From 7be967e954ad5d602a0bc8616f129be7a999ebce Mon Sep 17 00:00:00 2001 From: Imre Kaloz Date: Mon, 26 Jan 2015 20:41:43 +0000 Subject: [PATCH] mvebu: temporary el cheapo' fan control script Signed-off-by: Imre Kaloz SVN-Revision: 44153 --- .../linux/mvebu/base-files/etc/crontabs/root | 1 + .../linux/mvebu/base-files/sbin/fan_ctrl.sh | 20 +++++++++++++++++++ 2 files changed, 21 insertions(+) create mode 100644 target/linux/mvebu/base-files/etc/crontabs/root create mode 100755 target/linux/mvebu/base-files/sbin/fan_ctrl.sh diff --git a/target/linux/mvebu/base-files/etc/crontabs/root b/target/linux/mvebu/base-files/etc/crontabs/root new file mode 100644 index 0000000000..e692f578bb --- /dev/null +++ b/target/linux/mvebu/base-files/etc/crontabs/root @@ -0,0 +1 @@ +*/5 * * * * /sbin/fan_ctrl.sh diff --git a/target/linux/mvebu/base-files/sbin/fan_ctrl.sh b/target/linux/mvebu/base-files/sbin/fan_ctrl.sh new file mode 100755 index 0000000000..f7f4e0598d --- /dev/null +++ b/target/linux/mvebu/base-files/sbin/fan_ctrl.sh @@ -0,0 +1,20 @@ +#!/bin/sh + +CPU_TEMP=`cut -c1-2 /sys/class/hwmon/hwmon2/temp1_input` +DDR_TEMP=`cut -c1-2 /sys/class/hwmon/hwmon1/temp1_input` +WIFI_TEMP=`cut -c1-2 /sys/class/hwmon/hwmon1/temp2_input` + +CPU_LOW=85 +CPU_HIGH=95 +DDR_LOW=65 +DDR_HIGH=75 +WIFI_LOW=100 +WIFI_HIGH=115 + +if [ "$CPU_TEMP" -ge "$CPU_HIGH" -o "$DDR_TEMP" -ge "$DDR_HIGH" -o "$WIFI_TEMP" -ge "$WIFI_HIGH" ];then + echo "255" > /sys/devices/pwm_fan/hwmon/hwmon0/pwm1 +elif [ "$CPU_TEMP" -ge "$CPU_LOW" -o "$DDR_TEMP" -ge "$DDR_LOW" -o "$WIFI_TEMP" -ge "$WIFI_LOW" ];then + echo "100" > /sys/devices/pwm_fan/hwmon/hwmon0/pwm1 +else + echo "0" > /sys/devices/pwm_fan/hwmon/hwmon0/pwm1 +fi