/** * Copyright (c) 2017 - 2019, Nordic Semiconductor ASA * * All rights reserved. * * 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, except as embedded into a Nordic * Semiconductor ASA integrated circuit in a product or a software update for * such product, 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 Nordic Semiconductor ASA nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * 4. This software, with or without modification, must only be used with a * Nordic Semiconductor ASA integrated circuit. * * 5. Any software provided in binary form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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. * */ #ifndef LPS22HB_INTERNAL_H #define LPS22HB_INTERNAL_H #ifdef __cplusplus extern "C" { #endif #define LPS22HB_BYTES_PER_SAMPLE 5 /** * @brief LPS22HB sensor registers. */ #define LPS22HB_REG_INTERRUPT_CONFIG 0x0B #define LPS22HB_REG_THS_P_L 0x0C #define LPS22HB_REG_THS_P_H 0x0D #define LPS22HB_REG_WHO_AM_I 0x0F #define LPS22HB_REG_CTRL1 0x10 #define LPS22HB_REG_CTRL2 0x11 #define LPS22HB_REG_CTRL3 0x12 #define LPS22HB_REG_FIFO_CTRL 0x14 #define LPS22HB_REG_REF_P_XL 0x15 #define LPS22HB_REG_REF_P_L 0x16 #define LPS22HB_REG_REF_P_H 0x17 #define LPS22HB_REG_RPDS_L 0x18 #define LPS22HB_REG_RPDS_H 0x19 #define LPS22HB_REG_RES_CONF 0x1A #define LPS22HB_REG_INT_SOURCE 0x25 #define LPS22HB_REG_FIFO_STATUS 0x26 #define LPS22HB_REG_STATUS 0x27 #define LPS22HB_REG_PRESS_OUT_XL 0x28 #define LPS22HB_REG_PRESS_OUT_L 0x29 #define LPS22HB_REG_PRESS_OUT_H 0x2A #define LPS22HB_REG_TEMP_OUT_L 0x2B #define LPS22HB_REG_TEMP_OUT_H 0x2C #define LPS22HB_REG_LPFP_RES 0x33 /** * @brief Interrupt config register bitmasks. */ // Bitmasks for AUTORIFP. #define LPS22HB_AUTORIFP_POS 7 #define LPS22HB_AUTORIFP_MASK (1 << LPS22HB_AUTORIFP_POS) // Bitmasks for RESET_ARP. #define LPS22HB_RESET_ARP_POS 6 #define LPS22HB_RESET_ARP_MASK (1 << LPS22HB_RESET_ARP_POS) // Bitmasks for AUTOZERO. #define LPS22HB_AUTOZERO_POS 5 #define LPS22HB_AUTOZERO_MASK (1 << LPS22HB_AUTOZERO_POS) // Bitmasks for RESET_AZ. #define LPS22HB_RESET_AZ_POS 4 #define LPS22HB_RESET_AZ_MASK (1 << LPS22HB_RESET_AZ_POS) // Bitmasks for DIFF_EN. #define LPS22HB_DIFF_EN_POS 3 #define LPS22HB_DIFF_EN_MASK (1 << LPS22HB_DIFF_EN_POS) // Bitmasks for LIR. #define LPS22HB_LIR_POS 2 #define LPS22HB_LIR_MASK (1 << LPS22HB_LIR_POS) // Bitmasks for PLE. #define LPS22HB_PLE_POS 1 #define LPS22HB_PLE_MASK (1 << LPS22HB_PLE_POS) // Bitmasks for PHE. #define LPS22HB_PHE_POS 0 #define LPS22HB_PHE_MASK (1 << LPS22HB_PHE_POS) /** * @brief Control register 1 bitmasks. */ // Register validity bitmask. #define LPS22HB_CTRL1_VALID_MASK 0x80 // Bitmasks for ODR. #define LPS22HB_ODR_POS 4 #define LPS22HB_ODR_MASK (7 << LPS22HB_ODR_POS) // Bitmasks for EN_LPFP. #define LPS22HB_EN_LPFP_POS 3 #define LPS22HB_EN_LPFP_MASK (1 << LPS22HB_EN_LPFP_POS) // Bitmasks for LPFP_CFG. #define LPS22HB_LPFP_CFG_POS 2 #define LPS22HB_LPFP_CFG_MASK (1 << LPS22HB_LPFP_CFG_POS) // Bitmasks for BDU. #define LPS22HB_BDU_POS 1 #define LPS22HB_BDU_MASK (1 << LPS22HB_BDU_POS) // Bitmasks for