cfabf0e6a2
new file: dev/bme280/README.bme280 new file: dev/bme280/bme280-sensor.c new file: dev/bme280/bme280-sensor.h new file: dev/bme280/bme280.c new file: dev/bme280/bme280.h
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2015, Copyright Robert Olsson
|
|
* 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.
|
|
*
|
|
*
|
|
* Author : Robert Olsson rolss@kth.se/robert@radio-sensors.com
|
|
* Created : 2016-09-14
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include "contiki.h"
|
|
#include "lib/sensors.h"
|
|
#include "dev/bme280/bme280.h"
|
|
#include "dev/bme280/bme280-sensor.h"
|
|
|
|
const struct sensors_sensor bme280_sensor;
|
|
|
|
static int
|
|
value(int type)
|
|
{
|
|
|
|
/* Read all measurements with one burst read */
|
|
bme280_read(BME280_MODE_WEATHER);
|
|
|
|
/* Return a la Contiki API */
|
|
switch(type) {
|
|
|
|
case BME280_SENSOR_TEMP:
|
|
return bme280_mea.t_overscale100 / 100;
|
|
|
|
case BME280_SENSOR_HUMIDITY:
|
|
return bme280_mea.h_overscale1024>>10;
|
|
|
|
case BME280_SENSOR_PRESSURE:
|
|
/* Scale down w. 10 not to overslow the signed int */
|
|
#ifdef BME280_64BIT
|
|
return bme280_mea.p_overscale256/(256*10);
|
|
#else
|
|
return bme280_mea.p/10;
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
status(int type)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
configure(int type, int c)
|
|
{
|
|
bme280_init(BME280_MODE_WEATHER);
|
|
}
|
|
SENSORS_SENSOR(bme280_sensor, "bme280", value, configure, status);
|