1 /* $NetBSD: bmx280var.h,v 1.1 2022/12/03 01:04:43 brad Exp $ */ 2 3 /* 4 * Copyright (c) 2022 Brad Spencer <brad@anduin.eldar.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef _DEV_IC_BMX280VAR_H_ 20 #define _DEV_IC_BMX280VAR_H_ 21 22 #define BMX280_NUM_SENSORS 3 23 #define BMX280_TEMP_SENSOR 0 24 #define BMX280_PRESSURE_SENSOR 1 25 #define BMX280_HUMIDITY_SENSOR 2 26 27 struct bmx280_calibration_blob { 28 uint16_t dig_T1; 29 int16_t dig_T2; 30 int16_t dig_T3; 31 32 uint16_t dig_P1; 33 int16_t dig_P2; 34 int16_t dig_P3; 35 int16_t dig_P4; 36 int16_t dig_P5; 37 int16_t dig_P6; 38 int16_t dig_P7; 39 int16_t dig_P8; 40 int16_t dig_P9; 41 uint8_t dig_H1; 42 int16_t dig_H2; 43 uint8_t dig_H3; 44 int16_t dig_H4; 45 int16_t dig_H5; 46 int8_t dig_H6; 47 }; 48 49 struct bmx280_sc { 50 int sc_bmx280debug; 51 device_t sc_dev; 52 i2c_tag_t sc_tag; 53 i2c_addr_t sc_addr; 54 struct spi_handle *sc_sh; 55 kmutex_t sc_mutex; 56 int sc_numsensors; 57 struct sysmon_envsys *sc_sme; 58 struct sysctllog *sc_bmx280log; 59 envsys_data_t sc_sensors[BMX280_NUM_SENSORS]; 60 struct bmx280_calibration_blob sc_cal_blob; 61 bool sc_has_humidity; 62 int sc_readattempts; 63 int sc_osrs_t; 64 int sc_osrs_p; 65 int sc_osrs_h; 66 int sc_irr_samples; 67 uint8_t sc_previous_irr; 68 bool sc_bmx280dump; 69 int sc_waitfactor_t; 70 int sc_waitfactor_p; 71 int sc_waitfactor_h; 72 void (*sc_func_attach)(struct bmx280_sc *); 73 int (*sc_func_acquire_bus)(struct bmx280_sc *); 74 void (*sc_func_release_bus)(struct bmx280_sc *); 75 int (*sc_func_read_register)(struct bmx280_sc *, uint8_t, uint8_t *, size_t); 76 int (*sc_func_write_register)(struct bmx280_sc *, uint8_t *, size_t); 77 }; 78 79 struct bmx280_sensor { 80 const char *desc; 81 enum envsys_units type; 82 }; 83 84 struct bmx280_osrs_list { 85 const int text; 86 uint8_t mask; 87 }; 88 89 struct bmx280_irr_list { 90 const int text; 91 uint8_t mask; 92 }; 93 94 #endif 95