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-rw-r--r--quantum/audio/audio.c260
1 files changed, 240 insertions, 20 deletions
diff --git a/quantum/audio/audio.c b/quantum/audio/audio.c
index 597073611a..f2948f18aa 100644
--- a/quantum/audio/audio.c
+++ b/quantum/audio/audio.c
@@ -33,17 +33,41 @@
// TIMSK3 - Timer/Counter #3 Interrupt Mask Register
// Turn on/off 3A interputs, stopping/enabling the ISR calls
-#define ENABLE_AUDIO_COUNTER_3_ISR TIMSK3 |= _BV(OCIE3A)
-#define DISABLE_AUDIO_COUNTER_3_ISR TIMSK3 &= ~_BV(OCIE3A)
+#ifdef C6_AUDIO
+ #define ENABLE_AUDIO_COUNTER_3_ISR TIMSK3 |= _BV(OCIE3A)
+ #define DISABLE_AUDIO_COUNTER_3_ISR TIMSK3 &= ~_BV(OCIE3A)
+#endif
+
+#ifdef B5_AUDIO
+ #define ENABLE_AUDIO_COUNTER_1_ISR TIMSK1 |= _BV(OCIE1A)
+ #define DISABLE_AUDIO_COUNTER_1_ISR TIMSK1 &= ~_BV(OCIE1A)
+#endif
// TCCR3A: Timer/Counter #3 Control Register
// Compare Output Mode (COM3An) = 0b00 = Normal port operation, OC3A disconnected from PC6
-#define ENABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A |= _BV(COM3A1);
-#define DISABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A &= ~(_BV(COM3A1) | _BV(COM3A0));
+
+#ifdef C6_AUDIO
+ #define ENABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A |= _BV(COM3A1);
+ #define DISABLE_AUDIO_COUNTER_3_OUTPUT TCCR3A &= ~(_BV(COM3A1) | _BV(COM3A0));
+#endif
+
+#ifdef B5_AUDIO
+ #define ENABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A |= _BV(COM1A1);
+ #define DISABLE_AUDIO_COUNTER_1_OUTPUT TCCR1A &= ~(_BV(COM1A1) | _BV(COM1A0));
+#endif
// Fast PWM Mode Controls
-#define TIMER_3_PERIOD ICR3
-#define TIMER_3_DUTY_CYCLE OCR3A
+
+#ifdef C6_AUDIO
+ #define TIMER_3_PERIOD ICR3
+ #define TIMER_3_DUTY_CYCLE OCR3A
+#endif
+
+#ifdef B5_AUDIO
+ #define TIMER_1_PERIOD ICR1
+ #define TIMER_1_DUTY_CYCLE OCR1A
+#endif
+
// -----------------------------------------------------------------------------
@@ -105,16 +129,43 @@ void audio_init()
audio_config.raw = eeconfig_read_audio();
// Set port PC6 (OC3A and /OC4A) as output
- DDRC |= _BV(PORTC6);
- DISABLE_AUDIO_COUNTER_3_ISR;
+ #ifdef C6_AUDIO
+ DDRC |= _BV(PORTC6);
+ #else
+ DDRC |= _BV(PORTC6);
+ PORTC &= ~_BV(PORTC6);
+ #endif
+
+ #ifdef B5_AUDIO
+ DDRB |= _BV(PORTB5);
+ #else
+ DDRB |= _BV(PORTB5);
+ PORTB &= ~_BV(PORTB5);
+ #endif
+
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #endif
+
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ #endif
// TCCR3A / TCCR3B: Timer/Counter #3 Control Registers
// Compare Output Mode (COM3An) = 0b00 = Normal port operation, OC3A disconnected from PC6
// Waveform Generation Mode (WGM3n) = 0b1110 = Fast PWM Mode 14 (Period = ICR3, Duty Cycle = OCR3A)
// Clock Select (CS3n) = 0b010 = Clock / 8
- TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
- TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
+
+ #ifdef C6_AUDIO
+ TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
+ TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
+ #endif
+
+ #ifdef B5_AUDIO
+ TCCR1A = (0 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (0 << WGM10);
+ TCCR1B = (1 << WGM13) | (1 << WGM12) | (0 << CS12) | (1 << CS11) | (0 << CS10);
+ #endif
audio_initialized = true;
}
@@ -128,8 +179,16 @@ void stop_all_notes()
}
voices = 0;
- DISABLE_AUDIO_COUNTER_3_ISR;
- DISABLE_AUDIO_COUNTER_3_OUTPUT;
+
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ DISABLE_AUDIO_COUNTER_1_OUTPUT;
+ #endif
playing_notes = false;
playing_note = false;
@@ -171,8 +230,14 @@ void stop_note(float freq)
voice_place = 0;
}
if (voices == 0) {
- DISABLE_AUDIO_COUNTER_3_ISR;
- DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ DISABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ DISABLE_AUDIO_COUNTER_1_OUTPUT;
+ #endif
frequency = 0;
volume = 0;
playing_note = false;
@@ -200,6 +265,7 @@ float vibrato(float average_freq) {
#endif
+#ifdef C6_AUDIO
ISR(TIMER3_COMPA_vect)
{
float freq;
@@ -328,6 +394,138 @@ ISR(TIMER3_COMPA_vect)
playing_note = false;
}
}
+#endif
+
+#ifdef B5_AUDIO
+ISR(TIMER1_COMPA_vect)
+{
+ float freq;
+
+ if (playing_note) {
+ if (voices > 0) {
+ if (polyphony_rate > 0) {
