bmp180_saul.c
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/*
* Copyright (C) 2016 Inria
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup drivers_bmp180
* @{
*
* @file
* @brief SAUL adaption for BMP180 device
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*
* @}
*/
#include <string.h>
#include "saul.h"
#include "bmp180.h"
#include "xtimer.h"
static int32_t temperature, pressure;
static int check_and_read_temperature(void *dev, phydat_t *res)
{
bmp180_t *d = (bmp180_t *)dev;
bmp180_read_temperature(d, &temperature);
res->val[0] = temperature;
res->unit = UNIT_TEMP_C;
res->scale = -1;
return 1;
}
static int check_and_read_pressure(void *dev, phydat_t *res)
{
bmp180_t *d = (bmp180_t *)dev;
bmp180_read_pressure(d, &pressure);
res->val[0] = pressure/10;
res->unit = UNIT_PA;
res->scale = 1;
return 1;
}
static int read_temperature(void *dev, phydat_t *res)
{
return check_and_read_temperature(dev, res);
}
static int read_pressure(void *dev, phydat_t *res)
{
return check_and_read_pressure(dev, res);
}
const saul_driver_t bmp180_temperature_saul_driver = {
.read = read_temperature,
.write = saul_notsup,
.type = SAUL_SENSE_TEMP
};
const saul_driver_t bmp180_pressure_saul_driver = {
.read = read_pressure,
.write = saul_notsup,
.type = SAUL_SENSE_PRESS
};