nixos-config/modules/hardware/surface-pro6.nix

{ pkgs, fetchpatch, ... }:

let
  commit = "f69eefacf7304857f8c0ce7ac0ebf4971121da72";
  mkPatch = name: sha256: {
    name = name;
    patch = fetchpatch {
      name = name + ".patch";
      url = "https://raw.githubusercontent.com/linux-surface/linux-surface/${commit}/patches/5.13/${name}.patch";
      sha256 = sha256;
    };
  };
in {
  etc."ipts.conf".text = ''
    [Config]
    BlockOnPalm = true
  '';
  
  systemd.services.iptsd = {
    description = "Userspace daemon for Intel Precise Touch & Stylus";
    wantedBy = [ "multi-user.target" ];
    wants = [ "dev-ipts-15.device" ];
    after = [ "dev-ipts-15.device" ];
    serviceConfig = {
      Type = "simple";
      ExecStart = "{pkgs.iptsd}/bin/iptsd";
    };
  };
  environment.systemPackages = with pkgs; [ iptsd surface-control ];
  services.udev.packages = with pkgs; [ iptsd surface-control ];

  boot = {
    kernelPackages = pkgs.linuxPackages_5_13;
    kernelPatches = [
      (mkPatch "0001-surface3-oemb" "0mvyjczylkkrdlqh8h9msl4mb0rzgkdjvnyjg7rg0ig7yiibg5r6")
      (mkPatch "0002-mwifiex" "088gfc2skaizwz22bjha9a20pbn2isgbczy1khsgf7m4vpfhng39")
      (mkPatch "0003-ath10k" "d5f388f2b1283d646788436c7b84c83b3bb7278fc5e7fe3b4cd99533763aad08")
      (mkPatch "0004-ipts" "94295c2f4658a7b425697d2489ce393fb4281f8da6ce1bfba663ddcd8bb23ef6")
      (mkPatch "0005-surface-sam-over-hid" "445da75d34a3e04164c2c20b7744f30a762ca4a9f3c29ad1832c11b8904f6c6b")
      (mkPatch "0006-surface-sam" "098d84236e0ce65681bd32bab2924560175d71d286e98b9627bc6102100c71f9")
      (mkPatch "0007-surface-hotplug" "e120b86aa48665099207de3c2fab4cb3384148dd818a9ab5949df2499d5be031")
      (mkPatch "0008-surface-typecover" "2a0ad04bbe8661594a6cd3fff2a7a9e6e66243436b1fea8f3dcadef3b7a79fa7")
      (mkPatch "0009-cameras" "8c9d687617cae1c78dbd18edead351c9f3cd4786b6da34f4a927e51261555f85")
      (mkPatch "0010-amd-gpio" "8e30ff0ab332c05ec50e2d640a51888d8e6f0b1bb32b32a51efa1ea9ba676e06") # TODO: Maybe drop
      (mkPatch "0011-amd-s0ix" "33173ef8da66eb3ebe0b96585c751e6dd064d0947aaac41a9de97d513a038e85") # TODO: Maybe drop

      {
        name = "surface-config";
        patch = null;
        # Options from https://github.com/linux-surface/linux-surface/blob/master/configs/surface-5.13.config
        extraConfig = ''
        #
        # Surface Aggregator Module
        #
        CONFIG_SURFACE_AGGREGATOR=m
        CONFIG_SURFACE_AGGREGATOR_ERROR_INJECTION=n
        CONFIG_SURFACE_AGGREGATOR_BUS=y
        CONFIG_SURFACE_AGGREGATOR_CDEV=m
        CONFIG_SURFACE_AGGREGATOR_REGISTRY=m

        CONFIG_SURFACE_ACPI_NOTIFY=m
        CONFIG_SURFACE_DTX=m
        CONFIG_SURFACE_PLATFORM_PROFILE=m

        CONFIG_SURFACE_HID=m
        CONFIG_SURFACE_KBD=m

        CONFIG_BATTERY_SURFACE=m
        CONFIG_CHARGER_SURFACE=m

        #
        # Surface Hotplug
        #
        CONFIG_SURFACE_HOTPLUG=m

        #
        # IPTS touchscreen
        #
        # This only enables the user interface for IPTS data.
        # For the touchscreen to work, you need to install iptsd.
        #
        CONFIG_MISC_IPTS=m

        #
        # Cameras: IPU3
        #
        CONFIG_VIDEO_IPU3_IMGU=m
        CONFIG_VIDEO_IPU3_CIO2=m
        CONFIG_CIO2_BRIDGE=y
        CONFIG_INTEL_SKL_INT3472=m

        #
        # Cameras: Sensor drivers
        #
        CONFIG_VIDEO_OV5693=m
        CONFIG_VIDEO_OV8865=m

        #
        # ALS Sensor for Surface Book 3, Surface Laptop 3, Surface Pro 7
        #
        CONFIG_APDS9960=m

        #
        # Other Drivers
        #
        CONFIG_INPUT_SOC_BUTTON_ARRAY=m
        CONFIG_SURFACE_3_BUTTON=m
        CONFIG_SURFACE_3_POWER_OPREGION=m
        CONFIG_SURFACE_PRO3_BUTTON=m
        CONFIG_SURFACE_GPE=m
        CONFIG_SURFACE_BOOK1_DGPU_SWITCH=m
      '';
      }
    ]
  };
}