grimm-nixos-laptop/common/hardware/laptop.nix

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{
pkgs,
config,
lib,
...
}:
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let
cfg = config.grimmShared;
in
{
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config =
with cfg;
lib.mkIf (enable && laptop_hardware.enable) {
environment.systemPackages =
with pkgs;
[
lm_sensors
lshw
pciutils
usbutils
ddcutil
python312Packages.py-cpuinfo
(writeShellScriptBin "lsiommu" ./lsiommu)
]
++ lib.optionals graphical [
opentabletdriver
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ddcui
wootility
];
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hardware.i2c.enable = true;
services.libinput.enable = true;
hardware.opentabletdriver.enable = true;
services.udisks2.enable = true;
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services.udev.extraRules = ''
SUBSYSTEM=="i2c-dev", ACTION=="add",\
ATTR{name}=="NVIDIA i2c adapter*",\
TAG+="ddcci",\
TAG+="systemd",\
ENV{SYSTEMD_WANTS}+="ddcci@$kernel.service"
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'';
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systemd.services."ddcci@" = {
scriptArgs = "%i";
script = ''
sleep 20
echo Trying to attach ddcci to $1
i=0
id=$(echo $1 | cut -d "-" -f 2)
if ${pkgs.ddcutil}/bin/ddcutil getvcp 10 -b $id; then
echo ddcci 0x37 > /sys/bus/i2c/devices/$1/new_device
fi
'';
serviceConfig.Type = "oneshot";
};
boot = {
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kernelParams = [ "quiet" ];
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loader.efi.canTouchEfiVariables = true;
initrd.availableKernelModules = [
"xhci_pci"
"ahci"
"nvme"
"usbhid"
"usb_storage"
"sd_mod"
];
loader.systemd-boot.enable = true;
extraModulePackages = [
(config.boot.kernelPackages.ddcci-driver.overrideAttrs (old: {
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patches = [
(pkgs.fetchpatch {
url = "https://gitlab.com/Sweenu/ddcci-driver-linux/-/commit/7f851f5fb8fbcd7b3a93aaedff90b27124e17a7e.patch";
hash = "sha256-Y1ktYaJTd9DtT/mwDqtjt/YasW9cVm0wI43wsQhl7Bg=";
})
];
}))
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];
kernelModules = [
"ddcci_backlight"
"i2c-dev"
"ec_sys"
];
};
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};
options.grimmShared.laptop_hardware = {
enable = lib.mkEnableOption "grimm-laptop";
};
}