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#ifndef BUZZER_H_
#define BUZZER_H_
#include "util.h"
#include <stdint.h>
typedef uint8_t note_t;
enum note_t_fields {
NOTE_ID_MASK = 0x0F,
NOTE_ID_SHIFT = 0,
NOTE_VAL_MASK = 0x70,
NOTE_VAL_SHIFT = 4,
};
enum note_ids {
NOTEID_PAUSE = 0,
NOTEID_C4,
NOTEID_D4,
NOTEID_E4,
NOTEID_F4,
NOTEID_G4,
NOTEID_A4,
NOTEID_B4,
NOTEID_C5,
NOTEID_D5,
NOTEID_E5,
NOTEID_F5,
NOTEID_G5,
NOTEID_A5,
NOTEID_B5,
NOTEID_FLAGS,
};
enum note_values {
NOTEVAL_1_1 = 0, /* 1/1 */
NOTEVAL_1_2, /* 1/2 */
NOTEVAL_1_4, /* 1/4 */
NOTEVAL_1_8, /* 1/8 */
NOTEVAL_1_16, /* 1/16 */
NOTEVAL_1_32, /* 1/32 */
NOTEVAL_1_64, /* 1/64 */
NOTEVAL_UNUSED0,
};
enum note_flags_values {
NOTEVAL_SHARP = 0,
NOTEVAL_DOT,
NOTEVAL_OCTAVE_SH_UP,
NOTEVAL_OCTAVE_SH_DOWN,
NOTEVAL_UNUSED1,
NOTEVAL_UNUSED2,
NOTEVAL_UNUSED3,
NOTEVAL_UNUSED4,
};
#define note(id, val) ( \
((NOTEID_##id << NOTE_ID_SHIFT) & NOTE_ID_MASK) | \
((NOTEVAL_##val << NOTE_VAL_SHIFT) & NOTE_VAL_MASK) )
#define n_sharp note(FLAGS, SHARP)
#define n_dot note(FLAGS, DOT)
#define n_octave_up note(FLAGS, OCTAVE_SH_UP)
#define n_octave_down note(FLAGS, OCTAVE_SH_DOWN)
#define n_pause(val) note(PAUSE, val)
#define invalid_note 0xFF
#define note_array_end invalid_note
extern const note_t PROGMEM buzzer_elise[];
void buzzer_init(uint16_t basespeed_note_1_1_ms);
void buzzer_play(const note_t PROGPTR *notes);
void buzzer_tune_note(note_t n);
#endif /* BUZZER_H_ */
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