/** * Copyright (c) 2021 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 bme68x.h * @date 2021-11-09 * @version v4.4.7 * */ /*! * @defgroup bme68x BME68X * @brief Product Overview * and Sensor API Source Code */ #ifndef BME68X_H_ #define BME68X_H_ #include "bme68x_defs.h" /* CPP guard */ #ifdef __cplusplus extern "C" { #endif /** * \ingroup bme68x * \defgroup bme68xApiInit Initialization * @brief Initialize the sensor and device structure */ /*! * \ingroup bme68xApiInit * \page bme68x_api_bme68x_init bme68x_init * \code * int8_t bme68x_init(struct bme68x_dev *dev); * \endcode * @details This API reads the chip-id of the sensor which is the first step to * verify the sensor and also calibrates the sensor * As this API is the entry point, call this API before using other APIs. * * @param[in,out] dev : Structure instance of bme68x_dev * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_init(struct bme68x_dev *dev); /** * \ingroup bme68x * \defgroup bme68xApiRegister Registers * @brief Generic API for accessing sensor registers */ /*! * \ingroup bme68xApiRegister * \page bme68x_api_bme68x_set_regs bme68x_set_regs * \code * int8_t bme68x_set_regs(const uint8_t reg_addr, const uint8_t *reg_data, uint32_t len, struct bme68x_dev *dev) * \endcode * @details This API writes the given data to the register address of the sensor * * @param[in] reg_addr : Register addresses to where the data is to be written * @param[in] reg_data : Pointer to data buffer which is to be written * in the reg_addr of sensor. * @param[in] len : No of bytes of data to write * @param[in,out] dev : Structure instance of bme68x_dev * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_set_regs(const uint8_t *reg_addr, const uint8_t *reg_data, uint32_t len, struct bme68x_dev *dev); /*! * \ingroup bme68xApiRegister * \page bme68x_api_bme68x_get_regs bme68x_get_regs * \code * int8_t bme68x_get_regs(uint8_t reg_addr, uint8_t *reg_data, uint32_t len, struct bme68x_dev *dev) * \endcode * @details This API reads the data from the given register address of 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,out] dev : Structure instance of bme68x_dev. * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_get_regs(uint8_t reg_addr, uint8_t *reg_data, uint32_t len, struct bme68x_dev *dev); /** * \ingroup bme68x * \defgroup bme68xApiSystem System * @brief API that performs system-level operations */ /*! * \ingroup bme68xApiSystem * \page bme68x_api_bme68x_soft_reset bme68x_soft_reset * \code * int8_t bme68x_soft_reset(struct bme68x_dev *dev); * \endcode * @details This API soft-resets the sensor. * * @param[in,out] dev : Structure instance of bme68x_dev. * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_soft_reset(struct bme68x_dev *dev); /** * \ingroup bme68x * \defgroup bme68xApiOm Operation mode * @brief API to configure operation mode */ /*! * \ingroup bme68xApiOm * \page bme68x_api_bme68x_set_op_mode bme68x_set_op_mode * \code * int8_t bme68x_set_op_mode(const uint8_t op_mode, struct bme68x_dev *dev); * \endcode * @details This API is used to set the operation mode of the sensor * @param[in] op_mode : Desired operation mode. * @param[in] dev : Structure instance of bme68x_dev * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_set_op_mode(const uint8_t op_mode, struct bme68x_dev *dev); /*! * \ingroup bme68xApiOm * \page bme68x_api_bme68x_get_op_mode bme68x_get_op_mode * \code * int8_t bme68x_get_op_mode(uint8_t *op_mode, struct bme68x_dev *dev); * \endcode * @details This API is used to get the operation mode of the sensor. * * @param[out] op_mode : Desired operation mode. * @param[in,out] dev : Structure instance of bme68x_dev * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_get_op_mode(uint8_t *op_mode, struct bme68x_dev *dev); /*! * \ingroup bme68xApiConfig * \page bme68x_api_bme68x_get_meas_dur bme68x_get_meas_dur * \code * uint32_t bme68x_get_meas_dur(const uint8_t op_mode, struct bme68x_conf *conf, struct bme68x_dev *dev); * \endcode * @details This