nes-proj/core/net/mac/rdc.h

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/*
* Copyright (c) 2010, 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
* RDC driver header file
* \author
* Adam Dunkels <adam@sics.se>
* Niclas Finne <nfi@sics.se>
*/
#ifndef RDC_H_
#define RDC_H_
#include "contiki-conf.h"
#include "net/mac/mac.h"
#include "net/llsec/llsec802154.h"
#ifdef RDC_CONF_WITH_DUPLICATE_DETECTION
#define RDC_WITH_DUPLICATE_DETECTION RDC_CONF_WITH_DUPLICATE_DETECTION
#else /* RDC_CONF_WITH_DUPLICATE_DETECTION */
/* As frames can be spoofed, the RDC layer should not discard a
frame because it has seen its sequence number already. Replay
protection should be implemented at the LLSEC layer where the
authenticity of frames is verified. */
#define RDC_WITH_DUPLICATE_DETECTION !LLSEC802154_ENABLED
#endif /* RDC_CONF_WITH_DUPLICATE_DETECTION */
/* List of packets to be sent by RDC layer */
struct rdc_buf_list {
struct rdc_buf_list *next;
struct queuebuf *buf;
void *ptr;
};
/**
* The structure of a RDC (radio duty cycling) driver in Contiki.
*/
struct rdc_driver {
char *name;
/** Initialize the RDC driver */
void (* init)(void);
/** Send a packet from the Rime buffer */
void (* send)(mac_callback_t sent_callback, void *ptr);
/** Send a packet list */
void (* send_list)(mac_callback_t sent_callback, void *ptr, struct rdc_buf_list *list);
/** Callback for getting notified of incoming packet. */
void (* input)(void);
/** Turn the MAC layer on. */
int (* on)(void);
/** Turn the MAC layer off. */
int (* off)(int keep_radio_on);
/** Returns the channel check interval, expressed in clock_time_t ticks. */
unsigned short (* channel_check_interval)(void);
};
#endif /* RDC_H_ */