#!/sbin/runscript

depend() {
	need modules
}

KERNEL_VERSION=`uname -r`
KERNEL_VERSION_CONF=${KERNEL_VERSION//./_}
KERNEL_VERSION_CONF="modules_${KERNEL_VERSION_CONF//-/_}"
MODULES_PATH="/lib/modules/${KERNEL_VERSION}"
CONF_FILE="/etc/conf.d/modules"

get_cpufreq_modules(){
	MODULES_STRING=""
	for path in $(find $MODULES_PATH -name cpufreq)
	do
		for module_path in $(find $path -name *.ko)
		do
			module_name=${module_path##\/*\/}
			module_name=${module_name%.ko}
			if modprobe $module_name &>/dev/null;
			then
				if [[ ${MODULES_STRING} ]];
				then
					MODULES_STRING="${MODULES_STRING} $module_name"
				else
					MODULES_STRING=$module_name
				fi
			fi
		done
	done
}

find_string_modules(){
	find_string=$(awk "/^\s*[^#]*\s*${KERNEL_VERSION_CONF}/ {print}" < ${CONF_FILE})
	if [[ -n $find_string ]];
	then
		return 0
	fi
	return 1
}

add_autoload_modules(){
	if ! find_string_modules;
	then
		ebegin "Added rules for cpu frequency"
		get_cpufreq_modules
		echo ${KERNEL_VERSION_CONF}=\"${MODULES_STRING}\" >> ${CONF_FILE}
	else
		ebegin "Cpu frequency modules already detected"
	fi
}

start() {
	add_autoload_modules
	eend
}

stop() {
	if rc-update show boot | grep -q calculate-builder
	then
		rc-update del calculate-builder boot
	fi
}