halpxa27xsoftcapturec.nc

tinyos2.0版本驱动

// $Id: HalPXA27xSoftCaptureC.nc,v 1.5 2008/06/11 00:42:13 razvanm Exp $
/*
 * Copyright (c) 2005 Arch Rock Corporation 
 * All rights reserved. 
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 * modification, are permitted provided that the following conditions are
 * met:
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 * 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 Arch Rock 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
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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 */

/**
 * Emulates GPIO capture functionality using HalPXA27xGpioInterrupt and the 
 * standard 32khz counter. Provides a method to capture on BOTH edges of
 * a GPIO transition
 *
 * @author Phil Buonadonna
 */
generic configuration HalPXA27xSoftCaptureC() 
{
  provides interface HalPXA27xGpioCapture;
  uses interface HalPXA27xGpioInterrupt;
}

implementation
{
  components new HalPXa27xSoftCaptureP();
  components Counter32khzC;
  
  HalPXA27xGpioCapture = HalPXA27xSoftCaptureP;
  HalPXA27xGpioInterrupt = HalPXA27xSoftCaptureP;

  HalPXA27xSoftCaptureP.Counter32khz32 -> Counter32khzC.Counter32khz32;
}