SIM. #define LPS22HB_SIM_POS 0 #define LPS22HB_SIM_MASK (1 << LPS22HB_SIM_POS) /** * @brief Control register 2 bitmasks. */ // Register validity bitmask. #define LPS22HB_CTRL2_VALID_MASK 0x02 // Bitmasks for BOOT. #define LPS22HB_BOOT_POS 7 #define LPS22HB_BOOT_MASK (1 << LPS22HB_BOOT_POS) // Bitmasks for FIFO_EN. #define LPS22HB_FIFO_EN_POS 6 #define LPS22HB_FIFO_EN_MASK (1 << LPS22HB_FIFO_EN_POS) // Bitmasks for STOP_ON_FTH. #define LPS22HB_STOP_ON_FTH_POS 5 #define LPS22HB_STOP_ON_FTH_MASK (1 << LPS22HB_STOP_ON_FTH_POS) // Bitmasks for IF_ADD_INC. #define LPS22HB_IF_ADD_INC_POS 4 #define LPS22HB_IF_ADD_INC_MASK (1 << LPS22HB_IF_ADD_INC_POS) // Bitmasks for I2C_DIS. #define LPS22HB_I2C_DIS_POS 3 #define LPS22HB_I2C_DIS_MASK (1 << LPS22HB_I2C_DIS_POS) // Bitmasks for SWRESET. #define LPS22HB_SWRESET_POS 2 #define LPS22HB_SWRESET_MASK (1 << LPS22HB_SWRESET_POS) // Bitmasks for ONE_SHOT. #define LPS22HB_ONE_SHOT_POS 0 #define LPS22HB_ONE_SHOT_MASK (1 << LPS22HB_ONE_SHOT_POS) /** * @brief Control register 3 bitmasks. */ // Bitmasks for INT_H_L. #define LPS22HB_INT_H_L_POS 7 #define LPS22HB_INT_H_L_MASK (1 << LPS22HB_INT_H_L_POS) // Bitmasks for PP_OD. #define LPS22HB_PP_OD_POS 6 #define LPS22HB_PP_OD_MASK (1 << LPS22HB_PP_OD_POS) // Bitmasks for F_FSS5. #define LPS22HB_F_FSS5_POS 5 #define LPS22HB_F_FSS5_MASK (1 << LPS22HB_F_FSS5_POS) // Bitmasks for F_FTH. #define LPS22HB_F_FTH_POS 4 #define LPS22HB_F_FTH_MASK (1 << LPS22HB_F_FTH_POS) // Bitmasks for F_OVR. #define LPS22HB_F_OVR_POS 3 #define LPS22HB_F_OVR_MASK (1 << LPS22HB_F_OVR_POS) // Bitmasks for DRDY. #define LPS22HB_DRDY_POS 2 #define LPS22HB_DRDY_MASK (1 << LPS22HB_DRDY_POS) // Bitmasks for INT_S. #define LPS22HB_INT_S_POS 0 #define LPS22HB_INT_S_MASK (3 << LPS22HB_INT_S_POS) /** * @brief Fifo control register bitmasks. */ // Bitmasks for F_MODE. #define LPS22HB_F_MODE_POS 5 #define LPS22HB_F_MODE_MASK (7 << LPS22HB_F_MODE_POS) // Bitmasks for WTM #define LPS22HB_WTM_POS 0 #define LPS22HB_WTM_MASK (0x1F << LPS22HB_WTM_POS) /** * @brief Low power mode register bitmasks. */ // Register validity bitmask. #define LPS22HB_RES_CONF_VALID_MASK 0xFE // Bitmasks for LC_EN #define LPS22HB_LC_EN_POS 0 #define LPS22HB_LC_EN_MASK (1 << LPS22HB_LC_EN_POS) /** * @brief INT source register bitmasks. */ // Bitmasks for IA #define LPS22HB_IA_POS 2 #define LPS22HB_IA_MASK (1 << LPS22HB_IA_POS) // Bitmasks for PL #define LPS22HB_PL_POS 1 #define LPS22HB_PL_MASK (1 << LPS22HB_PL_POS) // Bitmasks for PH #define LPS22HB_PH_POS 0 #define LPS22HB_PH_MASK (1 << LPS22HB_PH_POS) /** * @brief FIFO status register bitmasks. */ // Bitmasks for FTH_FIFO #define LPS22HB_FTH_FIFO_POS 7 #define LPS22HB_FTH_FIFO_MASK (1 << LPS22HB_FTH_FIFO_POS) // Bitmasks for OVR #define LPS22HB_OVR_POS 6 #define LPS22HB_OVR_MASK (1 << LPS22HB_OVR_POS) // Bitmasks for stored data level #define LPS22HB_FSS_POS 0 #define LPS22HB_FSS_MASK (0x3F << LPS22HB_FSS_POS) /** * @brief Status register bitmasks. */ // Bitmasks for T_OR. #define LPS22HB_T_OR_POS 5 #define LPS22HB_T_OR_MASK (1 << LPS22HB_T_OR_POS) // Bitmasks for P_OR. #define