diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/drivers_ext/hts221/hts221.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/drivers_ext/hts221/hts221.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/drivers_ext/hts221/hts221.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/drivers_ext/hts221/hts221.c new file mode 100644 index 0000000..ce77d60 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/drivers_ext/hts221/hts221.c @@ -0,0 +1,255 @@ +/** + * Copyright (c) 2017 - 2018, 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. + * + */ +#include "hts221.h" +#include <string.h> + +#define HTS221_WRITE(p_instance, msg) \ + nrf_twi_sensor_write(p_instance->p_sensor_data, \ + p_instance->sensor_addr, \ + msg, \ + ARRAY_SIZE(msg), \ + true) + +static void hts221_init_cb(ret_code_t result, void * p_register_data) +{ + hts221_calib_t * calib_info = (hts221_calib_t *) p_register_data; + uint8_t calib_raw[HTS221_REG_CALIBRATION_NUM]; + memcpy(calib_raw, calib_info, HTS221_REG_CALIBRATION_NUM); + + calib_info->H0_rH_x2 = calib_raw[0]; + calib_info->H1_rH_x2 = calib_raw[1]; + calib_info->T0_degC_x8 = (uint16_t)calib_raw[2] + + ((uint16_t)(calib_raw[5] & 0x03) << 8); + calib_info->T1_degC_x8 = (uint16_t)calib_raw[3] + + ((uint16_t)((calib_raw[5] >> 2) & 0x03) << 8); + calib_info->H0_T0_OUT = (int16_t)calib_raw[6] + ((int16_t)calib_raw[7] << 8); + calib_info->H1_T0_OUT = (int16_t)calib_raw[10] + ((int16_t)calib_raw[11] << 8); + calib_info->T0_OUT = (int16_t)calib_raw[12] + ((int16_t)calib_raw[13] << 8); + calib_info->T1_OUT = (int16_t)calib_raw[14] + ((int16_t)calib_raw[15] << 8); + +} + +ret_code_t hts221_init(hts221_instance_t * p_instance) +{ + ASSERT(p_instance != NULL); + if (p_instance->p_sensor_data->p_twi_mngr->p_queue->size < HTS221_MIN_QUEUE_SIZE) + { + return NRF_ERROR_INVALID_LENGTH; + } + p_instance->ctrl_reg1 = 0; + uint8_t send_msg[] = { + HTS221_REG_AV_CONF, + HTS221_DEF_AV_CONF, + 0, + 0, + 0 + }; + + ret_code_t err = HTS221_WRITE(p_instance, send_msg); + if (err != NRF_SUCCESS) + { + return err; + } + + return nrf_twi_sensor_reg_read(p_instance->p_sensor_data, + p_instance->sensor_addr, + HTS221_REG_CALIBRATION | HTS221_INCR_REG_MASK, + hts221_init_cb, + (uint8_t *) &p_instance->calib_info, + HTS221_REG_CALIBRATION_NUM); +} + +ret_code_t hts221_avg_cfg(hts221_instance_t * p_instance, + hts221_temp_avg_samples_t temp_avg, + hts221_hum_avg_samples_t hum_avg) +{ + ASSERT(p_instance != NULL); + uint8_t reg_val = 0; + NRF_TWI_SENSOR_REG_SET(reg_val, HTS221_AVGT_MASK, HTS221_AVGT_POS, temp_avg); + NRF_TWI_SENSOR_REG_SET(reg_val, HTS221_AVGH_MASK, HTS221_AVGH_POS, hum_avg); + + uint8_t send_msg[] = { + HTS221_REG_AV_CONF, + reg_val + }; + + return HTS221_WRITE(p_instance, send_msg); +} + +ret_code_t hts221_data_rate_cfg(hts221_instance_t * p_instance, hts221_odr_t odr) +{ + ASSERT(p_instance != NULL); + NRF_TWI_SENSOR_REG_SET(p_instance->ctrl_reg1, HTS221_ODR_MASK, HTS221_ODR_POS, odr); + + uint8_t send_msg[] = { + HTS221_REG_CTRL_REG1, + p_instance->ctrl_reg1 + }; + + return HTS221_WRITE(p_instance, send_msg); +} + +ret_code_t hts221_pd_enable(hts221_instance_t * p_instance, bool enable) +{ + ASSERT(p_instance != NULL); + NRF_TWI_SENSOR_REG_SET(p_instance->ctrl_reg1, HTS221_PD_MASK, HTS221_PD_POS, enable); + uint8_t