Contiki-NG
sensors.h
1 /*
2  * Copyright (c) 2009, 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  * This file is part of the Contiki operating system.
30  *
31  */
32 
33 #ifndef SENSORS_H_
34 #define SENSORS_H_
35 
36 #include "contiki.h"
37 
38 /* some constants for the configure API */
39 #define SENSORS_HW_INIT 128 /* internal - used only for initialization */
40 #define SENSORS_ACTIVE 129 /* ACTIVE => 0 -> turn off, 1 -> turn on */
41 #define SENSORS_READY 130 /* read only */
42 
43 #define SENSORS_ACTIVATE(sensor) (sensor).configure(SENSORS_ACTIVE, 1)
44 #define SENSORS_DEACTIVATE(sensor) (sensor).configure(SENSORS_ACTIVE, 0)
45 
46 #define SENSORS_SENSOR(name, type, value, configure, status) \
47 const struct sensors_sensor name = { type, value, configure, status }
48 
49 #define SENSORS_NUM (sizeof(sensors) / sizeof(struct sensors_sensor *))
50 
51 #define SENSORS(...) \
52 const struct sensors_sensor *sensors[] = {__VA_ARGS__, NULL}; \
53 unsigned char sensors_flags[SENSORS_NUM]
54 
55 struct sensors_sensor {
56  char * type;
57  int (* value) (int type);
58  int (* configure) (int type, int value);
59  int (* status) (int type);
60 };
61 
62 const struct sensors_sensor *sensors_find(const char *type);
63 const struct sensors_sensor *sensors_next(const struct sensors_sensor *s);
64 const struct sensors_sensor *sensors_first(void);
65 
66 void sensors_changed(const struct sensors_sensor *s);
67 
68 extern process_event_t sensors_event;
69 
70 PROCESS_NAME(sensors_process);
71 
72 #endif /* SENSORS_H_ */
#define PROCESS_NAME(name)
Declare the name of a process.
Definition: process.h:286