[Tinyos-2-commits] CVS: tinyos-2.x/tos/interfaces LowPowerListening.nc, NONE, 1.1

[dmm]

Update of /cvsroot/tinyos/tinyos-2.x/tos/interfaces
In directory sc8-pr-cvs10.sourceforge.net:/tmp/cvs-serv18918

Added Files:
	LowPowerListening.nc 
Log Message:
Update of the default CC2420 to the low power listening stack.  The "acknowledgement" LPL version is the default, while the continuous-modulation "no-acknowledgement" LPL layer is still considered experimental.  RSSI can be directly read from the radio through CC2420ConrolC.

--- NEW FILE: LowPowerListening.nc ---
/*
 * Copyright (c) 2005-2006 Rincon Research Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * - Redistributions of source code must retain the above copyright
 *   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 Rincon Research 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 A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
 * RINCON RESEARCH OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE
 */
 
/**
 * Low Power Listening interface
 *
 * @author Jonathan Hui
 * @author David Moss
 */
 
#include "message.h"
 
interface LowPowerListening {

  /**
   * Set this this node's radio sleep interval, in milliseconds.
   * Once every interval, the node will sleep and perform an Rx check 
   * on the radio.  Setting the sleep interval to 0 will keep the radio
   * always on.
   *
   * This is the equivalent of setting the local duty cycle rate.
   *
   * @param sleepIntervalMs the length of this node's Rx check interval, in [ms]
   */
  command void setLocalSleepInterval(uint16_t sleepIntervalMs);
  
  /**
   * @return the local node's sleep interval, in [ms]
   */
  command uint16_t getLocalSleepInterval();
  
  /**
   * Set this node's radio duty cycle rate, in units of [percentage*100].
   * For example, to get a 0.05% duty cycle,
   * <code>
   *   call LowPowerListening.setDutyCycle(5);
   * </code>
   *
   * For a 100% duty cycle (always on),
   * <code>
   *   call LowPowerListening.setDutyCycle(10000);
   * </code>
   *
   * This is the equivalent of setting the local sleep interval explicitly.
   * 
   * @param dutyCycle The duty cycle percentage, in units of [percentage*100]
   */
  command void setLocalDutyCycle(uint16_t dutyCycle);
  
  /**
   * @return this node's radio duty cycle rate, in units of [percentage*100]
   */
  command uint16_t getLocalDutyCycle();
  
  
  /**
   * Configure this outgoing message so it can be transmitted to a neighbor mote
   * with the specified Rx sleep interval.
   * @param msg Pointer to the message that will be sent
   * @param sleepInterval The receiving node's sleep interval, in [ms]
   */
  command void setRxSleepInterval(message_t *msg, uint16_t sleepIntervalMs);
  
  /**
   * @return the destination node's sleep interval configured in this message
   */
  command uint16_t getRxSleepInterval(message_t *msg);
  
  /**
   * Configure this outgoing message so it can be transmitted to a neighbor mote
   * with the specified Rx duty cycle rate.
   * Duty cycle is in units of [percentage*100], i.e. 0.25% duty cycle = 25.
   * 
   * @param msg Pointer to the message that will be sent
   * @param dutyCycle The duty cycle of the receiving mote, in units of 
   *     [percentage*100]
   */
  command void setRxDutyCycle(message_t *msg, uint16_t dutyCycle);
  
  /**
   * @return the destination node's duty cycle configured in this message
   *     in units of [percentage*100]
   */
  command uint16_t getRxDutyCycle(message_t *msg);
  
  /**
   * Convert a duty cycle, in units of [percentage*100], to
   * the sleep interval of the mote in milliseconds
   * @param dutyCycle The duty cycle in units of [percentage*100]
   * @return The equivalent sleep interval, in units of [ms]
   */
  command uint16_t dutyCycleToSleepInterval(uint16_t dutyCycle);
  
  /**
   * Convert a sleep interval, in units of [ms], to a duty cycle
   * in units of [percentage*100]
   * @param sleepInterval The sleep interval in units of [ms]
   * @return The duty cycle in units of [percentage*100]
   */
  command uint16_t sleepIntervalToDutyCycle(uint16_t sleepInterval);
  
}