93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
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/* $NetBSD: sht3xvar.h,v 1.1 2021/11/06 13:34:40 brad Exp $ */
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/*
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* Copyright (c) 2021 Brad Spencer <brad@anduin.eldar.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _DEV_I2C_SHT3XVAR_H_
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#define _DEV_I2C_SHT3XVAR_H_
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#define SHT3X_NUM_SENSORS 2
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#define SHT3X_HUMIDITY_SENSOR 0
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#define SHT3X_TEMP_SENSOR 1
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#define SHT3X_MODE_NAME 12
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#define SHT3X_REP_NAME 7
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#define SHT3X_RATE_NAME 8
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struct sht3x_sc {
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int sc_sht3xdebug;
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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_dying_mutex; /* for cleaning up */
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kmutex_t sc_threadmutex; /* for the measurement kthread */
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kmutex_t sc_mutex; /* for reading the i2c bus */
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kmutex_t sc_read_mutex; /* for from the data queue */
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kcondvar_t sc_condvar; /* for shutting down the thread */
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kcondvar_t sc_condreadready; /* when there is data to be read */
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kcondvar_t sc_cond_dying; /* interlock when cleaning up */
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struct lwp *sc_thread;
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int sc_numsensors;
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struct sysmon_envsys *sc_sme;
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struct sysctllog *sc_sht3xlog;
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envsys_data_t sc_sensors[SHT3X_NUM_SENSORS];
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bool sc_ignorecrc;
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char sc_mode[SHT3X_MODE_NAME];
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bool sc_isperiodic;
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char sc_repeatability[SHT3X_REP_NAME];
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char sc_periodic_rate[SHT3X_RATE_NAME];
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int sc_readattempts;
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bool sc_heateron;
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bool sc_stopping;
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bool sc_initperiodic;
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uint8_t sc_pbuffer[6];
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bool sc_dying;
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bool sc_opened;
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bool sc_wassingleshot;
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pool_cache_t sc_readpool;
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char *sc_readpoolname;
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SIMPLEQ_HEAD(,sht3x_read_q) sc_read_queue;
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};
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struct sht3x_read_q {
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uint8_t measurement[6];
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SIMPLEQ_ENTRY(sht3x_read_q) read_q;
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};
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struct sht3x_sensor {
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const char *desc;
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enum envsys_units type;
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};
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struct sht3x_timing {
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uint16_t cmd;
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int typicaldelay;
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};
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struct sht3x_periodic {
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const char *repeatability;
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const char *rate;
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int sdelay;
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uint16_t cmd;
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};
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struct sht3x_repeatability {
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const char *text;
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uint16_t cmd;
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};
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#endif
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