wiseconnect: Resolved issues when multiple events are set in si91x bus events.

Modified the osEventFlagsWait call to include the osFlagsNoClear
option, which ensures that the events are not cleared automatically.
After the events are received, manually clear them.

Upstream-status: Inappropriate [Zephyr specific workaround for osEventFlags]
Signed-off-by: Rahul Gurram <[email protected]>

Author: ragurram26

wiseconnect/components/device/silabs/si91x/wireless/src/sl_rsi_utility.c

@@ -1816,7 +1816,7 @@ uint32_t sli_si91x_wait_for_event(uint32_t event_mask, uint32_t timeout)
 
 uint32_t si91x_host_wait_for_bus_event(uint32_t event_mask, uint32_t timeout)
 {
-  uint32_t result = osEventFlagsWait(si91x_bus_events, event_mask, osFlagsWaitAny, timeout);
+  uint32_t result = osEventFlagsWait(si91x_bus_events, event_mask, osFlagsWaitAny | osFlagsNoClear, timeout);
 
   if (result == (uint32_t)osErrorTimeout || result == (uint32_t)osErrorResource) {
     return 0;

wiseconnect/components/sli_wifi_command_engine/src/sli_wifi_command_engine.c

@@ -45,6 +45,7 @@
  *               Variable Definitions
  ******************************************************/
 static osThreadId_t command_engine_ID = 0;
+extern osEventFlagsId_t si91x_bus_events;
 
 /******************************************************
  *               Function Declarations
@@ -117,6 +118,7 @@ void sli_wifi_command_engine(void *args)
 
     events_received |= sli_wifi_command_engine_wait_for_event(events_to_wait_on, wait_time);
 
+    osEventFlagsClear(si91x_bus_events, events_received);
     if (events_received & SLI_WLAN_TERMINATE_THREAD_EVENT) {
       // Clear the termination event flag
       events_received &= ~SLI_WLAN_TERMINATE_THREAD_EVENT;