492 lines
19 KiB
C
492 lines
19 KiB
C
/**
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* Copyright (c) 2017 - 2019, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef LIS2DH12_H
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#define LIS2DH12_H
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#include "nrf_twi_sensor.h"
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#include "lis2dh12_internal.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Possible sensor addresses.
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*/
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#define LIS2DH12_BASE_ADDRESS_LOW 0x18U
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#define LIS2DH12_BASE_ADDRESS_HIGH 0x19U
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// WHO_AM_I register value.
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#define LIS2DH12_WHO_AM_I 0x33
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/**
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* @brief Sensor driver usage.
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*
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* Sensor instance has to be defined first in global context using @ref LIS2DH12_INSTANCE DEF.
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* After that it has to be initialized using @ref lis2dh12_init.
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* At this point sensor instance is ready and all other functions can be used.
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*
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* Sensor settings are modified using asynchronous macros, using them does not change
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* real sensor settings until @ref lis2dh12_cfg_commit is called.
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* Example:
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* LIS2DH12_DATA_CFG(m_sensor, LIS2DH12_ODR_200HZ, false, true, true, true, LIS2DH12_SCALE_2G, 1);
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* lis2dh12_cfg_commit(&m_sensor);
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*
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* There are designated functions to read status sensor registers e.g. @ref lis2dh12_status_read
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* As parameters they receive function to be called after register is read, and pointer where
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* register value should be stored. From that value specific parameters can be extracted
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* using @ref NRF_TWI_SENSOR_REG_VAL_GET macro. For specific bitmasks, check lis2dh12_internal.h
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* Example:
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* bool zyxor = NRF_TWI_SENSOR_REG_VAL_GET(status_reg, LIS2DH12_ZYXOR_MASK, LIS2DH12_ZYXOR_POS);
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*
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* Other functions are self-explanatory or have description on their usage.
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*/
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/**
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* @brief Output data rate settings.
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*/
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typedef enum
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{
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LIS2DH12_ODR_POWERDOWN,
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LIS2DH12_ODR_1HZ,
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LIS2DH12_ODR_10HZ,
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LIS2DH12_ODR_25HZ,
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LIS2DH12_ODR_50HZ,
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LIS2DH12_ODR_100HZ,
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LIS2DH12_ODR_200HZ,
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LIS2DH12_ODR_400HZ,
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LIS2DH12_ODR_1620HZ,
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LIS2DH12_ODR_1344_5376HZ
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} lis2dh12_odr_t;
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/**
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* @brief Fifo mode settings.
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*/
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typedef enum
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{
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LIS2DH12_BYPASS,
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LIS2DH12_FIFO,
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LIS2DH12_STREAM,
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LIS2DH12_STREAM_TO_FIFO
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} lis2dh12_fifo_mode_t;
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/**
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* @brief Filter mode setting.
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*/
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typedef enum
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{
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LIS2DH12_FILTER_MODE_NORMAL_W_RESET,
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LIS2DH12_FILTER_MODE_REFERENCE,
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LIS2DH12_FILTER_MODE_NORMAL,
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LIS2DH12_FILTER_MODE_AUTO_RESET
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} lis2dh12_filter_mode_t;
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/**
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* @brief Filter frequency setting.
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*/
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typedef enum
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{
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LIS2DH12_FILTER_FREQ_1,
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LIS2DH12_FILTER_FREQ_2,
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LIS2DH12_FILTER_FREQ_3,
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LIS2DH12_FILTER_FREQ_4
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} lis2dh12_filter_freq_t;
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/**
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* @brief Accelerometer scale setting.
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*/
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typedef enum
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{
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LIS2DH12_SCALE_2G,
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LIS2DH12_SCALE_4G,
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LIS2DH12_SCALE_8G,
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LIS2DH12_SCALE_16G
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} lis2dh12_scale_t;
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/**
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* @brief Structure containing accelerometer data.
