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/*
*
* Copyright (c) 2021 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 "AppTask.h"
#include "BoltLockManager.h"
#include <LEDWidget.h>
#include <app/server/Dnssd.h>
#include <app/server/OnboardingCodesUtil.h>
#include <app/server/Server.h>
#include <credentials/DeviceAttestationCredsProvider.h>
#include <credentials/examples/DeviceAttestationCredsExample.h>
#include <lib/support/logging/CHIPLogging.h>
#include <platform/CHIPDeviceLayer.h>
// mbed-os headers
#include "drivers/Timeout.h"
#include "events/EventQueue.h"
// ZAP -- ZCL Advanced Platform
#include <app-common/zap-generated/attributes/Accessors.h>
#include <app-common/zap-generated/ids/Clusters.h>
#include <app/util/attribute-storage.h>
#ifdef CAPSENSE_ENABLED
#include "capsense.h"
#else
#include "drivers/InterruptIn.h"
#include "platform/Callback.h"
#endif
#define FACTORY_RESET_TRIGGER_TIMEOUT (MBED_CONF_APP_FACTORY_RESET_TRIGGER_TIMEOUT)
#define FACTORY_RESET_CANCEL_WINDOW_TIMEOUT (MBED_CONF_APP_FACTORY_RESET_CANCEL_WINDOW_TIMEOUT)
#define LOCK_BUTTON (MBED_CONF_APP_LOCK_BUTTON)
#define FUNCTION_BUTTON (MBED_CONF_APP_FUNCTION_BUTTON)
#define BUTTON_PUSH_EVENT 1
#define BUTTON_RELEASE_EVENT 0
constexpr uint32_t kPublishServicePeriodUs = 5000000;
static LEDWidget sStatusLED(MBED_CONF_APP_SYSTEM_STATE_LED);
static LEDWidget sLockLED(MBED_CONF_APP_LOCK_STATE_LED);
#ifdef CAPSENSE_ENABLED
static mbed::CapsenseButton CapFunctionButton(Capsense::getInstance(), 0);
static mbed::CapsenseButton CapLockButton(Capsense::getInstance(), 1);
#else
static mbed::InterruptIn sLockButton(LOCK_BUTTON);
static mbed::InterruptIn sFunctionButton(FUNCTION_BUTTON);
#endif
static bool sIsWiFiStationProvisioned = false;
static bool sIsWiFiStationEnabled = false;
static bool sIsWiFiStationConnected = false;
static bool sIsPairedToAccount = false;
static bool sHaveBLEConnections = false;
static mbed::Timeout sFunctionTimer;
static events::EventQueue sAppEventQueue;
using namespace ::chip;
using namespace ::chip::Credentials;
using namespace ::chip::DeviceLayer;
AppTask AppTask::sAppTask;
int AppTask::Init()
{
CHIP_ERROR error;
// Register the callback to init the MDNS server when connectivity is available
PlatformMgr().AddEventHandler(
[](const ChipDeviceEvent * event, intptr_t arg) {
// Restart the server whenever an ip address is renewed
if (event->Type == DeviceEventType::kInternetConnectivityChange)
{
if (event->InternetConnectivityChange.IPv4 == kConnectivity_Established ||
event->InternetConnectivityChange.IPv6 == kConnectivity_Established)
{
chip::app::DnssdServer::Instance().StartServer();
}
}
},
0);
// Initialize LEDs
sLockLED.Set(!BoltLockMgr().IsUnlocked());
// Initialize buttons
#ifdef CAPSENSE_ENABLED
CapFunctionButton.fall(mbed::callback(this, &AppTask::FunctionButtonPressEventHandler));
CapFunctionButton.rise(mbed::callback(this, &AppTask::FunctionButtonReleaseEventHandler));
CapLockButton.fall(mbed::callback(this, &AppTask::LockButtonPressEventHandler));
#else
sLockButton.fall(mbed::callback(this, &AppTask::LockButtonPressEventHandler));
sFunctionButton.fall(mbed::callback(this, &AppTask::FunctionButtonPressEventHandler));
sFunctionButton.rise(mbed::callback(this, &AppTask::FunctionButtonReleaseEventHandler));
#endif
// Initialize lock manager
BoltLockMgr().Init();
BoltLockMgr().SetCallbacks(ActionInitiated, ActionCompleted);
// Init ZCL Data Model and start server
static chip::CommonCaseDeviceServerInitParams initParams;
(void) initParams.InitializeStaticResourcesBeforeServerInit();
