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hytp14var.h revision 1.2.4.2 
      1 /* $NetBSD: hytp14var.h,v 1.2.4.2 2014/08/20 00:03:37 tls Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2014 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 struct hytp14_sc {
     48 	device_t	sc_dev;
     49 	i2c_tag_t	sc_tag;
     50 	i2c_addr_t	sc_addr;
     51 
     52 	int		sc_refresh; /* last refresh from hardclock_ticks */
     53         int             sc_valid;   /* ENVSYS validity state for this sensor */
     54         uint8_t         sc_data[4]; /* last data read */
     55 
     56 	int		sc_numsensors;
     57 
     58 	struct sysmon_envsys *sc_sme;
     59 	envsys_data_t sc_sensors[HYTP14_NUM_SENSORS];
     60 };
     61 
     62 struct hytp14_sensor {
     63 	const char	  *desc;
     64 	enum envsys_units  type;
     65 	void		 (*refresh)(struct hytp14_sc *, envsys_data_t *);
     66 };
     67 
     68 #endif
     69 /*
     70  * $Log: hytp14var.h,v $
     71  * Revision 1.2.4.2  2014/08/20 00:03:37  tls
     72  * Rebase to HEAD as of a few days ago.
     73  *
     74  * Revision 1.2  2014/08/10 16:44:35  tls
     75  * Merge tls-earlyentropy branch into HEAD.
     76  *
     77  * Revision 1.1.4.2  2014/08/10 06:54:51  tls
     78  * Rebase.
     79  *
     80  * Revision 1.1  2014/05/18 11:46:23  kardel
     81  * add HYT-221/271/939 humidity/temperature I2C sensor
     82  * extend envsys(4) framework by %rH (relative humidity)
     83  *
     84  */
     85