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/*
* Copyright (c) 2005-2006 Rincon Research Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - 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.
* - Neither the name of the Rincon Research Corporation 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 COPYRIGHT HOLDERS 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
* RINCON RESEARCH OR ITS 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
*/
#include "TestPacketLink.h"
/**
* Test the effectiveness of the PacketLink layer
*
* Transmitter == 1, 2, 3, 4, or 5 (up to MAX_TRANSMITTERS)
* Receiver == 0
*
* Expect:
* Transmitter (ID not 0) -
* led1 toggling on every successfully delivered message
* led0 toggling on every unsuccessfully delivered message (and stay on
* until the next dropped packet)
*
* Receiver (ID 0) -
* Leds represent the binary count of sets of messages that were dropped
* or duplicated.
*
* Ideally, if the transmitter and receiver are in range of each other,
* the receiver's LEDs should never turn on. You can pull the receiver
* out of range for up to two seconds before the transmission will fail.
* If you aren't convinced the receiver is doing anything because its
* leds aren't flashing, just turn it off and watch the transmitter's
* reaction.
*
* @author David Moss
*/
module TestPacketLinkP {
uses {
interface Boot;
interface SplitControl as RadioSplitControl;
interface SplitControl as SerialSplitControl;
interface AMSend;
interface AMSend as SerialAMSend;
interface AMPacket;
interface Receive;
interface PacketLink;
interface Leds;
interface Timer<TMilli>;
}
}
implementation {
/** The message we'll be sending */
message_t myMsg;
/** Serial message for status */
message_t serialMsg;
/** The local count we're sending or should receive on each unique message */
uint32_t count[MAX_TRANSMITTERS];
/** The total number of packets missed by the receiver */
uint8_t missedPackets;
/** True if this mote is the transmitter mote */
bool transmitter;
enum {
MSG_DESTINATION = 0,
};
/***************** Prototypes ****************/
task void send();
task void sendSerial();
/***************** Boot Events ****************/
event void Boot.booted() {
int i;
/*
* Setup this message in advance to retry up to 50 times with 40 ms of
* delay between each message. 50 * 40 ms = 2 seconds before it quits.
* It only needs to be setup once to be stored in the msg's metadata.
*/
call PacketLink.setRetries(&myMsg, 50);
call PacketLink.setRetryDelay(&myMsg, 40);
missedPackets = 0;
for(i = 0; i < MAX_TRANSMITTERS; i++) {
count[i] = 0;
}
transmitter = (call AMPacket.address() != 0);
call RadioSplitControl.start();
if(!transmitter) {
call SerialSplitControl.start();
}
}
/***************** SplitControl Events *****************/
event void RadioSplitControl.startDone(error_t error) {
if(transmitter) {
post send();
}
}
event void RadioSplitControl.stopDone(error_t error) {
}
/***************** SerialSplitControl Events ****************/
event void SerialSplitControl.startDone(error_t error) {
}
event void SerialSplitControl.stopDone(error_t error) {
}
/***************** AMSend Events ****************/
event void AMSend.sendDone(message_t *msg, error_t error) {
if(call PacketLink.wasDelivered(msg)) {
count[0]++;
call Leds.led1Toggle();
} else {
call Leds.led0Toggle();
}
((PacketLinkMsg *) call AMSend.getPayload(&myMsg, sizeof(PacketLinkMsg)))->count = count[0];
call Timer.startOneShot(50);
}
/***************** SerialAMSend Events ****************/
event void SerialAMSend.sendDone(message_t *msg, error_t error) {
}
/***************** Receive Events ****************/
event message_t *Receive.receive(message_t *msg, void *payload, uint8_t len) {
PacketLinkMsg *linkMsg = (PacketLinkMsg *) payload;
uint16_t source = call AMPacket.source(msg);
if(transmitter || source > MAX_TRANSMITTERS - 1) {
return msg;
}
if(linkMsg->count != count[source]) {
((PacketLinkMsg *) (call SerialAMSend.getPayload(&serialMsg, sizeof(PacketLinkMsg))))->src = source;
if(linkMsg->count > count[source]) {
((PacketLinkMsg *) (call SerialAMSend.getPayload(&serialMsg, sizeof(PacketLinkMsg))))->cmd = CMD_DROPPED_PACKET;
} else {
((PacketLinkMsg *) (call SerialAMSend.getPayload(&serialMsg, sizeof(PacketLinkMsg))))->cmd = CMD_DUPLICATE_PACKET;
}
post sendSerial();
if(count[source] != 0) {
missedPackets++;
call Leds.set(missedPackets);
}
}
count[source] = linkMsg->count;
count[source]++;
return msg;
}
/***************** Timer Events ***************/
event void Timer.fired() {
post send();
}
/***************** Tasks ****************/
task void send() {
if(call AMSend.send(MSG_DESTINATION, &myMsg, sizeof(PacketLinkMsg)) != SUCCESS) {
post send();
}
}
task void sendSerial() {
if(call SerialAMSend.send(0, &serialMsg, sizeof(PacketLinkMsg)) != SUCCESS) {
post sendSerial();
}
}
}
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