feat(io): Integrate com.revolutionpi.ios1 bus to daemon

Signed-off-by: Sven Sager <s.sager@kunbus.com>

.gitignore

@@ -1,7 +1,3 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 # Byte-compiled / optimized / DLL files
 __pycache__/
 *.py[cod]

.gitlab-ci.yml

@@ -1,40 +0,0 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
-default:
-  tags:
-    - self-hosted
-    - host-arm64
-    - high-perf
-
-include:
-  - project: "revolutionpi/infrastructure/ci-templates"
-    file: "base.yml"
-  - project: "revolutionpi/infrastructure/ci-templates"
-    file: "check-commit/lint-commit.yml"
-  - project: "revolutionpi/infrastructure/ci-templates"
-    file: "reuse-lint.yml"
-  - project: "revolutionpi/infrastructure/ci-templates"
-    file: "package-devel.yml"
-  - local: debian/gitlab-ci.yml
-    rules:
-      - exists:
-          - debian/gitlab-ci.yml
-
-run_tests:
-  stage: test
-  image: python:3.11-bookworm
-  script:
-    - apt-get update
-    - apt-get -y install dbus libgirepository1.0-dev
-    - dbus-uuidgen --ensure=/etc/machine-id
-    - pip install -r requirements.txt
-    - PYTHONPATH=src dbus-run-session -- pytest -v --junitxml=report.xml --cov=src --cov-report term --cov-report xml:coverage.xml
-  coverage: '/(?i)total.*? (100(?:\.0+)?\%|[1-9]?\d(?:\.\d+)?\%)$/'
-  artifacts:
-    reports:
-      junit: ${CI_PROJECT_DIR}/report.xml
-      coverage_report:
-        coverage_format: cobertura
-        path: coverage.xml

MANIFEST.in

@@ -1,7 +1,3 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 recursive-include .reuse *
 recursive-include data *
 recursive-include LICENSES *

Makefile

@@ -1,7 +1,3 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 SHELL        := bash
 MAKEFLAGS     = --no-print-directory --no-builtin-rules
 .DEFAULT_GOAL = all

README.md

@@ -1,14 +1,3 @@
-<!--
-SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-
-SPDX-License-Identifier: GPL-2.0-or-later
--->
-
 # Middleware for Revolution Pi
 
 This middleware will support D-Bus as IPC interface.
-
-## D-Bus
-
-See [docs/dbus.md](docs/dbus.md) for an overview of the standard D-Bus data
-types.

data/dbus-policy/com.revolutionpi.ios1.conf

@@ -9,7 +9,10 @@
 
     <!-- System group picontrol -->
     <policy group="picontrol">
-        <allow send_destination="com.revolutionpi.ios1"/>
+        <allow send_destination="com.revolutionpi.ios1"
+               send_interface="org.freedesktop.DBus.Introspectable"/>
+        <allow send_destination="com.revolutionpi.ios1"
+               send_interface="com.revolutionpi.middleware1.PiControl"/>
     </policy>
 
     <!-- Standard-Policy -->

data/etc/default/revpi-ios

@@ -1,8 +0,0 @@
-# Additional options that are passed to revpi-ios.
-#   add '-f /var/log/revpi-ios.log' to write logs to own log file
-#   add '-v' or '-vv' for verbose logging
-
-DAEMON_OPTS=""
-
-# In addition to journalctl, use your own additional log file
-# DAEMON_OPTS="-f /var/log/revpi-ios.log"

data/etc/logrotate/revpi-ios

@@ -1,14 +0,0 @@
-/var/log/revpi-ios.log
-{
-    rotate 6
-    weekly
-    maxsize 1M
-    compress
-    delaycompress
-    missingok
-    notifempty
-    sharedscripts
-    postrotate
-        systemctl kill --signal=SIGUSR1 revpi-ios > /dev/null 2>&1 || true
-    endscript
-}

data/examples/io_controller.py

@@ -1,59 +1,40 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""Switches 14 outputs on a DIO to the same value as the first input."""
-
-from time import perf_counter
+from time import time
 
 from gi.repository import GLib
 from pydbus import SystemBus
 
 detected_signal = False
-timestamp = perf_counter()
+timestamp = time()
 
-# Get system bus
 bus = SystemBus()
+bus_revpi = bus.get("com.revolutionpi.ios1", "/com/revolutionpi/ios1")
+interface = bus_revpi["com.revolutionpi.ios1.IoManager"]
 
-# Get IoManager interface on ios1 bus
-iface_io_manager = bus.get(
-    "com.revolutionpi.ios1",
-    "/com/revolutionpi/ios1",
-)["com.revolutionpi.ios1.IoManager"]
+io_o_1_path = interface.Get("O_1")
+io_revpiled_path = interface.Get("RevPiLED")
 
-# Query object path of RevPiLED output
-path_revpi_led = iface_io_manager.Get("RevPiLED")
-
-# Get Output interface in the queried object path.
-out_RevPiLED = bus.get("com.revolutionpi.ios1", path_revpi_led)["com.revolutionpi.ios1.Output"]
-
-# Get all 14 outputs
-lst_path_outputs = [iface_io_manager.Get(f"O_{i}") for i in range(1, 15)]
-lst_out_outputs = [
-    bus.get("com.revolutionpi.ios1", path)["com.revolutionpi.ios1.Output"]
-    for path in lst_path_outputs
-]
+io_RevPiLED = bus.get("com.revolutionpi.ios1", io_revpiled_path)
+io_O_1 = bus.get("com.revolutionpi.ios1", io_o_1_path)
 
 
 def signal_handler(io_name, io_value):
     global timestamp
 
     print(f"Signal received: {io_name} = {io_value}")
-
-    if io_name == "O_14":
-        print(f"Time since input detection: {perf_counter() - timestamp}")
+    if io_name == "O_1":
+        timestamp = time()
+        io_RevPiLED.Set("com.revolutionpi.ios1.OutInt", "value", GLib.Variant("i", int(io_value)))
 
     elif io_name == "I_1":
-        timestamp = perf_counter()
-
-        out_RevPiLED.SetValue(GLib.Variant("i", io_value))
-        for output in lst_out_outputs:
-            output.SetValue(GLib.Variant("b", io_value))
+        io_RevPiLED.Set("com.revolutionpi.ios1.OutInt", "value", GLib.Variant("i", int(io_value)))
+        io_O_1.Set("com.revolutionpi.ios1.OutBool", "value", GLib.Variant("b", not io_value))
+        print(time() - timestamp)
 
 
-# Start change detection to fire signals on dbus
-iface_io_manager.ActivateIoSignals()
+# Start event detection
+interface.ActivateIoEvents()
 
-iface_io_manager.onIoChanged = signal_handler
+interface.onIoChanged = signal_handler
 
 try:
     loop = GLib.MainLoop()
@@ -61,5 +42,5 @@ try:
 except KeyboardInterrupt:
     pass
 
-# Stop change detection
-iface_io_manager.DeactivateIoSignals()
+# Stop event detection
+interface.DeactivateIoEvents()

data/systemd/before_253/revpi-ios.service

@@ -1,12 +0,0 @@
-[Unit]
-Description=D-Bus interface for Inputs/Outputs of Revolution Pi
-
-[Service]
-EnvironmentFile=-/etc/default/revpi-ios
-Type=notify
-NotifyAccess=all
-ExecStart=/usr/sbin/revpi-middleware ios $DAEMON_OPTS
-ExecReload=/bin/kill -HUP $MAINPID
-
-[Install]
-WantedBy=multi-user.target

data/systemd/from_253/revpi-ios.service

@@ -1,11 +0,0 @@
-[Unit]
-Description=D-Bus interface for Inputs/Outputs of Revolution Pi
-
-[Service]
-EnvironmentFile=-/etc/default/revpi-ios
-Type=notify-reload
-NotifyAccess=all
-ExecStart=/usr/sbin/revpi-middleware ios $DAEMON_OPTS
-
-[Install]
-WantedBy=multi-user.target

docs/dbus.md

@@ -1,51 +0,0 @@
-<!--
-SPDX-FileCopyrightText: 2026 KUNBUS GmbH <support@kunbus.com>
-
-SPDX-License-Identifier: GPL-2.0-or-later
--->
-
-# D-Bus
-
-## Datentypen
-
-Hier ist eine **Liste der standardisierten D‑Bus-Datentypen** (Signaturen), wie
-sie u. a. in Introspection/XML (`type="..."`) verwendet werden.
-
-## Basis-Typen (Basic Types)
-
-| Signatur | Bedeutung                           |
-|----------|-------------------------------------|
-| `y`      | Byte (unsigned 8-bit)               |
-| `b`      | Boolean                             |
-| `n`      | Int16 (signed)                      |
-| `q`      | UInt16 (unsigned)                   |
-| `i`      | Int32 (signed)                      |
-| `u`      | UInt32 (unsigned)                   |
-| `x`      | Int64 (signed)                      |
-| `t`      | UInt64 (unsigned)                   |
-| `d`      | Double (IEEE 754)                   |
-| `s`      | String (UTF‑8)                      |
-| `o`      | Object Path                         |
-| `g`      | Signature (Typ-Signatur als String) |
-
-## Container-Typen (Compound/Container)
-
-| Form       | Bedeutung                                       | Beispiel                        |
-|------------|-------------------------------------------------|---------------------------------|
-| `aX`       | Array von `X`                                   | `as` = Array von Strings        |
-| `(XYZ...)` | Struct/Tupel                                    | `(is)` = (Int32, String)        |
-| `{KV}`     | Dict-Entry (nur innerhalb eines Arrays erlaubt) | `a{sv}` = Dict String → Variant |
-
-## Spezial-Typ
-
-| Signatur | Bedeutung                                         |
-|----------|---------------------------------------------------|
-| `v`      | Variant (beliebiger Typ, zur Laufzeit festgelegt) |
-
-## Häufig genutzte Kombis (Praxis)
-
-- `as` → Liste von Strings
-- `ao` → Liste von Object Paths
-- `a{sv}` → „Properties“-Map (String → Variant), sehr verbreitet bei
-  `org.freedesktop.DBus.Properties`
-- `a{ss}` → String → String Map

