splitcontrolpowermanagerc.nc

tinyos-2.x.rar

/*
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 * All rights reserved.
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 * two paragraphs and the author appear in all copies of this software.
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 * IN NO EVENT SHALL WASHINGTON UNIVERSITY IN ST. LOUIS BE LIABLE TO ANY PARTY 
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 * WASHINGTON UNIVERSITY IN ST. LOUIS SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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/*
 * - Revision -------------------------------------------------------------
 * $Revision: 1.5 $
 * $Date: 2007/02/04 19:56:03 $ 
 * ======================================================================== 
 */
 
/**
 * Please refer to TEP 115 for more information about this component and its
 * intended use.<br><br>
 *
 * This component povides a power management policy for managing the power
 * states of non-virtualized devices.  Non-virtualized devices are shared
 * using a parameterized Resource interface, and are powered down according
 * to some policy whenever there are no more pending requests to that Resource.
 * The policy implemented by this component is to delay the power down of a
 * device by some contant factor.  Such a policy is useful whenever a device
 * has a long wake-up latency.  The cost of waiting for the device to power
 * up can be avoided if the device is requested again before some predetermined
 * amount of time.<br><br>
 *
 * Powerdown of the device is done through the <code>SplitControl</code>
 * interface, so this component can only be used with those devices that
 * provide that interface.<br><br>
 *
 * For devices providing either the <code>AsyncStdControl</code> or
 * <code>StdControl</code> interfaces, please use either the
 * <code>AsyncStdControlPowerManagerC</code> component or the
 * <code>StdControlPowerManagerC</code> component respectively.
 * 
 * @author Kevin Klues ([e-mail])
 */
 
generic configuration SplitControlPowerManagerC() {
  uses {
    interface SplitControl;

    interface PowerDownCleanup;
    interface ResourceDefaultOwner;
    interface ArbiterInfo;
  }
}
implementation {
  components  new PowerManagerP() as PowerManager;
 
  PowerManager.SplitControl = SplitControl;

  PowerManager.PowerDownCleanup = PowerDownCleanup;
 
  PowerManager.ResourceDefaultOwner = ResourceDefaultOwner;
  PowerManager.ArbiterInfo = ArbiterInfo;
}