new radio driver (allows for transmissions longer than one tick)
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fros4943
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c69f9298a4
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@ -1,32 +1,30 @@
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/*
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* Copyright (c) 2006, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Copyright (c) 2006, Swedish Institute of Computer Science. All rights
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* 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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* $Id: Radio.java,v 1.1 2006/08/21 12:12:59 fros4943 Exp $
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer. 2. Redistributions in
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* binary form must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution. 3. Neither the name of the
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* Institute nor the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: Radio.java,v 1.2 2006/10/02 15:10:57 fros4943 Exp $
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*/
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package se.sics.cooja.interfaces;
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@ -35,99 +33,94 @@ import se.sics.cooja.*;
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/**
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* A Radio represents a mote radio transceiver. An implementation should notify
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* all observers both when packets are received and transmitted. The static
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* constants should be used for describing the radio status when the observers
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* are notified.
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* all observers both when packets are received and transmitted.
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*
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* @see #SENT_NOTHING
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* @see #SENT_SOMETHING
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* @see #HEARS_NOTHING
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* @see #HEARS_PACKET
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* @see #HEARS_NOISE
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* @author Fredrik Osterlind
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*/
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@ClassDescription("Packet Radio")
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public abstract class Radio extends MoteInterface {
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/**
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* This radio has not sent anything last tick.
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* Events that radios should notify observers about.
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*/
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public static final int SENT_NOTHING = 1;
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public enum RadioEvent {
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UNKNOWN,
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HW_OFF, HW_ON,
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RECEPTION_STARTED, RECEPTION_INTERFERED, RECEPTION_FINISHED,
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TRANSMISSION_STARTED, TRANSMISSION_FINISHED
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}
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/**
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* This radio has sent something last tick.
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* Returns last significant event at this radio. Method may for example be
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* used to learn the reason when a radio notifies a change to observers.
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*
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* @return Last radio event
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*/
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public static final int SENT_SOMETHING = 2;
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public abstract RadioEvent getLastEvent();
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/**
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* This radio is not hearing anything.
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* @return Last packet data transmitted, or currently being transmitted, from
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* this radio.
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*/
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public static final int HEARS_NOTHING = 1;
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public abstract byte[] getLastPacketTransmitted();
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/**
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* This radio is hearing exactly one packet right now.
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*/
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public static final int HEARS_PACKET = 2;
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/**
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* This radio is hearing a lot of noise right now (may be several packets).
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*/
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public static final int HEARS_NOISE = 3;
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/**
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* @return Last packet data sent from this radio.
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*/
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public abstract byte[] getLastPacketSent();
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/**
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* @return Last packet data received by this radio.
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* @return Last packet data received, or currently being received, by this
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* radio.
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*/
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public abstract byte[] getLastPacketReceived();
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/**
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* Send given packet data to this radio. The radio may or may not receive the
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* data correctly depending on the current listen state.
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* Receive given packet in given time. If reception is not interfered during
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* this time, the packet will be delivered ok.
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*
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* @param data
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* Packet data
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* @param endTime
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* Time (ms) when reception is finished
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*/
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public abstract void receivePacket(byte[] data);
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public abstract void receivePacket(byte[] data, int endTime);
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/**
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* @return Current send state
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* @see #SENT_NOTHING
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* @see #SENT_SOMETHING
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* Returns true if this radio is transmitting, or just finished transmitting,
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* data.
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*
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* @see #getLastPacketTransmitted()
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* @return True if radio is transmitting data
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*/
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public abstract int getSendState();
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public abstract boolean isTransmitting();
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/**
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* @return Current listen state
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*
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* @see #setListenState(int)
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* @see #HEARS_NOTHING
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* @see #HEARS_PACKET
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* @see #HEARS_NOISE
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* @return Transmission end time if any transmission active
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*/
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public abstract int getListenState();
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public abstract int getTransmissionEndTime();
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/**
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* Changes listen state to given state
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* @param newState
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* New listen state
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*
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* @see #getListenState()
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* @see #HEARS_NOTHING
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* @see #HEARS_PACKET
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* @see #HEARS_NOISE
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*/
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public abstract void setListenState(int newState);
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/**
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* Advances listen state one step. If listen state was 'hears nothing', it
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* will become 'hears packet'. If it was 'hears packet', it will become 'hears
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* noise'. If it was 'hears noise', it will stay that way.
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* Returns true if this radio is receiving data.
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*
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* @see #getListenState()
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* @see #getLastPacketReceived()
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* @return True if radio is receiving data
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*/
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public abstract void advanceListenState();
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public abstract boolean isReceiving();
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/**
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* If any packet has been received but not yet taken care of, this packet will
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* be removed. This method can be used to simulate significant interference
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* during transmissions.
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*/
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public abstract void interferReception();
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/**
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* @return Current surrounding signal strength
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*/
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public abstract double getCurrentSignalStrength();
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/**
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* Sets surrounding signal strength.
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*
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* @param signalStrength
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* Current surrounding signal strength
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*/
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public abstract void setCurrentSignalStrength(double signalStrength);
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}
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