[ICD] Add activeModeThreshold check for LIT ICDs (project-chip#31608)

* add activeModeThreshold check for LIT ICDs

* Change default ActiveModeTreshold to 5s

* Update LIT ICD checks

Author: mkardous-silabs

examples/lit-icd-app/linux/include/CHIPProjectAppConfig.h

@@ -39,4 +39,4 @@
 // ICD configurations
 #define CHIP_CONFIG_ICD_IDLE_MODE_DURATION_SEC 3600
 #define CHIP_CONFIG_ICD_ACTIVE_MODE_DURATION_MS 10000
-#define CHIP_CONFIG_ICD_ACTIVE_MODE_THRESHOLD_MS 1000
+#define CHIP_CONFIG_ICD_ACTIVE_MODE_THRESHOLD_MS 5000

examples/lit-icd-app/silabs/openthread.gni

@@ -40,4 +40,4 @@ sl_ot_active_interval_ms = 1000  # 1000ms Active Polling Interval
 # ICD Matter Configuration flags
 sl_idle_mode_interval_s = 3600  # 60min Idle Mode Interval
 sl_active_mode_interval_ms = 0  # 0 Active Mode Interval
-sl_active_mode_threshold_ms = 30000  # 30s Active Mode Threshold
+sl_active_mode_threshold_ms = 5000  # 5s Active Mode Threshold

src/app/icd/ICDConfigurationData.h

@@ -61,6 +61,8 @@ class ICDConfigurationData
 
     System::Clock::Milliseconds32 GetFastPollingInterval() { return mFastPollingInterval; }
 
+    uint32_t GetMinLitActiveModeThresholdMs() { return kMinLitActiveModeThreshold_ms; }
+
     /**
      * If ICD_ENFORCE_SIT_SLOW_POLL_LIMIT is set to 0, function will always return the configured Slow Polling interval
      * (CHIP_DEVICE_CONFIG_ICD_SLOW_POLL_INTERVAL).
@@ -93,6 +95,8 @@ class ICDConfigurationData
     void SetSlowPollingInterval(System::Clock::Milliseconds32 slowPollInterval) { mSlowPollingInterval = slowPollInterval; };
     void SetFastPollingInterval(System::Clock::Milliseconds32 fastPollInterval) { mFastPollingInterval = fastPollInterval; };
 
+    static constexpr uint32_t kMinLitActiveModeThreshold_ms = 5000;
+
     static_assert((CHIP_CONFIG_ICD_IDLE_MODE_DURATION_SEC) <= 64800,
                   "Spec requires the IdleModeDuration to be equal or inferior to 64800s.");
     static_assert((CHIP_CONFIG_ICD_IDLE_MODE_DURATION_SEC) >= 1,

src/app/icd/ICDManager.cpp

@@ -48,15 +48,20 @@ void ICDManager::Init(PersistentStorageDelegate * storage, FabricTable * fabricT
     VerifyOrDie(symmetricKeystore != nullptr);
     VerifyOrDie(exchangeManager != nullptr);
 
-    bool supportLIT = SupportsFeature(Feature::kLongIdleTimeSupport);
-    VerifyOrDieWithMsg((supportLIT == false) || SupportsFeature(Feature::kCheckInProtocolSupport), AppServer,
-                       "The CheckIn protocol feature is required for LIT support");
-    VerifyOrDieWithMsg((supportLIT == false) || SupportsFeature(Feature::kUserActiveModeTrigger), AppServer,
-                       "The user ActiveMode trigger feature is required for LIT support");
-
-    // Disabling check until LIT support is compelte
-    // VerifyOrDieWithMsg((supportLIT == false) && (GetSlowPollingInterval() <= GetSITPollingThreshold()) , AppServer,
-    //                    "LIT support is required for slow polling intervals superior to 15 seconds");
+    // LIT ICD Verification Checks
+    if (SupportsFeature(Feature::kLongIdleTimeSupport))
+    {
+        VerifyOrDieWithMsg(SupportsFeature(Feature::kCheckInProtocolSupport), AppServer,
+                           "The CheckIn protocol feature is required for LIT support.");
+        VerifyOrDieWithMsg(SupportsFeature(Feature::kUserActiveModeTrigger), AppServer,
+                           "The user ActiveMode trigger feature is required for LIT support.");
+        VerifyOrDieWithMsg(ICDConfigurationData::GetInstance().GetMinLitActiveModeThresholdMs() <=
+                               ICDConfigurationData::GetInstance().GetActiveModeThresholdMs(),
+                           AppServer, "The minimum ActiveModeThreshold value for a LIT ICD is 5 seconds.");
+        // Disabling check until LIT support is compelte
+        // VerifyOrDieWithMsg((GetSlowPollingInterval() <= GetSITPollingThreshold()) , AppServer,
+        //                    "LIT support is required for slow polling intervals superior to 15 seconds");
+    }
 
     mStorage     = storage;
     mFabricTable = fabricTable;

src/app/tests/suites/TestIcdManagementCluster.yaml

@@ -58,7 +58,7 @@ tests:
       command: "readAttribute"
       attribute: "ActiveModeThreshold"
       response:
-          value: 1000
+          value: 5000
 
     - label: "Read ICDCounter"
       command: "readAttribute"

src/lib/core/CHIPConfig.h

@@ -1599,7 +1599,7 @@ extern const char CHIP_NON_PRODUCTION_MARKER[];
  * @brief Default value for the ICD Management cluster ActiveModeThreshold attribute, in milliseconds
  */
 #ifndef CHIP_CONFIG_ICD_ACTIVE_MODE_THRESHOLD_MS
-#define CHIP_CONFIG_ICD_ACTIVE_MODE_THRESHOLD_MS 300
+#define CHIP_CONFIG_ICD_ACTIVE_MODE_THRESHOLD_MS 5000
 #endif
 
 /**