Add config option for event groups and stream buffers

include/FreeRTOS.h

@@ -318,6 +318,14 @@
     #define configUSE_TIMERS    0
 #endif
 
+#ifndef configUSE_EVENT_GROUPS
+    #define configUSE_EVENT_GROUPS    1
+#endif
+
+#ifndef configUSE_STREAM_BUFFERS
+    #define configUSE_STREAM_BUFFERS    1
+#endif
+
 #ifndef configUSE_DAEMON_TASK_STARTUP_HOOK
     #define configUSE_DAEMON_TASK_STARTUP_HOOK    0
 #endif

include/event_groups.h

@@ -139,6 +139,9 @@ typedef TickType_t               EventBits_t;
  * each event group has 56 usable bits (bit 0 to bit 53). The EventBits_t type
  * is used to store event bits within an event group.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for xEventGroupCreate()
+ * to be available.
+ *
  * @return If the event group was created then a handle to the event group is
  * returned.  If there was insufficient FreeRTOS heap available to create the
  * event group then NULL is returned.  See https://www.FreeRTOS.org/a00111.html
@@ -196,6 +199,9 @@ typedef TickType_t               EventBits_t;
  * each event group has 56 usable bits (bit 0 to bit 53).  The EventBits_t type
  * is used to store event bits within an event group.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for xEventGroupCreateStatic()
+ * to be available.
+ *
  * @param pxEventGroupBuffer pxEventGroupBuffer must point to a variable of type
  * StaticEventGroup_t, which will be then be used to hold the event group's data
  * structures, removing the need for the memory to be allocated dynamically.
@@ -238,6 +244,9 @@ typedef TickType_t               EventBits_t;
  *
  * This function cannot be called from an interrupt.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for xEventGroupWaitBits()
+ * to be available.
+ *
  * @param xEventGroup The event group in which the bits are being tested.  The
  * event group must have previously been created using a call to
  * xEventGroupCreate().
@@ -331,6 +340,9 @@ EventBits_t xEventGroupWaitBits( EventGroupHandle_t xEventGroup,
  * Clear bits within an event group.  This function cannot be called from an
  * interrupt.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for xEventGroupClearBits()
+ * to be available.
+ *
  * @param xEventGroup The event group in which the bits are to be cleared.
  *
  * @param uxBitsToClear A bitwise value that indicates the bit or bits to clear
@@ -461,6 +473,9 @@ EventBits_t xEventGroupClearBits( EventGroupHandle_t xEventGroup,
  * Setting bits in an event group will automatically unblock tasks that are
  * blocked waiting for the bits.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for xEventGroupSetBits()
+ * to be available.
+ *
  * @param xEventGroup The event group in which the bits are to be set.
  *
  * @param uxBitsToSet A bitwise value that indicates the bit or bits to set.
@@ -625,6 +640,9 @@ EventBits_t xEventGroupSetBits( EventGroupHandle_t xEventGroup,
  * this case all the bits specified by uxBitsToWait will be automatically
  * cleared before the function returns.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for xEventGroupSync()
+ * to be available.
+ *
  * @param xEventGroup The event group in which the bits are being tested.  The
  * event group must have previously been created using a call to
  * xEventGroupCreate().
@@ -743,6 +761,9 @@ EventBits_t xEventGroupSync( EventGroupHandle_t xEventGroup,
  * Returns the current value of the bits in an event group.  This function
  * cannot be used from an interrupt.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for xEventGroupGetBits()
+ * to be available.
+ *
  * @param xEventGroup The event group being queried.
  *
  * @return The event group bits at the time xEventGroupGetBits() was called.
@@ -779,6 +800,9 @@ EventBits_t xEventGroupGetBitsFromISR( EventGroupHandle_t xEventGroup ) PRIVILEG
  * xEventGroupCreate().  Tasks that are blocked on the event group will be
  * unblocked and obtain 0 as the event group's value.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for vEventGroupDelete()
+ * to be available.
+ *
  * @param xEventGroup The event group being deleted.
  */
 void vEventGroupDelete( EventGroupHandle_t xEventGroup ) PRIVILEGED_FUNCTION;
@@ -793,6 +817,9 @@ void vEventGroupDelete( EventGroupHandle_t xEventGroup ) PRIVILEGED_FUNCTION;
  * Retrieve a pointer to a statically created event groups's data structure
  * buffer. It is the same buffer that is supplied at the time of creation.
  *
+ * The configUSE_EVENT_GROUPS configuration constant must be set to 1 for xEventGroupGetStaticBuffer()
+ * to be available.
+ *
  * @param xEventGroup The event group for which to retrieve the buffer.
  *
  * @param ppxEventGroupBuffer Used to return a pointer to the event groups's