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/*
* This file is part of the coreboot project.
*
* Copyright 2017 secunet Security Networks AG
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef DRIVERS_I2C_NCT7802Y_CHIP_H
#define DRIVERS_I2C_NCT7802Y_CHIP_H
#include <stdint.h>
#define NCT7802Y_PECI_CNT 2
#define NCT7802Y_FAN_CNT 3
enum nct7802y_peci_mode {
PECI_DISABLED = 0,
PECI_DOMAIN_0,
PECI_DOMAIN_1,
PECI_HIGHEST,
};
struct nct7802y_peci_config {
enum nct7802y_peci_mode mode;
u8 base_temp;
};
enum nct7802y_fan_mode {
FAN_IGNORE = 0,
FAN_MANUAL,
FAN_SMART,
};
enum nct7802y_fan_smartmode {
SMART_FAN_DUTY = 0, /* Target values given in duty cycle %. */
SMART_FAN_RPM, /* Target valuse given in RPM. */
};
enum nct7802y_fan_speed {
FAN_SPEED_NORMAL = 0, /* RPM values <= 12,750. */
FAN_SPPED_HIGHSPEED, /* RPM values <= 25,500. */
};
enum nct7802y_fan_pecierror {
PECI_ERROR_KEEP = 0, /* Keep current value. */
PECI_ERROR_VALUE, /* Use `pecierror_minduty`. */
PECI_ERROR_FULLSPEED, /* Run PWM at 100% duty cycle. */
};
enum nct7802y_temp_source {
TEMP_SOURCE_REMOTE_1 = 0,
TEMP_SOURCE_REMOTE_2,
TEMP_SOURCE_REMOTE_3,
TEMP_SOURCE_LOCAL,
TEMP_SOURCE_PECI_0,
TEMP_SOURCE_PECI_1,
TEMP_SOURCE_PROGRAMMABLE_0,
TEMP_SOURCE_PROGRAMMABLE_1,
};
struct nct7802y_fan_smartconfig {
enum nct7802y_fan_smartmode mode;
enum nct7802y_fan_speed speed;
enum nct7802y_temp_source tempsrc;
struct {
u8 temp;
u16 target;
} table[4];
u8 critical_temp;
};
struct nct7802y_fan_config {
enum nct7802y_fan_mode mode;
union {
u8 duty_cycle;
struct nct7802y_fan_smartconfig smart;
};
};
/* Implements only those parts currently used by coreboot mainboards. */
struct drivers_i2c_nct7802y_config {
struct nct7802y_peci_config peci[NCT7802Y_PECI_CNT];
struct nct7802y_fan_config fan[NCT7802Y_FAN_CNT];
enum nct7802y_fan_pecierror on_pecierror;
u8 pecierror_minduty;
};
#endif /* DRIVERS_I2C_NCT7802Y_CHIP_H */
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