29027fd1e1
Using pkgs.lib on the spine of module evaluation is problematic because the pkgs argument depends on the result of module evaluation. To prevent an infinite recursion, pkgs and some of the modules are evaluated twice, which is inefficient. Using ‘with lib’ prevents this problem.
95 lines
2.7 KiB
Nix
95 lines
2.7 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.thinkfan;
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configFile = pkgs.writeText "thinkfan.conf" ''
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# ATTENTION: There is only very basic sanity checking on the configuration.
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# That means you can set your temperature limits as insane as you like. You
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# can do anything stupid, e.g. turn off your fan when your CPU reaches 70°C.
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#
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# That's why this program is called THINKfan: You gotta think for yourself.
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#
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######################################################################
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#
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# IBM/Lenovo Thinkpads (thinkpad_acpi, /proc/acpi/ibm)
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# ====================================================
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#
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# IMPORTANT:
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#
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# To keep your HD from overheating, you have to specify a correction value for
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# the sensor that has the HD's temperature. You need to do this because
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# thinkfan uses only the highest temperature it can find in the system, and
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# that'll most likely never be your HD, as most HDs are already out of spec
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# when they reach 55 °C.
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# Correction values are applied from left to right in the same order as the
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# temperatures are read from the file.
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#
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# For example:
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# sensor /proc/acpi/ibm/thermal (0, 0, 10)
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# will add a fixed value of 10 °C the 3rd value read from that file. Check out
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# http://www.thinkwiki.org/wiki/Thermal_Sensors to find out how much you may
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# want to add to certain temperatures.
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# Syntax:
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# (LEVEL, LOW, HIGH)
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# LEVEL is the fan level to use (0-7 with thinkpad_acpi)
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# LOW is the temperature at which to step down to the previous level
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# HIGH is the temperature at which to step up to the next level
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# All numbers are integers.
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#
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sensor ${cfg.sensor} (0, 10, 15, 2, 10, 5, 0, 3, 0, 3)
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(0, 0, 55)
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(1, 48, 60)
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(2, 50, 61)
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(3, 52, 63)
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(6, 56, 65)
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(7, 60, 85)
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(127, 80, 32767)
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'';
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in {
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options = {
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services.thinkfan = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to enable thinkfan, fan controller for ibm/lenovo thinkpads.
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'';
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};
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sensor = mkOption {
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default = "/proc/acpi/ibm/thermal";
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description =''
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Sensor used by thinkfan
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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environment.systemPackages = [ pkgs.thinkfan ];
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systemd.services.thinkfan = {
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description = "Thinkfan";
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after = [ "basic.target" ];
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wantedBy = [ "multi-user.target" ];
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path = [ pkgs.thinkfan ];
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serviceConfig.ExecStart = "${pkgs.thinkfan}/bin/thinkfan -n -c ${configFile}";
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};
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boot.extraModprobeConfig = "options thinkpad_acpi experimental=1 fan_control=1";
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};
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}
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