change(ble): Update gatt api with service changed handling from upstream

lib/sdk/Libraries/BTLE/stack/ble-profiles/sources/profiles/gatt/gatt_api.h

@@ -74,6 +74,31 @@ void GattDiscover(dmConnId_t connId, uint16_t *pHdlList);
 /*************************************************************************************************/
 uint8_t GattValueUpdate(uint16_t *pHdlList, attEvt_t *pMsg);
 
+/*************************************************************************************************/
+/*!
+ *  \brief  Set Index of the Service Changed CCCD in the ATT Server.
+ *
+ *  \param  idx  Index of the Service Changed CCCD in the ATT Server.
+ *
+ *  \return None.
+ */
+/*************************************************************************************************/
+void GattSetSvcChangedIdx(uint8_t idx);
+
+/*************************************************************************************************/
+/*!
+ *  \brief  Send Service Change Indications to the specified connections if they are configured to
+ *          do so.
+ *
+ *  \param  connId    DM Connection identifier or \ref DM_CONN_ID_NONE to send to all connections.
+ *  \param  start     start handle for service changed value.
+ *  \param  end       end handle for service changed value.
+ *
+ *  \return None.
+ */
+/*************************************************************************************************/
+void GattSendServiceChangedInd(dmConnId_t connId, uint16_t start, uint16_t end);
+
 /*! \} */    /* GATT_PROFILE */
 
 #ifdef __cplusplus

lib/sdk/Libraries/BTLE/stack/ble-profiles/sources/profiles/gatt/gatt_main.c

@@ -19,13 +19,30 @@
 
 #include "wsf_types.h"
 #include "wsf_assert.h"
+#include "util/bstream.h"
 #include "app_api.h"
 #include "gatt/gatt_api.h"
+#include "svc_core.h"
+#include "att_api.h"
+
+/**************************************************************************************************
+Data Types
+**************************************************************************************************/
+
+/* Control block. */
+typedef struct
+{
+  bool_t  svcChangedCccdIdxSet; /* Check if Service Changed CCCD index has been initialized. */
+  uint8_t svcChangedCccdIdx;    /* Stored index of Service Changed CCCD. */
+} gattServCb_t;
 
 /**************************************************************************************************
   Local Variables
 **************************************************************************************************/
 
+/* Control block. */
+gattServCb_t gattServCb;
+
 /*! GATT service characteristics for discovery */
 
 /*! Service changed */
@@ -46,7 +63,7 @@ static const attcDiscChar_t gattScCcc =
 static const attcDiscChar_t *gattDiscCharList[] =
 {
   &gattSc,                    /* Service changed */
-  &gattScCcc                  /* Service changed client characteristic configuration descriptor */
+  &gattScCcc,                 /* Service changed client characteristic configuration descriptor */
 };
 
 /* sanity check:  make sure handle list length matches characteristic list length */
@@ -101,3 +118,68 @@ uint8_t GattValueUpdate(uint16_t *pHdlList, attEvt_t *pMsg)
 
   return status;
 }
+
+/*************************************************************************************************/
+/*!
+ *  \brief  Set Index of the Service Changed CCCD in the ATT Server.
+ *
+ *  \param  idx  Index of the Service Changed CCCD in the ATT Server.
+ *
+ *  \return None.
+ */
+/*************************************************************************************************/
+void GattSetSvcChangedIdx(uint8_t idx)
+{
+  gattServCb.svcChangedCccdIdxSet = TRUE;
+  gattServCb.svcChangedCccdIdx = idx;
+}
+
+/*************************************************************************************************/
+/*!
+ *  \brief  Send Service Change Indications to the specified connections if they are configured to
+ *          do so.
+ *
+ *  \param  connId    DM Connection identifier or \ref DM_CONN_ID_NONE to send to all connections.
+ *  \param  start     start handle for service changed value.
+ *  \param  end       end handle for service changed value.
+ *
+ *  \return None.
+ */
+/*************************************************************************************************/
+void GattSendServiceChangedInd(dmConnId_t connId, uint16_t start, uint16_t end)
+{
+  uint8_t svcChangedValues[4];
+  uint8_t *p;
+
+  if (!gattServCb.svcChangedCccdIdxSet)
+  {
+    return;
+  }
+
+  p = svcChangedValues;
+  UINT16_TO_BSTREAM(p, start);
+  UINT16_TO_BSTREAM(p, end);
+
+  /* If connection is not specified */
+  if (connId == DM_CONN_ID_NONE)
+  {
+    /* Send to all. */
+    for (connId = 1; connId <= DM_CONN_MAX; connId++)
+    {
+      if (AttsCccEnabled(connId, gattServCb.svcChangedCccdIdx))
+      {
+        AttsHandleValueInd(connId, GATT_SC_HDL, sizeof(svcChangedValues), svcChangedValues);
+      }
+    }
+  }
+  else
+  {
+    /* Send to only this one. */
+    if (AttsCccEnabled(connId, gattServCb.svcChangedCccdIdx))
+    {
+      AttsHandleValueInd(connId, GATT_SC_HDL, sizeof(svcChangedValues), svcChangedValues);
+    }
+  }
+}
+
+