154 lines
3.8 KiB
C
154 lines
3.8 KiB
C
#include <stdint.h>
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#include <stdbool.h>
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#include <avr/io.h>
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#include <util/delay.h>
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#include "musical_notes.h"
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#include "song_list.h"
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#ifndef AUDIO_H
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#define AUDIO_H
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typedef union {
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uint8_t raw;
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struct {
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bool enable :1;
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uint8_t level :7;
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};
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} audio_config_t;
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void audio_toggle(void);
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void audio_on(void);
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void audio_off(void);
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void play_sample(uint8_t * s, uint16_t l, bool r);
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void play_note(double freq, int vol);
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void stop_note(double freq);
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void stop_all_notes(void);
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void init_notes(void);
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void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest);
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void set_timbre(float timbre);
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void set_tempo(float tempo);
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void increase_tempo(uint8_t tempo_change);
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void decrease_tempo(uint8_t tempo_change);
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#define SCALE (int []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
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0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
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0 + (12*2), 2 + (12*2), 4 + (12*2), 5 + (12*2), 7 + (12*2), 9 + (12*2), 11 + (12*2), \
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0 + (12*3), 2 + (12*3), 4 + (12*3), 5 + (12*3), 7 + (12*3), 9 + (12*3), 11 + (12*3), \
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0 + (12*4), 2 + (12*4), 4 + (12*4), 5 + (12*4), 7 + (12*4), 9 + (12*4), 11 + (12*4), }
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// These macros are used to allow play_notes to play an array of indeterminate
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// length. This works around the limitation of C's sizeof operation on pointers.
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// The global float array for the song must be used here.
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#define NOTE_ARRAY_SIZE(x) ((int)(sizeof(x) / (sizeof(x[0]))))
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#define PLAY_NOTE_ARRAY(note_array, note_repeat, note_rest_style) play_notes(¬e_array, NOTE_ARRAY_SIZE((note_array)), (note_repeat), (note_rest_style));
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void play_goodbye_tone(void);
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void play_startup_tone(void);
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#define VIBRATO_LUT (float []) { \
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1.00090714186239, \
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1.00181152169061, \
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1.00270955652027, \
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1.00359767896099, \
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1.00447235162891, \
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1.00533008160601, \
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1.00616743486158, \
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1.00698105056935, \
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1.00776765525194, \
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1.00852407668313, \
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1.0092472574777, \
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1.00993426829815, \
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1.01058232060837, \
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1.01118877890462, \
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1.01175117235612, \
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1.01226720578933, \
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1.01273476995269, \
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1.01315195100182, \
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1.0135170391489, \
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1.01382853642434, \
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1.01408516350345, \
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1.01428586555648, \
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1.0144298170856, \
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1.0145164257189, \
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1.01454533493752, \
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1.0145164257189, \
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1.0144298170856, \
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1.01428586555648, \
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1.01408516350345, \
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1.01382853642434, \
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1.0135170391489, \
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1.01315195100182, \
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1.01273476995269, \
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1.01226720578933, \
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1.01175117235612, \
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1.01118877890462, \
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1.01058232060837, \
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1.00993426829815, \
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1.0092472574777, \
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1.00852407668313, \
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1.00776765525194, \
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1.00698105056935, \
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1.00616743486158, \
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1.00533008160601, \
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1.00447235162891, \
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1.00359767896099, \
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1.00270955652027, \
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1.00181152169061, \
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1.00090714186239, \
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1, \
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0.999093680298157, \
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0.998191753986265, \
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0.997297765337276, \
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0.996415217934032, \
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0.995547561242821, \
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0.99469817754036, \
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0.993870369236874, \
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0.993067346634376, \
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0.992292216155724, \
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0.991547969076588, \
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0.990837470789065, \
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0.990163450622494, \
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0.989528492243954, \
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0.988935024658062, \
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0.988385313823004, \
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0.98788145489731, \
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0.987425365129624, \
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0.987018777401739, \
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0.986663234433381, \
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0.986360083655655, \
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0.986110472758728, \
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0.985915345918143, \
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0.985775440703176, \
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0.985691285669809, \
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0.985663198640188, \
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0.985691285669809, \
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0.985775440703176, \
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0.985915345918143, \
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0.986110472758728, \
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0.986360083655655, \
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0.986663234433381, \
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0.987018777401739, \
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0.987425365129624, \
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0.98788145489731, \
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0.988385313823004, \
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0.988935024658062, \
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0.989528492243954, \
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0.990163450622494, \
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0.990837470789065, \
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0.991547969076588, \
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0.992292216155724, \
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0.993067346634376, \
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0.993870369236874, \
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0.99469817754036, \
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0.99554756124282, \
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0.996415217934032, \
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0.997297765337276, \
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0.998191753986265, \
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0.999093680298157, \
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1, \
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}
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#define VIBRATO_LUT_LENGTH NOTE_ARRAY_SIZE(VIBRATO_LUT)
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#endif |