6a3c2aded6
* Simplify EINTR/ECANCEL error handling 1. Add semaphore uninterruptible wait function 2 .Replace semaphore wait loop with a single uninterruptible wait 3. Replace all sem_xxx to nxsem_xxx * Unify the void cast usage 1. Remove void cast for function because many place ignore the returned value witout cast 2. Replace void cast for variable with UNUSED macro
149 lines
4.8 KiB
C
149 lines
4.8 KiB
C
/****************************************************************************
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* net/netdev/netdev_txnotify.c
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*
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* Copyright (C) 2007-2009, 2012, 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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#include <sys/types.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 <nuttx/net/netdev.h>
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#include <nuttx/net/ip.h>
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#include "netdev/netdev.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: netdev_ipv4_txnotify
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*
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* Description:
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* Notify the device driver that forwards the IPv4 address that new TX
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* data is available.
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*
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* Input Parameters:
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* lipaddr - The local address bound to the socket
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* ripaddr - The remote address to send the data
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv4
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void netdev_ipv4_txnotify(in_addr_t lipaddr, in_addr_t ripaddr)
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{
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FAR struct net_driver_s *dev;
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/* Find the device driver that serves the subnet of the remote address */
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dev = netdev_findby_ripv4addr(lipaddr, ripaddr);
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if (dev && dev->d_txavail)
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{
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/* Notify the device driver that new TX data is available. */
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dev->d_txavail(dev);
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}
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}
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#endif /* CONFIG_NET_IPv4 */
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/****************************************************************************
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* Name: netdev_ipv6_txnotify
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*
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* Description:
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* Notify the device driver that forwards the IPv4 address that new TX
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* data is available.
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*
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* Input Parameters:
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* lipaddr - The local address bound to the socket
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* ripaddr - The remote address to send the data
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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#ifdef CONFIG_NET_IPv6
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void netdev_ipv6_txnotify(FAR const net_ipv6addr_t lipaddr,
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FAR const net_ipv6addr_t ripaddr)
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{
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FAR struct net_driver_s *dev;
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/* Find the device driver that serves the subnet of the remote address */
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dev = netdev_findby_ripv6addr(lipaddr, ripaddr);
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if (dev && dev->d_txavail)
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{
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/* Notify the device driver that new TX data is available. */
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dev->d_txavail(dev);
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}
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}
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#endif /* CONFIG_NET_IPv6 */
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/****************************************************************************
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* Name: netdev_txnotify_dev
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*
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* Description:
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* Notify the device driver that new TX data is available. This variant
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* would be called when the upper level logic already understands how the
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* packet will be routed.
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*
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* Input Parameters:
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* dev - The network device driver state structure.
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void netdev_txnotify_dev(FAR struct net_driver_s *dev)
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{
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if (dev != NULL && dev->d_txavail != NULL)
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{
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/* Notify the device driver that new TX data is available. */
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dev->d_txavail(dev);
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}
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}
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