grimm-nixos-laptop/common/hardware/laptop.nix

{
  pkgs,
  config,
  lib,
  ...
}:
let
  inherit (config.grimmShared) enable laptop_hardware graphical;
in
{
  config = lib.mkIf (enable && laptop_hardware.enable) {
    environment.systemPackages =
      with pkgs;
      [
        lm_sensors
        lshw
        pciutils
        usbutils
        ddcutil
        python312Packages.py-cpuinfo
        (writeShellScriptBin "lsiommu" ./lsiommu)
      ]
      ++ lib.optionals graphical [
        opentabletdriver
        ddcui
        wootility
      ];

    services.udev.packages = with pkgs; [ yubikey-personalization ];

    hardware.i2c.enable = true;
    services.libinput.enable = true;
    hardware.opentabletdriver.enable = true;
    services.udisks2.enable = true;

    services.udev.extraRules = ''
      SUBSYSTEM=="i2c-dev", ACTION=="add",\
        ATTR{name}=="NVIDIA i2c adapter*",\
        TAG+="ddcci",\
        TAG+="systemd",\
        ENV{SYSTEMD_WANTS}+="ddcci@$kernel.service"
    '';

    systemd.services."ddcci@" = {
      scriptArgs = "%i";
      script = ''
        sleep 20
        echo Trying to attach ddcci to $1
        i=0
        id=$(echo $1 | cut -d "-" -f 2)
        if ${lib.getExe' pkgs.ddcutil "ddcutil"} getvcp 10 -b $id; then
          echo ddcci 0x37 > /sys/bus/i2c/devices/$1/new_device
        fi
      '';
      serviceConfig.Type = "oneshot";
    };

    boot = {
      kernelParams = [ "quiet" ];
      loader.efi.canTouchEfiVariables = true;
      initrd.availableKernelModules = [
        "xhci_pci"
        "ahci"
        "nvme"
        "usbhid"
        "usb_storage"
        "sd_mod"
      ];
#      initrd.systemd.enable = true;
      loader.systemd-boot.enable = true;
      #      extraModulePackages = [ config.boot.kernelPackages.ddcci-driver ];
      kernelModules = [
        "ddcci_backlight"
        "i2c-dev"
        "ec_sys"
      ];
    };
  };

  options.grimmShared.laptop_hardware = {
    enable = lib.mkEnableOption "grimm-laptop";
  };
}