225 static void stop_read(struct edgeport_port *edge_port);
226 static int restart_read(struct edgeport_port *edge_port);
1560 static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)  in handle_new_msr()  argument
1565 	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr);  in handle_new_msr()
1569 		icount = &edge_port->port->icount;  in handle_new_msr()
1580 		wake_up_interruptible(&edge_port->port->port.delta_msr_wait);  in handle_new_msr()
1584 	edge_port->shadow_msr = msr & 0xf0;  in handle_new_msr()
1586 	tty = tty_port_tty_get(&edge_port->port->port);  in handle_new_msr()
1595 static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,  in handle_new_lsr()  argument
1602 	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);  in handle_new_lsr()
1604 	edge_port->shadow_lsr = lsr;  in handle_new_lsr()
1615 		edge_tty_recv(edge_port->port, &data, 1);  in handle_new_lsr()
1618 	icount = &edge_port->port->icount;  in handle_new_lsr()
1633 	struct edgeport_port *edge_port;  in edge_interrupt_callback()  local
1679 	edge_port = usb_get_serial_port_data(port);  in edge_interrupt_callback()
1680 	if (!edge_port) {  in edge_interrupt_callback()
1693 			edge_port->lsr_event = 1;  in edge_interrupt_callback()
1694 			edge_port->lsr_mask = lsr;  in edge_interrupt_callback()
1698 			handle_new_lsr(edge_port, 0, lsr, 0);  in edge_interrupt_callback()
1707 		handle_new_msr(edge_port, msr);  in edge_interrupt_callback()
1728 	struct edgeport_port *edge_port = urb->context;  in edge_bulk_in_callback()  local
1729 	struct device *dev = &edge_port->port->dev;  in edge_bulk_in_callback()
1757 	port_number = edge_port->port->port_number;  in edge_bulk_in_callback()
1759 	if (edge_port->lsr_event) {  in edge_bulk_in_callback()
1760 		edge_port->lsr_event = 0;  in edge_bulk_in_callback()
1762 			__func__, port_number, edge_port->lsr_mask, *data);  in edge_bulk_in_callback()
1763 		handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data);  in edge_bulk_in_callback()
1771 		if (edge_port->close_pending)  in edge_bulk_in_callback()
1775 			edge_tty_recv(edge_port->port, data,  in edge_bulk_in_callback()
1777 		edge_port->port->icount.rx += urb->actual_length;  in edge_bulk_in_callback()
1782 	spin_lock(&edge_port->ep_lock);  in edge_bulk_in_callback()
1783 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)  in edge_bulk_in_callback()
1785 	else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING)  in edge_bulk_in_callback()
1786 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;  in edge_bulk_in_callback()
1788 	spin_unlock(&edge_port->ep_lock);  in edge_bulk_in_callback()
1808 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_bulk_out_callback()  local
1812 	edge_port->ep_write_urb_in_use = 0;  in edge_bulk_out_callback()
1838 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_open()  local
1847 	if (edge_port == NULL)  in edge_open()
1855 	status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);  in edge_open()
1872 	edge_port->ump_read_timeout =  in edge_open()
1912 				&edge_port->shadow_msr, 1);  in edge_open()
1919 	dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr);  in edge_open()
1922 	edge_port->shadow_mcr = MCR_RTS | MCR_DTR;  in edge_open()
1923 	dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr);  in edge_open()
1925 	edge_serial = edge_port->edge_serial;  in edge_open()
1963 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;  in edge_open()
1964 	urb->context = edge_port;  in edge_open()
1978 	if (edge_port->edge_serial->num_ports_open == 0)  in edge_open()
1988 	struct edgeport_port *edge_port;  in edge_close()  local
1994 	edge_port = usb_get_serial_port_data(port);  in edge_close()
1995 	if (edge_serial == NULL || edge_port == NULL)  in edge_close()
2002 	edge_port->close_pending = 1;  in edge_close()
2006 	edge_port->ep_write_urb_in_use = 0;  in edge_close()
2007 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_close()
2009 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_close()
2017 	--edge_port->edge_serial->num_ports_open;  in edge_close()
2018 	if (edge_port->edge_serial->num_ports_open <= 0) {  in edge_close()
2021 		edge_port->edge_serial->num_ports_open = 0;  in edge_close()
2024 	edge_port->close_pending = 0;  in edge_close()
2030 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_write()  local
2037 	if (edge_port == NULL)  in edge_write()
2039 	if (edge_port->close_pending == 1)  in edge_write()
2043 							&edge_port->ep_lock);  in edge_write()
2052 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_send()  local
2055 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_send()
2057 	if (edge_port->ep_write_urb_in_use) {  in edge_send()
2058 		spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2067 		spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2071 	edge_port->ep_write_urb_in_use = 1;  in edge_send()
2073 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2086 		edge_port->ep_write_urb_in_use = 0;  in edge_send()
2089 		edge_port->port->icount.tx += count;  in edge_send()
2102 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_write_room()  local
2106 	if (edge_port == NULL)  in edge_write_room()
2108 	if (edge_port->close_pending == 1)  in edge_write_room()
2111 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_write_room()
2113 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_write_room()