examples/revpi-config

@@ -1,100 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-from argparse import ArgumentParser, SUPPRESS
-from typing import NamedTuple
-
-from pydbus import SessionBus, SystemBus
-
-FeatureMapping = NamedTuple("FeatureMapping", [("dbus_interface", str), ("name", str)])
-
-REVPI_DBUS_NAME = "com.revolutionpi.middleware1"
-REVPI_DBUS_BASE_PATH = "/com/revolutionpi/middleware1"
-IFACE_SOFTWARE_SERVICES = "com.revolutionpi.middleware1.SoftwareServices"
-IFACE_REVPI_CONFIG = "com.revolutionpi.middleware1.RevpiConfig"
-
-REVPI_FEATURE_MAPPINGS = {
-    "gui": FeatureMapping(IFACE_REVPI_CONFIG, "gui"),
-    "revpi-con-can": FeatureMapping(IFACE_REVPI_CONFIG, "revpi-con-can"),
-    "dphys-swapfile": FeatureMapping(IFACE_REVPI_CONFIG, "swapfile"),
-    "pimodbus-master": FeatureMapping(IFACE_SOFTWARE_SERVICES, "pimodbus-master"),
-    "pimodbus-slave": FeatureMapping(IFACE_SOFTWARE_SERVICES, "pimodbus-slave"),
-    "systemd-timesyncd": FeatureMapping(IFACE_SOFTWARE_SERVICES, "ntp"),
-    "ssh": FeatureMapping(IFACE_SOFTWARE_SERVICES, "ssh"),
-    "nodered": FeatureMapping(IFACE_SOFTWARE_SERVICES, "nodered"),
-    "noderedrevpinodes-server": FeatureMapping(IFACE_SOFTWARE_SERVICES, "noderedrevpinodes-server"),
-    "revpipyload": FeatureMapping(IFACE_SOFTWARE_SERVICES, "revpipyload"),
-    "bluetooth": FeatureMapping(IFACE_REVPI_CONFIG, "bluetooth"),
-    "ieee80211": FeatureMapping(IFACE_REVPI_CONFIG, "wlan"),
-    "avahi": FeatureMapping(IFACE_SOFTWARE_SERVICES, "avahi"),
-    "external-antenna": FeatureMapping(IFACE_REVPI_CONFIG, "external-antenna"),
-}
-
-# Generate command arguments
-parser = ArgumentParser(
-    prog="revpi-config",
-    description="Configuration tool for Revolution Pi.",
-)
-parser.add_argument(
-    "--use-session-bus",
-    dest="use_session_bus",
-    action="store_true",
-    default=False,
-    help=SUPPRESS,
-)
-parser.add_argument(
-    "action",
-    choices=["enable", "disable", "status", "available", "availstat"],
-    help="Action to be executed: enable, disable, status or available.",
-)
-parser.add_argument(
-    "feature",
-    nargs="*",
-    help="Name of the feature to configure.",
-)
-args = parser.parse_args()
-
-# Init dbus
-bus = SessionBus() if args.use_session_bus else SystemBus()
-revpi_middleware = bus.get(REVPI_DBUS_NAME, REVPI_DBUS_BASE_PATH)
-
-lst_results = []
-for feature in args.feature:
-
-    # Get the mappings
-    feature_mapping = REVPI_FEATURE_MAPPINGS.get(feature, None)
-
-    if feature_mapping is None:
-        if args.action in ("enable", "disable"):
-            # Missing feature with action enable/disable will return 5
-            lst_results.append(5)
-        elif args.action == "availstat":
-            # Missing feature with action availstat will return 2
-            lst_results.append(2)
-        else:
-            # Missing feature with action status/available will return 0
-            lst_results.append(0)
-
-        continue
-
-    dbus_interface = revpi_middleware[feature_mapping.dbus_interface]
-
-    if args.action == "enable":
-        dbus_interface.Enable(feature_mapping.name)
-        lst_results.append(0)
-
-    elif args.action == "disable":
-        dbus_interface.Disable(feature_mapping.name)
-        lst_results.append(0)
-
-    elif args.action in ("status", "availstat"):
-        status = dbus_interface.GetStatus(feature_mapping.name)
-        lst_results.append(int(status))
-
-    elif args.action == "available":
-        availability = dbus_interface.GetAvailability(feature_mapping.name)
-        lst_results.append(int(availability))
-
-if lst_results:
-    print(" ".join(map(str, lst_results)))

pyproject.toml

@@ -1,6 +1,2 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 [tool.black]
 line-length = 100

requirements.txt

@@ -1,7 +1,3 @@
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH <support@kunbus.com>
-#
-# SPDX-License-Identifier: GPL-2.0-or-later
-
 # Build dependencies
 pip-licenses
 Pyinstaller

src/revpi_middleware/__about__.py

@@ -2,7 +2,6 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """Metadata of package."""
-
 __author__ = "Sven Sager"
 __copyright__ = "Copyright (C) 2025 KUNBUS GmbH"
 __license__ = " GPL-2.0-or-later"

src/revpi_middleware/__init__.py

@@ -2,5 +2,4 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """Package: revpi_middleware."""
-
 from .__about__ import __author__, __copyright__, __license__, __version__

src/revpi_middleware/cli_commands/__init__.py

@@ -2,5 +2,4 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """CLI commands to control revpi_middleware."""
-
 from ..__about__ import __author__, __copyright__, __license__, __version__

src/revpi_middleware/cli_commands/cli_base.py

@@ -5,7 +5,6 @@
 This module provides the foundation for the RevPi middleware CLI commands
 and argument parsing setup.
 """
-
 from logging import getLogger
 
 from . import cli_config, cli_picontrol

src/revpi_middleware/cli_commands/cli_config.py

@@ -1,7 +1,6 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """Command-Line for the picontrol object of CLI."""
-
 from argparse import ArgumentParser
 from logging import getLogger
 

src/revpi_middleware/cli_commands/cli_picontrol.py

@@ -1,7 +1,6 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """Command-Line for the picontrol object of CLI."""
-
 from argparse import ArgumentParser
 from logging import getLogger
 

src/revpi_middleware/cli_commands/dbus_helper.py

@@ -1,7 +1,6 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus helper functions for cli commands."""
-
 from enum import Enum
 from threading import Thread
 from time import sleep

src/revpi_middleware/daemon.py

@@ -3,43 +3,31 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 """Main daemon of revpi-middleware."""
 
-from enum import Enum
 from logging import getLogger
-from os import environ
 from threading import Event
 from time import perf_counter
 
-from gi.repository import Gio
-
 from . import proginit as pi
-from .dbus_ios1 import BusProviderIos1
-from .dbus_middleware1 import BusProviderMiddleware1
-from .dbus_middleware1.process_image.process_image_helper import ResetDriverWatchdog
+from .dbus_middleware1.bus_provider import BusProvider
+from .ios1.bus_provider_io import BusProviderIo
 
 log = getLogger(__name__)
 
 
-class BusProvider(Enum):
-    middleware = "middleware"
-    ios = "ios"
-
-
 class MiddlewareDaemon:
     """Main program of MiddlewareDaemon class."""
 
-    def __init__(self, bus_provider: BusProvider):
+    def __init__(self):
         """Init MiddlewareDaemon class."""
         log.debug("enter MiddlewareDaemon.__init__")
 
         self._cycle_time = 1.0
         self.do_cycle = Event()
-        self._force_dbus_restart = False
         self._reconfigure = False
         self._running = True
 
         self.bus_provider = None
-        self.bus_provider_selected = bus_provider
-        self.wd_reset = ResetDriverWatchdog("")
+        self.io_bus_provider = None
 
         self._configure()
         log.debug("leave MiddlewareDaemon.__init__")
@@ -49,58 +37,21 @@ class MiddlewareDaemon:
         log.debug("enter MiddlewareDaemon._configure")
         pi.reload_conf()
 
-        if self._force_dbus_restart:
-            self.dbus_stop()
-        self._force_dbus_restart = False
-
-        if pi.pargs.procimg != self.wd_reset.procimg:
-            self.dbus_stop()
-
-            self.wd_reset.stop()
-            self.wd_reset = ResetDriverWatchdog(pi.pargs.procimg)
-            self.wd_reset.register_call(self._reset_driver_callack)
-
         log.debug("leave MiddlewareDaemon._configure")
 
-    @staticmethod
-    def _get_bus_address() -> str:
-        if pi.pargs.use_session_bus:
-            environ_name = "DBUS_SESSION_BUS_ADDRESS"
-            bus_address = Gio.dbus_address_get_for_bus_sync(Gio.BusType.SESSION)
-        else:
-            environ_name = "DBUS_SYSTEM_BUS_ADDRESS"
-            bus_address = Gio.dbus_address_get_for_bus_sync(Gio.BusType.SYSTEM)
-
-        return environ.get(environ_name, bus_address)
-
-    def _reset_driver_callack(self, *args) -> None:
-        log.debug("enter MiddlewareDaemon._reset_driver_callack")
-
-        if self.bus_provider_selected is BusProvider.ios:
-            self._force_dbus_restart = True
-            self.reload_config()
-
-        log.debug("leave MiddlewareDaemon._reset_driver_callack")
-
     def dbus_start(self):
         log.debug("enter MiddlewareDaemon.dbus_start")
 
