106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
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/*
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* Copyright (c) 2010, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*
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* -----------------------------------------------------------------
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*
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* \file
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* Device simple driver for generic relay in phidget port of Zolertia Z1
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* \author
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* Antonio Lignan, Zolertia <alinan@zolertia.com>
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*
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*/
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#include "contiki.h"
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#include "relay-phidget.h"
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static uint8_t controlPin;
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enum PHIDGET_RELAY_STATUSTYPES {
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/* must be a bit and not more, not using 0x00. */
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INITED = 0x01,
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RUNNING = 0x02,
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STOPPED = 0x04,
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};
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static enum PHIDGET_RELAY_STATUSTYPES _RELAY_STATUS = 0x00;
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/*---------------------------------------------------------------------------*/
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void
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relay_enable(uint8_t pin)
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{
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if(!(_RELAY_STATUS & INITED)) {
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_RELAY_STATUS |= INITED;
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/* Selects the pin to be configure as the control pin of the relay module */
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controlPin = (1 << pin);
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/* Configures the control pin */
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P6SEL &= ~controlPin;
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P6DIR |= controlPin;
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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relay_on()
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{
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if((_RELAY_STATUS & INITED)) {
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P6OUT |= controlPin;
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}
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}
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/*---------------------------------------------------------------------------*/
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void
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relay_off()
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{
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if((_RELAY_STATUS & INITED)) {
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P6OUT &= ~controlPin;
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}
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}
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/*---------------------------------------------------------------------------*/
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int8_t
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relay_toggle()
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{
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if((_RELAY_STATUS & INITED)) {
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P6OUT ^= controlPin;
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if((P6OUT & controlPin)) {
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return 1;
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}
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return 0;
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}
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return -1;
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}
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/*---------------------------------------------------------------------------*/
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