muse working with encoder as control

keyboards/planck/keymaps/default/keymap.c

@@ -16,6 +16,7 @@
 
 #include "planck.h"
 #include "action_layer.h"
+#include "muse.h"
 
 extern keymap_config_t keymap_config;
 
@@ -267,20 +268,42 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
   return true;
 }
 
-void encoder_update(bool direction) {
-  if (direction) {
-    register_code(KC_PGUP);
-    unregister_code(KC_PGUP);
+bool muse_mode = false;
+uint8_t last_muse_note = 0;
+uint16_t muse_counter = 0;
+uint8_t muse_offset = 70;
+uint16_t muse_tempo = 50;
+
+void encoder_update(bool clockwise) {
+  if (muse_mode) {
+    if (IS_LAYER_ON(_RAISE)) {
+      if (clockwise) {
+        muse_offset++;
+      } else {
+        muse_offset--;
+      }
+    } else {
+      if (clockwise) {
+        muse_tempo+=1;
+      } else {
+        muse_tempo-=1;
+      }
+    }
   } else {
-    register_code(KC_PGDN);
-    unregister_code(KC_PGDN);
+    if (clockwise) {
+      register_code(KC_PGUP);
+      unregister_code(KC_PGUP);
+    } else {
+      register_code(KC_PGDN);
+      unregister_code(KC_PGDN);
+    }
   }
 }
 
-void dip_update(uint8_t index, bool value) {
+void dip_update(uint8_t index, bool active) {
   switch (index) {
     case 0:
-      if (value) {
+      if (active) {
         #ifdef AUDIO_ENABLE
           PLAY_SONG(plover_song);
         #endif
@@ -292,5 +315,35 @@ void dip_update(uint8_t index, bool value) {
         layer_off(_ADJUST);
       }
       break;
+    case 1:
+      if (active) {
+        muse_mode = true;
+      } else {
+        muse_mode = false;
+        stop_all_notes();
+      }
+   }
+}
+
+void matrix_init_user(void) {
+  palSetPadMode(GPIOB, 5, PAL_MODE_OUTPUT_PUSHPULL);
+}
+
+void matrix_scan_user(void) {
+  if (muse_mode) {
+    if (muse_counter == 0) {
+      uint8_t muse_note = muse_offset + SCALE[muse_clock_pulse()];
+      if (muse_note != last_muse_note) {
+        stop_note(compute_freq_for_midi_note(last_muse_note));
+        play_note(compute_freq_for_midi_note(muse_note), 0xF);
+        last_muse_note = muse_note;
+      }
+    }
+    if (muse_counter > (muse_tempo / 2)) {
+      palSetPad(GPIOB, 5);
+    } else {
+      palClearPad(GPIOB, 5);
+    }
+    muse_counter = (muse_counter + 1) % muse_tempo;
   }
 }

keyboards/planck/keymaps/default/rules.mk

@@ -0,0 +1 @@
+SRC += muse.c

keyboards/planck/rev6/matrix.c

@@ -85,10 +85,10 @@ void matrix_init(void) {
 }
 
 __attribute__ ((weak))
-void dip_update(uint8_t index, bool value) { }
+void dip_update(uint8_t index, bool active) { }
 
 __attribute__ ((weak))
-void encoder_update(bool direction) { }
+void encoder_update(bool clockwise) { }
 
 bool last_dip_switch[4] = {0};
 
