os/core/power.nix


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{
  config,
  lib,
  ...
}: let
  cfg = config.os.core.power;
in {
  options.os.core.power = {
    enable = lib.mkEnableOption "enables power management";
    mode = lib.mkOption {
      type = lib.types.enum ["amd" "intel" "none"];
      default = "none";
    };
  };

  config = lib.mkIf cfg.enable (lib.mkMerge [
    {
      powerManagement.powertop.enable = true;
      boot.kernelParams = ["nvme_core.default_ps_max_latency_us=0"];
    }

    (lib.mkIf (cfg.mode == "amd") {
      services.power-profiles-daemon.enable = true;
      boot.kernelParams = ["amd_pstate=active"];
    })

    (lib.mkIf (cfg.mode == "intel") {
      services = {
        power-profiles-daemon.enable = false;

        thermald.enable = true;
        tlp = {
          enable = true;
          settings = {
            START_CHARGE_THRESH_BAT0 = 75;
            STOP_CHARGE_THRESH_BAT0 = 80;
            START_CHARGE_THRESH_BAT1 = 75;
            STOP_CHARGE_THRESH_BAT1 = 80;
            CPU_SCALING_GOVERNOR_ON_AC = "performance";
            CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
          };
        };
      };
    })
  ]);
}