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/*
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
Modified 14 August 2012 by Alarus
*/
#ifndef HardwareSerial_h
#define HardwareSerial_h
#include <inttypes.h>
#include "Stream.h"
struct ring_buffer;
class HardwareSerial : public Stream
{
private:
ring_buffer *_rx_buffer;
ring_buffer *_tx_buffer;
volatile uint8_t *_ubrrh;
volatile uint8_t *_ubrrl;
volatile uint8_t *_ucsra;
volatile uint8_t *_ucsrb;
volatile uint8_t *_ucsrc;
volatile uint8_t *_udr;
uint8_t _rxen;
uint8_t _txen;
uint8_t _rxcie;
uint8_t _udrie;
uint8_t _u2x;
bool transmitting;
public:
HardwareSerial(ring_buffer *rx_buffer, ring_buffer *tx_buffer,
volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
volatile uint8_t *ucsrc, volatile uint8_t *udr,
uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udrie, uint8_t u2x);
void begin(unsigned long);
void begin(unsigned long, byte);
void end();
virtual int available(void);
virtual int peek(void);
virtual int read(void);
virtual void flush(void);
virtual size_t write(uint8_t);
inline size_t write(unsigned long n) { return write((uint8_t)n); }
inline size_t write(long n) { return write((uint8_t)n); }
inline size_t write(unsigned int n) { return write((uint8_t)n); }
inline size_t write(int n) { return write((uint8_t)n); }
using Print::write; // pull in write(str) and write(buf, size) from Print
operator bool();
};
// Define config for Serial.begin(baud, config);
#define SERIAL_5N1 0x80
#define SERIAL_6N1 0x82
#define SERIAL_7N1 0x84
#define SERIAL_8N1 0x86
#define SERIAL_5N2 0x88
#define SERIAL_6N2 0x8A
#define SERIAL_7N2 0x8C
#define SERIAL_8N2 0x8E
#define SERIAL_5E1 0xA0
#define SERIAL_6E1 0xA2
#define SERIAL_7E1 0xA4
#define SERIAL_8E1 0xA6
#define SERIAL_5E2 0xA8
#define SERIAL_6E2 0xAA
#define SERIAL_7E2 0xAC
#define SERIAL_8E2 0xAE
#define SERIAL_5O1 0xB0
#define SERIAL_6O1 0xB2
#define SERIAL_7O1 0xB4
#define SERIAL_8O1 0xB6
#define SERIAL_5O2 0xB8
#define SERIAL_6O2 0xBA
#define SERIAL_7O2 0xBC
#define SERIAL_8O2 0xBE
#if defined(UBRRH) || defined(UBRR0H)
extern HardwareSerial Serial;
#elif defined(USBCON)
#include "USBAPI.h"
// extern HardwareSerial Serial_;
#endif
#if defined(UBRR1H)
extern HardwareSerial Serial1;
#endif
#if defined(UBRR2H)
extern HardwareSerial Serial2;
#endif
#if defined(UBRR3H)
extern HardwareSerial Serial3;
#endif
/*
* on ATmega8, the uart and its bits are not numbered, so there is no "TXC0"
* definition. It is slightly cleaner to define this here instead of having
* conditional code in the cpp module.
*/
#if !defined(TXC0)
#if defined(TXC)
#define TXC0 TXC
#elif defined(TXC1)
// Some devices have uart1 but no uart0
#define TXC0 TXC1
#else
#error TXC0 not definable in HardwareSerial.h
#endif
#endif
extern void serialEventRun(void) __attribute__((weak));
#endif
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