transmiter/firmware/usart.h

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/*
Copyright (c) 2010 Tymon Tobolski
 
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
 
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

#ifndef _USART_H_
#define _USART_H_

#include "buffer.h"

#ifndef USART_BAUD
#define USART_BAUD 9600L
#endif

class Usart {
public:
        
        void push(char c);
        
        unsigned char read();
        
        bool empty();
        
        
        char * readline();
        
        Usart & operator<<(const unsigned char c);
        
        Usart & operator<<(const char c);
        
        Usart & operator<<(char* string);
        
        Usart & operator<<(const int number);
        
        Usart & operator<<(const long number);
        
        Usart & operator>>(unsigned char &c);
        
        Usart & operator>>(int &c);
        
        virtual void sendByte(unsigned char byte){};
        
private:
        Buffer buf; 
};

#if defined(__AVR_ATmega128__)

#define USART0(u) Usart0 u; ISR(USART0_RX_vect){ int c; c = UDR0; u.push(c); }

#define USART1(u) Usart1 u; ISR(USART1_RX_vect){ int c; c = UDR1; u.push(c); }

class Usart0: public Usart {
public:
        Usart0();
        void sendByte(unsigned char byte);
};

class Usart1: public Usart {
public:
        Usart1();
        void sendByte(unsigned char byte);
};

#elif defined(__AVR_ATmega32__)

#define USART32(u) Usart32 u; ISR(USART_RXC_vect){ int c; c = UDR; u.push(c); }

class Usart32: public Usart {
public:
        Usart32();
        void sendByte(unsigned char byte);
};

#endif

#endif