1 /* 2 * Copyright (c) 2018 Jan Van Winkel <jan.van_winkel@dxplore.eu> 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef __SENSOR_MS5837_H__ 8 #define __SENSOR_MS5837_H__ 9 10 #include <zephyr/types.h> 11 #include <zephyr/device.h> 12 #include <zephyr/drivers/i2c.h> 13 14 #define MS5837_CMD_RESET 0x1E 15 16 #define MS5837_CMD_CONV_P_256 0x40 17 #define MS5837_CMD_CONV_P_512 0x42 18 #define MS5837_CMD_CONV_P_1024 0x44 19 #define MS5837_CMD_CONV_P_2048 0x46 20 #define MS5837_CMD_CONV_P_4096 0x48 21 #define MS5837_CMD_CONV_P_8192 0x4A 22 23 #define MS5837_CMD_CONV_T_256 0x50 24 #define MS5837_CMD_CONV_T_512 0x52 25 #define MS5837_CMD_CONV_T_1024 0x54 26 #define MS5837_CMD_CONV_T_2048 0x56 27 #define MS5837_CMD_CONV_T_4096 0x58 28 #define MS5837_CMD_CONV_T_8192 0x5A 29 30 #define MS5837_CMD_CONV_READ_ADC 0x00 31 32 #define MS5837_CMD_CONV_READ_CRC 0xA0 33 #define MS5837_CMD_CONV_READ_SENS_T1 0xA2 34 #define MS5837_CMD_CONV_READ_OFF_T1 0xA4 35 #define MS5837_CMD_CONV_READ_TCS 0xA6 36 #define MS5837_CMD_CONV_READ_TCO 0xA8 37 #define MS5837_CMD_CONV_READ_T_REF 0xAA 38 #define MS5837_CMD_CONV_READ_TEMPSENS 0xAC 39 40 #define MS5837_ADC_READ_DELAY_256 1 41 #define MS5837_ADC_READ_DELAY_512 2 42 #define MS5837_ADC_READ_DELAY_1024 3 43 #define MS5837_ADC_READ_DELAY_2048 5 44 #define MS5837_ADC_READ_DELAY_4086 10 45 #define MS5837_ADC_READ_DELAY_8129 20 46 47 enum ms5837_type { 48 MS5837_02BA01 = 0x00, 49 MS5837_02BA21 = 0x15, 50 MS5837_30BA26 = 0x1A 51 }; 52 53 typedef void (*ms5837_compensate_func)(const struct device *dev, 54 const int32_t adc_temperature, 55 const int32_t adc_pressure); 56 57 struct ms5837_data { 58 /* Calibration values */ 59 uint16_t factory; 60 uint16_t sens_t1; 61 uint16_t off_t1; 62 uint16_t tcs; 63 uint16_t tco; 64 uint16_t t_ref; 65 uint16_t tempsens; 66 67 /* Measured values */ 68 int32_t pressure; 69 int32_t temperature; 70 71 /* Conversion commands */ 72 uint8_t presure_conv_cmd; 73 uint8_t temperature_conv_cmd; 74 75 /* Conversion delay in ms*/ 76 uint8_t presure_conv_delay; 77 uint8_t temperature_conv_delay; 78 79 ms5837_compensate_func comp_func; 80 }; 81 82 struct ms5837_config { 83 struct i2c_dt_spec i2c; 84 }; 85 86 #endif /* __SENSOR_MS5837_H__ */ 87
