contiki/core/lib/sensors.h

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/*
* Copyright (c) 2005, 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.
*
* This file is part of the Contiki operating system.
*
* @(#)$Id: sensors.h,v 1.2 2007/11/17 18:05:56 adamdunkels Exp $
*/
#ifndef __SENSORS_H__
#define __SENSORS_H__
#include "contiki.h"
#define SENSORS_SENSOR(name, type, init, irq, activate, deactivate, \
active, value, configure, status) \
const struct sensors_sensor name = { type , \
init, irq, activate, deactivate, \
active, value, configure, status }
#define SENSORS_NUM (sizeof(sensors) / sizeof(struct sensors_sensor *))
#define SENSORS(...) \
const struct sensors_sensor *sensors[] = {__VA_ARGS__, NULL}; \
unsigned char sensors_flags[SENSORS_NUM]; \
struct process *sensors_selecting_proc[SENSORS_NUM]
struct sensors_sensor {
char * type;
void (* init) (void);
int (* irq) (void);
void (* activate) (void);
void (* deactivate)(void);
int (* active) (void);
unsigned int (* value) (int type);
int (* configure) (int type, void *parameters);
void * (* status) (int type);
};
struct sensors_sensor *sensors_find(char *type);
struct sensors_sensor *sensors_next(const struct sensors_sensor *s);
struct sensors_sensor *sensors_first(void);
void sensors_changed(const struct sensors_sensor *s);
void sensors_add_irq(const struct sensors_sensor *s, unsigned char irq);
void sensors_remove_irq(const struct sensors_sensor *s, unsigned char irq);
int sensors_handle_irq(unsigned char irq_flag);
void sensors_select(const struct sensors_sensor *s, struct process *p);
void sensors_unselect(const struct sensors_sensor *s, const struct process *p);
extern process_event_t sensors_event;
PROCESS_NAME(sensors_process);
void irq_init(void);
#endif /* __SENSORS_H__ */