zaphyra's git: nixfiles

nixosModules/sapphicCfg/hardware: add module `fprint` (and enable on host `huntii`)

diff --git a/hosts/huntii/default.nix b/hosts/huntii/default.nix
@@ -24,11 +24,12 @@
         hardware = {
           video.intel.enable = true;
           cpu.updateMicrocode = true;
+          fprint.enable = true;
         };
 
         presets = {
-          katja.enable = true;
           base.enable = true;
+          katja.enable = true;
 
           graphical.enable = true;
           graphical.type = "gnomeMinimal";

diff --git a/nixosModules/sapphicCfg/hardware/fprint.nix b/nixosModules/sapphicCfg/hardware/fprint.nix
@@ -0,0 +1,54 @@
+{
+  povSelf,
+  hostConfig,
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  inherit (lib) types;
+  cfg = lib.getAttrFromPath povSelf config;
+  cfgRoot = lib.getAttrFromPath (lib.remove [ "hardware" "fpint" ] povSelf) config;
+
+in
+{
+
+  options = {
+    enable = {
+      type = types.bool;
+      default = false;
+    };
+    enableGoodixDriver = {
+      type = types.bool;
+      default = false;
+    };
+  };
+
+  config = lib.mkIf cfg.enable (lib.mkMerge [
+    {
+      services.fprintd.enable = true;
+    }
+    (
+      lib.mkIf cfg.enableGoodixDriver {
+        assertions = [
+          {
+            assertion = cfg.enableGoodixDriver -> cfgRoot.modules.unfree.enable;
+            message = ''
+              The hardware.fprint.enableGoodixDriver option uses unfree software.
+              To use it you need to set modules.unfree.enable to true.
+            '';
+          }
+        ];
+
+        sapphicCfg.modules.unfree.list = [ "libfprint-2-tod1-goodix" ];
+
+        services.fprintd.tod = {
+          enable = lib.mkDefault true;
+          driver = lib.mkDefault pkgs.libfprint-2-tod1-goodix;
+        };
+      }
+    )
+  ]);
+
+}