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Added Orchestra, an autonomous scheduler for TSCH exploiting the local RPL state to maintain slotframes and links

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Simon Duquennoy 2015-09-21 18:52:26 +02:00
parent 20c97367a9
commit bc1e27cab7
8 changed files with 793 additions and 0 deletions
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apps/orchestra/orchestra-rule-default-common.c Normal file
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/*
* Copyright (c) 2015, 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.
*
*/
/**
* \file
* Orchestra: a slotframe with a single shared link, common to all nodes
* in the network, used for unicast and broadcast.
*
* \author Simon Duquennoy <simonduq@sics.se>
*/
#include "contiki.h"
#include "orchestra.h"
static uint16_t slotframe_handle = 0;
static uint16_t channel_offset = 0;
#if ORCHESTRA_EBSF_PERIOD > 0
/* There is a slotframe for EBs, use this slotframe for non-EB traffic only */
#define ORCHESTRA_COMMON_SHARED_TYPE LINK_TYPE_NORMAL
#else
/* There is no slotframe for EBs, use this slotframe both EB and non-EB traffic */
#define ORCHESTRA_COMMON_SHARED_TYPE LINK_TYPE_ADVERTISING
#endif
/*---------------------------------------------------------------------------*/
static int
select_packet(uint16_t *slotframe, uint16_t *timeslot)
{
/* We are the default slotframe, select anything */
if(slotframe != NULL) {
*slotframe = slotframe_handle;
}
if(timeslot != NULL) {
*timeslot = 0;
}
return 1;
}
/*---------------------------------------------------------------------------*/
static void
init(uint16_t sf_handle)
{
slotframe_handle = sf_handle;
channel_offset = slotframe_handle;
/* Default slotframe: for broadcast or unicast to neighbors we
* do not have a link to */
struct tsch_slotframe *sf_common = tsch_schedule_add_slotframe(slotframe_handle, ORCHESTRA_COMMON_SHARED_PERIOD);
tsch_schedule_add_link(sf_common,
LINK_OPTION_RX | LINK_OPTION_TX | LINK_OPTION_SHARED,
ORCHESTRA_COMMON_SHARED_TYPE, &tsch_broadcast_address,
0, channel_offset);
}
/*---------------------------------------------------------------------------*/
struct orchestra_rule default_common = {
init,
NULL,
select_packet,
NULL,
NULL,
};