@@ -98,10 +98,10 @@ bool last_dip_switch[4] = {0};
 
 uint8_t matrix_scan(void) {
     // dip switch
-    dip_switch[0] = palReadPad(GPIOB, 14);
-    dip_switch[1] = palReadPad(GPIOA, 15);
-    dip_switch[2] = palReadPad(GPIOA, 10);
-    dip_switch[3] = palReadPad(GPIOB, 9);
+    dip_switch[0] = !palReadPad(GPIOB, 14);
+    dip_switch[1] = !palReadPad(GPIOA, 15);
+    dip_switch[2] = !palReadPad(GPIOA, 10);
+    dip_switch[3] = !palReadPad(GPIOB, 9);
     for (uint8_t i = 0; i < 4; i++) {
       if (last_dip_switch[i] ^ dip_switch[i])
         dip_update(i, dip_switch[i]);
@@ -113,11 +113,11 @@ uint8_t matrix_scan(void) {
     encoder_state |= (palReadPad(GPIOB, 12) << 0) | (palReadPad(GPIOB, 13) << 1);
     encoder_value += encoder_LUT[encoder_state & 0xF];
     if (encoder_value >= ENCODER_RESOLUTION) {
-        encoder_update(1);
-    }
-    if (encoder_value <= -ENCODER_RESOLUTION) {
         encoder_update(0);
     }
+    if (encoder_value <= -ENCODER_RESOLUTION) { // direction is arbitrary here, but this clockwise
+        encoder_update(1);
+    }
     encoder_value %= ENCODER_RESOLUTION;
 
     // actual matrix

quantum/audio/audio_arm.c

@@ -79,7 +79,7 @@ float startup_song[][2] = STARTUP_SONG;
 
 static void gpt_cb8(GPTDriver *gptp);
 
-#define DAC_BUFFER_SIZE 360
+#define DAC_BUFFER_SIZE 720
 
 #define START_CHANNEL_1() gptStart(&GPTD6, &gpt6cfg1); \
     gptStartContinuous(&GPTD6, 2U)
@@ -167,6 +167,39 @@ GPTConfig gpt8cfg1 = {
 //   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] = {
   2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
@@ -184,6 +217,21 @@ 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,
+  2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+  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,
@@ -199,11 +247,42 @@ static const dacsample_t dac_buffer[DAC_BUFFER_SIZE] = {
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0,
   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+    0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0,
+  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] = {
+
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
+    0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,   0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
+   0,  0,  0,  0,  0,  0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
   0, 0, 0, 0, 0, 0, 0,  0,  0,  0,  0,  0,
@@ -233,8 +312,22 @@ 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,
+  2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+  2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
+  2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047,
   2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047, 2047
-
 };
 
 /*

quantum/audio/muse.c

@@ -1,3 +1,4 @@
+#include "muse.h"
 
 enum {
   MUSE_OFF,
@@ -47,14 +48,14 @@ bool number_of_ones_to_bool[16] = {
   0, 1, 1, 0, 1, 0, 0, 1
 };
 
-uint8_t muse_interval[4] = {0};
-uint8_t muse_theme[4] = {0};
+uint8_t muse_interval[4] = {MUSE_B7,  MUSE_B19, MUSE_B3,  MUSE_B28};
+uint8_t muse_theme[4]    = {MUSE_B8, MUSE_B23, MUSE_B18, MUSE_B17};
 
-bool timer_1bit = 0;
-uint8_t timer_2bit = 0;
-uint8_t timer_2bit_counter = 0;
-uint8_t timer_4bit = 0;
-uint32_t timer_31bit = 0;
+bool muse_timer_1bit = 0;
+uint8_t muse_timer_2bit = 0;
+uint8_t muse_timer_2bit_counter = 0;
+uint8_t muse_timer_4bit = 0;
+uint32_t muse_timer_31bit = 0;
 
 bool bit_for_value(uint8_t value) {
   switch (value) {
@@ -63,48 +64,48 @@ bool bit_for_value(uint8_t value) {
     case MUSE_ON:
       return 1;
     case MUSE_C_1_2:
-      return timer_1bit;
+      return muse_timer_1bit;
     case MUSE_C1:
-      return (timer_4bit & 1);
+      return (muse_timer_4bit & 1);
     case MUSE_C2:
-      return (timer_4bit & 2);
+      return (muse_timer_4bit & 2);
     case MUSE_C4:
-      return (timer_4bit & 4);
+      return (muse_timer_4bit & 4);
     case MUSE_C8:
-      return (timer_4bit & 8);
+      return (muse_timer_4bit & 8);
     case MUSE_C3:
-      return (timer_2bit & 1);
+      return (muse_timer_2bit & 1);
     case MUSE_C6:
-      return (timer_2bit & 2);
+      return (muse_timer_2bit & 2);
     default:
-      return timer_31bit & (1UL << (value - MUSE_B1));
+      return muse_timer_31bit & (1UL << (value - MUSE_B1));
   }
 }
 
