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-rw-r--r--quantum/audio/audio_arm.c280
1 files changed, 230 insertions, 50 deletions
diff --git a/quantum/audio/audio_arm.c b/quantum/audio/audio_arm.c
index 43c8d67c4..247dc337d 100644
--- a/quantum/audio/audio_arm.c
+++ b/quantum/audio/audio_arm.c
@@ -77,23 +77,48 @@ bool glissando = true;
#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 360
+
+#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 gpt6cfg1.frequency
+#define GET_CHANNEL_2_FREQ gpt7cfg1.frequency
+
+
/*
* 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
};
@@ -105,15 +130,169 @@ GPTConfig gpt8cfg1 = {
.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
+// };
+
+// squarewave
+static const dacsample_t dac_buffer[DAC_BUFFER_SIZE] = {
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+// squarewave
+static const dacsample_t dac_buffer_2[DAC_BUFFER_SIZE] = {
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+ 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+/*
+ * DAC streaming callback.
+ */
+size_t nx = 0, ny = 0, nz = 0;
+static void end_cb1(DACDriver *dacp, dacsample_t *buffer, size_t n) {
+
+ (void)dacp;
+
+ nz++;
+ if (dac_buffer == buffer) {
+ nx += n;
+ }
+ else {
+ ny += n;
+ }
+
+ if ((nz % 1000) == 0) {
+ // palTogglePad(GPIOD, GPIOD_LED3);
+ }
}
+/*
+ * DAC error callback.
+ */
+static void error_cb1(DACDriver *dacp, dacerror_t err) {
+
+ (void)dacp;
+ (void)err;
-static void gpt_cb7(GPTDriver *gptp) {
- palTogglePad(GPIOA, 5);
+ chSysHalt("DAC failure");
}
+static const DACConfig dac1cfg1 = {
+ .init = 2047U,
+ .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 = 2047U,
+ .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()
{
@@ -128,8 +307,30 @@ void audio_init()
// audio_config.raw = eeconfig_read_audio();
audio_config.enable = true;
- palSetPadMode(GPIOA, 4, PAL_MODE_OUTPUT_PUSHPULL);
- palSetPadMode(GPIOA, 5, PAL_MODE_OUTPUT_PUSHPULL);
+ /*
+ * 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 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);
+ // gptStartContinuous(&GPTD6, 2U);
+
audio_initialized = true;
@@ -193,8 +394,8 @@ void stop_note(float freq)
voice_place = 0;
}
if (voices == 0) {
- gptStopTimer(&GPTD6);
- gptStopTimer(&GPTD7);
+ STOP_CHANNEL_1();
+ STOP_CHANNEL_2();
gptStopTimer(&GPTD8);
frequency = 0;
frequency_alt = 0;
@@ -224,20 +425,6 @@ float vibrato(float average_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;
@@ -280,13 +467,10 @@ static void gpt_cb8(GPTDriver *gptp) {
freq_alt = 30.52;
}
- if (gpt6cfg1.frequency != (uint16_t)freq_alt) {
- gpt6cfg1.frequency = freq_alt;
- restart_gpt6();
+ if (GET_CHANNEL_2_FREQ != (uint16_t)freq_alt) {
+ UPDATE_CHANNEL_2_FREQ(freq_alt);
}
//note_timbre;
- } else {
- // gptStopTimer(&GPTD6);
}
if (polyphony_rate > 0) {
@@ -342,13 +526,10 @@ static void gpt_cb8(GPTDriver *gptp) {
}
- if (gpt7cfg1.frequency != (uint16_t)freq) {
- gpt7cfg1.frequency = freq;
- restart_gpt7();
+ if (GET_CHANNEL_1_FREQ != (uint16_t)freq) {
+ UPDATE_CHANNEL_1_FREQ(freq);
}
//note_timbre;
- } else {
- // gptStopTimer(&GPTD7);
}
}
@@ -370,11 +551,9 @@ static void gpt_cb8(GPTDriver *gptp) {
freq = voice_envelope(freq);
- if (gpt6cfg1.frequency != (uint16_t)freq) {
- gpt6cfg1.frequency = freq;
- restart_gpt6();
- gpt7cfg1.frequency = freq;
- restart_gpt7();
+ if (GET_CHANNEL_1_FREQ != (uint16_t)freq) {
+ UPDATE_CHANNEL_1_FREQ(freq);
+ UPDATE_CHANNEL_2_FREQ(freq);
}
//note_timbre;
} else {
@@ -384,8 +563,8 @@ static void gpt_cb8(GPTDriver *gptp) {
note_position++;
bool end_of_note = false;
- if (gpt6cfg1.frequency > 0) {
- if (!note_resting)
+ if (GET_CHANNEL_1_FREQ > 0) {
+ if (!note_resting)
end_of_note = (note_position >= (note_length*16 - 1));
else
end_of_note = (note_position >= (note_length*16));
@@ -399,8 +578,8 @@ static void gpt_cb8(GPTDriver *gptp) {
if (notes_repeat) {
current_note = 0;
} else {
- gptStopTimer(&GPTD6);
- gptStopTimer(&GPTD7);
+ STOP_CHANNEL_1();
+ STOP_CHANNEL_2();
// gptStopTimer(&GPTD8);
playing_notes = false;
return;
@@ -459,7 +638,8 @@ void play_note(float freq, int vol) {
gptStart(&GPTD8, &gpt8cfg1);
gptStartContinuous(&GPTD8, 2U);
-
+ RESTART_CHANNEL_1();
+ RESTART_CHANNEL_2();
}
}
@@ -492,8 +672,8 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat)
gptStart(&GPTD8, &gpt8cfg1);
gptStartContinuous(&GPTD8, 2U);
- restart_gpt6();
- restart_gpt7();
+ RESTART_CHANNEL_1();
+ RESTART_CHANNEL_2();
}
}
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