error = Server::GetInstance().Init(initParams);
if (error != CHIP_NO_ERROR)
{
ChipLogError(NotSpecified, "Server initialization failed: %s", error.AsString());
return EXIT_FAILURE;
}
// Initialize device attestation config
SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());
ConfigurationMgr().LogDeviceConfig();
// QR code will be used with CHIP Tool
PrintOnboardingCodes(chip::RendezvousInformationFlags(chip::RendezvousInformationFlag::kBLE));
error = GetDFUManager().Init();
if (error != CHIP_NO_ERROR)
{
ChipLogError(NotSpecified, "DFU manager initialization failed: %s", error.AsString());
return EXIT_FAILURE;
}
return 0;
}
int AppTask::StartApp()
{
int ret = Init();
if (ret)
{
ChipLogError(NotSpecified, "AppTask.Init() failed");
return ret;
}
ChipLogProgress(NotSpecified, "Mbed lock-app example application run");
while (true)
{
sAppEventQueue.dispatch(100);
// Collect connectivity and configuration state from the CHIP stack. Because the
// CHIP event loop is being run in a separate task, the stack must be locked
// while these values are queried. However we use a non-blocking lock request
// (TryLockChipStack()) to avoid blocking other UI activities when the CHIP
// task is busy (e.g. with a long crypto operation).
if (PlatformMgr().TryLockChipStack())
{
sIsWiFiStationProvisioned = ConnectivityMgr().IsWiFiStationProvisioned();
sIsWiFiStationEnabled = ConnectivityMgr().IsWiFiStationEnabled();
sIsWiFiStationConnected = ConnectivityMgr().IsWiFiStationConnected();
sHaveBLEConnections = (ConnectivityMgr().NumBLEConnections() != 0);
PlatformMgr().UnlockChipStack();
}
// Update the status LED if factory reset has not been initiated.
//
// If system is connected to Wi-Fi station, keep the LED On constantly.
//
// If Wi-Fi is provisioned, but not connected to Wi-Fi station yet
// THEN blink the LED Off for a short period of time.
//
// If the system has ble connection(s) uptill the stage above, THEN blink the LEDs at an even
// rate of 100ms.
//
// Otherwise, blink the LED ON for a very short time.
if (sAppTask.mFunction != kFunction_FactoryReset)
{
if (sIsWiFiStationConnected)
{
sStatusLED.Set(true);
}
else if (sIsWiFiStationProvisioned && sIsWiFiStationEnabled && sIsPairedToAccount && !sIsWiFiStationConnected)
{
sStatusLED.Blink(950, 50);
}
else if (sHaveBLEConnections)
{
sStatusLED.Blink(100, 100);
}
else
{
sStatusLED.Blink(50, 950);
}
}
sStatusLED.Animate();
sLockLED.Animate();
}
}
void AppTask::LockActionEventHandler(AppEvent * aEvent)
{
BoltLockManager::Action_t action = BoltLockManager::INVALID_ACTION;
int32_t actor = 0;
if (aEvent->Type == AppEvent::kEventType_Lock)
{
action = static_cast<BoltLockManager::Action_t>(aEvent->LockEvent.Action);
actor = aEvent->LockEvent.Actor;
}
else if (aEvent->Type == AppEvent::kEventType_Button)
{
action = BoltLockMgr().IsUnlocked() ? BoltLockManager::LOCK_ACTION : BoltLockManager::UNLOCK_ACTION;
actor = AppEvent::kEventType_Button;
}
if (action != BoltLockManager::INVALID_ACTION && !BoltLockMgr().InitiateAction(actor, action))
ChipLogProgress(NotSpecified, "Action is already in progress or active.");
}
void AppTask::LockButtonPressEventHandler()
{
AppEvent button_event;
button_event.Type = AppEvent::kEventType_Button;
button_event.ButtonEvent.Pin = LOCK_BUTTON;
button_event.ButtonEvent.Action = BUTTON_PUSH_EVENT;
button_event.Handler = LockActionEventHandler;
sAppTask.PostEvent(&button_event);
}
void AppTask::FunctionButtonPressEventHandler()
{
AppEvent button_event;
button_event.Type = AppEvent::kEventType_Button;
button_event.ButtonEvent.Pin = FUNCTION_BUTTON;
