bhy_parse.c

/**
* Copyright (c) 2025 Bosch Sensortec GmbH. All rights reserved.
*
* BSD-3-Clause
*
* 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 copyright holder 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 COPYRIGHT HOLDERS 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
* COPYRIGHT HOLDER 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.
*
* @file       bhy_parse.c
* @date       2025-03-28
* @version    v2.1.0
*
*/

#include "bhy.h"
#include "bhy_parse.h"

void bhy_parse_temperature_celsius(const uint8_t *data, bhy_float *temperature)
{
    /* 1 LSB = 1/100 degC */
    float scale_factor = (float)1 / 100;

    *temperature = BHY_LE2S16(data) * scale_factor;
}

void bhy_parse_humidity(const uint8_t *data, bhy_float *humidity)
{
    float scale_factor = (float)1;

    *humidity = data[0] * scale_factor;
}

void bhy_parse_pressure(const uint8_t *data, bhy_float *pressure)
{
    /* 1 LSB = 1/128 Pa */
    float scale_factor = (float)1 / 128;

    *pressure = (float)BHY_LE2U24(data) * scale_factor;
}

void bhy_parse_altitude(const uint8_t *data, bhy_float *altitude)
{
    *altitude = (float)(data[0] | ((uint32_t)data[1] << 8) | ((uint32_t)data[2] << 16) | ((uint32_t)data[3] << 24));
}