-        dbus_running = self.bus_provider and self.bus_provider.is_alive()
-        if not dbus_running:
-            if self.bus_provider_selected is BusProvider.middleware:
-                self.bus_provider = BusProviderMiddleware1(
-                    dbus_address=self._get_bus_address(),
-                    picontrol_device=pi.pargs.procimg,
-                )
-            elif self.bus_provider_selected is BusProvider.ios:
-                self.bus_provider = BusProviderIos1(
-                    dbus_address=self._get_bus_address(),
-                    picontrol_device=pi.pargs.procimg,
-                )
-            else:
-                raise ValueError("Unknown bus provider")
+        dbus_middleware_running = self.bus_provider and self.bus_provider.is_alive()
+        if not dbus_middleware_running:
+            self.bus_provider = BusProvider(use_system_bus=not pi.pargs.use_session_bus)
             self.bus_provider.start()
 
+        dbus_io_middleware_running = self.io_bus_provider and self.io_bus_provider.is_alive()
+        if not dbus_io_middleware_running:
+            self.io_bus_provider = BusProviderIo(use_system_bus=not pi.pargs.use_session_bus)
+            self.io_bus_provider.start()
+
         log.debug("leave MiddlewareDaemon.dbus_start")
 
     def dbus_stop(self):
@@ -110,7 +61,13 @@ class MiddlewareDaemon:
             self.bus_provider.stop()
             self.bus_provider.join(timeout=10.0)
             if self.bus_provider.is_alive():
-                log.warning(f"dbus {self.bus_provider.name} thread is still alive")
+                log.warning("dbus provider thread is still alive")
+
+        if self.io_bus_provider:
+            self.io_bus_provider.stop()
+            self.io_bus_provider.join(timeout=10.0)
+            if self.io_bus_provider.is_alive():
+                log.warning("dbus io provider thread is still alive")
 
         log.debug("leave MiddlewareDaemon.dbus_stop")
 
@@ -141,6 +98,7 @@ class MiddlewareDaemon:
         # Startup tasks
         self.dbus_start()
 
+        pi.startup_complete()
         # Go into mainloop of daemon
         while self._running:
             ot = perf_counter()
@@ -150,13 +108,6 @@ class MiddlewareDaemon:
             if self._reconfigure:
                 self._configure()
                 self._reconfigure = False
-
-            # Monitor bus providers for errors and restart them
-            if not (self.bus_provider and self.bus_provider.is_alive()):
-                log.warning(f"dbus {self.bus_provider.name} thread is not alive - restarting")
-                self.dbus_start()
-
-            if self.bus_provider and self.bus_provider.published.is_set():
                 pi.startup_complete()
 
             # Cycle time calculation

src/revpi_middleware/dbus_ios1/bus_provider_ios1.py

@@ -1,121 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""D-Bus bus provider for revpi_middleware."""
-
-from logging import getLogger
-from threading import Thread, Event
-
-import revpimodio2
-from gi.repository import GLib
-from pydbus import connect
-
-from . import REVPI_DBUS_NAME
-from .interface_devices import (
-    InterfaceDeviceManager,
-    InterfaceDevice,
-)
-from .interface_ios import (
-    InterfaceIoManager,
-    InterfaceInput,
-    InterfaceOutput,
-)
-
-log = getLogger(__name__)
-
-
-class BusProviderIos1(Thread):
-
-    def __init__(
-        self,
-        dbus_address: str,
-        picontrol_device="/dev/piControl0",
-        config_rsc="/etc/revpi/config.rsc",
-    ):
-        log.debug("enter BusProviderIos1.__init__")
-        super().__init__()
-
-        self._bus_address = dbus_address
-        self._loop = GLib.MainLoop()
-        self._lst_device_interfaces = []
-        self._lst_io_interfaces = []
-        self._modio = revpimodio2.RevPiModIO(
-            procimg=picontrol_device,
-            configrsc=config_rsc,
-            shared_procimg=True,
-        )
-
-        self.picontrol_device = picontrol_device
-        self.published = Event()
-        self.config_rsc = config_rsc
-
-    def run(self):
-        log.debug("enter BusProviderIos1.run")
-        bus = connect(self._bus_address)
-
-        self._lst_device_interfaces.clear()
-        self._lst_io_interfaces.clear()
-
-        for device in self._modio.device:
-            self._lst_device_interfaces.append(
-                InterfaceDevice(bus, device),
-            )
-
-        for io in self._modio.io:
-            interface = None
-            try:
-                if io.type == revpimodio2.INP:
-                    interface = InterfaceInput(bus, io)
-                elif io.type == revpimodio2.OUT:
-                    interface = InterfaceOutput(bus, io)
-                elif io.type == revpimodio2.MEM:
-                    # todo: Implement memory
-                    pass
-            except Exception as e:
-                log.warning(f"can not create dbus interface for {io.name}: {e}")
-
-            if interface is not None:
-                self._lst_io_interfaces.append(interface)
-
-        lst_interfaces = []
-        lst_interfaces += [
-            (interface.object_path, interface) for interface in self._lst_device_interfaces
-        ]
-        lst_interfaces += [
-            (interface.object_path, interface) for interface in self._lst_io_interfaces
-        ]
-        try:
-            bus.publish(
-                REVPI_DBUS_NAME,
-                InterfaceDeviceManager(self._lst_device_interfaces),
-                InterfaceIoManager(self._lst_io_interfaces, self._modio),
-                *lst_interfaces,
-            )
-            self.published.set()
-            log.info(f"published {REVPI_DBUS_NAME} on {self._bus_address}")
-        except Exception as e:
-            log.error(f"can not publish dbus {REVPI_DBUS_NAME}: {e}")
-
-        try:
-            self._loop.run()
-        except Exception as e:
-            log.error(f"can not run dbus mainloop: {e}")
-
-        bus.con.close()
-        self._modio.cleanup()
-        log.info(f"closed {REVPI_DBUS_NAME} connection to {self._bus_address}")
-
-        log.debug("leave BusProviderIos1.run")
-
-    def stop(self):
-        log.debug("enter BusProviderIos1.stop")
-        self._loop.quit()
-        log.debug("leave BusProviderIos1.stop")
-
-    @property
-    def name(self) -> str:
-        return REVPI_DBUS_NAME
-
-    @property
-    def running(self):
-        return self._loop.is_running()

src/revpi_middleware/dbus_ios1/interface_devices.py

@@ -1,133 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""D-Bus interfaces for IOs."""
-
-from pydbus.bus import Bus
-from pydbus.generic import signal
-from revpimodio2.device import Device
-
-from .ios1_helper import get_io_object_path, get_device_object_path
-
-
-class InterfaceDevice:
-    """
-    <node>
-        <interface name="com.revolutionpi.ios1.Device">
-            <method name="GetDeviceInputs">
-                <arg name="object-path-list" type="ao" direction="out"/>
-            </method>
-            <method name="GetDeviceOutputs">
-                <arg name="object-path-list" type="ao" direction="out"/>
-            </method>
-            <property name="bmk" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="catalognr" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="comment" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="id" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="name" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="position" type="n" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="type" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-        </interface>
-    </node>
-    """
-
-    interface_name = "com.revolutionpi.ios1.Device"
-    PropertiesChanged = signal()
-
-    def __init__(self, dbus: Bus, device: Device):
-        self.dbus = dbus
-        self.device = device
-        self.object_path = get_device_object_path(device)
-
-    def GetDeviceInputs(self) -> list[str]:
-        return [get_io_object_path(io) for io in self.device.get_inputs()]
-
-    def GetDeviceOutputs(self) -> list[str]:
-        return [get_io_object_path(io) for io in self.device.get_outputs()]
-
-    @property
-    def bmk(self) -> str:
-        return self.device.bmk
-
-    @property
-    def catalognr(self):
-        return self.device.catalognr
-
-    @property
-    def comment(self):
-        return self.device.comment
-
-    @property
-    def id(self):
-        return self.device.id
-
-    @property
-    def name(self) -> str:
-        return self.device.name
-
-    @property
-    def position(self) -> int:
-        return self.device.position
-
-    @property
-    def type(self):
-        return self.device.type
-
-
-class InterfaceDeviceManager:
-    """
-    <node>
-        <interface name="com.revolutionpi.ios1.DeviceManager">
-            <method name="GetAllDevices">
-                <arg type="ao" direction="out"/>
-            </method>
-            <method name="GetByName">
-                <arg name="device-name" type="s" direction="in"/>
-                <arg name="object-path" type="o" direction="out"/>
-            </method>
-            <method name="GetByPosition">
-                <arg name="device-position" type="n" direction="in"/>
-                <arg name="object-path" type="o" direction="out"/>
-            </method>
-        </interface>
-    </node>
-    """
-
-    interface_name = "com.revolutionpi.ios1.DeviceManager"
-
-    def __init__(
-        self,
-        device_interfaces: list[InterfaceDevice],
-    ):
-        self._lst_device_interfaces = device_interfaces
-
-    def GetAllDevices(self) -> list[str]:
-        return [interface.object_path for interface in self._lst_device_interfaces]
-
-    def GetByName(self, device_name) -> str:
-        for interface in self._lst_device_interfaces:
-            if interface.device.name == device_name:
-                return interface.object_path
-
-        raise KeyError(f"No device with name '{device_name}' found.")
-
-    def GetByPosition(self, device_position) -> str:
-        for interface in self._lst_device_interfaces:
-            if interface.device.position == device_position:
-                return interface.object_path
-
-        raise KeyError(f"No device on position '{device_position}' found.")

