nes-proj/arch/platform/sky/dev/light-sensor.c

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/*
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* Copyright (c) 2005-2010, Swedish Institute of Computer Science
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* 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.
*
* This file is part of the Contiki operating system.
*
*/
#include "contiki.h"
#include "lib/sensors.h"
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#include "dev/sky-sensors.h"
#include "dev/light-sensor.h"
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/* Photodiode 1 (P64) on INCH_4 */
/* Photodiode 2 (P65) on INCH_5 */
#define INPUT_CHANNEL ((1 << INCH_4) | (1 << INCH_5))
#define INPUT_REFERENCE SREF_0
#define PHOTOSYNTHETIC_MEM ADC12MEM4
#define TOTAL_SOLAR_MEM ADC12MEM5
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const struct sensors_sensor light_sensor;
/*---------------------------------------------------------------------------*/
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static int
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value(int type)
{
switch(type) {
/* Photosynthetically Active Radiation. */
case LIGHT_SENSOR_PHOTOSYNTHETIC:
return PHOTOSYNTHETIC_MEM;
/* Total Solar Radiation. */
case LIGHT_SENSOR_TOTAL_SOLAR:
return TOTAL_SOLAR_MEM;
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}
return 0;
}
/*---------------------------------------------------------------------------*/
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static int
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status(int type)
{
return sky_sensors_status(INPUT_CHANNEL, type);
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}
/*---------------------------------------------------------------------------*/
static int
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configure(int type, int c)
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{
return sky_sensors_configure(INPUT_CHANNEL, INPUT_REFERENCE, type, c);
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}
/*---------------------------------------------------------------------------*/
SENSORS_SENSOR(light_sensor, "Light", value, configure, status);