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https://github.com/NixOS/mobile-nixos.git
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3d0552223d
The examples/hello system can be used by users that want to boot a minimal, and cross-compilable system. This is better than a "raw" build of the root of the Mobile NixOS repo since it provides a stage-2 application stating the system booted successfully.
77 lines
2.0 KiB
Ruby
77 lines
2.0 KiB
Ruby
module HAL
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class Battery
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NODE_BASE = "/sys/class/power_supply"
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# Guesstimates the main battery for a list of likely candidates
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def self.main_battery()
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node = %w{
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battery
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bms
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BAT0
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}.map { |name| File.join(NODE_BASE, name) }
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.find { |path| File.exist?(path) }
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if node
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Battery.new(node)
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else
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nil
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end
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end
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def initialize(node)
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@node = node
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end
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# google-walleye
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# [nixos@nixos:/sys/class/power_supply]$ cat battery/uevent
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# POWER_SUPPLY_NAME=battery
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# POWER_SUPPLY_INPUT_SUSPEND=0
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# POWER_SUPPLY_STATUS=Charging
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# POWER_SUPPLY_HEALTH=Good
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# POWER_SUPPLY_PRESENT=1
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# POWER_SUPPLY_CHARGE_TYPE=Fast
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# POWER_SUPPLY_CAPACITY=56
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# POWER_SUPPLY_SYSTEM_TEMP_LEVEL=0
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# POWER_SUPPLY_CHARGER_TEMP=364
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# POWER_SUPPLY_CHARGER_TEMP_MAX=803
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# POWER_SUPPLY_INPUT_CURRENT_LIMITED=1
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# POWER_SUPPLY_VOLTAGE_NOW=3780507
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# POWER_SUPPLY_VOLTAGE_MAX=4400000
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# POWER_SUPPLY_VOLTAGE_QNOVO=-22
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# POWER_SUPPLY_CURRENT_NOW=183105
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# POWER_SUPPLY_CURRENT_QNOVO=-22
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# POWER_SUPPLY_CONSTANT_CHARGE_CURRENT_MAX=2700000
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# POWER_SUPPLY_TEMP=320
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# POWER_SUPPLY_TECHNOLOGY=Li-ion
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# POWER_SUPPLY_STEP_CHARGING_ENABLED=0
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# POWER_SUPPLY_STEP_CHARGING_STEP=-1
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# POWER_SUPPLY_CHARGE_DISABLE=0
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# POWER_SUPPLY_CHARGE_DONE=0
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# POWER_SUPPLY_PARALLEL_DISABLE=0
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# POWER_SUPPLY_SET_SHIP_MODE=0
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# POWER_SUPPLY_CHARGE_FULL=2805000
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# POWER_SUPPLY_DIE_HEALTH=Cool
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# POWER_SUPPLY_RERUN_AICL=0
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# POWER_SUPPLY_DP_DM=0
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# POWER_SUPPLY_CHARGE_COUNTER=1455951
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# POWER_SUPPLY_CYCLE_COUNT=849
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def uevent()
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File.read(File.join(@node, "uevent")).split("\n").map do |line|
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key, value = line.split("=", 2)
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[key.downcase.to_sym, value]
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end.to_h
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end
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def name()
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uevent[:power_supply_name] || "unknown"
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end
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def status()
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uevent[:power_supply_status] || "unknown"
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end
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def percent()
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uevent[:power_supply_capacity] || "unknown"
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end
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end
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end
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