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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 voltage values
local voltage = { v = "N/A", mv = "N/A" }
-- Get the current frequency
local freq = tonumber(cpufreq.scaling_cur_freq)
-- Calculate MHz and GHz
local freqmhz = freq / 1000
local freqghz = freqmhz / 1000
-- Get the current voltage
if cpufreq.scaling_voltages then
voltage.mv = tonumber(string.match(cpufreq.scaling_voltages, freq.."[%s]([%d]+)"))
-- Calculate voltage from mV
voltage.v = voltage.mv / 1000
end
-- Get the current governor
local governor = cpufreq.scaling_governor
-- Represent the governor as a symbol
governor = governor_state[governor] or governor
return {freqmhz, freqghz, voltage.mv, voltage.v, governor}
end
-- }}}
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
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