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*/
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typedef struct
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{
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int16_t x;
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int16_t y;
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int16_t z;
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} lis2dh12_data_t;
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/**
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* @brief Data callback prototype.
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*
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* @param[in] result Result of operation (NRF_SUCCESS on success,
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* otherwise a relevant error code).
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* @param[in] p_data Pointer to raw sensor data structure.
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*/
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typedef void (* lis2dh12_data_cb_t)(ret_code_t result, lis2dh12_data_t * p_data);
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/**
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* @brief Temperature callback prototype.
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*
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* @param[in] result Result of operation (NRF_SUCCESS on success,
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* otherwise a relevant error code).
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* @param[in] p_temp Temperature value.
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*/
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typedef void (* lis2dh12_temp_cb_t)(ret_code_t result, int16_t * p_temp);
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/**
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* @brief Macro for defining sensor instance.
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*
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* @param[in] _lis2dh12_inst_name Sensor instance name.
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* @param[in] _p_twi_sensor Pointer to common TWI sensor instance.
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* @param[in] _sensor_address Sensor base address.
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*/
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#define LIS2DH12_INSTANCE_DEF(_lis2dh12_inst_name, _p_twi_sensor, _sensor_address) \
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LIS2DH12_INTERNAL_INSTANCE_DEF(_lis2dh12_inst_name, _p_twi_sensor, _sensor_address)
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/**
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* @brief Macro for setting data acquisition configuration.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _odr Data rate. @ref lis2dh12_odr_t
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* @param[in] _lp Power mode. True if low power mode is enabled.
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* @param[in] _z_en Enable measure in z-axis. True if enabled.
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* @param[in] _y_en Enable measure in y-axis. True if enabled.
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* @param[in] _x_en Enable measure in x-axis. True if enabled.
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* @param[in] _scale Measurement scale. @ref lis2dh12_scale_t
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* @param[in] _high_res High resolution mode. True if enabled.
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* Low power can't be enabled when in high resolution mode.
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*/
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#define LIS2DH12_DATA_CFG(_s, _odr, _lp, _z_en, _y_en, _x_en, _scale, _high_res) \
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LIS2DH12_INTERNAL_DATA_CFG(_s, _odr, _lp, _z_en, _y_en, _x_en, _scale, _high_res)
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/**
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* @brief Function for setting filter configuration.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _mode Filter mode. @ref lis2dh12_filter_mode_t
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* @param[in] _freq Filter frequency. @ref lis2dh12_filter_freq_t
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* @param[in] _d_en Enable filter for data acquisition.
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* @param[in] _c_en Enable filter for click interrupt.
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* @param[in] _i1_en Enable filter for interrupt 1 aoi.
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* @param[in] _i2_en Enable filter for interrupt 2 aoi.
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*/
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#define LIS2DH12_FILTER_CFG(_s, _mode, _freq, _d_en, _c_en, _i1_en, _i2_en) \
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LIS2DH12_INTERNAL_FILTER_CFG(_s, _mode, _freq, _d_en, _c_en, _i1_en, _i2_en)
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/**
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* @brief Macro for configuring INT1 pin.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _cl Enable CLICK interrupt on pin.
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* @param[in] _ia1 Enable IA1 interrupt on pin.
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* @param[in] _ia2 Enable IA2 interrupt on pin.
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* @param[in] _zyxda Enable ZYXDA interrupt on pin.
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* @param[in] _wtm Enable FIFO watermark interrupt on pin.
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* @param[in] _ovr Enable FIFO overrun interrupt on pin.
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* @param[in] _pol Pin active state. Affects also int2 pin.
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* @arg true Pin is active low.
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* @arg false Pin is active high
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* @param[in] _d4d Enable 4D detection on INT1 pin when 6D is enabled on interrupt 1.
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*/
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#define LIS2DH12_INT1_PIN_CFG(_s, _cl, _ia1, _ia2, _zyxda, _wtm, _ovr, _pol, _d4d) \
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LIS2DH12_INTERNAL_INT1_PIN_CFG(_s, _cl, _ia1, _ia2, _zyxda, _wtm, _ovr, _pol, _d4d)
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/**
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* @brief Macro for configuring INT2 pin.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _cl Enable CLICK interrupt on pin.
