raspberry-pi-nix/overlay/raspberrypi-wireless-firmware.nix
2023-03-08 21:04:04 -05:00

48 lines
1.4 KiB
Nix

{ bluez-firmware, firmware-nonfree }:
{ lib, stdenvNoCC, fetchFromGitHub }:
stdenvNoCC.mkDerivation {
pname = "raspberrypi-wireless-firmware";
version = "2023-01-19";
srcs = [ ];
sourceRoot = ".";
dontUnpack = true;
dontBuild = true;
# Firmware blobs do not need fixing and should not be modified
dontFixup = true;
installPhase = ''
runHook preInstall
mkdir -p "$out/lib/firmware/brcm"
# Wifi firmware
cp -rv "${firmware-nonfree}/debian/config/brcm80211/." "$out/lib/firmware/"
# Bluetooth firmware
cp -rv "${bluez-firmware}/broadcom/." "$out/lib/firmware/brcm"
# CM4 symlink must be added since it's missing from upstream
pushd $out/lib/firmware/brcm &>/dev/null
# There are two options for the brcmfmac43455 binary: minimal or
# standard. For more info see the readme at:
# https://github.com/RPi-Distro/firmware-nonfree/blob/bullseye/debian/config/brcm80211/cypress/README.txt
ln -sf ../cypress/cyfmac43455-sdio-minimal.bin brcmfmac43455-sdio.bin
popd &>/dev/null
runHook postInstall
'';
meta = with lib; {
description =
"Firmware for builtin Wifi/Bluetooth devices in the Raspberry Pi 3+ and Zero W";
homepage = "https://github.com/RPi-Distro/firmware-nonfree";
license = licenses.unfreeRedistributableFirmware;
platforms = platforms.linux;
maintainers = with maintainers; [ lopsided98 ];
};
}