| /**************************************************************************** |
| * net/netdev_carrier.c |
| * |
| * Copyright (C) 2014 Gregory Nutt. All rights reserved. |
| * Author: Max Holtzberg <mh@uvc.de> |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * 3. Neither the name NuttX nor the names of its contributors may be |
| * used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| #if defined(CONFIG_NET) && CONFIG_NSOCKET_DESCRIPTORS > 0 |
| |
| #include <sys/socket.h> |
| #include <stdio.h> |
| #include <semaphore.h> |
| #include <assert.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <debug.h> |
| |
| #include <net/if.h> |
| #include <net/ethernet.h> |
| #include <nuttx/net/netdev.h> |
| |
| #include "net.h" |
| |
| /**************************************************************************** |
| * Definitions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Private Types |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Private Data |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Public Data |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Private Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Global Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Function: netdev_carrier_on |
| * |
| * Description: |
| * Notifies the uip layer about an available carrier. |
| * (e.g. a cable was plugged in) |
| * |
| * Parameters: |
| * dev - The device driver structure |
| * |
| * Returned Value: |
| * 0:Success; negated errno on failure |
| * |
| ****************************************************************************/ |
| |
| int netdev_carrier_on(FAR struct uip_driver_s *dev) |
| { |
| if (dev) |
| { |
| dev->d_flags |= IFF_RUNNING; |
| return OK; |
| } |
| |
| return -EINVAL; |
| } |
| |
| /**************************************************************************** |
| * Function: netdev_carrier_off |
| * |
| * Description: |
| * Notifies the uip layer about an disappeared carrier. |
| * (e.g. a cable was unplugged) |
| * |
| * Parameters: |
| * dev - The device driver structure |
| * |
| * Returned Value: |
| * 0:Success; negated errno on failure |
| * |
| ****************************************************************************/ |
| |
| int netdev_carrier_off(FAR struct uip_driver_s *dev) |
| { |
| if (dev) |
| { |
| dev->d_flags &= ~IFF_RUNNING; |
| return OK; |
| } |
| |
| return -EINVAL; |
| } |
| |
| #endif /* CONFIG_NET && CONFIG_NSOCKET_DESCRIPTORS */ |