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pir-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#include "dev/pir-sensor.h"
32#include "lib/simEnvChange.h"
33
34const struct sensors_sensor pir_sensor;
35
36// COOJA variables
37char simPirChanged;
38char simPirIsActive;
39char simPirValue = 0;
40
41/*---------------------------------------------------------------------------*/
42static int
43value(int type)
44{
45 return simPirValue;
46}
47/*---------------------------------------------------------------------------*/
48static int
49configure(int type, int c)
50{
51 switch(type) {
52 case SENSORS_HW_INIT:
53 simPirIsActive = 0;
54 return 1;
55 case SENSORS_ACTIVE:
56 simPirIsActive = c;
57 return 1;
58 }
59 return 0;
60}
61/*---------------------------------------------------------------------------*/
62static int
63status(int type)
64{
65 switch(type) {
66 case SENSORS_ACTIVE:
67 case SENSORS_READY:
68 return simPirIsActive;
69 }
70 return 0;
71}
72/*---------------------------------------------------------------------------*/
73static void
74doInterfaceActionsBeforeTick(void)
75{
76 // Check if PIR value has changed
77 if (simPirIsActive && simPirChanged) {
78 simPirValue++;
79
80 sensors_changed(&pir_sensor);
81 simPirChanged = 0;
82 }
83}
84/*---------------------------------------------------------------------------*/
85COOJA_PRE_TICK_ACTION(COOJA_PIR_INIT_PRIO, doInterfaceActionsBeforeTick);
86
87SENSORS_SENSOR(pir_sensor, PIR_SENSOR,
88 value, configure, status);