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-rw-r--r--nixos/modules/services/hardware/fancontrol.nix48
1 files changed, 48 insertions, 0 deletions
diff --git a/nixos/modules/services/hardware/fancontrol.nix b/nixos/modules/services/hardware/fancontrol.nix
new file mode 100644
index 00000000000..861b70970b8
--- /dev/null
+++ b/nixos/modules/services/hardware/fancontrol.nix
@@ -0,0 +1,48 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  cfg = config.hardware.fancontrol;
+  configFile = pkgs.writeText "fancontrol.conf" cfg.config;
+
+in
+{
+  options.hardware.fancontrol = {
+    enable = mkEnableOption "software fan control (requires fancontrol.config)";
+
+    config = mkOption {
+      type = types.lines;
+      description = "Required fancontrol configuration file content. See <citerefentry><refentrytitle>pwmconfig</refentrytitle><manvolnum>8</manvolnum></citerefentry> from the lm_sensors package.";
+      example = ''
+        # Configuration file generated by pwmconfig
+        INTERVAL=10
+        DEVPATH=hwmon3=devices/virtual/thermal/thermal_zone2 hwmon4=devices/platform/f71882fg.656
+        DEVNAME=hwmon3=soc_dts1 hwmon4=f71869a
+        FCTEMPS=hwmon4/device/pwm1=hwmon3/temp1_input
+        FCFANS=hwmon4/device/pwm1=hwmon4/device/fan1_input
+        MINTEMP=hwmon4/device/pwm1=35
+        MAXTEMP=hwmon4/device/pwm1=65
+        MINSTART=hwmon4/device/pwm1=150
+        MINSTOP=hwmon4/device/pwm1=0
+      '';
+    };
+  };
+
+  config = mkIf cfg.enable {
+
+    systemd.services.fancontrol = {
+      documentation = [ "man:fancontrol(8)" ];
+      description = "software fan control";
+      wantedBy = [ "multi-user.target" ];
+      after = [ "lm_sensors.service" ];
+
+      serviceConfig = {
+        Restart = "on-failure";
+        ExecStart = "${pkgs.lm_sensors}/sbin/fancontrol ${configFile}";
+      };
+    };
+  };
+
+  meta.maintainers = [ maintainers.evils ];
+}