deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

Added IEEE 802.15.4e TSCH (TimeSlotted Channel Hopping) MAC layer

Browse source
This commit is contained in:
Simon Duquennoy 2015-09-21 22:01:01 +02:00
parent 1e0adbbf24
commit b0f936263e
20 changed files with 5239 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

107
core/net/mac/tsch/tsch-rpl.c Normal file
View file

@ -0,0 +1,107 @@
/*
* Copyright (c) 2014, SICS Swedish ICT.
* 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.
*
*/
/**
* \file
* Interaction between TSCH and RPL
*
* \author Simon Duquennoy <simonduq@sics.se>
*/
#if UIP_CONF_IPV6_RPL
#include "contiki.h"
#include "net/rpl/rpl.h"
#include "net/rpl/rpl-private.h"
#include "net/mac/tsch/tsch.h"
#include "net/mac/tsch/tsch-private.h"
#include "net/mac/tsch/tsch-schedule.h"
#include "net/mac/tsch/tsch-log.h"
#include "tsch-rpl.h"
#if TSCH_LOG_LEVEL >= 1
#define DEBUG DEBUG_PRINT
#else /* TSCH_LOG_LEVEL */
#define DEBUG DEBUG_NONE
#endif /* TSCH_LOG_LEVEL */
#include "net/ip/uip-debug.h"
/*---------------------------------------------------------------------------*/
/* To use, set #define TSCH_CALLBACK_JOINING_NETWORK tsch_rpl_callback_joining_network */
void
tsch_rpl_callback_joining_network(void)
{
}
/*---------------------------------------------------------------------------*/
/* Upon leaving a TSCH network, perform a local repair
* (cleanup neighbor state, reset Trickle timer etc)
* To use, set #define TSCH_CALLBACK_LEAVING_NETWORK tsch_rpl_callback_leaving_network */
void
tsch_rpl_callback_leaving_network(void)
{
rpl_dag_t *dag = rpl_get_any_dag();
if(dag != NULL) {
rpl_local_repair(dag->instance);
}
}
/*---------------------------------------------------------------------------*/
/* Set TSCH EB period based on current RPL DIO period.
* To use, set #define RPL_CALLBACK_PARENT_SWITCH tsch_rpl_callback_new_dio_interval */
void
tsch_rpl_callback_new_dio_interval(uint8_t dio_interval)
{
/* Transmit EBs only if we have a valid rank as per 6TiSCH minimal */
rpl_dag_t *dag = rpl_get_any_dag();
if(dag != NULL && dag->rank != INFINITE_RANK) {
/* If we are root set TSCH as coordinator */
if(dag->rank == ROOT_RANK(dag->instance)) {
tsch_set_coordinator(1);
}
/* Set EB period */
tsch_set_eb_period(TSCH_EB_PERIOD);
/* Set join priority based on RPL rank */
tsch_set_join_priority(DAG_RANK(dag->rank, dag->instance) - 1);
} else {
tsch_set_eb_period(0);
}
}
/*---------------------------------------------------------------------------*/
/* Set TSCH time source based on current RPL preferred parent.
* To use, set #define RPL_CALLBACK_PARENT_SWITCH tsch_rpl_callback_parent_switch */
void
tsch_rpl_callback_parent_switch(rpl_parent_t *old, rpl_parent_t *new)
{
if(tsch_is_associated == 1) {
tsch_queue_update_time_source(
(const linkaddr_t *)uip_ds6_nbr_lladdr_from_ipaddr(
rpl_get_parent_ipaddr(new)));
}
}
#endif /* UIP_CONF_IPV6_RPL */