221 static void stop_read(struct edgeport_port *edge_port);
222 static int restart_read(struct edgeport_port *edge_port);
1555 static void handle_new_msr(struct edgeport_port *edge_port, __u8 msr)  in handle_new_msr()  argument
1560 	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr);  in handle_new_msr()
1564 		icount = &edge_port->port->icount;  in handle_new_msr()
1575 		wake_up_interruptible(&edge_port->port->port.delta_msr_wait);  in handle_new_msr()
1579 	edge_port->shadow_msr = msr & 0xf0;  in handle_new_msr()
1581 	tty = tty_port_tty_get(&edge_port->port->port);  in handle_new_msr()
1590 static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,  in handle_new_lsr()  argument
1597 	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);  in handle_new_lsr()
1599 	edge_port->shadow_lsr = lsr;  in handle_new_lsr()
1610 		edge_tty_recv(edge_port->port, &data, 1);  in handle_new_lsr()
1613 	icount = &edge_port->port->icount;  in handle_new_lsr()
1628 	struct edgeport_port *edge_port;  in edge_interrupt_callback()  local
1680 	edge_port = usb_get_serial_port_data(port);  in edge_interrupt_callback()
1681 	if (!edge_port) {  in edge_interrupt_callback()
1694 			edge_port->lsr_event = 1;  in edge_interrupt_callback()
1695 			edge_port->lsr_mask = lsr;  in edge_interrupt_callback()
1699 			handle_new_lsr(edge_port, 0, lsr, 0);  in edge_interrupt_callback()
1708 		handle_new_msr(edge_port, msr);  in edge_interrupt_callback()
1729 	struct edgeport_port *edge_port = urb->context;  in edge_bulk_in_callback()  local
1730 	struct device *dev = &edge_port->port->dev;  in edge_bulk_in_callback()
1759 	port_number = edge_port->port->port_number;  in edge_bulk_in_callback()
1761 	if (urb->actual_length > 0 && edge_port->lsr_event) {  in edge_bulk_in_callback()
1762 		edge_port->lsr_event = 0;  in edge_bulk_in_callback()
1764 			__func__, port_number, edge_port->lsr_mask, *data);  in edge_bulk_in_callback()
1765 		handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data);  in edge_bulk_in_callback()
1773 		if (edge_port->close_pending)  in edge_bulk_in_callback()
1777 			edge_tty_recv(edge_port->port, data,  in edge_bulk_in_callback()
1779 		edge_port->port->icount.rx += urb->actual_length;  in edge_bulk_in_callback()
1784 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_bulk_in_callback()
1785 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)  in edge_bulk_in_callback()
1787 	else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING)  in edge_bulk_in_callback()
1788 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;  in edge_bulk_in_callback()
1790 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_bulk_in_callback()
1810 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_bulk_out_callback()  local
1814 	edge_port->ep_write_urb_in_use = 0;  in edge_bulk_out_callback()
1840 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_open()  local
1849 	if (edge_port == NULL)  in edge_open()
1857 	status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);  in edge_open()
1874 	edge_port->ump_read_timeout =  in edge_open()
1914 				&edge_port->shadow_msr, 1);  in edge_open()
1921 	dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr);  in edge_open()
1924 	edge_port->shadow_mcr = MCR_RTS | MCR_DTR;  in edge_open()
1925 	dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr);  in edge_open()
1927 	edge_serial = edge_port->edge_serial;  in edge_open()
1952 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;  in edge_open()
1953 	urb->context = edge_port;  in edge_open()
1967 	if (edge_port->edge_serial->num_ports_open == 0)  in edge_open()
1977 	struct edgeport_port *edge_port;  in edge_close()  local
1983 	edge_port = usb_get_serial_port_data(port);  in edge_close()
1984 	if (edge_serial == NULL || edge_port == NULL)  in edge_close()
1991 	edge_port->close_pending = 1;  in edge_close()
1995 	edge_port->ep_write_urb_in_use = 0;  in edge_close()
1996 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_close()
1998 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_close()
2006 	--edge_port->edge_serial->num_ports_open;  in edge_close()
2007 	if (edge_port->edge_serial->num_ports_open <= 0) {  in edge_close()
2010 		edge_port->edge_serial->num_ports_open = 0;  in edge_close()
2013 	edge_port->close_pending = 0;  in edge_close()
2019 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_write()  local
2026 	if (edge_port == NULL)  in edge_write()
2028 	if (edge_port->close_pending == 1)  in edge_write()
2032 							&edge_port->ep_lock);  in edge_write()
2041 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_send()  local
2044 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_send()
2046 	if (edge_port->ep_write_urb_in_use) {  in edge_send()
2047 		spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2056 		spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2060 	edge_port->ep_write_urb_in_use = 1;  in edge_send()
2062 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2075 		edge_port->ep_write_urb_in_use = 0;  in edge_send()
2078 		edge_port->port->icount.tx += count;  in edge_send()
2091 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_write_room()  local
2095 	if (edge_port == NULL)  in edge_write_room()
2097 	if (edge_port->close_pending == 1)  in edge_write_room()
2100 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_write_room()
2102 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_write_room()
