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- /**
- * Copyright (c) 2020 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 bme280.h
- * @date 2020-01-24
- * @version v3.4.3
- *
- */
- /*! @file bme280.h
- * @brief Sensor driver for BME280 sensor
- */
- /*!
- * @defgroup BME280 SENSOR API
- */
- #ifndef BME280_H_
- #define BME280_H_
- /*! CPP guard */
- #ifdef __cplusplus
- extern "C" {
- #endif
- /* Header includes */
- #include "bme280_defs.h"
- /*!
- * @brief This API is the entry point.
- * It reads the chip-id and calibration data from the sensor.
- *
- * @param[in,out] dev : Structure instance of bme280_dev
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error
- */
- int8_t bme280_init(struct bme280_dev *dev);
- /*!
- * @brief This API writes the given data to the register address
- * of the sensor.
- *
- * @param[in] reg_addr : Register address from where the data to be written.
- * @param[in] reg_data : Pointer to data buffer which is to be written
- * in the sensor.
- * @param[in] len : No of bytes of data to write..
- * @param[in] dev : Structure instance of bme280_dev.
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error
- */
- int8_t bme280_set_regs(uint8_t *reg_addr, const uint8_t *reg_data, uint8_t len, const struct bme280_dev *dev);
- /*!
- * @brief This API reads the data from the given register address of the sensor.
- *
- * @param[in] reg_addr : Register address from where the data to be read
- * @param[out] reg_data : Pointer to data buffer to store the read data.
- * @param[in] len : No of bytes of data to be read.
- * @param[in] dev : Structure instance of bme280_dev.
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error
- */
- int8_t bme280_get_regs(uint8_t reg_addr, uint8_t *reg_data, uint16_t len, const struct bme280_dev *dev);
- /*!
- * @brief This API sets the oversampling, filter and standby duration
- * (normal mode) settings in the sensor.
- *
- * @param[in] dev : Structure instance of bme280_dev.
- * @param[in] desired_settings : Variable used to select the settings which
- * are to be set in the sensor.
- *
- * @note : Below are the macros to be used by the user for selecting the
- * desired settings. User can do OR operation of these macros for configuring
- * multiple settings.
- *
- * Macros | Functionality
- * -----------------------|----------------------------------------------
- * BME280_OSR_PRESS_SEL | To set pressure oversampling.
- * BME280_OSR_TEMP_SEL | To set temperature oversampling.
- * BME280_OSR_HUM_SEL | To set humidity oversampling.
- * BME280_FILTER_SEL | To set filter setting.
- * BME280_STANDBY_SEL | To set standby duration setting.
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
- */
- int8_t bme280_set_sensor_settings(uint8_t desired_settings, const struct bme280_dev *dev);
- /*!
- * @brief This API gets the oversampling, filter and standby duration
- * (normal mode) settings from the sensor.
- *
- * @param[in,out] dev : Structure instance of bme280_dev.
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
- */
- int8_t bme280_get_sensor_settings(struct bme280_dev *dev);
- /*!
- * @brief This API sets the power mode of the sensor.
- *
- * @param[in] dev : Structure instance of bme280_dev.
- * @param[in] sensor_mode : Variable which contains the power mode to be set.
- *
- * sensor_mode | Macros
- * ---------------------|-------------------
- * 0 | BME280_SLEEP_MODE
- * 1 | BME280_FORCED_MODE
- * 3 | BME280_NORMAL_MODE
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error
- */
- int8_t bme280_set_sensor_mode(uint8_t sensor_mode, const struct bme280_dev *dev);
- /*!
- * @brief This API gets the power mode of the sensor.
- *
- * @param[in] dev : Structure instance of bme280_dev.
- * @param[out] sensor_mode : Pointer variable to store the power mode.
- *
- * sensor_mode | Macros
- * ---------------------|-------------------
- * 0 | BME280_SLEEP_MODE
- * 1 | BME280_FORCED_MODE
- * 3 | BME280_NORMAL_MODE
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error
- */
- int8_t bme280_get_sensor_mode(uint8_t *sensor_mode, const struct bme280_dev *dev);
- /*!
- * @brief This API performs the soft reset of the sensor.
- *
- * @param[in] dev : Structure instance of bme280_dev.
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
- */
- int8_t bme280_soft_reset(const struct bme280_dev *dev);
- /*!
- * @brief This API reads the pressure, temperature and humidity data from the
- * sensor, compensates the data and store it in the bme280_data structure
- * instance passed by the user.
- *
- * @param[in] sensor_comp : Variable which selects which data to be read from
- * the sensor.
- *
- * sensor_comp | Macros
- * ------------|-------------------
- * 1 | BME280_PRESS
- * 2 | BME280_TEMP
- * 4 | BME280_HUM
- * 7 | BME280_ALL
- *
- * @param[out] comp_data : Structure instance of bme280_data.
- * @param[in] dev : Structure instance of bme280_dev.
- *
- * @return Result of API execution status
- * @retval zero -> Success / +ve value -> Warning / -ve value -> Error
- */
- int8_t bme280_get_sensor_data(uint8_t sensor_comp, struct bme280_data *comp_data, struct bme280_dev *dev);
- /*!
- * @brief This API is used to parse the pressure, temperature and
- * humidity data and store it in the bme280_uncomp_data structure instance.
- *
- * @param[in] reg_data : Contains register data which needs to be parsed
- * @param[out] uncomp_data : Contains the uncompensated pressure, temperature
- * and humidity data.
- */
- void bme280_parse_sensor_data(const uint8_t *reg_data, struct bme280_uncomp_data *uncomp_data);
- /*!
- * @brief This API is used to compensate the pressure and/or
- * temperature and/or humidity data according to the component selected by the
- * user.
- *
- * @param[in] sensor_comp : Used to select pressure and/or temperature and/or
- * humidity.
- * @param[in] uncomp_data : Contains the uncompensated pressure, temperature and
- * humidity data.
- * @param[out] comp_data : Contains the compensated pressure and/or temperature
- * and/or humidity data.
- * @param[in] calib_data : Pointer to the calibration data structure.
- *
- * @return Result of API execution status.
- * @retval zero -> Success / -ve value -> Error
- */
- int8_t bme280_compensate_data(uint8_t sensor_comp,
- const struct bme280_uncomp_data *uncomp_data,
- struct bme280_data *comp_data,
- struct bme280_calib_data *calib_data);
- /*!
- * @brief This API is used to calculate the maximum delay in milliseconds required for the
- * temperature/pressure/humidity(which ever are enabled) measurement to complete.
- * The delay depends upon the number of sensors enabled and their oversampling configuration.
- *
- * @param[in] settings : contains the oversampling configurations.
- *
- * @return delay required in milliseconds.
- */
- uint32_t bme280_cal_meas_delay(const struct bme280_settings *settings);
- #ifdef __cplusplus
- }
- #endif /* End of CPP guard */
- #endif /* BME280_H_ */
- /** @}*/
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