/*									
 *  MOIST.c
 *
 *
 *	Author:		Waylon Brunette
 *	Date:		created 10/26/01
 *
 * 	Modified from PHOTO.c
 *
 *=================================================================
 * Header from PHOTO.c
 *=================================================================									
 * PHOTO.c - TOS abstraction of asynchronous digital photo sensor
 *
 * "Copyright (c) 1000 and 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 and the following
 * two paragraphs 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."
 *
 * Authors:		Jason Hill
 *  modified: DEC 10/4/2000 function commented
 *
 */


#include "tos.h"
#include "MOIST.h"

#define MOIST_PORT 3
#define PWR_ON_WAIT_TIME 9000000 // used to be twice as much

#define TOS_FRAME_TYPE MOIST_frame
TOS_FRAME_BEGIN(MOIST_frame) {

}
TOS_FRAME_END(MOIST_frame);

char TOS_COMMAND(MOIST_GET_DATA)(){
  return TOS_CALL_COMMAND(SUB_ADC_GET_DATA)(MOIST_PORT);
}

TOS_TASK(MOIST_PWR_ON_WAIT){
  unsigned long i;

  for(i = 0; i < PWR_ON_WAIT_TIME; i++)
    {

    }
  
  TOS_SIGNAL_EVENT(MOIST_SENS_READY)();
}

char TOS_COMMAND(MOIST_INIT)(){
  //ADC 3
  cbi(PORTA, 3);   // set pin to read
  cbi(DDRA, 3);    // set port to be input
  return TOS_CALL_COMMAND(SUB_ADC_INIT)();
}

char TOS_COMMAND(MOIST_PWR_ON)(){
  //PW4
  sbi(DDRD, 6);    // make pin an output
  sbi(PORTD, 6);   // make pin high
  
  // wait until reading stabilizes on the moisture sensor
  TOS_POST_TASK(MOIST_PWR_ON_WAIT);

  return 1;
}

char TOS_COMMAND(MOIST_PWR_OFF)(){
  printf("THIS SHOULD TURN LOW");
  cbi(PORTD, 6);   // make pin low
  return 1;
}