API is used to get the remaining duration that can be used for heating. * * @param[in] op_mode : Desired operation mode. * @param[in] conf : Desired sensor configuration. * @param[in] dev : Structure instance of bme68x_dev * * @return Measurement duration calculated in microseconds */ uint32_t bme68x_get_meas_dur(const uint8_t op_mode, struct bme68x_conf *conf, struct bme68x_dev *dev); /** * \ingroup bme68x * \defgroup bme68xApiData Data Read out * @brief Read our data from the sensor */ /*! * \ingroup bme68xApiData * \page bme68x_api_bme68x_get_data bme68x_get_data * \code * int8_t bme68x_get_data(uint8_t op_mode, struct bme68x_data *data, uint8_t *n_data, struct bme68x_dev *dev); * \endcode * @details This API reads the pressure, temperature and humidity and gas data * from the sensor, compensates the data and store it in the bme68x_data * structure instance passed by the user. * * @param[in] op_mode : Expected operation mode. * @param[out] data : Structure instance to hold the data. * @param[out] n_data : Number of data instances available. * @param[in,out] dev : Structure instance of bme68x_dev * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_get_data(uint8_t op_mode, struct bme68x_data *data, uint8_t *n_data, struct bme68x_dev *dev); /** * \ingroup bme68x * \defgroup bme68xApiConfig Configuration * @brief Configuration API of sensor */ /*! * \ingroup bme68xApiConfig * \page bme68x_api_bme68x_set_conf bme68x_set_conf * \code * int8_t bme68x_set_conf(struct bme68x_conf *conf, struct bme68x_dev *dev); * \endcode * @details This API is used to set the oversampling, filter and odr configuration * * @param[in] conf : Desired sensor configuration. * @param[in,out] dev : Structure instance of bme68x_dev. * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_set_conf(struct bme68x_conf *conf, struct bme68x_dev *dev); /*! * \ingroup bme68xApiConfig * \page bme68x_api_bme68x_get_conf bme68x_get_conf * \code * int8_t bme68x_get_conf(struct bme68x_conf *conf, struct bme68x_dev *dev); * \endcode * @details This API is used to get the oversampling, filter and odr * configuration * * @param[out] conf : Present sensor configuration. * @param[in,out] dev : Structure instance of bme68x_dev. * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_get_conf(struct bme68x_conf *conf, struct bme68x_dev *dev); /*! * \ingroup bme68xApiConfig * \page bme68x_api_bme68x_set_heatr_conf bme68x_set_heatr_conf * \code * int8_t bme68x_set_heatr_conf(uint8_t op_mode, const struct bme68x_heatr_conf *conf, struct bme68x_dev *dev); * \endcode * @details This API is used to set the gas configuration of the sensor. * * @param[in] op_mode : Expected operation mode of the sensor. * @param[in] conf : Desired heating configuration. * @param[in,out] dev : Structure instance of bme68x_dev. * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_set_heatr_conf(uint8_t op_mode, const struct bme68x_heatr_conf *conf, struct bme68x_dev *dev); /*! * \ingroup bme68xApiConfig * \page bme68x_api_bme68x_get_heatr_conf bme68x_get_heatr_conf * \code * int8_t bme68x_get_heatr_conf(const struct bme68x_heatr_conf *conf, struct bme68x_dev *dev); * \endcode * @details This API is used to get the gas configuration of the sensor. * * @param[out] conf : Current configurations of the gas sensor. * @param[in,out] dev : Structure instance of bme68x_dev. * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_get_heatr_conf(const struct bme68x_heatr_conf *conf, struct bme68x_dev *dev); /*! * \ingroup bme68xApiSystem * \page bme68x_api_bme68x_selftest_check bme68x_selftest_check * \code * int8_t bme68x_selftest_check(const struct bme68x_dev *dev); * \endcode * @details This API performs Self-test of low gas variant of BME68X * * @param[in, out] dev : Structure instance of bme68x_dev * * @return Result of API execution status * @retval 0 -> Success * @retval < 0 -> Fail */ int8_t bme68x_selftest_check(const struct bme68x_dev *dev); #ifdef __cplusplus } #endif /* End of CPP guard */ #endif /* BME68X_H_ */