// $Id: MicaSBTest2M.nc,v 1.3 2004/12/21 18:59:27 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:  Alec Woo * Last Modified:  $Id: MicaSBTest2M.nc,v 1.3 2004/12/21 18:59:27 jpolastre Exp $ *//** * Implementation for MicaSBTest2 application. *  * The MicaSBTest2 tests out light, microphone, and sounder.   * Covering the light sensor will trigger the sounder to beeps.  If the microphone * detects the sounder's signal, it will turn on the yellow LED to signal the * tone is detected. *  * @author Alec Woo **/module MicaSBTest2M {  provides {    interface StdControl;  }  uses {    interface Timer;    interface Leds;    interface StdControl as MicControl;    interface ADC as MicADC;    interface Mic;    interface StdControl as Sounder;    interface ADC as PhotoADC;    interface StdControl as PhotoControl;  }}implementation {  // declare module static variables here    char state;  char count;  char light;  char detected;  task void SounderStart() {    call Sounder.start();  }  task void SounderStop() {    call Sounder.stop();  }  /**   * Initialize the component. Initialize the Mic, Photo, and Sounder.   *   * @return returns <code>SUCCESS</code>   **/                         command result_t StdControl.init() {    state = FALSE;    call Leds.init();    call MicControl.init();    call MicControl.init();    call Mic.muxSel(1);  // Set the mux so that raw microhpone output is selected. (refer to Mic.ti)    call Mic.gainAdjust(64);  // Set the gain of the microphone.  (refer to Mic.ti)    call PhotoControl.init();    call Sounder.init();    return SUCCESS;  }  /**   * Start the component, Mic, Timer, and Photo   *   * @return returns <code>SUCCESS</code> or <code>FAIL</code>   **/                         command result_t StdControl.start() {    call MicControl.start();    call MicControl.start();    call PhotoControl.start();    return call Timer.start(TIMER_REPEAT, 8); // 128 pulses per second  }  /**   * Stop the component, Mic, Timer, and Photo.   *   * @return returns <code>SUCCESS</code> or <code>FAIL</code>   **/                         command result_t StdControl.stop() {    call MicControl.stop();    call MicControl.stop();    call PhotoControl.stop();    return call Timer.stop();  }  /**   * In response to the <code>Timer.fired</code> event, toggle the LED,   * sample the tone detector's output from the microphone, and perform   * simple filtering to eliminate false negatives and positives from the tone   * detector.   *   * @return returns <code>SUCCESS</code>   **/                         event result_t Timer.fired()  {    char in;    if (state < 5){      state++;      call Leds.redOn();    }else{      state++;      if (state > 25)	state = 0;      call Leds.redOff();    }        if (state == 0){      call PhotoADC.getData();    }    /* Read the input from the tone detector */    in = call Mic.readToneDetector();    // Low pass filtering    if (in == 0){      if (count < 32)	count++;    }else{      if (count > 0)	count--;    }    // Threshold detection setting    if (detected == 1){      light--;      if (light == 0){	call Leds.yellowOff();	detected = 0;      }    }        if (count > 5){      call Leds.yellowOn();      detected = 1;      light = 16;    }        return SUCCESS;  }  /**   * In response to the <code>MicADC.dataReady</code> event, do nothing.   *   * @return returns <code>SUCCESS</code>   **/                         async event result_t MicADC.dataReady(uint16_t data)  {    return SUCCESS;  }  /**   * In response to the <code>PhotoADC.dataReady</code> event,    * turn Sounder on if it is dark.   *   * @return returns <code>SUCCESS</code> or <code>FAIL</code>   **/                         async event result_t PhotoADC.dataReady(uint16_t data)  {    char value = data >> 7;    if ((value & 0x7) <= 0x2)      //return call Sounder.start();      return post SounderStart();    else      //return call Sounder.stop();      return post SounderStop();    return FAIL;  }}