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