[Silabs] Adds fix for BTN low power mode for SiWx917 SoC and power manager

examples/air-quality-sensor-app/silabs/README.md

@@ -257,6 +257,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/dishwasher-app/silabs/README.md

@@ -10,6 +10,7 @@ An example showing the use of Matter on the Silicon Labs EFR32 MG24 boards.
     -   [Flashing the Application](#flashing-the-application)
     -   [Viewing Logging Output](#viewing-logging-output)
     -   [Running the Complete Example](#running-the-complete-example)
+        -   [Commissioning](#commissioning)
 
 <hr>
 
@@ -211,6 +212,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/energy-management-app/silabs/README.md

@@ -257,6 +257,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/light-switch-app/silabs/README.md

@@ -263,6 +263,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/lighting-app/silabs/README.md

@@ -245,6 +245,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/lit-icd-app/silabs/README.md

@@ -250,6 +250,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/lock-app/silabs/README.md

@@ -277,6 +277,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/platform/silabs/MatterConfig.cpp

@@ -41,6 +41,7 @@
 #endif
 
 #if defined(SLI_SI91X_MCU_INTERFACE) && SLI_SI91X_MCU_INTERFACE == 1
+#include "SiWxPlatformInterface.h"
 #include "WifiInterfaceAbstraction.h"
 #endif // SLI_SI91X_MCU_INTERFACE
 
@@ -328,6 +329,7 @@ CHIP_ERROR SilabsMatterConfig::InitWiFi(void)
 extern "C" void vApplicationIdleHook(void)
 {
 #if (SLI_SI91X_MCU_INTERFACE && CHIP_CONFIG_ENABLE_ICD_SERVER)
-    sl_si91x_invoke_btn_press_event();
+    SiWxPlatformInterface::sl_si91x_btn_event_handler();
+    SiWxPlatformInterface::sl_si91x_uart_power_requirement_handler();
 #endif
 }

examples/platform/silabs/SiWx917/SiWxPlatformInterface.h

@@ -0,0 +1,73 @@
+/*
+ *
+ *    Copyright (c) 2024 Project CHIP Authors
+ *
+ *    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 <app/icd/server/ICDServerConfig.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+#if CHIP_CONFIG_ENABLE_ICD_SERVER
+#if SLI_SI91X_MCU_INTERFACE
+#include "sl_si91x_button.h"
+#include "sl_si91x_button_pin_config.h"
+#include "sl_si91x_driver_gpio.h"
+/**
+ * @brief      invoked when button press event is received when in sleep
+ * @param[in]  pin_intr GPIO pin interrupt number.
+ * @return     none.
+ * @note       this is a callback from the Wiseconnect SDK
+ */
+void gpio_uulp_pin_interrupt_callback(uint32_t pin_intr);
+#endif // SLI_SI91X_MCU_INTERFACE
+#endif // CHIP_CONFIG_ENABLE_ICD_SERVER
+#ifdef __cplusplus
+}
+#endif
+
+namespace chip {
+namespace DeviceLayer {
+namespace Silabs {
+namespace SiWxPlatformInterface {
+
+#if CHIP_CONFIG_ENABLE_ICD_SERVER
+#if SLI_SI91X_MCU_INTERFACE
+/**
+ * @brief      Required to invoke button press event during sleep as falling edge is not detected
+ * @param[in]  none.
+ * @note       flow is GPIO wakeup due to BTN0 press -> check button state in idle task required as the GPIO interrupt is not
+ * detected during sleep for BUTTON RELEASED
+ */
+inline void sl_si91x_btn_event_handler()
+{
+    sl_button_on_change(SL_BUTTON_BTN0_NUMBER,
+                        (sl_si91x_gpio_get_uulp_npss_pin(SL_BUTTON_BTN0_PIN) == LOW) ? BUTTON_PRESSED : BUTTON_RELEASED);
+}
+
+/**
+ * @brief      Required to enable MATTER shell UART with ICD feature flag
+ * @param[in]  none.
+ * @note       this requires hardware jumping of the GPIO PINs to work with the baseboard.
+ */
+void sl_si91x_uart_power_requirement_handler();
+#endif // SLI_SI91X_MCU_INTERFACE
+#endif // CHIP_CONFIG_ENABLE_ICD_SERVER
+} // namespace SiWxPlatformInterface
+} // namespace Silabs
+} // namespace DeviceLayer
+} // namespace chip

examples/platform/silabs/SiWx917/SiWxWifiInterface.cpp

@@ -74,8 +74,11 @@ extern "C" {
 #endif
 
 #if CHIP_CONFIG_ENABLE_ICD_SERVER && SLI_SI91X_MCU_INTERFACE
+#include "SiWxPlatformInterface.h"
+
 #include "rsi_rom_power_save.h"
-#include "sl_si91x_button_pin_config.h"
+#include "sl_gpio_board.h"
+#include "sl_si91x_driver_gpio.h"
 #include "sl_si91x_power_manager.h"
 #endif // CHIP_CONFIG_ENABLE_ICD_SERVER && SLI_SI91X_MCU_INTERFACE
 
@@ -522,23 +525,27 @@ int32_t sl_wifi_platform_disconnect(void)
 
