hplmsp430dmap.nc

tinyos2.0版本驱动

/*
 * Copyright (c) 2005-2006 Arch Rock Corporation
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
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 * - 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 A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
 * ARCHED ROCK OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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/*
 * "Copyright (c) 2000-2005 The Regents of the University of California.  
 * 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 following
 * two paragraphs and the author appear in all copies of this software.
 * 
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY
 * OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
 * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS."
 */

/**
 * @author Ben Greenstein <[e-mail]>
 * @author Jonathan Hui <[e-mail]>
 * @author Joe Polastre <[e-mail]>
 * @version $Revision: 1.1 $ $Date: 2008/06/12 14:02:25 $
 */

module HplMsp430DmaP {

  provides interface HplMsp430DmaControl as DmaControl;
  provides interface HplMsp430DmaInterrupt as Interrupt;
  uses interface PlatformInterrupt;
}

implementation {

  MSP430REG_NORACE( DMACTL0 );
  MSP430REG_NORACE( DMACTL1 );

  TOSH_SIGNAL( DACDMA_VECTOR ) {
    signal Interrupt.fired();
    call PlatformInterrupt.postAmble();
  }

  async command void DmaControl.setOnFetch(){
    DMACTL1 |= DMAONFETCH;
  }

  async command void DmaControl.clearOnFetch(){
    DMACTL1 &= ~DMAONFETCH;
  }

  async command void DmaControl.setRoundRobin(){
    DMACTL1 |= ROUNDROBIN;
  }
  async command void DmaControl.clearRoundRobin(){
    DMACTL1 &= ~ROUNDROBIN;
  }

  async command void DmaControl.setENNMI(){
    DMACTL1 |= ENNMI;
  }

  async command void DmaControl.clearENNMI(){
    DMACTL1 &= ~ENNMI;
  }

  async command void DmaControl.setState(dma_state_t s){
    DMACTL1 = *(int*)&s;
  }

  async command dma_state_t DmaControl.getState(){
    dma_state_t s;
    s = *(dma_state_t*)&DMACTL1;
    return s;
  }

  async command void DmaControl.reset(){
    DMACTL0 = 0;
    DMACTL1 = 0;
  }

}