LPS22HB_P_OR_POS 4 #define LPS22HB_P_OR_MASK (1 << LPS22HB_P_OR_POS) // Bitmasks for T_DA. #define LPS22HB_T_DA_POS 1 #define LPS22HB_T_DA_MASK (1 << LPS22HB_T_DA_POS) // Bitmasks for P_DA. #define LPS22HB_P_DA_POS 0 #define LPS22HB_P_DA_MASK (1 << LPS22HB_P_DA_POS) /** * @brief Config registers defaults. */ #define LPS22HB_CTRL_REG2_DEFAULT 0x10 /** * @brief Raw pressure and temperature data. * * @note For internal use only. */ typedef struct { uint8_t press_out_xl; uint8_t press_out_l; uint8_t press_out_h; uint8_t temp_out_l; uint8_t temp_out_h; } lps22hb_raw_data_t; /** * @brief Structure holding sensor instance * * @note For internal use only. */ typedef struct { nrf_twi_sensor_t * const p_sensor_data; uint8_t const sensor_addr; uint8_t interrupt_cfg; uint8_t ctrl_reg[3]; uint8_t fifo_ctrl; } lps22hb_instance_t; #define LPS22HB_INTERNAL_INSTANCE_DEF(_lps22hb_inst_name, _p_twi_sensor, _sensor_address) \ static lps22hb_instance_t _lps22hb_inst_name = \ { \ .p_sensor_data = _p_twi_sensor, \ .sensor_addr = _sensor_address, \ } #define LPS22HB_INTERNAL_INT_CFG(_s, _diff_en, _lir, _ple, _phe) \ NRF_TWI_SENSOR_REG_SET(_s.interrupt_cfg, LPS22HB_DIFF_EN_MASK, LPS22HB_DIFF_EN_POS, _diff_en); \ NRF_TWI_SENSOR_REG_SET(_s.interrupt_cfg, LPS22HB_LIR_MASK, LPS22HB_LIR_POS, _lir); \ NRF_TWI_SENSOR_REG_SET(_s.interrupt_cfg, LPS22HB_PLE_MASK, LPS22HB_PLE_POS, _ple); \ NRF_TWI_SENSOR_REG_SET(_s.interrupt_cfg, LPS22HB_PHE_MASK, LPS22HB_PHE_POS, _phe); #define LPS22HB_INTERNAL_DATA_CFG(_s, _odr, _f_en, _f_cfg) \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[0], LPS22HB_ODR_MASK, LPS22HB_ODR_POS, _odr); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[0], LPS22HB_EN_LPFP_MASK, LPS22HB_EN_LPFP_POS, _f_en); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[0], LPS22HB_LPFP_CFG_MASK, LPS22HB_LPFP_CFG_POS, _f_cfg); #define LPS22HB_INTERNAL_FIFO_CFG(_s, _f_mode, _f_en, _f_stop, _f_wtm) \ NRF_TWI_SENSOR_REG_SET(_s.fifo_ctrl, LPS22HB_F_MODE_MASK, LPS22HB_F_MODE_POS, _f_mode); \ NRF_TWI_SENSOR_REG_SET(_s.fifo_ctrl, LPS22HB_WTM_MASK, LPS22HB_WTM_POS, _f_wtm); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[1], LPS22HB_FIFO_EN_MASK, LPS22HB_FIFO_EN_POS, _f_en); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[1], \ LPS22HB_STOP_ON_FTH_MASK, \ LPS22HB_STOP_ON_FTH_POS, \ _f_stop) #define LPS22HB_INTERNAL_DRDY_CFG(_s, _activ, _pp_od, _fss, _fth, _ovr, _drdy, _high, _low) \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[2], LPS22HB_INT_H_L_MASK, LPS22HB_INT_H_L_POS, _activ); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[2], LPS22HB_PP_OD_MASK, LPS22HB_PP_OD_POS, _pp_od); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[2], LPS22HB_F_FSS5_MASK, LPS22HB_F_FSS5_POS, _fss); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[2], LPS22HB_F_FTH_MASK, LPS22HB_F_FTH_POS, _fth); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[2], LPS22HB_F_OVR_MASK, LPS22HB_F_OVR_POS, _ovr); \ NRF_TWI_SENSOR_REG_SET(_s.ctrl_reg[2], \ LPS22HB_INT_S_MASK, \ LPS22HB_INT_S_MASK, \ (_low << 1) + _high); #ifdef __cplusplus } #endif #endif // LPS22HB_INTERNAL_H