piVCCU®

piVCCU is a project to install the original Homematic CCU2 firmware inside a virtualized container (lxc) on ARM based single board computers.

Goals

• Option to run CCU2 and other software parallel on one device
• Usage of original CCU2 or CCU3 firmware (and not OCCU)
• As compatible as possible with original CCU2
• Full Homematic and Homematic IP support on all supported platforms (if RF hardware supports it)
• Support for backup/restore between piVCCU and original CCU2 without modification
• Easy to install and update with apt
• Support not only on Raspberry
• Support for
  • HM-MOD-RPI-PCB (HmRF+HmIP),
  • RPI-RF-MOD (HmRF+HmIP, Pushbutton is not supported)
  • HmIP-RFUSB (HmIP only)
  • HM-LGW-O-TW-W-EU (HmRF only)
  • HB-RF-USB (HmRF+HmIP, piVCCU3 only)
  • HB-RF-USB-2 (HmRF+HmIP, piVCCU3 only)
  • HB-RF-ETH (HmRF+HmIP, piVCCU3 only)

Donations

Keeping this project running is very expensive, e.g. I have to buy a lot of different test devices. If you like to support this project, please consider sending me a donation via PayPal. Or you can send me a gift from my Amazon wishlist.

Prequisites

• Debian or Ubuntu based distribution
• armhf or arm64 architecture (x64 is not supported)
• At least kernel 4.14

Prequisites for HM-MOD-RPI-PCB and RPI-RF-MOD on GPIO header

• Supported Single Board Computer

  • Raspberry Pi 2B/3B/3B+/4B running Raspbian Stretch or Buster

  • Asus Tinkerboard running Armbian with Mainline kernel

  • Asus Tinkerboard S running Armbian with Mainline kernel

  • Banana Pi M1 running Armbian with Mainline kernel (LEDs of RPI-RF-MOD not supported due to incompatible GPIO pin header)

  • Banana Pi Pro running Armbian with Mainline kernel

  • Libre Computer AML-S905X-CC (Le Potato) running Armbian with Mainline kernel

  • Odroid C2 running Armbian with Mainline kernel (LEDs of RPI-RF-MOD not supported due to incompatible GPIO pin header)

  • Odroid C4 running Armbian with Mainline kernel (Experimental, LEDs of RPI-RF-MOD not supported due to incompatible GPIO pin header)

  • Orange Pi Zero, Zero Plus, R1 running Armbian with Mainline kernel (LEDs of RPI-RF-MOD not supported due to incompatible GPIO pin header)

  • Orange Pi One, 2, Lite, Plus, Plus 2, Plus 2E, PC, PC Plus running Armbian with Mainline kernel

    ⚠️ WARNING: Some models of the Orange Pi have a rotated GPIO socket. Please ensure the correct position of Pin 1!

  • NanoPC T4 running Armbian with Mainline kernel

    ⚠️ WARNING: Do not connect RPI-RF-MOD to a power source. Do connect the NanoPC to a power source only.

  • NanoPi M4 running Armbian with Mainline kernel

  • Rock Pi 4 running Armbian with Mainline kernel

  • Rock64 running Armbian with Mainline kernel (Experimental, LEDs of RPI-RF-MOD not supported due to incompatible GPIO pin header)

  • RockPro64 running Armbian with Mainline kernel

    ⚠️ WARNING: Do not connect RPI-RF-MOD to a power source. Do connect the RockPro64 to a power source only.

• Properly installed HM-MOD-RPI-PCB or RPI-RF-MOD

Pre-prepared sd card images

You can find pre-prepared sd card images here. The images are configured to use the HM-MOD-RPI-PCB or RPI-RF-MOD. If you like to use an other radio mode, please see below how to switch it. They are identical to the original distribution lite or server images but have piVCCU already installed like it is described below. Login to Raspbian based images using user 'pi' and password 'raspberry'. Login to Armbian based images using user 'root' and password '1234'.

Manual installation

• Raspberry Pi
• Armbian
• Other OS

Updating piVCCU to latest version

Use the normal apt based update mechanism:

sudo apt update && sudo apt upgrade

Supported Radio modes

• HM-MOD-RPI-PCB and RPI-RF-MOD
  • HmRF and HmIP is supported
  • Works only on Raspbian and Armbian and only on supported hardware platforms
• HmIP-RFUSB
  • Only HmIP is supported. You can add support for HmRF using a external HM-LGW-O-TW-W-EU
• Fake emulation
  • Software emulation of the HM-MOD-RPI-PCB
  • You can add support for (real) HmRF using a external HM-LGW-O-TW-W-EU
• To switch between radio modes use the following command:
  • piVCCU (CCU2 firmware)

    sudo dpkg-reconfigure pivccu

  • piVCCU3 (CCU3 firmware)

    sudo dpkg-reconfigure pivccu3

Backup

Starting with version 2.31.25-23 there is the tool pivccu-backup to create CCU2 compatible backups (inside the host). Be aware, that this is only a backup of the CCU, no settings of the host are saved.

To restore a backup file use the WebUI of the CCU.

