[Silabs] Enabling the sleepy device for EFR32 and WF200 combo (#25690)

* enabling the sleepy device for EFR32 and rs911x combo

* Restyled by whitespace

* Restyled by clang-format

* Restyled by gn

* addressing review comments

* inital wf200 changes

* Added changes for power save mode WF200

* Adds fix for power save mode in WF200

* Revert "addressing review comments"

This reverts commit 5909765.

* Revert "Restyled by gn"

This reverts commit 8156ea9.

* Revert "Restyled by clang-format"

This reverts commit 6786158.

* Revert "Restyled by whitespace"

This reverts commit d35ecfd.

* Revert "enabling the sleepy device for EFR32 and rs911x combo"

This reverts commit 2967ff0.

* Removed the unwanted line

* Adds restyle changes

* Adds fix for function name changes

---------

Co-authored-by: Chirag Bansal <chirag.bansal@silabs.com>
Co-authored-by: Restyled.io <commits@restyled.io>
Co-authored-by: chirag-silabs <100861685+chirag-silabs@users.noreply.github.com>

examples/platform/silabs/efr32/wf200/efr_spi.c

@@ -33,12 +33,9 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "AppConfig.h"
 #include "FreeRTOS.h"
 #include "semphr.h"
-#ifdef SLEEP_ENABLED
-#include "sl_power_manager.h"
-#endif
-#include "AppConfig.h"
 
 #include "gpiointerrupt.h"
 
@@ -48,6 +45,10 @@
 #include "sl_wfx_task.h"
 #include "wfx_host_events.h"
 
+#if defined(SL_CATALOG_POWER_MANAGER_PRESENT)
+#include "sl_power_manager.h"
+#endif
+
 #if defined(EFR32MG24)
 #include "spi_multiplex.h"
 StaticSemaphore_t spi_sem_peripharal;
@@ -166,7 +167,7 @@ sl_status_t sl_wfx_host_spi_cs_deassert()
 }
 
 /****************************************************************************
- * @fn  static bool rx_dma_complete(unsigned int channel, unsigned int sequenceNo, void *userParam)
+ * @fn  static bool dma_complete(unsigned int channel, unsigned int sequenceNo, void *userParam)
  * @brief
  *     function called when the DMA complete
  * @param[in] channel:
@@ -175,7 +176,7 @@ sl_status_t sl_wfx_host_spi_cs_deassert()
  * @return returns true if suucessful,
  *          false otherwise
  *****************************************************************************/
-static bool rx_dma_complete(unsigned int channel, unsigned int sequenceNo, void * userParam)
+static bool dma_complete(unsigned int channel, unsigned int sequenceNo, void * userParam)
 {
     (void) channel;
     (void) sequenceNo;
@@ -185,6 +186,10 @@ static bool rx_dma_complete(unsigned int channel, unsigned int sequenceNo, void
     xSemaphoreGiveFromISR(spi_sem, &xHigherPriorityTaskWoken);
     portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
 
+#if defined(SL_CATALOG_POWER_MANAGER_PRESENT)
+    sl_power_manager_remove_em_requirement(SL_POWER_MANAGER_EM1);
+#endif
+
     return true;
 }
 
@@ -198,9 +203,13 @@ static bool rx_dma_complete(unsigned int channel, unsigned int sequenceNo, void
  *****************************************************************************/
 void receiveDMA(uint8_t * buffer, uint16_t buffer_length)
 {
+#if defined(SL_CATALOG_POWER_MANAGER_PRESENT)
+    sl_power_manager_add_em_requirement(SL_POWER_MANAGER_EM1);
+#endif
+
     // Start receive DMA.
     DMADRV_PeripheralMemory(rx_dma_channel, MY_USART_RX_SIGNAL, (void *) buffer, (void *) &(MY_USART->RXDATA), true, buffer_length,
-                            dmadrvDataSize1, rx_dma_complete, NULL);
+                            dmadrvDataSize1, dma_complete, NULL);
 
     // Start transmit DMA.
     DMADRV_MemoryPeripheral(tx_dma_channel, MY_USART_TX_SIGNAL, (void *) &(MY_USART->TXDATA), (void *) &(dummy_tx_data), false,
@@ -217,10 +226,14 @@ void receiveDMA(uint8_t * buffer, uint16_t buffer_length)
  *****************************************************************************/
 void transmitDMA(uint8_t * buffer, uint16_t buffer_length)
 {
+#if defined(SL_CATALOG_POWER_MANAGER_PRESENT)
+    sl_power_manager_add_em_requirement(SL_POWER_MANAGER_EM1);
+#endif
+
     // Receive DMA runs only to initiate callback
     // Start receive DMA.
     DMADRV_PeripheralMemory(rx_dma_channel, MY_USART_RX_SIGNAL, &dummy_rx_data, (void *) &(MY_USART->RXDATA), false, buffer_length,
-                            dmadrvDataSize1, rx_dma_complete, NULL);
+                            dmadrvDataSize1, dma_complete, NULL);
     // Start transmit DMA.
     DMADRV_MemoryPeripheral(tx_dma_channel, MY_USART_TX_SIGNAL, (void *) &(MY_USART->TXDATA), (void *) buffer, true, buffer_length,
                             dmadrvDataSize1, NULL, NULL);

examples/platform/silabs/efr32/wf200/host_if.cpp

@@ -578,6 +578,11 @@ static void wfx_events_task(void * p_arg)
                 {
                     wfx_ipv6_notify(1);
                     hasNotifiedIPV6 = true;
+
+                    // send device to power save mode
+                    sl_wfx_set_power_mode(WFM_PM_MODE_DTIM, WFM_PM_POLL_FAST_PS, 0);
+                    sl_wfx_enable_device_power_save();
+
                     if (!hasNotifiedWifiConnectivity)
                     {
                         wfx_connected_notify(CONNECTION_STATUS_SUCCESS, &ap_mac);