#!/bin/bash
#
## HW diagnostics - Prime95

SMCPATH="/sys/devices/platform/applesmc.768"
SET_MAX="True"

function usage {
    echo "Usage: $0 auto|max"
    echo "  e.g. $0 max"
}

# Set mode
case $1 in
    auto)
        SET_MAX="False";;
    max)
        SET_MAX="True";;
    *)
        usage
        exit 1;;
esac

if [[ -e "$SMCPATH" ]]; then
    if [[ "$SET_MAX" == "True" ]]; then
        # Set fans to max RPM
        for fan in $SMCPATH/fan*max; do
            echo '1' | sudo tee ${fan:0:-4}_manual > /dev/null
            cat $fan | sudo tee ${fan:0:-4}_output > /dev/null
        done
    else
        # Set fans to auto
        for fan in $SMCPATH/fan*manual; do
            echo '0' | sudo tee $fan > /dev/null
        done
    fi
fi