2008-11-23 02:29:05 +01:00
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# ALSA sound support.
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2009-10-12 19:27:57 +02:00
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{ config, pkgs, ... }:
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with pkgs.lib;
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2007-03-01 01:36:00 +01:00
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let
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2009-07-16 17:01:56 +02:00
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inherit (pkgs) alsaUtils;
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soundState = "/var/lib/alsa/asound.state";
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in
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{
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###### interface
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2011-09-14 20:20:50 +02:00
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2008-11-23 02:29:05 +01:00
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options = {
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2011-09-14 20:20:50 +02:00
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2008-11-23 02:29:05 +01:00
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sound = {
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enable = mkOption {
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default = true;
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2009-07-16 17:01:56 +02:00
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description = ''
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2008-11-23 02:29:05 +01:00
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Whether to enable ALSA sound.
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2009-07-16 17:01:56 +02:00
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'';
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2009-10-12 19:27:57 +02:00
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merge = mergeEnableOption;
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2008-11-23 02:29:05 +01:00
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};
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2011-09-14 20:20:50 +02:00
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2010-03-03 15:01:13 +01:00
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enableOSSEmulation = mkOption {
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default = true;
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2012-08-17 17:00:14 +02:00
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description = ''
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Whether to enable ALSA OSS emulation (with certain cards sound mixing may not work!).
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'';
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2010-03-03 15:01:13 +01:00
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};
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2007-03-01 01:36:00 +01:00
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2008-11-23 02:29:05 +01:00
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};
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2011-09-14 20:20:50 +02:00
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2008-11-23 02:29:05 +01:00
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};
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2009-07-16 17:01:56 +02:00
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###### implementation
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2011-09-14 20:20:50 +02:00
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2009-07-16 17:01:56 +02:00
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config = mkIf config.sound.enable {
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2011-09-14 20:20:50 +02:00
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2011-11-04 18:40:00 +01:00
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environment.systemPackages = [ alsaUtils ];
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2008-11-23 02:29:05 +01:00
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2012-10-02 17:09:54 +02:00
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# ALSA provides a udev rule for restoring volume settings.
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services.udev.packages = [ alsaUtils ];
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2008-11-23 02:29:05 +01:00
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2012-10-02 17:09:54 +02:00
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boot.kernelModules = optional config.sound.enableOSSEmulation "snd_pcm_oss";
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2007-03-01 01:36:00 +01:00
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2013-01-16 12:33:18 +01:00
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systemd.services."alsa-store" =
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2012-10-02 17:09:54 +02:00
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{ description = "Store Sound Card State";
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wantedBy = [ "shutdown.target" ];
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before = [ "shutdown.target" ];
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unitConfig.DefaultDependencies = "no";
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serviceConfig.Type = "oneshot";
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serviceConfig.ExecStart = "${alsaUtils}/sbin/alsactl store --ignore";
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2013-03-14 00:58:35 +01:00
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serviceConfig.ExecStartPre = "${pkgs.coreutils}/bin/mkdir -p /var/lib/alsa";
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2009-07-16 17:01:56 +02:00
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};
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2012-10-09 21:14:32 +02:00
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2008-11-23 02:29:05 +01:00
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};
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2007-03-01 01:36:00 +01:00
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}
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