mirror of
https://github.com/NixOS/nixos-hardware
synced 2024-12-04 16:59:43 +01:00
69 lines
2.1 KiB
Nix
69 lines
2.1 KiB
Nix
{
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config,
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pkgs,
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lib,
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...
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}:
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let
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# This interface works for most Asus, Lenovo Thinkpad, LG, System76, and Toshiba laptops
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# A list of supported laptop models/vendors supporting the following interface can be found
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# at https://linrunner.de/tlp/settings/bc-vendors.html
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# If your laptop isn't supported, considering installing and using the tlp package's setcharge command instead
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interfaces = "/sys/class/power_supply/BAT?/charge_control_end_threshold";
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charge-upto-script = pkgs.writeScriptBin "charge-upto" ''
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echo ''${1:-100} >${interfaces}
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'';
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cfg = config.hardware.battery;
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in
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{
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options.hardware.battery = {
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chargeUpto = lib.mkOption {
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description = "Maximum level of charge for your battery, as a percentage. Applies threshold to all installed batteries";
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default = 100;
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type = lib.types.int;
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};
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enableChargeUptoScript = lib.mkOption {
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description = "Whether to add charge-upto script to environment.systemPackages. `charge-upto 75` temporarily sets the charge limit to 75%.";
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default = true;
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type = lib.types.bool;
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};
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};
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imports = (
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map
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(
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option:
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lib.mkRemovedOptionModule [
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"hardware"
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"asus"
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"battery"
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option
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] "The hardware.asus.battery.* options were removed in favor of `hardware.battery.*`."
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)
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[
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"chargeUpto"
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"enableChargeUptoScript"
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]
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);
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config = {
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environment.systemPackages = lib.mkIf cfg.enableChargeUptoScript [ charge-upto-script ];
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systemd.services.battery-charge-threshold = {
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wantedBy = [
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"local-fs.target"
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"suspend.target"
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];
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after = [
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"local-fs.target"
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"suspend.target"
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];
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description = "Set the battery charge threshold to ${toString cfg.chargeUpto}%";
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startLimitBurst = 5;
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startLimitIntervalSec = 1;
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serviceConfig = {
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Type = "oneshot";
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Restart = "on-failure";
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ExecStart = "${pkgs.runtimeShell} -c 'echo ${toString cfg.chargeUpto} > ${interfaces}'";
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};
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};
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};
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}
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