106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
/**
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* \addtogroup dev
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* @{
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*/
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/**
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* \defgroup radio Radio API
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*
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* The radio API module defines a set of functions that a radio device
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* driver must implement.
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*
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* @{
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*/
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/*
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* Copyright (c) 2005, Swedish Institute of Computer Science.
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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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/**
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* \file
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* Header file for the radio API
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#ifndef RADIO_H_
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#define RADIO_H_
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/**
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* The structure of a device driver for a radio in Contiki.
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*/
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struct radio_driver {
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int (* init)(void);
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/** Prepare the radio with a packet to be sent. */
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int (* prepare)(const void *payload, unsigned short payload_len);
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/** Send the packet that has previously been prepared. */
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int (* transmit)(unsigned short transmit_len);
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/** Prepare & transmit a packet. */
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int (* send)(const void *payload, unsigned short payload_len);
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/** Read a received packet into a buffer. */
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int (* read)(void *buf, unsigned short buf_len);
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/** Perform a Clear-Channel Assessment (CCA) to find out if there is
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a packet in the air or not. */
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int (* channel_clear)(void);
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/** Check if the radio driver is currently receiving a packet */
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int (* receiving_packet)(void);
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/** Check if the radio driver has just received a packet */
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int (* pending_packet)(void);
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/** Turn the radio on. */
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int (* on)(void);
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/** Turn the radio off. */
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int (* off)(void);
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};
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/* Generic radio return values. */
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enum {
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RADIO_TX_OK,
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RADIO_TX_ERR,
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RADIO_TX_COLLISION,
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RADIO_TX_NOACK,
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};
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#endif /* RADIO_H_ */
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/** @} */
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/** @} */
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