Serial.hh

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#ifndef COSA_SERIAL_HH
#define COSA_SERIAL_HH

#include "Cosa/Types.h"
#include "Cosa/IOStream.hh"

#if defined(BOARD_ATTINY)
# define UCSZ00 1
# define UCSZ01 2
# define USBS0 3
# define UPM00 4
# define UPM01 5
#endif

class Serial : public IOStream::Device {
public:
  static const uint32_t DEFAULT_BAUDRATE = 9600L;

  enum {
    DATA5 = 0,
    DATA6 = _BV(UCSZ00),
    DATA7 = _BV(UCSZ01),
    DATA8 = _BV(UCSZ01) | _BV(UCSZ00),
    NO_PARITY = 0,
    EVEN_PARITY = _BV(UPM01),
    ODD_PARITY = _BV(UPM01) | _BV(UPM00),
    STOP1 = 0,
    STOP2 = _BV(USBS0),
  } __attribute__((packed));

  static const uint8_t DEFAULT_FORMAT = DATA8 + NO_PARITY + STOP2;

  Serial() : IOStream::Device() {}

  virtual bool begin(uint32_t baudrate = DEFAULT_BAUDRATE,
                     uint8_t format = DEFAULT_FORMAT) = 0;

  virtual bool end()
  {
    return (true);
  }

  virtual void powerup() {}

  virtual void powerdown() {}
};

#endif