220 static void stop_read(struct edgeport_port *edge_port);
221 static int restart_read(struct edgeport_port *edge_port);
1551 static void handle_new_msr(struct edgeport_port *edge_port, u8 msr)  in handle_new_msr()  argument
1556 	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, msr);  in handle_new_msr()
1560 		icount = &edge_port->port->icount;  in handle_new_msr()
1571 		wake_up_interruptible(&edge_port->port->port.delta_msr_wait);  in handle_new_msr()
1575 	edge_port->shadow_msr = msr & 0xf0;  in handle_new_msr()
1577 	tty = tty_port_tty_get(&edge_port->port->port);  in handle_new_msr()
1586 static void handle_new_lsr(struct edgeport_port *edge_port, int lsr_data,  in handle_new_lsr()  argument
1593 	dev_dbg(&edge_port->port->dev, "%s - %02x\n", __func__, new_lsr);  in handle_new_lsr()
1595 	edge_port->shadow_lsr = lsr;  in handle_new_lsr()
1606 		edge_tty_recv(edge_port->port, &data, 1);  in handle_new_lsr()
1609 	icount = &edge_port->port->icount;  in handle_new_lsr()
1624 	struct edgeport_port *edge_port;  in edge_interrupt_callback()  local
1676 	edge_port = usb_get_serial_port_data(port);  in edge_interrupt_callback()
1677 	if (!edge_port) {  in edge_interrupt_callback()
1690 			edge_port->lsr_event = 1;  in edge_interrupt_callback()
1691 			edge_port->lsr_mask = lsr;  in edge_interrupt_callback()
1695 			handle_new_lsr(edge_port, 0, lsr, 0);  in edge_interrupt_callback()
1704 		handle_new_msr(edge_port, msr);  in edge_interrupt_callback()
1725 	struct edgeport_port *edge_port = urb->context;  in edge_bulk_in_callback()  local
1726 	struct device *dev = &edge_port->port->dev;  in edge_bulk_in_callback()
1755 	port_number = edge_port->port->port_number;  in edge_bulk_in_callback()
1757 	if (urb->actual_length > 0 && edge_port->lsr_event) {  in edge_bulk_in_callback()
1758 		edge_port->lsr_event = 0;  in edge_bulk_in_callback()
1760 			__func__, port_number, edge_port->lsr_mask, *data);  in edge_bulk_in_callback()
1761 		handle_new_lsr(edge_port, 1, edge_port->lsr_mask, *data);  in edge_bulk_in_callback()
1769 		if (edge_port->close_pending)  in edge_bulk_in_callback()
1773 			edge_tty_recv(edge_port->port, data,  in edge_bulk_in_callback()
1775 		edge_port->port->icount.rx += urb->actual_length;  in edge_bulk_in_callback()
1780 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_bulk_in_callback()
1781 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)  in edge_bulk_in_callback()
1783 	else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING)  in edge_bulk_in_callback()
1784 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;  in edge_bulk_in_callback()
1786 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_bulk_in_callback()
1806 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_bulk_out_callback()  local
1810 	edge_port->ep_write_urb_in_use = 0;  in edge_bulk_out_callback()
1836 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_open()  local
1844 	if (edge_port == NULL)  in edge_open()
1850 	status = ti_do_config(edge_port, UMPC_SET_CLR_LOOPBACK, 0);  in edge_open()
1867 	edge_port->ump_read_timeout =  in edge_open()
1903 	status = read_port_cmd(port, UMPC_READ_MSR, 0, &edge_port->shadow_msr, 1);  in edge_open()
1910 	dev_dbg(&port->dev, "ShadowMSR 0x%X\n", edge_port->shadow_msr);  in edge_open()
1913 	edge_port->shadow_mcr = MCR_RTS | MCR_DTR;  in edge_open()
1914 	dev_dbg(&port->dev, "ShadowMCR 0x%X\n", edge_port->shadow_mcr);  in edge_open()
1916 	edge_serial = edge_port->edge_serial;  in edge_open()
1941 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;  in edge_open()
1942 	urb->context = edge_port;  in edge_open()
1956 	if (edge_port->edge_serial->num_ports_open == 0)  in edge_open()
1966 	struct edgeport_port *edge_port;  in edge_close()  local
1970 	edge_port = usb_get_serial_port_data(port);  in edge_close()
1971 	if (edge_serial == NULL || edge_port == NULL)  in edge_close()
1978 	edge_port->close_pending = 1;  in edge_close()
1982 	edge_port->ep_write_urb_in_use = 0;  in edge_close()
1983 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_close()
1985 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_close()
1991 	--edge_port->edge_serial->num_ports_open;  in edge_close()
1992 	if (edge_port->edge_serial->num_ports_open <= 0) {  in edge_close()
1995 		edge_port->edge_serial->num_ports_open = 0;  in edge_close()
1998 	edge_port->close_pending = 0;  in edge_close()
2004 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_write()  local
2011 	if (edge_port == NULL)  in edge_write()
2013 	if (edge_port->close_pending == 1)  in edge_write()
2017 							&edge_port->ep_lock);  in edge_write()
2026 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_send()  local
2029 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_send()
2031 	if (edge_port->ep_write_urb_in_use) {  in edge_send()
2032 		spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2041 		spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2045 	edge_port->ep_write_urb_in_use = 1;  in edge_send()
2047 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_send()
2060 		edge_port->ep_write_urb_in_use = 0;  in edge_send()
2063 		edge_port->port->icount.tx += count;  in edge_send()
