Initial files of the MICAz port.
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platform/micaz/dev/sensors/mts300.c
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platform/micaz/dev/sensors/mts300.c
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/*
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* Copyright (c) 2009, University of Colombo School of Computing
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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 drivers implementation for MTS300 sensor board.
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* \author
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* Kasun Hewage <kasun.ch@gmail.com>
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*/
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#include "mts300.h"
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/*---------------------------------------------------------------------------*/
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void
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sounder_on()
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{
SOUNDER_DDR |= SOUNDER_MASK;
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SOUNDER_PORT &= ~SOUNDER_MASK;
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SOUNDER_PORT |= SOUNDER_MASK;
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}
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/*---------------------------------------------------------------------------*/
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void
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sounder_off()
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{
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SOUNDER_PORT &= ~(SOUNDER_MASK);
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SOUNDER_DDR &= ~(SOUNDER_MASK);
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}
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/*---------------------------------------------------------------------------*/
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void
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adc_init()
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{
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ADMUX = 0;
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/* AVCC with external capacitor at AREF pin. */
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//ADMUX |= _BV(REFS0)
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/* Disable ADC interrupts. */
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ADCSRA &= ~( _BV(ADIE) | _BV(ADIF) );
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/* Set ADC prescaler to 64 and clear interrupt flag. */
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ADCSRA |= _BV(ADPS2) | _BV(ADPS1) | _BV(ADIE);
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}
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/*---------------------------------------------------------------------------*/
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/* Poll based approach. The interrupt based adc is currently not used.
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The ADC result is right adjusted. First 8 bits(from left) are in ADCL and
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other two bits are in ADCH. See Atmega128 datasheet page 228. */
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uint16_t
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get_adc(int channel)
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{
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uint16_t reading;
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ADMUX |= (channel & 0x1F);
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/* Disable ADC interrupts. */
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ADCSRA &= ~_BV(ADIE);
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/* Clear previous interrupts. */
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ADCSRA |= _BV(ADIF);
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/* Enable ADC and start conversion. */
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ADCSRA |= _BV(ADEN) | _BV(ADSC);
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/* Wait until conversion is completed. */
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while ( ADCSRA & _BV(ADSC) );
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/* Get first 8 bits. */
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reading = ADCL;
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/* Get last two bits. */
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reading |= (ADCH & 3) << 8;
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/* Disable ADC. */
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ADCSRA &= ~_BV(ADEN);
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return reading;
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}
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/*---------------------------------------------------------------------------*/
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uint16_t
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get_light()
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{
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uint16_t reading;
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/* Enable light sensor. */
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LIGHT_PORT |= LIGHT_PIN_MASK;
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LIGHT_PORT_DDR |= LIGHT_PIN_MASK;
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/* Disable temperature sensor. */
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TEMP_PORT_DDR &= ~TEMP_PIN_MASK;
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TEMP_PORT &= ~TEMP_PIN_MASK;
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/* Read ADC. */
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reading = get_adc(LIGHT_ADC_CHANNEL);
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/* Disable light sensor. */
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LIGHT_PORT &= ~LIGHT_PIN_MASK;
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LIGHT_PORT_DDR &= ~LIGHT_PIN_MASK;
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return reading;
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}
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/*---------------------------------------------------------------------------*/
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uint16_t
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get_temp()
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{
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uint16_t reading;
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/* Disable light sensor. */
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LIGHT_PORT &= ~LIGHT_PIN_MASK;
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LIGHT_PORT_DDR &= ~LIGHT_PIN_MASK;
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/* Enable temperature sensor. */
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TEMP_PORT_DDR |= TEMP_PIN_MASK;
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TEMP_PORT |= TEMP_PIN_MASK;
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/* Read ADC. */
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reading = get_adc(TEMP_ADC_CHANNEL);
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/* Disable temperature sensor. */
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TEMP_PORT_DDR &= ~TEMP_PIN_MASK;
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TEMP_PORT &= ~TEMP_PIN_MASK;
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return reading;
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}
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/*---------------------------------------------------------------------------*/
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uint16_t
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get_accx()
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{
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uint16_t reading;
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/* Enable accelerometer. */
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ACCEL_PORT_DDR |= ACCEL_PIN_MASK;
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ACCEL_PORT |= ACCEL_PIN_MASK;
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/* Read ADC. */
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reading = get_adc(ACCELX_ADC_CHANNEL);
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/* Enable accelerometer. */
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ACCEL_PORT_DDR &= ~ACCEL_PIN_MASK;
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ACCEL_PORT &= ~ACCEL_PIN_MASK;
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return reading;
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}
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/*---------------------------------------------------------------------------*/
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uint16_t
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get_accy()
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{
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uint16_t reading;
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/* Enable accelerometer. */
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ACCEL_PORT_DDR |= ACCEL_PIN_MASK;
