79 lines
2.3 KiB
Lua
79 lines
2.3 KiB
Lua
|
---------------------------------------------------
|
||
|
|
-- Licensed under the GNU General Public License v2
|
||
|
|
-- * (c) 2010, Adrian C. <anrxc@sysphere.org>
|
||
|
|
---------------------------------------------------
|
||
|
|
|
||
|
|
-- {{{ Grab environment
|
||
|
|
local tonumber = tonumber
|
||
|
|
local io = { open = io.open }
|
||
|
|
local setmetatable = setmetatable
|
||
|
|
local math = {
|
||
|
|
min = math.min,
|
||
|
|
floor = math.floor
|
||
|
|
}
|
||
|
|
local string = {
|
||
|
|
find = string.find,
|
||
|
|
match = string.match,
|
||
|
|
format = string.format
|
||
|
|
}
|
||
|
|
-- }}}
|
||
|
|
|
||
|
|
|
||
|
|
-- Batpmu: provides state, charge and remaining time for a requested battery using PMU
|
||
|
|
module("vicious.contrib.batpmu")
|
||
|
|
|
||
|
|
|
||
|
|
-- {{{ Battery widget type
|
||
|
|
local function worker(format, batid)
|
||
|
|
local battery_state = {
|
||
|
|
["full"] = "↯",
|
||
|
|
["unknown"] = "⌁",
|
||
|
|
["00000013"] = "+",
|
||
|
|
["00000011"] = "-"
|
||
|
|
}
|
||
|
|
|
||
|
|
-- Get /proc/pmu/battery* state
|
||
|
|
local f = io.open("/proc/pmu/" .. batid)
|
||
|
|
-- Handler for incompetent users
|
||
|
|
if not f then return {battery_state["unknown"], 0, "N/A"} end
|
||
|
|
local statefile = f:read("*all")
|
||
|
|
f:close()
|
||
|
|
|
||
|
|
-- Get /proc/pmu/info data
|
||
|
|
local f = io.open("/proc/pmu/info")
|
||
|
|
local infofile = f:read("*all")
|
||
|
|
f:close()
|
||
|
|
|
||
|
|
-- Check if the battery is present
|
||
|
|
if infofile == nil or string.find(infofile, "Battery count[%s]+:[%s]0") then
|
||
|
|
return {battery_state["unknown"], 0, "N/A"}
|
||
|
|
end
|
||
|
|
|
||
|
|
|
||
|
|
-- Get capacity and charge information
|
||
|
|
local capacity = string.match(statefile, "max_charge[%s]+:[%s]([%d]+).*")
|
||
|
|
local remaining = string.match(statefile, "charge[%s]+:[%s]([%d]+).*")
|
||
|
|
|
||
|
|
-- Calculate percentage
|
||
|
|
local percent = math.min(math.floor(remaining / capacity * 100), 100)
|
||
|
|
|
||
|
|
|
||
|
|
-- Get timer information
|
||
|
|
local timer = string.match(statefile, "time rem%.[%s]+:[%s]([%d]+).*")
|
||
|
|
if timer == "0" then return {battery_state["full"], percent, "N/A"} end
|
||
|
|
|
||
|
|
-- Get state information
|
||
|
|
local state = string.match(statefile, "flags[%s]+:[%s]([%d]+).*")
|
||
|
|
local state = battery_state[state] or battery_state["unknown"]
|
||
|
|
|
||
|
|
-- Calculate remaining (charging or discharging) time
|
||
|
|
local hoursleft = math.floor(tonumber(timer) / 3600)
|
||
|
|
local minutesleft = math.floor((tonumber(timer) / 60) % 60)
|
||
|
|
local time = string.format("%02d:%02d", hoursleft, minutesleft)
|
||
|
|
|
||
|
|
return {state, percent, time}
|
||
|
|
end
|
||
|
|
-- }}}
|
||
|
|
|
||
|
|
setmetatable(_M, { __call = function(_, ...) return worker(...) end })
|