src/revpi_middleware/dbus_ios1/interface_ios.py

@@ -1,306 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""D-Bus interfaces for IOs."""
-
-from typing import Union, List
-
-from pydbus import Variant
-from pydbus.bus import Bus
-from pydbus.generic import signal
-from revpimodio2 import RevPiModIO, Cycletools, INP, OUT
-from revpimodio2.io import IOBase
-
-from .ios1_helper import get_io_object_path, get_variant_type
-
-
-class InterfaceInput:
-    """
-    <node>
-        <interface name="com.revolutionpi.ios1.Input">
-            <method name="SetByteorder">
-                <arg name="order" type="s" direction="in"/>
-            </method>
-            <method name="SetSigned">
-                <arg name="signed" type="b" direction="in"/>
-            </method>
-            <property name="address" type="n" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="bmk" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="bitaddress" type="n" access="readwrite">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="byteorder" type="s" access="readwrite">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="invalidates"/>
-            </property>
-            <property name="defaultvalue" type="v" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="length" type="q" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="name" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="signed" type="b" access="readwrite">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="invalidates"/>
-            </property>
-            <property name="value" type="v" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="true"/>
-            </property>
-        </interface>
-    </node>
-    """
-
-    interface_name = "com.revolutionpi.ios1.Input"
-    PropertiesChanged = signal()
-
-    def __init__(self, dbus: Bus, io: IOBase):
-        self._raw = False
-        self.dbus = dbus
-        self.io = io
-        self.object_path = get_io_object_path(io)
-        try:
-            self.variant_type = get_variant_type(self.io)
-        except ValueError:
-            # Fallback to bytes if the integer is too large
-            self._raw = True
-            self.variant_type = "ay"
-
-    def emit_io_change(self):
-        self.PropertiesChanged(
-            self.interface_name,
-            {
-                "value": Variant(
-                    self.variant_type,
-                    self.io.get_value() if self._raw else self.io.value,
-                ),
-            },
-            [],
-        )
-
-    def SetByteorder(self, order: str) -> None:
-        self.byteorder = order
-
-    def SetSigned(self, signed: bool) -> None:
-        self.signed = signed
-
-    @property
-    def address(self) -> int:
-        return self.io.address
-
-    @property
-    def bmk(self) -> str:
-        return self.io.bmk
-
-    @property
-    def bitaddress(self) -> int:
-        return self.io._bitaddress
-
-    @property
-    def byteorder(self) -> str:
-        return self.io.byteorder
-
-    @byteorder.setter
-    def byteorder(self, value: str) -> None:
-        if hasattr(self.io, "_set_byteorder"):
-            self.io._set_byteorder(value)
-            self.variant_type = get_variant_type(self.io)
-
-            # Changing the byteorder can change the value, but we do NOT send a signal for that
-            # because the real value of the process image was not changed. But we inform the client
-            # about the changed byteorder property.
-            self.PropertiesChanged(
-                self.interface_name,
-                {},
-                ["byteorder"],
-            )
-
-    @property
-    def defaultvalue(self) -> Variant:
-        return Variant(
-            self.variant_type,
-            self.io.get_value() if self._raw else self.io.defaultvalue,
-        )
-
-    @property
-    def length(self) -> int:
-        # 0 length for boolean
-        return 0 if self.variant_type == "b" else self.io.length
-
-    @property
-    def name(self) -> str:
-        return self.io.name
-
-    @property
-    def signed(self) -> bool:
-        if hasattr(self.io, "signed"):
-            return self.io.signed
-        return False
-
-    @signed.setter
-    def signed(self, value: bool) -> None:
-        if hasattr(self.io, "_set_signed"):
-            self.io._set_signed(value)
-            self.variant_type = get_variant_type(self.io)
-
-            # Changing the signedness can change the value, but we do NOT send a signal for that
-            # because the real value of the process image was not changed. But we inform the client
-            # about the changed signedness property.
-            self.PropertiesChanged(
-                self.interface_name,
-                {},
-                ["signed"],
-            )
-
-    @property
-    def value(self) -> Variant:
-        if not self.io._parentdevice._selfupdate:
-            self.io._parentdevice.readprocimg()
-
-        return Variant(
-            self.variant_type,
-            self.io.get_value() if self._raw else self.io.value,
-        )
-
-
-class InterfaceOutput(InterfaceInput):
-    """
-    <node>
-        <interface name="com.revolutionpi.ios1.Output">
-            <method name="SetByteorder">
-                <arg name="order" type="s" direction="in"/>
-            </method>
-            <method name="SetSigned">
-                <arg name="signed" type="b" direction="in"/>
-            </method>
-            <method name="SetValue">
-                <arg name="value" type="v" direction="in"/>
-            </method>
-            <property name="address" type="n" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="bmk" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="bitaddress" type="n" access="readwrite">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="byteorder" type="s" access="readwrite">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="invalidates"/>
-            </property>
-            <property name="defaultvalue" type="v" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="length" type="q" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="name" type="s" access="read">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="const"/>
-            </property>
-            <property name="signed" type="b" access="readwrite">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="invalidates"/>
-            </property>
-            <property name="value" type="v" access="readwrite">
-                <annotation name="org.freedesktop.DBus.Property.EmitsChangedSignal" value="true"/>
-            </property>
-        </interface>
-    </node>
-    """
-
-    interface_name = "com.revolutionpi.ios1.Output"
-
-    def SetValue(self, value: Variant) -> None:
-        self.value = value
-
-    @property
-    def value(self) -> Variant:
-        return super().value
-
-    @value.setter
-    def value(self, value: Variant) -> None:
-        if self._raw:
-            self.io.set_value(value)
-        else:
-            self.io.value = value
-        if not self.io._parentdevice._selfupdate:
-            self.io._parentdevice.writeprocimg()
-
-
-class InterfaceIoManager:
-    """
-    <node>
-        <interface name="com.revolutionpi.ios1.IoManager">
-            <method name="GetAllInputs">
-                <arg name="object-path-list" type="ao" direction="out"/>
-            </method>
-            <method name="GetAllOutputs">
-                <arg name="object-path-list" type="ao" direction="out"/>
-            </method>
-            <method name="GetByName">
-                <arg name="name" type="s" direction="in"/>
-                <arg name="object-path" type="o" direction="out"/>
-            </method>
-            <method name="ActivateIoSignals">
-            </method>
-            <method name="DeactivateIoSignals">
-            </method>
-            <signal name="IoChanged">
-                <arg name="name" type="s" direction="out"/>
-                <arg name="value" type="v" direction="out"/>
-            </signal>
-        </interface>
-    </node>
-    """
-
-    interface_name = "com.revolutionpi.ios1.IoManager"
-    IoChanged = signal()
-
-    def __init__(
-        self,
-        io_interfaces: List[Union[InterfaceInput, InterfaceOutput]],
-        modio: RevPiModIO,
-    ):
-        self._dc_io_interfaces = {interface.name: interface for interface in io_interfaces}
-        self.modio = modio
-
-        self.lst_inp_object_path = []
-        self.lst_out_object_path = []
-        for interface in io_interfaces:
-            if interface.io.type == INP:
-                self.lst_inp_object_path.append(interface.object_path)
-            elif interface.io.type == OUT:
-                self.lst_out_object_path.append(interface.object_path)
-
-    def _modio_cycle(self, ct: Cycletools) -> None:
-        for io_name in self._dc_io_interfaces:
-            interface = self._dc_io_interfaces[io_name]
-            if ct.changed(interface.io):
-                interface.emit_io_change()
-                self.IoChanged(
-                    interface.io.name,
-                    Variant(interface.variant_type, interface.io.value),
-                )
-
-    def GetAllInputs(self) -> list[str]:
-        return self.lst_inp_object_path
-
-    def GetAllOutputs(self) -> list[str]:
-        return self.lst_out_object_path
-
-    def GetByName(self, io_name) -> str:
-        if io_name in self._dc_io_interfaces:
-            return self._dc_io_interfaces[io_name].object_path
-
-        raise KeyError(f"No IO with name '{io_name}' found.")
-
-    def ActivateIoSignals(self) -> None:
-        if not self.modio._looprunning:
-            self.modio.autorefresh_all()
-            self.modio.cycleloop(self._modio_cycle, cycletime=50, blocking=False)
-
-    def DeactivateIoSignals(self) -> None:
-        self.modio.exit(False)

src/revpi_middleware/dbus_ios1/ios1_helper.py

@@ -1,51 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""Helper for io read and write."""
-
-from logging import getLogger
-
-from revpimodio2.device import Device
-from revpimodio2.io import IOBase
-
-log = getLogger(__name__)
-
-REVPI_DBUS_NAME = "com.revolutionpi.ios1"
-REVPI_DBUS_BASE_PATH = "/com/revolutionpi/ios1"
-
-
-def get_io_object_path(io: IOBase) -> str:
-    return f"{REVPI_DBUS_BASE_PATH}/io/{io.name}"
-
-
-def get_device_object_path(device: Device) -> str:
-    return f"{REVPI_DBUS_BASE_PATH}/device/{device.position}"
-
-
-def get_variant_type(io: IOBase) -> str:
-    value_type = type(io.value)
-    byte_length = io.length
-    signed = io._signed
-
-    if value_type is bool:
-        return "b"
-
-    if value_type is float:
-        return "d"
-
-    if value_type is int:
-        if byte_length <= 2:
-            return "n" if signed else "q"
-        if byte_length <= 4:
-            return "i" if signed else "u"
-        if byte_length <= 8:
-            return "x" if signed else "t"
-        raise ValueError(f"Unsupported byte length: {byte_length}")
-
-    if value_type is str:
-        return "s"
-
-    if value_type is bytes:
-        return "ay"
-
-    raise TypeError(f"Unsupported type: {value_type}")

src/revpi_middleware/dbus_middleware1/__init__.py

@@ -2,8 +2,7 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus middleware version 1 of revpi_middleware."""
-
 from .dbus_helper import REVPI_DBUS_BASE_PATH, REVPI_DBUS_NAME
 from .dbus_helper import extend_interface
 
