/* $NetBSD: hytp14reg.h,v 1.3 2016/12/12 15:58:44 maya Exp $ */
/*-
* Copyright (c) 2014 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_HYTP14REG_H_
#define _DEV_I2C_HYTP14REG_H_
#define HYTP14_DEFAULT_ADDR 0x28
#define HYTP14_CMD_START_NOM 0x80 /* end command mode (or power-off) */
#define HYTP14_CMD_START_CM 0xA0 /* start command mode (within 10ms after power-up) */
#define HYTP14_CMD_GET_REV 0xB0 /* get revison */
#define HYTP14_NUM_WORDS 32
#define HYTP14_READ_OFFSET 0x00 /* command offset to read EEPROM words */
#define HYTP14_WRITE_OFFSET 0x40 /* command offset to write EEPROM words */
#define HYTP14_READ_EEPROM(_X_) (HYTP14_READ_OFFSET + ((_X_) & (HYTP14_NUM_WORDS - 1)))
#define HYTP14_WRITE_EEPROM(_X_) (HYTP14_WRITE_OFFSET + ((_X_) & (HYTP14_NUM_WORDS - 1)))
#define HYTP14_EEADDR_I2CADDR 0x1C /* I2C address EEPROM word address */
#define HYTP14_RESP_CMDMODE 0x80 /* command mode response */
#define HYTP14_RESP_STALE 0x40 /* stale measurement data */
#define HYT_STATUS_FMT "\177\20b\7CM\0b\6STALE\0b\5ERR_CFG\0b\4ERR_RAM\0b\3ERR_UNCEEP\0"\
"b\2ERR_COREEP\0f\0\2RESP\0=\0BSY\0=\1ACK\0=\2NAK\0=\3INV\0\0"
#define HYTP14_DIAG_ERR_CFG 0x20 /* configuration error */
#define HYTP14_DIAG_ERR_RAMPRTY 0x10 /* RAM parity error */
#define HYTP14_DIAG_ERR_UNCEEP 0x08 /* uncorrectable EEPROM error */
#define HYTP14_DIAG_ERR_COREEP 0x04 /* correctable EEPROM error */
#define HYTP14_RESP_MASK 0x03
#define HYTP14_RESP_BUSY 0x00 /* device is busy */
#define HYTP14_RESP_ACK 0x01 /* positive acknowledge */
#define HYTP14_RESP_NACK 0x02 /* negative acknowledge */
#define HYTP14_ST_CMDMODE 0x8000 /* command mode */
#define HYTP14_ST_STALE 0x4000 /* stale measurement data */
#define HYTP14_HYG_RAWVAL(_X_) ((_X_) & 0x3FFF)
#define HYTP14_HYG_SCALE (1<<14)
#define HYTP14_TEMP_RAWVAL(_X_) (((_X_) >> 2) & 0x3FFF)
#define HYTP14_TEMP_SCALE (1<<14)
#define HYTP14_TEMP_FACTOR 165
#define HYTP14_TEMP_OFFSET (-40)
#endif
