AGL_Demo_Control_Panel

A PyQt5 application to simulate CAN Bus signals using Kuksa.val for the AGL Demo platform. This application is to be used in parallel to the relevant AGL Images or any application that subscribes to VSS signals using Kuksa.val-server or Kuksa-databroker.

# Installation

• Clone repository:

  # Gerrit (Recommended)
  $ git clone "https://gerrit.automotivelinux.org/gerrit/src/agl-demo-control-panel"
  
  # Or GitHub
  $ git clone https://github.com/suchinton/AGL_Demo_Control_Panel.git

• Install the Python dependencies:

  • Note: If errors occure in Debian based/Rasbian OS during installation:

    $ nano requirements.txt
    # -> Comment pyqt5 dependency using "#"
    $ sudo apt install python3-pyqt5 python3-qtpy pyqt5-dev-tools python3-pyqt5.qtsvg -y

    and skip to step 2

  • Step 1

  $ python3 -m venv control-panel
  $ source control-panel/bin/activate

  • Step 2

  $ pip3 install -r requirements.txt
  $ pyrcc5 assets/res.qrc -o res_rc.py

# Usage

First, we run the kuksa-val-server on the machine, you can also run the docker image for the same. It is important to note that kuksa-val-server uses websockets and databroker uses grpc, so adjust settings accordingly.

1. Running the Docker Image for Kuksa-val-server/ kuksa databroker:

By default, the server runs on localhost, so the settings mentioned below can be used,

2. AGL Image

If you are using an AGL image (using QEMU/KVM or VirtualBox) to test the application, you need to set up a bridged network to communicate with the server. You can do so by running the setup_tap_wireless_int.sh script. The script creates a bridged network br0.

sudo bash AGL_Demo_Control_Panel/Scripts/setup_tap_wireless_int.sh

Start the QEMU instance with elevated privileges

sudo qemu-system-x86_64 ... netdev=net0, -netdev bridge, br=br0, id=net0

## for example ##
$ sudo qemu-system-x86_64 -device virtio-net-pci,netdev=net0,mac=52:54:00:12:35:02 -netdev bridge,br=br0,id=net0 \
    -drive file=agl-cluster-demo-platform-flutter-qemux86-64.ext4,if=virtio,format=raw -usb -usbdevice tablet -device virtio-rng-pci \
    -snapshot -vga virtio \
    -soundhw hda -machine q35 -cpu kvm64 -cpu qemu64,+ssse3,+sse4.1,+sse4.2,+popcnt -enable-kvm \
    -m 2048 -serial mon:vc -serial mon:stdio -serial null -kernel bzImage \
    -append 'root=/dev/vda rw console=tty0 mem=2048M ip=dhcp oprofile.timer=1 console=ttyS0,115200n8 verbose fstab=no'

Note: Make sure to update the file= argument accordingly.

• Run the server in AGL with the following command,

  $ pkill kuksa
  $ kuksa-val-server --address 0.0.0.0
  
  $ pkill databroker
  $ databroker --address 0.0.0.0 --tls-cert /etc/kuksa-val/Server.pem --tls-private-key /etc/kuksa-val/Server.key --jwt-public-key /usr/lib/python3.10/site-packages/kuksa_certificates/jwt/jwt.key.pub --vss /usr/share/vss/vss.json
  
  # To make the launch persistant  edit /etc/default/kuksa-databroker.agl
  $ vi /etc/default/kuksa-databroker.agl
  # now add `--address 0.0.0.0` to the series of arguments

Running the AGL_Demo_Control_Panel

As AGl demo control panel defaults to grpc (databroker), you can edit the default ip addres in extras/config.py to the address of the server for faster connection. (Optional)

$ cd AGL_Demo_Control_Panel
$ source control-panel/bin/activate # If using python venv
$ python -u main.py

Once the main window is visible, we go to the settings page

1. Start Client (Loads default config values)
2. Enter IP address (if running databroker locally use localhost or 127.0.0.1)
3. Reconnect
4. Connection Status
   • Red: Couldn't find the server at the specified address
   • Yellow: Faulty settings
   • Green: Connected

# Testing Against AGL Image on RPi 4

The AGL_Demo_Control_Panel can be tested against the IC application by running the agl-cluster-demo-platform-flutter image on a Raspberry Pi 4

Building for RPi 4

For building the agl-cluster-demo-platform-flutter image for the Raspberry Pi 4 please follow the steps after setting up your build environment.

source meta-agl/scripts/aglsetup.sh -f \
-m raspberrypi4 -b build-flutter-cluster agl-demo agl-devel

source agl-init-build-env

bitbake agl-cluster-demo-platform-flutter

Note: you can also add agl-demo-preload as a feature to the build to make databroker (or) kuksa-val-server run on 0.0.0.0 by default (optional)

Flashing Image to SD Card

Simply use the raspberry Pi Imager Tool to flash the custom image. You can also follow AGL's official documentation for the same.

Connecting to the Pi using Ethernet

Since the IC Flutter demo app does not provide a GUI method to find the IP address of the Pi, and also does not connect to the WiFi by default, We can enable communication using a LAN cable.

To enable the Ethernet port to find the Pi on local network, the following steps can be taken in the Gnome Settings Panel, similar settings should be available in other network configuration tools.

• Settings -> Network -> Wired -> IPv4
• IPv4 Method -> Shared to other computers

# Find IP addr of the ethernet
ip address show eno1
ping <ip-address-for-eno1>

# Resolve all available IP addresses on network, 
# recommend turning off WiFi

arp -a

ssh root@<ip-address-raspberrypi>

After successfully ssh-ing into the session, we kill the existing kuksa service (since it runs on localhost) and restart kuksa-val-server on special ip address 0.0.0.0.

$ pkill databroker
$ databroker --address 0.0.0.0

# To make databroker persistantly run on `0.0.0.0`

$ vi /etc/default/kuksa-databroker

# Demo Video

Demo_Acc.mp4