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Diffstat (limited to 'nixos/modules/services/hardware/thinkfan.nix')
| -rw-r--r-- | nixos/modules/services/hardware/thinkfan.nix | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/nixos/modules/services/hardware/thinkfan.nix b/nixos/modules/services/hardware/thinkfan.nix new file mode 100644 index 00000000000..4ea829e496e --- /dev/null +++ b/nixos/modules/services/hardware/thinkfan.nix @@ -0,0 +1,224 @@ +{ config, lib, pkgs, ... }: + +with lib; + +let + + cfg = config.services.thinkfan; + settingsFormat = pkgs.formats.yaml { }; + configFile = settingsFormat.generate "thinkfan.yaml" cfg.settings; + thinkfan = pkgs.thinkfan.override { inherit (cfg) smartSupport; }; + + # fan-speed and temperature levels + levelType = with types; + let + tuple = ts: mkOptionType { + name = "tuple"; + merge = mergeOneOption; + check = xs: all id (zipListsWith (t: x: t.check x) ts xs); + description = "tuple of" + concatMapStrings (t: " (${t.description})") ts; + }; + level = ints.unsigned; + special = enum [ "level auto" "level full-speed" "level disengaged" ]; + in + tuple [ (either level special) level level ]; + + # sensor or fan config + sensorType = name: types.submodule { + freeformType = types.attrsOf settingsFormat.type; + options = { + type = mkOption { + type = types.enum [ "hwmon" "atasmart" "tpacpi" "nvml" ]; + description = '' + The ${name} type, can be + <literal>hwmon</literal> for standard ${name}s, + + <literal>atasmart</literal> to read the temperature via + S.M.A.R.T (requires smartSupport to be enabled), + + <literal>tpacpi</literal> for the legacy thinkpac_acpi driver, or + + <literal>nvml</literal> for the (proprietary) nVidia driver. + ''; + }; + query = mkOption { + type = types.str; + description = '' + The query string used to match one or more ${name}s: can be + a fullpath to the temperature file (single ${name}) or a fullpath + to a driver directory (multiple ${name}s). + + <note><para> + When multiple ${name}s match, the query can be restricted using the + <option>name</option> or <option>indices</option> options. + </para></note> + ''; + }; + indices = mkOption { + type = with types; nullOr (listOf ints.unsigned); + default = null; + description = '' + A list of ${name}s to pick in case multiple ${name}s match the query. + + <note><para>Indices start from 0.</para></note> + ''; + }; + } // optionalAttrs (name == "sensor") { + correction = mkOption { + type = with types; nullOr (listOf int); + default = null; + description = '' + A list of values to be added to the temperature of each sensor, + can be used to equalize small discrepancies in temperature ratings. + ''; + }; + }; + }; + + # removes NixOS special and unused attributes + sensorToConf = { type, query, ... }@args: + (filterAttrs (k: v: v != null && !(elem k ["type" "query"])) args) + // { "${type}" = query; }; + + syntaxNote = name: '' + <note><para> + This section slightly departs from the thinkfan.conf syntax. + The type and path must be specified like this: + <literal> + type = "tpacpi"; + query = "/proc/acpi/ibm/${name}"; + </literal> + instead of a single declaration like: + <literal> + - tpacpi: /proc/acpi/ibm/${name} + </literal> + </para></note> + ''; + +in { + + options = { + + services.thinkfan = { + + enable = mkOption { + type = types.bool; + default = false; + description = '' + Whether to enable thinkfan, a fan control program. + + <note><para> + This module targets IBM/Lenovo thinkpads by default, for + other hardware you will have configure it more carefully. + </para></note> + ''; + relatedPackages = [ "thinkfan" ]; + }; + + smartSupport = mkOption { + type = types.bool; + default = false; + description = '' + Whether to build thinkfan with S.M.A.R.T. support to read temperatures + directly from hard disks. + ''; + }; + + sensors = mkOption { + type = types.listOf (sensorType "sensor"); + default = [ + { type = "tpacpi"; + query = "/proc/acpi/ibm/thermal"; + } + ]; + description = '' + List of temperature sensors thinkfan will monitor. + '' + syntaxNote "thermal"; + }; + + fans = mkOption { + type = types.listOf (sensorType "fan"); + default = [ + { type = "tpacpi"; + query = "/proc/acpi/ibm/fan"; + } + ]; + description = '' + List of fans thinkfan will control. + '' + syntaxNote "fan"; + }; + + levels = mkOption { + type = types.listOf levelType; + default = [ + [0 0 55] + [1 48 60] + [2 50 61] + [3 52 63] + [6 56 65] + [7 60 85] + ["level auto" 80 32767] + ]; + description = '' + [LEVEL LOW HIGH] + + LEVEL is the fan level to use: it can be an integer (0-7 with thinkpad_acpi), + "level auto" (to keep the default firmware behavior), "level full-speed" or + "level disengaged" (to run the fan as fast as possible). + LOW is the temperature at which to step down to the previous level. + HIGH is the temperature at which to step up to the next level. + All numbers are integers. + ''; + }; + + extraArgs = mkOption { + type = types.listOf types.str; + default = [ ]; + example = [ "-b" "0" ]; + description = '' + A list of extra command line arguments to pass to thinkfan. + Check the thinkfan(1) manpage for available arguments. + ''; + }; + + settings = mkOption { + type = types.attrsOf settingsFormat.type; + default = { }; + description = '' + Thinkfan settings. Use this option to configure thinkfan + settings not exposed in a NixOS option or to bypass one. + Before changing this, read the <literal>thinkfan.conf(5)</literal> + manpage and take a look at the example config file at + <link xlink:href="https://github.com/vmatare/thinkfan/blob/master/examples/thinkfan.yaml"/> + ''; + }; + + }; + + }; + + config = mkIf cfg.enable { + + environment.systemPackages = [ thinkfan ]; + + services.thinkfan.settings = mapAttrs (k: v: mkDefault v) { + sensors = map sensorToConf cfg.sensors; + fans = map sensorToConf cfg.fans; + levels = cfg.levels; + }; + + systemd.packages = [ thinkfan ]; + + systemd.services = { + thinkfan.environment.THINKFAN_ARGS = escapeShellArgs ([ "-c" configFile ] ++ cfg.extraArgs); + + # must be added manually, see issue #81138 + thinkfan.wantedBy = [ "multi-user.target" ]; + thinkfan-wakeup.wantedBy = [ "sleep.target" ]; + thinkfan-sleep.wantedBy = [ "sleep.target" ]; + }; + + boot.extraModprobeConfig = "options thinkpad_acpi experimental=1 fan_control=1"; + + }; +} |