/* $NetBSD: sht3xvar.h,v 1.2 2025/01/23 19:14:46 brad 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_SHT3XVAR_H_
#define _DEV_I2C_SHT3XVAR_H_
#define SHT3X_NUM_SENSORS 2
#define SHT3X_HUMIDITY_SENSOR 0
#define SHT3X_TEMP_SENSOR 1
#define SHT3X_MODE_NAME 12
#define SHT3X_REP_NAME 7
#define SHT3X_RATE_NAME 8
struct sht3x_sc {
int sc_sht3xdebug;
device_t sc_dev;
i2c_tag_t sc_tag;
i2c_addr_t sc_addr;
kmutex_t sc_dying_mutex; /* for cleaning up */
kmutex_t sc_threadmutex; /* for the measurement kthread */
kmutex_t sc_mutex; /* for reading the i2c bus */
kmutex_t sc_read_mutex; /* for from the data queue */
kcondvar_t sc_condvar; /* for shutting down the thread */
kcondvar_t sc_condreadready; /* when there is data to be read */
kcondvar_t sc_cond_dying; /* interlock when cleaning up */
struct lwp *sc_thread;
int sc_numsensors;
struct sysmon_envsys *sc_sme;
struct sysctllog *sc_sht3xlog;
envsys_data_t sc_sensors[SHT3X_NUM_SENSORS];
bool sc_ignorecrc;
char sc_mode[SHT3X_MODE_NAME];
bool sc_isperiodic;
char sc_repeatability[SHT3X_REP_NAME];
char sc_periodic_rate[SHT3X_RATE_NAME];
int sc_readattempts;
bool sc_heateron;
bool sc_stopping;
bool sc_initperiodic;
uint8_t sc_pbuffer[6];
bool sc_dying;
bool sc_opened;
bool sc_wassingleshot;
bool sc_clockstretch;
pool_cache_t sc_readpool;
char *sc_readpoolname;
SIMPLEQ_HEAD(,sht3x_read_q) sc_read_queue;
};
struct sht3x_read_q {
uint8_t measurement[6];
SIMPLEQ_ENTRY(sht3x_read_q) read_q;
};
struct sht3x_sensor {
const char *desc;
enum envsys_units type;
};
struct sht3x_timing {
uint16_t cmd;
int typicaldelay;
};
struct sht3x_periodic {
const char *repeatability;
const char *rate;
int sdelay;
uint16_t cmd;
};
struct sht3x_repeatability {
const char *text;
uint16_t cmd;
uint16_t cscmd;
};
#endif
