From af4431b9efaff1dfa9c1e4a985c7e70d1d82b847 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Leonardo=20Eug=C3=AAnio?= <lelgenio@disroot.org>
Date: Fri, 17 Jan 2025 20:29:22 -0300
Subject: [PATCH] amdgpu: update fan controller
---
scripts/amd-fan-control | 27 +++++++++++++++++++--------
1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/scripts/amd-fan-control b/scripts/amd-fan-control
index 641c5cf..1f4c3e7 100755
--- a/scripts/amd-fan-control
+++ b/scripts/amd-fan-control
@@ -18,7 +18,7 @@ bail() {
exit 1
}
-if ! [ -d $HWMON ]; then
+if ! [ -d "$HWMON" ]; then
bail "Invalid HWMON"
fi
@@ -28,20 +28,31 @@ if ! [ -f $TEMP_INPUT ]; then
bail "Invalid TEMP_INPUT"
fi
-MIN="$2"
-MAX="$3"
+TEMP_MIN="$2"
+TEMP_MAX="$3"
+
+if [ -z "$TEMP_MIN" ];then
+ bail "No minimum temperature provided"
+fi
+
+if [ -z "$TEMP_MAX" ];then
+ bail "No maximum temperature provided"
+fi
+
+PWM_MIN=0
+PWM_MAX=255
echo "Running..." >&2
while true; do
TEMPERATURE_RAW=$(cat "$TEMP_INPUT")
TEMPERATURE="$(( $TEMPERATURE_RAW / 1000 ))"
# Remap from a number between 60_000..90_000 to 0..255
- PWM=$(( ($TEMPERATURE - $MIN) * 255 / ($MAX - $MIN) ))
+ PWM=$(( ($TEMPERATURE - $TEMP_MIN) * $PWM_MAX / ($TEMP_MAX - $TEMP_MIN) ))
- if [ "$PWM" -gt 255 ]; then
- PWM=255
- elif [ "$PWM" -lt 0 ]; then
- PWM=0
+ if [ "$PWM" -gt $PWM_MAX ]; then
+ PWM=$PWM_MAX
+ elif [ "$PWM" -lt $PWM_MIN ]; then
+ PWM=$PWM_MIN
fi
echo 1 > "$HWMON/pwm1_enable"