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: nullrdc-noframer.c,v 1.1 2010/11/23 18:11:00 nifi 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/nullrdc-noframer.h" 00042 #include "net/packetbuf.h" 00043 #include "net/queuebuf.h" 00044 #include "net/netstack.h" 00045 #include <string.h> 00046 00047 /*---------------------------------------------------------------------------*/ 00048 static void 00049 send_packet(mac_callback_t sent, void *ptr) 00050 { 00051 int ret; 00052 if(NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen()) == RADIO_TX_OK) { 00053 ret = MAC_TX_OK; 00054 } else { 00055 ret = MAC_TX_ERR; 00056 } 00057 mac_call_sent_callback(sent, ptr, ret, 1); 00058 } 00059 /*---------------------------------------------------------------------------*/ 00060 static void 00061 send_list(mac_callback_t sent, void *ptr, struct rdc_buf_list *buf_list) 00062 { 00063 if(buf_list != NULL) { 00064 queuebuf_to_packetbuf(buf_list->buf); 00065 send_packet(sent, ptr); 00066 } 00067 } 00068 /*---------------------------------------------------------------------------*/ 00069 static void 00070 packet_input(void) 00071 { 00072 NETSTACK_MAC.input(); 00073 } 00074 /*---------------------------------------------------------------------------*/ 00075 static int 00076 on(void) 00077 { 00078 return NETSTACK_RADIO.on(); 00079 } 00080 /*---------------------------------------------------------------------------*/ 00081 static int 00082 off(int keep_radio_on) 00083 { 00084 if(keep_radio_on) { 00085 return NETSTACK_RADIO.on(); 00086 } else { 00087 return NETSTACK_RADIO.off(); 00088 } 00089 } 00090 /*---------------------------------------------------------------------------*/ 00091 static unsigned short 00092 channel_check_interval(void) 00093 { 00094 return 0; 00095 } 00096 /*---------------------------------------------------------------------------*/ 00097 static void 00098 init(void) 00099 { 00100 on(); 00101 } 00102 /*---------------------------------------------------------------------------*/ 00103 const struct rdc_driver nullrdc_noframer_driver = { 00104 "nullrdc-noframer", 00105 init, 00106 send_packet, 00107 send_list, 00108 packet_input, 00109 on, 00110 off, 00111 channel_check_interval, 00112 }; 00113 /*---------------------------------------------------------------------------*/