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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "fan.h"
#include "host_command.h"
#include "temp_sensor.h"
#include "thermal.h"
#include "util.h"
static int fan_control[FAN_CH_COUNT];
void fan_set_percent(int fan, int pct)
{
int actual_rpm;
int new_rpm;
const int min_rpm = fans[fan].rpm->rpm_min * 9 / 10;
new_rpm = fan_percent_to_rpm(fan, pct);
actual_rpm = fan_get_rpm_actual(FAN_CH(fan));
if (new_rpm &&
actual_rpm < min_rpm &&
new_rpm < fans[fan].rpm->rpm_start)
new_rpm = fans[fan].rpm->rpm_start;
fan_set_rpm_target(FAN_CH(fan), new_rpm);
}
void board_override_fan_control(int fan, int *tmp)
{
int i, f;
int fmax = 0;
int temp_fan_configured = 0;
for (i = 0; i < TEMP_SENSOR_COUNT; ++i) {
tmp[i] = C_TO_K(tmp[i]);
/* figure out the max fan needed */
if (thermal_params[i].temp_fan_off &&
thermal_params[i].temp_fan_max) {
f = thermal_fan_percent(thermal_params[i].temp_fan_off,
thermal_params[i].temp_fan_max,
tmp[i]);
if (i == TEMP_GPU)
fan_control[FAN_CH_1] = f;
else {
if (f > fmax) {
fan_control[FAN_CH_0] = f;
fmax = f;
} else
fan_control[FAN_CH_0] = fmax;
}
temp_fan_configured = 1;
}
}
/* transfer percent to rpm */
if (temp_fan_configured)
fan_set_percent(fan, fan_control[fan]);
}
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