diff options
Diffstat (limited to 'quantum/audio/audio.c')
| -rw-r--r-- | quantum/audio/audio.c | 78 |
1 files changed, 47 insertions, 31 deletions
diff --git a/quantum/audio/audio.c b/quantum/audio/audio.c index b3d6389dd5..c6523b908c 100644 --- a/quantum/audio/audio.c +++ b/quantum/audio/audio.c @@ -64,21 +64,21 @@ #ifndef AUDIO_TONE_STACKSIZE # define AUDIO_TONE_STACKSIZE 8 #endif -uint8_t active_tones = 0; // number of tones pushed onto the stack by audio_play_tone - might be more than the hardware is able to reproduce at any single time -musical_tone_t tones[AUDIO_TONE_STACKSIZE]; // stack of currently active tones +uint8_t active_tones = 0; // number of tones pushed onto the stack by audio_play_tone - might be more than the hardware is able to reproduce at any single time +musical_tone_t tones[AUDIO_TONE_STACKSIZE]; // stack of currently active tones -bool playing_melody = false; // playing a SONG? -bool playing_note = false; // or (possibly multiple simultaneous) tones -bool state_changed = false; // global flag, which is set if anything changes with the active_tones +bool playing_melody = false; // playing a SONG? +bool playing_note = false; // or (possibly multiple simultaneous) tones +bool state_changed = false; // global flag, which is set if anything changes with the active_tones // melody/SONG related state variables -float (*notes_pointer)[][2]; // SONG, an array of MUSICAL_NOTEs -uint16_t notes_count; // length of the notes_pointer array -bool notes_repeat; // PLAY_SONG or PLAY_LOOP? -uint16_t melody_current_note_duration = 0; // duration of the currently playing note from the active melody, in ms -uint8_t note_tempo = TEMPO_DEFAULT; // beats-per-minute -uint16_t current_note = 0; // index into the array at notes_pointer -bool note_resting = false; // if a short pause was introduced between two notes with the same frequency while playing a melody +float (*notes_pointer)[][2]; // SONG, an array of MUSICAL_NOTEs +uint16_t notes_count; // length of the notes_pointer array +bool notes_repeat; // PLAY_SONG or PLAY_LOOP? +uint16_t melody_current_note_duration = 0; // duration of the currently playing note from the active melody, in ms +uint8_t note_tempo = TEMPO_DEFAULT; // beats-per-minute +uint16_t current_note = 0; // index into the array at notes_pointer +bool note_resting = false; // if a short pause was introduced between two notes with the same frequency while playing a melody uint16_t last_timestamp = 0; #ifdef AUDIO_ENABLE_TONE_MULTIPLEXING @@ -86,7 +86,7 @@ uint16_t last_timestamp = 0; # define AUDIO_MAX_SIMULTANEOUS_TONES 3 # endif uint16_t tone_multiplexing_rate = AUDIO_TONE_MULTIPLEXING_RATE_DEFAULT; -uint8_t tone_multiplexing_index_shift = 0; // offset used on active-tone array access +uint8_t tone_multiplexing_index_shift = 0; // offset used on active-tone array access #endif // provided and used by voices.c @@ -123,12 +123,12 @@ void audio_init() { eeconfig_init(); } audio_config.raw = eeconfig_read_audio(); -#else // EEPROM settings +#else // EEPROM settings audio_config.enable = true; # ifdef AUDIO_CLICKY_ON audio_config.clicky_enable = true; # endif -#endif // EEPROM settings +#endif // EEPROM settings for (uint8_t i = 0; i < AUDIO_TONE_STACKSIZE; i++) { tones[i] = (musical_tone_t){.time_started = 0, .pitch = -1.0f, .duration = 0}; @@ -181,7 +181,9 @@ void audio_off(void) { eeconfig_update_audio(audio_config.raw); } -bool audio_is_on(void) { return (audio_config.enable != 0); } +bool audio_is_on(void) { + return (audio_config.enable != 0); +} void audio_stop_all() { if (audio_driver_stopped) { @@ -268,7 +270,7 @@ void audio_play_note(float pitch, uint16_t duration) { tones[j] = tones[j + 1]; tones[j + 1] = (musical_tone_t){.time_started = timer_read(), .pitch = pitch, .duration = duration}; } - return; // since this frequency played already, the hardware was already started + return; // since this frequency played already, the