bool notes_repeat;
bool note_resting = false;
-uint8_t current_note = 0;
+uint16_t current_note = 0;
uint8_t rest_counter = 0;
#ifdef VIBRATO_ENABLE
#endif
float startup_song[][2] = STARTUP_SONG;
-static void gpt_cb6(GPTDriver *gptp);
-static void gpt_cb7(GPTDriver *gptp);
static void gpt_cb8(GPTDriver *gptp);
+#define DAC_BUFFER_SIZE 100
+#ifndef DAC_SAMPLE_MAX
+#define DAC_SAMPLE_MAX 65535U
+#endif
+
+#define START_CHANNEL_1() gptStart(&GPTD6, &gpt6cfg1); \
+ gptStartContinuous(&GPTD6, 2U)
+#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(); \
+ START_CHANNEL_1()
+#define RESTART_CHANNEL_2() STOP_CHANNEL_2(); \
+ START_CHANNEL_2()
+#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; \
+ 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.
*/
+// static const GPTConfig gpt6cfg1 = {
+// .frequency = 1000000U,
+// .callback = NULL,
+// .cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */
+// .dier = 0U
+// };
+
GPTConfig gpt6cfg1 = {
- .frequency = 440,
- .callback = gpt_cb6,
+ .frequency = 440U*DAC_BUFFER_SIZE,
+ .callback = NULL,
.cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */
.dier = 0U
};
GPTConfig gpt7cfg1 = {
- .frequency = 440,
- .callback = gpt_cb7,
+ .frequency = 440U*DAC_BUFFER_SIZE,
+ .callback = NULL,
.cr2 = TIM_CR2_MMS_1, /* MMS = 010 = TRGO on Update Event. */
.dier = 0U
};
.dier = 0U
};
-static void gpt_cb6(GPTDriver *gptp) {
- palTogglePad(GPIOA, 4);
-}
+/*
+ * DAC test buffer (sine wave).
+ */
+// static const dacsample_t dac_buffer[DAC_BUFFER_SIZE] = {
+// 2047, 2082, 2118, 2154, 2189, 2225, 2260, 2296, 2331, 2367, 2402, 2437,
+// 2472, 2507, 2542, 2576, 2611, 2645, 2679, 2713, 2747, 2780, 2813, 2846,
+// 2879, 2912, 2944, 2976, 3008, 3039, 3070, 3101, 3131, 3161, 3191, 3221,
+// 3250, 3278, 3307, 3335, 3362, 3389, 3416, 3443, 3468, 3494, 3519, 3544,
+// 3568, 3591, 3615, 3637, 3660, 3681, 3703, 3723, 3744, 3763, 3782, 3801,
+// 3819, 3837, 3854, 3870, 3886, 3902, 3917, 3931, 3944, 3958, 3970, 3982,
+// 3993, 4004, 4014, 4024, 4033, 4041, 4049, 4056, 4062, 4068, 4074, 4078,
+// 4082, 4086, 4089, 4091, 4092, 4093, 4094, 4093, 4092, 4091, 4089, 4086,
+// 4082, 4078, 4074, 4068, 4062, 4056, 4049, 4041, 4033, 4024, 4014, 4004,
+// 3993, 3982, 3970, 3958, 3944, 3931, 3917, 3902, 3886, 3870, 3854, 3837,
+// 3819, 3801, 3782, 3763, 3744, 3723, 3703, 3681, 3660, 3637, 3615, 3591,
+// 3568, 3544, 3519, 3494, 3468, 3443, 3416, 3389, 3362, 3335, 3307, 3278,
+// 3250, 3221, 3191, 3161, 3131, 3101, 3070, 3039, 3008, 2976, 2944, 2912,
+// 2879, 2846, 2813, 2780, 2747, 2713, 2679, 2645, 2611, 2576, 2542, 2507,
+// 2472, 2437, 2402, 2367, 2331, 2296, 2260, 2225, 2189, 2154, 2118, 2082,
+// 2047, 2012, 1976, 1940, 1905, 1869, 1834, 1798, 1763, 1727, 1692, 1657,
+// 1622, 1587, 1552, 1518, 1483, 1449, 1415, 1381, 1347, 1314, 1281, 1248,
+// 1215, 1182, 1150, 1118, 1086, 1055, 1024, 993, 963, 933, 903, 873,
+// 844, 816, 787, 759, 732, 705, 678, 651, 626, 600, 575, 550,
+// 526, 503, 479, 457, 434, 413, 391, 371, 350, 331, 312, 293,
