/*      $NetBSD: emcfanvar.h,v 1.1 2025/03/11 13:56:46 brad Exp $       */

/*
* Copyright (c) 2025 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_EMCFANVAR_H_
#define _DEV_I2C_EMCFANVAR_H_

#include <sys/gpio.h>
#include <dev/gpio/gpiovar.h>

#define EMCFAN_NUM_FANS 5
#define EMCFAN_NUM_SENSORS 8 /* Up to 5 tachs, or 8 temperature zones (1 internal, 4 external,
                             * 1 VIN4) and 2 tachs and some combos in between.
                             */

struct emcfan_sc;

#define EMCFAN_INTERNAL_TEMP 0x01
#define EMCFAN_VIN4_TEMP 0x02
#define EMCFAN_MAX_PINS 6

/* This supplements the envsys_data_t structure stored in the sc. */

struct emcfan_sensor_instance {
       uint8_t sc_i_flags;
       int     sc_i_member;
       int     sc_i_envnum;
};

struct emcfan_sc {
       int             sc_emcfandebug;
       struct sysctllog *sc_emcfanlog;
       device_t        sc_dev;
       i2c_tag_t       sc_tag;
       i2c_addr_t      sc_addr;
       int             sc_info_index;
       bool            sc_dying;
       bool            sc_opened;
       kmutex_t        sc_mutex;
       struct sysmon_envsys *sc_sme;
       int             sc_ftach;
       bool            sc_vin4_temp;
       int             sc_num_poles[EMCFAN_NUM_FANS];
       struct emcfan_sensor_instance sc_sensor_instances[EMCFAN_NUM_SENSORS];
       envsys_data_t           sc_sensors[EMCFAN_NUM_SENSORS];
       device_t                sc_gpio_dev;
       struct gpio_chipset_tag sc_gpio_gc;
       gpio_pin_t              sc_gpio_pins[EMCFAN_MAX_PINS];
};

#endif