66 lines
1.8 KiB
Nix
66 lines
1.8 KiB
Nix
{ lib, stdenv, fetchFromGitHub, fetchpatch, kernel, runtimeShell }:
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let
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baseName = "bbswitch";
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version = "unstable-2021-11-29";
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name = "${baseName}-${version}-${kernel.version}";
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in
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stdenv.mkDerivation {
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inherit name;
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src = fetchFromGitHub {
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owner = "Bumblebee-Project";
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repo = "bbswitch";
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# https://github.com/Bumblebee-Project/bbswitch/tree/develop
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rev = "23891174a80ea79c7720bcc7048a5c2bfcde5cd9";
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hash = "sha256-50v1Jxem5kaI1dHOKmgBbPLxI82QeYxiaRHhrHpWRzU=";
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};
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patches = [
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(fetchpatch {
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url = "https://raw.githubusercontent.com/archlinux/svntogit-community/0bd986055ba52887b81048de5c61e618eec06eb0/trunk/0003-kernel-5.18.patch";
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sha256 = "sha256-va62/bR1qyBBMPg0lUwCH7slGG0XijxVCsFa4FCoHEQ=";
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})
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];
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nativeBuildInputs = kernel.moduleBuildDependencies;
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hardeningDisable = [ "pic" ];
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preBuild = ''
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substituteInPlace Makefile \
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--replace "\$(shell uname -r)" "${kernel.modDirVersion}" \
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--replace "/lib/modules" "${kernel.dev}/lib/modules"
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'';
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makeFlags = kernel.makeFlags;
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installPhase = ''
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mkdir -p $out/lib/modules/${kernel.modDirVersion}/misc
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cp bbswitch.ko $out/lib/modules/${kernel.modDirVersion}/misc
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mkdir -p $out/bin
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tee $out/bin/discrete_vga_poweroff << EOF
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#!${runtimeShell}
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echo -n OFF > /proc/acpi/bbswitch
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EOF
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tee $out/bin/discrete_vga_poweron << EOF
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#!${runtimeShell}
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echo -n ON > /proc/acpi/bbswitch
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EOF
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chmod +x $out/bin/discrete_vga_poweroff $out/bin/discrete_vga_poweron
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'';
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meta = with lib; {
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description = "A module for powering off hybrid GPUs";
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platforms = [ "x86_64-linux" "i686-linux" ];
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homepage = "https://github.com/Bumblebee-Project/bbswitch";
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maintainers = with maintainers; [ abbradar ];
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license = licenses.gpl2Plus;
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};
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}
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