distribution/projects/Rockchip/packages/system-utils/sources/scripts/fancontrol

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#!/bin/bash
# SPDX-License-Identifier: Apache-2.0
# Copyright (C) 2021-present Fewtarius (https://github.com/fewtarius)
. /etc/profile
DEBUG=false
COOLING_PROFILE=$(get_setting "cooling.profile")
FAN_PWM="${DEVICE_PWM_FAN}"
$DEBUG && echo "Setting profile to ${COOLING_PROFILE}"
if [ -e "/storage/.config/fancontrol.conf" ] && [ "${COOLING_PROFILE}" = "custom" ]
then
$DEBUG && echo "Loading configuration file" 2>/dev/null
source /storage/.config/fancontrol.conf
if [ ! $? = 0 ]
then
WARN="Custom fan profile could not be loaded, defaulting to quiet."
$DEBUG && echo "${WARN}"
logger -t fancontrol "${WARN}"
COOLING_PROFILE="quiet"
set_setting cooling.profile quiet
fi
fi
if [ ! "${COOLING_PROFILE}" = "custom" ]
then
if [ "${COOLING_PROFILE}" = "aggressive" ]
then
SPEEDS=(255 225 195)
TEMPS=(55000 45000 0)
elif [ "${COOLING_PROFILE}" = "moderate" ]
then
SPEEDS=(255 190 125 85)
TEMPS=(65000 55000 45000 0)
else
# Quiet.
SPEEDS=(255 127 85 0)
TEMPS=(75000 65000 55000 0)
fi
fi
while true
do
INDEX=0
CPU_TEMP=$(printf "%.0f" $(cat /sys/devices/virtual/thermal/thermal_zone*/temp | awk '{ total += $1; count++ } END { print total/count }'))
$DEBUG && echo "CPU TEMP: ${CPU_TEMP}" 2>/dev/null
for TEMP in "${TEMPS[@]}"
do
$DEBUG && echo "INDEX: ${INDEX}" 2>/dev/null
$DEBUG && echo "CHK: ${TEMP}" 2>/dev/null
if (( "${CPU_TEMP}" > "${TEMP}" ))
then
$DEBUG && echo "Setting PWM FAN to ${SPEEDS[${INDEX}]} (${TEMP})" 2>/dev/null
echo ${SPEEDS[${INDEX}]} >${FAN_PWM}
break
fi
INDEX=$(( $INDEX + 1 ))
done
sleep 2
$DEBUG && echo "Loop" 2>/dev/null
done