[Tizen] [lighting-app] Add GPIO control and dbus UI

config/tizen/chip-gn/platform/BUILD.gn

@@ -20,6 +20,10 @@ import("${chip_root}/config/tizen/chip-gn/args.gni")
 import("${build_root}/config/linux/pkg_config.gni")
 import("${chip_root}/src/platform/device.gni")
 
+pkg_config("capi-system-peripheral-io") {
+  packages = [ "capi-system-peripheral-io" ]
+}
+
 pkg_config("dlog") {
   packages = [ "dlog" ]
 }
@@ -69,6 +73,7 @@ source_set("tizen") {
     ":glib",
     ":capi-appfw-preference",
     ":capi-system-info",
+    ":capi-system-peripheral-io",
   ]
 
   if (chip_mdns == "platform") {

examples/lighting-app/tizen/BUILD.gn

@@ -15,15 +15,31 @@
 import("//build_overrides/chip.gni")
 import("//build_overrides/tizen.gni")
 
+import("${chip_root}/build/chip/linux/gdbus_library.gni")
 import("${chip_root}/build/chip/tools.gni")
 import("${chip_root}/src/app/common_flags.gni")
 import("${tizen_sdk_build_root}/tizen_sdk.gni")
 
 assert(chip_build_tools)
 
+declare_args() {
+  # Enable D-Bus based UI functionality for example app
+  chip_examples_enable_ui = false
+}
+
+gdbus_library("chip-lighting-app-manager") {
+  sources = [ "xml/DBusLightApp.xml" ]
+  interface_prefix = "org.tizen.matter.example.lighting"
+  c_namespace = "LightApp"
+  c_generate_object_manager = true
+  dbus_out_dir = "dbus"
+}
+
 executable("chip-lighting-app") {
   sources = [
     "include/CHIPProjectAppConfig.h",
+    "include/LedManager.h",
+    "src/LedManager.cpp",
     "src/main.cpp",
   ]
 
@@ -34,6 +50,15 @@ executable("chip-lighting-app") {
     "${chip_root}/src/lib",
   ]
 
+  if (chip_examples_enable_ui) {
+    sources += [ "src/DBusInterface.cpp" ]
+    deps += [ ":chip-lighting-app-manager" ]
+    defines = [ "ENABLE_DBUS_UI=1" ]
+  }
+  else {
+    defines = [ "ENABLE_DBUS_UI=0" ]
+  }
+
   include_dirs = [ "include" ]
 
   output_dir = root_out_dir

examples/lighting-app/tizen/include/LedManager.h

@@ -0,0 +1,45 @@
+/*
+ *
+ *    Copyright (c) 2023 Project CHIP Authors
+ *    All rights reserved.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#pragma once
+
+#include <lib/core/CHIPError.h>
+#include <lib/core/DataModelTypes.h>
+
+#include <peripheral_io.h>
+
+namespace example {
+class LedManager
+{
+public:
+    explicit LedManager(chip::EndpointId endpointId);
+    void SetOnOff(bool on);
+    CHIP_ERROR Init();
+
+private:
+    void InitOnOff();
+
+    // Numbers of GPIO used to control LED in order: RED, GREEN, BLUE
+    static constexpr int number_of_pins       = 3;
+    static constexpr int pins[number_of_pins] = { 20, 19, 18 };
+    peripheral_gpio_h gpio[number_of_pins]    = {};
+
+    const chip::EndpointId mEndpointId;
+};
+
+} // namespace example

