nes-proj/os/net/mac/csma/csma.h
2018-10-30 16:36:55 +01:00

90 lines
3.1 KiB
C

/*
* Copyright (c) 2007, 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
* The 802.15.4 standard CSMA protocol (nonbeacon-enabled)
* \author
* Adam Dunkels <adam@sics.se>
* Simon Duquennoy <simon.duquennoy@inria.fr>
*/
#ifndef CSMA_H_
#define CSMA_H_
#include "contiki.h"
#include "net/mac/mac.h"
#include "dev/radio.h"
#ifdef CSMA_CONF_SEND_SOFT_ACK
#define CSMA_SEND_SOFT_ACK CSMA_CONF_SEND_SOFT_ACK
#else /* CSMA_CONF_SEND_SOFT_ACK */
#define CSMA_SEND_SOFT_ACK 0
#endif /* CSMA_CONF_SEND_SOFT_ACK */
#ifdef CSMA_CONF_ACK_WAIT_TIME
#define CSMA_ACK_WAIT_TIME CSMA_CONF_ACK_WAIT_TIME
#else /* CSMA_CONF_ACK_WAIT_TIME */
#define CSMA_ACK_WAIT_TIME RTIMER_SECOND / 2500
#endif /* CSMA_CONF_ACK_WAIT_TIME */
#ifdef CSMA_CONF_AFTER_ACK_DETECTED_WAIT_TIME
#define CSMA_AFTER_ACK_DETECTED_WAIT_TIME CSMA_CONF_AFTER_ACK_DETECTED_WAIT_TIME
#else /* CSMA_CONF_AFTER_ACK_DETECTED_WAIT_TIME */
#define CSMA_AFTER_ACK_DETECTED_WAIT_TIME RTIMER_SECOND / 1500
#endif /* CSMA_CONF_AFTER_ACK_DETECTED_WAIT_TIME */
#define CSMA_ACK_LEN 3
/* Default MAC len for 802.15.4 classic */
#ifdef CSMA_MAC_CONF_LEN
#define CSMA_MAC_LEN CSMA_MAC_CONF_LEN
#else
#define CSMA_MAC_LEN 127 - 2
#endif
/* just a default - with LLSEC, etc */
#define CSMA_MAC_MAX_HEADER 21
extern const struct mac_driver csma_driver;
/* CSMA security framer functions */
int csma_security_create_frame(void);
int csma_security_parse_frame(void);
/* key management for CSMA */
int csma_security_set_key(uint8_t index, const uint8_t *key);
#endif /* CSMA_H_ */