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Merge branch 'master' of https://github.com/jackhumbert/qmk_firmware

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This commit is contained in:
Stephan Bösebeck 2016-04-20 11:15:59 +02:00
commit 13244a259c
13 changed files with 1547 additions and 1595 deletions
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274
quantum/audio.c
View file

@ -10,20 +10,23 @@
#include "eeconfig.h"
#include "vibrato_lut.h"
#ifdef VIBRATO_ENABLE
#include "vibrato_lut.h"
#endif
#define PI 3.14159265
#define CPU_PRESCALER 8
// Largely untested PWM audio mode (doesn't sound as good)
// #define PWM_AUDIO
#ifdef PWM_AUDIO
#include "wave.h"
#define SAMPLE_DIVIDER 39
#define SAMPLE_RATE (2000000.0/SAMPLE_DIVIDER/2048)
// Resistor value of 1/ (2 * PI * 10nF * (2000000 hertz / SAMPLE_DIVIDER / 10)) for 10nF cap
float places[8] = {0, 0, 0, 0, 0, 0, 0, 0};
uint16_t place_int = 0;
bool repeat = true;
#endif
void delay_us(int count) {
@ -34,25 +37,21 @@ void delay_us(int count) {
int voices = 0;
int voice_place = 0;
double frequency = 0;
float frequency = 0;
int volume = 0;
long position = 0;
double frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
float frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
bool sliding = false;
int max = 0xFF;
float sum = 0;
int value = 128;
float place = 0;
float places[8] = {0, 0, 0, 0, 0, 0, 0, 0};
uint16_t place_int = 0;
bool repeat = true;
uint8_t * sample;
uint16_t sample_length = 0;
double freq = 0;
// float freq = 0;
bool notes = false;
bool note = false;
@ -62,7 +61,7 @@ float note_tempo = TEMPO_DEFAULT;
float note_timbre = TIMBRE_DEFAULT;
uint16_t note_position = 0;
float (* notes_pointer)[][2];
uint8_t notes_count;
uint16_t notes_count;
bool notes_repeat;
float notes_rest;
bool note_resting = false;
@ -70,11 +69,15 @@ bool note_resting = false;
uint8_t current_note = 0;
uint8_t rest_counter = 0;
#ifdef VIBRATO_ENABLE
float vibrato_counter = 0;
float vibrato_strength = .5;
float vibrato_rate = 0.125;
#endif
float polyphony_rate = .5;
float polyphony_rate = 0;
bool inited = false;
audio_config_t audio_config;
@ -94,6 +97,7 @@ void audio_off(void) {
eeconfig_write_audio(audio_config.raw);
}
#ifdef VIBRATO_ENABLE
// Vibrato rate functions
void set_vibrato_rate(float rate) {
@ -124,6 +128,8 @@ void decrease_vibrato_strength(float change) {
#endif
#endif
// Polyphony functions
void set_polyphony_rate(float rate) {
@ -170,66 +176,7 @@ void increase_tempo(uint8_t tempo_change) {
}
}
void stop_all_notes() {
voices = 0;
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
#else
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A &= ~_BV(COM3A1);
#endif
notes = false;
note = false;
frequency = 0;
volume = 0;
for (int i = 0; i < 8; i++) {
frequencies[i] = 0;
volumes[i] = 0;
}
}
void stop_note(double freq) {
if (note) {
cli();
#ifdef PWM_AUDIO
freq = freq / SAMPLE_RATE;
#endif
for (int i = 7; i >= 0; i--) {
if (frequencies[i] == freq) {
frequencies[i] = 0;
volumes[i] = 0;
for (int j = i; (j < 7); j++) {
frequencies[j] = frequencies[j+1];
frequencies[j+1] = 0;
volumes[j] = volumes[j+1];
volumes[j+1] = 0;
}
break;
}
}
voices--;
if (voices < 0)
voices = 0;
if (voice_place >= voices) {
voice_place = 0;
}
if (voices == 0) {
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
#else
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A &= ~_BV(COM3A1);
#endif
frequency = 0;
volume = 0;
note = false;
}
sei();
}
}
void init_notes() {
void audio_init() {
/* check signature */
if (!eeconfig_is_enabled()) {
@ -264,8 +211,76 @@ void init_notes() {
TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
#endif
inited = true;
_delay_ms(500);
}
void stop_all_notes() {
if (!inited) {
audio_init();
}
voices = 0;
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
#else
