nix-config/modules/nixos/hardware/bluetooth/default.nix

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{ config, lib, pkgs, ... }:
let
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cfg = config.my.hardware.bluetooth;
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in
{
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options.my.hardware.bluetooth = with lib; {
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enable = mkEnableOption "bluetooth configuration";
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enableHeadsetIntegration = my.mkDisableOption "A2DP sink configuration";
loadExtraCodecs = my.mkDisableOption "extra audio codecs";
};
config = lib.mkIf cfg.enable (lib.mkMerge [
# Enable bluetooth devices and GUI to connect to them
{
hardware.bluetooth.enable = true;
services.blueman.enable = true;
}
# Support for additional bluetooth codecs
(lib.mkIf cfg.loadExtraCodecs {
hardware.pulseaudio = {
extraModules = [ pkgs.pulseaudio-modules-bt ];
package = pkgs.pulseaudioFull;
};
services.pipewire.wireplumber.configPackages = [
(pkgs.writeTextDir "share/wireplumber/bluetooth.lua.d/51-bluez-config.lua" ''
bluez_monitor.properties = {
-- SBC XQ provides better audio
["bluez5.enable-sbc-xq"] = true,
-- mSBC provides better audio + microphone
["bluez5.enable-msbc"] = true,
-- Synchronize volume with bluetooth device
["bluez5.enable-hw-volume"] = true,
-- FIXME: Some devices may now support both hsp_ag and hfp_ag
["bluez5.headset-roles"] = "[ hsp_hs hsp_ag hfp_hf hfp_ag ]"
}
'')
];
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})
# Support for A2DP audio profile
(lib.mkIf cfg.enableHeadsetIntegration {
hardware.bluetooth.settings = {
General = {
Enable = "Source,Sink,Media,Socket";
};
};
})
]);
}