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 
48 const struct sensors_sensor battery_sensor;
49 /*---------------------------------------------------------------------------*/
50 static int
51 value(int type)
52 {
53  return BATTERY_MEM;
54 }
55 /*---------------------------------------------------------------------------*/
56 static int
57 configure(int type, int c)
58 {
59  return sky_sensors_configure(INPUT_CHANNEL, INPUT_REFERENCE, type, c);
60 }
61 /*---------------------------------------------------------------------------*/
62 static int
63 status(int type)
64 {
65  return sky_sensors_status(INPUT_CHANNEL, type);
66 }
67 /*---------------------------------------------------------------------------*/
68 SENSORS_SENSOR(battery_sensor, BATTERY_SENSOR, value, configure, status);