Contiki 2.6
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00001 /* 00002 * Copyright (c) 2007, Swedish Institute of Computer Science. 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 3. Neither the name of the Institute nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * This file is part of the Contiki operating system. 00030 * 00031 * $Id: nullmac.c,v 1.15 2010/06/14 19:19:17 adamdunkels Exp $ 00032 */ 00033 00034 /** 00035 * \file 00036 * A MAC protocol that does not do anything. 00037 * \author 00038 * Adam Dunkels <adam@sics.se> 00039 */ 00040 00041 #include "net/mac/nullmac.h" 00042 #include "net/packetbuf.h" 00043 #include "net/netstack.h" 00044 00045 /*---------------------------------------------------------------------------*/ 00046 static void 00047 send_packet(mac_callback_t sent, void *ptr) 00048 { 00049 NETSTACK_RDC.send(sent, ptr); 00050 } 00051 /*---------------------------------------------------------------------------*/ 00052 static void 00053 packet_input(void) 00054 { 00055 NETSTACK_NETWORK.input(); 00056 } 00057 /*---------------------------------------------------------------------------*/ 00058 static int 00059 on(void) 00060 { 00061 return NETSTACK_RDC.on(); 00062 } 00063 /*---------------------------------------------------------------------------*/ 00064 static int 00065 off(int keep_radio_on) 00066 { 00067 return NETSTACK_RDC.off(keep_radio_on); 00068 } 00069 /*---------------------------------------------------------------------------*/ 00070 static unsigned short 00071 channel_check_interval(void) 00072 { 00073 return 0; 00074 } 00075 /*---------------------------------------------------------------------------*/ 00076 static void 00077 init(void) 00078 { 00079 } 00080 /*---------------------------------------------------------------------------*/ 00081 const struct mac_driver nullmac_driver = { 00082 "nullmac", 00083 init, 00084 send_packet, 00085 packet_input, 00086 on, 00087 off, 00088 channel_check_interval, 00089 }; 00090 /*---------------------------------------------------------------------------*/