 #if CHIP_CONFIG_ENABLE_ICD_SERVER
 #if SLI_SI91X_MCU_INTERFACE
-// Required to invoke button press event during sleep as falling edge is not detected
-void sl_si91x_invoke_btn_press_event(void)
+void gpio_uulp_pin_interrupt_callback(uint32_t pin_intr)
 {
-    // TODO: should be removed once we are getting the press interrupt for button 0 with sleep
-    if (!RSI_NPSSGPIO_GetPin(SL_BUTTON_BTN0_PIN) && !btn0_pressed)
-    {
-        sl_button_on_change(SL_BUTTON_BTN0_NUMBER, 1 /* Button Pressed */);
-        btn0_pressed = true;
-    }
-    if (RSI_NPSSGPIO_GetPin(SL_BUTTON_BTN0_PIN))
+    // UULP_GPIO_2 is used to detect the button 0 press
+    VerifyOrReturn(pin_intr == RTE_UULP_GPIO_2_PIN, ChipLogError(DeviceLayer, "invalid pin interrupt: %ld", pin_intr));
+    sl_status_t status      = SL_STATUS_OK;
+    uint8_t pin_intr_status = sl_si91x_gpio_get_uulp_npss_pin(pin_intr);
+    if (pin_intr_status == LOW)
     {
-        btn0_pressed = false;
+        // BTN_0 is pressed
+        // NOTE: the GPIO is masked since the interrupt is invoked before scheduler is started, thus this is required to hand over
+        // control to scheduler, the PIN is unmasked in the power manager flow before going to sleep
+        status = sl_si91x_gpio_driver_mask_uulp_npss_interrupt(BIT(pin_intr));
+        VerifyOrReturn(status == SL_STATUS_OK, ChipLogError(DeviceLayer, "failed to mask interrupt: %ld", status));
     }
+}
 
+void chip::DeviceLayer::Silabs::SiWxPlatformInterface::sl_si91x_uart_power_requirement_handler(void)
+{
 #ifdef ENABLE_CHIP_SHELL
     // Checking the UULP PIN 1 status to reinit the UART and not allow the device to go to sleep
-    if (RSI_NPSSGPIO_GetPin(RTE_UULP_GPIO_1_PIN))
+    if (sl_si91x_gpio_get_uulp_npss_pin(RTE_UULP_GPIO_1_PIN))
     {
         if (!ps_requirement_added)
         {

examples/platform/silabs/wifi/WifiInterfaceAbstraction.h

@@ -105,9 +105,6 @@ extern "C" {
 sl_status_t sl_matter_wifi_platform_init(void);
 
 #if CHIP_CONFIG_ENABLE_ICD_SERVER
-#if SLI_SI91X_MCU_INTERFACE
-void sl_si91x_invoke_btn_press_event();
-#endif // SLI_SI91X_MCU_INTERFACE
 #if SLI_SI917
 int32_t wfx_rsi_power_save(rsi_power_save_profile_mode_t sl_si91x_ble_state, sl_si91x_performance_profile_t sl_si91x_wifi_state);
 #else

examples/pump-app/silabs/README.md

@@ -242,6 +242,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/smoke-co-alarm-app/silabs/README.md

@@ -260,6 +260,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

examples/thermostat/silabs/README.md

@@ -251,6 +251,7 @@ combination with JLinkRTTClient as follows:
         -   _Press and Release_ : Start, or restart, BLE advertisement in fast mode. It will advertise in this mode
             for 30 seconds. The device will then switch to a slower interval advertisement.
             After 15 minutes, the advertisement stops.
+            Additionally, it will cycle through the QR code, application status screen and device status screen, respectively.
 
         -   _Pressed and hold for 6 s_ : Initiates the factory reset of the device.
             Releasing the button within the 6-second window cancels the factory reset

src/platform/silabs/platformAbstraction/WiseMcuSpam.cpp

@@ -159,21 +159,21 @@ void sl_button_on_change(uint8_t btn, uint8_t btnAction)
     // Currently the btn0 is pull-up resistor due to which is sends a release event on every wakeup
     if (btn == SL_BUTTON_BTN0_NUMBER)
     {
-        if (btnAction == BUTTON_PRESSED)
+        // if the btn was not pressed and only a release event came, ignore it
+        // if the btn was already pressed and another press event came, ignore it
+        // essentially, if both of them are in the same state then ignore it.
+        VerifyOrReturn(btnAction != btn0_pressed);
+
+        if ((btnAction == BUTTON_PRESSED) && (btn0_pressed == false))
         {
             btn0_pressed = true;
         }
-        else if ((btnAction == BUTTON_RELEASED) && (btn0_pressed == false))
-        {
-            // if the btn was not pressed and only a release event came, ignore it
-            return;
-        }
         else if ((btnAction == BUTTON_RELEASED) && (btn0_pressed == true))
         {
             btn0_pressed = false;
         }
     }
-#endif /* SL_ICD_ENABLED */
+#endif // SL_ICD_ENABLED
     if (Silabs::GetPlatform().mButtonCallback == nullptr)
     {
         return;

third_party/silabs/SiWx917_sdk.gni

@@ -321,9 +321,12 @@ template("siwx917_sdk") {
         "SL_ACTIVE_MODE_DURATION_MS=${sl_active_mode_duration_ms}",
         "SL_IDLE_MODE_DURATION_S=${sl_idle_mode_duration_s}",
         "SL_ICD_SUPPORTED_CLIENTS_PER_FABRIC=${sl_icd_supported_clients_per_fabric}",
-        "SL_SI91X_NPSS_GPIO_BTN_HANDLER=1",
         "SL_SI91X_POWER_MANAGER_UC_AVAILABLE=1",
         "SL_SI91X_TICKLESS_MODE=1",
+
+        # Enable Wakeup source for ICD
+        "SL_ENABLE_GPIO_WAKEUP_SOURCE=1",
+        "ENABLE_NPSS_GPIO_2=1",
       ]
     }