mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-11-19 03:05:14 +00:00
125 lines
4.2 KiB
C
125 lines
4.2 KiB
C
|
|
/**
|
|
* \addtogroup rimeuc
|
|
* @{
|
|
*/
|
|
|
|
/*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* Single-hop unicast
|
|
* \author
|
|
* Adam Dunkels <adam@sics.se>
|
|
*/
|
|
|
|
#include "net/rime.h"
|
|
#include "net/rime/unicast.h"
|
|
#include <string.h>
|
|
|
|
static const struct packetbuf_attrlist attributes[] =
|
|
{
|
|
UNICAST_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_broadcast(struct broadcast_conn *broadcast, const rimeaddr_t *from)
|
|
{
|
|
struct unicast_conn *c = (struct unicast_conn *)broadcast;
|
|
|
|
PRINTF("%d.%d: uc: recv_from_broadcast, receiver %d.%d\n",
|
|
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
|
|
packetbuf_addr(PACKETBUF_ADDR_RECEIVER)->u8[0],
|
|
packetbuf_addr(PACKETBUF_ADDR_RECEIVER)->u8[1]);
|
|
if(rimeaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER), &rimeaddr_node_addr)) {
|
|
if(c->u->recv) {
|
|
c->u->recv(c, from);
|
|
}
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static void
|
|
sent_by_broadcast(struct broadcast_conn *broadcast, int status, int num_tx)
|
|
{
|
|
struct unicast_conn *c = (struct unicast_conn *)broadcast;
|
|
|
|
PRINTF("%d.%d: uc: sent_by_broadcast, receiver %d.%d\n",
|
|
rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
|
|
packetbuf_addr(PACKETBUF_ADDR_RECEIVER)->u8[0],
|
|
packetbuf_addr(PACKETBUF_ADDR_RECEIVER)->u8[1]);
|
|
|
|
if(c->u->sent) {
|
|
c->u->sent(c, status, num_tx);
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
static const struct broadcast_callbacks uc = {recv_from_broadcast,
|
|
sent_by_broadcast};
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
unicast_open(struct unicast_conn *c, uint16_t channel,
|
|
const struct unicast_callbacks *u)
|
|
{
|
|
broadcast_open(&c->c, channel, &uc);
|
|
c->u = u;
|
|
channel_set_attributes(channel, attributes);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
unicast_close(struct unicast_conn *c)
|
|
{
|
|
broadcast_close(&c->c);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
int
|
|
unicast_send(struct unicast_conn *c, const rimeaddr_t *receiver)
|
|
{
|
|
PRINTF("%d.%d: unicast_send to %d.%d\n",
|
|
rimeaddr_node_addr.u8[0],rimeaddr_node_addr.u8[1],
|
|
receiver->u8[0], receiver->u8[1]);
|
|
packetbuf_set_addr(PACKETBUF_ADDR_RECEIVER, receiver);
|
|
return broadcast_send(&c->c);
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
/** @} */
|