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A &= ~_BV(COM3A1);
#endif
notes = false;
note = false;
frequency = 0;
volume = 0;
for (int i = 0; i < 8; i++) {
frequencies[i] = 0;
volumes[i] = 0;
}
}
void stop_note(float freq) {
if (note) {
if (!inited) {
audio_init();
}
#ifdef PWM_AUDIO
freq = freq / SAMPLE_RATE;
#endif
for (int i = 7; i >= 0; i--) {
if (frequencies[i] == freq) {
frequencies[i] = 0;
volumes[i] = 0;
for (int j = i; (j < 7); j++) {
frequencies[j] = frequencies[j+1];
frequencies[j+1] = 0;
volumes[j] = volumes[j+1];
volumes[j+1] = 0;
}
break;
}
}
voices--;
if (voices < 0)
voices = 0;
if (voice_place >= voices) {
voice_place = 0;
}
if (voices == 0) {
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
#else
TIMSK3 &= ~_BV(OCIE3A);
TCCR3A &= ~_BV(COM3A1);
#endif
frequency = 0;
volume = 0;
note = false;
}
}
}
#ifdef VIBRATO_ENABLE
float mod(float a, int b)
{
float r = fmod(a, b);
@ -282,6 +297,8 @@ float vibrato(float average_freq) {
return vibrated_freq;
}
#endif
ISR(TIMER3_COMPA_vect) {
if (note) {
#ifdef PWM_AUDIO
@ -333,6 +350,7 @@ ISR(TIMER3_COMPA_vect) {
}
#else
if (voices > 0) {
float freq;
if (polyphony_rate > 0) {
if (voices > 1) {
voice_place %= voices;
@ -341,9 +359,13 @@ ISR(TIMER3_COMPA_vect) {
place = 0.0;
}
}
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(frequencies[voice_place]);
} else {
#else
{
#endif
freq = frequencies[voice_place];
}
} else {
@ -355,9 +377,14 @@ ISR(TIMER3_COMPA_vect) {
frequency = frequencies[voices - 1];
}
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(frequency);
} else {
#else
{
#endif
freq = frequency;
}
}
@ -390,9 +417,13 @@ ISR(TIMER3_COMPA_vect) {
if (note_frequency > 0) {
float freq;
#ifdef VIBRATO_ENABLE
if (vibrato_strength > 0) {
freq = vibrato(note_frequency);
} else {
#else
{
#endif
freq = note_frequency;
}
@ -453,10 +484,45 @@ ISR(TIMER3_COMPA_vect) {
}
}
void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest) {
void play_note(float freq, int vol) {
if (!inited) {
audio_init();
}
if (audio_config.enable && voices < 8) {
TIMSK3 &= ~_BV(OCIE3A);
// Cancel notes if notes are playing
if (notes)
stop_all_notes();
note = true;
#ifdef PWM_AUDIO
freq = freq / SAMPLE_RATE;
#endif
if (freq > 0) {
frequencies[voices] = freq;
volumes[voices] = vol;
voices++;
}
#ifdef PWM_AUDIO
TIMSK3 |= _BV(OCIE3A);
#else
TIMSK3 |= _BV(OCIE3A);
TCCR3A |= _BV(COM3A1);
#endif
}
}
void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest) {
if (!inited) {
audio_init();
}
if (audio_config.enable) {
cli();
TIMSK3 &= ~_BV(OCIE3A);
// Cancel note if a note is playing
if (note)
stop_all_notes();
@ -485,57 +551,28 @@ if (audio_config.enable) {
TIMSK3 |= _BV(OCIE3A);
TCCR3A |= _BV(COM3A1);
#endif
sei();
}
}
#ifdef PWM_AUDIO
void play_sample(uint8_t * s, uint16_t l, bool r) {
if (audio_config.enable) {
stop_all_notes();
place_int = 0;
sample = s;
sample_length = l;
repeat = r;
#ifdef PWM_AUDIO
TIMSK3 |= _BV(OCIE3A);
#else
#endif
}
}
void play_note(double freq, int vol) {
if (audio_config.enable && voices < 8) {
cli();
// Cancel notes if notes are playing
if (notes)
stop_all_notes();
note = true;
#ifdef PWM_AUDIO
freq = freq / SAMPLE_RATE;
#endif
if (freq > 0) {
frequencies[voices] = freq;
volumes[voices] = vol;
voices++;
if (!inited) {
audio_init();
}
#ifdef PWM_AUDIO
TIMSK3 |= _BV(OCIE3A);
#else
TIMSK3 |= _BV(OCIE3A);
TCCR3A |= _BV(COM3A1);
#endif
sei();
}
if (audio_config.enable) {
TIMSK3 &= ~_BV(OCIE3A);
stop_all_notes();
place_int = 0;
sample = s;
sample_length = l;
repeat = r;
TIMSK3 |= _BV(OCIE3A);
}
}
#endif
//------------------------------------------------------------------------------
// Override these functions in your keymap file to play different tunes on
@ -545,8 +582,11 @@ void play_startup_tone()
{
}
__attribute__ ((weak))
void play_goodbye_tone()
{
}
//------------------------------------------------------------------------------

