notgne2/xps_9320.nix

## xps_9320.nix
{
  config,
  pkgs,
  lib,
  inputs,
  ...
}: let
  ipu6-camera-bin = with pkgs;
    stdenv.mkDerivation rec {
      pname = "ipu6-camera-bin";
      version = "main";

      src = pkgs.fetchFromGitHub {
        owner = "intel";
        repo = "ipu6-camera-bins";
        rev = "main";
        sha256 = "sha256-XPT3dbV6Kl1/TEeiQESF4Q4s95hjtiv4VLlqlahQXqE=";
      };

      installPhase = ''
        mkdir $out
        cp -r $src/ipu6ep/* $out

        for pc in $out/lib/pkgconfig/*; do
          substituteInPlace $pc \
            --replace "exec_prefix=/usr" "exec_prefix=\''${prefix}" \
            --replace "prefix=/usr" "prefix=$out" \
            --replace "libdir=/usr/lib" "libdir=$out/lib" \
            --replace "includedir=/usr/include" "includedir=$out/include"
          done
      '';
    };

  ivsc-firmware = with pkgs;
    stdenv.mkDerivation rec {
      pname = "ivsc-firmware";
      version = "main";

      src = pkgs.fetchFromGitHub {
        owner = "intel";
        repo = "ivsc-firmware";
        rev = "main";
        sha256 = "sha256-GuD1oTnDEs0HslJjXx26DkVQIe0eS+js4UoaTDa77ME=";
      };

      installPhase = ''
        mkdir -p $out/lib/firmware/vsc/soc_a1_prod

        cp firmware/ivsc_pkg_ovti01a0_0.bin $out/lib/firmware/vsc/soc_a1_prod/ivsc_pkg_ovti01a0_0_a1_prod.bin
        cp firmware/ivsc_skucfg_ovti01a0_0_1.bin $out/lib/firmware/vsc/soc_a1_prod/ivsc_skucfg_ovti01a0_0_1_a1_prod.bin
        cp firmware/ivsc_fw.bin $out/lib/firmware/vsc/soc_a1_prod/ivsc_fw_a1_prod.bin
      '';
    };

  ipu6-camera-hal = with pkgs;
    stdenv.mkDerivation rec {
      pname = "ipu6-camera-hal";
      version = "main";

      src = pkgs.fetchFromGitHub {
        owner = "intel";
        repo = "ipu6-camera-hal";
        rev = "main";
        sha256 = "sha256-dJvTZt85rt5/v2JXOsfbSY933qffyXW74L0nWdIlqug=";
      };

      nativeBuildInputs = [cmake pkg-config];

      cmakeFlags = [
        "-DIPU_VER=ipu6ep"
        "-DENABLE_VIRTUAL_IPU_PIPE=OFF"
        "-DUSE_PG_LITE_PIPE=ON"
        "-DUSE_STATIC_GRAPH=OFF"
        "-DCMAKE_INSTALL_PREFIX=${placeholder "out"}"
        "-DCMAKE_INSTALL_LIBDIR=lib"
        "-DCMAKE_INSTALL_INCLUDEDIR=include"
      ];

      buildInputs = [
        ipu6-camera-bin

        expat.dev
        libtool
      ];
    };

  icamerasrc = with pkgs;
    stdenv.mkDerivation rec {
      pname = "icamerasrc";
      version = "icamerasrc_slim_api";

      src = pkgs.fetchFromGitHub {
        owner = "intel";
        repo = "icamerasrc";
        rev = "icamerasrc_slim_api";
        sha256 = "sha256-qlV363l4tUjUAa1LiZQq55byKpz1tLESKAXEmgiYHVo=";
      };

      nativeBuildInputs = [automake autoconf autoreconfHook pkg-config];

      # gstreamer cannot otherwise be found
      NIX_CFLAGS_COMPILE = "-I${gst_all_1.gst-plugins-base.dev}/include/gstreamer-1.0";

