X-Git-Url: https://git.madduck.net/etc/awesome.git/blobdiff_plain/d2eb6d9bcf3610d89238f567b5a50f801bcf61dc..b1a089633c0f1ac951c754b2e67b194b7f733413:/widgets/bat.lua?ds=sidebyside diff --git a/widgets/bat.lua b/widgets/bat.lua index c5279bd..e479fd9 100644 --- a/widgets/bat.lua +++ b/widgets/bat.lua @@ -1,122 +1,182 @@ --[[ - - Licensed under GNU General Public License v2 - * (c) 2013, Luke Bonham - * (c) 2010-2012, Peter Hofmann - + + Licensed under GNU General Public License v2 + * (c) 2013, Luke Bonham + * (c) 2010-2012, Peter Hofmann + --]] -local newtimer = require("lain.helpers").newtimer local first_line = require("lain.helpers").first_line - +local newtimer = require("lain.helpers").newtimer local naughty = require("naughty") local wibox = require("wibox") - -local math = { floor = math.floor } +local math = { abs = math.abs, + floor = math.floor, + log10 = math.log10, + min = math.min } local string = { format = string.format } +local ipairs = ipairs +local type = type local tonumber = tonumber - local setmetatable = setmetatable -- Battery infos -- lain.widgets.bat -local bat = {} local function worker(args) - local args = args or {} - local timeout = args.timeout or 30 - local battery = args.battery or "BAT0" - local settings = args.settings or function() end - - bat.widget = wibox.widget.textbox('') - - function update() - bat_now = { - status = "Not present", - perc = "N/A", - time = "N/A", - watt = "N/A" - } - - local bstr = "/sys/class/power_supply/" .. battery - - local present = first_line(bstr .. "/present") - - if present == "1" - then - local rate = first_line(bstr .. "/power_now") or - first_line(bstr .. "/current_now") - - local ratev = first_line(bstr .. "/voltage_now") - - local rem = first_line(bstr .. "/energy_now") or - first_line(bstr .. "/charge_now") - - local tot = first_line(bstr .. "/energy_full") or - first_line(bstr .. "/charge_full") - - bat_now.status = first_line(bstr .. "/status") or "N/A" - - rate = tonumber(rate) - ratev = tonumber(ratev) - rem = tonumber(rem) - tot = tonumber(tot) + local bat = { widget = wibox.widget.textbox() } + local args = args or {} + local timeout = args.timeout or 30 + local batteries = args.batteries or (args.battery and {args.battery}) or {"BAT0"} + local ac = args.ac or "AC0" + local notify = args.notify or "on" + local settings = args.settings or function() end + + bat_notification_low_preset = { + title = "Battery low", + text = "Plug the cable!", + timeout = 15, + fg = "#202020", + bg = "#CDCDCD" + } + + bat_notification_critical_preset = { + title = "Battery exhausted", + text = "Shutdown imminent", + timeout = 15, + fg = "#000000", + bg = "#FFFFFF" + } + + bat_now = { + status = "N/A", + ac_status = "N/A", + perc = "N/A", + time = "N/A", + watt = "N/A" + } + + bat_now.n_status = {} + bat_now.n_perc = {} + for i = 1, #batteries do + bat_now.n_status[i] = "N/A" + bat_now.n_perc[i] = 0 + end - local time_rat = 0 - if bat_now.status == "Charging" - then - time_rat = (tot - rem) / rate - elseif bat_now.status == "Discharging" - then - time_rat = rem / rate + function bat.update() + local sum_rate_current = 0 + local sum_rate_voltage = 0 + local sum_rate_power = 0 + local sum_rate_energy = 0 + local sum_energy_now = 0 + local sum_energy_full = 0 + local pspath = "/sys/class/power_supply/" + + for i, battery in ipairs(batteries) do + local bstr = pspath .. battery + local present = first_line(bstr .. "/present") + + if tonumber(present) == 1 then + -- current_now(I)[uA], voltage_now(U)[uV], power_now(P)[uW] + local rate_current = tonumber(first_line(bstr .. "/current_now")) + local rate_voltage = tonumber(first_line(bstr .. "/voltage_now")) + local rate_power = tonumber(first_line(bstr .. "/power_now")) + + -- energy_now(P)[uWh], charge_now(I)[uAh] + local energy_now = tonumber(first_line(bstr .. "/energy_now") or + first_line(bstr .. "/charge_now")) + + -- energy_full(P)[uWh], charge_full(I)[uAh] + local energy_full = tonumber(first_line(bstr .. "/energy_full") or + first_line(bstr .. "/charge_full")) + + local energy_percentage = tonumber(first_line(bstr .. "/capacity")) or + math.floor((energy_now / energy_full) * 100) + + bat_now.n_status[i] = first_line(bstr .. "/status") or "N/A" + bat_now.n_perc[i] = energy_percentage or bat_now.n_perc[i] + + sum_rate_current = sum_rate_current + (rate_current or 0) + sum_rate_voltage = sum_rate_voltage + (rate_voltage or 0) + sum_rate_power = sum_rate_power + (rate_power or 0) + sum_rate_energy = sum_rate_energy + (rate_power or (((rate_voltage or 0) * (rate_current or 0)) / 1e6)) + sum_energy_now = sum_energy_now + (energy_now or 0) + sum_energy_full = sum_energy_full + (energy_full or 0) end + end - local hrs = math.floor(time_rat) - local min = math.floor((time_rat - hrs) * 60) - - bat_now.time = string.format("%02d:%02d", hrs, min) - bat_now.perc = string.format("%d", (rem / tot) * 100) - bat_now.watt = string.format("%.2fW", (rate * ratev) / 1e12) - - -- notifications for low and critical states - if bat_now.status == "Discharging" - then - if tonumber(bat_now.perc) <= 5 - then - bat.id = naughty.notify({ - text = "shutdown imminent", - title = "battery nearly exhausted", - position = "top_right", - timeout = 15, - fg="#000000", - bg="#ffffff", - ontop = true, - replaces_id = bat.id - }).id - elseif tonumber(bat_now.perc) <= 15 - then - bat.id = naughty.notify({ - text = "plug the cable", - title = "battery low", - position = "top_right", - timeout = 15, - fg="#202020", - bg="#cdcdcd", - ontop = true, - replaces_id = bat.id - }).id - end + -- When one of the battery is charging, others' status are either + -- "Full", "Unknown" or "Charging". When the laptop is not plugged in, + -- one or more of the batteries may be full, but only one battery + -- discharging suffices to set global status to "Discharging". + bat_now.status = bat_now.n_status[1] + for _,status in ipairs(bat_now.n_status) do + if status == "Discharging" or status == "Charging" then + bat_now.status = status + end + end + bat_now.ac_status = tonumber(first_line(string.format("%s%s/online", pspath, ac))) or "N/A" + + if bat_now.status ~= "N/A" then + if bat_now.status ~= "Full" and sum_rate_power == 0 and bat_now.ac_status == 1 then + bat_now.perc = math.floor(math.min(100, (sum_energy_now / sum_energy_full) * 100)) + bat_now.time = "00:00" + bat_now.watt = 0 + + -- update {perc,time,watt} iff battery not full and rate > 0 + elseif bat_now.status ~= "Full" then + local rate_time = 0 + -- Calculate time and watt if rates are greater then 0 + if (sum_rate_power > 0 or sum_rate_current > 0) then + local div = (sum_rate_power > 0 and sum_rate_power) or sum_rate_current + + if bat_now.status == "Charging" then + rate_time = (sum_energy_full - sum_energy_now) / div + else -- Discharging + rate_time = sum_energy_now / div + end + + if 0 < rate_time and rate_time < 0.01 then -- check for magnitude discrepancies (#199) + rate_time_magnitude = math.abs(math.floor(math.log10(rate_time))) + rate_time = rate_time * 10^(rate_time_magnitude - 2) + end + end + + local hours = math.floor(rate_time) + local minutes = math.floor((rate_time - hours) * 60) + bat_now.perc = math.floor(math.min(100, (sum_energy_now / sum_energy_full) * 100)) + bat_now.time = string.format("%02d:%02d", hours, minutes) + bat_now.watt = tonumber(string.format("%.2f", sum_rate_energy / 1e6)) + elseif bat_now.status == "Full" then + bat_now.perc = 100 + bat_now.time = "00:00" + bat_now.watt = 0 end end widget = bat.widget settings() + + -- notifications for low and critical states + if notify == "on" and type(bat_now.perc) == "number" and bat_now.status == "Discharging" then + if bat_now.perc <= 5 then + bat.id = naughty.notify({ + preset = bat_notification_critical_preset, + replaces_id = bat.id + }).id + elseif bat_now.perc <= 15 then + bat.id = naughty.notify({ + preset = bat_notification_low_preset, + replaces_id = bat.id + }).id + end + end end - newtimer("bat", timeout, update) + newtimer("batteries", timeout, bat.update) - return bat.widget + return bat end -return setmetatable(bat, { __call = function(_, ...) return worker(...) end }) +return setmetatable({}, { __call = function(_, ...) return worker(...) end })