Migrating from piVCCU (CCU2 firmware) to piVCCU3 (CCU3 firmware)

1. Create a full backup of your SD card
2. Create a CCU backup using the CCU web interface
3. Update the apt repositories

   sudo apt update

4. Remove the CCU2 firmware package

   sudo apt remove pivccu

5. Install the CCU3 firmware package

   sudo apt install pivccu3

6. Restore your CCU backup using the CCU web interface
7. Reinstall all Addons using the CCU3/RaspberryMatic versions
8. As the CCU3 firmware does a cherry picking of files beeing restored, you maybe need to restore some files by yourself (e.g. CUxD settings files).
9. If you used hook scripts or a customized lxc config, you need to apply your changes in the new directory /etc/piVCCU3 by yourself.
10. After successful migration you can delete the old piVCCU (CCU2 firmware) data using

sudo apt purge pivccu

Migration from other systems

• Original CCU2 Just restore a normal system backup using the CCU web interface. When changing to piVCCU3 you need to reinstall all Addons using the CCU3/RaspberryMatic versions. As the CCU3 firmware does a cherry picking of files beeing restored, you maybe need to restore some files by yourself (e.g. CUxD settings files).

• Original CCU3 You can only migrate to piVCCU3. Just restore a normal system backup using the CCU web interface.

• RaspberryMatic

  1. Restore a normal system backup using the CCU web interface
  2. Reinstall all addons using the CCU web interface
  3. If you previously used YAHM, please follow the instructions for removing YAHM specific configuration stuff below

• YAHM

  • Migrate to piVCCU (CCU2 firmware)
    1. Create full backup of your SD card
    2. Create system backup using CCU web interface
    3. Remove YAHM on the host (or use a plain new sd card image)

       sudo lxc-stop -n yahm
       sudo rm -f /etc/bash_completion.d/yahm_completion
       sudo rm -f /etc/init.d/hm-mod-rpi-pcb
       
       sudo rm -rf /opt/YAHM
       sudo rm -rf /var/lib/lxc/yahm
       
       sudo sed -i /boot/config.txt -e '/dtoverlay=pi3-miniuart-bt/d'
       sudo sed -i /boot/config.txt -e '/dtoverlay=pi3-miniuart-bt-overlay/d'
       sudo sed -i /boot/config.txt -e '/enable_uart=1/d'
       sudo sed -i /boot/config.txt -e '/force_turbo=1/d'
       
       sudo sed -i /etc/modules -e '/#*eq3_char_loop/d'
       sudo sed -i /etc/modules -e '/#*bcm2835_raw_uart/d'

    4. Install piVCCU as described above
    5. Restore the system backup using the CCU web interface
    6. Remove YAHM specific configuration stuff (this needs to done, even if you used a new sd card image and after every restore of a YAHM backup)

       sudo systemctl stop pivccu.service
       
       sudo rm -f /var/lib/piVCCU/userfs/etc/config/no-coprocessor-update
       sudo sed -i /var/lib/piVCCU/userfs/etc/config/rfd.conf -e 's/Improved Coprocessor Initialization = false/Improved Coprocessor Initialization = true/'
       if [ `grep -c '^Improved Coprocessor Initialization' /var/lib/piVCCU/userfs/etc/config/rfd.conf` -eq 0 ]; then sudo sed -i /var/lib/piVCCU/userfs/etc/config/rfd.conf -e 's/\(^Replacemap File.*\)/\1\nImproved Coprocessor Initialization = true\n/'; fi
       if [ `grep -c '\^[Interface 0\]' /var/lib/piVCCU/userfs/etc/config/rfd.conf` -eq 0 ]; then sudo bash -c "echo -e \"\n[Interface 0]\nType = CCU2\nComPortFile = /dev/mmd_bidcos\n#AccessFile = /dev/null\n#ResetFile = /dev/ccu2-ic200\" >> /var/lib/piVCCU/userfs/etc/config/rfd.conf"; fi
       sudo sed -i /var/lib/piVCCU/userfs/etc/config/multimacd.conf -e 's/bcm2835-raw-uart/mxs_auart_raw.0/'
       if [ `grep -c '<name>HmIP-RF</name>' /var/lib/piVCCU/userfs/etc/config/InterfacesList.xml` -eq 0 ]; then sudo bash -c "sed -i /var/lib/piVCCU/userfs/etc/config/InterfacesList.xml -e 's/\(<\/interfaces>\)/\t<ipc>\n\t\t<name>HmIP-RF<\/name>\n\t\t<url>xmlrpc:\/\/127.0.0.1:2010<\/url>\n\t\t<info>HmIP-RF<\/info>\n\t<\/ipc>\n\1/'"; fi
       sudo systemctl start pivccu.service

    7. If you used YAHM without HmIP (and only then), remove the HmIP keys to avoid migrating duplicate keys (this needs to done, even if you used a new sd card image and after every restore of a YAHM backup)

       sudo systemctl stop pivccu.service
       sudo rm -rf /var/lib/piVCCU/userfs/etc/config/crRFD/data/*
       sudo systemctl start pivccu.service

