Updates to BLE 2.1.11 / ble-nrf51822 2.2.3

Minor amends:
  - bleDisconnectionCallback signature change
  - bleSetAdvertisingInterval now takes milliseconds as a parameter
  - event based invocation of DFU bootloader

inc/MicroBit.h

@@ -302,7 +302,7 @@ extern MicroBit uBit;
 // BLE callback when an active GATT session with another device is terminated.
 // Used to reset state and restart advertising ourselves.
 //
-void bleDisconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason);
+void bleDisconnectionCallback(const Gap::DisconnectionCallbackParams_t *reason);
 
 // Entry point for application programs. Called after the super-main function
 // has initialized the device and runtime environment.

source/MicroBit.cpp

@@ -31,9 +31,8 @@ microbit_reset()
 /**
   * Callback when a BLE GATT disconnect occurs.
   */
-void bleDisconnectionCallback(Gap::Handle_t handle, Gap::DisconnectionReason_t reason)
+void bleDisconnectionCallback(const Gap::DisconnectionCallbackParams_t *reason)
 {
-    (void) handle; /* -Wunused-param */
     (void) reason; /* -Wunused-param */
 
     uBit.ble->startAdvertising(); 
@@ -167,7 +166,7 @@ void MicroBit::init()
     ble->accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
     ble->accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)MICROBIT_BLE_DEVICE_NAME, sizeof(MICROBIT_BLE_DEVICE_NAME));
     ble->setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
-    ble->setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(200));
+    ble->setAdvertisingInterval(200);
     ble->startAdvertising();  
 #endif    
 

source/MicroBitSuperMain.cpp

@@ -60,7 +60,7 @@ int main()
                 uBit.ble->accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
                 uBit.ble->accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)MICROBIT_BLE_DEVICE_NAME, sizeof(MICROBIT_BLE_DEVICE_NAME));
                 uBit.ble->setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
-                uBit.ble->setAdvertisingInterval(Gap::MSEC_TO_ADVERTISEMENT_DURATION_UNITS(200));
+                uBit.ble->setAdvertisingInterval(200);
                 uBit.ble->startAdvertising();  
             }
 

source/ble-services/MicroBitDFUService.cpp

@@ -17,6 +17,31 @@
 #include "MicroBit.h"
 #include "ble/UUID.h"
 
+#if !defined(__arm)
+#pragma GCC diagnostic ignored "-Wunused-function"
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
+
+/* 
+ * The underlying Nordic libraries that support BLE do not compile cleanly with the stringent GCC settings we employ
+ * If we're compiling under GCC, then we suppress any warnings generated from this code (but not the rest of the DAL)
+ * The ARM cc compiler is more tolerant. We don't test __GNUC__ here to detect GCC as ARMCC also typically sets this
+ * as a compatability option, but does not support the options used...
+ */
+extern "C" {
+#include "dfu_app_handler.h"
+}
+
+/* 
+ * Return to our predefined compiler settings.
+ */
+#if !defined(__arm)
+#pragma GCC diagnostic pop
+#endif
+
+
+
 /**
   * Constructor. 
   * Create a representation of a MicroBit device.
@@ -121,7 +146,17 @@ void MicroBitDFUService::onDataWritten(const GattWriteCallbackParams *params)
 #if CONFIG_ENABLED(MICROBIT_DBG)
                     uBit.serial.printf("  ACTIVATING BOOTLOADER.\n");
 #endif
-                    bootloader_start();    
+
+
+			// Call bootloader_start implicitly trough a event handler call
+			// it is a work around for bootloader_start not being public in sdk 8.1
+			ble_dfu_t p_dfu;
+			ble_dfu_evt_t p_evt;
+
+			p_dfu.conn_handle = params->connHandle;
+			p_evt.ble_dfu_evt_type = BLE_DFU_START;
+
+			dfu_app_on_dfu_evt(&p_dfu, &p_evt);
                 }   
             
                 break;