hardware/firmware: init from legacy

legacy/modules/intel.nix

@@ -1,5 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-{
-  hardware.cpu.intel.updateMicrocode = true;
-}

machines/thinkman/hardware-configuration.nix

@@ -11,5 +11,9 @@
     nitrokey.enable = true;
     sound.enable = true;
     thunderbolt.enable = true;
+    firmware = {
+      enable = true;
+      cpuFlavor = "intel";
+    };
   };
 }

modules/hardware/default.nix

@@ -3,6 +3,7 @@
 
 {
   imports = [
+    ./firmware
     ./keychron
     ./nitrokey
     ./sound

modules/hardware/firmware/default.nix

@@ -0,0 +1,38 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.hardware.firmware;
+in
+{
+  options.my.hardware.firmware = with lib; {
+    enable = mkEnableOption "firmware configuration";
+
+    cpuFlavor = mkOption {
+      type = with types; nullOr (enum [ "intel" "amd" ]);
+      default = null;
+      example = "intel";
+      description = "Which kind of CPU to activate micro-code updates";
+    };
+  };
+
+  config = lib.mkIf cfg.enable (lib.mkMerge [
+    {
+      hardware = {
+        enableRedistributableFirmware = true;
+      };
+    }
+
+    # Intel CPU
+    (lib.mkIf (cfg.cpuFlavor == "intel") {
+      hardware = {
+        cpu.intel.updateMicrocode = true;
+      };
+    })
+
+    # AMD CPU
+    (lib.mkIf (cfg.cpuFlavor == "amd") {
+      hardware = {
+        cpu.amd.updateMicrocode = true;
+      };
+    })
+  ]);
+}