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nullrdc (previously nullrdc-framer) is now a RDC implementation that does not do any radio duty cycling but supports link layer addresses and frame format via framer (for example 802.15.4). nullrdc can now be used in the same way as contikimac, xmac, etc. nullrdc-noframer (previously nullrdc) is a null RDC implementation that does not do any radio duty cycling, does not add any header of its own to the packets, and does not support link layer addresses.
102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/*
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* Copyright (c) 2007, Swedish Institute of Computer Science.
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* All rights reserved.
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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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* 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 the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be 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 INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: nullrdc-noframer.c,v 1.1 2010/11/23 18:11:00 nifi Exp $
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*/
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/**
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* \file
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* A MAC protocol that does not do anything.
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#include "net/mac/nullrdc-noframer.h"
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#include "net/packetbuf.h"
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#include "net/netstack.h"
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/*---------------------------------------------------------------------------*/
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static void
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send_packet(mac_callback_t sent, void *ptr)
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{
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int ret;
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if(NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen()) == RADIO_TX_OK) {
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ret = MAC_TX_OK;
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} else {
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ret = MAC_TX_ERR;
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}
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mac_call_sent_callback(sent, ptr, ret, 1);
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}
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/*---------------------------------------------------------------------------*/
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static void
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packet_input(void)
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{
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NETSTACK_MAC.input();
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}
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/*---------------------------------------------------------------------------*/
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static int
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on(void)
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{
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return NETSTACK_RADIO.on();
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}
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/*---------------------------------------------------------------------------*/
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static int
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off(int keep_radio_on)
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{
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if(keep_radio_on) {
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return NETSTACK_RADIO.on();
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} else {
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return NETSTACK_RADIO.off();
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}
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}
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/*---------------------------------------------------------------------------*/
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static unsigned short
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channel_check_interval(void)
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{
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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static void
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init(void)
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{
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on();
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}
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/*---------------------------------------------------------------------------*/
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const struct rdc_driver nullrdc_noframer_driver = {
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"nullrdc-noframer",
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init,
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send_packet,
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packet_input,
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on,
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off,
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channel_check_interval,
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};
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/*---------------------------------------------------------------------------*/
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