From c82c590f191f6c025cc5f6bc33f218e08c5da128 Mon Sep 17 00:00:00 2001 From: makefu Date: Sat, 3 Jun 2023 15:37:42 +0200 Subject: ma respeaker: init --- makefu/2configs/audio/respeaker.nix | 122 ++++++++++++++++++++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 makefu/2configs/audio/respeaker.nix (limited to 'makefu/2configs/audio/respeaker.nix') diff --git a/makefu/2configs/audio/respeaker.nix b/makefu/2configs/audio/respeaker.nix new file mode 100644 index 000000000..0aaef5dac --- /dev/null +++ b/makefu/2configs/audio/respeaker.nix @@ -0,0 +1,122 @@ +{ config, lib, pkgs, ... }: +let + seeed-voicecard = (pkgs.callPackage ../../5pkgs/seeed-voicecard { kernel = config.boot.kernelPackages.kernel; }); +in +{ + hardware.raspberry-pi."4".i2c1.enable = true; + hardware.raspberry-pi."4".audio.enable = true; + hardware.raspberry-pi."4".apply-overlays-dtmerge.enable = true; + hardware.deviceTree.filter = lib.mkForce "bcm2711-rpi-4-b.dtb"; + + security.rtkit.enable = true; + + environment.systemPackages = with pkgs; [ + alsaUtils + i2c-tools + ponymix + ]; + + sound.enable = true; + hardware.pulseaudio.enable = lib.mkForce false; + services.pipewire = { + enable = true; + systemWide = true; + alsa.enable = true; + alsa.support32Bit = true; + pulse.enable = true; + }; + + services.pipewire.config.pipewire-pulse = { + "pulse.properties"."server.address" = [ "unix:native" "tcp:4713" ]; + }; + + sound.extraConfig = '' + pcm.!default { + type asym + playback.pcm "playback" + capture.pcm "ac108" + } + + pcm.ac108 { + type plug + slave.pcm "hw:seeed4micvoicec" + } + '' ; + + + boot.extraModulePackages = [ + seeed-voicecard + ]; + boot.initrd.kernelModules = [ + "snd-soc-seeed-voicecard" + "snd-soc-ac108" + "i2c-dev" + #"i2c-bcm2708" + #"snd-soc-wm8960" + ]; + + boot.loader.raspberryPi.firmwareConfig = [ + "dtparam=i2c_arm=on" + "dtparam=i2s=on" + "dtparam=spi=on" + "dtparam=i2c1=on" + # dtoverlay=seeeed-8mic-voicecard not required because we use hardware.deviceTree + ]; + hardware.deviceTree = { + enable = true; + overlays = [ + { name = "respeaker-4mic"; dtsFile = "${seeed-voicecard}/lib/dts/seeed-4mic-voicecard-overlay.dts";} + { name = "spi"; dtsText = '' + /dts-v1/; + /plugin/; + + / { + compatible = "raspberrypi"; + fragment@0 { + target = <&spi>; + __overlay__ { + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + #address-cells = <1>; + #size-cells = <0>; + spidev@0 { + reg = <0>; // CE0 + spi-max-frequency = <500000>; + compatible = "spidev"; + }; + + spidev@1 { + reg = <1>; // CE1 + spi-max-frequency = <500000>; + compatible = "spidev"; + }; + }; + }; + fragment@1 { + target = <&alt0>; + __overlay__ { + // Drop GPIO 7, SPI 8-11 + brcm,pins = <4 5>; + }; + }; + + fragment@2 { + target = <&gpio>; + __overlay__ { + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; // alt0 + }; + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; // out + }; + }; + }; + }; + '';} + ]; + }; +} -- cgit v1.2.3