118 lines
3.6 KiB
C
118 lines
3.6 KiB
C
/****************************************************************************
|
|
* net/netdev/netdev_l1size.c
|
|
*
|
|
* Copyright (C) 2017 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* 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>
|
|
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <net/if.h>
|
|
|
|
#include <nuttx/net/net.h>
|
|
#include <nuttx/net/netdev.h>
|
|
|
|
#include "netdev/netdev.h"
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: netdev_dev_l1size and netdev_type_llsize
|
|
*
|
|
* Description:
|
|
* Size of the MAC address associated with a device or with a link layer
|
|
* type.
|
|
*
|
|
* Parameters:
|
|
* dev - A reference to the device of interest
|
|
* OR
|
|
* lltype - link layer type code
|
|
*
|
|
* Returned Value:
|
|
* The size of the MAC address associated with this device
|
|
*
|
|
****************************************************************************/
|
|
|
|
int netdev_type_l1size(uint8_t lltype)
|
|
{
|
|
/* Get the length of the address for this link layer type */
|
|
|
|
#ifdef CONFIG_NET_ETHERNET
|
|
if (lltype == NET_LL_ETHERNET)
|
|
{
|
|
return IFHWADDRLEN;
|
|
}
|
|
else
|
|
#endif
|
|
#ifdef CONFIG_NET_6LOWPAN
|
|
if (lltype == NET_LL_IEEE802154)
|
|
{
|
|
#ifdef CONFIG_NET_6LOWPAN_EXTENDEDADDR
|
|
return NET_6LOWPAN_EADDRSIZE;
|
|
#else
|
|
return NET_6LOWPAN_SADDRSIZE;
|
|
#endif
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int netdev_dev_l1size(FAR struct net_driver_s *dev)
|
|
{
|
|
/* Get the length of the address for this device */
|
|
|
|
#if defined(CONFIG_NET_MULTILINK)
|
|
return netdev_type_l1size(dev->d_lltype);
|
|
#elif defined(CONFIG_NET_ETHERNET)
|
|
return IFHWADDRLEN;
|
|
#elif defined(CONFIG_NET_6LOWPAN)
|
|
#ifdef CONFIG_NET_6LOWPAN_EXTENDEDADDR
|
|
return NET_6LOWPAN_EADDRSIZE;
|
|
#else
|
|
return NET_6LOWPAN_SADDRSIZE;
|
|
#endif
|
|
#else
|
|
return 0;
|
|
#endif
|
|
}
|