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