// $Id: SenseM.nc,v 1.5 2004/05/30 23:26:50 jpolastre Exp $/*									tab:4 * "Copyright (c) 2000-2003 The Regents of the University  of California.   * All rights reserved. * * Permission to use, copy, modify, and distribute this software and its * documentation for any purpose, without fee, and without written agreement is * hereby granted, provided that the above copyright notice, the following * two paragraphs and the author appear in all copies of this software. *  * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *  * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS." * * Copyright (c) 2002-2003 Intel Corporation * All rights reserved. * * This file is distributed under the terms in the attached INTEL-LICENSE      * file. If you do not find these files, copies can be found by writing to * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA,  * 94704.  Attention:  Intel License Inquiry. *//*  * Authors:  David Culler  Su Ping   *           Intel Research Berkeley Lab * * Modified: Barbara Hohlt 08/23/03 *//** * Implementation for Sense application.  (Lesson 2 in the tutorial) * * When clock fires, this application  * reads the sensor and displays the higher 3 bits of the ADC readings to LEDs. * @author David Culler * @author Su Ping * @author Intel Research Berkeley Lab **/module SenseM {  provides {    interface StdControl;  }  uses {    interface Timer;    interface ADC;    interface StdControl as ADCControl;    interface Leds;  }}implementation {  // declare module static variables here   /**    * Module scoped method.  Displays the lowest 3 bits to the LEDs,    * with RED being the most signficant and YELLOW being the least significant.    *    * @return returns <code>SUCCESS</code>    **/  // display is module static function  result_t display(uint16_t value)  {    if (value &1) call Leds.yellowOn();    else call Leds.yellowOff();    if (value &2) call Leds.greenOn();    else call Leds.greenOff();    if (value &4) call Leds.redOn();    else call Leds.redOff();    return SUCCESS;  } /**   * Initialize the component. Initialize ADCControl, Leds   *    * @return returns <code>SUCCESS</code> or <code>FAILED</code>   **/  // implement StdControl interface   command result_t StdControl.init() {    return call Leds.init();  }  /**   * Start the component. Start the clock.   *    * @return returns <code>SUCCESS</code> or <code>FAILED</code>   **/  command result_t StdControl.start() {    return call Timer.start(TIMER_REPEAT, 500);  }    /**   * Stop the component. Stop the clock.   *    * @return returns <code>SUCCESS</code> or <code>FAILED</code>   **/  command result_t StdControl.stop() {    return call Timer.stop();  }  /**   * Read sensor data in response to the <code>Timer.fired</code> event.     *   * @return The result of calling ADC.getData().   **/  event result_t Timer.fired() {    return call ADC.getData();  }  /**   * Display the upper 3 bits of sensor reading to LEDs   * in response to the <code>ADC.dataReady</code> event.     * @return Always returns <code>SUCCESS</code>   **/  // ADC data ready event handler   async event result_t ADC.dataReady(uint16_t data) {    display(7-((data>>7) &0x7));    return SUCCESS;  }}