testadcsinglec.nc

tinyos-2.x.rar

/* 
 * Copyright (c) 2007, Technische Universitaet Berlin
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 *   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
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 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 *
 * - Revision -------------------------------------------------------------
 * $Revision: 1.4 $
 * $Date: 2008/09/29 15:51:23 $
 * @author: Jan Hauer <[e-mail]>
 * ========================================================================
 */

/**
 * Testing SingleChannel HAL interface of ADC12 on msp430. 
 *
 * Author: Jan Hauer
 **/
generic module TestAdcSingleC(  
                          uint8_t inch,            // input channel 
                          uint8_t sref,            // reference voltage 
                          uint8_t ref2_5v,         // reference voltage level 
                          uint8_t adc12ssel,       // clock source sample-hold-time 
                          uint8_t adc12div,        // clock divider sample-hold-time 
                          uint8_t sht,             // sample-hold-time
                          uint8_t sampcon_ssel,    // clock source sampcon signal 
                          uint8_t sampcon_id       // clock divider sampcon 
) @safe()
{
  uses {
    interface Boot;
    interface Resource;
    interface Msp430Adc12SingleChannel as SingleChannel;
  }
  provides {
    interface AdcConfigure<const msp430adc12_channel_config_t*>;
    interface Notify<bool>;
  }
}
implementation
{
#define BUFFER_SIZE 100
#define NUM_REPETITIONS 5
  const msp430adc12_channel_config_t config = {inch, sref, ref2_5v, adc12ssel, adc12div, sht, sampcon_ssel, sampcon_id};
  norace uint8_t state;
  norace uint8_t count = 0;
  uint16_t buffer[BUFFER_SIZE];
  void task getData();
  enum {
    SINGLE_DATA,
    SINGLE_DATA_REPEAT,
    MULTIPLE_DATA,
    MULTIPLE_DATA_REPEAT,
  };


  void task signalFailure()
  {
    signal Notify.notify(FALSE);
  }

  void assertData(uint16_t *data, uint16_t num)
  {
    uint16_t i;
    for (i=0; i<num; i++)
      if (!data[i] || data[i] >= 0xFFF)
        post signalFailure();
  }

  event void Boot.booted()
  {
    state = SINGLE_DATA;
    post getData();
  }

  async command const msp430adc12_channel_config_t* AdcConfigure.getConfiguration()
  {
    return &config;
  }

  void task getData()
  {
    call Resource.request();
  }
  
  event void Resource.granted()
  {
    count = NUM_REPETITIONS;
    switch(state)
    {
      case SINGLE_DATA: 
              if (call SingleChannel.configureSingle(&config) == SUCCESS)
                call SingleChannel.getData();
              break;
      case SINGLE_DATA_REPEAT: 
              if (call SingleChannel.configureSingleRepeat(&config, 10) == SUCCESS)
                call SingleChannel.getData();
              break;
      case MULTIPLE_DATA: 
              if (call SingleChannel.configureMultiple(&config, buffer, BUFFER_SIZE, 10) == SUCCESS)
                call SingleChannel.getData();
              break;
      case MULTIPLE_DATA_REPEAT: 
              if (call SingleChannel.configureMultipleRepeat(&config, buffer, 16, 10) == SUCCESS)
                call SingleChannel.getData();
              break;
      default: call Resource.release();
              signal Notify.notify(TRUE);
              break;
    }
  }

  async event error_t SingleChannel.singleDataReady(uint16_t data)
  { 
    assertData(&data, 1);
    switch(state)
    {
      case SINGLE_DATA: 
              if (count){
                count--;
                call SingleChannel.getData();
                return SUCCESS;
              }
              break;
      case SINGLE_DATA_REPEAT:
              if (count){
                count--;
                return SUCCESS;
              }
              break;
    }
    call Resource.release();
    state++;
    post getData();
    return FAIL;
  }
  
    
  async event uint16_t* SingleChannel.multipleDataReady(uint16_t *buf, uint16_t length)
  {
    assertData(buf, length);
    switch(state)
    {
      case MULTIPLE_DATA: 
              if (count){
                count--;
                call SingleChannel.getData();
                return 0;
              }
              break;
      case MULTIPLE_DATA_REPEAT:
              if (count){
                count--;
                return buf;
              }
    }   
    call Resource.release();
    state++;
    post getData();
    return 0;
  }

  command error_t Notify.enable(){}
  command error_t Notify.disable(){}
}