83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/* $NetBSD: hytp14var.h,v 1.4 2016/07/03 12:26:55 kardel Exp $ */
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/*-
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* Copyright (c) 2014,2016 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Frank Kardel.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* IST-AG P14 calibrated Hygro-/Temperature sensor module
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* Devices: HYT-271, HYT-221 and HYT-939
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*
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* see:
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* http://www.ist-ag.com/eh/ist-ag/resource.nsf/imgref/Download_AHHYTM_E2.1.pdf/
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* $FILE/AHHYTM_E2.1.pdf
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*/
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#ifndef _DEV_I2C_HYTP14VAR_H_
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#define _DEV_I2C_HYTP14VAR_H_
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#define HYTP14_DEFAULT_ADDR 0x28
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#define HYTP14_NUM_SENSORS 2
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/* the default measurement interval is 50 seconds */
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#define HYTP14_MR_INTERVAL 50
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#define HYTP14_THR_INIT 0
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#define HYTP14_THR_RUN 1
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#define HYTP14_THR_STOP 2
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struct hytp14_sc {
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device_t sc_dev;
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i2c_tag_t sc_tag;
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i2c_addr_t sc_addr;
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kmutex_t sc_mutex;
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kcondvar_t sc_condvar;
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struct lwp *sc_thread; /* measurement poll thread */
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int sc_state; /* thread communication */
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int sc_valid; /* ENVSYS validity state for this sensor */
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uint8_t sc_data[4]; /* current sensor data */
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uint8_t sc_last[4]; /* last sensor data, before MR */
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int sc_numsensors;
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int32_t sc_mrinterval;
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struct sysmon_envsys *sc_sme;
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envsys_data_t sc_sensors[HYTP14_NUM_SENSORS];
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};
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struct hytp14_sensor {
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const char *desc;
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enum envsys_units type;
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void (*refresh)(struct hytp14_sc *, envsys_data_t *);
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};
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#endif
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