hardware was already started } } @@ -286,7 +288,7 @@ void audio_play_note(float pitch, uint16_t duration) { tones[active_tones - 1] = (musical_tone_t){.time_started = timer_read(), .pitch = pitch, .duration = duration}; // TODO: needs to be handled per note/tone -> use its timestamp instead? - voices_timer = timer_read(); // reset to zero, for the effects added by voices.c + voices_timer = timer_read(); // reset to zero, for the effects added by voices.c if (audio_driver_stopped) { audio_driver_start(); @@ -294,7 +296,9 @@ void audio_play_note(float pitch, uint16_t duration) { } } -void audio_play_tone(float pitch) { audio_play_note(pitch, 0xffff); } +void audio_play_tone(float pitch) { + audio_play_note(pitch, 0xffff); +} void audio_play_melody(float (*np)[][2], uint16_t n_count, bool n_repeat) { if (!audio_config.enable) { @@ -316,7 +320,7 @@ void audio_play_melody(float (*np)[][2], uint16_t n_count, bool n_repeat) { notes_count = n_count; notes_repeat = n_repeat; - current_note = 0; // note in the melody-array/list at note_pointer + current_note = 0; // note in the melody-array/list at note_pointer // start first note manually, which also starts the audio_driver // all following/remaining notes are played by 'audio_update_state' @@ -347,11 +351,17 @@ void audio_play_click(uint16_t delay, float pitch, uint16_t duration) { } } -bool audio_is_playing_note(void) { return playing_note; } +bool audio_is_playing_note(void) { + return playing_note; +} -bool audio_is_playing_melody(void) { return playing_melody; } +bool audio_is_playing_melody(void) { + return playing_melody; +} -uint8_t audio_get_number_of_active_tones(void) { return active_tones; } +uint8_t audio_get_number_of_active_tones(void) { + return active_tones; +} float audio_get_frequency(uint8_t tone_index) { if (tone_index >= active_tones) { @@ -370,7 +380,7 @@ float audio_get_processed_frequency(uint8_t tone_index) { #ifdef AUDIO_ENABLE_TONE_MULTIPLEXING index = index - tone_multiplexing_index_shift; - if (index < 0) // wrap around + if (index < 0) // wrap around index += active_tones; #endif @@ -396,7 +406,7 @@ bool audio_update_state(void) { last_timestamp = current_time; uint16_t previous_note = current_note; current_note++; - voices_timer = timer_read(); // reset to zero, for the effects added by voices.c + voices_timer = timer_read(); // reset to zero, for the effects added by voices.c if (current_note >= notes_count) { if (notes_repeat) { @@ -466,11 +476,11 @@ bool audio_update_state(void) { // housekeeping: stop notes that have no playtime left for (int i = 0; i < active_tones; i++) { - if ((tones[i].duration != 0xffff) // indefinitely playing notes, started by 'audio_play_tone' - && (tones[i].duration != 0) // 'uninitialized' + if ((tones[i].duration != 0xffff) // indefinitely playing notes, started by 'audio_play_tone' + && (tones[i].duration != 0) // 'uninitialized' ) { if (timer_elapsed(tones[i].time_started) >= tones[i].duration) { - audio_stop_tone(tones[i].pitch); // also sets 'state_changed=true' + audio_stop_tone(tones[i].pitch); // also sets 'state_changed=true' } } } @@ -487,9 +497,15 @@ bool audio_update_state(void) { // Tone-multiplexing functions #ifdef AUDIO_ENABLE_TONE_MULTIPLEXING -void audio_set_tone_multiplexing_rate(uint16_t rate) { tone_multiplexing_rate = rate; } -void audio_enable_tone_multiplexing(void) { tone_multiplexing_rate = AUDIO_TONE_MULTIPLEXING_RATE_DEFAULT; } -void audio_disable_tone_multiplexing(void) { tone_multiplexing_rate = 0; } +void audio_set_tone_multiplexing_rate(uint16_t rate) { + tone_multiplexing_rate = rate; +} +void audio_enable_tone_multiplexing(void) { + tone_multiplexing_rate = AUDIO_TONE_MULTIPLEXING_RATE_DEFAULT; +} +void audio_disable_tone_multiplexing(void) { + tone_multiplexing_rate = 0; +} void audio_increase_tone_multiplexing_rate(uint16_t change) { if ((0xffff - change) > tone_multiplexing_rate) { tone_multiplexing_rate += change; |