softirqc.nc

tinyos-2.x.rar

/**
 *  Copyright (c) 2004-2005 Crossbow Technology, Inc.
 *  All rights reserved.
 *
 *  Permission to use, copy, modify, and distribute this software and its
 *  documentation for any purpose, without fee, and without written
 *  agreement is hereby granted, provided that the above copyright
 *  notice, the (updated) modification history and the author appear in
 *  all copies of this source code.
 *
 *  Permission is also granted to distribute this software under the
 *  standard BSD license as contained in the TinyOS distribution.
 *
 *  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 HOLDERS OR CONTRIBUTORS 
 *  BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, LOSS OF USE, DATA, 
 *  OR PROFITS) 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.
 *
 *  @author Martin Turon <[e-mail]>
 *
 *  $Id: SoftIrqC.nc,v 1.4 2006/12/12 18:23:28 vlahan Exp $
 */

/**
 * Software emulation of external interrupt pin.
 */
generic configuration SoftIrqC (uint8_t interval) {
    provides {
	interface Interrupt;         // interrupt interface to emulate
    }
    uses {
	interface GeneralIO;         // pin to poll for irq
    }
}
implementation
{
    components
	new SoftIrqP(interval), 
	new TimerMilliC() as IrqTimer;

    Interrupt = SoftIrqP;
    GeneralIO = SoftIrqP;
    
    SoftIrqP.IrqTimer -> IrqTimer;   // strap into an OSKI system timer
}