2122 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_chars_in_buffer()  local
2125 	if (edge_port == NULL)  in edge_chars_in_buffer()
2128 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_chars_in_buffer()
2130 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_chars_in_buffer()
2138 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tx_empty()  local
2141 	ret = tx_active(edge_port);  in edge_tx_empty()
2151 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_throttle()  local
2154 	if (edge_port == NULL)  in edge_throttle()
2171 		stop_read(edge_port);  in edge_throttle()
2178 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_unthrottle()  local
2181 	if (edge_port == NULL)  in edge_unthrottle()
2197 		status = restart_read(edge_port);  in edge_unthrottle()
2206 static void stop_read(struct edgeport_port *edge_port)  in stop_read()  argument
2210 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in stop_read()
2212 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)  in stop_read()
2213 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING;  in stop_read()
2214 	edge_port->shadow_mcr &= ~MCR_RTS;  in stop_read()
2216 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in stop_read()
2219 static int restart_read(struct edgeport_port *edge_port)  in restart_read()  argument
2225 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in restart_read()
2227 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) {  in restart_read()
2228 		urb = edge_port->port->read_urb;  in restart_read()
2231 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;  in restart_read()
2232 	edge_port->shadow_mcr |= MCR_RTS;  in restart_read()
2234 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in restart_read()
2240 		struct edgeport_port *edge_port, struct ktermios *old_termios)  in change_port_settings()  argument
2242 	struct device *dev = &edge_port->port->dev;  in change_port_settings()
2247 	int port_number = edge_port->port->port_number;  in change_port_settings()
2262 	config->bUartMode = (__u8)(edge_port->bUartMode);  in change_port_settings()
2314 		restart_read(edge_port);  in change_port_settings()
2350 	edge_port->baud_rate = baud;  in change_port_settings()
2370 	status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG,  in change_port_settings()
2382 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_set_termios()  local
2392 	if (edge_port == NULL)  in edge_set_termios()
2395 	change_port_settings(tty, edge_port, old_termios);  in edge_set_termios()
2402 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tiocmset()  local
2406 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_tiocmset()
2407 	mcr = edge_port->shadow_mcr;  in edge_tiocmset()
2422 	edge_port->shadow_mcr = mcr;  in edge_tiocmset()
2423 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_tiocmset()
2425 	restore_mcr(edge_port, mcr);  in edge_tiocmset()
2432 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tiocmget()  local
2438 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_tiocmget()
2440 	msr = edge_port->shadow_msr;  in edge_tiocmget()
2441 	mcr = edge_port->shadow_mcr;  in edge_tiocmget()
2451 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_tiocmget()
2456 static int get_serial_info(struct edgeport_port *edge_port,  in get_serial_info()  argument
2465 	cwait = edge_port->port->port.closing_wait;  in get_serial_info()
2472 	tmp.line		= edge_port->port->minor;  in get_serial_info()
2473 	tmp.port		= edge_port->port->port_number;  in get_serial_info()
2476 	tmp.xmit_fifo_size	= edge_port->port->bulk_out_size;  in get_serial_info()
2490 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_ioctl()  local
2495 		return get_serial_info(edge_port,  in edge_ioctl()
2504 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_break()  local
2510 	status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);  in edge_break()
2598 	struct edgeport_port *edge_port;  in edge_port_probe()  local
2601 	edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL);  in edge_port_probe()
2602 	if (!edge_port)  in edge_port_probe()
2605 	spin_lock_init(&edge_port->ep_lock);  in edge_port_probe()
2606 	edge_port->port = port;  in edge_port_probe()
2607 	edge_port->edge_serial = usb_get_serial_data(port->serial);  in edge_port_probe()
2608 	edge_port->bUartMode = default_uart_mode;  in edge_port_probe()
2612 		edge_port->uart_base = UMPMEM_BASE_UART1;  in edge_port_probe()
2613 		edge_port->dma_address = UMPD_OEDB1_ADDRESS;  in edge_port_probe()
2616 		edge_port->uart_base = UMPMEM_BASE_UART2;  in edge_port_probe()
2617 		edge_port->dma_address = UMPD_OEDB2_ADDRESS;  in edge_port_probe()
2627 		__func__, port->port_number, edge_port->uart_base,  in edge_port_probe()
2628 		edge_port->dma_address);  in edge_port_probe()
2630 	usb_set_serial_port_data(port, edge_port);  in edge_port_probe()
2641 	kfree(edge_port);  in edge_port_probe()
2648 	struct edgeport_port *edge_port;  in edge_port_remove()  local
2650 	edge_port = usb_get_serial_port_data(port);  in edge_port_remove()
2652 	kfree(edge_port);  in edge_port_remove()
2663 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in uart_mode_show()  local
2665 	return sprintf(buf, "%d\n", edge_port->bUartMode);  in uart_mode_show()
2672 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in uart_mode_store()  local
2678 		edge_port->bUartMode = v;  in uart_mode_store()