2111 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_chars_in_buffer()  local
2114 	if (edge_port == NULL)  in edge_chars_in_buffer()
2117 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_chars_in_buffer()
2119 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_chars_in_buffer()
2127 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tx_empty()  local
2130 	ret = tx_active(edge_port);  in edge_tx_empty()
2140 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_throttle()  local
2143 	if (edge_port == NULL)  in edge_throttle()
2160 		stop_read(edge_port);  in edge_throttle()
2167 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_unthrottle()  local
2170 	if (edge_port == NULL)  in edge_unthrottle()
2186 		status = restart_read(edge_port);  in edge_unthrottle()
2195 static void stop_read(struct edgeport_port *edge_port)  in stop_read()  argument
2199 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in stop_read()
2201 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)  in stop_read()
2202 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING;  in stop_read()
2203 	edge_port->shadow_mcr &= ~MCR_RTS;  in stop_read()
2205 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in stop_read()
2208 static int restart_read(struct edgeport_port *edge_port)  in restart_read()  argument
2214 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in restart_read()
2216 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) {  in restart_read()
2217 		urb = edge_port->port->read_urb;  in restart_read()
2220 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;  in restart_read()
2221 	edge_port->shadow_mcr |= MCR_RTS;  in restart_read()
2223 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in restart_read()
2229 		struct edgeport_port *edge_port, struct ktermios *old_termios)  in change_port_settings()  argument
2231 	struct device *dev = &edge_port->port->dev;  in change_port_settings()
2236 	int port_number = edge_port->port->port_number;  in change_port_settings()
2251 	config->bUartMode = (__u8)(edge_port->bUartMode);  in change_port_settings()
2303 		restart_read(edge_port);  in change_port_settings()
2342 	edge_port->baud_rate = baud;  in change_port_settings()
2362 	status = send_cmd(edge_port->port->serial->dev, UMPC_SET_CONFIG,  in change_port_settings()
2374 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_set_termios()  local
2376 	if (edge_port == NULL)  in edge_set_termios()
2379 	change_port_settings(tty, edge_port, old_termios);  in edge_set_termios()
2386 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tiocmset()  local
2390 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_tiocmset()
2391 	mcr = edge_port->shadow_mcr;  in edge_tiocmset()
2406 	edge_port->shadow_mcr = mcr;  in edge_tiocmset()
2407 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_tiocmset()
2409 	restore_mcr(edge_port, mcr);  in edge_tiocmset()
2416 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tiocmget()  local
2422 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_tiocmget()
2424 	msr = edge_port->shadow_msr;  in edge_tiocmget()
2425 	mcr = edge_port->shadow_mcr;  in edge_tiocmget()
2435 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_tiocmget()
2440 static int get_serial_info(struct edgeport_port *edge_port,  in get_serial_info()  argument
2446 	cwait = edge_port->port->port.closing_wait;  in get_serial_info()
2453 	tmp.line		= edge_port->port->minor;  in get_serial_info()
2454 	tmp.port		= edge_port->port->port_number;  in get_serial_info()
2456 	tmp.xmit_fifo_size	= edge_port->port->bulk_out_size;  in get_serial_info()
2470 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_ioctl()  local
2475 		return get_serial_info(edge_port,  in edge_ioctl()
2484 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_break()  local
2490 	status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);  in edge_break()
2603 	struct edgeport_port *edge_port;  in edge_port_probe()  local
2606 	edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL);  in edge_port_probe()
2607 	if (!edge_port)  in edge_port_probe()
2610 	spin_lock_init(&edge_port->ep_lock);  in edge_port_probe()
2611 	edge_port->port = port;  in edge_port_probe()
2612 	edge_port->edge_serial = usb_get_serial_data(port->serial);  in edge_port_probe()
2613 	edge_port->bUartMode = default_uart_mode;  in edge_port_probe()
2617 		edge_port->uart_base = UMPMEM_BASE_UART1;  in edge_port_probe()
2618 		edge_port->dma_address = UMPD_OEDB1_ADDRESS;  in edge_port_probe()
2621 		edge_port->uart_base = UMPMEM_BASE_UART2;  in edge_port_probe()
2622 		edge_port->dma_address = UMPD_OEDB2_ADDRESS;  in edge_port_probe()
2632 		__func__, port->port_number, edge_port->uart_base,  in edge_port_probe()
2633 		edge_port->dma_address);  in edge_port_probe()
2635 	usb_set_serial_port_data(port, edge_port);  in edge_port_probe()
2646 	kfree(edge_port);  in edge_port_probe()
2653 	struct edgeport_port *edge_port;  in edge_port_remove()  local
2655 	edge_port = usb_get_serial_port_data(port);  in edge_port_remove()
2657 	kfree(edge_port);  in edge_port_remove()
2668 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in uart_mode_show()  local
2670 	return sprintf(buf, "%d\n", edge_port->bUartMode);  in uart_mode_show()
2677 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in uart_mode_store()  local
2683 		edge_port->bUartMode = v;  in uart_mode_store()