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|
{ config, pkgs, lib, ... }:
let
cfg = config.vuizvui.hardware.t100ha;
desc = "hardware support for the ASUS T100HA convertible";
in {
options.vuizvui.hardware.t100ha.enable = lib.mkEnableOption desc;
config = lib.mkIf cfg.enable {
# It's a CherryTrail SoC, so we want to have the latest and greatest with a
# few additional patches:
boot.kernelPackages = let
nixpkgs = import ../../../nixpkgs-path.nix;
mkKernel = import "${nixpkgs}/pkgs/os-specific/linux/kernel/generic.nix";
t100haKernel = mkKernel rec {
version = "4.7";
modDirVersion = "4.7.0";
extraMeta.branch = "4.7";
src = pkgs.fetchurl {
url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
sha256 = "042z53ik3mqaqlfrn5b70kw882fwd42zanqld10s1vcs438w742i";
};
kernelPatches = [
{ name = "backlight";
patch = ./backlight.patch;
}
{ name = "meta-keys";
patch = ./meta-keys.patch;
}
];
# Missing device drivers:
#
# 808622B8 -> Intel(R) Imaging Signal Processor 2401
# 808622D8 -> Intel(R) Integrated Sensor Solution
# HIMX2051 -> Camera Sensor Unicam hm2051
# IMPJ0003 -> Impinj RFID Device (MonzaX 8K)
# OVTI5670 -> Camera Sensor ov5670
#
extraConfig = ''
# CPU
MATOM y
# MMC
MMC y
MMC_BLOCK y
MMC_SDHCI y
MMC_SDHCI_ACPI y
# PMIC
INTEL_PMC_IPC y
INTEL_SOC_PMIC y
MFD_AXP20X y
MFD_AXP20X_I2C y
# GPU
AGP n
DRM y
DRM_I915 y
# Thermal
INT3406_THERMAL y
INT340X_THERMAL y
# GPIO
PINCTRL_CHERRYVIEW y
# I2C
I2C_DESIGNWARE_BAYTRAIL y
I2C_DESIGNWARE_PLATFORM y
# HID
INTEL_HID_EVENT y
# MEI
INTEL_MEI y
INTEL_MEI_TXE y
'';
features.iwlwifi = true;
features.efiBootStub = true;
features.needsCifsUtils = true;
features.canDisableNetfilterConntrackHelpers = true;
features.netfilterRPFilter = true;
inherit (pkgs) stdenv perl buildLinux;
};
self = pkgs.linuxPackagesFor t100haKernel self;
in self;
# By default the console is rotated by 90 degrees to the right.
boot.kernelParams = [ "fbcon=rotate:3" ];
services.xserver.deviceSection = ''
Option "monitor-DSI1" "Monitor[0]"
'';
services.xserver.monitorSection = ''
Option "Rotate" "left"
'';
services.xserver.videoDriver = "intel";
# The touch screen needs to be rotated as well:
services.xserver.inputClassSections = lib.singleton ''
Identifier "touchscreen"
MatchProduct "SIS0457"
Option "TransformationMatrix" "0 -1 1 1 0 0 0 0 1"
'';
# XXX: Workaround for a vblank issue that causes the display to stay blank
# until the next subsequent vblank (usually on no activity for a while until
# the monitor gets powered down).
#
# I know this is very ugly, but another mitigation would be to disable power
# management entirely, which I think is even uglier.
boot.initrd.preDeviceCommands = "fix-vblank";
boot.initrd.extraUtilsCommands = ''
cc -Wall -o "$out/bin/fix-vblank" "${pkgs.writeText "fix-vblank.c" ''
#include <sys/ioctl.h>
int main(void) {
char cmd = 14;
ioctl(0, TIOCLINUX, &cmd);
cmd = 4;
ioctl(0, TIOCLINUX, &cmd);
}
''}"
'';
};
}
|
