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{ pkgs, ... }:
with pkgs;
let avrlibc = pkgsCross.avr.libcCross; in
rec {
qmkSource = fetchgit {
url = "https://github.com/qmk/qmk_firmware";
rev = "ab1650606c36f85018257aba65d9c3ff8ec42e71";
sha256 = "1k59flkvhjzmfl0yz9z37lqhvad7m9r5wy1p1sjk5274rsmylh79";
fetchSubmodules = true;
};
layout = stdenv.mkDerivation rec {
name = "ergodox_ez_grfn.hex";
src = qmkSource;
buildInputs = [
dfu-programmer
dfu-util
diffutils
git
python3
pkgsCross.avr.buildPackages.binutils
pkgsCross.avr.buildPackages.gcc
avrlibc
avrdude
];
AVR_CFLAGS = [
"-isystem ${avrlibc}/avr/include"
"-L${avrlibc}/avr/lib/avr5"
# GCC 12 has improved array-bounds warnings, failing the build of QMK.
# Newer versions of the firmware would work probably, but they heavily
# altered the build system, so it is non-trivial. Backporting the patch
# that fixes it seems difficult – the next change to the offending matrix.c
# after the pinned qmkSource commit is
# https://github.com/qmk/qmk_firmware/commit/11c308d436180974b7719ce78cdffdd83a1302c0
# which heavily changes the way the code works.
#
# TODO(grfn): address this properly
"-Wno-error=array-bounds"
];
AVR_ASFLAGS = AVR_CFLAGS;
patches = [ ./increase-tapping-delay.patch ];
postPatch = ''
mkdir keyboards/ergodox_ez/keymaps/grfn
cp ${./keymap.c} keyboards/ergodox_ez/keymaps/grfn/keymap.c
'';
buildPhase = ''
make ergodox_ez:grfn
'';
installPhase = ''
cp ergodox_ez_grfn.hex $out
'';
};
flash = writeShellScript "flash.sh" ''
${teensy-loader-cli}/bin/teensy-loader-cli \
-v \
--mcu=atmega32u4 \
-w ${layout}
'';
meta.ci.targets = [ "layout" ];
}
|
