Port to namespaced ArduinoAPI

Author: facchinm

cores/arduino/USB/USBAPI.h

@@ -29,10 +29,15 @@
 
 #if defined __cplusplus
 
+#include "Arduino.h"
 #include "api/Stream.h"
 #include "api/RingBuffer.h"
 #include "api/USBAPI.h"
 
+#if ARDUINO_API_VERSION > 10000
+using namespace arduino;
+#endif
+
 //================================================================================
 // USB
 

cores/arduino/Uart.h

@@ -26,7 +26,7 @@
 
 #define SERIAL_BUFFER_SIZE  64
 
-class Uart : public HardwareSerial
+class Uart : public arduino::HardwareSerial
 {
   public:
     Uart(SERCOM *_s, uint8_t _pinRX, uint8_t _pinTX, SercomRXPad _padRX, SercomUartTXPad _padTX);
@@ -48,8 +48,8 @@ class Uart : public HardwareSerial
 
   private:
     SERCOM *sercom;
-    RingBuffer rxBuffer;
-    RingBuffer txBuffer;
+    arduino::RingBuffer rxBuffer;
+    arduino::RingBuffer txBuffer;
 
     uint8_t uc_pinRX;
     uint8_t uc_pinTX;