adc.comp

无线传感器网络操作系统源代码

/*									tab:4
 *
 *
 * "Copyright (c) 2000 and 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 and the following
 * two paragraphs 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."
 *
 * Authors:		Jason Hill
 *
 *
 * This module is a hardware abstraction.  It exposes the functionality of the ADC
 * to TinyOS applications.  It accepts a INIT command as well as a GET_DATA command.
 * the GET_DATA command take a port number as an argument.  If the ADC is not currently 
 * in use, it will begin a reading of the specified port. If the ADC is busy, it will 
 * return failure.
 * 
 * When a read completes, it fires the DATA_READY event for the port that was requested.
 * Each data port has a separate event associated with it.
 *
 *
 *
 *
 */

TOS_MODULE ADC;	


ACCEPTS{
	char ADC_INIT(void);
	char ADC_GET_DATA(char port);
};

SIGNALS{
	char ADC_DATA_READY_PORT_0(short data);
	char ADC_DATA_READY_PORT_1(short data);
	char ADC_DATA_READY_PORT_2(short data);
	char ADC_DATA_READY_PORT_3(short data);
	char ADC_DATA_READY_PORT_4(short data);
	char ADC_DATA_READY_PORT_5(short data);
	char ADC_DATA_READY_PORT_6(short data);
	char ADC_DATA_READY_PORT_7(short data);
};