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