serial == NULL || edge_port == NULL)  in edge_close()
1870 	edge_port->close_pending = 1;  in edge_close()
1874 	edge_port->ep_write_urb_in_use = 0;  in edge_close()
1875 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_close()
1877 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_close()
1885 	--edge_port->edge_serial->num_ports_open;  in edge_close()
1886 	if (edge_port->edge_serial->num_ports_open <= 0) {  in edge_close()
1889 		edge_port->edge_serial->num_ports_open = 0;  in edge_close()
1892 	edge_port->close_pending = 0;  in edge_close()
1898 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_write()  local
1905 	if (edge_port == NULL)  in edge_write()
1907 	if (edge_port->close_pending == 1)  in edge_write()
1911 							&edge_port->ep_lock);  in edge_write()
1920 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_send()  local
1923 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_send()
1925 	if (edge_port->ep_write_urb_in_use) {  in edge_send()
1926 		spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
1935 		spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
1939 	edge_port->ep_write_urb_in_use = 1;  in edge_send()
1941 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
1954 		edge_port->ep_write_urb_in_use = 0;  in edge_send()
1957 		edge_port->port->icount.tx += count;  in edge_send()
1968 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_write_room()  local
1972 	if (edge_port == NULL)  in edge_write_room()
1974 	if (edge_port->close_pending == 1)  in edge_write_room()
1977 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_write_room()
1979 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_write_room()
1988 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_chars_in_buffer()  local
1991 	if (edge_port == NULL)  in edge_chars_in_buffer()
1994 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_chars_in_buffer()
1996 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_chars_in_buffer()
2004 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tx_empty()  local
2007 	ret = tx_active(edge_port);  in edge_tx_empty()
2017 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_throttle()  local
2020 	if (edge_port == NULL)  in edge_throttle()
2035 		stop_read(edge_port);  in edge_throttle()
2042 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_unthrottle()  local
2045 	if (edge_port == NULL)  in edge_unthrottle()
2059 		status = restart_read(edge_port);  in edge_unthrottle()
2068 static void stop_read(struct edgeport_port *edge_port)  in stop_read()  argument
2072 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in stop_read()
2074 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)  in stop_read()
2075 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING;  in stop_read()
2076 	edge_port->shadow_mcr &= ~MCR_RTS;  in stop_read()
2078 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in stop_read()
2081 static int restart_read(struct edgeport_port *edge_port)  in restart_read()  argument
2087 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in restart_read()
2089 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) {  in restart_read()
2090 		urb = edge_port->port->read_urb;  in restart_read()
2093 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;  in restart_read()
2094 	edge_port->shadow_mcr |= MCR_RTS;  in restart_read()
2096 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in restart_read()
2102 		struct edgeport_port *edge_port, struct ktermios *old_termios)  in change_port_settings()  argument
2104 	struct device *dev = &edge_port->port->dev;  in change_port_settings()
2109 	int port_number = edge_port->port->port_number;  in change_port_settings()
2124 	config->bUartMode = (__u8)(edge_port->bUartMode);  in change_port_settings()
2176 		restart_read(edge_port);  in change_port_settings()
2210 	edge_port->baud_rate = baud;  in change_port_settings()
2230 	status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG,  in change_port_settings()
2242 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_set_termios()  local
2252 	if (edge_port == NULL)  in edge_set_termios()
2255 	change_port_settings(tty, edge_port, old_termios);  in edge_set_termios()
2262 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tiocmset()  local
2266 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_tiocmset()
2267 	mcr = edge_port->shadow_mcr;  in edge_tiocmset()
2282 	edge_port->shadow_mcr = mcr;  in edge_tiocmset()
2283 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_tiocmset()
2285 	restore_mcr(edge_port, mcr);  in edge_tiocmset()
2292 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tiocmget()  local
2298 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_tiocmget()
2300 	msr = edge_port->shadow_msr;  in edge_tiocmget()
2301 	mcr = edge_port->shadow_mcr;  in edge_tiocmget()
2311 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_tiocmget()
2316 static int get_serial_info(struct edgeport_port *edge_port,  in get_serial_info()  argument
2325 	cwait = edge_port->port->port.closing_wait;  in get_serial_info()
2332 	tmp.line		= edge_port->port->minor;  in get_serial_info()
2333 	tmp.port		= edge_port->port->port_number;  in get_serial_info()
2336 	tmp.xmit_fifo_size	= edge_port->port->bulk_out_size;  in get_serial_info()
2350 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_ioctl()  local
2355 		return get_serial_info(edge_port,  in edge_ioctl()
2364 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_break()  local
2370 	status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);  in edge_break()
2410 	struct edgeport_port *edge_port;  in edge_port_probe()  local
2413 	edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL);  in edge_port_probe()
2414 	if (!edge_port)  in edge_port_probe()
2417 	spin_lock_init(&edge_port->ep_lock);  in edge_port_probe()
2418 	edge_port->port = port;  in edge_port_probe()
2419 	edge_port->edge_serial = usb_get_serial_data(port->serial);  in edge_port_probe()
2420 	edge_port->bUartMode = default_uart_mode;  in edge_port_probe()
2424 		edge_port->uart_base = UMPMEM_BASE_UART1;  in edge_port_probe()
2425 		edge_port->dma_address = UMPD_OEDB1_ADDRESS;  in edge_port_probe()
2428 		edge_port->uart_base = UMPMEM_BASE_UART2;  in edge_port_probe()
2429 		edge_port->dma_address = UMPD_OEDB2_ADDRESS;  in edge_port_probe()
2439 		__func__, port->port_number, edge_port->uart_base,  in edge_port_probe()
2440 		edge_port->dma_address);  in edge_port_probe()
2442 	usb_set_serial_port_data(port, edge_port);  in edge_port_probe()
2453 	kfree(edge_port);  in edge_port_probe()
2460 	struct edgeport_port *edge_port;  in edge_port_remove()  local
2462 	edge_port = usb_get_serial_port_data(port);  in edge_port_remove()
2464 	kfree(edge_port);  in edge_port_remove()
2475 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in uart_mode_show()  local
2477 	return sprintf(buf, "%d\n", edge_port->bUartMode);  in uart_mode_show()
2484 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in uart_mode_store()  local
2490 		edge_port->bUartMode = v;  in uart_mode_store()