#!/bin/sh -e
#
# cpu_freq: calculate current cpu frequency
#
# Copyright (C) 2008 Canonical Ltd.
# Copyright (C) 2011-2014 Dustin Kirkland
#
# Authors: Dustin Kirkland <[email protected]>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

__cpu_freq_detail() {
cat /proc/cpuinfo
}

__cpu_freq() {
local hz freq count
if [ -r "/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq" ]; then
read hz < /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
fpdiv $hz "1000000" 1 # 1Ghz
freq="$_RET"
elif [ -r "/proc/cpuinfo" ]; then
if egrep -q -s -i -m 1 "^cpu MHz|^clock" /proc/cpuinfo; then
freq=$(egrep -i -m 1 "^cpu MHz|^clock" /proc/cpuinfo | awk -F"[:.]" '{ printf "%01.1f", $2 / 1000 }')
else
# Must scale frequency by number of processors, if counting bogomips
count=$(getconf _NPROCESSORS_ONLN 2>/dev/null || grep -ci "^processor" /proc/cpuinfo)
freq=$(egrep -i -m 1 "^bogomips" /proc/cpuinfo | awk -F"[:.]" '{ print $2 }')
freq=$(printf "%s %s" "$freq" "$count" | awk '{printf "%01.1f\n", $1/$2/1000}')
fi
elif hz=$(sysctl -n hw.cpufrequency 2>/dev/null); then
fpdiv $hz "1000000000" 1 # 1Ghz
freq="$_RET"
fi
[ -n "$freq" ] || return
color b c W; printf "%s" "$freq"; color -; color c W; printf "%s" "$ICON_GHz"; color --
}

# vi: syntax=sh ts=4 noexpandtab