changes

raspberry/README.md

@@ -1,5 +1,5 @@
 before building set Tempdir because of ramdisk size
-export TMPDIR=/nix/persist/user/dominik/tmp/build-sdcard
+export TMPDIR=/nix/persist/home/dominik/tmp/build-sdcard
 
 # Raspberry Pi Multiroom audio client
 - change hostname in sd-card.nix
@@ -10,3 +10,4 @@ export TMPDIR=/nix/persist/user/dominik/tmp/build-sdcard
 - change hostname in sd-card-zero.nix
 - add wifi psk
 - nix-build '<nixpkgs/nixos>' -A config.system.build.sdImage -I nixos-config=./sd-card-zero.nix --argstr system aarch64-linux
+

raspberry/sd-card-zero.nix

@@ -7,6 +7,11 @@
 let
   hostName = "music-bedroom";
   snapserverHost = "snapcast.cloonar.com";
+  # customNixpkgs = fetchTarball {
+  #   url = "https://github.com/NixOS/nixpkgs/archive/refs/tags/23.11.tar.gz";
+  #   sha256 = "sha256:1ndiv385w1qyb3b18vw13991fzb9wg4cl21wglk89grsfsnra41k";
+  # };
+  # pkgs = import customNixpkgs {};
 in
 {
   nixpkgs.hostPlatform.system = "aarch64-linux";
@@ -39,7 +44,7 @@ in
   };
   networking.firewall.logRefusedConnections = false;
 
-  boot.kernelPackages = pkgs.linuxPackages_rpi3;
+  # boot.kernelPackages = pkgs.linuxPackages_rpi3;
   # hardware.deviceTree.enable = true;
   # hardware.deviceTree.overlays = [ {
   #   name = "hifiberry-dacplus";
@@ -47,10 +52,46 @@ in
   # } ];
 
   hardware.deviceTree.filter = "bcm2708-rpi-zero*.dtb"; # This line does not change anything in this case
+  hardware.deviceTree.enable = true;
   hardware.deviceTree.overlays = [
     {
       name = "hifiberry-dacplusadc";
       dtboFile = "${pkgs.device-tree_rpi.overlays}/hifiberry-dacplus.dtbo";
+      # dtsText = ''
+      #   /dts-v1/;
+      #   /plugin/;
+      #   
+      #   / {
+      #     compatible = "brcm,bcm2835";
+      #     
+      #     fragment@0 {
+      #       target = <&i2s>;
+      #       __overlay__ {
+      #         status = "okay";
+      #       };
+      #     };
+      #     
+      #     fragment@1 {
+      #       target-path = "/";
+      #       __overlay__ {
+      #         dacplus_codec: dacplus-codec {
+      #           #sound-dai-cells = <0>;
+      #           compatible = "hifiberry,hifiberry-dacplus";
+      #           status = "okay";
+      #         };
+      #       };
+      #     };
+      #     
+      #     fragment@2 {
+      #       target = <&sound>;
+      #       __overlay__ {
+      #         compatible = "hifiberry,hifiberry-dacplus";
+      #         i2s-controller = <&i2s>;
+      #         status = "okay";
+      #       };
+      #     };
+      #   };
+      # '';
     }
   ];
 

raspberry/shell.nix

@@ -0,0 +1,19 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShellNoCC {
+  packages = with pkgs; [
+    gnumake
+    ncurses
+    pkg-config
+    flex
+    bison
+    openssl
+    bc
+    which
+    file
+  ];
+
+  shellHook = ''
+    export KCONFIG_CONFIG=.config
+  '';
+}