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ACCEL_PORT |= ACCEL_PIN_MASK;
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/* Read ADC. */
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reading = get_adc(ACCELY_ADC_CHANNEL);
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/* Enable accelerometer. */
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ACCEL_PORT_DDR &= ~ACCEL_PIN_MASK;
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ACCEL_PORT &= ~ACCEL_PIN_MASK;
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return reading;
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}
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/*---------------------------------------------------------------------------*/
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uint16_t
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get_magx()
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{
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uint16_t reading;
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/* Enable magnetometer. */
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MAGNET_PORT_DDR |= MAGNET_PIN_MASK;
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MAGNET_PORT |= MAGNET_PIN_MASK;
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/* Read ADC. */
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reading = get_adc(MAGNETX_ADC_CHANNEL);
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/* Enable magnetometer. */
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MAGNET_PORT_DDR &= ~MAGNET_PIN_MASK;
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MAGNET_PORT &= ~MAGNET_PIN_MASK;
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return reading;
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}
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/*---------------------------------------------------------------------------*/
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uint16_t
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get_magy()
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{
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uint16_t reading;
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/* Enable magnetometer. */
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MAGNET_PORT_DDR |= MAGNET_PIN_MASK;
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MAGNET_PORT |= MAGNET_PIN_MASK;
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/* Read ADC. */
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reading = get_adc(MAGNETY_ADC_CHANNEL);
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/* Enable magnetometer. */
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MAGNET_PORT_DDR &= ~MAGNET_PIN_MASK;
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MAGNET_PORT &= ~MAGNET_PIN_MASK;
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return reading;
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}
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/*---------------------------------------------------------------------------*/
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uint16_t
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get_mic()
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{
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uint16_t reading;
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/* Enable mic. */
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MIC_PORT_DDR |= MIC_PIN_MASK;
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MIC_PORT |= MIC_PIN_MASK;
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/* Read ADC. */
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reading = get_adc(MIC_ADC_CHANNEL);
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/* Enable mic. */
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MIC_PORT_DDR &= ~MIC_PIN_MASK;
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MIC_PORT &= ~MIC_PIN_MASK;
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return reading;
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}
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/*---------------------------------------------------------------------------*/
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112
platform/micaz/dev/sensors/mts300.h
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112
platform/micaz/dev/sensors/mts300.h
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@ -0,0 +1,112 @@
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/*
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* Copyright (c) 2009, University of Colombo School of Computing
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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 drivers header file for MTS300 sensor board.
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* \author
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* Kasun Hewage <kasun.ch@gmail.com>
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*/
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#ifndef __MTS300_H__
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#define __MTS300_H__
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#include <avr/io.h>
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#include "contiki-conf.h"
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#define SOUNDER_PORT PORTC
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#define SOUNDER_MASK _BV(2)
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#define SOUNDER_DDR DDRC
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/* MTS300CA and MTS310CA, the light sensor power is controlled
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* by setting signal INT1(PORTE pin 5).
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* Both light and thermistor use the same ADC channel.
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*/
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#define LIGHT_PORT_DDR DDRE
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#define LIGHT_PORT PORTE
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#define LIGHT_PIN_MASK _BV(5)
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#define LIGHT_ADC_CHANNEL 1
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/* MTS300CA and MTS310CA, the thermistor power is controlled
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* by setting signal INT2(PORTE pin 6).
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* Both light and thermistor use the same ADC channel.
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*/
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#define TEMP_PORT_DDR DDRE
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#define TEMP_PORT PORTE
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#define TEMP_PIN_MASK _BV(6)
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#define TEMP_ADC_CHANNEL 1
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/* Power is controlled to the accelerometer by setting signal
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* PW4(PORTC pin 4), and the analog data is sampled on ADC3 and ADC4.
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*/
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#define ACCEL_PORT_DDR DDRC
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#define ACCEL_PORT PORTC
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#define ACCEL_PIN_MASK _BV(4)
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#define ACCELX_ADC_CHANNEL 3
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#define ACCELY_ADC_CHANNEL 4
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/* Power is controlled to the magnetometer by setting signal
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* PW5(PORTC pin 5), and the analog data is sampled on ADC5 and ADC6.
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*/
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#define MAGNET_PORT_DDR DDRC
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#define MAGNET_PORT PORTC
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#define MAGNET_PIN_MASK _BV(5)
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#define MAGNETX_ADC_CHANNEL 5
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#define MAGNETY_ADC_CHANNEL 6
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#define MIC_PORT_DDR DDRC
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#define MIC_PORT PORTC
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#define MIC_PIN_MASK _BV(3)
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#define MIC_ADC_CHANNEL 2
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void sounder_on();
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void sounder_off();
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uint16_t get_light();
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uint16_t get_temp();
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uint16_t get_accx();
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uint16_t get_accy();
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uint16_t get_magx();
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uint16_t get_magy();
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uint16_t get_mic();
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void mts300_init();
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#endif /* __MTS300_H__ */
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