nuttx/net/arp/arp_poll.c
chao an 615845d9a6 net/devif: add common interface to build L2 headers
So we can hide the implementation details of L2 NICs.

Signed-off-by: chao an <anchao@xiaomi.com>
2022-11-28 14:44:15 +01:00

71 lines
2.3 KiB
C

/****************************************************************************
* net/arp/arp_poll.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <nuttx/net/netdev.h>
#include "devif/devif.h"
#include "arp/arp.h"
#ifdef CONFIG_NET_ARP_SEND
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: arp_poll
*
* Description:
* Poll all pending transfer for ARP requests to send.
*
* Assumptions:
* This function is called from the MAC device driver indirectly through
* devif_poll() and may be called from the timer interrupt/watchdog
* handler level.
*
****************************************************************************/
int arp_poll(FAR struct net_driver_s *dev, devif_poll_callback_t callback)
{
/* Setup for the ARP callback (most of these do not apply) */
dev->d_appdata = NULL;
dev->d_len = 0;
dev->d_sndlen = 0;
/* Perform the ARP callbacks */
devif_conn_event(dev, ARP_POLL, dev->d_conncb);
/* Call back into the driver */
return devif_poll_out(dev, callback);
}
#endif /* CONFIG_NET_ARP_SEND */