dtsoverlays

modules/nixos/hardware/raspberry-pi/audio.nix

@@ -0,0 +1,30 @@
+{ config, lib, pkgs, namespace, ... }:
+let
+  cfg = config.${namespace}.hardware.raspberry-pi.audio;
+  variant = config.${namespace}.hardware.raspberry-pi.variant;
+in
+{
+  options.${namespace}.hardware.raspberry-pi.audio = {
+    enable = lib.mkEnableOption "enable audio dt overlays";
+  };
+
+  config = lib.mkIf cfg.enable {
+    hardware.deviceTree = {
+      overlays = 
+      [ ] ++ (if (variant == "5") then 
+      [
+        {
+          name = "pisound-pi5-overlay";
+          dtsFile = "${pkgs.${namespace}.raspberrypi-overlays}/share/raspberrypi-overlays/pisound-pi5-overlay.dts";
+        }
+      ]
+      else
+      [
+        {
+          name = "pisound-overlay";
+          dtsFile = "${pkgs.${namespace}.raspberrypi-overlays}/share/raspberrypi-overlays/pisound-overlay.dts";
+        }
+      ]);
+    };
+  };
+}