151 lines
3.8 KiB
C++
151 lines
3.8 KiB
C++
/*
|
|
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"
|
|
|
|
|
|
#define DEC 10
|
|
#define HEX 16
|
|
#define OCT 8
|
|
#define BIN 2
|
|
#define BYTE 0
|
|
|
|
|
|
|
|
// 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 defined(UBRRH) || defined(UBRR0H)
|
|
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 (!((UCSR0A) & (1 << UDRE0)))
|
|
;
|
|
|
|
UDR0 = c;
|
|
}
|
|
|
|
|
|
FORCE_INLINE void checkRx(void)
|
|
{
|
|
if((UCSR0A & (1<<RXC0)) != 0) {
|
|
unsigned char c = UDR0;
|
|
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);
|
|
};
|
|
|
|
#if defined(UBRRH) || defined(UBRR0H)
|
|
extern MarlinSerial MSerial;
|
|
#endif
|
|
|
|
#endif
|