+ if (voices > 1) {
+ voice_place %= voices;
+ if (place++ > (frequencies[voice_place] / polyphony_rate / CPU_PRESCALER)) {
+ voice_place = (voice_place + 1) % voices;
+ place = 0.0;
+ }
+ }
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequencies[voice_place]);
+ } else {
+ freq = frequencies[voice_place];
+ }
+ #else
+ freq = frequencies[voice_place];
+ #endif
+ } else {
+ if (glissando) {
+ if (frequency != 0 && frequency < frequencies[voices - 1] && frequency < frequencies[voices - 1] * pow(2, -440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, 440/frequency/12/2);
+ } else if (frequency != 0 && frequency > frequencies[voices - 1] && frequency > frequencies[voices - 1] * pow(2, 440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, -440/frequency/12/2);
+ } else {
+ frequency = frequencies[voices - 1];
+ }
+ } else {
+ frequency = frequencies[voices - 1];
+ }
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequency);
+ } else {
+ freq = frequency;
+ }
+ #else
+ freq = frequency;
+ #endif
+ }
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+
+ freq = voice_envelope(freq);
+
+ if (freq < 30.517578125) {
+ freq = 30.52;
+ }
+
+ TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
+ TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
+ }
+ }
+
+ if (playing_notes) {
+ if (note_frequency > 0) {
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(note_frequency);
+ } else {
+ freq = note_frequency;
+ }
+ #else
+ freq = note_frequency;
+ #endif
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+ freq = voice_envelope(freq);
+
+ TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
+ TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
+ } else {
+ TIMER_1_PERIOD = 0;
+ TIMER_1_DUTY_CYCLE = 0;
+ }
+
+ note_position++;
+ bool end_of_note = false;
+ if (TIMER_1_PERIOD > 0) {
+ end_of_note = (note_position >= (note_length / TIMER_1_PERIOD * 0xFFFF));
+ } else {
+ end_of_note = (note_position >= (note_length * 0x7FF));
+ }
+
+ if (end_of_note) {
+ current_note++;
+ if (current_note >= notes_count) {
+ if (notes_repeat) {
+ current_note = 0;
+ } else {
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ DISABLE_AUDIO_COUNTER_1_OUTPUT;
+ playing_notes = false;
+ return;
+ }
+ }
+ if (!note_resting && (notes_rest > 0)) {
+ note_resting = true;
+ note_frequency = 0;
+ note_length = notes_rest;
+ current_note--;
+ } else {
+ note_resting = false;
+ envelope_index = 0;
+ note_frequency = (*notes_pointer)[current_note][0];
+ note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
+ }
+
+ note_position = 0;
+ }
+ }
+
+ if (!audio_config.enable) {
+ playing_notes = false;
+ playing_note = false;
+ }
+}
+#endif
void play_note(float freq, int vol) {
@@ -338,7 +536,12 @@ void play_note(float freq, int vol) {
}
if (audio_config.enable && voices < 8) {
- DISABLE_AUDIO_COUNTER_3_ISR;
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #endif
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ #endif
// Cancel notes if notes are playing
if (playing_notes)
@@ -354,8 +557,14 @@ void play_note(float freq, int vol) {
voices++;
}
- ENABLE_AUDIO_COUNTER_3_ISR;
- ENABLE_AUDIO_COUNTER_3_OUTPUT;
+ #ifdef C6_AUDIO
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ ENABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ #ifdef B5_AUDIO
+ ENABLE_AUDIO_COUNTER_1_ISR;
+ ENABLE_AUDIO_COUNTER_1_OUTPUT;
+ #endif
}
}
@@ -369,7 +578,12 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest)
if (audio_config.enable) {
- DISABLE_AUDIO_COUNTER_3_ISR;
+ #ifdef C6_AUDIO
+ DISABLE_AUDIO_COUNTER_3_ISR;
+ #endif
+ #ifdef B5_AUDIO
+ DISABLE_AUDIO_COUNTER_1_ISR;
+ #endif
// Cancel note if a note is playing
if (playing_note)
@@ -390,8 +604,14 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest)
note_position = 0;
- ENABLE_AUDIO_COUNTER_3_ISR;
- ENABLE_AUDIO_COUNTER_3_OUTPUT;
+ #ifdef C6_AUDIO
+ ENABLE_AUDIO_COUNTER_3_ISR;
+ ENABLE_AUDIO_COUNTER_3_OUTPUT;
+ #endif
+ #ifdef B5_AUDIO
+ ENABLE_AUDIO_COUNTER_1_ISR;
+ ENABLE_AUDIO_COUNTER_1_OUTPUT;
+ #endif
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 20:37:13 +0000