From 2307486942f246aca947d770849b5d05822d7d17 Mon Sep 17 00:00:00 2001
From: David Madison <dmadison@users.noreply.github.com>
Date: Fri, 15 Feb 2019 14:27:49 -0500
Subject: Replace Serial with null

Allows sketches using Serial to compile but discards all data
---
 cores/arduino/CDC.cpp | 134 --------------------------------------------------
 1 file changed, 134 deletions(-)

(limited to 'cores/arduino/CDC.cpp')

diff --git a/cores/arduino/CDC.cpp b/cores/arduino/CDC.cpp
index 142f8f6..9fea948 100644
--- a/cores/arduino/CDC.cpp
+++ b/cores/arduino/CDC.cpp
@@ -163,140 +163,6 @@ bool CDC_Setup(USBSetup& setup)
 	return false;
 }
 
-
-void Serial_::begin(unsigned long /* baud_count */)
-{
-	peek_buffer = -1;
-}
-
-void Serial_::begin(unsigned long /* baud_count */, byte /* config */)
-{
-	peek_buffer = -1;
-}
-
-void Serial_::end(void)
-{
-}
-
-int Serial_::available(void)
-{
-	if (peek_buffer >= 0) {
-		return 1 + USB_Available(CDC_RX);
-	}
-	return USB_Available(CDC_RX);
-}
-
-int Serial_::peek(void)
-{
-	if (peek_buffer < 0)
-		peek_buffer = USB_Recv(CDC_RX);
-	return peek_buffer;
-}
-
-int Serial_::read(void)
-{
-	if (peek_buffer >= 0) {
-		int c = peek_buffer;
-		peek_buffer = -1;
-		return c;
-	}
-	return USB_Recv(CDC_RX);
-}
-
-int Serial_::availableForWrite(void)
-{
-	return USB_SendSpace(CDC_TX);
-}
-
-void Serial_::flush(void)
-{
-	USB_Flush(CDC_TX);
-}
-
-size_t Serial_::write(uint8_t c)
-{
-	return write(&c, 1);
-}
-
-size_t Serial_::write(const uint8_t *buffer, size_t size)
-{
-	/* only try to send bytes if the high-level CDC connection itself 
-	 is open (not just the pipe) - the OS should set lineState when the port
-	 is opened and clear lineState when the port is closed.
-	 bytes sent before the user opens the connection or after
-	 the connection is closed are lost - just like with a UART. */
-	
-	// TODO - ZE - check behavior on different OSes and test what happens if an
-	// open connection isn't broken cleanly (cable is yanked out, host dies
-	// or locks up, or host virtual serial port hangs)
-	if (_usbLineInfo.lineState > 0)	{
-		int r = USB_Send(CDC_TX,buffer,size);
-		if (r > 0) {
-			return r;
-		} else {
-			setWriteError();
-			return 0;
-		}
-	}
-	setWriteError();
-	return 0;
-}
-
-// This operator is a convenient way for a sketch to check whether the
-// port has actually been configured and opened by the host (as opposed
-// to just being connected to the host).  It can be used, for example, in 
-// setup() before printing to ensure that an application on the host is
-// actually ready to receive and display the data.
-// We add a short delay before returning to fix a bug observed by Federico
-// where the port is configured (lineState != 0) but not quite opened.
-Serial_::operator bool() {
-	bool result = false;
-	if (_usbLineInfo.lineState > 0) 
-		result = true;
-	delay(10);
-	return result;
-}
-
-unsigned long Serial_::baud() {
-	// Disable interrupts while reading a multi-byte value
-	uint32_t baudrate;
-	ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
-		baudrate =  _usbLineInfo.dwDTERate;
-	}
-	return baudrate;
-}
-
-uint8_t Serial_::stopbits() {
-	return _usbLineInfo.bCharFormat;
-}
-
-uint8_t Serial_::paritytype() {
-	return _usbLineInfo.bParityType;
-}
-
-uint8_t Serial_::numbits() {
-	return _usbLineInfo.bDataBits;
-}
-
-bool Serial_::dtr() {
-	return _usbLineInfo.lineState & 0x1;
-}
-
-bool Serial_::rts() {
-	return _usbLineInfo.lineState & 0x2;
-}
-
-int32_t Serial_::readBreak() {
-	int32_t ret;
-	// Disable IRQs while reading and clearing breakValue to make
-	// sure we don't overwrite a value just set by the ISR.
-	ATOMIC_BLOCK(ATOMIC_RESTORESTATE) {
-		ret = breakValue;
-		breakValue = -1;
-	}
-	return ret;
-}
-
 Serial_ Serial;
 
 #endif /* if defined(USBCON) */
-- 
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