From 6042f660fb3af2a52f5cf350cb9e1a164f5a8332 Mon Sep 17 00:00:00 2001
From: Thilo Billerbeck <thilo.billerbeck@officerent.de>
Date: Tue, 21 Nov 2023 02:31:28 +0100
Subject: [PATCH] siwtched form small, add motu m4 for pipewire

---
 configs/thilo-pc/nixos.nix         |   2 +-
 home-manager/dotfiles/motu-m4.conf | 104 +++++++++++++++++++++++++++++
 home-manager/modules/machine.nix   |   1 +
 3 files changed, 106 insertions(+), 1 deletion(-)
 create mode 100644 home-manager/dotfiles/motu-m4.conf

diff --git a/configs/thilo-pc/nixos.nix b/configs/thilo-pc/nixos.nix
index 0c776c6..4e90aab 100644
--- a/configs/thilo-pc/nixos.nix
+++ b/configs/thilo-pc/nixos.nix
@@ -20,7 +20,7 @@
   boot.loader.systemd-boot.extraInstallCommands = ''
     ${pkgs.gnused}/bin/sed -i "/default/c\default @saved" /boot/loader/loader.conf
   '';
-  # boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.kernelPackages = pkgs.linuxPackages_latest;
 
   networking.hostName = "thilo-pc";
 
diff --git a/home-manager/dotfiles/motu-m4.conf b/home-manager/dotfiles/motu-m4.conf
new file mode 100644
index 0000000..041dbf3
--- /dev/null
+++ b/home-manager/dotfiles/motu-m4.conf
@@ -0,0 +1,104 @@
+context.modules = [
+    {
+        name = libpipewire-module-loopback
+            args = {
+                node.name = "OBS"
+                node.description = "OBS"
+                capture.props = {
+                    media.class = "Audio/Sink"
+                    audio.position = [ FL FR ]
+                }
+                playback.props = {
+                    audio.position = [ FL FR ]
+                    node.target = "alsa_output.usb-MOTU_M4_M4AE167AEJ-00.analog-surround-40"
+                    stream.dont-remix = true
+                    node.passive = true
+                }
+            }
+    }
+    {
+        name = libpipewire-module-loopback
+            args = {
+                node.name = "M4 Stereo (1&2) -- Monitor & Headphones"
+                node.description = "M4 Stereo (1&2) -- Monitor & Headphones"
+                capture.props = {
+                    media.class = "Audio/Sink"
+                    audio.position = [ FL FR ]
+                }
+                playback.props = {
+                    audio.position = [ FL FR ]
+                    node.target = "alsa_output.usb-MOTU_M4_M4AE167AEJ-00.analog-surround-40"
+                    stream.dont-remix = true
+                    node.passive = true
+                }
+            }
+    }
+    {
+        name = libpipewire-module-loopback
+            args = {
+                node.name = "M4 Stereo (3&4) -- Line Out"
+                node.description = "M4 Stereo (3&4) -- Line Out"
+                capture.props = {
+                    media.class = "Audio/Sink"
+                    audio.position = [ FL FR ]
+                }
+                playback.props = {
+                    audio.position = [ RR RL ]
+                    node.target = "alsa_output.usb-MOTU_M4_M4AE167AEJ-00.analog-surround-40"
+                    stream.dont-remix = true
+                    node.passive = true
+                }
+            }
+    }
+    {
+        name = libpipewire-module-loopback
+        args = {
+            node.name = "M4 Input 1"
+            node.description = "M4 Input 1"
+            capture.props = {
+                audio.position = [ FL ]
+                stream.dont-remix = true
+                node.target = "alsa_input.usb-MOTU_M4_M4AE167AEJ-00.analog-surround-40"
+                node.passive = true
+            }
+            playback.props = {
+                media.class = "Audio/Source"
+                audio.position = [ MONO ]
+            }
+        }
+    }
+    {
+        name = libpipewire-module-loopback
+        args = {
+            node.name = "M4 Input 2"
+            node.description = "M4 Input 2"
+            capture.props = {
+                audio.position = [ FR ]
+                stream.dont-remix = true
+                node.target = "alsa_input.usb-MOTU_M4_M4AE167AEJ-00.analog-surround-40"
+                node.passive = true
+            }
+            playback.props = {
+                media.class = "Audio/Source"
+                audio.position = [ MONO ]
+            }
+        }
+    }
+    {
+        name = libpipewire-module-loopback
+        args = {
+            node.name = "M4 Input (3&4) -- Line In"
+            node.description = "M4 Input (3&4) -- Line In"
+            capture.props = {
+                audio.position = [ RL RR ]
+                stream.dont-remix = true
+                node.target = "alsa_input.usb-MOTU_M4_M4AE167AEJ-00.analog-surround-40"
+                node.passive = true
+            }
+            playback.props = {
+                media.class = "Audio/Source"
+                audio.position = [ FL FR ]
+            }
+        }
+    }
+]
\ No newline at end of file
diff --git a/home-manager/modules/machine.nix b/home-manager/modules/machine.nix
index 2bd9dd3..6da41ff 100644
--- a/home-manager/modules/machine.nix
+++ b/home-manager/modules/machine.nix
@@ -68,6 +68,7 @@ with lib;
         '';
         ".ssh/config".source = ./../dotfiles/ssh-config;
         ".gitignore".source = ./../dotfiles/.gitignore;
+        ".config/pipewire/pipewire.conf.d/98-motu-m4.conf".source = ./../dotfiles/motu-m4.conf;
         ".config/pipewire/pipewire.conf.d/99-noise-suppression.conf".text = ''
           context.modules = [{
             name = libpipewire-module-filter-chain