+// 275, 257, 240, 224, 208, 192, 177, 163, 150, 136, 124, 112,
+// 101, 90, 80, 70, 61, 53, 45, 38, 32, 26, 20, 16,
+// 12, 8, 5, 3, 2, 1, 0, 1, 2, 3, 5, 8,
+// 12, 16, 20, 26, 32, 38, 45, 53, 61, 70, 80, 90,
+// 101, 112, 124, 136, 150, 163, 177, 192, 208, 224, 240, 257,
+// 275, 293, 312, 331, 350, 371, 391, 413, 434, 457, 479, 503,
+// 526, 550, 575, 600, 626, 651, 678, 705, 732, 759, 787, 816,
+// 844, 873, 903, 933, 963, 993, 1024, 1055, 1086, 1118, 1150, 1182,
+// 1215, 1248, 1281, 1314, 1347, 1381, 1415, 1449, 1483, 1518, 1552, 1587,
+// 1622, 1657, 1692, 1727, 1763, 1798, 1834, 1869, 1905, 1940, 1976, 2012
+// };
+
+// static const dacsample_t dac_buffer_2[DAC_BUFFER_SIZE] = {
+// 12, 8, 5, 3, 2, 1, 0, 1, 2, 3, 5, 8,
+// 12, 16, 20, 26, 32, 38, 45, 53, 61, 70, 80, 90,
+// 101, 112, 124, 136, 150, 163, 177, 192, 208, 224, 240, 257,
+// 275, 293, 312, 331, 350, 371, 391, 413, 434, 457, 479, 503,
+// 526, 550, 575, 600, 626, 651, 678, 705, 732, 759, 787, 816,
+// 844, 873, 903, 933, 963, 993, 1024, 1055, 1086, 1118, 1150, 1182,
+// 1215, 1248, 1281, 1314, 1347, 1381, 1415, 1449, 1483, 1518, 1552, 1587,
+// 1622, 1657, 1692, 1727, 1763, 1798, 1834, 1869, 1905, 1940, 1976, 2012,
+// 2047, 2082, 2118, 2154, 2189, 2225, 2260, 2296, 2331, 2367, 2402, 2437,
+// 2472, 2507, 2542, 2576, 2611, 2645, 2679, 2713, 2747, 2780, 2813, 2846,
+// 2879, 2912, 2944, 2976, 3008, 3039, 3070, 3101, 3131, 3161, 3191, 3221,
+// 3250, 3278, 3307, 3335, 3362, 3389, 3416, 3443, 3468, 3494, 3519, 3544,
+// 3568, 3591, 3615, 3637, 3660, 3681, 3703, 3723, 3744, 3763, 3782, 3801,
+// 3819, 3837, 3854, 3870, 3886, 3902, 3917, 3931, 3944, 3958, 3970, 3982,
+// 3993, 4004, 4014, 4024, 4033, 4041, 4049, 4056, 4062, 4068, 4074, 4078,
+// 4082, 4086, 4089, 4091, 4092, 4093, 4094, 4093, 4092, 4091, 4089, 4086,
+// 4082, 4078, 4074, 4068, 4062, 4056, 4049, 4041, 4033, 4024, 4014, 4004,
+// 3993, 3982, 3970, 3958, 3944, 3931, 3917, 3902, 3886, 3870, 3854, 3837,
+// 3819, 3801, 3782, 3763, 3744, 3723, 3703, 3681, 3660, 3637, 3615, 3591,
+// 3568, 3544, 3519, 3494, 3468, 3443, 3416, 3389, 3362, 3335, 3307, 3278,
+// 3250, 3221, 3191, 3161, 3131, 3101, 3070, 3039, 3008, 2976, 2944, 2912,
+// 2879, 2846, 2813, 2780, 2747, 2713, 2679, 2645, 2611, 2576, 2542, 2507,
+// 2472, 2437, 2402, 2367, 2331, 2296, 2260, 2225, 2189, 2154, 2118, 2082,
+// 2047, 2012, 1976, 1940, 1905, 1869, 1834, 1798, 1763, 1727, 1692, 1657,
+// 1622, 1587, 1552, 1518, 1483, 1449, 1415, 1381, 1347, 1314, 1281, 1248,
+// 1215, 1182, 1150, 1118, 1086, 1055, 1024, 993, 963, 933, 903, 873,
+// 844, 816, 787, 759, 732, 705, 678, 651, 626, 600, 575, 550,
+// 526, 503, 479, 457, 434, 413, 391, 371, 350, 331, 312, 293,
+// 275, 257, 240, 224, 208, 192, 177, 163, 150, 136, 124, 112,
+// 101, 90, 80, 70, 61, 53, 45, 38, 32, 26, 20, 16
+// };
+
+// 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,
+};
-static void gpt_cb7(GPTDriver *gptp) {
- palTogglePad(GPIOA, 5);
-}
+// 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,
+};
-void audio_init()
-{
+/*
+ * DAC streaming callback.