2076 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_write_room()  local
2080 	if (edge_port == NULL)  in edge_write_room()
2082 	if (edge_port->close_pending == 1)  in edge_write_room()
2085 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_write_room()
2087 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_write_room()
2096 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_chars_in_buffer()  local
2099 	if (edge_port == NULL)  in edge_chars_in_buffer()
2102 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_chars_in_buffer()
2104 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_chars_in_buffer()
2112 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tx_empty()  local
2115 	ret = tx_active(edge_port);  in edge_tx_empty()
2125 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_throttle()  local
2128 	if (edge_port == NULL)  in edge_throttle()
2145 		stop_read(edge_port);  in edge_throttle()
2152 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_unthrottle()  local
2155 	if (edge_port == NULL)  in edge_unthrottle()
2171 		status = restart_read(edge_port);  in edge_unthrottle()
2180 static void stop_read(struct edgeport_port *edge_port)  in stop_read()  argument
2184 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in stop_read()
2186 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)  in stop_read()
2187 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPING;  in stop_read()
2188 	edge_port->shadow_mcr &= ~MCR_RTS;  in stop_read()
2190 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in stop_read()
2193 static int restart_read(struct edgeport_port *edge_port)  in restart_read()  argument
2199 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in restart_read()
2201 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) {  in restart_read()
2202 		urb = edge_port->port->read_urb;  in restart_read()
2205 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;  in restart_read()
2206 	edge_port->shadow_mcr |= MCR_RTS;  in restart_read()
2208 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in restart_read()
2214 		struct edgeport_port *edge_port, const struct ktermios *old_termios)  in change_port_settings()  argument
2216 	struct device *dev = &edge_port->port->dev;  in change_port_settings()
2235 	config->bUartMode = (u8)(edge_port->bUartMode);  in change_port_settings()
2287 		restart_read(edge_port);  in change_port_settings()
2326 	edge_port->baud_rate = baud;  in change_port_settings()
2346 	status = send_port_cmd(edge_port->port, UMPC_SET_CONFIG, 0, config,  in change_port_settings()
2358 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_set_termios()  local
2360 	if (edge_port == NULL)  in edge_set_termios()
2363 	change_port_settings(tty, edge_port, old_termios);  in edge_set_termios()
2370 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tiocmset()  local
2374 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_tiocmset()
2375 	mcr = edge_port->shadow_mcr;  in edge_tiocmset()
2390 	edge_port->shadow_mcr = mcr;  in edge_tiocmset()
2391 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_tiocmset()
2393 	restore_mcr(edge_port, mcr);  in edge_tiocmset()
2400 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_tiocmget()  local
2406 	spin_lock_irqsave(&edge_port->ep_lock, flags);  in edge_tiocmget()
2408 	msr = edge_port->shadow_msr;  in edge_tiocmget()
2409 	mcr = edge_port->shadow_mcr;  in edge_tiocmget()
2419 	spin_unlock_irqrestore(&edge_port->ep_lock, flags);  in edge_tiocmget()
2427 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in edge_break()  local
2434 	status = ti_do_config(edge_port, UMPC_SET_CLR_BREAK, bv);  in edge_break()
2551 	struct edgeport_port *edge_port;  in edge_port_probe()  local
2554 	edge_port = kzalloc(sizeof(*edge_port), GFP_KERNEL);  in edge_port_probe()
2555 	if (!edge_port)  in edge_port_probe()
2558 	spin_lock_init(&edge_port->ep_lock);  in edge_port_probe()
2559 	edge_port->port = port;  in edge_port_probe()
2560 	edge_port->edge_serial = usb_get_serial_data(port->serial);  in edge_port_probe()
2561 	edge_port->bUartMode = default_uart_mode;  in edge_port_probe()
2565 		edge_port->uart_base = UMPMEM_BASE_UART1;  in edge_port_probe()
2566 		edge_port->dma_address = UMPD_OEDB1_ADDRESS;  in edge_port_probe()
2569 		edge_port->uart_base = UMPMEM_BASE_UART2;  in edge_port_probe()
2570 		edge_port->dma_address = UMPD_OEDB2_ADDRESS;  in edge_port_probe()
2580 		__func__, port->port_number, edge_port->uart_base,  in edge_port_probe()
2581 		edge_port->dma_address);  in edge_port_probe()
2583 	usb_set_serial_port_data(port, edge_port);  in edge_port_probe()
2597 	kfree(edge_port);  in edge_port_probe()
2604 	struct edgeport_port *edge_port;  in edge_port_remove()  local
2606 	edge_port = usb_get_serial_port_data(port);  in edge_port_remove()
2608 	kfree(edge_port);  in edge_port_remove()
2617 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in uart_mode_show()  local
2619 	return sprintf(buf, "%d\n", edge_port->bUartMode);  in uart_mode_show()
2626 	struct edgeport_port *edge_port = usb_get_serial_port_data(port);  in uart_mode_store()  local
2632 		edge_port->bUartMode = v;  in uart_mode_store()