-from .bus_provider_middleware1 import BusProviderMiddleware1
+from .bus_provider import BusProvider

src/revpi_middleware/dbus_middleware1/bus_provider.py

@@ -2,41 +2,38 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus bus provider for revpi_middleware."""
-
 from logging import getLogger
-from threading import Thread, Event
+from threading import Thread
 
 from gi.repository import GLib
-from pydbus import connect
+from pydbus import SessionBus, SystemBus
 
 from . import REVPI_DBUS_NAME
 from .process_image import InterfacePiControl
-from .system_config import InterfaceRevpiConfig, InterfaceSoftwareServices
+from .system_config import InterfaceRevpiConfig
 
 log = getLogger(__name__)
 
 
-class BusProviderMiddleware1(Thread):
+class BusProvider(Thread):
 
     def __init__(
         self,
-        dbus_address: str,
         picontrol_device="/dev/piControl0",
         config_rsc="/etc/revpi/config.rsc",
+        use_system_bus=True,
     ):
-        log.debug("enter BusProviderMiddleware1.__init__")
+        log.debug("enter BusProvider.__init__")
         super().__init__()
 
-        self._bus_address = dbus_address
+        self._bus = SystemBus() if use_system_bus else SessionBus()
         self._loop = GLib.MainLoop()
 
         self.picontrol_device = picontrol_device
-        self.published = Event()
         self.config_rsc = config_rsc
 
     def run(self):
-        log.debug("enter BusProviderMiddleware1.run")
-        bus = connect(self._bus_address)
+        log.debug("enter BusProvider.run")
 
         # The 2nd, 3rd, ... arguments can be objects or tuples of a path and an object
         #   Example(),
@@ -44,18 +41,15 @@ class BusProviderMiddleware1(Thread):
         #   ("Subdir2", Example()),
         #   ("Subdir2/Whatever", Example())
         lst_interfaces = [
-            InterfacePiControl(bus, self.picontrol_device, self.config_rsc),
-            InterfaceRevpiConfig(bus),
-            InterfaceSoftwareServices(bus),
+            InterfacePiControl(self.picontrol_device, self.config_rsc),
+            InterfaceRevpiConfig(),
         ]
 
         try:
-            bus.publish(
+            self._bus.publish(
                 REVPI_DBUS_NAME,
                 *lst_interfaces,
             )
-            self.published.set()
-            log.info(f"published {REVPI_DBUS_NAME} on {self._bus_address}")
         except Exception as e:
             log.error(f"can not publish dbus {REVPI_DBUS_NAME}: {e}")
 
@@ -64,25 +58,18 @@ class BusProviderMiddleware1(Thread):
         except Exception as e:
             log.error(f"can not run dbus mainloop: {e}")
 
-        bus.con.close()
-        log.info(f"closed {REVPI_DBUS_NAME} connection to {self._bus_address}")
-
         # Clean up all interfaces
         for interface in lst_interfaces:
             if type(interface) is tuple:
                 _, interface = interface
             interface.cleanup()
 
-        log.debug("leave BusProviderMiddleware1.run")
+        log.debug("leave BusProvider.run")
 
     def stop(self):
-        log.debug("enter BusProviderMiddleware1.stop")
+        log.debug("enter BusProvider.stop")
         self._loop.quit()
-        log.debug("leave BusProviderMiddleware1.stop")
-
-    @property
-    def name(self) -> str:
-        return REVPI_DBUS_NAME
+        log.debug("leave BusProvider.stop")
 
     @property
     def running(self):

src/revpi_middleware/dbus_middleware1/dbus_helper.py

@@ -5,8 +5,6 @@
 
 from logging import getLogger
 
-from pydbus.bus import Bus
-
 log = getLogger(__name__)
 
 REVPI_DBUS_NAME = "com.revolutionpi.middleware1"
@@ -15,9 +13,6 @@ REVPI_DBUS_BASE_PATH = "/com/revolutionpi/middleware1"
 
 class DbusInterface:
 
-    def __init__(self, bus: Bus):
-        self.bus = bus
-
     def cleanup(self):
         """
         Represents a method responsible for performing cleanup operations. This method is executed to properly

src/revpi_middleware/dbus_middleware1/process_image/__init__.py

@@ -2,5 +2,4 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus interfaces for piControl driver."""
-
 from .interface_picontrol import InterfacePiControl

src/revpi_middleware/dbus_middleware1/process_image/interface_picontrol.py

@@ -2,10 +2,8 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus interfaces for piControl."""
-
 from logging import getLogger
 
-from pydbus.bus import Bus
 from pydbus.generic import signal
 
 from .process_image_helper import PiControlIoctl, ResetDriverWatchdog
@@ -28,9 +26,7 @@ class InterfacePiControl(DbusInterface):
 
     NotifyDriverReset = signal()
 
-    def __init__(self, bus: Bus, picontrol_device: str, config_rsc: str):
-        super().__init__(bus)
-
+    def __init__(self, picontrol_device: str, config_rsc: str):
         self.picontrol_device = picontrol_device
         self.config_rsc = config_rsc
 

src/revpi_middleware/dbus_middleware1/process_image/process_image_helper.py

@@ -7,7 +7,6 @@ Helper for the process image.
 The ResetDriverWatchdog class is a copy of revpipyload project module "watchdogs"
 https://github.com/naruxde/revpipyload/blob/b51c2b617a57cc7d96fd67e1da9f090a0624eacb/src/revpipyload/watchdogs.py
 """
-
 import os
 from ctypes import c_int
 from fcntl import ioctl

src/revpi_middleware/dbus_middleware1/system_config/__init__.py

@@ -2,6 +2,4 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus interfaces for system configuration."""
-
 from .interface_config import InterfaceRevpiConfig
-from .interface_services import InterfaceSoftwareServices

src/revpi_middleware/dbus_middleware1/system_config/interface_config.py

@@ -2,20 +2,19 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus interfaces for hardware configuration."""
-
 from collections import namedtuple
 from logging import getLogger
 
-from pydbus.generic import signal
-
 from .revpi_config import (
     ConfigActions,
+    configure_avahi_daemon,
     configure_bluetooth,
     configure_con_can,
     configure_dphys_swapfile,
     configure_external_antenna,
     configure_gui,
     configure_wlan,
+    simple_systemd,
 )
 from ..dbus_helper import DbusInterface
 
@@ -43,32 +42,19 @@ class InterfaceRevpiConfig(DbusInterface):
                 <arg name="available" type="b" direction="out"/>
             </method>
             <property name="available_features" type="as" access="read"/>
-            <signal name="StatusChanged">
-                <arg name="feature" type="s"/>
-                <arg name="status" type="b"/>
-            </signal>
-            <signal name="AvailabilityChanged">
-                <arg name="feature" type="s"/>
-                <arg name="available" type="b"/>
-            </signal>
         </interface>
     </node>
     """
 
-    AvailabilityChanged = signal()
-    StatusChanged = signal()
-
     def Disable(self, feature: str) -> None:
         """Disable the feature."""
         feature_function = get_feature(feature)
         feature_function.function(ConfigActions.DISABLE, *feature_function.args)
-        self.StatusChanged(feature, False)
 
     def Enable(self, feature: str) -> None:
         """Enable the feature."""
         feature_function = get_feature(feature)
         feature_function.function(ConfigActions.ENABLE, *feature_function.args)
-        self.StatusChanged(feature, True)
 
     def GetStatus(self, feature: str) -> bool:
         """Get feature status."""
@@ -97,8 +83,18 @@ def get_feature(feature: str) -> FeatureFunction:
 AVAILABLE_FEATURES = {
     "gui": FeatureFunction(configure_gui, []),
     "revpi-con-can": FeatureFunction(configure_con_can, []),
-    "swapfile": FeatureFunction(configure_dphys_swapfile, []),
+    "dphys-swapfile": FeatureFunction(configure_dphys_swapfile, []),
+    "pimodbus-master": FeatureFunction(simple_systemd, ["pimodbus-master.service"]),
+    "pimodbus-slave": FeatureFunction(simple_systemd, ["pimodbus-slave.service"]),
+    "systemd-timesyncd": FeatureFunction(simple_systemd, ["systemd-timesyncd.service"]),
+    "ssh": FeatureFunction(simple_systemd, ["ssh.service"]),
+    "nodered": FeatureFunction(simple_systemd, ["nodered.service"]),
+    "noderedrevpinodes-server": FeatureFunction(
+        simple_systemd, ["noderedrevpinodes-server.service"]
+    ),
+    "revpipyload": FeatureFunction(simple_systemd, ["revpipyload.service"]),
     "bluetooth": FeatureFunction(configure_bluetooth, []),
     "wlan": FeatureFunction(configure_wlan, []),
+    "avahi": FeatureFunction(configure_avahi_daemon, []),
     "external-antenna": FeatureFunction(configure_external_antenna, []),
 }

