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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
* Copyright (C) 2016 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 SUPERIO_ITE_ENV_CTRL_CHIP_H
#define SUPERIO_ITE_ENV_CTRL_CHIP_H
#define ITE_EC_TMPIN_CNT 3
#define ITE_EC_FAN_CNT 3
/* Supported thermal mode on TMPINx */
enum ite_ec_thermal_mode {
THERMAL_MODE_DISABLED = 0,
THERMAL_DIODE,
THERMAL_RESISTOR,
};
struct ite_ec_thermal_config {
enum ite_ec_thermal_mode mode;
/* Offset is used for diode sensors and PECI */
u8 offset;
};
/* Bit mask for voltage pins VINx */
enum ite_ec_voltage_pin {
VIN0 = 0x01,
VIN1 = 0x02,
VIN2 = 0x04,
VIN3 = 0x08,
VIN4 = 0x10,
VIN5 = 0x20,
VIN6 = 0x40,
VIN7 = 0x80,
VIN_ALL = 0xff
};
enum ite_ec_fan_mode {
FAN_IGNORE = 0,
FAN_MODE_ON,
FAN_MODE_OFF,
FAN_SMART_SOFTWARE,
FAN_SMART_AUTOMATIC,
};
struct ite_ec_fan_smartconfig {
u8 tmpin; /* select TMPINx (1, 2 or 3) */
u8 tmp_off; /* turn fan off below (°C) */
u8 tmp_start; /* turn fan on above (°C) */
u8 tmp_full; /* 100% duty cycle above (°C) */
u8 tmp_delta; /* adapt fan speed when temperature
changed by at least `tmp_delta`°C */
u8 smoothing; /* enable smoothing */
u8 pwm_start; /* start at this duty cycle (%) */
u8 slope; /* increase duty cycle by `slope`%/°C */
};
struct ite_ec_fan_config {
enum ite_ec_fan_mode mode;
struct ite_ec_fan_smartconfig smart;
};
struct ite_ec_config {
/*
* Enable external temperature sensor to use PECI GetTemp()
* command and store in register TMPIN 1, 2, or 3.
*/
u8 peci_tmpin;
/*
* Enable reading of voltage pins VINx.
*/
enum ite_ec_voltage_pin vin_mask;
/*
* Enable temperature sensors in given mode.
*/
struct ite_ec_thermal_config tmpin[ITE_EC_TMPIN_CNT];
/*
* Enable a FAN in given mode.
*/
struct ite_ec_fan_config fan[ITE_EC_FAN_CNT];
/* FIXME: enable beep when exceeding TMPIN, VIN, FAN limits */
};
/* Some shorthands for device trees */
#define TMPIN1 ec.tmpin[0]
#define TMPIN2 ec.tmpin[1]
#define TMPIN3 ec.tmpin[2]
#define FAN1 ec.fan[0]
#define FAN2 ec.fan[1]
#define FAN3 ec.fan[2]
#endif /* SUPERIO_ITE_ENV_CTRL_CHIP_H */
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