examples/lighting-app/tizen/src/DBusInterface.cpp

@@ -0,0 +1,230 @@
+/*
+ *
+ *    Copyright (c) 2023 Project CHIP Authors
+ *    All rights reserved.
+ *
+ *    Licensed under the Apache License, Version 2.0 (the "License");
+ *    you may not use this file except in compliance with the License.
+ *    You may obtain a copy of the License at
+ *
+ *        http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing, software
+ *    distributed under the License is distributed on an "AS IS" BASIS,
+ *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *    See the License for the specific language governing permissions and
+ *    limitations under the License.
+ */
+
+#include "DBusInterface.h"
+
+#include <app-common/zap-generated/attributes/Accessors.h>
+#include <app-common/zap-generated/cluster-enums.h>
+#include <app-common/zap-generated/ids/Attributes.h>
+#include <app-common/zap-generated/ids/Clusters.h>
+#include <app/ConcreteAttributePath.h>
+#include <app/clusters/color-control-server/color-control-server.h>
+#include <app/clusters/level-control/level-control.h>
+#include <app/clusters/on-off-server/on-off-server.h>
+#include <lib/support/logging/CHIPLogging.h>
+#include <platform/CHIPDeviceLayer.h>
+
+#include "dbus/DBusLightApp.h"
+
+using namespace chip;
+using namespace chip::app;
+
+namespace example {
+
+// Dummy class to satisfy the CommandHandler::Callback interface.
+class CommandHandlerCallback : public CommandHandler::Callback
+{
+public:
+    using Status = Protocols::InteractionModel::Status;
+    void OnDone(CommandHandler & apCommandObj) {}
+    void DispatchCommand(CommandHandler & apCommandObj, const ConcreteCommandPath & aCommandPath, TLV::TLVReader & apPayload) {}
+    Status CommandExists(const ConcreteCommandPath & aCommandPath) { return Status::Success; }
+};
+
+DBusInterface::DBusInterface(chip::EndpointId endpointId) : mEndpointId(endpointId)
+{
+    mManager           = g_dbus_object_manager_server_new("/");
+    mIfaceIdentify     = light_app_identify_skeleton_new();
+    mIfaceOnOff        = light_app_on_off_skeleton_new();
+    mIfaceLevelControl = light_app_level_control_skeleton_new();
+    mIfaceColorControl = light_app_color_control_skeleton_new();
+}
+
+DBusInterface::~DBusInterface()
+{
+    g_object_unref(mIfaceIdentify);
+    g_object_unref(mIfaceOnOff);
+    g_object_unref(mIfaceLevelControl);
+    g_object_unref(mIfaceColorControl);
+    g_object_unref(mManager);
+}
+
+CHIP_ERROR DBusInterface::Init()
+{
+    // During the initialization we are going to connect glib signals, so we need to be
+    // on the GLib Matter context. Otherwise, signals will be emitted on the glib default
+    // main context.
+    return chip::DeviceLayer::PlatformMgrImpl().GLibMatterContextInvokeSync(InitOnGLibMatterContext, this);
+}
+
+void DBusInterface::Identify(uint16_t time)
+{
+    light_app_identify_emit_identify(mIfaceIdentify, time);
+}
+
+void DBusInterface::SetOnOff(bool on)
+{
+    InternalSetGuard guard(this);
+    if (light_app_on_off_get_on_off(mIfaceOnOff) != on)
+        light_app_on_off_set_on_off(mIfaceOnOff, on);
+}
+
+void DBusInterface::SetCurrentLevel(uint8_t value)
+{
+    InternalSetGuard guard(this);
+    if (light_app_level_control_get_current_level(mIfaceLevelControl) != value)
+        light_app_level_control_set_current_level(mIfaceLevelControl, value);
+}
+
+void DBusInterface::SetColorMode(chip::app::Clusters::ColorControl::ColorMode colorMode)
+{
+    InternalSetGuard guard(this);
+    if (light_app_color_control_get_color_mode(mIfaceColorControl) != colorMode)
+        light_app_color_control_set_color_mode(mIfaceColorControl, colorMode);
+}
+
+void DBusInterface::SetColorTemperature(uint16_t value)
+{
+    InternalSetGuard guard(this);
+    if (light_app_color_control_get_color_temperature_mireds(mIfaceColorControl) != value)
+        light_app_color_control_set_color_temperature_mireds(mIfaceColorControl, value);
+}
+
+CHIP_ERROR DBusInterface::InitOnGLibMatterContext(DBusInterface * self)
+{
+    g_autoptr(GDBusConnection) bus = nullptr;
+    g_autoptr(GError) error        = nullptr;
+
+    if ((bus = g_bus_get_sync(G_BUS_TYPE_SYSTEM, nullptr, &error)) == nullptr)
+    {
+        ChipLogError(NotSpecified, "Couldn't get D-Bus bus: %s", error->message);
+        return CHIP_ERROR_NOT_CONNECTED;
+    }
+
+    LightAppObjectSkeleton * object = light_app_object_skeleton_new("/app");
+    g_dbus_object_manager_server_export(self->mManager, G_DBUS_OBJECT_SKELETON(object));
+
+    light_app_object_skeleton_set_identify(object, self->mIfaceIdentify);
+    light_app_object_skeleton_set_on_off(object, self->mIfaceOnOff);
+    light_app_object_skeleton_set_level_control(object, self->mIfaceLevelControl);
+    light_app_object_skeleton_set_color_control(object, self->mIfaceColorControl);
+
+    self->InitOnOff();
