mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-23 16:29:34 +00:00
87 lines
3.3 KiB
C
87 lines
3.3 KiB
C
|
/*
|
||
|
|
* 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,
|
||
|
|
};
|