    8. If you used YAHM without radio module, you should check your interface assignments of the LAN Gateways in the control panel
  • Migrate to piVCCU3 (CCU3 firmware)
    1. Create full backup of your SD card
    2. Create system backup using CCU web interface
    3. Remove YAHM on the host (or use a plain new sd card image)

       sudo lxc-stop -n yahm
       sudo rm -f /etc/bash_completion.d/yahm_completion
       sudo rm -f /etc/init.d/hm-mod-rpi-pcb
       
       sudo rm -rf /opt/YAHM
       sudo rm -rf /var/lib/lxc/yahm
       
       sudo sed -i /boot/config.txt -e '/dtoverlay=pi3-miniuart-bt/d'
       sudo sed -i /boot/config.txt -e '/dtoverlay=pi3-miniuart-bt-overlay/d'
       sudo sed -i /boot/config.txt -e '/enable_uart=1/d'
       sudo sed -i /boot/config.txt -e '/force_turbo=1/d'
       
       sudo sed -i /etc/modules -e '/#*eq3_char_loop/d'
       sudo sed -i /etc/modules -e '/#*bcm2835_raw_uart/d'

    4. Install piVCCU3 as described above
    5. Restore the system backup using the CCU web interface
    6. Remove YAHM specific configuration stuff (this needs to done, even if you used a new sd card image and after every restore of a YAHM backup)

       sudo systemctl stop pivccu.service
       
       sudo sed -i /var/lib/piVCCU3/userfs/etc/config/rfd.conf -e 's/Improved Coprocessor Initialization = false/Improved Coprocessor Initialization = true/'
       if [ `grep -c '^Improved Coprocessor Initialization' /var/lib/piVCCU3/userfs/etc/config/rfd.conf` -eq 0 ]; then sudo sed -i /var/lib/piVCCU3/userfs/etc/config/rfd.conf -e 's/\(^Replacemap File.*\)/\1\nImproved Coprocessor Initialization = true\n/'; fi
       if [ `grep -c '\^[Interface 0\]' /var/lib/piVCCU3/userfs/etc/config/rfd.conf` -eq 0 ]; then sudo bash -c "echo -e \"\n[Interface 0]\nType = CCU2\nComPortFile = /dev/mmd_bidcos\n#AccessFile = /dev/null\n#ResetFile = /dev/ccu2-ic200\" >> /var/lib/piVCCU3/userfs/etc/config/rfd.conf"; fi
       if [ `grep -c '<name>HmIP-RF</name>' /var/lib/piVCCU3/userfs/etc/config/InterfacesList.xml` -eq 0 ]; then sudo bash -c "sed -i /var/lib/piVCCU3/userfs/etc/config/InterfacesList.xml -e 's/\(<\/interfaces>\)/\t<ipc>\n\t\t<name>HmIP-RF<\/name>\n\t\t<url>xmlrpc:\/\/127.0.0.1:2010<\/url>\n\t\t<info>HmIP-RF<\/info>\n\t<\/ipc>\n\1/'"; fi
       sudo systemctl start pivccu.service

    7. If you used YAHM without HmIP (and only then), remove the HmIP keys to avoid migrating duplicate keys (this needs to done, even if you used a new sd card image and after every restore of a YAHM backup)

       sudo systemctl stop pivccu.service
       sudo rm -rf /var/lib/piVCCU3/userfs/etc/config/crRFD/data/*
       sudo systemctl start pivccu.service

    8. As the CCU3 firmware does a cherry picking of files beeing restored, you maybe need to restore some files by yourself (e.g. CUxD settings files).
    9. If you used YAHM without radio module, you should check your interface assignments of the LAN Gateways in the control panel

Using USB devices inside container (e.g. for CUxD)

• piVCCU (CCU2 firmware)
  1. You can find available devices on the host using

     sudo pivccu-device listavailable

  2. Create a hook script on the host

     bash -c 'echo "#!/bin/bash" > /etc/piVCCU/post-start.sh'
     sudo chmod +x /etc/piVCCU/post-start.sh

  3. For each device add an entry to this hook file, e.g. here for /dev/ttyUSB0

     bash -c 'echo "pivccu-device add /dev/ttyUSB0" >> /etc/piVCCU/post-start.sh'

  4. The devices will now be available inside the container, just use them like it is described in the CUxD documentation
• piVCCU3 (CCU3 firmware) You can configure the USB devices using the installer. You can change it later using

  sudo dpkg-reconfigure pivccu3

Build packages by your own

If you like to build the .deb package by yourself

• Use Ubuntu 16.04 as build system
• Install prequisites tbd
• Clone source
• create_*.sh are the scripts to build the deb packages
• Deploy the .deb files to an apt repository e.g. using reprepro

License

piVCCU itself – the source files found in this git repository – are licensed under the conditions of the Apache License 2.0. The kernel module source files (folder kernel) and the generated kernel .deb files (raspberrypi-kernel-pivccu) licensed under the GPLv2 license instead. The generated CCU container .deb files (pivccu) are containing the original CCU2 firmware, containing multiple different licenses. Please refer to eQ-3 for more information.

Acknowledgement

The base idea of piVCCU is inspired by YAHM and lxccu.