      CHROME_SLIM_CAMHAL = "ON";
      STRIP_VIRTUAL_CHANNEL_CAMHAL = "ON";

      buildInputs = [
        ipu6-camera-bin
        ipu6-camera-hal

        expat.dev
        libtool
        gst_all_1.gstreamer.dev
        gst_all_1.gst-plugins-base.dev
        libdrm.dev
      ];
    };

  ivsc-driver = with pkgs;
    stdenv.mkDerivation rec {
      pname = "ivsc-driver";
      version = "master";

      src = pkgs.fetchFromGitHub {
        owner = "intel";
        repo = "ivsc-driver";
        rev = "master";
        sha256 = "sha256-Q7iyKw4WFSX42E4AtoW/zYRKpknWZSU66V5VPAx6AjA=";
      };

      nativeBuildInputs = config.boot.kernelPackages.kernel.moduleBuildDependencies;

      installTargets = ["modules_install"];

      makeFlags =
        config.boot.kernelPackages.kernel.makeFlags
        ++ [
          "KERNELRELEASE=${config.boot.kernelPackages.kernel.modDirVersion}"
          "KERNEL_SRC=${config.boot.kernelPackages.kernel.dev}/lib/modules/${config.boot.kernelPackages.kernel.modDirVersion}/build"
          "INSTALL_MOD_PATH=${placeholder "out"}"
        ];
    };

  ipu6-drivers = with pkgs;
    stdenv.mkDerivation rec {
      pname = "ipu6-drivers";
      version = "master";

      src = builtins.fetchGit {
        url = "https://git.launchpad.net/~vicamo/+git/intel-ipu6-dkms";
        rev = "d44f973c27aa7dc77512f808ae84fda9846cdd4b";
        ref = "ubuntu/devel";
      };

      nativeBuildInputs = config.boot.kernelPackages.kernel.moduleBuildDependencies;

      prePatch = ''
        patches="$(echo debian/patches/*.patch)$(echo patches/*.patch)"
      '';

      installTargets = ["modules_install"];

      makeFlags =
        config.boot.kernelPackages.kernel.makeFlags
        ++ [
          "KERNELRELEASE=${config.boot.kernelPackages.kernel.modDirVersion}"
          "KERNEL_SRC=${config.boot.kernelPackages.kernel.dev}/lib/modules/${config.boot.kernelPackages.kernel.modDirVersion}/build"
          "INSTALL_MOD_PATH=${placeholder "out"}"
        ];
    };

  v4l2-relayd = with pkgs;
    stdenv.mkDerivation rec {
      pname = "v4l2-relayd";
      version = "main";

      src = pkgs.fetchFromGitLab {
        owner = "vicamo";
        repo = "v4l2-relayd";
        rev = "main";
        sha256 = "sha256-3F1ySkGOGlSIPMi+p1NFip4wOsJ0gOdi08s9oQsZsG4=";
      };

      nativeBuildInputs = [automake autoconf autoreconfHook pkg-config];

      preInstall = ''
        mkdir -p $out/lib/systemd/system $out/etc
        ${pkgs.coreutils}/bin/cp -r $src/data/etc/* $out/etc
        ${pkgs.coreutils}/bin/cp -r $src/data/systemd/* $out/lib/systemd/system
      '';

      buildInputs = [
        gst_all_1.gstreamer.dev
        gst_all_1.gst-plugins-base.dev
      ];
    };

  v4l2loopback = config.boot.kernelPackages.v4l2loopback.overrideAttrs (super: {
    src = builtins.fetchGit {
      url = "https://git.launchpad.net/ubuntu/+source/v4l2loopback";
      ref = "ubuntu/devel";
      rev = "b37d72d783e2605447858ab8bcdf80ddf5ea906a";
    };

    prePatch = ''
      patches="$(echo debian/patches/*.patch)$(echo patches/*.patch)"
    '';
  });

