---[[
- smapi.lua
- Interface with thinkpad battery information
+--[[
+
+ smapi.lua
+ Interface with thinkpad battery information
+
Licensed under GNU General Public License v2
- * (c) 2013, Conor Heine
+ * (c) 2013, Conor Heine
--]]
local setmetatable = setmetatable
local smapi = {}
-
local apipath = "/sys/devices/platform/smapi"
-- Most are readable values, but some can be written to (not implemented, yet?)
local readable = {
- barcoding = true,
- charging_max_current = true,
- charging_max_voltage = true,
- chemistry = true,
- current_avg = true,
- current_now = true,
- cycle_count = true,
- design_capacity = true,
- design_voltage = true,
- dump = true,
- first_use_date = true,
- force_discharge = false,
- group0_voltage = true,
- group1_voltage = true,
- group2_voltage = true,
- group3_voltage = true,
- inhibit_charge_minutes = false,
- installed = true,
- last_full_capacity = true,
- manufacture_date = true,
- manufacturer = true,
- model = true,
- power_avg = true,
- power_now = true,
- remaining_capacity = true,
- remaining_charging_time = true,
- remaining_percent = true,
- remaining_percent_error = true,
- remaining_running_time = true,
+ barcoding = true,
+ charging_max_current = true,
+ charging_max_voltage = true,
+ chemistry = true,
+ current_avg = true,
+ current_now = true,
+ cycle_count = true,
+ design_capacity = true,
+ design_voltage = true,
+ dump = true,
+ first_use_date = true,
+ force_discharge = false,
+ group0_voltage = true,
+ group1_voltage = true,
+ group2_voltage = true,
+ group3_voltage = true,
+ inhibit_charge_minutes = false,
+ installed = true,
+ last_full_capacity = true,
+ manufacture_date = true,
+ manufacturer = true,
+ model = true,
+ power_avg = true,
+ power_now = true,
+ remaining_capacity = true,
+ remaining_charging_time = true,
+ remaining_percent = true,
+ remaining_percent_error = true,
+ remaining_running_time = true,
remaining_running_time_now = true,
- serial = true,
- start_charge_thresh = false,
- state = true,
- stop_charge_thresh = false,
- temperature = true,
- voltage = true,
+ serial = true,
+ start_charge_thresh = false,
+ state = true,
+ stop_charge_thresh = false,
+ temperature = true,
+ voltage = true,
}
function smapi:battery(name)
bat.name = name
bat.path = apipath .. "/" .. name
-
+
function bat:get(item)
return self.path ~= nil and readable[item] and first_line(self.path .. "/" .. item) or nil
end
local time_val = bat_now.status == 'discharging' and 'remaining_running_time' or 'remaining_charging_time'
local mins_left = self:get(time_val)
- if mins_left:find("^%d+") == nil
- then
- return "N/A"
- end
-
- local hrs = mins_left / 60
+ if not mins_left:find("^%d+") then return "N/A" end
+
+ local hrs = math.floor(mins_left / 60)
local min = mins_left % 60
+
return string.format("%02d:%02d", hrs, min)
end
return setmetatable(bat, {__metatable = false, __newindex = false})
end
-return smapi
\ No newline at end of file
+return smapi