clkdiv.nc

tinyos2.0版本驱动

/* -*- mode:c++; indent-tabs-mode: nil -*-
 * Copyright (c) 2007, Technische Universitaet Berlin
 * 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 Technische Universitaet Berlin 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 COPYRIGHT
 * OWNER OR 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.
 *
 * $Revision: 1.1 $
 * $Date: 2007/03/10 22:01:58 $
 */

/**
 * This radio provides a clock divider output that can be used to drive 
 * a high frequency clock of an micro processor. 
 * @author: Andreas Koepke <[e-mail]>
 */

interface ClkDiv {
    /**
     * this event signals that the clkdiv delivers a stable signal
     */
    async event void startDone();

    /**
     * this event signals that the clkdiv will stop to deliver a stable signal
     */
    async event void stopping();

    /**
     * From now on, never switch the clkdiv off -- consumes more energy!
     * This command may take a while until it takes effect.
     */
    // command void alwaysOnMode();

    /**
     * Return to default mode: clkdiv is switched on when the radio demands
     * it, other components will get the start/stop events and hence know what
     * is going on now.
     */
    // command void sporadicMode();
}