Added IEEE 802.15.4e TSCH (TimeSlotted Channel Hopping) MAC layer
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Simon Duquennoy
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1e0adbbf24
commit
b0f936263e
20 changed files with 5239 additions and 2 deletions
167
core/net/mac/tsch/tsch.h
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167
core/net/mac/tsch/tsch.h
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/*
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* Copyright (c) 2015, SICS Swedish ICT.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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#ifndef __TSCH_H__
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#define __TSCH_H__
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/********** Includes **********/
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#include "contiki.h"
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#include "net/mac/mac.h"
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#include "net/mac/tsch/tsch-security.h"
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/******** Configuration *******/
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/* Max time before sending a unicast keep-alive message to the time source */
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#ifdef TSCH_CONF_KEEPALIVE_TIMEOUT
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#define TSCH_KEEPALIVE_TIMEOUT TSCH_CONF_KEEPALIVE_TIMEOUT
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#else
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/* Time to desynch assuming a drift of 40 PPM (80 PPM between two nodes) and guard time of +/-1ms: 12.5s. */
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#define TSCH_KEEPALIVE_TIMEOUT (12 * CLOCK_SECOND)
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#endif
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/* Max time without synchronization before leaving the PAN */
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#ifdef TSCH_CONF_DESYNC_THRESHOLD
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#define TSCH_DESYNC_THRESHOLD TSCH_CONF_DESYNC_THRESHOLD
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#else
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#define TSCH_DESYNC_THRESHOLD (4 * TSCH_KEEPALIVE_TIMEOUT)
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#endif
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/* Period between two consecutive EBs */
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#ifdef TSCH_CONF_EB_PERIOD
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#define TSCH_EB_PERIOD TSCH_CONF_EB_PERIOD
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#else
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#define TSCH_EB_PERIOD (4 * CLOCK_SECOND)
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#endif
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/* Max acceptable join priority */
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#ifdef TSCH_CONF_MAX_JOIN_PRIORITY
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#define TSCH_MAX_JOIN_PRIORITY TSCH_CONF_MAX_JOIN_PRIORITY
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#else
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#define TSCH_MAX_JOIN_PRIORITY 32
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#endif
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/* Start TSCH automatically after init? If not, the upper layers
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* must call NETSTACK_MAC.on() to start it. Useful when the
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* application needs to control when the nodes are to start
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* scanning or advertising.*/
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#ifdef TSCH_CONF_AUTOSTART
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#define TSCH_AUTOSTART TSCH_CONF_AUTOSTART
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#else
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#define TSCH_AUTOSTART 1
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#endif
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/* Join only secured networks? (discard EBs with security disabled) */
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#ifdef TSCH_CONF_JOIN_SECURED_ONLY
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#define TSCH_JOIN_SECURED_ONLY TSCH_CONF_JOIN_SECURED_ONLY
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#else
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/* By default, set if TSCH_SECURITY_ENABLED is also non-zero */
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#define TSCH_JOIN_SECURED_ONLY TSCH_SECURITY_ENABLED
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#endif
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/* By default, join any PAN ID. Otherwise, wait for an EB from IEEE802154_PANID */
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#ifdef TSCH_CONF_JOIN_MY_PANID_ONLY
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#define TSCH_JOIN_MY_PANID_ONLY TSCH_CONF_JOIN_MY_PANID_ONLY
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#else
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#define TSCH_JOIN_MY_PANID_ONLY 0
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#endif
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/* The radio polling frequency (in Hz) during association process */
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#ifdef TSCH_CONF_ASSOCIATION_POLL_FREQUENCY
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#define TSCH_ASSOCIATION_POLL_FREQUENCY TSCH_CONF_ASSOCIATION_POLL_FREQUENCY
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#else
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#define TSCH_ASSOCIATION_POLL_FREQUENCY 100
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#endif
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/* When associating, check ASN against our own uptime (time in minutes)..
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* Useful to force joining only with nodes started roughly at the same time.
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* Set to the max number of minutes acceptable. */
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#ifdef TSCH_CONF_CHECK_TIME_AT_ASSOCIATION
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#define TSCH_CHECK_TIME_AT_ASSOCIATION TSCH_CONF_CHECK_TIME_AT_ASSOCIATION
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#else
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#define TSCH_CHECK_TIME_AT_ASSOCIATION 0
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#endif
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/* By default: initialize schedule from EB when associating, using the
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* slotframe and links Information Element */
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#ifdef TSCH_CONF_INIT_SCHEDULE_FROM_EB
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#define TSCH_INIT_SCHEDULE_FROM_EB TSCH_CONF_INIT_SCHEDULE_FROM_EB
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#else
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#define TSCH_INIT_SCHEDULE_FROM_EB 1
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#endif
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/* An ad-hoc mechanism to have TSCH select its time source without the
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* help of an upper-layer, simply by collecting statistics on received
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* EBs and their join priority. Disabled by default as we recomment
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* mapping the time source on the RPL preferred parent
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* (via tsch_rpl_callback_parent_switch) */
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#ifdef TSCH_CONF_AUTOSELECT_TIME_SOURCE
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#define TSCH_AUTOSELECT_TIME_SOURCE TSCH_CONF_AUTOSELECT_TIME_SOURCE
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#else
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#define TSCH_AUTOSELECT_TIME_SOURCE 0
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#endif /* TSCH_CONF_EB_AUTOSELECT */
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/*********** Callbacks *********/
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/* Called by TSCH when joining a network */
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#ifdef TSCH_CALLBACK_JOINING_NETWORK
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void TSCH_CALLBACK_JOINING_NETWORK();
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#endif
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/* Called by TSCH when leaving a network */
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#ifdef TSCH_CALLBACK_LEAVING_NETWORK
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void TSCH_CALLBACK_LEAVING_NETWORK();
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#endif
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/***** External Variables *****/
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/* Are we coordinator of the TSCH network? */
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extern int tsch_is_coordinator;
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/* Are we associated to a TSCH network? */
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extern int tsch_is_associated;
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/* Is the PAN running link-layer security? */
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extern int tsch_is_pan_secured;
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/* The TSCH MAC driver */
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extern const struct mac_driver tschmac_driver;
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/********** Functions *********/
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/* The the TSCH join priority */
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void tsch_set_join_priority(uint8_t jp);
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/* The the period at which EBs are sent */
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void tsch_set_eb_period(uint32_t period);
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/* Set the node as PAN coordinator */
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void tsch_set_coordinator(int enable);
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/* Set the pan as secured or not */
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void tsch_set_pan_secured(int enable);
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#endif /* __TSCH_H__ */
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