Add CC2538 tmp sensor driver

This commit is contained in:
George Oikonomou 2015-02-11 17:54:25 +01:00 committed by George Oikonomou
parent 40716ab515
commit f474514ee5
2 changed files with 149 additions and 0 deletions

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/*
* Copyright (c) 2015, Zolertia - http://www.zolertia.com
* Copyright (c) 2015, University of Bristol - http://www.bristol.ac.uk
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder 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
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*---------------------------------------------------------------------------*/
/**
* \addtogroup cc2538-temp-sensor
* @{
*
* \file
* Driver for the CC2538 On-Chip temperature sensor
*/
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "lib/sensors.h"
#include "dev/temp-sensor.h"
#include "dev/adc.h"
#include "dev/cc2538-sensors.h"
#include <stdint.h>
/*---------------------------------------------------------------------------*/
static int
value(int type)
{
int raw = adc_get(SOC_ADC_ADCCON_CH_TEMP, SOC_ADC_ADCCON_REF_INT,
SOC_ADC_ADCCON_DIV_512);
if(type == CC2538_SENSORS_VALUE_TYPE_RAW) {
return raw;
} else if(type == CC2538_SENSORS_VALUE_TYPE_CONVERTED) {
return 25000 + ((raw >> 4) - 1422) * 10000 / 42;
}
return CC2538_SENSORS_ERROR;
}
/*---------------------------------------------------------------------------*/
static int
configure(int type, int value)
{
return 0;
}
/*---------------------------------------------------------------------------*/
static int
status(int type)
{
return 1;
}
/*---------------------------------------------------------------------------*/
SENSORS_SENSOR(temp_sensor, TEMP_SENSOR, value, configure, status);
/*---------------------------------------------------------------------------*/
/** @} */

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/*
* Copyright (c) 2015, Zolertia - http://www.zolertia.com
* Copyright (c) 2015, University of Bristol - http://www.bristol.ac.uk
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder 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
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*---------------------------------------------------------------------------*/
/**
* \addtogroup cc2538-sensors
* @{
*
* \defgroup cc2538-temp-sensor CC2538 on-chip temperature Sensor
*
* Driver for the CC2538 on-chip temperature sensor
*
* This driver can return the raw as well as the converted value of the sensor
* reading. This is controlled by the type argument of the sensor driver's
* value() function. The choices for the type argument are:
* - CC2538_SENSORS_VALUE_TYPE_RAW (value() returns the raw reading)
* - CC2538_SENSORS_VALUE_TYPE_CONVERTED (value() returns degrees mC)
* @{
*
* \file
* Header file for the CC2538 on-chip temperature Sensor Driver
*/
/*---------------------------------------------------------------------------*/
#ifndef TEMP_SENSOR_H_
#define TEMP_SENSOR_H_
/*---------------------------------------------------------------------------*/
#include "lib/sensors.h"
/*---------------------------------------------------------------------------*/
/**
* \name temperature sensor
* @{
*/
#define TEMP_SENSOR "On-Chip Temperature"
/** @} */
/*---------------------------------------------------------------------------*/
extern const struct sensors_sensor temp_sensor;
/*---------------------------------------------------------------------------*/
#endif /* TEMP_SENSOR_H_ */
/*---------------------------------------------------------------------------*/
/**
* @}
* @}
*/