diff options
Diffstat (limited to 'quantum/audio/audio_arm.c')
| -rw-r--r-- | quantum/audio/audio_arm.c | 846 |
1 files changed, 391 insertions, 455 deletions
diff --git a/quantum/audio/audio_arm.c b/quantum/audio/audio_arm.c index de0cd15c58..87d625301f 100644 --- a/quantum/audio/audio_arm.c +++ b/quantum/audio/audio_arm.c @@ -26,41 +26,41 @@ // ----------------------------------------------------------------------------- -int voices = 0; -int voice_place = 0; -float frequency = 0; +int voices = 0; +int voice_place = 0; +float frequency = 0; float frequency_alt = 0; -int volume = 0; -long position = 0; +int volume = 0; +long position = 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 volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0}; +bool sliding = false; float place = 0; -uint8_t * sample; +uint8_t *sample; uint16_t sample_length = 0; -bool playing_notes = false; -bool playing_note = false; +bool playing_notes = false; +bool playing_note = false; float note_frequency = 0; -float note_length = 0; -uint8_t note_tempo = TEMPO_DEFAULT; -float note_timbre = TIMBRE_DEFAULT; -uint16_t note_position = 0; -float (* notes_pointer)[][2]; +float note_length = 0; +uint8_t note_tempo = TEMPO_DEFAULT; +float note_timbre = TIMBRE_DEFAULT; +uint16_t note_position = 0; +float (*notes_pointer)[][2]; uint16_t notes_count; bool notes_repeat; bool note_resting = false; uint16_t current_note = 0; -uint8_t rest_counter = 0; +uint8_t rest_counter = 0; #ifdef VIBRATO_ENABLE -float vibrato_counter = 0; +float vibrato_counter = 0; float vibrato_strength = .5; -float vibrato_rate = 0.125; +float vibrato_rate = 0.125; #endif float polyphony_rate = 0; @@ -70,10 +70,10 @@ static bool audio_initialized = false; audio_config_t audio_config; uint16_t envelope_index = 0; -bool glissando = true; +bool glissando = true; #ifndef STARTUP_SONG - #define STARTUP_SONG SONG(STARTUP_SOUND) +# define STARTUP_SONG SONG(STARTUP_SOUND) #endif float startup_song[][2] = STARTUP_SONG; @@ -81,27 +81,32 @@ static void gpt_cb8(GPTDriver *gptp); #define DAC_BUFFER_SIZE 100 #ifndef DAC_SAMPLE_MAX -#define DAC_SAMPLE_MAX 65535U +# define DAC_SAMPLE_MAX 65535U #endif -#define START_CHANNEL_1() gptStart(&GPTD6, &gpt6cfg1); \ +#define START_CHANNEL_1() \ + gptStart(&GPTD6, &gpt6cfg1); \ gptStartContinuous(&GPTD6, 2U) -#define START_CHANNEL_2() gptStart(&GPTD7, &gpt7cfg1); \ +#define START_CHANNEL_2() \ + gptStart(&GPTD7, &gpt7cfg1); \ gptStartContinuous(&GPTD7, 2U) #define STOP_CHANNEL_1() gptStopTimer(&GPTD6) #define STOP_CHANNEL_2() gptStopTimer(&GPTD7) -#define RESTART_CHANNEL_1() STOP_CHANNEL_1(); \ +#define RESTART_CHANNEL_1() \ + STOP_CHANNEL_1(); \ START_CHANNEL_1() -#define RESTART_CHANNEL_2() STOP_CHANNEL_2(); \ +#define RESTART_CHANNEL_2() \ + STOP_CHANNEL_2(); \ START_CHANNEL_2() -#define UPDATE_CHANNEL_1_FREQ(freq) gpt6cfg1.frequency = freq * DAC_BUFFER_SIZE; \ +#define UPDATE_CHANNEL_1_FREQ(freq) \ + gpt6cfg1.frequency = freq * DAC_BUFFER_SIZE; \ RESTART_CHANNEL_1() -#define UPDATE_CHANNEL_2_FREQ(freq) gpt7cfg1.frequency = freq * DAC_BUFFER_SIZE; \ +#define UPDATE_CHANNEL_2_FREQ(freq) \ + gpt7cfg1.frequency = freq * DAC_BUFFER_SIZE; \ RESTART_CHANNEL_2() #define GET_CHANNEL_1_FREQ (uint16_t)(gpt6cfg1.frequency * DAC_BUFFER_SIZE) #define GET_CHANNEL_2_FREQ (uint16_t)(gpt7cfg1.frequency * DAC_BUFFER_SIZE) - /* * GPT6 configuration. */ @@ -112,27 +117,20 @@ static void gpt_cb8(GPTDriver *gptp); // .dier = 0U // }; -GPTConfig gpt6cfg1 = { - .frequency = 440U*DAC_BUFFER_SIZE, - .callback = NULL, - .