+ */
+size_t nx = 0, ny = 0, nz = 0;
+static void end_cb1(DACDriver *dacp, dacsample_t *buffer, size_t n) {
- if (audio_initialized)
- return;
+ (void)dacp;
- // Check EEPROM
- // if (!eeconfig_is_enabled())
- // {
- // eeconfig_init();
- // }
- // audio_config.raw = eeconfig_read_audio();
- audio_config.enable = true;
+ nz++;
+ if (dac_buffer == buffer) {
+ nx += n;
+ }
+ else {
+ ny += n;
+ }
- palSetPadMode(GPIOA, 4, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPadMode(GPIOA, 5, PAL_MODE_OUTPUT_PUSHPULL);
+ if ((nz % 1000) == 0) {
+ // palTogglePad(GPIOD, GPIOD_LED3);
+ }
+}
- audio_initialized = true;
+/*
+ * DAC error callback.
+ */
+static void error_cb1(DACDriver *dacp, dacerror_t err) {
- if (audio_config.enable) {
- PLAY_SONG(startup_song);
- }
+ (void)dacp;
+ (void)err;
+ chSysHalt("DAC failure");
}
-void stop_all_notes()
-{
+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 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)
+};
+
+void audio_init() {
+
+ if (audio_initialized) {
+ return;
+ }
+
+ // Check EEPROM
+ #if defined(STM32_EEPROM_ENABLE) || defined(PROTOCOL_ARM_ATSAM) || defined(EEPROM_SIZE)
+ if (!eeconfig_is_enabled()) {
+ eeconfig_init();
+ }
+ audio_config.raw = eeconfig_read_audio();
+#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();
+ }
+
+}
+
+void stop_all_notes() {
dprintf("audio stop all notes");
if (!audio_initialized) {
}
}
-void stop_note(float freq)
-{
- dprintf("audio stop note freq=%d", (int)freq);
+void stop_note(float 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;
- }
- break;
- }
- }
- voices--;
- if (voices < 0)
- voices = 0;
- if (voice_place >= voices) {
- voice_place = 0;
- }
- if (voices == 0) {
- gptStopTimer(&GPTD6);
- gptStopTimer(&GPTD7);
- gptStopTimer(&GPTD8);
- frequency = 0;
- frequency_alt = 0;
- volume = 0;
- playing_note = false;
+ 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;
+ }
+ }
}
#ifdef VIBRATO_ENABLE
-float mod(float a, int b)
-{
- float r = fmod(a, b);
- return r < 0 ? r + b : r;
+float mod(float a, int b) {
+ float r = fmod(a, b);
+ return r < 0 ? r + b : r;
}
float vibrato(float average_freq) {
- #ifdef VIBRATO_STRENGTH_ENABLE
- float vibrated_freq = average_freq * pow(vibrato_lut[(int)vibrato_counter], vibrato_strength);
- #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;
+ #ifdef VIBRATO_STRENGTH_ENABLE
+ float vibrated_freq = average_freq * pow(vibrato_lut[(int)vibrato_counter], vibrato_strength);
+ #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
-static void restart_gpt6(void) {
- // gptStopTimer(&GPTD6);
-
- gptStart(&GPTD6, &gpt6cfg1);
- gptStartContinuous(&GPTD6, 2U);
-}
-
-static void restart_gpt7(void) {
- // gptStopTimer(&GPTD7);
-
- gptStart(&GPTD7, &gpt7cfg1);
- gptStartContinuous(&GPTD7, 2U);
-}
-
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];
- }
-
- #ifdef VIBRATO_ENABLE
- if (vibrato_strength > 0) {
- freq_alt = vibrato(frequency_alt);
- } else {
- freq_alt = frequency_alt;
- }
- #else
- freq_alt = frequency_alt;
- #endif
- }
-
- if (envelope_index < 65535) {
- envelope_index++;
- }
-
- freq_alt = voice_envelope(freq_alt);
-
- if (freq_alt < 30.517578125) {
- freq_alt = 30.52;
- }
-
- if (gpt6cfg1.frequency != (uint16_t)freq_alt) {
- gpt6cfg1.frequency = freq_alt;
- restart_gpt6();
- }
- //note_timbre;
- } else {
- // gptStopTimer(&GPTD6);
- }
-
- 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;
- }
- }
-
- #ifdef VIBRATO_ENABLE
- if (vibrato_strength > 0) {
- freq = vibrato(frequencies[voice_place]);
- } else {
- freq = frequencies[voice_place];
- }
- #else
- freq = frequencies[voice_place];
- #endif
+ 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 {
- 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
+ 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 = voice_envelope(freq);
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
- if (freq < 30.517578125) {
- freq = 30.52;
- }
+ freq_alt = voice_envelope(freq_alt);
+ if (freq_alt < 30.517578125) {
+ freq_alt = 30.52;
+ }
- if (gpt7cfg1.frequency != (uint16_t)freq) {
- gpt7cfg1.frequency = freq;
- restart_gpt7();
- }
- //note_timbre;
+ if (GET_CHANNEL_2_FREQ != (uint16_t)freq_alt) {
+ UPDATE_CHANNEL_2_FREQ(freq_alt);
} else {
- // gptStopTimer(&GPTD7);
+ 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 (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);
-
- if (gpt6cfg1.frequency != (uint16_t)freq) {
- gpt6cfg1.frequency = freq;
- restart_gpt6();
- gpt7cfg1.frequency = freq;
- restart_gpt7();
- }
- //note_timbre;
+ #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 {
- // gptStopTimer(&GPTD6);
- // gptStopTimer(&GPTD7);
+ frequency = frequencies[voices - 1];
}
- note_position++;
- bool end_of_note = false;
- if (gpt6cfg1.frequency > 0) {
- if (!note_resting)
- end_of_note = (note_position >= (note_length*16 - 1));
- else
- end_of_note = (note_position >= (note_length*16));
+ #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;
+ }
+
+
+ if (GET_CHANNEL_1_FREQ != (uint16_t)freq) {
+ UPDATE_CHANNEL_1_FREQ(freq);
+ } else {
+ RESTART_CHANNEL_1();
+ }
+ //note_timbre;
+ }
+ }
+
+ if (playing_notes) {
+ if (note_frequency > 0) {
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(note_frequency);
} else {
- end_of_note = (note_position >= (note_length*16));
+ 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;
- } else {
- gptStopTimer(&GPTD6);
- gptStopTimer(&GPTD7);
- // 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);
- }
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+ freq = voice_envelope(freq);
- note_position = 0;
- }
- }
- if (!audio_config.enable) {
- playing_notes = false;
- playing_note = false;
+ 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);
}
-}
-void play_note(float freq, int vol) {
+ 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));
+ }
- dprintf("audio play note freq=%d vol=%d", (int)freq, vol);
+ 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);
+ }
- if (!audio_initialized) {
- audio_init();
+ note_position = 0;
}
+ }
- if (audio_config.enable && voices < 8) {
+ if (!audio_config.enable) {
+ playing_notes = false;
+ playing_note = false;
+ }
+}
- // Cancel notes if notes are playing
- if (playing_notes)
- stop_all_notes();
+void play_note(float freq, int vol) {
- playing_note = true;
+ dprintf("audio play note freq=%d vol=%d", (int)freq, vol);
- envelope_index = 0;
+ if (!audio_initialized) {
+ audio_init();
+ }
- if (freq > 0) {
- frequencies[voices] = freq;
- volumes[voices] = vol;