src/revpi_middleware/dbus_middleware1/system_config/interface_services.py

@@ -1,207 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-"""D-Bus interfaces for software services."""
-
-from logging import getLogger
-from typing import List
-
-from pydbus.bus import Bus
-from pydbus.generic import signal
-
-from ..dbus_helper import DbusInterface
-from ..systemd_helper import simple_systemd, ServiceActions
-
-log = getLogger(__name__)
-
-
-class InterfaceSoftwareServices(DbusInterface):
-    """
-    <node>
-        <interface name="com.revolutionpi.middleware1.SoftwareServices">
-            <method name="Disable">
-                <arg name="feature" type="s" direction="in"/>
-            </method>
-            <method name="Enable">
-                <arg name="feature" type="s" direction="in"/>
-            </method>
-            <method name="GetStatus">
-                <arg name="feature" type="s" direction="in"/>
-                <arg name="status" type="b" direction="out"/>
-            </method>
-            <method name="GetAvailability">
-                <arg name="feature" type="s" direction="in"/>
-                <arg name="available" type="b" direction="out"/>
-            </method>
-            <property name="available_features" type="as" access="read"/>
-            <signal name="StatusChanged">
-                <arg name="feature" type="s"/>
-                <arg name="status" type="b"/>
-            </signal>
-            <signal name="AvailabilityChanged">
-                <arg name="feature" type="s"/>
-                <arg name="available" type="b"/>
-            </signal>
-        </interface>
-    </node>
-    """
-
-    AvailabilityChanged = signal()
-    StatusChanged = signal()
-
-    def __init__(self, bus: Bus):
-        super().__init__(bus)
-
-        self.mrk_available = {}
-        self.mrk_status = {}
-
-        self.services = {
-            "pimodbus-master": ["pimodbus-master.service"],
-            "pimodbus-slave": ["pimodbus-slave.service"],
-            "ntp": ["systemd-timesyncd.service"],
-            "ssh": ["ssh.service"],
-            "nodered": ["nodered.service"],
-            "noderedrevpinodes-server": ["noderedrevpinodes-server.service"],
-            "revpipyload": ["revpipyload.service"],
-            "avahi": ["avahi-daemon.service", "avahi-daemon.socket"],
-        }
-
-        # Create a systemd manager interface object
-        systemd = self.bus.get(
-            "org.freedesktop.systemd1",
-            "/org/freedesktop/systemd1",
-        )
-        systemd_manager = systemd["org.freedesktop.systemd1.Manager"]
-
-        # Load all unit paths and subscribe to properties changed signal
-        self.object_paths = {}
-        for feature in self.services:
-
-            # Get the status and availability of the feature
-            self.mrk_available[feature] = self.GetAvailability(feature)
-            self.mrk_status[feature] = self.GetStatus(feature)
-
-            # Subscribe to properties changed signal for each unit
-            for unit_name in self.services[feature]:
-                unit_path = systemd_manager.LoadUnit(unit_name)
-                self.object_paths[unit_path] = feature
-
-                self.bus.subscribe(
-                    iface="org.freedesktop.DBus.Properties",
-                    signal="PropertiesChanged",
-                    object=unit_path,
-                    signal_fired=self._callback_properties_changed,
-                )
-
-        # Subscribe to the reloading signal to update the availability of the feature
-        self.bus.subscribe(
-            iface="org.freedesktop.systemd1.Manager",
-            signal="Reloading",
-            object="/org/freedesktop/systemd1",
-            signal_fired=self._callback_reloading_signal,
-        )
-
-    def _callback_reloading_signal(self, sender, object_path, interface, signal, parameters):
-        """
-        Handles the signal emitted for reloading and checks for changes in availability
-        and status for a set of services. If changes are identified, corresponding
-        update methods are triggered to reflect the new states.
-
-        Args:
-            sender: The entity sending the signal.
-            object_path: Path to the object emitting the signal.
-            interface: Interface through which the signal is sent.
-            signal: The signal being received.
-            parameters: A list of parameters associated with the signal.
-
-        Raises:
-            None
-        """
-        if parameters[0]:
-            return
-
-        for feature in self.services:
-            availability = self.GetAvailability(feature)
-            if self.mrk_available[feature] != availability:
-                self.mrk_available[feature] = availability
-                self.AvailabilityChanged(feature, availability)
-
-            status = self.GetStatus(feature)
-            if self.mrk_status[feature] != status:
-                self.mrk_status[feature] = status
-                self.StatusChanged(feature, status)
-
-    def _callback_properties_changed(self, sender, object_path, interface, signal, parameters):
-        """
-        Handles the 'PropertiesChanged' signal callback by updating internal status tracking for given
-        features and invoking status change notifications if necessary.
-
-        Args:
-            sender (Any): Information about the signal sender.
-            object_path (str): The path of the object emitting the signal.
-            interface (str): The interface where the signal was emitted.
-            signal (str): The name of the emitted signal.
-            parameters (tuple): Signal parameters containing interface name, changed properties, and
-                invalidated properties.
-
-        Raises:
-            TypeError: If the 'parameters' argument does not unpack to three expected values.
-        """
-        interface, changed_properties, invalidated_properties = parameters
-        if "ActiveState" not in changed_properties:
-            return
-
-        feature = self.object_paths[object_path]
-        status = self.GetStatus(feature)
-        if self.mrk_status[feature] != status:
-            self.mrk_status[feature] = status
-            self.StatusChanged(feature, status)
-
-    def _get_unit_names(self, feature: str) -> List[str]:
-        if feature not in self.services:
-            raise ValueError(f"feature {feature} does not exist")
-        return self.services[feature]
-
-    def Disable(self, feature: str) -> None:
-        """Disable the feature."""
-        action = ServiceActions.DISABLE
-        unit_names = self._get_unit_names(feature)
-
-        for unit_name in unit_names:
-            simple_systemd(action, unit_name)
-
-    def Enable(self, feature: str) -> None:
-        """Enable the feature."""
-        action = ServiceActions.ENABLE
-        unit_names = self._get_unit_names(feature)
-
-        for unit_name in unit_names:
-            simple_systemd(action, unit_name)
-
-    def GetStatus(self, feature: str) -> bool:
-        """Get feature status."""
-        unit_names = self._get_unit_names(feature)
-        rc_status = True
-
-        for unit_name in unit_names:
-            if not simple_systemd(ServiceActions.STATUS, unit_name):
-                rc_status = False
-                break
-
-        return rc_status
-
-    def GetAvailability(self, feature: str) -> bool:
-        """Get feature availability on the RevPi."""
-        unit_names = self._get_unit_names(feature)
-        rc_available = True
-
-        for unit_name in unit_names:
-            if not simple_systemd(ServiceActions.AVAILABLE, unit_name):
-                rc_available = False
-                break
-
-        return rc_available
-
-    @property
-    def available_features(self) -> list[str]:
-        return list(self.services.keys())

src/revpi_middleware/dbus_middleware1/system_config/revpi_config.py

@@ -10,12 +10,12 @@ from glob import glob
 from logging import getLogger
 from os import X_OK, access
 from os.path import exists, join
+from threading import Thread
 from typing import List, Optional
 
 from pydbus import SystemBus
 
 from ..dbus_helper import grep
-from ..systemd_helper import simple_systemd, ServiceActions
 
 log = getLogger(__name__)
 
@@ -42,7 +42,6 @@ class ComputeModuleTypes(IntEnum):
         CM4S (int): Represents a Compute Module 4S.
         CM5 (int): Represents a Compute Module 5.
     """
-
     UNKNOWN = 0
     CM1 = 6
     CM3 = 10
@@ -59,7 +58,6 @@ class ConfigActions(Enum):
     actions. It can be used to ensure consistency when working with or defining
     such actions in a system.
     """
-
     ENABLE = "enable"
     DISABLE = "disable"
     STATUS = "status"
@@ -234,7 +232,6 @@ class ConfigTxt:
         _config_txt_lines (list[str]): Contains all lines of the configuration
             file as a list of strings, where each string represents a line.
     """
-
     re_name_value = re.compile(r"^\s*(?!#)(?P<name>[^=\s].+?)\s*=\s*(?P<value>\S+)\s*$")
 
     def __init__(self):
@@ -435,6 +432,18 @@ class ConfigTxt:
         return self._config_txt_path
 
 
+def configure_avahi_daemon(action: ConfigActions):
+    return_value = simple_systemd(action, "avahi-daemon.service")
+
+    # Post actions for avahi-daemon
+    if action in (ConfigActions.ENABLE, ConfigActions.DISABLE):
+        # Apply the enable/disable action to the avahi socket AFTER the service
+        # unit, because a connected socket could interrupt stop
+        simple_systemd(action, "avahi-daemon.socket")
+
+    return return_value
+
+
 def configure_bluetooth(action: ConfigActions):
     hci_device = join(LINUX_BT_CLASS_PATH, "hci0")
     bt_rfkill_index = get_rfkill_index(hci_device)
@@ -500,17 +509,7 @@ def configure_con_can(action: ConfigActions):
 
 
 def configure_dphys_swapfile(action: ConfigActions):
-    # Translate config action to systemd action
-    if action is ConfigActions.ENABLE:
-        systemd_action = ServiceActions.ENABLE
-    elif action is ConfigActions.DISABLE:
-        systemd_action = ServiceActions.DISABLE
-    elif action is ConfigActions.STATUS:
-        systemd_action = ServiceActions.STATUS
-    else:
-        systemd_action = ServiceActions.AVAILABLE
-
-    return_value = simple_systemd(systemd_action, "dphys-swapfile.service")
+    return_value = simple_systemd(action, "dphys-swapfile.service")
 
     # Post actions for dphys-swapfile
     if action is ConfigActions.DISABLE:
@@ -635,6 +634,98 @@ def get_rfkill_index(device_class_path: str) -> Optional[int]:
     return None
 
