118 lines
4.6 KiB
C
118 lines
4.6 KiB
C
/****************************************************************************
|
|
* net/devif/devif_iobsend.c
|
|
*
|
|
* Copyright (C) 2014 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 <assert.h>
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/net/iob.h>
|
|
#include <nuttx/net/netdev.h>
|
|
|
|
#ifdef CONFIG_NET_IOB
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Type Declarations
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Constant Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Constant Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Variables
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: devif_iob_send
|
|
*
|
|
* Description:
|
|
* Called from socket logic in response to a xmit or poll request from the
|
|
* the network interface driver.
|
|
*
|
|
* This is identical to calling devif_send() except that the data is
|
|
* in an I/O buffer chain, rather than a flat buffer.
|
|
*
|
|
* Assumptions:
|
|
* Called from the interrupt level or, at a minimum, with interrupts
|
|
* disabled.
|
|
*
|
|
****************************************************************************/
|
|
|
|
void devif_iob_send(FAR struct net_driver_s *dev, FAR struct iob_s *iob,
|
|
unsigned int len, unsigned int offset)
|
|
{
|
|
DEBUGASSERT(dev && len > 0 && len < NET_DEV_MTU(dev));
|
|
|
|
/* Copy the data from the I/O buffer chain to the device buffer */
|
|
|
|
iob_copyout(dev->d_appdata, iob, len, offset);
|
|
dev->d_sndlen = len;
|
|
|
|
#ifdef CONFIG_NET_TCP_WRBUFFER_DUMP
|
|
/* Dump the outgoing device buffer */
|
|
|
|
lib_dumpbuffer("devif_iob_send", dev->d_appdata, len);
|
|
#endif
|
|
}
|
|
|
|
#endif /* CONFIG_NET_IOB */
|
|
|