From 4235bd751823613a08e2b1a77ab62bac525cb928 Mon Sep 17 00:00:00 2001
From: Bart van der Braak <bart@vanderbraak.nl>
Date: Sat, 9 Nov 2024 01:24:13 +0100
Subject: [PATCH] Refactor parts of yt6801 module

---
 tongfang/nixos/hardware-configuration.nix |  2 +-
 tongfang/nixos/yt6801/default.nix         | 41 +++++++++++++----------
 2 files changed, 25 insertions(+), 18 deletions(-)

diff --git a/tongfang/nixos/hardware-configuration.nix b/tongfang/nixos/hardware-configuration.nix
index 7179604..3789c30 100644
--- a/tongfang/nixos/hardware-configuration.nix
+++ b/tongfang/nixos/hardware-configuration.nix
@@ -5,7 +5,7 @@
 
 let
   yt6801 = import ./yt6801/default.nix {
-    inherit (pkgs) stdenv lib fetchzip bc;
+    inherit (pkgs) stdenv lib fetchzip;
     kernel = pkgs.linuxPackages.kernel;
   };
 in
diff --git a/tongfang/nixos/yt6801/default.nix b/tongfang/nixos/yt6801/default.nix
index 718af5d..8c040ac 100644
--- a/tongfang/nixos/yt6801/default.nix
+++ b/tongfang/nixos/yt6801/default.nix
@@ -1,35 +1,40 @@
-{ kernel, stdenv, lib, fetchzip, bc }:
+{
+  kernel,
+  stdenv,
+  lib,
+  fetchzip,
+}:
 
-stdenv.mkDerivation rec {
+stdenv.mkDerivation {
   pname = "yt6801";
   version = "1.0.29";
 
   src = fetchzip {
     url = "https://www.motor-comm.com/Public/Uploads/uploadfile/files/20240812/yt6801-linux-driver-1.0.29.zip";
     sha256 = "sha256-oz6CeOUN6QWKXxe3WUZljhGDTFArsknjzBuQ4IchGeU=";
+    stripRoot = false;
   };
 
-  hardeningDisable = [ "pic" "format" ];
-  KERNELDIR = "${kernel.dev}/lib/modules/${kernel.modDirVersion}";
-  nativeBuildInputs = [ bc ] ++ kernel.moduleBuildDependencies;
+  nativeBuildInputs = kernel.moduleBuildDependencies;
+
+  preConfigure = "cd src";
 
   configurePhase = "true";
 
   buildFlags = [ "modules" ];
 
-  makeFlags = [
-    "ARCH=${stdenv.hostPlatform.linuxArch}"
-    "KSRC_BASE=${KERNELDIR}"
-    "KSRC=${KERNELDIR}/build"
-    "KDST=kernel/drivers/net/ethernet/motorcomm"
-    "INSTALL_MOD_PATH=${placeholder "out"}"
-  ] ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
-    "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
-  ];
+  makeFlags =
+    [
+      "ARCH=${stdenv.hostPlatform.linuxArch}"
+      "KSRC=${kernel.dev}/lib/modules/${kernel.modDirVersion}/build"
+    ]
+    ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
+      "CROSS_COMPILE=${stdenv.cc.targetPrefix}"
+    ];
 
   installPhase = ''
     mkdir -p $out/lib/modules/${kernel.modDirVersion}/kernel/drivers/net/ethernet/motorcomm
-    find . -name "*.ko" -exec cp {} $out/lib/modules/${kernel.modDirVersion}/kernel/drivers/net/ethernet/motorcomm/ \;
+    cp src/yt6801.ko $out/lib/modules/${kernel.modDirVersion}/kernel/drivers/net/ethernet/motorcomm/
   '';
 
   enableParallelBuilding = true;
@@ -37,8 +42,10 @@ stdenv.mkDerivation rec {
   meta = with lib; {
     description = "Motorcomm yt6801 Network Interface Card driver";
     homepage = "https://www.motor-comm.com/product/ethernet-control-chip";
-    license = with licenses; [ gpl2Plus gpl2Only ];
+    license = with licenses; [
+      gpl2Plus
+      gpl2Only
+    ];
     platforms = platforms.linux;
-    maintainers = with maintainers; [ bartvdbraak ];
   };
 }