241 lines
7.5 KiB
Nix
241 lines
7.5 KiB
Nix
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# Upower daemon.
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{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.upower;
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in
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{
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###### interface
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options = {
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services.upower = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether to enable Upower, a DBus service that provides power
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management support to applications.
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'';
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};
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package = mkOption {
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type = types.package;
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default = pkgs.upower;
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defaultText = "pkgs.upower";
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example = lib.literalExample "pkgs.upower";
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description = ''
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Which upower package to use.
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'';
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};
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enableWattsUpPro = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Enable the Watts Up Pro device.
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The Watts Up Pro contains a generic FTDI USB device without a specific
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vendor and product ID. When we probe for WUP devices, we can cause
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the user to get a perplexing "Device or resource busy" error when
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attempting to use their non-WUP device.
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The generic FTDI device is known to also be used on:
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<itemizedlist>
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<listitem><para>Sparkfun FT232 breakout board</para></listitem>
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<listitem><para>Parallax Propeller</para></listitem>
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</itemizedlist>
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'';
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};
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noPollBatteries = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Don't poll the kernel for battery level changes.
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Some hardware will send us battery level changes through
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events, rather than us having to poll for it. This option
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allows disabling polling for hardware that sends out events.
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'';
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};
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ignoreLid = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Do we ignore the lid state
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Some laptops are broken. The lid state is either inverted, or stuck
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on or off. We can't do much to fix these problems, but this is a way
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for users to make the laptop panel vanish, a state that might be used
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by a couple of user-space daemons. On Linux systems, see also
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logind.conf(5).
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'';
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};
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usePercentageForPolicy = mkOption {
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type = types.bool;
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default = true;
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description = ''
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Policy for warnings and action based on battery levels
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Whether battery percentage based policy should be used. The default
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is to use the percentage, which
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should work around broken firmwares. It is also more reliable than
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the time left (frantically saving all your files is going to use more
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battery than letting it rest for example).
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'';
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};
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percentageLow = mkOption {
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type = types.ints.unsigned;
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default = 10;
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description = ''
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When <literal>usePercentageForPolicy</literal> is
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<literal>true</literal>, the levels at which UPower will consider the
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battery low.
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This will also be used for batteries which don't have time information
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such as that of peripherals.
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If any value (of <literal>percentageLow</literal>,
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<literal>percentageCritical</literal> and
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<literal>percentageAction</literal>) is invalid, or not in descending
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order, the defaults will be used.
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'';
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};
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percentageCritical = mkOption {
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type = types.ints.unsigned;
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default = 3;
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description = ''
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When <literal>usePercentageForPolicy</literal> is
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<literal>true</literal>, the levels at which UPower will consider the
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battery critical.
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This will also be used for batteries which don't have time information
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such as that of peripherals.
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If any value (of <literal>percentageLow</literal>,
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<literal>percentageCritical</literal> and
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<literal>percentageAction</literal>) is invalid, or not in descending
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order, the defaults will be used.
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'';
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};
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percentageAction = mkOption {
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type = types.ints.unsigned;
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default = 2;
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description = ''
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When <literal>usePercentageForPolicy</literal> is
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<literal>true</literal>, the levels at which UPower will take action
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for the critical battery level.
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This will also be used for batteries which don't have time information
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such as that of peripherals.
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If any value (of <literal>percentageLow</literal>,
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<literal>percentageCritical</literal> and
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<literal>percentageAction</literal>) is invalid, or not in descending
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order, the defaults will be used.
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'';
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};
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timeLow = mkOption {
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type = types.ints.unsigned;
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default = 1200;
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description = ''
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When <literal>usePercentageForPolicy</literal> is
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<literal>false</literal>, the time remaining at which UPower will
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consider the battery low.
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If any value (of <literal>timeLow</literal>,
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<literal>timeCritical</literal> and <literal>timeAction</literal>) is
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invalid, or not in descending order, the defaults will be used.
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'';
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};
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timeCritical = mkOption {
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type = types.ints.unsigned;
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default = 300;
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description = ''
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When <literal>usePercentageForPolicy</literal> is
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<literal>false</literal>, the time remaining at which UPower will
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consider the battery critical.
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If any value (of <literal>timeLow</literal>,
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<literal>timeCritical</literal> and <literal>timeAction</literal>) is
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invalid, or not in descending order, the defaults will be used.
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'';
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};
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timeAction = mkOption {
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type = types.ints.unsigned;
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default = 120;
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description = ''
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When <literal>usePercentageForPolicy</literal> is
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<literal>false</literal>, the time remaining at which UPower will
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take action for the critical battery level.
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If any value (of <literal>timeLow</literal>,
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<literal>timeCritical</literal> and <literal>timeAction</literal>) is
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invalid, or not in descending order, the defaults will be used.
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'';
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};
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criticalPowerAction = mkOption {
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type = types.enum [ "PowerOff" "Hibernate" "HybridSleep" ];
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default = "HybridSleep";
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description = ''
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The action to take when <literal>timeAction</literal> or
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<literal>percentageAction</literal> has been reached for the batteries
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(UPS or laptop batteries) supplying the computer
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'';
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};
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};
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};
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###### implementation
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config = mkIf cfg.enable {
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environment.systemPackages = [ cfg.package ];
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services.dbus.packages = [ cfg.package ];
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services.udev.packages = [ cfg.package ];
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systemd.packages = [ cfg.package ];
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environment.etc."UPower/UPower.conf".text = generators.toINI {} {
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UPower = {
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EnableWattsUpPro = cfg.enableWattsUpPro;
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NoPollBatteries = cfg.noPollBatteries;
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IgnoreLid = cfg.ignoreLid;
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UsePercentageForPolicy = cfg.usePercentageForPolicy;
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PercentageLow = cfg.percentageLow;
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PercentageCritical = cfg.percentageCritical;
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PercentageAction = cfg.percentageAction;
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TimeLow = cfg.timeLow;
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TimeCritical = cfg.timeCritical;
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TimeAction = cfg.timeAction;
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CriticalPowerAction = cfg.criticalPowerAction;
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};
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};
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};
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}
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