22
quantum/audio.h
View file

@ -8,6 +8,11 @@
#ifndef AUDIO_H
#define AUDIO_H
// Largely untested PWM audio mode (doesn't sound as good)
// #define PWM_AUDIO
// #define VIBRATO_ENABLE
// Enable vibrato strength/amplitude - slows down ISR too much
// #define VIBRATO_STRENGTH_ENABLE
@ -25,6 +30,8 @@ void audio_off(void);
// Vibrato rate functions
#ifdef VIBRATO_ENABLE
void set_vibrato_rate(float rate);
void increase_vibrato_rate(float change);
void decrease_vibrato_rate(float change);
@ -37,6 +44,8 @@ void decrease_vibrato_strength(float change);
#endif
#endif
// Polyphony functions
void set_polyphony_rate(float rate);
@ -51,12 +60,15 @@ void set_tempo(float tempo);
void increase_tempo(uint8_t tempo_change);
void decrease_tempo(uint8_t tempo_change);
void audio_init();
#ifdef PWM_AUDIO
void play_sample(uint8_t * s, uint16_t l, bool r);
void play_note(double freq, int vol);
void stop_note(double freq);
#endif
void play_note(float freq, int vol);
void stop_note(float freq);
void stop_all_notes(void);
void init_notes(void);
void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest);
void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest);
#define SCALE (int []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
@ -67,7 +79,7 @@ void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest);
// These macros are used to allow play_notes to play an array of indeterminate
// length. This works around the limitation of C's sizeof operation on pointers.
// The global float array for the song must be used here.
#define NOTE_ARRAY_SIZE(x) ((int)(sizeof(x) / (sizeof(x[0]))))
#define NOTE_ARRAY_SIZE(x) ((int16_t)(sizeof(x) / (sizeof(x[0]))))
#define PLAY_NOTE_ARRAY(note_array, note_repeat, note_rest_style) play_notes(&note_array, NOTE_ARRAY_SIZE((note_array)), (note_repeat), (note_rest_style));
void play_goodbye_tone(void);

82
quantum/vibrato_lut.h
View file

@ -2,107 +2,27 @@
#include <avr/interrupt.h>
#include <avr/pgmspace.h>
#define VIBRATO_LUT_LENGTH 100
#define VIBRATO_LUT_LENGTH 20
const float VIBRATO_LUT[VIBRATO_LUT_LENGTH] = { \
1.00045346811453,
1.00090535101508,
1.00135386178926,
1.00179722447259,
1.00223368114872,
1.0026614990145,
1.00307897737994,
1.00348445457284,
1.00387631471807,
1.00425299436105,
1.00461298890553,
1.00495485883603,
1.00527723569589,
1.00557882779254,
1.00585842560279,
1.00611490685176,
1.00634724124066,
1.00655449479987,
1.00673583384565,
1.00689052852052,
1.00701795589922,
1.00711760264454,
1.0071890671992,
1.00723206150266,
1.0072464122237,
1.00723206150266,
1.0071890671992,
1.00711760264454,
1.00701795589922,
1.00689052852052,
1.00673583384565,
1.00655449479987,
1.00634724124066,
1.00611490685176,
1.00585842560279,
1.00557882779254,
1.00527723569589,
1.00495485883603,
1.00461298890553,
1.00425299436105,
1.00387631471807,
1.00348445457284,
1.00307897737994,
1.0026614990145,
1.00223368114872,
1.00179722447259,
1.00135386178926,
1.00090535101508,
1.00045346811453,
1,
0.999546737425598,
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0.99777129706302,
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0.995408193048995,
0.995069570744927,
0.994750467325326,
0.994452122858643,
0.994175695650927,
0.993922257974591,
0.99369279212925,
0.993488186845591,
0.993309234042139,
0.993156625943589,
0.993030952568311,
0.99293269959154,
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0.992805720491269,
0.992819865670409,
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0.993488186845591,
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0.993922257974591,
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0.998647968674285,
0.999095467903976,
0.999546737425598,
1
};