osd-contiki/platform/z1/dev/potentiometer-sensor.c

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/*
* Copyright (c) 2011 Zolertia(TM) is a trademark by Advancare,SL
* 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 Institute 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 INSTITUTE 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 INSTITUTE 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.
*
*
* -----------------------------------------------------------------
*
* Author : Enric M. Calvo (based on work by A. Dunkels, J. Eriksson, N. Finne)
* Created : 2011-02-22
* $Revision: 1.0 $
*/
#include "dev/potentiometer-sensor.h"
#include "dev/sky-sensors.h"
#include "contiki.h"
/* Configure ADC12_2 to sample channel 11 (voltage) and use */
/* the Vref+ as reference (SREF_1) since it is a stable reference */
#define INPUT_CHANNEL (1 << INCH_4)
#define INPUT_REFERENCE SREF_0
#define POTENTIOMETER_MEM ADC12MEM4
const struct sensors_sensor potentiometer_sensor;
/*---------------------------------------------------------------------------*/
static int
value(int type)
{
return POTENTIOMETER_MEM;
}
/*---------------------------------------------------------------------------*/
static int
configure(int type, int c)
{
return sky_sensors_configure(INPUT_CHANNEL, INPUT_REFERENCE, type, c);
}
/*---------------------------------------------------------------------------*/
static int
status(int type)
{
return sky_sensors_status(INPUT_CHANNEL, type);
}
/*---------------------------------------------------------------------------*/
SENSORS_SENSOR(potentiometer_sensor, POTENTIOMETER_SENSOR, value, configure, status);