  webcamName = "Stupid Webcam";
in {
  imports = [
    inputs.nixos-hardware.nixosModules.common-pc-ssd
    inputs.nixos-hardware.nixosModules.common-pc-laptop

    inputs.nixos-hardware.nixosModules.common-cpu-intel
  ];

  hardware.enableAllFirmware = true;

  services.hardware.bolt.enable = true;
  services.colord.enable = true;
  services.fprintd.enable = true;

  environment.etc.camera.source = "${ipu6-camera-hal}/share/defaults/etc/camera";

  systemd.services.v4l2-relayd = {
    environment = {
      GST_PLUGIN_SYSTEM_PATH_1_0 = lib.makeSearchPathOutput "lib" "lib/gstreamer-1.0" (with pkgs.gst_all_1; [icamerasrc gstreamer gst-plugins-base gst-plugins-good]);
      LD_LIBRARY_PATH = "${ipu6-camera-bin}/lib";
    };
    script = ''
      export GST_DEBUG=2
      export DEVICE=$(grep -l -m1 -E "^${webcamName}$" /sys/devices/virtual/video4linux/*/name | cut -d/ -f6);

      exec ${v4l2-relayd}/bin/v4l2-relayd \
        --debug \
        -i "icamerasrc" \
        -o "appsrc name=appsrc caps=video/x-raw,format=NV12,width=1280,height=720,framerate=30/1 ! videoconvert ! video/x-raw,format=YUY2 ! v4l2sink name=v4l2sink device=/dev/$DEVICE"
    '';
    wantedBy = ["multi-user.target"];
    serviceConfig = {
      User = "root";
      Group = "root";
    };
  };

  hardware.firmware = [
    ipu6-camera-bin
    ivsc-firmware
  ];

  boot.extraModulePackages = [
    ipu6-drivers
    ivsc-driver
    v4l2loopback
  ];

  boot.kernelModules = [
    "v4l2loopback"
  ];

  boot.extraModprobeConfig = ''
    options v4l2loopback exclusive_caps=1 card_label="${webcamName}"
  '';
}
	{
	config,
	pkgs,
	lib,
	inputs,
	...
	}: let
	ipu6-camera-bin = with pkgs;
	stdenv.mkDerivation rec {
	pname = "ipu6-camera-bin";
	version = "main";

	src = pkgs.fetchFromGitHub {
	owner = "intel";
	repo = "ipu6-camera-bins";
	rev = "main";
	sha256 = "sha256-XPT3dbV6Kl1/TEeiQESF4Q4s95hjtiv4VLlqlahQXqE=";
	};

	installPhase = ''
	mkdir $out
	cp -r $src/ipu6ep/* $out

	for pc in $out/lib/pkgconfig/*; do
	substituteInPlace $pc \
	--replace "exec_prefix=/usr" "exec_prefix=\''${prefix}" \
	--replace "prefix=/usr" "prefix=$out" \
	--replace "libdir=/usr/lib" "libdir=$out/lib" \
	--replace "includedir=/usr/include" "includedir=$out/include"
	done
	'';
	};

	ivsc-firmware = with pkgs;
	stdenv.mkDerivation rec {
	pname = "ivsc-firmware";
	version = "main";

	src = pkgs.fetchFromGitHub {
	owner = "intel";
	repo = "ivsc-firmware";
	rev = "main";
	sha256 = "sha256-GuD1oTnDEs0HslJjXx26DkVQIe0eS+js4UoaTDa77ME=";
	};

	installPhase = ''
	mkdir -p $out/lib/firmware/vsc/soc_a1_prod

	cp firmware/ivsc_pkg_ovti01a0_0.bin $out/lib/firmware/vsc/soc_a1_prod/ivsc_pkg_ovti01a0_0_a1_prod.bin
	cp firmware/ivsc_skucfg_ovti01a0_0_1.bin $out/lib/firmware/vsc/soc_a1_prod/ivsc_skucfg_ovti01a0_0_1_a1_prod.bin
	cp firmware/ivsc_fw.bin $out/lib/firmware/vsc/soc_a1_prod/ivsc_fw_a1_prod.bin
	'';
	};