button_event.ButtonEvent.Action = BUTTON_PUSH_EVENT;
button_event.Handler = FunctionHandler;
sAppTask.PostEvent(&button_event);
}
void AppTask::FunctionButtonReleaseEventHandler()
{
AppEvent button_event;
button_event.Type = AppEvent::kEventType_Button;
button_event.ButtonEvent.Pin = FUNCTION_BUTTON;
button_event.ButtonEvent.Action = BUTTON_RELEASE_EVENT;
button_event.Handler = FunctionHandler;
sAppTask.PostEvent(&button_event);
}
void AppTask::ButtonEventHandler(uint32_t id, bool pushed)
{
if (id > 1)
{
ChipLogError(NotSpecified, "Wrong button ID");
return;
}
AppEvent button_event;
button_event.Type = AppEvent::kEventType_Button;
button_event.ButtonEvent.Pin = id == 0 ? LOCK_BUTTON : FUNCTION_BUTTON;
button_event.ButtonEvent.Action = pushed ? BUTTON_PUSH_EVENT : BUTTON_RELEASE_EVENT;
if (id == 0)
{
button_event.Handler = LockActionEventHandler;
}
else
{
button_event.Handler = FunctionHandler;
}
sAppTask.PostEvent(&button_event);
}
void AppTask::ActionInitiated(BoltLockManager::Action_t aAction, int32_t aActor)
{
// If the action has been initiated by the lock, update the bolt lock trait
// and start flashing the LEDs rapidly to indicate action initiation.
if (aAction == BoltLockManager::LOCK_ACTION)
{
ChipLogProgress(NotSpecified, "Lock Action has been initiated");
}
else if (aAction == BoltLockManager::UNLOCK_ACTION)
{
ChipLogProgress(NotSpecified, "Unlock Action has been initiated");
}
sLockLED.Blink(50, 50);
}
void AppTask::ActionCompleted(BoltLockManager::Action_t aAction, int32_t aActor)
{
// if the action has been completed by the lock, update the bolt lock trait.
// Turn on the lock LED if in a LOCKED state OR
// Turn off the lock LED if in an UNLOCKED state.
if (aAction == BoltLockManager::LOCK_ACTION)
{
ChipLogProgress(NotSpecified, "Lock Action has been completed");
sLockLED.Set(true);
}
else if (aAction == BoltLockManager::UNLOCK_ACTION)
{
ChipLogProgress(NotSpecified, "Unlock Action has been completed");
sLockLED.Set(false);
}
if (aActor == AppEvent::kEventType_Button)
{
sAppTask.UpdateClusterState();
}
}
void AppTask::CancelTimer()
{
sFunctionTimer.detach();
mFunctionTimerActive = false;
}
void AppTask::StartTimer(uint32_t aTimeoutInMs)
{
auto chronoTimeoutMs = std::chrono::duration<uint32_t, std::milli>(aTimeoutInMs);
sFunctionTimer.attach(mbed::callback(this, &AppTask::TimerEventHandler), chronoTimeoutMs);
mFunctionTimerActive = true;
}
void AppTask::PostEvent(AppEvent * aEvent)
{
auto handle = sAppEventQueue.call([event = *aEvent, this] { DispatchEvent(&event); });
if (!handle)
{
ChipLogError(NotSpecified, "Failed to post event to app task event queue: Not enough memory");
}
}
void AppTask::DispatchEvent(const AppEvent * aEvent)
{
if (aEvent->Handler)
{
aEvent->Handler(const_cast<AppEvent *>(aEvent));
}
else
{
ChipLogError(NotSpecified, "Event received with no handler. Dropping event.");
}
}
void AppTask::TimerEventHandler()
{
AppEvent event;
event.Type = AppEvent::kEventType_Timer;
// event.TimerEvent.Context = nullptr;
event.Handler = FunctionTimerEventHandler;
sAppTask.PostEvent(&event);
}
// static
void AppTask::FunctionTimerEventHandler(AppEvent * aEvent)
{
if (aEvent->Type != AppEvent::kEventType_Timer)
return;
// If we reached here, the button was held past FACTORY_RESET_TRIGGER_TIMEOUT, initiate factory reset
if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_StartBleAdv)
{
ChipLogProgress(NotSpecified, "Factory Reset Triggered. Release button within %ums to cancel.",
FACTORY_RESET_CANCEL_WINDOW_TIMEOUT);
// Start timer for FACTORY_RESET_CANCEL_WINDOW_TIMEOUT to allow user to
// cancel, if required.
