/*
 * Pin.h
 *
 * Created: 2/20/2016 11:49:05 AM
 *  Author: MQUEZADA
 *
 * Not the fastest way to access and control the
 * IO registers of the AVR but a good balance between
 * using direct port manipulations and readability
 * for those of us getting started with AVR programming.
 *
 * @copyrigt Licensed for non-commercial use under the Beerware license.
 *           If you use this code and we meet some day, you buy me a beer :).
 *           You must include this license message in your implementation of this
 *            code. Feel free to hack away at it, but give me credit for my work :).
 */ 
#include <avr/sfr_defs.h>
#ifndef PIN_H_
#define PIN_H_

#ifndef LOW
#define LOW 0x00
#endif
#ifndef HIGH
#define HIGH 0xFF
#endif

class Pin
{
   public:
      Pin(volatile uint8_t *ddr, volatile uint8_t *port, volatile uint8_t *in, uint8_t pin) :
         DDR(ddr), Port(port), Pinp(in), Nip(pin)
      {}
      
      void SetOutput() const
      {
         *DDR |= _BV(Nip);
      }
      void SetInput() const
      {
         *DDR &= ~(_BV(Nip));
      }
      void Set(uint8_t hl)
      {
         (hl != 0x00) ? *Port |= _BV(Nip) : *Port &= ~(_BV(Nip));
      }
      void Pullup(uint8_t hl)
      {
         Set(hl);
      }
      uint8_t Get()
      {
         return(bit_is_set(*Pinp, Nip) ? 0xFF : 0x00);
      }
      volatile uint8_t *DDR;
      volatile uint8_t *Port;
      volatile uint8_t *Pinp;
      uint8_t Nip;
};

#endif /* PIN_H_ */