Contiki-NG
battery-sensor.c
1/*
2 * Copyright (c) 2006, Swedish Institute of Computer Science.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the Institute nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 *
30 * -----------------------------------------------------------------
31 *
32 * Author : Adam Dunkels, Joakim Eriksson, Niclas Finne
33 * Created : 2005-11-01
34 * Updated : $Date: 2010/08/25 19:30:52 $
35 * $Revision: 1.11 $
36 */
37
38#include "contiki.h"
39#include "dev/battery-sensor.h"
40#include "dev/sky-sensors.h"
41
42/* Configure ADC12_2 to sample channel 11 (voltage) and use */
43/* the Vref+ as reference (SREF_1) since it is a stable reference */
44#define INPUT_CHANNEL (1 << INCH_11)
45#define INPUT_REFERENCE SREF_1
46#define BATTERY_MEM ADC12MEM11
47
48const struct sensors_sensor battery_sensor;
49/*---------------------------------------------------------------------------*/
50static int
51value(int type)
52{
53 return BATTERY_MEM;
54}
55/*---------------------------------------------------------------------------*/
56static int
57configure(int type, int c)
58{
59 return sky_sensors_configure(INPUT_CHANNEL, INPUT_REFERENCE, type, c);
60}
61/*---------------------------------------------------------------------------*/
62static int
63status(int type)
64{
65 return sky_sensors_status(INPUT_CHANNEL, type);
66}
67/*---------------------------------------------------------------------------*/
68SENSORS_SENSOR(battery_sensor, BATTERY_SENSOR, value, configure, status);