86 lines
3.4 KiB
Lua
86 lines
3.4 KiB
Lua
-- bat_openbsd.lua - provide battery information on OpenBSD
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-- Copyright (C) 2019 Enric Morales
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-- Copyright (C) 2019 Nguyễn Gia Phong
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--
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-- This file is part of Vicious.
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--
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-- Vicious is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as
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-- published by the Free Software Foundation, either version 2 of the
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-- License, or (at your option) any later version.
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--
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-- Vicious is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU Affero General Public License for more details.
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--
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-- You should have received a copy of the GNU Affero General Public License
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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-- {{{ Grab environment
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local tonumber = tonumber
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local math = { floor = math.floor, modf = math.modf }
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local helpers = require"vicious.helpers"
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local spawn = require"vicious.spawn"
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-- }}}
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local STATES = { [0] = "↯", -- not charging
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[1] = "-", -- discharging
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[2] = "!", -- critical
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[3] = "+", -- charging
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[4] = "N/A", -- unknown status
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[255] = "N/A" } -- unimplemented by the driver
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return helpers.setasyncall{
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async = function (format, warg, callback)
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local filter = "hw.sensors.acpi" .. (warg or "bat0")
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local pattern = filter .. ".(%S+)=(%S+)"
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local bat_info = {}
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spawn.with_line_callback_with_shell(
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("sysctl -a | grep '^%s'"):format(filter),
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{ stdout = function (line)
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for key, value in line:gmatch(pattern) do
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bat_info[key] = value
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end
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end,
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output_done = function ()
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-- current state
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local state = STATES[tonumber(bat_info.raw0)]
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-- battery capacity in percent
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local percent = tonumber(
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bat_info.watthour3 / bat_info.watthour0 * 100)
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local time
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if tonumber(bat_info.power0) < 1 then
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time = "∞"
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else
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local raw_time = bat_info.watthour3 / bat_info.power0
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local hours, hour_fraction = math.modf(raw_time)
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local minutes = math.floor(60 * hour_fraction)
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time = ("%d:%0.2d"):format(hours, minutes)
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end
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-- calculate wear level from (last full / design) capacity
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local wear = "N/A"
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if bat_info.watthour0 and bat_info.watthour4 then
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local l_full = tonumber(bat_info.watthour0)
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local design = tonumber(bat_info.watthour4)
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wear = math.floor(l_full / design * 100)
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end
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-- dis-/charging rate as presented by battery
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local rate = bat_info.power0
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-- Pass the following arguments to callback function:
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-- * battery state symbol (↯, -, !, + or N/A)
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-- * remaining_capacity (in percent)
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-- * remaining_time, by battery
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-- * wear level (in percent)
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-- * present_rate (in Watts)
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callback{state, percent, time, wear, rate}
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end })
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end }
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