4  * SPDX-License-Identifier: Apache-2.0
61 /* ambient temperature measurement command for each mode.
62  * (Section 5.2 MEASUREMENT COMMANDS in the Datasheet)
68 /* pressure measurement command for each mode.
69  * (Section 5.2 MEASUREMENT COMMANDS in the Datasheet)
76  * (Section 5.2 MEASUREMENT COMMANDS in the Datasheet)
110 	*C = (p_LUT[0] * p_LUT[1] * (p_Pa[0] - p_Pa[1]) +  in icp10125_calculate_conversion_constants()
111 	      p_LUT[1] * p_LUT[2] * (p_Pa[1] - p_Pa[2]) +  in icp10125_calculate_conversion_constants()
112 	      p_LUT[2] * p_LUT[0] * (p_Pa[2] - p_Pa[0])) /  in icp10125_calculate_conversion_constants()
113 	     (p_LUT[2] * (p_Pa[0] - p_Pa[1]) + p_LUT[0] * (p_Pa[1] - p_Pa[2]) +  in icp10125_calculate_conversion_constants()
114 	      p_LUT[1] * (p_Pa[2] - p_Pa[0]));  in icp10125_calculate_conversion_constants()
115 	*A = (p_Pa[0] * p_LUT[0] - p_Pa[1] * p_LUT[1] - (p_Pa[1] - p_Pa[0]) * (*C)) /  in icp10125_calculate_conversion_constants()
116 	     (p_LUT[0] - p_LUT[1]);  in icp10125_calculate_conversion_constants()
117 	*B = (p_Pa[0] - (*A)) * (p_LUT[0] + (*C));  in icp10125_calculate_conversion_constants()
122 	return -45.f + 175.f / 65536.f * data->raw_ambient_temp;  in icp10125_calc_calibrated_ambient_temp()
135 	t = data->raw_ambient_temp - 32768.f;  in icp10125_calc_calibrated_press()
136 	in[0] = LUT_lower + (data->sensor_constants[0] * t * t) * quadr_factor;  in icp10125_calc_calibrated_press()
137 	in[1] = offst_factor * data->sensor_constants[3] +  in icp10125_calc_calibrated_press()
138 		(data->sensor_constants[1] * t * t) * quadr_factor;  in icp10125_calc_calibrated_press()
139 	in[2] = LUT_upper + (data->sensor_constants[2] * t * t) * quadr_factor;  in icp10125_calc_calibrated_press()
142 	return A + B / (C + data->raw_press);  in icp10125_calc_calibrated_press()
149 	struct icp10125_data *data = dev->data;  in icp10125_read_otp()
152 	const struct icp10125_dev_config *cfg = dev->config;  in icp10125_read_otp()
155 	rc = i2c_write_dt(&cfg->i2c, (uint8_t *)&otp_read_setup, sizeof(otp_read_setup));  in icp10125_read_otp()
161 	for (size_t i = 0; i < ARRAY_SIZE(data->sensor_constants); i++) {  in icp10125_read_otp()
162 		rc = i2c_write_dt(&cfg->i2c, (uint8_t *)&otp_read_request_cmd,  in icp10125_read_otp()
169 		rc = i2c_read_dt(&cfg->i2c, (uint8_t *)&sensor_data, sizeof(sensor_data));  in icp10125_read_otp()
175 		data->sensor_constants[i] = sys_get_be16(sensor_data.data);  in icp10125_read_otp()
192 			    const uint8_t mode, struct icp10125_sensor_data *sensor_data,  in icp10125_measure()  argument
197 	rc = i2c_write_dt(i2c, (uint8_t *)&cmds[mode], sizeof(cmds[mode]));  in icp10125_measure()
199 		LOG_ERR("Failed to start measurement.\n");  in icp10125_measure()
207 	k_sleep(K_USEC(conv_time_typ[mode]));  in icp10125_measure()
209 		k_sleep(K_USEC(conv_time_max[mode] - conv_time_typ[mode]));  in icp10125_measure()
212 			LOG_ERR("Failed to read measurement.\n");  in icp10125_measure()
222 			return -EIO;  in icp10125_measure()
232 	struct icp10125_data *data = dev->data;  in icp10125_sample_fetch()
233 	const struct icp10125_dev_config *cfg = dev->config;  in icp10125_sample_fetch()
240 		return -ENOTSUP;  in icp10125_sample_fetch()
244 		rc = icp10125_measure(&cfg->i2c, ambient_temp_measurement_cmds,  in icp10125_sample_fetch()
245 				      cfg->ambient_temp_mode, sensor_data, AMBIENT_TEMP_DATA_NUM);  in icp10125_sample_fetch()
250 		data->raw_ambient_temp = sys_get_be16(sensor_data[0].data);  in icp10125_sample_fetch()
252 		rc = icp10125_measure(&cfg->i2c, press_measurement_cmds, cfg->press_mode,  in icp10125_sample_fetch()
261 		data->raw_press = sys_get_be24(endian_conversion);  in icp10125_sample_fetch()
262 		data->raw_ambient_temp = sys_get_be16(sensor_data[2].data);  in icp10125_sample_fetch()
282 	struct icp10125_data *data = dev->data;  in icp10125_channel_get()
289 		return -ENOTSUP;  in icp10125_channel_get()