68 lines
1.8 KiB
Lua
68 lines
1.8 KiB
Lua
|
----------------------------------------------------------
|
||
|
|
-- 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 })
|