default.nix

{ lib, pkgs, config, ... }:
let
  linux_rpi5 = pkgs.linux_rpi4.override {
    rpiVersion = 5;
    argsOverride.defconfig = "bcm2712_defconfig";
  };
in
{
  boot = {
    kernelPackages = lib.mkDefault (pkgs.linuxPackagesFor linux_rpi5);
    initrd.availableKernelModules = [
      "nvme"
      "usbhid"
      "usb_storage"
    ];
  };

  # Needed for Xorg to start (https://github.com/raspberrypi-ui/gldriver-test/blob/master/usr/lib/systemd/scripts/rp1_test.sh)
  # This won't work for displays connected to the RP1 (DPI/composite/MIPI DSI), since I don't have one to test.
  services.xserver.extraConfig = ''
  Section "OutputClass"
    Identifier "vc4"
    MatchDriver "vc4"
    Driver "modesetting"
    Option "PrimaryGPU" "true"
  EndSection
  '';

  assertions = [
    {
      assertion = (lib.versionAtLeast config.boot.kernelPackages.kernel.version "6.1.54");
      message = "The Raspberry Pi 5 requires a newer kernel version (>=6.1.54). Please upgrade nixpkgs for this system.";
    }
  ];
}