nixos: add Turris Mox red LED configuration

2 files changed, 29 insertions, 1 deletions

diff --git a/nixos/default.nix b/nixos/default.nix
index 080ec0d..d8930eb 100644
--- a/nixos/default.nix
+++ b/nixos/default.nix
@@ -3,9 +3,10 @@ self: let
   modules = {
 
     turris-board = import ./modules/turris-board.nix;
+    turris-crossbuild = import ./modules/turris-crossbuild.nix;
     turris-defaults = import ./modules/turris-defaults.nix;
+    turris-moxled = import ./modules/turris-moxled.nix;
     turris-tarball = import ./modules/turris-tarball.nix;
-    turris-crossbuild = import ./modules/turris-crossbuild.nix;
 
     armv7l-overlay = import ./modules/armv7l-overlay.nix;
 
diff --git a/nixos/modules/turris-moxled.nix b/nixos/modules/turris-moxled.nix
new file mode 100644
index 0000000..2a40f62
--- /dev/null
+++ b/nixos/modules/turris-moxled.nix
@@ -0,0 +1,27 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+{
+
+  options = {
+    turris.moxled = mkOption {
+      type = types.bool;
+      default = true;
+      description = "Turris Mox CPU modul LED. Set to false to disable it.";
+    };
+  };
+
+  config = mkIf (config.turris.board == "mox") {
+
+    systemd.services."mox-redled" = {
+      script = if config.turris.moxled then
+          "echo heartbeat > /sys/class/leds/red/trigger"
+        else
+          "echo 0 > /sys/class/leds/red/brightness"
+          "";
+      wantedBy = [ "multi-user.target" ];
+    };
+
+  };
+}