 
+def simple_systemd(action: ConfigActions, unit: str):
+    """
+    Performs specified actions on systemd units.
+
+    This function allows interaction with systemd units for various operations
+    such as enabling, disabling, checking the status, and verifying availability.
+    It communicates with the systemd manager via the SystemBus and handles units
+    based on the action specified.
+
+    Parameters:
+        action (ConfigActions): Specifies the action to be performed on the
+                                systemd unit. Supported actions include ENABLE,
+                                DISABLE, STATUS, and AVAILABLE.
+        unit (str): The name of the systemd unit on which the action is to be
+                    performed.
+
+    Returns:
+        bool: For STATUS and AVAILABLE actions, returns True if the corresponding
+              criteria are met (e.g., enabled and active for STATUS, or not found
+              for AVAILABLE). Otherwise, returns False.
+
+    Raises:
+        ValueError: If the specified action is not supported.
+    """
+    bus = SystemBus()
+    systemd = bus.get(
+        "org.freedesktop.systemd1",
+        "/org/freedesktop/systemd1",
+    )
+    systemd_manager = systemd["org.freedesktop.systemd1.Manager"]
+
+    if action is ConfigActions.ENABLE:
+
+        def thread_unit_config():
+            """Change configuration asynchronously."""
+            # Dbus call: UnmaskUnitFiles(in as files, in b runtime, out a(sss) changes
+            lst_change_unmask = systemd_manager.UnmaskUnitFiles([unit], False)
+
+            # Dbus call: EnableUnitFiles(in as files, in b runtime, in b force,
+            #                            out b carries_install_info, out a(sss) changes
+            lst_change_enable = systemd_manager.EnableUnitFiles([unit], False, False)
+            if lst_change_unmask or lst_change_enable:
+                # Reload systemd after modified unit property
+                systemd_manager.Reload()
+
+        Thread(target=thread_unit_config, daemon=True).start()
+
+        # Dbus call: StartUnit(in s name, in s mode, out o job
+        systemd_manager.StartUnit(unit, "replace")
+
+    elif action is ConfigActions.DISABLE:
+
+        def thread_unit_config():
+            """Change configuration asynchronously."""
+            # Dbus call: DisableUnitFiles (in as files, in b runtime, out a(sss) changes)
+            change = systemd_manager.DisableUnitFiles([unit], False)
+            if change:
+                # Reload systemd after modified unit property
+                systemd_manager.Reload()
+
+        Thread(target=thread_unit_config, daemon=True).start()
+
+        # Dbus call: StopUnit(in s name,in s mode, out o job
+        systemd_manager.StopUnit(unit, "replace")
+
+
+    elif action is ConfigActions.STATUS:
+        try:
+            unit_path = systemd_manager.LoadUnit(unit)
+            properties = bus.get("org.freedesktop.systemd1", unit_path)
+        except Exception:
+            log.warning(f"could not get systemd unit {unit}")
+            return False
+
+        return properties.UnitFileState == "enabled" and properties.ActiveState == "active"
+
+    elif action is ConfigActions.AVAILABLE:
+        try:
+            unit_path = systemd_manager.LoadUnit(unit)
+            properties = bus.get("org.freedesktop.systemd1", unit_path)
+        except Exception:
+            log.warning(f"could not get systemd unit {unit}")
+            return False
+
+        return properties.LoadState != "not-found"
+
+    else:
+        raise ValueError(f"action {action} not supported")
+
+    return None
+
+
 if __name__ == "__main__":
     rc = RevPiConfig()
     print("Model:", rc.model)

src/revpi_middleware/dbus_middleware1/systemd_helper.py

@@ -1,121 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
-# SPDX-License-Identifier: GPL-2.0-or-later
-from enum import Enum
-from logging import getLogger
-from threading import Thread
-from typing import Optional
-
-from pydbus import SystemBus
-
-log = getLogger(__name__)
-
-
-class ServiceActions(Enum):
-    """
-    Enumeration class for defining configuration actions.
-
-    This enumeration provides predefined constants for common configuration
-    actions. It can be used to ensure consistency when working with or defining
-    such actions in a system.
-    """
-
-    ENABLE = "enable"
-    DISABLE = "disable"
-    STATUS = "status"
-    AVAILABLE = "available"
-
-
-def simple_systemd(action: ServiceActions, unit: str, unmask: bool = False) -> Optional[bool]:
-    """
-    Perform systemd service actions such as enable, disable, check status, or availability.
-
-    This function interacts with the systemd D-Bus API to manage and query the
-    state of services on a system. The supported actions include enabling a systemd
-    unit, disabling it, starting/stopping a unit, and checking its status or
-    availability. The function supports asynchronous configuration changes through
-    threads where applicable.
-
-    Parameters:
-        action (ServiceActions): The action to perform on the systemd service.
-            Supported actions are ENABLE, DISABLE, STATUS, and AVAILABLE.
-        unit (str): The name of the systemd unit to operate on (e.g., "example.service").
-        unmask (bool): When enabling a unit, if True, any masked unit file will
-            first be unmasked before proceeding with the operation. Defaults to False.
-
-    Returns:
-        Optional[bool]: The return value depends on the action. For STATUS or
-            AVAILABLE actions, it returns True if the unit satisfies the condition
-            (e.g., enabled and active, or available and loaded), False otherwise.
-            For other actions, it returns None.
-    """
-    bus = SystemBus()
-    systemd = bus.get(
-        "org.freedesktop.systemd1",
-        "/org/freedesktop/systemd1",
-    )
-    systemd_manager = systemd["org.freedesktop.systemd1.Manager"]
-
-    if action is ServiceActions.ENABLE:
-
-        def thread_unit_config():
-            """Change configuration asynchronously."""
-            lst_change_unmask = []
-            if unmask:
-                # Dbus call: UnmaskUnitFiles(in as files, in b runtime, out a(sss) changes
-                lst_change_unmask = systemd_manager.UnmaskUnitFiles([unit], False)
-
-            # Dbus call: EnableUnitFiles(in as files, in b runtime, in b force,
-            #                            out b carries_install_info, out a(sss) changes
-            lst_change_enable = systemd_manager.EnableUnitFiles([unit], False, False)
-            if lst_change_unmask or lst_change_enable:
-                # Reload systemd after modified unit property
-                systemd_manager.Reload()
-
-        Thread(target=thread_unit_config, daemon=True).start()
-
-        # Dbus call: StartUnit(in s name, in s mode, out o job
-        systemd_manager.StartUnit(unit, "replace")
-
-    elif action is ServiceActions.DISABLE:
-
-        def thread_unit_config():
-            """Change configuration asynchronously."""
-            # Dbus call: DisableUnitFiles (in as files, in b runtime, out a(sss) changes)
-            change = systemd_manager.DisableUnitFiles([unit], False)
-            if change:
-                # Reload systemd after modified unit property
-                systemd_manager.Reload()
-
-        Thread(target=thread_unit_config, daemon=True).start()
-
-        # Dbus call: StopUnit(in s name,in s mode, out o job
-        systemd_manager.StopUnit(unit, "replace")
-
-    elif action is ServiceActions.STATUS:
-        try:
-            unit_path = systemd_manager.LoadUnit(unit)
-            properties = bus.get("org.freedesktop.systemd1", unit_path)
-        except Exception:
-            log.warning(f"could not get systemd unit {unit}")
-            return False
-
-        return properties.UnitFileState == "enabled" and properties.ActiveState in (
-            "active",
-            "activating",
-        )
-
-    elif action is ServiceActions.AVAILABLE:
-        try:
-            unit_path = systemd_manager.LoadUnit(unit)
-            properties = bus.get("org.freedesktop.systemd1", unit_path)
-        except Exception:
-            log.warning(f"could not get systemd unit {unit}")
-            return False
-
-        return properties.LoadState != "not-found"
-
-    else:
-        raise ValueError(f"action {action} not supported")
-
-    return None

src/revpi_middleware/ios1/__init__.py

@@ -2,7 +2,4 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """D-Bus ios version 1 of revpi_middleware."""
-
 from .ios1_helper import REVPI_DBUS_BASE_PATH, REVPI_DBUS_NAME
-
-from .bus_provider_ios1 import BusProviderIos1

src/revpi_middleware/ios1/bus_provider_io.py

@@ -0,0 +1,100 @@
+# -*- coding: utf-8 -*-
+# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
+# SPDX-License-Identifier: GPL-2.0-or-later
+"""D-Bus bus provider for revpi_middleware."""
+from logging import getLogger
+from threading import Thread
+
+import revpimodio2
+from gi.repository import GLib
+from pydbus import SessionBus, SystemBus
+from revpimodio2 import Cycletools
+
+from . import REVPI_DBUS_NAME
+from .interface_ios import (
+    InterfaceIoManager,
+    InterfaceInpBool,
+    InterfaceOutBool,
+    InterfaceInpInt,
+    InterfaceOutInt,
+)
+
+log = getLogger(__name__)
+
+
+class BusProviderIo(Thread):
+
+    def __init__(
+        self,
+        picontrol_device="/dev/piControl0",
+        config_rsc="/etc/revpi/config.rsc",
+        use_system_bus=True,
+    ):
+        log.debug("enter BusProviderIo.__init__")
+        super().__init__()
+
+        self._bus = SystemBus() if use_system_bus else SessionBus()
+        self._dc_io_interfaces = {}
+        self._loop = GLib.MainLoop()
+        self._modio = revpimodio2.RevPiModIO(
+            procimg=picontrol_device,
+            configrsc=config_rsc,
+            shared_procimg=True,
+        )
+
+        self.picontrol_device = picontrol_device
+        self.config_rsc = config_rsc
+
+    def run(self):
+        log.debug("enter BusProviderIo.run")
+
+        self._dc_io_interfaces.clear()
+
+        for io in self._modio.io:
+            interface = None
+            value_type = type(io.value)
+            if value_type is bool:
+                interface = (
+                    InterfaceInpBool(self._bus, io)
+                    if io.type == revpimodio2.INP
+                    else InterfaceOutBool(self._bus, io)
+                )
+            elif value_type is int:
+                interface = (
+                    InterfaceInpInt(self._bus, io)
+                    if io.type == revpimodio2.INP
+                    else InterfaceOutInt(self._bus, io)
+                )
+
+            if interface is not None:
+                self._dc_io_interfaces[io.name] = interface
+
+        lst_interfaces = [
+            (f"io/{io_name}", self._dc_io_interfaces[io_name]) for io_name in self._dc_io_interfaces
+        ]
+        try:
+            self._bus.publish(
+                REVPI_DBUS_NAME,
+                InterfaceIoManager(self._modio, self._dc_io_interfaces),
+                *lst_interfaces,
+            )
+        except Exception as e:
+            log.error(f"can not publish dbus {REVPI_DBUS_NAME}: {e}")
+
+        try:
+            self._loop.run()
+        except Exception as e:
+            log.error(f"can not run dbus mainloop: {e}")
+
+        self._modio.cleanup()
+
+        log.debug("leave BusProviderIo.run")
+
+    def stop(self):
+        log.debug("enter BusProviderIo.stop")
+        self._loop.quit()
+        log.debug("leave BusProviderIo.stop")
+
+    @property
+    def running(self):
+        return self._loop.is_running()