sAppTask.StartTimer(FACTORY_RESET_CANCEL_WINDOW_TIMEOUT);
sAppTask.mFunction = kFunction_FactoryReset;
// Turn off all LEDs before starting blink to make sure blink is co-ordinated.
sStatusLED.Set(false);
sLockLED.Set(false);
sStatusLED.Blink(500);
sLockLED.Blink(500);
}
else if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_FactoryReset)
{
// Set lock status LED back to show state of lock.
sLockLED.Set(!BoltLockMgr().IsUnlocked());
// Actually trigger Factory Reset
ChipLogProgress(NotSpecified, "Factory Reset initiated");
sAppTask.mFunction = kFunction_NoneSelected;
chip::Server::GetInstance().ScheduleFactoryReset();
}
}
void AppTask::FunctionHandler(AppEvent * aEvent)
{
if (aEvent->ButtonEvent.Pin != FUNCTION_BUTTON)
return;
// To trigger software update: press the FUNCTION_BUTTON button briefly (< FACTORY_RESET_TRIGGER_TIMEOUT)
// To initiate factory reset: press the FUNCTION_BUTTON for FACTORY_RESET_TRIGGER_TIMEOUT + FACTORY_RESET_CANCEL_WINDOW_TIMEOUT
// All LEDs start blinking after FACTORY_RESET_TRIGGER_TIMEOUT to signal factory reset has been initiated.
// To cancel factory reset: release the FUNCTION_BUTTON once all LEDs start blinking within the
// FACTORY_RESET_CANCEL_WINDOW_TIMEOUT
if (aEvent->ButtonEvent.Action == BUTTON_PUSH_EVENT)
{
if (!sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_NoneSelected)
{
sAppTask.StartTimer(FACTORY_RESET_TRIGGER_TIMEOUT);
sAppTask.mFunction = kFunction_StartBleAdv;
}
}
else
{
// If the button was released before factory reset got initiated, trigger a software update.
if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_StartBleAdv)
{
sAppTask.CancelTimer();
sAppTask.mFunction = kFunction_NoneSelected;
chip::Server::GetInstance().GetFabricTable().DeleteAllFabrics();
if (ConnectivityMgr().IsBLEAdvertisingEnabled())
{
ChipLogProgress(NotSpecified, "BLE advertising is already enabled");
return;
}
if (chip::Server::GetInstance().GetCommissioningWindowManager().OpenBasicCommissioningWindow() != CHIP_NO_ERROR)
{
ChipLogProgress(NotSpecified, "OpenBasicCommissioningWindow() failed");
}
}
else if (sAppTask.mFunctionTimerActive && sAppTask.mFunction == kFunction_FactoryReset)
{
// Set lock status LED back to show state of lock.
sLockLED.Set(!BoltLockMgr().IsUnlocked());
sAppTask.CancelTimer();
// Change the function to none selected since factory reset has been canceled.
sAppTask.mFunction = kFunction_NoneSelected;
ChipLogProgress(NotSpecified, "Factory Reset has been Canceled");
}
}
}
void AppTask::UpdateClusterState()
{
uint8_t newValue = !BoltLockMgr().IsUnlocked();
// write the new on/off value
EmberAfStatus status = app::Clusters::OnOff::Attributes::OnOff::Set(1, newValue);
if (status != EMBER_ZCL_STATUS_SUCCESS)
{
ChipLogError(NotSpecified, "ZCL update failed: %lx", status);
}
}