Replace Serial with null

Allows sketches using Serial to compile but discards all data

1 files changed, 20 insertions, 26 deletions

diff --git a/cores/arduino/USBAPI.h b/cores/arduino/USBAPI.h
index 479ced9..06dd737 100644
--- a/cores/arduino/USBAPI.h
+++ b/cores/arduino/USBAPI.h
@@ -87,27 +87,21 @@ struct ring_buffer;
 
 class Serial_ : public Stream
 {
-private:
-	int peek_buffer;
 public:
-	Serial_() { peek_buffer = -1; };
-	void begin(unsigned long);
-	void begin(unsigned long, uint8_t);
-	void end(void);
-
-	virtual int available(void);
-	virtual int peek(void);
-	virtual int read(void);
-	virtual int availableForWrite(void);
-	virtual void flush(void);
-	virtual size_t write(uint8_t);
-	virtual size_t write(const uint8_t*, size_t);
+	Serial_() {};
+	void begin(unsigned long) {}
+	void begin(unsigned long, uint8_t) {}
+	void end(void) {}
+
+	virtual int available(void) { return -1; }
+	virtual int peek(void) { return -1; }
+	virtual int read(void) { return -1; }
+	virtual int availableForWrite(void) { return 0; }
+	virtual void flush(void) {}
+	virtual size_t write(uint8_t) { return 1; }
+	virtual size_t write(const uint8_t*, size_t n) { return n; }
 	using Print::write; // pull in write(str) and write(buf, size) from Print
-	operator bool();
-
-	volatile uint8_t _rx_buffer_head;
-	volatile uint8_t _rx_buffer_tail;
-	unsigned char _rx_buffer[SERIAL_BUFFER_SIZE];
+	operator bool() { return true; }
 
 	// This method allows processing "SEND_BREAK" requests sent by
 	// the USB host. Those requests indicate that the host wants to
@@ -124,17 +118,17 @@ public:
 	// first request is lost.
 	// Note that the value returned is a long, so it can return
 	// 0-0xffff as well as -1.
-	int32_t readBreak();
+	int32_t readBreak() { return -1; };
 
 	// These return the settings specified by the USB host for the
 	// serial port. These aren't really used, but are offered here
 	// in case a sketch wants to act on these settings.
-	uint32_t baud();
-	uint8_t stopbits();
-	uint8_t paritytype();
-	uint8_t numbits();
-	bool dtr();
-	bool rts();
+	uint32_t baud() { return 0; }
+	uint8_t stopbits() { return 1; }
+	uint8_t paritytype() { return 0; }
+	uint8_t numbits() { return 8; }
+	bool dtr() { return true; }
+	bool rts() { return true; }
 	enum {
 		ONE_STOP_BIT = 0,
 		ONE_AND_HALF_STOP_BIT = 1,