68 lines
1.8 KiB
Lua
68 lines
1.8 KiB
Lua
----------------------------------------------------------
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-- Licensed under the GNU General Public License version 2
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-- * Copyright (C) 2009 Adrian C. <anrxc_sysphere_org>
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----------------------------------------------------------
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-- {{{ Grab environment
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local io = { open = io.open }
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local setmetatable = setmetatable
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local string = {
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find = string.find,
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match = string.match
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}
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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.cpufreq")
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-- {{{ CPU frequency widget type
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local function worker(format, cpuid)
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-- Initialise tables
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--local governor_state = {
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-- ["ondemand"] = "↯",
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-- ["powersave"] = "⌁",
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-- ["userspace"] = "°",
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-- ["performance"] = "⚡",
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-- ["conservative"] = "↯"
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--}
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-- Get the current frequency
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local ffreq = io.open("/sys/devices/system/cpu/"..cpuid.."/cpufreq/scaling_cur_freq")
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local freq = ffreq:read("*line")
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ffreq:close()
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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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local fvolt = io.open("/sys/devices/system/cpu/"..cpuid.."/cpufreq/scaling_voltages")
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for line in fvolt:lines() do
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if line:find("^"..freq) then
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voltagemv = line:match("[%d]+[%s]([%d]+)")
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break
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end
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end
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fvolt:close()
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-- Calculate voltage from mV
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local voltagev = voltagemv / 1000
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-- Get the current governor
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local fgov = io.open("/sys/devices/system/cpu/"..cpuid.."/cpufreq/scaling_governor")
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local governor = fgov:read("*line")
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fgov:close()
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-- Represent the governor as a symbol
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--local governor = governor_state[governor] or governor
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return {freqmhz, freqghz, voltagemv, voltagev, 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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