Add support for Raspberry Pi 5

The Raspberry Pi 5 does not work with upstream mesa or X server,
it needs a bump to Debian 12 and packages from raspios repos.

Change-type: minor
Signed-off-by: Michal Toman <michalt@balena.io>

Dockerfile.template

@@ -1,22 +1,10 @@
 ARG NODEJS_VERSION="16.19.1"
 
-FROM balenalib/%%BALENA_MACHINE_NAME%%-debian-node:${NODEJS_VERSION}-bullseye-run
-
-# install required packages
-RUN install_packages \
-    chromium-common \
-    chromium \
-    libgles2-mesa \
-    lsb-release \
-    mesa-vdpau-drivers \
-    scrot \
-    x11-xserver-utils \
-    xserver-xorg-input-evdev \
-    xserver-xorg-legacy \
-    xserver-xorg-video-fbdev \
-    xserver-xorg xinit \
-    xinput \
-    xterm 
+FROM balenalib/%%BALENA_MACHINE_NAME%%-debian-node:${NODEJS_VERSION}-bookworm-run
+
+# Install the necessary packages
+COPY ./build /usr/src/build
+RUN /usr/src/build/install_chromium "%%BALENA_MACHINE_NAME%%"
 
 WORKDIR /usr/src/app
 
@@ -45,8 +33,6 @@ COPY ./public-html /home/chromium
 RUN echo 'SUBSYSTEM=="vchiq",GROUP="video",MODE="0660"' > /etc/udev/rules.d/10-vchiq-permissions.rules
 RUN usermod -a -G audio,video,tty chromium
 
-RUN ln -s /usr/bin/chromium /usr/bin/chromium-browser || true
-
 # Set up the audio block. This won't have any effect if the audio block is not being used.
 RUN curl -skL https://raw.githubusercontent.com/balena-labs-projects/audio/master/scripts/alsa-bridge/debian-setup.sh| sh
 ENV PULSE_SERVER=tcp:audio:4317

balena.yml

@@ -51,5 +51,6 @@ data:
     - raspberrypi3
     - raspberrypi3-64
     - raspberrypi400-64
+    - raspberrypi5
     - intel-nuc
     - genericx86-64-ext

build/install_chromium

@@ -0,0 +1,49 @@
+#!/bin/bash
+
+# This script will install chromium to use with the browser block
+# If the device is a Raspberry Pi (any model), it will use the version
+# from the raspios repo (together with mesa and X), because
+# * Since Debian 12, the upstream chromium provided in Debian repos
+#   does not work on armv7 at all
+# * The upstream chromium will not work on devices with < 1GB memory
+#   namely the Pi3A and the PiZero2 even when using aarch64
+# * The Raspberry Pi 5 needs patched versions of mesa and X to work
+
+BASE_DIR="/usr/src/build"
+CHROMIUM_PACKAGE="chromium"
+
+MACHINE_NAME="$1"
+
+# FORCE_RPI_REPO=0 never includes the repo
+# FORCE_RPI_REPO=1 always includes the repo
+# If the machine name starts with "raspberry", or if the machine
+# is a balenaFin, include the repo
+if [ "${FORCE_RPI_REPO}" != "0" ] && [ "${FORCE_RPI_REPO}" = "1" -o "${MACHINE_NAME:0:9}" = "raspberry" -o "${MACHINE_NAME}" = "fincm3" ]
+then
+    echo "Enabling raspios repository"
+
+    cp -a "${BASE_DIR}/rpi/raspi.list" "/etc/apt/sources.list.d/"
+    cp -a "${BASE_DIR}/rpi/raspberrypi-archive-stable.gpg" "/etc/apt/trusted.gpg.d/"
+
+    # The RPi-patched chromium package is called chromium-browser
+    CHROMIUM_PACKAGE="chromium-browser"
+else
+    # The node library launches /usr/bin/chromium-browser
+    # which is not provided by the upstream package
+    ln -s /usr/bin/chromium /usr/bin/chromium-browser
+fi
+
+install_packages \
+    ${CHROMIUM_PACKAGE} \
+    chromium-common \
+    libgles2-mesa \
+    lsb-release \
+    mesa-vdpau-drivers \
+    scrot \
+    x11-xserver-utils \
+    xserver-xorg-input-evdev \
+    xserver-xorg-legacy \
+    xserver-xorg-video-fbdev \
+    xserver-xorg xinit \
+    xinput \
+    xterm

build/rpi/99-vc4.conf

@@ -0,0 +1,6 @@
+Section "OutputClass"
+    Identifier "vc4"
+    MatchDriver "vc4"
+    Driver "modesetting"
+    Option "PrimaryGPU" "true"
+EndSection

build/rpi/raspi.list

@@ -0,0 +1,3 @@
+deb http://archive.raspberrypi.com/debian/ bookworm main
+# Uncomment line below then 'apt-get update' to enable 'apt-get source'
+#deb-src http://archive.raspberrypi.com/debian/ bookworm main

src/server.js

@@ -167,6 +167,8 @@ let launchChromium = async function(url) {
       ignoreDefaultFlags: true,
       chromeFlags: flags,
       port: REMOTE_DEBUG_PORT,
+      connectionPollInterval: 1000,
+      maxConnectionRetries: 120,
       userDataDir: '1' === PERSISTENT_DATA ? '/data/chromium' : undefined
     });
 

src/start.sh

@@ -44,6 +44,16 @@ then
 	fi
 fi
 
+# Inject X11 config on the RPi 5 as the defaults do not work
+# We do this in the startup script and only for the RPi 5 because
+# we build the images per-architecture and we do not want to break
+# other aarch64-based device types
+if [ "${BALENA_DEVICE_TYPE}" = "raspberrypi5" ]
+then
+    echo "Raspberry Pi 5 detected, injecting X.org config"
+    cp -a "/usr/src/build/rpi/99-vc4.conf" "/etc/X11/xorg.conf.d/"
+fi
+
 # set up the user data area
 mkdir -p /data/chromium
 chown -R chromium:chromium /data