Tone.hh

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#ifndef COSA_TONE_HH
#define COSA_TONE_HH

#include "Cosa/Types.h"

class Tone {
public:
  static const uint8_t VOLUME_MAX = 10;

  static void begin();

  static void play(uint16_t freq,
                   uint8_t volume = VOLUME_MAX / 2,
                   uint16_t duration = 0,
                   bool background = false);

  static void silent();

private:
  Tone();

  static uint32_t s_expires;
  static const uint8_t s_map[] PROGMEM;
  friend void TIMER1_COMPA_vect(void);
};
#endif