Remove UART habndling Copy/Paste code

STMUART.h

@@ -0,0 +1,91 @@
+/*
+ *   Copyright (c) 2020 by Jonathan Naylor G4KLX
+ *   Copyright (c) 2020 by Geoffrey Merck F4FXL - KC3FRA   
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#if defined(STM32F4XX) || defined(STM32F7XX)
+#if !defined(STMUART_H)
+#define STMUART_H
+
+#if defined(STM32F4XX)
+#include "stm32f4xx.h"
+#elif defined(STM32F7XX)
+#include "stm32f7xx.h"
+#endif
+
+const uint16_t BUFFER_SIZE = 2048U; //needs to be a power of 2 !
+const uint16_t BUFFER_MASK = BUFFER_SIZE - 1;
+
+class CSTMUARTFIFO {
+public:
+  CSTMUARTFIFO() :
+  m_head(0U),
+  m_tail(0U)
+  {
+  }
+
+  void put(uint8_t data)
+  {
+    m_buffer[BUFFER_MASK & (m_head++)] = data;
+  }
+
+  uint8_t get()
+  {
+    return m_buffer[BUFFER_MASK & (m_tail++)];
+  }
+
+  void reset()
+  {
+    m_tail = 0U;
+    m_head = 0U;
+  }
+
+  bool isEmpty()
+  {
+    return m_tail == m_head;
+  }
+
+  bool isFull()
+  {
+    return ((m_head + 1U) & BUFFER_MASK) == (m_tail & BUFFER_MASK);
+  }
+
+private:
+  volatile uint8_t  m_buffer[BUFFER_SIZE];
+  volatile uint16_t m_head;
+  volatile uint16_t m_tail;
+};
+
+class CSTMUART {
+public:
+  CSTMUART();
+  void init(USART_TypeDef* usart);
+  void write(const uint8_t * data, uint16_t length);
+  uint8_t read();
+  void handleIRQ();
+  void flush();
+  uint16_t available();
+  uint16_t availableForWrite();
+
+private:
+  USART_TypeDef * m_usart;
+  CSTMUARTFIFO    m_rxFifo;
+  CSTMUARTFIFO    m_txFifo;
+};
+
+#endif
+#endif