1 /* $NetBSD: sht4xvar.h,v 1.1 2021/10/03 17:27:02 brad Exp $ */ 2 3 /* 4 * Copyright (c) 2021 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_I2C_SHT4XVAR_H_ 20 #define _DEV_I2C_SHT4XVAR_H_ 21 22 #define SHT4X_NUM_SENSORS 2 23 #define SHT4X_HUMIDITY_SENSOR 0 24 #define SHT4X_TEMP_SENSOR 1 25 26 #define SHT4X_RES_NAME 7 27 #define SHT4X_PULSE_NAME 6 28 29 struct sht4x_sc { 30 int sc_sht4xdebug; 31 device_t sc_dev; 32 i2c_tag_t sc_tag; 33 i2c_addr_t sc_addr; 34 kmutex_t sc_mutex; 35 int sc_numsensors; 36 struct sysmon_envsys *sc_sme; 37 struct sysctllog *sc_sht4xlog; 38 envsys_data_t sc_sensors[SHT4X_NUM_SENSORS]; 39 bool sc_ignorecrc; 40 char sc_resolution[SHT4X_RES_NAME]; 41 int sc_readattempts; 42 bool sc_heateron; 43 int sc_heaterval; 44 char sc_heaterpulse[SHT4X_PULSE_NAME]; 45 }; 46 47 struct sht4x_sensor { 48 const char *desc; 49 enum envsys_units type; 50 }; 51 52 struct sht4x_timing { 53 uint8_t cmd; 54 int typicaldelay; 55 }; 56 57 struct sht4x_resolution { 58 const char *text; 59 uint8_t cmd; 60 }; 61 62 struct sht4x_heaterpulse { 63 const char *length; 64 }; 65 66 struct sht4x_heateron_command { 67 int heatervalue; 68 const char *pulselength; 69 uint8_t cmd; 70 }; 71 72 #endif 73