/* $NetBSD: sht3xreg.h,v 1.4 2024/02/02 22:39:10 andvar Exp $ */
/*
* Copyright (c) 2021 Brad Spencer <
[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _DEV_I2C_SHT3XREG_H_
#define _DEV_I2C_SHT3XREG_H_
#define SHT3X_TYPICAL_ADDR_1 0x44
#define SHT3X_TYPICAL_ADDR_2 0x45
/* Measurement repeatability and clock steatching
* for single shot measurement command
*/
#define SHT3X_MEASURE_REPEATABILITY_CS_HIGH 0x2C06
#define SHT3X_MEASURE_REPEATABILITY_CS_MEDIUM 0x2C0D
#define SHT3X_MEASURE_REPEATABILITY_CS_LOW 0x2C10
#define SHT3X_MEASURE_REPEATABILITY_NOCS_HIGH 0x2400
#define SHT3X_MEASURE_REPEATABILITY_NOCS_MEDIUM 0x240B
#define SHT3X_MEASURE_REPEATABILITY_NOCS_LOW 0x2416
/* Periodic measurements ... .5 mps, 1 mps, 2 mps, 4 mps
* and 10 mps at various repeatability. One sets up the
* desired mps and repeatability and then calls fetch data
* to get the data back at the specified period rate
*/
#define SHT3X_HALF_MPS_HIGH 0x2032
#define SHT3X_HALF_MPS_MEDIUM 0x2024
#define SHT3X_HALF_MPS_LOW 0x202F
#define SHT3X_ONE_MPS_HIGH 0x2130
#define SHT3X_ONE_MPS_MEDIUM 0x2126
#define SHT3X_ONE_MPS_LOW 0x212D
#define SHT3X_TWO_MPS_HIGH 0x2236
#define SHT3X_TWO_MPS_MEDIUM 0x2220
#define SHT3X_TWO_MPS_LOW 0x222B
#define SHT3X_FOUR_MPS_HIGH 0x2334
#define SHT3X_FOUR_MPS_MEDIUM 0x2322
#define SHT3X_FOUR_MPS_LOW 0x2329
#define SHT3X_TEN_MPS_HIGH 0x2737
#define SHT3X_TEN_MPS_MEDIUM 0x2721
#define SHT3X_TEN_MPS_LOW 0x272A
#define SHT3X_PERIODIC_FETCH_DATA 0xE000
/* ART, accelerated response time. A method of getting periodic
* measurements at 4Hz
*/
#define SHT3X_ART_ENABLE 0x2B32
/* Break command or stop periodic measurement */
#define SHT3X_BREAK 0x3093
/* The heater */
#define SHT3X_HEATER_ENABLE 0x306D
#define SHT3X_HEATER_DISABLE 0x3066
/* status register */
#define SHT3X_GET_STATUS_REGISTER 0xF32D
#define SHT3X_CLEAR_STATUS_REGISTER 0x3041
/* the bits */
#define SHT3X_ALERT_PENDING 0x8000
#define SHT3X_HEATER_STATUS 0x2000
#define SHT3X_RH_TRACKING_ALERT 0x0800
#define SHT3X_TEMP_TRACKING_ALERT 0x0400
#define SHT3X_RESET_DETECTED 0x0010
#define SHT3X_LAST_COMMAND_STATUS 0x0002
#define SHT3X_WRITE_DATA_CHECKSUM 0x0001
/* Alert mode */
/* This is not supported by the sht3xtemp driver as
the information in the datasheet was not enough to
get it working. A read of the registers appears to
function just fine, but writes do not do anything, and
the chip does not indicate any errors occurred.
*/
#define SHT3X_READ_HIGH_ALERT_SET 0xE11F
#define SHT3X_READ_HIGH_ALERT_CLEAR 0xE114
#define SHT3X_READ_LOW_ALERT_SET 0xE102
#define SHT3X_READ_LOW_ALERT_CLEAR 0xE109
#define SHT3X_WRITE_HIGH_ALERT_SET 0x611D
#define SHT3X_WRITE_HIGH_ALERT_CLEAR 0x6116
#define SHT3X_WRITE_LOW_ALERT_SET 0x6100
#define SHT3X_WRITE_LOW_ALERT_CLEAR 0x610B
/* Other commands */
#define SHT3X_SOFT_RESET 0x30A2
/* this is not documented in the datasheet, but is present in a
* lot of example code
*/
#define SHT3X_READ_SERIAL_NUMBER 0x3780
/* this is also not defined in the datasheet, but is present in some
* example code. There are, however, no examples of its use.
*/
#define SHT3X_NO_SLEEP 0x303E
#endif