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* @param[in] _ia1 Enable IA1 interrupt on pin.
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* @param[in] _ia2 Enable IA2 interrupt on pin.
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* @param[in] _boot Enable boot on pin.
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* @param[in] _avt Enable activity interrupt on pin.
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* @param[in] _pol Pin active state. Affects also int1 pin.
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* @arg true Pin is active low.
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* @arg false Pin is active high
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* @param[in] _d4d Enable 4D detection on INT2 pin when 6D is enabled on interrupt 2.
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*/
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#define LIS2DH12_INT2_PIN_CFG(_s, _cl, _ia1, _ia2, _boot, _act, _pol, _d4d) \
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LIS2DH12_INTERNAL_INT2_PIN_CFG(_s, _cl, _ia1, _ia2, _boot, _act, _pol, _d4d)
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/**
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* @brief Macro for configuring interrupt 1.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _thr Interrupt threshold.
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* @param[in] _dur Interrupt duration.
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* @param[in] _aoi And/Or combination of interrupt events. True if and.
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* @param[in] _6d 6-direction detection enable. True if enabled.
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* @param[in] _zh Enable interrupt on Z high event or direction recognition.
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* @param[in] _zl Enable interrupt on Z low event or direction recognition.
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* @param[in] _yh Enable interrupt on Y high event or direction recognition.
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* @param[in] _yl Enable interrupt on Y low event or direction recognition.
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* @param[in] _xh Enable interrupt on X high event or direction recognition.
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* @param[in] _xl Enable interrupt on X low event or direction recognition.
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* @param[in] _lir Latch interrupt 1 request. True if enabled.
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*/
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#define LIS2DH12_INT1_CFG(_s, _thr, _dur, _aoi, _6d, _zh, _zl, _yh, yl, _xh, _xl, _lir) \
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LIS2DH12_INTERNAL_INT1_CFG(_s, _thr, _dur, _aoi, _6d, _zh, _zl, _yh, yl, _xh, _xl, _lir)
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/**
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* @brief Macro for configuring interrupt 2.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _thr Interrupt threshold.
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* @param[in] _dur Interrupt duration.
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* @param[in] _aoi And/Or combination of interrupt events. True if and.
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* @param[in] _6d 6-direction detection enable. True if enabled.
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* @param[in] _zh Enable interrupt on Z high event or direction recognition.
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* @param[in] _zl Enable interrupt on Z low event or direction recognition.
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* @param[in] _yh Enable interrupt on Y high event or direction recognition.
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* @param[in] _yl Enable interrupt on Y low event or direction recognition.
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* @param[in] _xh Enable interrupt on X high event or direction recognition.
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* @param[in] _xl Enable interrupt on X low event or direction recognition.
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* @param[in] _lir Latch interrupt 1 request. True if enabled.
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*/
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#define LIS2DH12_INT2_CFG(_s, _thr, _dur, _aoi, _6d, _zh, _zl, _yh, yl, _xh, _xl, _lir) \
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LIS2DH12_INTERNAL_INT2_CFG(_s, _thr, _dur, _aoi, _6d, _zh, _zl, _yh, yl, _xh, _xl, _lir)
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/**
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* @brief Function for setting click configuration.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _zd Enable interrupt double-click on Z-axis.
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* @param[in] _zs Enable interrupt single-click on Z-axis.
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* @param[in] _yd Enable interrupt double-click on Y-axis.
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* @param[in] _ys Enable interrupt single-click on Y-axis.
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* @param[in] _xd Enable interrupt double-click on X-axis.
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* @param[in] _xs Enable interrupt single-click on X-axis.
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* @param[in] _lir Keep high until CLICK_SRC is read.
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* @arg true Interrupt is kept high until CLICK_SRC is read.