+    self->InitColor();
+
+    g_dbus_object_manager_server_set_connection(self->mManager, bus);
+    g_object_unref(object);
+
+    g_signal_connect(self->mIfaceOnOff, "notify::on-off", G_CALLBACK(OnOnOffChanged), self);
+    g_signal_connect(self->mIfaceLevelControl, "notify::current-level", G_CALLBACK(OnCurrentLevelChanged), self);
+    g_signal_connect(self->mIfaceColorControl, "notify::color-temperature-mireds", G_CALLBACK(OnColorTemperatureChanged), self);
+
+    g_bus_own_name_on_connection(bus, "org.tizen.matter.example.lighting", G_BUS_NAME_OWNER_FLAGS_NONE,
+                                 reinterpret_cast<GBusAcquiredCallback>(OnBusAcquired),
+                                 reinterpret_cast<GBusNameLostCallback>(OnBusLost), self, nullptr);
+
+    return CHIP_NO_ERROR;
+}
+
+void DBusInterface::OnBusAcquired(GDBusConnection *, const char *, DBusInterface * self)
+{
+    self->mNameAcquired = true;
+}
+
+void DBusInterface::OnBusLost(GDBusConnection *, const char * name, DBusInterface * self)
+{
+    VerifyOrReturn(self->mNameAcquired, /* connection was lost after name was acquired, so it's not an error */);
+    ChipLogError(NotSpecified, "Couldn't acquire D-Bus name. Please check D-Bus configuration. Requested name: %s", name);
+}
+
+gboolean DBusInterface::OnOnOffChanged(LightAppOnOff * onOff, GDBusMethodInvocation * invocation, DBusInterface * self)
+{
+    // Do not handle on-change event if it was triggered by internal set
+    VerifyOrReturnValue(!self->mInternalSet, G_DBUS_METHOD_INVOCATION_HANDLED);
+
+    chip::DeviceLayer::StackLock lock;
+    OnOffServer::Instance().setOnOffValue(self->mEndpointId,
+                                          light_app_on_off_get_on_off(onOff) ? Clusters::OnOff::Commands::On::Id
+                                                                             : Clusters::OnOff::Commands::Off::Id,
+                                          false /* initiatedByLevelChange */);
+    return G_DBUS_METHOD_INVOCATION_HANDLED;
+}
+
+gboolean DBusInterface::OnCurrentLevelChanged(LightAppLevelControl * levelControl, GDBusMethodInvocation * invocation,
+                                              DBusInterface * self)
+{
+    // Do not handle on-change event if it was triggered by internal set
+    VerifyOrReturnValue(!self->mInternalSet, G_DBUS_METHOD_INVOCATION_HANDLED);
+
+    Clusters::LevelControl::Commands::MoveToLevel::DecodableType data;
+    data.level = light_app_level_control_get_current_level(levelControl);
+    data.optionsMask.Set(Clusters::LevelControl::LevelControlOptions::kExecuteIfOff);
+    data.optionsOverride.Set(Clusters::LevelControl::LevelControlOptions::kExecuteIfOff);
+
+    chip::DeviceLayer::StackLock lock;
+    LevelControlServer::MoveToLevel(self->mEndpointId, data);
+
+    return G_DBUS_METHOD_INVOCATION_HANDLED;
+}
+
+gboolean DBusInterface::OnColorTemperatureChanged(LightAppColorControl * colorControl, GDBusMethodInvocation * invocation,
+                                                  DBusInterface * self)
+{
+    // Do not handle on-change event if it was triggered by internal set
+    VerifyOrReturnValue(!self->mInternalSet, G_DBUS_METHOD_INVOCATION_HANDLED);
+
+    CommandHandlerCallback callback;
+    CommandHandler handler(&callback);
+
+    ConcreteCommandPath path{ self->mEndpointId, Clusters::ColorControl::Id, 0 };
+
+    Clusters::ColorControl::Commands::MoveToColorTemperature::DecodableType data;
+    data.colorTemperatureMireds = light_app_color_control_get_color_temperature_mireds(colorControl);
+
+    chip::DeviceLayer::StackLock lock;
+    ColorControlServer::Instance().moveToColorTempCommand(&handler, path, data);
+
+    return G_DBUS_METHOD_INVOCATION_HANDLED;
+}
+
+void DBusInterface::InitOnOff()
+{
+    bool isOn   = false;
+    auto status = Clusters::OnOff::Attributes::OnOff::Get(mEndpointId, &isOn);
+    VerifyOrReturn(status == EMBER_ZCL_STATUS_SUCCESS, ChipLogError(NotSpecified, "Error getting OnOff: 0x%x", status));
+    light_app_on_off_set_on_off(mIfaceOnOff, isOn);
+}
+
+void DBusInterface::InitColor()
+{
+    {
+        uint8_t value = 0;
+        auto status   = Clusters::ColorControl::Attributes::ColorMode::Get(mEndpointId, &value);
+        VerifyOrReturn(status == EMBER_ZCL_STATUS_SUCCESS, ChipLogError(NotSpecified, "Error getting ColorMode: 0x%x", status));
+        light_app_color_control_set_color_mode(mIfaceColorControl, value);
+    }
+    {
+        uint16_t value = 0;
+        auto status    = Clusters::ColorControl::Attributes::ColorTemperatureMireds::Get(mEndpointId, &value);
+        VerifyOrReturn(status == EMBER_ZCL_STATUS_SUCCESS,
+                       ChipLogError(NotSpecified, "Error getting ColorTemperatureMireds: 0x%x", status));
+        light_app_color_control_set_color_temperature_mireds(mIfaceColorControl, value);
+    }
+}
+
+}; // namespace example