70 lines
1.5 KiB
Bash
Executable File
70 lines
1.5 KiB
Bash
Executable File
#!/bin/bash
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# determine fan controller
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if [ -d /sys/devices/platform/pwm-fan ]; then
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echo "pls use /usr/bin/fa-fancontrol.sh."
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exit 1
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fi
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if [ ! -d /sys/class/pwm/pwmchip1 ]; then
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echo "this model does not support pwm."
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exit 1
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fi
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if [ ! -d /sys/class/pwm/pwmchip1/pwm0 ]; then
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echo 0 > /sys/class/pwm/pwmchip1/export
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fi
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sleep 1
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while [ ! -d /sys/class/pwm/pwmchip1/pwm0 ];
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do
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sleep 1
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done
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ISENABLE=`cat /sys/class/pwm/pwmchip1/pwm0/enable`
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if [ $ISENABLE -eq 1 ]; then
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echo 0 > /sys/class/pwm/pwmchip1/pwm0/enable
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fi
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echo 50000 > /sys/class/pwm/pwmchip1/pwm0/period
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echo 1 > /sys/class/pwm/pwmchip1/pwm0/enable
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# max speed run 5s
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echo 46990 > /sys/class/pwm/pwmchip1/pwm0/duty_cycle
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sleep 5
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echo 25000 > /sys/class/pwm/pwmchip1/pwm0/duty_cycle
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# declare -a CpuTemps=(55000 43000 38000 32000)
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# declare -a PwmDutyCycles=(1000 20000 30000 45000)
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declare -a CpuTemps=(75000 63000 58000 52000)
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declare -a PwmDutyCycles=(25000 35000 45000 46990)
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declare -a Percents=(100 75 50 25)
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DefaultDuty=49990
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DefaultPercents=0
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while true
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do
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temp=$(cat /sys/class/thermal/thermal_zone0/temp)
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INDEX=0
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FOUNDTEMP=0
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DUTY=$DefaultDuty
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PERCENT=$DefaultPercents
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for i in 0 1 2 3; do
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if [ $temp -gt ${CpuTemps[$i]} ]; then
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INDEX=$i
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FOUNDTEMP=1
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break
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fi
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done
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if [ ${FOUNDTEMP} == 1 ]; then
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DUTY=${PwmDutyCycles[$i]}
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PERCENT=${Percents[$i]}
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fi
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echo $DUTY > /sys/class/pwm/pwmchip1/pwm0/duty_cycle;
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# echo "temp: $temp, duty: $DUTY, ${PERCENT}%"
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# cat /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_cur_freq
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sleep 2s;
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done
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