-uint8_t clock_pulse() {
+uint8_t muse_clock_pulse(void) {
 
   bool top = number_of_ones_to_bool[
     bit_for_value(muse_theme[0]) +
-    bit_for_value(muse_theme[1]) << 1 +
-    bit_for_value(muse_theme[2]) << 2 +
-    bit_for_value(muse_theme[3]) << 3
+    (bit_for_value(muse_theme[1]) << 1) +
+    (bit_for_value(muse_theme[2]) << 2) +
+    (bit_for_value(muse_theme[3]) << 3)
   ];
 
-  if (timer_1bit == 0) {
-    if (timer_2bit_counter == 0) {
-      timer_2bit = (timer_2bit + 1) % 4;
-      timer_2bit_counter = (timer_2bit_counter + 1) % 3;
+  if (muse_timer_1bit == 0) {
+    if (muse_timer_2bit_counter == 0) {
+      muse_timer_2bit = (muse_timer_2bit + 1) % 4;
     }
-    timer_4bit = (timer_4bit + 1) % 16;
-    timer_31bit = (timer_31bit << 1) + top;
+    muse_timer_2bit_counter = (muse_timer_2bit_counter + 1) % 3;
+    muse_timer_4bit = (muse_timer_4bit + 1) % 16;
+    muse_timer_31bit = (muse_timer_31bit << 1) + top;
   }
 
-  timer_1bit = (timer_1bit + 1) % 2;
+  muse_timer_1bit = (muse_timer_1bit + 1) % 2;
 
   return
     bit_for_value(muse_interval[0]) +
-    bit_for_value(muse_interval[1]) << 1 +
-    bit_for_value(muse_interval[2]) << 2 +
-    bit_for_value(muse_interval[3]) << 3;
+    (bit_for_value(muse_interval[1]) << 1) +
+    (bit_for_value(muse_interval[2]) << 2) +
+    (bit_for_value(muse_interval[3]) << 3);
 
 }

quantum/audio/muse.h

@@ -0,0 +1,9 @@
+#ifndef MUSE_H
+#define MUSE_H
+
+#include "quantum.h"
+#include "process_audio.h"
+
+uint8_t muse_clock_pulse(void);
+
+#endif

quantum/process_keycode/process_audio.c

@@ -10,7 +10,7 @@ float voice_change_song[][2] = VOICE_CHANGE_SONG;
     #define PITCH_STANDARD_A 440.0f
 #endif
 
-static float compute_freq_for_midi_note(uint8_t note)
+float compute_freq_for_midi_note(uint8_t note)
 {
     // https://en.wikipedia.org/wiki/MIDI_tuning_standard
     return pow(2.0, (note - 69) / 12.0) * PITCH_STANDARD_A;
@@ -65,4 +65,4 @@ void process_audio_all_notes_off(void) {
 }
 
 __attribute__ ((weak))
-void audio_on_user() {}
+void audio_on_user() {}

quantum/process_keycode/process_audio.h

@@ -1,6 +1,8 @@
 #ifndef PROCESS_AUDIO_H
 #define PROCESS_AUDIO_H
 
+float compute_freq_for_midi_note(uint8_t note);
+
 bool process_audio(uint16_t keycode, keyrecord_t *record);
 void process_audio_noteon(uint8_t note);
 void process_audio_noteoff(uint8_t note);
@@ -8,4 +10,4 @@ void process_audio_all_notes_off(void);
 
 void audio_on_user(void);
 
-#endif
+#endif