done with config clean up

Author: hathach

libraries/Bluefruit52Lib/src/BLEGap.cpp

@@ -267,7 +267,7 @@ void BLEGap::_eventHandler(ble_evt_t* evt)
 
     case BLE_GATTS_EVT_EXCHANGE_MTU_REQUEST:
     {
-      peer->att_mtu = minof(evt->evt.gatts_evt.params.exchange_mtu_request.client_rx_mtu, BLEGATT_ATT_MTU_MAX);
+      peer->att_mtu = minof(evt->evt.gatts_evt.params.exchange_mtu_request.client_rx_mtu, Bluefruit.getMaxMtu());
       VERIFY_STATUS( sd_ble_gatts_exchange_mtu_reply(conn_handle, peer->att_mtu), );
 
       LOG_LV1("GAP", "ATT MTU is changed to %d", peer->att_mtu);

libraries/Bluefruit52Lib/src/bluefruit.h

@@ -44,8 +44,6 @@
 
 /* Note changing these parameters will affect APP_RAM_BASE
  * --> need to update RAM region in linker file
- *
- * default value are
  * - BLEGATT_ATT_MTU_MAX from 23 (default) to 247
  */
 

libraries/Bluefruit52Lib/src/services/BLEUart.cpp

@@ -160,7 +160,7 @@ void BLEUart::bufferTXD(uint8_t enable)
     if ( _tx_fifo == NULL )
     {
       _tx_fifo = new Adafruit_FIFO(1);
-      _tx_fifo->begin(BLEGATT_ATT_MTU_MAX);
+      _tx_fifo->begin( Bluefruit.getMaxMtu() );
     }
   }else
   {
@@ -182,7 +182,7 @@ err_t BLEUart::begin(void)
   _txd.setProperties(CHR_PROPS_NOTIFY);
   // TODO enable encryption when bonding is enabled
   _txd.setPermission(SECMODE_OPEN, SECMODE_NO_ACCESS);
-  _txd.setMaxLen(BLEGATT_ATT_MTU_MAX);
+  _txd.setMaxLen( Bluefruit.getMaxMtu() );
   _txd.setUserDescriptor("TXD");
   VERIFY_STATUS( _txd.begin() );
 
@@ -192,7 +192,7 @@ err_t BLEUart::begin(void)
 
   // TODO enable encryption when bonding is enabled
   _rxd.setPermission(SECMODE_NO_ACCESS, SECMODE_OPEN);
-  _rxd.setMaxLen(BLEGATT_ATT_MTU_MAX);
+  _rxd.setMaxLen( Bluefruit.getMaxMtu() );
   _rxd.setUserDescriptor("RXD");
   VERIFY_STATUS(_rxd.begin());