104 lines
3.5 KiB
C
104 lines
3.5 KiB
C
/**
|
|
* \addtogroup rimebroadcast
|
|
* @{
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2006, Swedish Institute of Computer Science.
|
|
* All rights reserved.
|
|
*
|
|
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
* $Id: broadcast.c,v 1.2 2009/03/12 21:58:20 adamdunkels Exp $
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* Identified best-effort local area broadcast (broadcast)
|
|
* \author
|
|
* Adam Dunkels <adam@sics.se>
|
|
*/
|
|
|
|
#include "contiki-net.h"
|
|
#include <string.h>
|
|
|
|
static const struct packetbuf_attrlist attributes[] =
|
|
{
|
|
BROADCAST_ATTRIBUTES PACKETBUF_ATTR_LAST
|
|
};
|
|
|
|
#define DEBUG 0
|
|
#if DEBUG
|
|
#include <stdio.h>
|
|
#define PRINTF(...) printf(__VA_ARGS__)
|
|
#else
|
|
#define PRINTF(...)
|
|
#endif
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
recv_from_abc(struct abc_conn *bc)
|
|
{
|
|
rimeaddr_t sender;
|
|
struct broadcast_conn *c = (struct broadcast_conn *)bc;
|
|
|
|
rimeaddr_copy(&sender, packetbuf_addr(PACKETBUF_ADDR_SENDER));
|
|
|
|
PRINTF("%d.%d: broadcast: from %d.%d\n",
|
|
rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1],
|
|
sender.u8[0], sender.u8[1]);
|
|
c->u->recv(c, &sender);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static const struct abc_callbacks broadcast = {recv_from_abc};
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
broadcast_open(struct broadcast_conn *c, uint16_t channel,
|
|
const struct broadcast_callbacks *u)
|
|
{
|
|
abc_open(&c->c, channel, &broadcast);
|
|
c->u = u;
|
|
channel_set_attributes(channel, attributes);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
broadcast_close(struct broadcast_conn *c)
|
|
{
|
|
abc_close(&c->c);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
broadcast_send(struct broadcast_conn *c)
|
|
{
|
|
PRINTF("%d.%d: broadcast_send\n",
|
|
rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1]);
|
|
packetbuf_set_addr(PACKETBUF_ADDR_SENDER, &rimeaddr_node_addr);
|
|
return abc_send(&c->c);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @} */
|