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/* SPDX-License-Identifier: GPL-2.0-only */
/* This file is part of the coreboot project. */
#define FAN_INPUT_INTERNAL_DIODE 0
#define FAN_INPUT_TEMP0 1
#define FAN_INPUT_TEMP1 2
#define FAN_INPUT_TEMP2 3
#define FAN_INPUT_TEMP3 4
#define FAN_INPUT_TEMP0_FILTER 5
#define FAN_INPUT_ZERO 6
#define FAN_INPUT_DISABLED 7
#define FAN_AUTOMODE (1 << 0)
#define FAN_LINEARMODE (1 << 1)
#define FAN_STEPMODE ~(1 << 1)
#define FAN_POLARITY_HIGH (1 << 2)
#define FAN_POLARITY_LOW ~(1 << 2)
/* Normally, 4-wire fans runs at 25KHz and 3-wire fans runs at 100Hz */
#define FREQ_28KHZ 0x0
#define FREQ_25KHZ 0x1
#define FREQ_23KHZ 0x2
#define FREQ_21KHZ 0x3
#define FREQ_29KHZ 0x4
#define FREQ_18KHZ 0x5
#define FREQ_100HZ 0xF7
#define FREQ_87HZ 0xF8
#define FREQ_58HZ 0xF9
#define FREQ_44HZ 0xFA
#define FREQ_35HZ 0xFB
#define FREQ_29HZ 0xFC
#define FREQ_22HZ 0xFD
#define FREQ_14HZ 0xFE
#define FREQ_11HZ 0xFF
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