plat_fan.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef PLAT_FAN_H
#define PLAT_FAN_H
 
#define MAX_FAN_DUTY_VALUE 100
#define DEFAULT_FAN_DUTY_VALUE 70
#define MAX_FAN_PWM_INDEX_COUNT 4
 
#define INDEX_ALL_PWM 0xFF
 
#define PWM_DEVICE_NAME "PWM"
 
enum fan_mode_ctrl_cmd {
    FAN_SET_MANUAL_MODE = 0x00,
    FAN_SET_AUTO_MODE = 0x01,
    FAN_GET_MODE = 0x02,
};
 
enum fan_mode {
    FAN_MANUAL_MODE = 0x00,
    FAN_AUTO_MODE = 0x01,
};
 
void init_fan_mode();
void init_fan_duty();
int pal_get_fan_ctrl_mode(uint8_t *ctrl_mode);
void pal_set_fan_ctrl_mode(uint8_t ctrl_mode);
int pal_get_fan_rpm(uint8_t fan_id, uint16_t *rpm);
int pal_get_fan_duty(uint8_t pwm_id, uint8_t *duty, uint8_t slot_index);
int pal_set_fan_duty(uint8_t pwm_id, uint8_t duty, uint8_t slot_index);
 
#endif