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---------------------------------------------------
-- Licensed under the GNU General Public License v2
-- * (c) 2010, Adrian C. <anrxc@sysphere.org>
---------------------------------------------------
-- {{{ Grab environment
local tonumber = tonumber
local setmetatable = setmetatable
local string = { match = string.match }
local helpers = require("vicious.helpers")
-- }}}
-- Cpufreq: provides freq, voltage and governor info for a requested CPU
module("vicious.widgets.cpufreq")
-- {{{ CPU frequency widget type
local function worker(format, warg)
if not warg then return end
local cpufreq = helpers.pathtotable("/sys/devices/system/cpu/"..warg.."/cpufreq")
local governor_state = {
["ondemand\n"] = "↯",
["powersave\n"] = "⌁",
["userspace\n"] = "¤",
["performance\n"] = "⚡",
["conservative\n"] = "⊚"
}
-- Default frequency and voltage values
local freqv = {
["mhz"] = "N/A", ["ghz"] = "N/A",
["v"] = "N/A", ["mv"] = "N/A",
}
-- Get the current frequency
local freq = tonumber(cpufreq.scaling_cur_freq)
-- Calculate MHz and GHz
if freq then
freqv.mhz = freq / 1000
freqv.ghz = freqv.mhz / 1000
-- Get the current voltage
if cpufreq.scaling_voltages then
freqv.mv = tonumber(string.match(cpufreq.scaling_voltages, freq.."[%s]([%d]+)"))
-- Calculate voltage from mV
freqv.v = freqv.mv / 1000
end
end
-- Get the current governor
local governor = cpufreq.scaling_governor
-- Represent the governor as a symbol
governor = governor_state[governor] or governor or "N/A"
return {freqv.mhz, freqv.ghz, freqv.mv, freqv.v, governor}
end
-- }}}
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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