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* @arg false Interrupt is kept high for the duration of latency window.
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* @param[in] _ths Click threshold.
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* @param[in] _lim Click time limit.
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* @param[in] _ltc Click time latency.
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* @param[in] _win Click time window.
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*/
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#define LIS2DH12_CLICK_CFG(_s, _zd, _zs, _yd, _ys, _xd, _xs, _lir, _ths, _lim, _ltc, _win) \
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LIS2DH12_INTERNAL_CLICK_CFG(_s, _zd, _zs, _yd, _ys, _xd, _xs, _lir, _ths, _lim, _ltc, _win)
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/**
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* @brief Macro for setting sleep configuration.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _ths Sleep-to-wake, return-to-sleep activation threshold in low-power mode.
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* @param[in] _dur Sleep-to-wake, return-to-sleep duration.
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*/
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#define LIS2DH12_SLEEP_CFG(_s, _ths, _dur) \
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LIS2DH12_INTERNAL_SLEEP_CFG(_s, _ths, _dur)
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/**
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* @brief Macro for setting reference value for interrupt generation.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _ref Reference value.
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*/
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#define LIS2DH_REF_SET(_s, _ref) \
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LIS2DH_INTERNAL_REF_SET(_s, _ref)
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/**
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* @brief Macro for setting FIFO configuration.
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*
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* @param[in] _s Sensor instance.
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* @param[in] _en Enables FIFO. True if enabled. False clears FIFO setting.
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* @param[in] _mode FIFO mode. @ref lis2dh12_fifo_mode_t
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* @param[in] _t_sel Trigger event pin selection. True if int2 pin, false if int1 pin.
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* @param[in] _t_thr Trigger threshold.
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*/
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#define LIS2DH12_FIFO_CFG(_s, _en, _mode, _t_sel, _t_thr) \
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LIS2DH12_INTERNAL_FIFO_CFG(_s, _en, _mode, _t_sel, _t_thr)
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/**
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* @brief Function for initializing LIS2DH12 instance.
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*
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* @param[in] p_inst Pointer to sensor instance defined by macro. @ref LIS2DH12_INSTANCE_DEF
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*
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* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_write
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*/
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ret_code_t lis2dh12_init(lis2dh12_instance_t * p_inst);
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/**
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* @brief Function for writing configuration to sensor.
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*
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* @param[in] p_inst Pointer to sensor instance.
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*
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* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_write
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*/
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ret_code_t lis2dh12_cfg_commit(lis2dh12_instance_t * p_inst);
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/**
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* @brief Function for reading accelerometer data.
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*
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* @param[in] p_inst Pointer to sensor instance.
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* @param[in] user_cb Function to be called after data read is complete.
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* @param[in] p_data Pointer to data structure.
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* @param[in] samples Number of samples to read.
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*
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* @note When trying to read more than one sample and FIFO is disabled,
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* current output value will be copied to all read samples.
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* When trying to read more samples than there is currently in FIFO,
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* excess samples will be equal to 0.
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*
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* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
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*/
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ret_code_t lis2dh12_data_read(lis2dh12_instance_t * p_inst,
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lis2dh12_data_cb_t user_cb,
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lis2dh12_data_t * p_data,
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uint8_t samples);
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/**
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* @brief Function for enabling temperature measurement.
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*
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* @param[in] p_inst Pointer to sensor instance.
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* @param[in] temp_en Temperature measure enable. True if enabled.
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*
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* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_write
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*/
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ret_code_t lis2dh12_temp_enable(lis2dh12_instance_t * p_inst, bool temp_en);
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/**
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* @brief Function for reading temperature data.
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*
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* @param[in] p_inst Pointer to sensor instance.
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* @param[in] user_cb Function to be called after temperature read is complete.
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* @param[in] p_temp Temperature value. Pointer to single int16_t.
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*
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* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
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*/
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ret_code_t lis2dh12_temp_read(lis2dh12_instance_t * p_inst,
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lis2dh12_temp_cb_t user_cb,
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int16_t * p_temp);
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/**
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* @brief Function for reading temperature status register.