	ipu6-camera-hal = with pkgs;
	stdenv.mkDerivation rec {
	pname = "ipu6-camera-hal";
	version = "main";

	src = pkgs.fetchFromGitHub {
	owner = "intel";
	repo = "ipu6-camera-hal";
	rev = "main";
	sha256 = "sha256-dJvTZt85rt5/v2JXOsfbSY933qffyXW74L0nWdIlqug=";
	};

	nativeBuildInputs = [cmake pkg-config];

	cmakeFlags = [
	"-DIPU_VER=ipu6ep"
	"-DENABLE_VIRTUAL_IPU_PIPE=OFF"
	"-DUSE_PG_LITE_PIPE=ON"
	"-DUSE_STATIC_GRAPH=OFF"
	"-DCMAKE_INSTALL_PREFIX=${placeholder "out"}"
	"-DCMAKE_INSTALL_LIBDIR=lib"
	"-DCMAKE_INSTALL_INCLUDEDIR=include"
	];

	buildInputs = [
	ipu6-camera-bin

	expat.dev
	libtool
	];
	};

	icamerasrc = with pkgs;
	stdenv.mkDerivation rec {
	pname = "icamerasrc";
	version = "icamerasrc_slim_api";

	src = pkgs.fetchFromGitHub {
	owner = "intel";
	repo = "icamerasrc";
	rev = "icamerasrc_slim_api";
	sha256 = "sha256-qlV363l4tUjUAa1LiZQq55byKpz1tLESKAXEmgiYHVo=";
	};

	nativeBuildInputs = [automake autoconf autoreconfHook pkg-config];

	# gstreamer cannot otherwise be found
	NIX_CFLAGS_COMPILE = "-I${gst_all_1.gst-plugins-base.dev}/include/gstreamer-1.0";

	CHROME_SLIM_CAMHAL = "ON";
	STRIP_VIRTUAL_CHANNEL_CAMHAL = "ON";

	buildInputs = [
	ipu6-camera-bin
	ipu6-camera-hal

	expat.dev
	libtool
	gst_all_1.gstreamer.dev
	gst_all_1.gst-plugins-base.dev
	libdrm.dev
	];
	};

	ivsc-driver = with pkgs;
	stdenv.mkDerivation rec {
	pname = "ivsc-driver";
	version = "master";

	src = pkgs.fetchFromGitHub {
	owner = "intel";
	repo = "ivsc-driver";
	rev = "master";
	sha256 = "sha256-Q7iyKw4WFSX42E4AtoW/zYRKpknWZSU66V5VPAx6AjA=";
	};

	nativeBuildInputs = config.boot.kernelPackages.kernel.moduleBuildDependencies;

	installTargets = ["modules_install"];

	makeFlags =
	config.boot.kernelPackages.kernel.makeFlags
	++ [
	"KERNELRELEASE=${config.boot.kernelPackages.kernel.modDirVersion}"
	"KERNEL_SRC=${config.boot.kernelPackages.kernel.dev}/lib/modules/${config.boot.kernelPackages.kernel.modDirVersion}/build"
	"INSTALL_MOD_PATH=${placeholder "out"}"
	];
	};

	ipu6-drivers = with pkgs;
	stdenv.mkDerivation rec {
	pname = "ipu6-drivers";
	version = "master";

	src = builtins.fetchGit {
	url = "https://git.launchpad.net/~vicamo/+git/intel-ipu6-dkms";
	rev = "d44f973c27aa7dc77512f808ae84fda9846cdd4b";
	ref = "ubuntu/devel";
	};

	nativeBuildInputs = config.boot.kernelPackages.kernel.moduleBuildDependencies;

	prePatch = ''
	patches="$(echo debian/patches/.patch)$(echo patches/.patch)"
	'';

