--- /dev/null
+/*
+ * 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
+ */
+
+/**
+ * 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
+ */
+
+#include "TestPacketLink.h"
+
+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))->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)))->src = source;
+ if(linkMsg->count > count[source]) {
+ ((PacketLinkMsg *) (call SerialAMSend.getPayload(&serialMsg)))->cmd = CMD_DROPPED_PACKET;
+ } else {
+ ((PacketLinkMsg *) (call SerialAMSend.getPayload(&serialMsg)))->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();
+ }
+ }
+}
+
projects / tinyos-2.x.git / blobdiff