root/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/therm.h
/* SPDX-License-Identifier: MIT */
#ifndef __NVBIOS_THERM_H__
#define __NVBIOS_THERM_H__
struct nvbios_therm_threshold {
        u8 temp;
        u8 hysteresis;
};

struct nvbios_therm_sensor {
        /* diode */
        s16 slope_mult;
        s16 slope_div;
        s16 offset_num;
        s16 offset_den;
        s8 offset_constant;

        /* thresholds */
        struct nvbios_therm_threshold thrs_fan_boost;
        struct nvbios_therm_threshold thrs_down_clock;
        struct nvbios_therm_threshold thrs_critical;
        struct nvbios_therm_threshold thrs_shutdown;
};

enum nvbios_therm_fan_type {
        NVBIOS_THERM_FAN_UNK = 0,
        NVBIOS_THERM_FAN_TOGGLE = 1,
        NVBIOS_THERM_FAN_PWM = 2,
};

/* no vbios have more than 6 */
#define NVKM_TEMP_FAN_TRIP_MAX 10
struct nvbios_therm_trip_point {
        int fan_duty;
        int temp;
        int hysteresis;
};

enum nvbios_therm_fan_mode {
        NVBIOS_THERM_FAN_TRIP = 0,
        NVBIOS_THERM_FAN_LINEAR = 1,
        NVBIOS_THERM_FAN_OTHER = 2,
};

struct nvbios_therm_fan {
        enum nvbios_therm_fan_type type;

        u32 pwm_freq;

        u8 min_duty;
        u8 max_duty;

        u16 bump_period;
        u16 slow_down_period;

        enum nvbios_therm_fan_mode fan_mode;
        struct nvbios_therm_trip_point trip[NVKM_TEMP_FAN_TRIP_MAX];
        u8 nr_fan_trip;
        u8 linear_min_temp;
        u8 linear_max_temp;
};

enum nvbios_therm_domain {
        NVBIOS_THERM_DOMAIN_CORE,
        NVBIOS_THERM_DOMAIN_AMBIENT,
};

int
nvbios_therm_sensor_parse(struct nvkm_bios *, enum nvbios_therm_domain,
                          struct nvbios_therm_sensor *);

int
nvbios_therm_fan_parse(struct nvkm_bios *, struct nvbios_therm_fan *);
#endif