1 /* $NetBSD: hytp14var.h,v 1.4 2016/07/03 12:26:55 kardel Exp $ */ 2 3 /*- 4 * Copyright (c) 2014,2016 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank Kardel. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * IST-AG P14 calibrated Hygro-/Temperature sensor module 34 * Devices: HYT-271, HYT-221 and HYT-939 35 * 36 * see: 37 * http://www.ist-ag.com/eh/ist-ag/resource.nsf/imgref/Download_AHHYTM_E2.1.pdf/ 38 * $FILE/AHHYTM_E2.1.pdf 39 */ 40 #ifndef _DEV_I2C_HYTP14VAR_H_ 41 #define _DEV_I2C_HYTP14VAR_H_ 42 43 #define HYTP14_DEFAULT_ADDR 0x28 44 45 #define HYTP14_NUM_SENSORS 2 46 47 /* the default measurement interval is 50 seconds */ 48 #define HYTP14_MR_INTERVAL 50 49 50 #define HYTP14_THR_INIT 0 51 #define HYTP14_THR_RUN 1 52 #define HYTP14_THR_STOP 2 53 54 struct hytp14_sc { 55 device_t sc_dev; 56 i2c_tag_t sc_tag; 57 i2c_addr_t sc_addr; 58 59 kmutex_t sc_mutex; 60 kcondvar_t sc_condvar; 61 struct lwp *sc_thread; /* measurement poll thread */ 62 int sc_state; /* thread communication */ 63 64 int sc_valid; /* ENVSYS validity state for this sensor */ 65 uint8_t sc_data[4]; /* current sensor data */ 66 uint8_t sc_last[4]; /* last sensor data, before MR */ 67 68 int sc_numsensors; 69 70 int32_t sc_mrinterval; 71 72 struct sysmon_envsys *sc_sme; 73 envsys_data_t sc_sensors[HYTP14_NUM_SENSORS]; 74 }; 75 76 struct hytp14_sensor { 77 const char *desc; 78 enum envsys_units type; 79 void (*refresh)(struct hytp14_sc *, envsys_data_t *); 80 }; 81 82 #endif 83