many changes

raspberry/README.md

@@ -2,3 +2,8 @@
 - change hostname in sd-card.nix
 - add wifi psk
 - nix-build '<nixpkgs/nixos>' -A config.system.build.sdImage -I nixos-config=./sd-card.nix --argstr system aarch64-linux
+
+# raspberry Pi Zero Mutliroom audio client
+- 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

@@ -5,14 +5,14 @@
   ...
 }:
 let
-  hostName = "music-";
-  outputDevice = "Headphones";
+  hostName = "music-bedroom";
   snapserverHost = "snapcast.cloonar.com";
 in
 {
   nixpkgs.crossSystem.system = "aarch64-linux";
   imports = [
     <nixpkgs/nixos/modules/installer/sd-card/sd-image-aarch64.nix>
+    <nixos-hardware/raspberry-pi/4>
   ];
 
   networking.hostName = hostName;
@@ -21,25 +21,95 @@ in
     networks = {
       "Cloonar-Multimedia" = {
         hidden = true;
-        psk = "K2MC28Zhk$4zsx6Y";
+        psk = "";
       };
     };
   };
 
   boot = {
+    # loader.grub.enable = false;
+    # loader.raspberryPi.enable = true;
+    # loader.raspberryPi.version = 3;
     loader.raspberryPi.firmwareConfig = ''
       dtparam=audio=on
     '';
-    extraModprobeConfig = ''
-      options snd_bcm2835 enable_headphones=1
-    '';
   };
 
-  # hardware.raspberry-pi."4" = {
-  #   fkms-3d.enable = true;
-  #   audio.enable = true;
-  #   dwc2.enable = true;
-  # };
+  hardware.deviceTree.filter = "bcm2710-rpi-zero-2-w.dtb";
+  hardware.deviceTree = {
+    enable = true;
+    overlays = [
+      {
+        name = "hifiberry-dacplus";
+        dtsText = ''
+          /dts-v1/;
+          /plugin/;
+
+          / {
+            compatible = "brcm,bcm2710,bcm2837";
+
+            fragment@0 {
+              target-path = "/";
+              __overlay__ {
+                dacpro_osc: dacpro_osc {
+                  compatible = "hifiberry,dacpro-clk";
+                  #clock-cells = <0>;
+                };
+              };
+            };
+
+            fragment@1 {
+              target = <&i2s>;
+              __overlay__ {
+                status = "okay";
+              };
+            };
+
+            fragment@2 {
+              target = <&i2c1>;
+              __overlay__ {
+                #address-cells = <1>;
+                #size-cells = <0>;
+                status = "okay";
+
+                pcm5122@4d {
+                  #sound-dai-cells = <0>;
+                  compatible = "ti,pcm5122";
+                  reg = <0x4d>;
+                  clocks = <&dacpro_osc>;
+                  AVDD-supply = <&vdd_3v3_reg>;
+                  DVDD-supply = <&vdd_3v3_reg>;
+                  CPVDD-supply = <&vdd_3v3_reg>;
+                  status = "okay";
+                };
+                hpamp: hpamp@60 {
+                  compatible = "ti,tpa6130a2";
+                  reg = <0x60>;
+                  status = "disabled";
+                };
+              };
+            };
+
+            fragment@3 {
+              target = <&sound>;
+              hifiberry_dacplus: __overlay__ {
+                compatible = "hifiberry,hifiberry-dacplus";
+                i2s-controller = <&i2s>;
+                status = "okay";
+              };
+            };
+
+            __overrides__ {
+              24db_digital_gain =
+                <&hifiberry_dacplus>,"hifiberry,24db_digital_gain?";
+              slave = <&hifiberry_dacplus>,"hifiberry-dacplus,slave?";
+              leds_off = <&hifiberry_dacplus>,"hifiberry-dacplus,leds_off?";
+            };
+          };
+        '';
+      }
+    ];
+  };
 
   sound.enable = true;
 
@@ -51,7 +121,7 @@ in
 
     serviceConfig = {
       Type = "forking";
-      ExecStart = "${pkgs.snapcast}/bin/snapclient --daemon --hostID ${config.networking.hostName} -h ${snapserverHost} --player alsa -s ${outputDevice}";
+      ExecStart = "${pkgs.snapcast}/bin/snapclient --daemon --hostID ${config.networking.hostName} -h ${snapserverHost} --player alsa";
       PIDFile = "/run/snapclient/pid";
       Restart = "on-failure";
       RestartSec = "5s";