/*      $NetBSD: sht4xvar.h,v 1.1 2021/10/03 17:27:02 brad Exp $        */

/*
 * Copyright (c) 2021 Brad Spencer <brad@anduin.eldar.org>
 *
 * 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_SHT4XVAR_H_
#define _DEV_I2C_SHT4XVAR_H_

#define SHT4X_NUM_SENSORS       2
#define SHT4X_HUMIDITY_SENSOR 0
#define SHT4X_TEMP_SENSOR 1

#define SHT4X_RES_NAME 7
#define SHT4X_PULSE_NAME 6

struct sht4x_sc {
        int             sc_sht4xdebug;
        device_t        sc_dev;
        i2c_tag_t       sc_tag;
        i2c_addr_t      sc_addr;
        kmutex_t        sc_mutex;
        int             sc_numsensors;
        struct sysmon_envsys *sc_sme;
        struct sysctllog *sc_sht4xlog;
        envsys_data_t   sc_sensors[SHT4X_NUM_SENSORS];
        bool            sc_ignorecrc;
        char            sc_resolution[SHT4X_RES_NAME];
        int             sc_readattempts;
        bool            sc_heateron;
        int             sc_heaterval;
        char            sc_heaterpulse[SHT4X_PULSE_NAME];
};

struct sht4x_sensor {
        const char     *desc;
        enum envsys_units type;
};

struct sht4x_timing {
        uint8_t cmd;
        int     typicaldelay;
};

struct sht4x_resolution {
        const char     *text;
        uint8_t        cmd;
};

struct sht4x_heaterpulse {
        const char     *length;
};

struct sht4x_heateron_command {
        int            heatervalue;
        const char     *pulselength;
        uint8_t        cmd;
};

#endif