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| -rw-r--r-- | README | 4 | ||||
| -rw-r--r-- | cpufreq.lua | 67 |
2 files changed, 71 insertions, 0 deletions
@@ -83,6 +83,10 @@ in the format string. vicious.widgets.cpu - provides CPU usage for all available CPUs/cores +vicious.widgets.cpufreq + - provides freq, voltage and governor info for a requested CPU + - takes the CPU ID as an argument, i.e. "cpu0" + vicious.widgets.thermal - provides temperature levels of ACPI thermal zones - takes the thermal zone as an argument, i.e. "TZS0" diff --git a/cpufreq.lua b/cpufreq.lua new file mode 100644 index 0000000..550bba3 --- /dev/null +++ b/cpufreq.lua @@ -0,0 +1,67 @@ +---------------------------------------------------------- +-- Licensed under the GNU General Public License version 2 +-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org> +---------------------------------------------------------- + +-- {{{ Grab environment +local io = { open = io.open } +local setmetatable = setmetatable +local string = { + find = string.find, + match = string.match +} +-- }}} + + +-- Cpufreq: provides freq, voltage and governor info for a requested CPU +module("vicious.cpufreq") + + +-- {{{ CPU frequency widget type +function worker(format, cpuid) + -- Initialise tables + --local governor_state = { + -- ["ondemand"] = "↯", + -- ["powersave"] = "⌁", + -- ["userspace"] = "°", + -- ["performance"] = "⚡", + -- ["conservative"] = "↯" + --} + + -- Get the current frequency + local ffreq = io.open("/sys/devices/system/cpu/"..cpuid.."/cpufreq/scaling_cur_freq") + local freq = ffreq:read("*line") + ffreq:close() + + -- Calculate MHz and GHz + local freqmhz = freq / 1000 + local freqghz = freqmhz / 1000 + + + -- Get the current voltage + local fvolt = io.open("/sys/devices/system/cpu/"..cpuid.."/cpufreq/scaling_voltages") + for line in fvolt:lines() do + if line:find("^"..freq) then + voltagemv = line:match("[%d]+[%s]([%d]+)") + break + end + end + fvolt:close() + + -- Calculate voltage from mV + local voltagev = voltagemv / 1000 + + + -- Get the current governor + local fgov = io.open("/sys/devices/system/cpu/"..cpuid.."/cpufreq/scaling_governor") + local governor = fgov:read("*line") + fgov:close() + + -- Represent the governor as a symbol + --local governor = governor_state[governor] or governor + + return {freqmhz, freqghz, voltagemv, voltagev, governor} +end +-- }}} + +setmetatable(_M, { __call = function(_, ...) return worker(...) end }) |