init

2019-02-21 21:51:04 +01:00
commit 5775046b39
72 changed files with 36472 additions and 0 deletions
--- a/MarlinSerial.h
+++ b/MarlinSerial.h
@@ -0,0 +1,189 @@
+/*
+  HardwareSerial.h - Hardware serial library for Wiring
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library 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
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+  Modified 28 September 2010 by Mark Sproul
+*/
+
+#ifndef MarlinSerial_h
+#define MarlinSerial_h
+#include "Marlin.h"
+
+#if !defined(SERIAL_PORT) 
+#define SERIAL_PORT 0
+#endif
+
+// The presence of the UBRRH register is used to detect a UART.
+#define UART_PRESENT(port) ((port == 0 && (defined(UBRRH) || defined(UBRR0H))) || \
+						(port == 1 && defined(UBRR1H)) || (port == 2 && defined(UBRR2H)) || \
+						(port == 3 && defined(UBRR3H)))				
+						
+// These are macros to build serial port register names for the selected SERIAL_PORT (C preprocessor
+// requires two levels of indirection to expand macro values properly)
+#define SERIAL_REGNAME(registerbase,number,suffix) SERIAL_REGNAME_INTERNAL(registerbase,number,suffix)
+#if SERIAL_PORT == 0 && (!defined(UBRR0H) || !defined(UDR0)) // use un-numbered registers if necessary
+#define SERIAL_REGNAME_INTERNAL(registerbase,number,suffix) registerbase##suffix
+#else
+#define SERIAL_REGNAME_INTERNAL(registerbase,number,suffix) registerbase##number##suffix
+#endif
+
+// Registers used by MarlinSerial class (these are expanded 
+// depending on selected serial port
+#define M_UCSRxA SERIAL_REGNAME(UCSR,SERIAL_PORT,A) // defines M_UCSRxA to be UCSRnA where n is the serial port number
+#define M_UCSRxB SERIAL_REGNAME(UCSR,SERIAL_PORT,B) 
+#define M_RXENx SERIAL_REGNAME(RXEN,SERIAL_PORT,)    
+#define M_TXENx SERIAL_REGNAME(TXEN,SERIAL_PORT,)    
+#define M_RXCIEx SERIAL_REGNAME(RXCIE,SERIAL_PORT,)    
+#define M_UDREx SERIAL_REGNAME(UDRE,SERIAL_PORT,)    
+#define M_UDRx SERIAL_REGNAME(UDR,SERIAL_PORT,)  
+#define M_UBRRxH SERIAL_REGNAME(UBRR,SERIAL_PORT,H)
+#define M_UBRRxL SERIAL_REGNAME(UBRR,SERIAL_PORT,L)
+#define M_RXCx SERIAL_REGNAME(RXC,SERIAL_PORT,)
+#define M_USARTx_RX_vect SERIAL_REGNAME(USART,SERIAL_PORT,_RX_vect)
+#define M_U2Xx SERIAL_REGNAME(U2X,SERIAL_PORT,)
+
+
+
+#define DEC 10
+#define HEX 16
+#define OCT 8
+#define BIN 2
+#define BYTE 0
+
+
+#ifndef AT90USB
+// Define constants and variables for buffering incoming serial data.  We're
+// using a ring buffer (I think), in which rx_buffer_head is the index of the
+// location to which to write the next incoming character and rx_buffer_tail
+// is the index of the location from which to read.
+#define RX_BUFFER_SIZE 128
+
+
+struct ring_buffer
+{
+  unsigned char buffer[RX_BUFFER_SIZE];
+  int head;
+  int tail;
+};
+
+#if UART_PRESENT(SERIAL_PORT)
+  extern ring_buffer rx_buffer;
+#endif
+
+class MarlinSerial //: public Stream
+{
+
+  public:
+    MarlinSerial();
+    void begin(long);
+    void end();
+    int peek(void);
+    int read(void);
+    void flush(void);
+    
+    FORCE_INLINE int available(void)
+    {
+      return (unsigned int)(RX_BUFFER_SIZE + rx_buffer.head - rx_buffer.tail) % RX_BUFFER_SIZE;
+    }
+    
+    FORCE_INLINE void write(uint8_t c)
+    {
+      while (!((M_UCSRxA) & (1 << M_UDREx)))
+        ;
+
+      M_UDRx = c;
+    }
+    
+    
+    FORCE_INLINE void checkRx(void)
+    {
+      if((M_UCSRxA & (1<<M_RXCx)) != 0) {
+        unsigned char c  =  M_UDRx;
+        int i = (unsigned int)(rx_buffer.head + 1) % RX_BUFFER_SIZE;
+
+        // if we should be storing the received character into the location
+        // just before the tail (meaning that the head would advance to the
+        // current location of the tail), we're about to overflow the buffer
+        // and so we don't write the character or advance the head.
+        if (i != rx_buffer.tail) {
+          rx_buffer.buffer[rx_buffer.head] = c;
+          rx_buffer.head = i;
+        }
+      }
+    }
+    
+    
+    private:
+    void printNumber(unsigned long, uint8_t);
+    void printFloat(double, uint8_t);
+    
+    
+  public:
+    
+    FORCE_INLINE void write(const char *str)
+    {
+      while (*str)
+        write(*str++);
+    }
+
+
+    FORCE_INLINE void write(const uint8_t *buffer, size_t size)
+    {
+      while (size--)
+        write(*buffer++);
+    }
+
+    FORCE_INLINE void print(const String &s)
+    {
+      for (int i = 0; i < (int)s.length(); i++) {
+        write(s[i]);
+      }
+    }
+    
+    FORCE_INLINE void print(const char *str)
+    {
+      write(str);
+    }
+    void print(char, int = BYTE);
+    void print(unsigned char, int = BYTE);
+    void print(int, int = DEC);
+    void print(unsigned int, int = DEC);
+    void print(long, int = DEC);
+    void print(unsigned long, int = DEC);
+    void print(double, int = 2);
+
+    void println(const String &s);
+    void println(const char[]);
+    void println(char, int = BYTE);
+    void println(unsigned char, int = BYTE);
+    void println(int, int = DEC);
+    void println(unsigned int, int = DEC);
+    void println(long, int = DEC);
+    void println(unsigned long, int = DEC);
+    void println(double, int = 2);
+    void println(void);
+};
+
+extern MarlinSerial MSerial;
+#endif // !AT90USB
+
+// Use the UART for BT in AT90USB configurations
+#if defined(AT90USB) && defined (BTENABLED)
+   extern HardwareSerial bt;
+#endif
+
+#endif