src/revpi_middleware/ios1/interface_ios.py

@@ -0,0 +1,159 @@
+# -*- coding: utf-8 -*-
+# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
+# SPDX-License-Identifier: GPL-2.0-or-later
+"""D-Bus interfaces for IOs."""
+from gi.overrides.GLib import Variant
+from pydbus.generic import signal
+from revpimodio2 import RevPiModIO, Cycletools
+
+from .ios1_helper import REVPI_DBUS_BASE_PATH, DbusInterfaceIo
+
+
+class InterfaceIoManager:
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.IoManager">
+            <method name="GetAllInputs">
+                <arg type="as" direction="out"/>
+            </method>
+            <method name="GetAllOutputs">
+                <arg type="as" direction="out"/>
+            </method>
+            <method name="Get">
+                <arg name="io_name" type="s" direction="in"/>
+                <arg name="object-path" type="o" direction="out"/>
+            </method>
+            <method name="ActivateIoEvents">
+            </method>
+            <method name="DeactivateIoEvents">
+            </method>
+            <signal name="IoChanged">
+                <arg name="name" type="s" direction="out"/>
+                <arg name="value" type="v" direction="out"/>
+            </signal>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.IoManager"
+    IoChanged = signal()
+
+    def __init__(self, modio: RevPiModIO, io_interfaces: dict[str, DbusInterfaceIo]):
+        self._dc_io_interfaces = io_interfaces
+        self.modio = modio
+
+        self.lst_inp = []
+        for dev in self.modio.device:
+            for io in dev.get_inputs():
+                self.lst_inp.append(self._get_io_path(io.name))
+        self.lst_out = []
+        for dev in self.modio.device:
+            for io in dev.get_outputs():
+                self.lst_out.append(self._get_io_path(io.name))
+
+    def _modio_cycle(self, ct: Cycletools) -> None:
+        for io_name in self._dc_io_interfaces:
+            interface = self._dc_io_interfaces[io_name]
+            if ct.changed(interface.io):
+                interface.emit_io_change()
+                self.IoChanged(interface.io.name, Variant("b", interface.io.value))
+
+    def _get_io_path(self, io_name: str) -> str:
+        return f"{REVPI_DBUS_BASE_PATH}/io/{io_name}"
+
+    def GetAllInputs(self) -> list[str]:
+        return self.lst_inp
+
+    def GetAllOutputs(self) -> list[str]:
+        return self.lst_out
+
+    def Get(self, io_name) -> str:
+        if io_name in self.modio.io:
+            return self._get_io_path(io_name)
+
+        raise KeyError(f"No IO with name '{io_name}' found.")
+
+    def ActivateIoEvents(self) -> None:
+        if not self.modio._looprunning:
+            self.modio.autorefresh_all()
+            self.modio.cycleloop(self._modio_cycle, cycletime=50, blocking=False)
+
+    def DeactivateIoEvents(self) -> None:
+        self.modio.exit(False)
+
+
+class InterfaceInpBool(DbusInterfaceIo):
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.InpBool">
+            <property name="bmk" type="s" access="read"/>
+            <property name="name" type="s" access="read"/>
+            <property name="value" type="b" access="read"/>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.InpBool"
+
+    @property
+    def bmk(self) -> str:
+        return self.io.bmk
+
+    @property
+    def name(self) -> str:
+        return self.io.name
+
+    @property
+    def value(self) -> bool:
+        return self.io.value
+
+
+class InterfaceOutBool(InterfaceInpBool):
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.OutBool">
+            <property name="bmk" type="s" access="read"/>
+            <property name="name" type="s" access="read"/>
+            <property name="value" type="b" access="readwrite"/>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.OutBool"
+
+    @property
+    def value(self) -> bool:
+        return super().value
+
+    @value.setter
+    def value(self, value: bool):
+        self.io.value = value
+        self.io._parentdevice._modio.writeprocimg()
+
+
+class InterfaceInpInt(DbusInterfaceIo):
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.InpInt">
+            <property name="bmk" type="s" access="read"/>
+            <property name="name" type="s" access="read"/>
+            <property name="value" type="i" access="read"/>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.InpInt"
+
+
+class InterfaceOutInt(InterfaceInpInt):
+    """
+    <node>
+        <interface name="com.revolutionpi.ios1.OutInt">
+            <property name="bmk" type="s" access="read"/>
+            <property name="name" type="s" access="read"/>
+            <property name="value" type="i" access="readwrite"/>
+        </interface>
+    </node>
+    """
+
+    interface_name = "com.revolutionpi.ios1.OutInt"

src/revpi_middleware/ios1/ios1_helper.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+# SPDX-FileCopyrightText: 2025 KUNBUS GmbH
+# SPDX-License-Identifier: GPL-2.0-or-later
+"""Helper for io read and write."""
+from logging import getLogger
+
+from gi.overrides.GLib import Variant
+from pydbus import SessionBus, SystemBus
+from pydbus.generic import signal
+from revpimodio2.io import IOBase
+
+log = getLogger(__name__)
+
+REVPI_DBUS_NAME = "com.revolutionpi.ios1"
+REVPI_DBUS_BASE_PATH = "/com/revolutionpi/ios1"
+
+
+class DbusInterfaceIo:
+    interface_name = ""
+    PropertiesChanged = signal()
+
+    def __init__(self, dbus: SystemBus or SessionBus, io: IOBase):
+        self.dbus = dbus
+        self.io = io
+        self.variant_type = "b" if type(self.io.value) is bool else "i"
+
+    def emit_io_change(self):
+        if not self.interface_name:
+            return
+
+        if self.interface_name:
+            print(type(self.io.value))
+            self.PropertiesChanged(
+                self.interface_name,
+                {"value": int(self.io.value)},
+                [],
+            )

src/revpi_middleware/main_application.py

@@ -2,10 +2,9 @@
 # SPDX-FileCopyrightText: 2025 KUNBUS GmbH
 # SPDX-License-Identifier: GPL-2.0-or-later
 """Main application of revpi-middleware daemon."""
-
 from logging import getLogger
 
-from .daemon import MiddlewareDaemon, BusProvider
+from .daemon import MiddlewareDaemon
 from . import proginit as pi
 
 log = getLogger(__name__)
@@ -27,19 +26,6 @@ pi.parser.add_argument(
     default="/etc/{0}/{0}.conf".format(pi.programname),
     help="application configuration file",
 )
-pi.parser.add_argument(
-    "--procimg",
-    dest="procimg",
-    default="/dev/piControl0",
-    help="Path to process image",
-)
-pi.parser.add_argument(
-    "bus_provider",
-    default="middleware",
-    nargs="?",
-    choices=["middleware", "ios"],
-    help="bus provider to use",
-)
 
 
 def main() -> int:
@@ -48,7 +34,7 @@ def main() -> int:
     # Parse command line arguments
     pi.init_app()
 
-    root = MiddlewareDaemon(BusProvider(pi.pargs.bus_provider))
+    root = MiddlewareDaemon()
 
     # Set signals
     signal.signal(signal.SIGHUP, lambda n, f: root.reload_config())

src/revpi_middleware/proginit.py

@@ -2,7 +2,6 @@
 # SPDX-FileCopyrightText: 2018-2023 Sven Sager
 # SPDX-License-Identifier: LGPL-2.0-or-later
 """Global program initialization."""
-
 __author__ = "Sven Sager"
 __copyright__ = "Copyright (C) 2018-2023 Sven Sager"
 __license__ = "LGPL-2.0-or-later"

tests/dbus_middleware1/bus_provider.py

@@ -3,8 +3,6 @@
 # SPDX-License-Identifier: GPL-2.0-or-later
 from time import sleep
 
-from gi.repository.Gio import dbus_address_get_for_bus_sync, BusType
-
 from tests.dbus_middleware1.fake_devices import PiControlDeviceMockup
 
 
@@ -14,13 +12,12 @@ class TestBusProvider(PiControlDeviceMockup):
         super().setUp()
 
         # Do not import things on top of the module. Some classes or functions need to be mocked up first.
-        from revpi_middleware.dbus_middleware1 import BusProviderMiddleware1
+        from revpi_middleware.dbus_middleware1 import BusProvider
 
         # Prepare the bus provider and start it
-        bus_address = dbus_address_get_for_bus_sync(BusType.SESSION)
-        self.bp = BusProviderMiddleware1(
-            bus_address,
-            picontrol_device=self.picontrol.name,
+        self.bp = BusProvider(
+            self.picontrol.name,
+            use_system_bus=False,
         )
         self.bp.start()