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nixos-hardware/framework/kmod.nix
xenia 4c0d42b582 framework: refactor kmod for improved AMD support
Changes several aspects of framework-laptop-kmod support:
- default value has been changed to true when NixOS >= 24.05 and
  linux kernel >=6.10, and false otherwise
- adds required patch for framework AMD enablement when kernel <6.10
- add README section describing usage
2024-12-01 23:04:16 -05:00

42 lines
1.5 KiB
Nix

{ config, lib, pkgs, ... }:
let
kernel_version_compatible = lib.versionAtLeast config.boot.kernelPackages.kernel.version "6.10";
in {
options.hardware.framework.enableKmod = (lib.mkEnableOption
"Enable the community created Framework kernel module that allows interacting with the embedded controller from sysfs."
) // {
# enable by default on NixOS >= 24.05 and kernel >= 6.10
default = lib.and
(lib.versionAtLeast (lib.versions.majorMinor lib.version) "24.05")
kernel_version_compatible;
};
config.boot = lib.mkIf config.hardware.framework.enableKmod {
extraModulePackages = with config.boot.kernelPackages; [
framework-laptop-kmod
];
# https://github.com/DHowett/framework-laptop-kmod?tab=readme-ov-file#usage
kernelModules = [ "cros_ec" "cros_ec_lpcs" ];
# add required patch if enabled on kernel <6.10
kernelPatches = lib.mkIf (!kernel_version_compatible) [
rec {
name = "platform/chrome: cros_ec_lpc: add support for AMD Framework Laptops";
msgid = "20240403004713.130365-1-dustin@howett.net";
version = "3";
hash = "sha256-aQSyys8CMzlj9EdNhg8vtp76fg1qEwUVeJL0E+8w5HU=";
patch = pkgs.runCommandLocal "patch-${msgid}" {
nativeBuildInputs = with pkgs; [ b4 git cacert ];
SSL_CERT_FILE = "${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt";
outputHash = hash;
} ''
export HOME="$TMP"
PYTHONHASHSEED=0 ${pkgs.b4}/bin/b4 -n am -C -T -v ${version} -o- "${msgid}" > "$out"
'';
}
];
};
}