- voices++;
- }
+ if (audio_config.enable && voices < 8) {
- gptStart(&GPTD8, &gpt8cfg1);
- gptStartContinuous(&GPTD8, 2U);
-
+ // Cancel notes if notes are playing
+ if (playing_notes) {
+ stop_all_notes();
}
-}
+ playing_note = true;
-void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat)
-{
+ envelope_index = 0;
- if (!audio_initialized) {
- audio_init();
+ if (freq > 0) {
+ frequencies[voices] = freq;
+ volumes[voices] = vol;
+ voices++;
}
- if (audio_config.enable) {
+ gptStart(&GPTD8, &gpt8cfg1);
+ gptStartContinuous(&GPTD8, 2U);
+ RESTART_CHANNEL_1();
+ RESTART_CHANNEL_2();
+ }
- // Cancel note if a note is playing
- if (playing_note)
- stop_all_notes();
-
- playing_notes = true;
+}
- notes_pointer = np;
- notes_count = n_count;
- notes_repeat = n_repeat;
+void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat) {
- place = 0;
- current_note = 0;
+ if (!audio_initialized) {
+ audio_init();
+ }
- 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) {
- gptStart(&GPTD8, &gpt8cfg1);
- gptStartContinuous(&GPTD8, 2U);
- restart_gpt6();
- restart_gpt7();
+ // Cancel note if a note is playing
+ if (playing_note) {
+ stop_all_notes();
}
+ playing_notes = true;
+
+ notes_pointer = np;
+ notes_count = n_count;
+ notes_repeat = n_repeat;
+
+ place = 0;
+ current_note = 0;
+
+ note_frequency = (*notes_pointer)[current_note][0];
+ note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
+ note_position = 0;
+
+ gptStart(&GPTD8, &gpt8cfg1);
+ gptStartContinuous(&GPTD8, 2U);
+ RESTART_CHANNEL_1();
+ RESTART_CHANNEL_2();
+ }
}
bool is_playing_notes(void) {
- return playing_notes;
+ return playing_notes;
}
bool is_audio_on(void) {
- return (audio_config.enable != 0);
+ 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) {
- 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;
+ vibrato_rate = rate;
}
void increase_vibrato_rate(float change) {
- vibrato_rate *= change;
+ vibrato_rate *= change;
}
void decrease_vibrato_rate(float change) {
- vibrato_rate /= change;
+ vibrato_rate /= change;
}
#ifdef VIBRATO_STRENGTH_ENABLE
void set_vibrato_strength(float strength) {
- vibrato_strength = strength;
+ vibrato_strength = strength;
}
void increase_vibrato_strength(float change) {
- vibrato_strength *= change;
+ vibrato_strength *= change;
}
void decrease_vibrato_strength(float change) {
- vibrato_strength /= change;
+ vibrato_strength /= change;
}
#endif /* VIBRATO_STRENGTH_ENABLE */
// Polyphony functions
void set_polyphony_rate(float rate) {
- polyphony_rate = rate;
+ polyphony_rate = rate;
}
void enable_polyphony() {
- polyphony_rate = 5;
+ polyphony_rate = 5;
}
void disable_polyphony() {
- polyphony_rate = 0;
+ polyphony_rate = 0;
}
void increase_polyphony_rate(float change) {
- polyphony_rate *= change;
+ polyphony_rate *= change;
}
void decrease_polyphony_rate(float change) {
- polyphony_rate /= change;
+ polyphony_rate /= change;
}
// Timbre function
void set_timbre(float timbre) {
- note_timbre = timbre;
+ note_timbre = timbre;
}
// Tempo functions
void set_tempo(uint8_t tempo) {
- note_tempo = tempo;
+ note_tempo = tempo;
}
void decrease_tempo(uint8_t tempo_change) {
- note_tempo += 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;
+ }
}
projects / qmk_firmware.git / blobdiff