From 930417968f537aeded1434acf88292c29e4fcecc Mon Sep 17 00:00:00 2001
From: unexplrd <unexplrd@linerds.us>
Date: Sat, 12 Jul 2025 15:13:43 +0300
Subject: [PATCH] hosts/eldrid/cb-audio-fix: update

Signed-off-by: unexplrd <unexplrd@linerds.us>
---
 hosts/eldrid/hardware/laptop/cb-audio-fix.nix | 78 ++++++++++++++-----
 1 file changed, 59 insertions(+), 19 deletions(-)

diff --git a/hosts/eldrid/hardware/laptop/cb-audio-fix.nix b/hosts/eldrid/hardware/laptop/cb-audio-fix.nix
index 61a16a6..a42986d 100644
--- a/hosts/eldrid/hardware/laptop/cb-audio-fix.nix
+++ b/hosts/eldrid/hardware/laptop/cb-audio-fix.nix
@@ -1,20 +1,47 @@
 {pkgs, ...}: let
-  cb-ucm-conf = pkgs.alsa-ucm-conf.overrideAttrs {
-    wttsrc = pkgs.fetchFromGitHub {
-      owner = "WeirdTreeThing";
-      repo = "chromebook-ucm-conf";
-      rev = "b6ce2a7";
-      hash = "sha256-QRUKHd3RQmg1tnZU8KCW0AmDtfw/daOJ/H3XU5qWTCc=";
+  cb-ucm-conf = with pkgs;
+    alsa-ucm-conf.overrideAttrs {
+      wttsrc = fetchFromGitHub {
+        owner = "WeirdTreeThing";
+        repo = "alsa-ucm-conf-cros";
+        rev = "a4f0ed6cf59163fb571c33a81a6b40b6f53ed57d";
+        hash = "sha256-H0BsRzHSEJ6XCZB/Rvb3w+uGCzr+kAvAwcHWqYEtp6w=";
+      };
+      unpackPhase = ''
+        runHook preUnpack
+        tar xf "$src"
+        runHook postUnpack
+      '';
+
+      installPhase = ''
+        runHook preInstall
+        mkdir -p $out/share/alsa
+        cp -r alsa-ucm*/ucm2 $out/share/alsa
+        runHook postInstall
+      '';
     };
-    postInstall = ''
-      cp -R $wttsrc/common/* $out/share/alsa/ucm2/common
-      cp -R $wttsrc/codecs/* $out/share/alsa/ucm2/codecs
-      cp -R $wttsrc/platforms/* $out/share/alsa/ucm2/platforms
-      cp -R $wttsrc/sof-rt5682 $out/share/alsa/ucm2/conf.d
-      cp -R $wttsrc/sof-cs42l42 $out/share/alsa/ucm2/conf.d
-    '';
-  };
 in {
+  environment = {
+    systemPackages = [pkgs.sof-firmware];
+    sessionVariables.ALSA_CONFIG_UCM2 = "${cb-ucm-conf}/share/alsa/ucm2";
+    etc = {
+      "wireplumber/main.lua.d/51-increase-headroom.lua".text = ''
+          rule = {
+            matches = {
+              {
+                { "node.name", "matches", "alsa_output.*" },
+              },
+            },
+            apply_properties = {
+              ["api.alsa.headroom"] = 4096,
+            },
+          }
+
+        table.insert(alsa_monitor.rules,rule)
+      '';
+    };
+  };
+
   system.replaceDependencies.replacements = [
     {
       original = pkgs.alsa-ucm-conf;
@@ -22,6 +49,10 @@ in {
     }
   ];
 
+  boot.extraModprobeConfig = ''
+    options snd-intel-dspcfg dsp_driver=3
+  '';
+
   services.pipewire.wireplumber.configPackages = [
     (pkgs.writeTextDir "share/wireplumber/main.lua.d/51-increase-headroom.lua" ''
       rule = {
@@ -37,10 +68,19 @@ in {
 
       table.insert(alsa_monitor.rules,rule)
     '')
+    (pkgs.writeTextDir "share/wireplumber/main.lua.d/51-avs-dmic.lua" ''
+      rule = {
+        matches = {
+          {
+            { "node.nick", "equals", "Internal Microphone" },
+          },
+        },
+        apply_properties = {
+          ["audio.format"] = "S16LE",
+        },
+      }
+
+      table.insert(alsa_monitor.rules, rule)
+    '')
   ];
-  boot = {
-    extraModprobeConfig = ''
-      options snd-intel-dspcfg dsp_driver=3
-    '';
-  };
 }