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */ - .dier = 0U -}; +GPTConfig gpt6cfg1 = {.frequency = 440U * DAC_BUFFER_SIZE, + .callback = NULL, + .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */ + .dier = 0U}; -GPTConfig gpt7cfg1 = { - .frequency = 440U*DAC_BUFFER_SIZE, - .callback = NULL, - .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */ - .dier = 0U -}; - -GPTConfig gpt8cfg1 = { - .frequency = 10, - .callback = gpt_cb8, - .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */ - .dier = 0U -}; +GPTConfig gpt7cfg1 = {.frequency = 440U * DAC_BUFFER_SIZE, + .callback = NULL, + .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */ + .dier = 0U}; +GPTConfig gpt8cfg1 = {.frequency = 10, + .callback = gpt_cb8, + .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */ + .dier = 0U}; /* * DAC test buffer (sine wave). @@ -205,122 +203,101 @@ GPTConfig gpt8cfg1 = { // squarewave static const dacsample_t dac_buffer[DAC_BUFFER_SIZE] = { - // First half is max, second half is 0 - [0 ... DAC_BUFFER_SIZE/2-1] = DAC_SAMPLE_MAX, - [DAC_BUFFER_SIZE/2 ... DAC_BUFFER_SIZE -1] = 0, + // First half is max, second half is 0 + [0 ... DAC_BUFFER_SIZE / 2 - 1] = DAC_SAMPLE_MAX, + [DAC_BUFFER_SIZE / 2 ... DAC_BUFFER_SIZE - 1] = 0, }; // squarewave static const dacsample_t dac_buffer_2[DAC_BUFFER_SIZE] = { - // opposite of dac_buffer above - [0 ... DAC_BUFFER_SIZE/2-1] = 0, - [DAC_BUFFER_SIZE/2 ... DAC_BUFFER_SIZE -1] = DAC_SAMPLE_MAX, + // opposite of dac_buffer above + [0 ... DAC_BUFFER_SIZE / 2 - 1] = 0, + [DAC_BUFFER_SIZE / 2 ... DAC_BUFFER_SIZE - 1] = DAC_SAMPLE_MAX, }; /* * DAC streaming callback. */ -size_t nx = 0, ny = 0, nz = 0; +size_t nx = 0, ny = 0, nz = 0; static void end_cb1(DACDriver *dacp, dacsample_t *buffer, size_t n) { + (void)dacp; - (void)dacp; - - nz++; - if (dac_buffer == buffer) { - nx += n; - } - else { - ny += n; - } + nz++; + if (dac_buffer == buffer) { + nx += n; + } else { + ny += n; + } - if ((nz % 1000) == 0) { - // palTogglePad(GPIOD, GPIOD_LED3); - } + if ((nz % 1000) == 0) { + // palTogglePad(GPIOD, GPIOD_LED3); + } } /* * DAC error callback. */ static void error_cb1(DACDriver *dacp, dacerror_t err) { + (void)dacp; + (void)err; - (void)dacp; - (void)err; - - chSysHalt("DAC failure"); + chSysHalt("DAC failure"); } -static const DACConfig dac1cfg1 = { - .init = DAC_SAMPLE_MAX, - .datamode = DAC_DHRM_12BIT_RIGHT -}; +static const DACConfig dac1cfg1 = {.init = DAC_SAMPLE_MAX, .datamode = DAC_DHRM_12BIT_RIGHT}; -static const DACConversionGroup dacgrpcfg1 = { - .num_channels = 1U, - .end_cb = end_cb1, - .error_cb = error_cb1, - .trigger = DAC_TRG(0) -}; +static const DACConversionGroup dacgrpcfg1 = {.num_channels = 1U, .end_cb = end_cb1, .error_cb = error_cb1, .trigger = DAC_TRG(0)}; -static const DACConfig dac1cfg2 = { - .init = DAC_SAMPLE_MAX, - .datamode = DAC_DHRM_12BIT_RIGHT -}; +static const DACConfig dac1cfg2 = {.init = DAC_SAMPLE_MAX, .datamode = DAC_DHRM_12BIT_RIGHT}; -static const DACConversionGroup dacgrpcfg2 = { - .num_channels = 1U, - .end_cb = end_cb1, - .error_cb = error_cb1, - .trigger = DAC_TRG(0) -}; +static const DACConversionGroup dacgrpcfg2 = {.num_channels = 1U, .end_cb = end_cb1, .error_cb = error_cb1, .trigger = DAC_TRG(0)}; void audio_init() { + if (audio_initialized) { + return; + } - if (audio_initialized) { - return; - } - - // Check EEPROM - #if defined(STM32_EEPROM_ENABLE) || defined(PROTOCOL_ARM_ATSAM) || defined(EEPROM_SIZE) +// Check EEPROM +#if defined(STM32_EEPROM_ENABLE) || defined(PROTOCOL_ARM_ATSAM) || defined(EEPROM_SIZE) if (!eeconfig_is_enabled()) { - eeconfig_init(); + eeconfig_init(); } audio_config.raw = eeconfig_read_audio(); -#else // ARM EEPROM - audio_config.enable = true; - #ifdef AUDIO_CLICKY_ON +#else // ARM EEPROM + audio_config.enable = true; +# ifdef AUDIO_CLICKY_ON audio_config.clicky_enable = true; - #endif -#endif // ARM EEPROM - - /* - * Starting DAC1 driver, setting up the output pin as analog as suggested - * by the Reference Manual. - */ - palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG); - palSetPadMode(GPIOA, 5, PAL_MODE_INPUT_ANALOG); - dacStart(&DACD1, &dac1cfg1); - dacStart(&DACD2, &dac1cfg2); - - /* - * Starting GPT6/7 driver, it is used for triggering the DAC. - */ - START_CHANNEL_1(); - START_CHANNEL_2(); - - /* - * Starting a continuous conversion. - */ - dacStartConversion(&DACD1, &dacgrpcfg1, (dacsample_t *)dac_buffer, DAC_BUFFER_SIZE); - dacStartConversion(&DACD2, &dacgrpcfg2, (dacsample_t *)dac_buffer_2, DAC_BUFFER_SIZE); - - audio_initialized = true; - - if (audio_config.enable) { - PLAY_SONG(startup_song); - } else { - stop_all_notes(); - } - +# endif +#endif // ARM EEPROM + + /* + * Starting DAC1 driver, setting up the output pin as analog as suggested + * by the Reference Manual. + */ + palSetPadMode(GPIOA, 4, PAL_MODE_INPUT_ANALOG); + palSetPadMode(GPIOA, 5, PAL_MODE_INPUT_ANALOG); + dacStart(&DACD1, &dac1cfg1); + dacStart(&DACD2, &dac1cfg2); + + /* + * Starting GPT6/7 driver, it is used for triggering the DAC. + */ + START_CHANNEL_1(); + START_CHANNEL_2(); + + /* + * Starting a continuous conversion. + */ + dacStartConversion(&DACD1, &dacgrpcfg1, (dacsample_t *)dac_buffer, DAC_BUFFER_SIZE); + dacStartConversion(&DACD2, &dacgrpcfg2, (dacsample_t *)dac_buffer_2, DAC_BUFFER_SIZE); + + audio_initialized = true; + + if (audio_config.enable) { + PLAY_SONG(startup_song); + } else { + stop_all_notes(); + } } void stop_all_notes() { @@ -336,437 +313,396 @@ void stop_all_notes() { gptStopTimer(&GPTD8); playing_notes = false; - playing_note = false; - frequency = 0; + playing_note = false; + frequency = 0; frequency_alt = 0; - volume = 0; + volume = 0; - for (uint8_t i = 0; i < 8; i++) - { + for (uint8_t i = 0; i < 8; i++) { frequencies[i] = 0; - volumes[i] = 0; + volumes[i] = 0; } } void stop_note(float freq) { - dprintf("audio stop note freq=%d", (int)freq); + dprintf("audio stop note freq=%d", (int)freq); - if (playing_note) { - if (!audio_initialized) { - audio_init(); - } - 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; + if (playing_note) { + if (!audio_initialized) { + audio_init(); + } + 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) { + STOP_CHANNEL_1(); + STOP_CHANNEL_2(); + gptStopTimer(&GPTD8); + frequency = 0; + frequency_alt = 0; + volume = 0; + playing_note = false; } - break; - } - } - voices--; - if (voices < 0) { - voices = 0; - } - if (voice_place >= voices) { - voice_place = 0; - } - if (voices == 0) { - STOP_CHANNEL_1(); - STOP_CHANNEL_2(); - gptStopTimer(&GPTD8); - frequency = 0; - frequency_alt = 0; - volume = 0; - playing_note = false; } - } } #ifdef VIBRATO_ENABLE float mod(float a, int b) { - float r = fmod(a, b); - return r < 0 ? r + b : r; + float r = fmod(a, b); + return r < 0 ? r + b : r; } float vibrato(float average_freq) { - #ifdef VIBRATO_STRENGTH_ENABLE +# ifdef VIBRATO_STRENGTH_ENABLE float vibrated_freq = average_freq * pow(vibrato_lut[(int)vibrato_counter], vibrato_strength); - #else +# else float vibrated_freq = average_freq * vibrato_lut[(int)vibrato_counter]; - #endif - vibrato_counter = mod((vibrato_counter + vibrato_rate * (1.0 + 440.0/average_freq)), VIBRATO_LUT_LENGTH); - return vibrated_freq; +# endif + vibrato_counter = mod((vibrato_counter + vibrato_rate * (1.0 + 440.0 / average_freq)), VIBRATO_LUT_LENGTH); + return vibrated_freq; } #endif static void gpt_cb8(GPTDriver *gptp) { - float freq; - - if (playing_note) { - if (voices > 0) { - - float freq_alt = 0; - if (voices > 1) { - if (polyphony_rate == 0) { - if (glissando) { - if (frequency_alt != 0 && frequency_alt < frequencies[voices - 2] && frequency_alt < frequencies[voices - 2] * pow(2, -440/frequencies[voices - 2]/12/2)) { - frequency_alt = frequency_alt * pow(2, 440/frequency_alt/12/2); - } else if (frequency_alt != 0 && frequency_alt > frequencies[voices - 2] && frequency_alt > frequencies[voices - 2] * pow(2, 440/frequencies[voices - 2]/12/2)) { - frequency_alt = frequency_alt * pow(2, -440/frequency_alt/12/2); - } else { - frequency_alt = frequencies[voices - 2]; - } - } else { - frequency_alt = frequencies[voices - 2]; - } + float freq; - #ifdef VIBRATO_ENABLE - if (vibrato_strength > 0) { - freq_alt = vibrato(frequency_alt); - } else { - freq_alt = frequency_alt; - } - #else - freq_alt = frequency_alt; - #endif - } + if (playing_note) { + if (voices > 0) { + float freq_alt = 0; + if (voices > 1) { + if (polyphony_rate == 0) { + if (glissando) { + if (frequency_alt != 0 && frequency_alt < frequencies[voices - 2] && frequency_alt < frequencies[voices - 2] * pow(2, -440 / frequencies[voices - 2] / 12 / 2)) { + frequency_alt = frequency_alt * pow(2, 440 / frequency_alt / 12 / 2); + } else if (frequency_alt != 0 && frequency_alt > frequencies[voices - 2] && frequency_alt > frequencies[voices - 2] * pow(2, 440 / frequencies[voices - 2] / 12 / 2)) { + frequency_alt = frequency_alt * pow(2, -440 / frequency_alt / 12 / 2); + } else { + frequency_alt = frequencies[voices - 2]; + } + } else { + frequency_alt = frequencies[voices - 2]; + } - if (envelope_index < 65535) { - envelope_index++; - } +#ifdef VIBRATO_ENABLE + if (vibrato_strength > 0) { + freq_alt = vibrato(frequency_alt); + } else { + freq_alt = frequency_alt; + } +#else + freq_alt = frequency_alt; +#endif + } - freq_alt = voice_envelope(freq_alt); + if (envelope_index < 65535) { + envelope_index++; + } - if (freq_alt < 30.517578125) { - freq_alt = 30.52; - } + freq_alt = voice_envelope(freq_alt); - if (GET_CHANNEL_2_FREQ != (uint16_t)freq_alt) { - UPDATE_CHANNEL_2_FREQ(freq_alt); - } else { - RESTART_CHANNEL_2(); - } - //note_timbre; - } - - if (polyphony_rate > 0) { - if (voices > 1) { - voice_place %= voices; - if (place++ > (frequencies[voice_place] / polyphony_rate)) { - voice_place = (voice_place + 1) % voices; - place = 0.0; - } - } + if (freq_alt < 30.517578125) { + freq_alt = 30.52; + } - #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]; - } + if (GET_CHANNEL_2_FREQ != (uint16_t)freq_alt) { + UPDATE_CHANNEL_2_FREQ(freq_alt); + } else { + RESTART_CHANNEL_2(); + } + // note_timbre; + } - #ifdef VIBRATO_ENABLE - if (vibrato_strength > 0) { - freq = vibrato(frequency); - } else { - freq = frequency; - } - #else - freq = frequency; - #endif - } + if (polyphony_rate > 0) { + if (voices > 1) { + voice_place %= voices; + if (place++ > (frequencies[voice_place] / polyphony_rate)) { + voice_place = (voice_place + 1) % voices; + place = 0.0; + } + } - if (envelope_index < 65535) { - envelope_index++; - } +#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]; + } - freq = voice_envelope(freq); +#ifdef VIBRATO_ENABLE + if (vibrato_strength > 0) { + freq = vibrato(frequency); + } else { + freq = frequency; + } +#else + freq = frequency; +#endif + } - if (freq < 30.517578125) { - freq = 30.52; - } + if (envelope_index < 65535) { + envelope_index++; + } + freq = voice_envelope(freq); - if (GET_CHANNEL_1_FREQ != (uint16_t)freq) { - UPDATE_CHANNEL_1_FREQ(freq); - } else { - RESTART_CHANNEL_1(); - } - //note_timbre; - } - } + if (freq < 30.517578125) { + freq = 30.52; + } - if (playing_notes) { - if (note_frequency > 0) { - #ifdef VIBRATO_ENABLE - if (vibrato_strength > 0) { - freq = vibrato(note_frequency); - } else { - freq = note_frequency; + if (GET_CHANNEL_1_FREQ != (uint16_t)freq) { + UPDATE_CHANNEL_1_FREQ(freq); + } else { + RESTART_CHANNEL_1(); + } + // note_timbre; } - #else - freq = note_frequency; - #endif - - if (envelope_index < 65535) { - envelope_index++; - } - freq = voice_envelope(freq); - - - if (GET_CHANNEL_1_FREQ != (uint16_t)freq) { - UPDATE_CHANNEL_1_FREQ(freq); - UPDATE_CHANNEL_2_FREQ(freq); - } - //note_timbre; - } else { - // gptStopTimer(&GPTD6); - // gptStopTimer(&GPTD7); } - note_position++; - bool end_of_note = false; - if (GET_CHANNEL_1_FREQ > 0) { - if (!note_resting) - end_of_note = (note_position >= (note_length*8 - 1)); - else - end_of_note = (note_position >= (note_length*8)); - } else { - end_of_note = (note_position >= (note_length*8)); - } + 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 (end_of_note) { - current_note++; - if (current_note >= notes_count) { - if (notes_repeat) { - current_note = 0; + if (envelope_index < 65535) { + envelope_index++; + } + freq = voice_envelope(freq); + + if (GET_CHANNEL_1_FREQ != (uint16_t)freq) { + UPDATE_CHANNEL_1_FREQ(freq); + UPDATE_CHANNEL_2_FREQ(freq); + } + // note_timbre; } else { - STOP_CHANNEL_1(); - STOP_CHANNEL_2(); - // gptStopTimer(&GPTD8); - playing_notes = false; - return; + // gptStopTimer(&GPTD6); + // gptStopTimer(&GPTD7); } - } - if (!note_resting) { - note_resting = true; - current_note--; - if ((*notes_pointer)[current_note][0] == (*notes_pointer)[current_note + 1][0]) { - note_frequency = 0; - note_length = 1; + + note_position++; + bool end_of_note = false; + if (GET_CHANNEL_1_FREQ > 0) { + if (!note_resting) + end_of_note = (note_position >= (note_length * 8 - 1)); + else + end_of_note = (note_position >= (note_length * 8)); } else { - note_frequency = (*notes_pointer)[current_note][0]; - note_length = 1; + end_of_note = (note_position >= (note_length * 8)); } - } 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 (end_of_note) { + current_note++; + if (current_note >= notes_count) { + if (notes_repeat) { + current_note = 0; + } else { + STOP_CHANNEL_1(); + STOP_CHANNEL_2(); + // gptStopTimer(&GPTD8); + playing_notes = false; + return; + } + } + if (!note_resting) { + note_resting = true; + current_note--; + if ((*notes_pointer)[current_note][0] == (*notes_pointer)[current_note + 1][0]) { + note_frequency = 0; + note_length = 1; + } else { + note_frequency = (*notes_pointer)[current_note][0]; + note_length = 1; + } + } 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; - } + if (!audio_config.enable) { + playing_notes = false; + playing_note = false; + } } void play_note(float freq, int vol) { + dprintf("audio play note freq=%d vol=%d", (int)freq, vol); - dprintf("audio play note freq=%d vol=%d", (int)freq, vol); - - if (!audio_initialized) { - audio_init(); - } - - if (audio_config.enable && voices < 8) { - - // Cancel notes if notes are playing - if (playing_notes) { - stop_all_notes(); + if (!audio_initialized) { + audio_init(); } - playing_note = true; + if (audio_config.enable && voices < 8) { + // Cancel notes if notes are playing + if (playing_notes) { + stop_all_notes(); + } - envelope_index = 0; + playing_note = true; - if (freq > 0) { - frequencies[voices] = freq; - volumes[voices] = vol; - voices++; - } + envelope_index = 0; - gptStart(&GPTD8, &gpt8cfg1); - gptStartContinuous(&GPTD8, 2U); - RESTART_CHANNEL_1(); - RESTART_CHANNEL_2(); - } + if (freq > 0) { + frequencies[voices] = freq; + volumes[voices] = vol; + voices++; + } + gptStart(&GPTD8, &gpt8cfg1); + gptStartContinuous(&GPTD8, 2U); + RESTART_CHANNEL_1(); + RESTART_CHANNEL_2(); + } } void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat) { - - if (!audio_initialized) { - audio_init(); - } - - if (audio_config.enable) { - - // Cancel note if a note is playing - if (playing_note) { - stop_all_notes(); + if (!audio_initialized) { + audio_init(); } - playing_notes = true; + if (audio_config.enable) { + // Cancel note if a note is playing + if (playing_note) { + stop_all_notes(); + } - notes_pointer = np; - notes_count = n_count; - notes_repeat = n_repeat; + playing_notes = true; - place = 0; - current_note = 0; + notes_pointer = np; + notes_count = n_count; + notes_repeat = n_repeat; - note_frequency = (*notes_pointer)[current_note][0]; - note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100); - note_position = 0; + place = 0; + current_note = 0; - gptStart(&GPTD8, &gpt8cfg1); - gptStartContinuous(&GPTD8, 2U); - RESTART_CHANNEL_1(); - RESTART_CHANNEL_2(); - } -} + note_frequency = (*notes_pointer)[current_note][0]; + note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100); + note_position = 0; -bool is_playing_notes(void) { - return playing_notes; + gptStart(&GPTD8, &gpt8cfg1); + gptStartContinuous(&GPTD8, 2U); + RESTART_CHANNEL_1(); + RESTART_CHANNEL_2(); + } } -bool is_audio_on(void) { - return (audio_config.enable != 0); -} +bool is_playing_notes(void) { return playing_notes; } + +bool is_audio_on(void) { return (audio_config.enable != 0); } void audio_toggle(void) { - audio_config.enable ^= 1; - eeconfig_update_audio(audio_config.raw); - if (audio_config.enable) { - audio_on_user(); - } + audio_config.enable ^= 1; + eeconfig_update_audio(audio_config.raw); + if (audio_config.enable) { + audio_on_user(); + } } void audio_on(void) { - audio_config.enable = 1; - eeconfig_update_audio(audio_config.raw); - audio_on_user(); + audio_config.enable = 1; + eeconfig_update_audio(audio_config.raw); + audio_on_user(); } void audio_off(void) { - stop_all_notes(); - audio_config.enable = 0; - eeconfig_update_audio(audio_config.raw); + stop_all_notes(); + audio_config.enable = 0; + eeconfig_update_audio(audio_config.raw); } #ifdef VIBRATO_ENABLE // Vibrato rate functions -void set_vibrato_rate(float rate) { - vibrato_rate = rate; -} +void set_vibrato_rate(float rate) { vibrato_rate = rate; } -void increase_vibrato_rate(float change) { - vibrato_rate *= change; -} +void increase_vibrato_rate(float change) { vibrato_rate *= change; } -void decrease_vibrato_rate(float change) { - vibrato_rate /= change; -} +void decrease_vibrato_rate(float change) { vibrato_rate /= change; } -#ifdef VIBRATO_STRENGTH_ENABLE +# ifdef VIBRATO_STRENGTH_ENABLE -void set_vibrato_strength(float strength) { - vibrato_strength = strength; -} +void set_vibrato_strength(float strength) { vibrato_strength = strength; } -void increase_vibrato_strength(float change) { - vibrato_strength *= change; -} +void increase_vibrato_strength(float change) { vibrato_strength *= change; } -void decrease_vibrato_strength(float change) { - vibrato_strength /= change; -} +void decrease_vibrato_strength(float change) { vibrato_strength /= change; } -#endif /* VIBRATO_STRENGTH_ENABLE */ +# endif /* VIBRATO_STRENGTH_ENABLE */ #endif /* VIBRATO_ENABLE */ // Polyphony functions -void set_polyphony_rate(float rate) { - polyphony_rate = rate; -} +void set_polyphony_rate(float rate) { polyphony_rate = rate; } -void enable_polyphony() { - polyphony_rate = 5; -} +void enable_polyphony() { polyphony_rate = 5; } -void disable_polyphony() { - polyphony_rate = 0; -} +void disable_polyphony() { polyphony_rate = 0; } -void increase_polyphony_rate(float change) { - polyphony_rate *= change; -} +void increase_polyphony_rate(float change) { polyphony_rate *= change; } -void decrease_polyphony_rate(float change) { - polyphony_rate /= change; -} +void decrease_polyphony_rate(float change) { polyphony_rate /= change; } // Timbre function -void set_timbre(float timbre) { - note_timbre = timbre; -} +void set_timbre(float timbre) { note_timbre = timbre; } // Tempo functions -void set_tempo(uint8_t tempo) { - note_tempo = tempo; -} +void set_tempo(uint8_t tempo) { note_tempo = tempo; } -void decrease_tempo(uint8_t tempo_change) { - note_tempo += tempo_change; -} +void decrease_tempo(uint8_t tempo_change) { note_tempo += tempo_change; } void increase_tempo(uint8_t tempo_change) { - if (note_tempo - tempo_change < 10) { - note_tempo = 10; - } else { - note_tempo -= tempo_change; - } + if (note_tempo - tempo_change < 10) { + note_tempo = 10; + } else { + note_tempo -= tempo_change; + } } |