Teclast F5 onboard sound support for NixOS

README.md

To get onboard sound working on Teclast F5 with ES8336 codec we needs to use Linux kernel patches from SOF Project and the latest sof-firmware (v1.9).

On NixOS modify your configuration.nix like the following:

{ config, pkgs, lib, ... }:
{
  imports = [
    ./hardware-configuration.nix
    ./hardware-fixes/asoc-es8336.nix
  ];
  boot.kernelPackages = pkgs.linuxPackages_5_14;
}

asoc-es8336.nix

{ pkgs, ... }:
with pkgs;
{
  boot.kernelPatches = [
    {
      name = "ES8336 Support";
      patch = fetchurl {
        url = "https://patchwork.kernel.org/series/557373/mbox/";
        sha256 = "0dvvbb8r63d4r1n2z1scjyvwb33f5g15jffcn5ylfbcca89pfb4x";
      };
      extraConfig = ''
        SND_SOC_INTEL_SOF_ES8336_MACH m
      '';
    }
    {
      name = "ES8336 Support Hack";
      patch = fetchurl {
        url = "https://github.com/thesofproject/linux/pull/3107.patch";
        sha256 = "0pnajp23ahnd94gnghdsr97jylfafi0k61mcyip5amb0sgxgj8br";
      };
    }
  ];

  nixpkgs.overlays = [
    (self: super: {
      sof-firmware = callPackage ./sof-firmware.nix {};
    })
  ];
}

sof-firmware.nix

{ lib, stdenvNoCC, fetchFromGitHub }:
stdenvNoCC.mkDerivation rec {
  pname = "sof-firmware";
  version = "1.9";
  src = fetchFromGitHub {
    owner = "thesofproject";
    repo = "sof-bin";
    rev = "v${version}";
    sha256 = "sha256-yife3gO8lXOGwRye213II9rCQqDic7B7w1xW1o7ajF8=";
  };
  dontFixup = true;
  installPhase = ''
    runHook preInstall
    cd "v${version}.x"
    mkdir -p $out/lib/firmware/intel/
    cp -a sof-v${version} $out/lib/firmware/intel/sof
    cp -a sof-tplg-v${version} $out/lib/firmware/intel/sof-tplg
    runHook postInstall
  '';
}

Hello! When I'm trying to build this, it says that pkgs don't have linuxPackages_5_14 attribute(

Can you please pack this kernel with patches
and override new topology files into sof-firmware? Seems that only 6.0 version works ~okay
I couldn't build 5.19 version
my sof-fixes.nix:

{ config, pkgs, lib, ... }:
{
    boot.kernelPackages = pkgs.linuxPackagesFor (pkgs.linuxKernel.kernels.linux_6_0.override {
    argsOverride = rec {
      src = pkgs.fetchFromGitHub {
        owner = "thesofproject";
        repo = "linux";
        rev = "es8336-v6.0";
        hash = "sha256-bmPYvmhxlileNj8MSg3IPsyKbeOPqrv+jD+H2AfuZgI=";
      };
      modDirVersion = "6.0.0";
    };
  });
  nixpkgs = {
    overlays = [
      (self: super: {
        linuxZenWMuQSS = pkgs.linuxPackagesFor (pkgs.linuxKernel.kernels.linux_6_0.override {
          structuredExtraConfig = with lib.kernel; {
            CONFIG_SND_SOC_INTEL_SOF_ES8336_MACH=m;
            CONFIG_SND_SOC_ES8316=m;
          };
        });
      })
    ];
}

So, I just installed latest available kernel :)

boot.kernelPackages = pkgs.linuxPackages_latest;

And also added to .bash_profile these commands. If you wish, you can create a systemd service. Note: after disconnecting from bluetooth headset you have to execute the commands again. I saw an awesome script with key binding, but I can't find one again.
The default sound card did not work because the speaker/microphone was turned off in the alsa settings. It is important to use alsa directly. Apparently, the alsa pipewire bridge cannot interact with the soundcard.

@tshipenchko What commands are you use to turn on speaker/microphone?
I my case sound stopped work on latest linux kernels with es8336 patches.

@katyo
I am responding from mobile, so I will sent a link to another reply
https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/2154#note_1734052
I used these commands. Also, maybe specifying card with amixer -c 0 or -c 1 will be necessary.
Internal mic still doesn't work 😭

Sorry, looks like I didn't provided commands in previous reply :c

@tshipenchko Thanks