contiki/platform/jcreate/dev/ext-sensor.c

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/*
* Copyright (c) 2006, Swedish Institute of Computer Science.
* 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 : Adam Dunkels, Joakim Eriksson, Niclas Finne, Marcus Lund<EFBFBD>n,
* Jesper Karlsson
* Created : 2005-11-01
* Updated : $Date: 2010/08/25 19:34:42 $
* $Revision: 1.2 $
*/
#include "contiki.h"
#include "dev/ext-sensor.h"
#include "dev/sky-sensors.h"
/* SREF_0 is AVCC */
/* SREF_1 is Vref+ */
/* ADC0 == P6.0/A0 == port "under" logo */
/* ADC1 == P6.1/A1 == port "over" logo */
/* ADC2 == P6.2/A2, bottom expansion port */
/* ADC3 == P6.1/A3, bottom expansion port, End Of (ADC-)Sequence */
#define INPUT_CHANNEL ((1 << INCH_0) | (1 << INCH_1) | \
(1 << INCH_2) | (1 << INCH_3))
#define INPUT_REFERENCE SREF_0
#define EXT_MEM0 ADC12MEM0
#define EXT_MEM1 ADC12MEM1
#define EXT_MEM2 ADC12MEM2
#define EXT_MEM3 ADC12MEM3
const struct sensors_sensor ext_sensor;
/*---------------------------------------------------------------------------*/
static int
value(int type)
{
/* ADC0 corresponds to the port under the logo, ADC1 to the port
over the logo, ADC2 and ADC3 corresponds to port on the JCreate
bottom expansion port) */
switch(type) {
case ADC0:
return EXT_MEM0;
case ADC1:
return EXT_MEM1;
case ADC2:
return EXT_MEM2;
case ADC3:
return EXT_MEM3;
}
return 0;
}
/*---------------------------------------------------------------------------*/
static int
status(int type)
{
return sky_sensors_status(INPUT_CHANNEL, type);
}
/*---------------------------------------------------------------------------*/
static int
configure(int type, int c)
{
return sky_sensors_configure(INPUT_CHANNEL, INPUT_REFERENCE, type, c);
}
/*---------------------------------------------------------------------------*/
SENSORS_SENSOR(ext_sensor, "Ext", value, configure, status);