150 lines
4.0 KiB
C
150 lines
4.0 KiB
C
/**
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* \addtogroup mbxxx-platform
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*
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* @{
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*/
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/*
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* Copyright (c) 2010, STMicroelectronics.
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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
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This file is part of the Contiki OS
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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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* Contact sensor.
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* \author
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* Stefano Pascali <stefano.pascali@st.com>
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* Marco Grella <marco.grella@st.com>
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*/
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/*---------------------------------------------------------------------------*/
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#include PLATFORM_HEADER
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#include BOARD_HEADER
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#include "hal/error.h"
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#include "hal/hal.h"
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#include "dev/leds.h"
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#include "dev/contact-sensor.h"
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void halIrqAIsr(void);
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static void
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init(void)
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{
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//PC0 configuration: push-pull output
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halGpioConfig(PORTC_PIN(0), GPIOCFG_OUT);
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GPIO_PCSET |= PC0;
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//PB0 (IRQA)configuration: input Pull Down.
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//halGpioConfig(PORTB_PIN(0), GPIOCFG_IN_PUD);
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//GPIO_PBOUT &= ~PB0;
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//PB0 (IRQA)configuration: input Pull Down.
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halGpioConfig(PORTB_PIN(0), GPIOCFG_IN);
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//configure IRQA mode: Rising and Falling edge triggered, digital filter enabled
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// GPIO_INTCFGA =0x00000160;
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GPIO_INTCFGA = GPIO_INTCFGA_RESET;
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GPIO_INTCFGA|=GPIO_INTFILT;
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GPIO_INTCFGA|=(0x03 <<GPIO_INTMOD_BIT);
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halIrqAIsr();
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//Enable IRQA interrupt
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INT_CFGSET = INT_IRQA;
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// printf("\r\n[Contact Sensor] Initialization Done\r\n");
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}/* end switch_init */
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/* :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: */
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/* :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: */
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void halIrqAIsr(void)
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{
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//Clear Interrupt Pending Bit
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INT_GPIOFLAG = INT_IRQAFLAG;
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if ((GPIO_PBIN & (1)) == 0){
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leds_on(LEDS_RED);
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leds_off(LEDS_GREEN);
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}else{
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leds_on(LEDS_GREEN);
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leds_off(LEDS_RED);
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// switch_closed=TRUE;
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}
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}
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/*---------------------------------------------------------------------------*/
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static int
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value(int type)
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{
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//printf("[Contact Sensor] Value=%d\r\n", GPIO_PBIN & (1));
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return (GPIO_PBIN & (1));
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}
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/*---------------------------------------------------------------------------*/
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static int
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configure(int type, int value)
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{
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switch(type){
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case SENSORS_HW_INIT:
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init();
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return 1;
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case SENSORS_ACTIVE:
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return 1;
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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static int
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status(int type)
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{
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switch(type) {
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case SENSORS_READY:
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return 1;
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}
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return 0;
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}
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/*---------------------------------------------------------------------------*/
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SENSORS_SENSOR(contact_sensor, CONTACT_SENSOR,
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value, configure, status);
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/** @} */
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