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/*
*
* Copyright (c) 2020 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.
*/
/**
* @file DeviceCallbacks.cpp
*
* Implements all the callbacks to the application from the CHIP Stack
*
**/
#include "DeviceCallbacks.h"
#include "CHIPDeviceManager.h"
#include <app-common/zap-generated/ids/Attributes.h>
#include <app-common/zap-generated/ids/Clusters.h>
#include <app/CommandHandler.h>
#include <app/server/Dnssd.h>
#include <app/util/af.h>
#include <app/util/basic-types.h>
#include <app/util/util.h>
#include <lib/dnssd/Advertiser.h>
#include <support/CodeUtils.h>
#include <support/logging/CHIPLogging.h>
#include <support/logging/Constants.h>
#if CHIP_DEVICE_CONFIG_ENABLE_OTA_REQUESTOR
#include <ota/OTAInitializer.h>
#endif
#include "Globals.h"
#include "LEDWidget.h"
static const char * TAG = "app-devicecallbacks";
using namespace ::chip;
using namespace ::chip::Inet;
using namespace ::chip::System;
using namespace ::chip::DeviceLayer;
using namespace ::chip::DeviceManager;
using namespace ::chip::Logging;
uint32_t identifyTimerCount;
constexpr uint32_t kIdentifyTimerDelayMS = 250;
constexpr uint32_t kInitOTARequestorDelaySec = 3;
#if CHIP_DEVICE_CONFIG_ENABLE_OTA_REQUESTOR
void InitOTARequestorHandler(System::Layer * systemLayer, void * appState)
{
OTAInitializer::Instance().InitOTARequestor();
}
#endif
void DeviceCallbacks::DeviceEventCallback(const ChipDeviceEvent * event, intptr_t arg)
{
switch (event->Type)
{
case DeviceEventType::kInternetConnectivityChange:
OnInternetConnectivityChange(event);
break;
case DeviceEventType::kInterfaceIpAddressChanged:
if ((event->InterfaceIpAddressChanged.Type == InterfaceIpChangeType::kIpV4_Assigned) ||
(event->InterfaceIpAddressChanged.Type == InterfaceIpChangeType::kIpV6_Assigned))
{
// MDNS server restart on any ip assignment: if link local ipv6 is configured, that
// will not trigger a 'internet connectivity change' as there is no internet
// connectivity. MDNS still wants to refresh its listening interfaces to include the
// newly selected address.
chip::app::DnssdServer::Instance().StartServer();
}
break;
}
}
void DeviceCallbacks::PostAttributeChangeCallback(EndpointId endpointId, ClusterId clusterId, AttributeId attributeId, uint8_t type,
uint16_t size, uint8_t * value)
{
switch (clusterId)
{
case app::Clusters::OnOff::Id:
OnOnOffPostAttributeChangeCallback(endpointId, attributeId, value);
break;
case app::Clusters::Identify::Id:
OnIdentifyPostAttributeChangeCallback(endpointId, attributeId, value);
break;
default:
break;
}
}
void DeviceCallbacks::OnInternetConnectivityChange(const ChipDeviceEvent * event)
{
if (event->InternetConnectivityChange.IPv4 == kConnectivity_Established)
{
ChipLogProgress(DeviceLayer, "IPv4 Server ready...");
chip::app::DnssdServer::Instance().StartServer();
}
else if (event->InternetConnectivityChange.IPv4 == kConnectivity_Lost)
{
ChipLogProgress(DeviceLayer, "Lost IPv4 connectivity...");
}
if (event->InternetConnectivityChange.IPv6 == kConnectivity_Established)
{
ChipLogProgress(DeviceLayer, "IPv6 Server ready...");
chip::app::DnssdServer::Instance().StartServer();
#if CHIP_DEVICE_CONFIG_ENABLE_OTA_REQUESTOR
// Init OTA requestor only when we have gotten IPv6 address
if (OTAInitializer::Instance().CheckInit())
{
chip::DeviceLayer::SystemLayer().StartTimer(chip::System::Clock::Seconds32(kInitOTARequestorDelaySec),
InitOTARequestorHandler, nullptr);
}
#endif
}
else if (event->InternetConnectivityChange.IPv6 == kConnectivity_Lost)
{
ChipLogProgress(DeviceLayer, "Lost IPv6 connectivity...");
}
}
void DeviceCallbacks::OnOnOffPostAttributeChangeCallback(EndpointId endpointId, AttributeId attributeId, uint8_t * value)
{
VerifyOrExit(attributeId == app::Clusters::OnOff::Attributes::OnOff::Id,
ChipLogError(DeviceLayer, TAG, "Unhandled Attribute ID: '0x%04x", attributeId));
VerifyOrExit(endpointId == 1 || endpointId == 2,
ChipLogError(DeviceLayer, TAG, "Unexpected EndPoint ID: `0x%02x'", endpointId));
// At this point we can assume that value points to a bool value.
statusLED1.Set(*value);
exit:
return;
}
void IdentifyTimerHandler(Layer * systemLayer, void * appState, CHIP_ERROR error)
{
if (identifyTimerCount)
{
identifyTimerCount--;
}
}
void DeviceCallbacks::OnIdentifyPostAttributeChangeCallback(EndpointId endpointId, AttributeId attributeId, uint8_t * value)
{
VerifyOrExit(attributeId == app::Clusters::Identify::Attributes::IdentifyTime::Id,
ChipLogError(DeviceLayer, "[%s] Unhandled Attribute ID: '0x%04x", TAG, attributeId));
VerifyOrExit(endpointId == 1, ChipLogError(DeviceLayer, "[%s] Unexpected EndPoint ID: `0x%02x'", TAG, endpointId));
// timerCount represents the number of callback executions before we stop the timer.
// value is expressed in seconds and the timer is fired every 250ms, so just multiply value by 4.
// Also, we want timerCount to be odd number, so the ligth state ends in the same state it starts.
identifyTimerCount = (*value) * 4;
exit:
return;
}