send_msg[] = { + HTS221_REG_CTRL_REG1, + p_instance->ctrl_reg1 + }; + + return HTS221_WRITE(p_instance, send_msg); +} + + + +ret_code_t hts221_boot(hts221_instance_t * p_instance) +{ + ASSERT(p_instance != NULL); + uint8_t reg_val = p_instance->ctrl_reg2; + NRF_TWI_SENSOR_REG_SET(reg_val, HTS221_BOOT_MASK, HTS221_BOOT_POS, 1); + uint8_t send_msg[] = { + HTS221_REG_CTRL_REG2, + reg_val + }; + + return HTS221_WRITE(p_instance, send_msg); +} + +ret_code_t hts221_heater_enable(hts221_instance_t * p_instance, bool enable) +{ + ASSERT(p_instance != NULL); + NRF_TWI_SENSOR_REG_SET(p_instance->ctrl_reg2, HTS221_HEATER_MASK, HTS221_HEATER_POS, enable); + + uint8_t send_msg[] = { + HTS221_REG_CTRL_REG2, + p_instance->ctrl_reg2 + }; + + return HTS221_WRITE(p_instance, send_msg); +} + +ret_code_t hts221_oneshot(hts221_instance_t * p_instance) +{ + ASSERT(p_instance != NULL); + uint8_t reg_val = p_instance->ctrl_reg2; + NRF_TWI_SENSOR_REG_SET(reg_val, HTS221_ONE_SHOT_MASK, HTS221_ONE_SHOT_POS, true); + uint8_t send_msg[] = { + HTS221_REG_CTRL_REG2, + reg_val + }; + + return HTS221_WRITE(p_instance, send_msg); +} + +ret_code_t hts221_drdy_pin_cfg(hts221_instance_t * p_instance, + bool active_low, + bool operation, + bool drdy_enable) +{ + ASSERT(p_instance != NULL); + uint8_t reg_val = 0; + NRF_TWI_SENSOR_REG_SET(reg_val, HTS221_DRDY_H_L_MASK, HTS221_DRDY_H_L_POS, active_low); + NRF_TWI_SENSOR_REG_SET(reg_val, HTS221_PP_OD_MASK, HTS221_PP_OD_POS, operation); + NRF_TWI_SENSOR_REG_SET(reg_val, HTS221_DRDY_EN_MASK, HTS221_DRDY_EN_POS, drdy_enable); + + uint8_t send_msg[] = { + HTS221_REG_CTRL_REG3, + reg_val + }; + + return HTS221_WRITE(p_instance, send_msg); +} + +ret_code_t hts221_temp_read(hts221_instance_t * p_instance, + hts221_data_callback_t user_callback, + int16_t * p_temp) +{ + ASSERT(p_instance != NULL); + return nrf_twi_sensor_reg_read(p_instance->p_sensor_data, + p_instance->sensor_addr, + HTS221_REG_TEMP_OUT_L | HTS221_INCR_REG_MASK, + (nrf_twi_sensor_reg_cb_t) user_callback, + (uint8_t *) p_temp, + 2); +} + +int16_t hts221_temp_process(hts221_instance_t * p_instance, int16_t raw_temp) +{ + ASSERT(p_instance != NULL); + int32_t y; + int32_t x0 = p_instance->calib_info.T0_OUT; + int32_t x1 = p_instance->calib_info.T1_OUT; + int32_t y0 = p_instance->calib_info.T0_degC_x8; + int32_t y1 = p_instance->calib_info.T1_degC_x8; + + y = ((y0 * (x1 - raw_temp)) + (y1 * (raw_temp - x0))) / (x1 - x0); + + return y; +} + +ret_code_t hts221_hum_read(hts221_instance_t * p_instance, + hts221_data_callback_t user_callback, + int16_t * p_hum) +{ + ASSERT(p_instance != NULL); + return nrf_twi_sensor_reg_read(p_instance->p_sensor_data, + p_instance->sensor_addr, + HTS221_REG_HUM_OUT_L | HTS221_INCR_REG_MASK, + (nrf_twi_sensor_reg_cb_t) user_callback, + (uint8_t *) p_hum, + 2); +} + +int16_t hts221_hum_process(hts221_instance_t * p_instance, int16_t raw_hum) +{ + ASSERT(p_instance != NULL); + int32_t y; + int32_t x0 = p_instance->calib_info.H0_T0_OUT; + int32_t x1 = p_instance->calib_info.H1_T0_OUT; + int32_t y0 = p_instance->calib_info.H0_rH_x2; + int32_t y1 = p_instance->calib_info.H1_rH_x2; + + y = ((y0 * (x1 - raw_hum)) + (y1 * (raw_hum - x0))) / (x1 - x0); + + return y; +} + + |