	installTargets = ["modules_install"];

	makeFlags =
	config.boot.kernelPackages.kernel.makeFlags
	++ [
	"KERNELRELEASE=${config.boot.kernelPackages.kernel.modDirVersion}"
	"KERNEL_SRC=${config.boot.kernelPackages.kernel.dev}/lib/modules/${config.boot.kernelPackages.kernel.modDirVersion}/build"
	"INSTALL_MOD_PATH=${placeholder "out"}"
	];
	};

	v4l2-relayd = with pkgs;
	stdenv.mkDerivation rec {
	pname = "v4l2-relayd";
	version = "main";

	src = pkgs.fetchFromGitLab {
	owner = "vicamo";
	repo = "v4l2-relayd";
	rev = "main";
	sha256 = "sha256-3F1ySkGOGlSIPMi+p1NFip4wOsJ0gOdi08s9oQsZsG4=";
	};

	nativeBuildInputs = [automake autoconf autoreconfHook pkg-config];

	preInstall = ''
	mkdir -p $out/lib/systemd/system $out/etc
	${pkgs.coreutils}/bin/cp -r $src/data/etc/* $out/etc
	${pkgs.coreutils}/bin/cp -r $src/data/systemd/* $out/lib/systemd/system
	'';

	buildInputs = [
	gst_all_1.gstreamer.dev
	gst_all_1.gst-plugins-base.dev
	];
	};

	v4l2loopback = config.boot.kernelPackages.v4l2loopback.overrideAttrs (super: {
	src = builtins.fetchGit {
	url = "https://git.launchpad.net/ubuntu/+source/v4l2loopback";
	ref = "ubuntu/devel";
	rev = "b37d72d783e2605447858ab8bcdf80ddf5ea906a";
	};

	prePatch = ''
	patches="$(echo debian/patches/.patch)$(echo patches/.patch)"
	'';
	});

	webcamName = "Stupid Webcam";
	in {
	imports = [
	inputs.nixos-hardware.nixosModules.common-pc-ssd
	inputs.nixos-hardware.nixosModules.common-pc-laptop

	inputs.nixos-hardware.nixosModules.common-cpu-intel
	];

	hardware.enableAllFirmware = true;

	services.hardware.bolt.enable = true;
	services.colord.enable = true;
	services.fprintd.enable = true;

	environment.etc.camera.source = "${ipu6-camera-hal}/share/defaults/etc/camera";

	systemd.services.v4l2-relayd = {
	environment = {
	GST_PLUGIN_SYSTEM_PATH_1_0 = lib.makeSearchPathOutput "lib" "lib/gstreamer-1.0" (with pkgs.gst_all_1; [icamerasrc gstreamer gst-plugins-base gst-plugins-good]);
	LD_LIBRARY_PATH = "${ipu6-camera-bin}/lib";
	};
	script = ''
	export GST_DEBUG=2
	export DEVICE=$(grep -l -m1 -E "^${webcamName}$" /sys/devices/virtual/video4linux/*/name \| cut -d/ -f6);

	exec ${v4l2-relayd}/bin/v4l2-relayd \
	--debug \
	-i "icamerasrc" \
	-o "appsrc name=appsrc caps=video/x-raw,format=NV12,width=1280,height=720,framerate=30/1 ! videoconvert ! video/x-raw,format=YUY2 ! v4l2sink name=v4l2sink device=/dev/$DEVICE"
	'';
	wantedBy = ["multi-user.target"];
	serviceConfig = {
	User = "root";
	Group = "root";
	};
	};

	hardware.firmware = [
	ipu6-camera-bin
	ivsc-firmware
	];

	boot.extraModulePackages = [
	ipu6-drivers
	ivsc-driver
	v4l2loopback
	];

	boot.kernelModules = [
	"v4l2loopback"
	];

	boot.extraModprobeConfig = ''
	options v4l2loopback exclusive_caps=1 card_label="${webcamName}"
	'';
	}