if_os.c

ppp source code for ucip

/*****************************************************************************
* if_os.c - Implementation function library for interface drivers.
*
* portions Copyright (c) 2001 by Partner Voxtream A/S.
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice and the following disclaimer are included verbatim in any 
* distributions. No written agreement, license, or royalty fee is required
* for any of the authorized uses.
*
* THIS SOFTWARE IS PROVIDED BY THE 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 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.
*
******************************************************************************
* REVISION HISTORY (please don't use tabs!)
*
*(dd-mm-yyyy)
* 01-03-2001 Mads Christiansen <[e-mail]>, Partner Voxtream.
*            Original file.
*
*****************************************************************************/
#ifndef IF_OS_C
#define IF_OS_C

#include "..\..\netconf.h"
#include "..\..\netbuf.h"
#include "if_ne2k.h"
#include "if_os.h"

void Ne2kReceiveEvent(void) 
{
  // Will be called for every packet received by the NIC
  // TO DO: EMPTY PACKETS FROM NIC
  //        You can use Ne2kReceiveReady(...) to verify that a packet is available and
  //        to get the size of the available packet (which is needed!)
  //        Use Ne2kReceive(...) to get the next available packet
  //        Ne2kReceive MUST BE CALLED, SINCE IT HANDLES BUFFER OVERWRITE WARNINGS
  //        Sorry but Ne2kReceive does not (currently) support NBufs.
  //        - so here would be a good place to put the received ethernet packet in NBufs
  //        - and maybe add it to an input queue 
  Ne2kReceive(NULL, 0);
}


void Ne2kTransmitEvent(void)
{
  // Will be called for every packet transmitted by the NIC (== good place to remove 
  //  packets from transmit queue)
  // TO DO: YOU CAN TRANSMIT A NEW PACKET  
  //        You can use Ne2TransmitReady(...) to really verify that you can send a new packet 
  //        Use Ne2kTransmit(...) to send a new packet
  //        Sorry but Ne2kTransmit does not (currently) support NBufs.
  //        - so here would be a good place to copy the entire ethernet packet from the 
  //          NBuf(s) (chain) to a raw format and send it. 
  //        If the NIC is not ready to transmit Ne2kTransmit does not send it, so verify first.
}


#endif