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*
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* @param[in] p_inst Pointer to sensor instance.
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* @param[in] user_cb Function to be called after register read.
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* @param[in] p_data Pointer to register data. Single uint8_t.
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*
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* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
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*/
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__STATIC_INLINE ret_code_t lis2dh12_temp_status_read(lis2dh12_instance_t * p_inst,
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nrf_twi_sensor_reg_cb_t user_cb,
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uint8_t * p_data);
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/**
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* @brief Function for reading WHO_AM_I register.
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*
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* @param[in] p_inst Pointer to sensor instance.
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* @param[in] user_cb Function to be called after register read.
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* @param[in] p_data Pointer to register data. Single uint8_t.
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*
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* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
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*/
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__STATIC_INLINE ret_code_t lis2dh12_who_am_i_read(lis2dh12_instance_t * p_inst,
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nrf_twi_sensor_reg_cb_t user_cb,
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uint8_t * p_data);
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|
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/**
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* @brief Function for reading status register.
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*
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* @param[in] p_inst Pointer to sensor instance.
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* @param[in] user_cb Function to be called after register read.
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* @param[in] p_data Pointer to register data. Single uint8_t.
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|
*
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* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
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|
*/
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|
__STATIC_INLINE ret_code_t lis2dh12_status_read(lis2dh12_instance_t * p_inst,
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|
nrf_twi_sensor_reg_cb_t user_cb,
|
|
uint8_t * p_data);
|
|
|
|
/**
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|
* @brief Function for reading FIFO source register.
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|
*
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|
* @param[in] p_inst Pointer to sensor instance.
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|
* @param[in] user_cb Function to be called after register read.
|
|
* @param[in] p_data Pointer to register data. Single uint8_t.
|
|
*
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|
* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
|
|
*/
|
|
__STATIC_INLINE ret_code_t lis2dh12_fifo_src_read(lis2dh12_instance_t * p_inst,
|
|
nrf_twi_sensor_reg_cb_t user_cb,
|
|
uint8_t * p_data);
|
|
|
|
/**
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|
* @brief Function for reading interrupt 1 source register.
|
|
*
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|
* @param[in] p_inst Pointer to sensor instance.
|
|
* @param[in] user_cb Function to be called after register read.
|
|
* @param[in] p_data Pointer to register data. Single uint8_t.
|
|
*
|
|
* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
|
|
*/
|
|
__STATIC_INLINE ret_code_t lis2dh12_int1_src_read(lis2dh12_instance_t * p_inst,
|
|
nrf_twi_sensor_reg_cb_t user_cb,
|
|
uint8_t * p_data);
|
|
|
|
/**
|
|
* @brief Function for reading interrupt 2 source register.
|
|
*
|
|
* @param[in] p_inst Pointer to sensor instance.
|
|
* @param[in] user_cb Function to be called after register read.
|
|
* @param[in] p_data Pointer to register data. Single uint8_t.
|
|
*
|
|
* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
|
|
*/
|
|
__STATIC_INLINE ret_code_t lis2dh12_int2_src_read(lis2dh12_instance_t * p_inst,
|
|
nrf_twi_sensor_reg_cb_t user_cb,
|
|
uint8_t * p_data);
|
|
|
|
/**
|
|
* @brief Function for reading click source register.
|
|
*
|
|
* @param[in] p_inst Pointer to sensor instance.
|
|
* @param[in] user_cb Function to be called after register read.
|
|
* @param[in] p_data Pointer to register data. Single uint8_t.
|
|
*
|
|
* @return Return error code from nrf_twi_sensor @ref nrf_twi_sensor_reg_read
|
|
*/
|
|
__STATIC_INLINE ret_code_t lis2dh12_click_src_read(lis2dh12_instance_t * p_inst,
|
|
nrf_twi_sensor_reg_cb_t user_cb,
|
|
uint8_t * p_data);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // LIS2DH12_H
|