awesome_configs/widgets/bat_openbsd.lua
2021-07-04 00:06:52 +02:00

95 lines
3.4 KiB
Lua

-- battery widget type for OpenBSD
-- Copyright (C) 2019 Enric Morales <me@enric.me>
-- Copyright (C) 2019 Nguyễn Gia Phong <vn.mcsinyx@gmail.com>
--
-- This file is part of Vicious.
--
-- Vicious is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as
-- published by the Free Software Foundation, either version 2 of the
-- License, or (at your option) any later version.
--
-- Vicious is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
-- {{{ Grab environment
local pairs = pairs
local tonumber = tonumber
local table = {
insert = table.insert
}
local math = {
floor = math.floor,
modf = math.modf
}
local helpers = require("vicious.helpers")
-- }}}
local bat_openbsd = {}
function bat_openbsd.async(format, warg, callback)
local battery_id = warg or "bat0"
local fields = {
charging_rate = ("hw.sensors.acpi%s.power0"):format(battery_id),
last_full_capacity = ("hw.sensors.acpi%s.watthour0"):format(battery_id),
remaining_capacity = ("hw.sensors.acpi%s.watthour3"):format(battery_id),
design_capacity = ("hw.sensors.acpi%s.watthour4"):format(battery_id),
state = ("hw.sensors.acpi%s.raw0"):format(battery_id)
}
local sysctl_args = {}
for _, v in pairs(fields) do table.insert(sysctl_args, v) end
local battery = {}
helpers.sysctl_async(sysctl_args, function (ret)
for k, v in pairs(fields) do
-- discard the description that comes after the values
battery[k] = tonumber(ret[v]:match("(.-) "))
end
local states = {
[0] = "", -- not charging
[1] = "-", -- discharging
[2] = "!", -- critical
[3] = "+", -- charging
[4] = "N/A", -- unknown status
[255] = "N/A" -- unimplemented by the driver
}
local state = states[battery.state]
local charge = tonumber(battery.remaining_capacity
/ battery.last_full_capacity * 100)
local remaining_time
if battery.charging_rate < 1 then
remaining_time = ""
else
local raw_time = battery.remaining_capacity / battery.rate
local hours, hour_fraction = math.modf(raw_time)
local minutes = math.floor(60 * hour_fraction)
remaining_time = ("%d:%0.2d"):format(hours, minutes)
end
local wear = math.floor(battery.last_full_capacity,
battery.design_capacity)
-- Pass the following arguments to callback function:
-- * battery state symbol (↯, -, !, + or N/A)
-- * remaining capacity (in percent)
-- * remaining time, as reported by the battery
-- * wear level (in percent)
-- * present_rate (in Watts/hour)
return callback({ state, charge, remaining_time,
wear, battery.charging_rate })
end)
end
return helpers.setasyncall(bat_openbsd)