[Keymap] Adds Preonic keymap for muzfuz. Small Planck addition. (#5019)

* Adds keymaps for muzfuz

* Remove unused keys from adjust layer

* Bring in line with current QMK standards.

* Adds Preonic and adjusted Planck keymaps

* Make changes per review request

4 files changed, 314 insertions, 0 deletions

diff --git a/keyboards/preonic/keymaps/muzfuz/config.h b/keyboards/preonic/keymaps/muzfuz/config.h
new file mode 100644
index 000000000..40a9524b4
--- /dev/null
+++ b/keyboards/preonic/keymaps/muzfuz/config.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#ifdef AUDIO_ENABLE
+    #define STARTUP_SONG SONG(PREONIC_SOUND)
+    // #define STARTUP_SONG SONG(NO_SOUND)
+
+    #define DEFAULT_LAYER_SONGS { SONG(QWERTY_SOUND), \
+                                  SONG(COLEMAK_SOUND), \
+                                  SONG(DVORAK_SOUND) \
+                                }
+#endif
+
+#define MUSIC_MASK (keycode != KC_NO)
+
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+   - MIDI notes can be sent when in Music mode is on
+*/
+
+#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+   - MIDI notes can be added to the keymap
+   - Octave shift and transpose
+   - Virtual sustain, portamento, and modulation wheel
+   - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 2
diff --git a/keyboards/preonic/keymaps/muzfuz/keymap.c b/keyboards/preonic/keymaps/muzfuz/keymap.c
new file mode 100644
index 000000000..a0a4b34fa
--- /dev/null
+++ b/keyboards/preonic/keymaps/muzfuz/keymap.c
@@ -0,0 +1,271 @@
+/* Copyright 2015-2017 Jack Humbert
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include QMK_KEYBOARD_H
+#include "muse.h"
+
+enum preonic_layers {
+  _QWERTY,
+  _LOWER,
+  _RAISE,
+  _ADJUST
+};
+
+enum preonic_keycodes
+{
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  BACKLIT,
+  HASHRKT,
+  CLNEQLS
+};
+
+#define RSE_ENT LT(_RAISE, KC_ENT)
+#define LWR_SPC LT(_LOWER, KC_SPC)
+#define ESC_CTL CTL_T(KC_ESCAPE)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+    /* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |   \  |
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | ESCCTL  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Shift |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt  | GUI  |Lower | Enter|Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+    [_QWERTY] = LAYOUT_preonic_grid(
+        KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSLS,
+        KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+        ESC_CTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT,
+        KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT,
+        BACKLIT, KC_LCTL, KC_LALT, KC_LGUI, KC_NO, RSE_ENT, KC_NO, LWR_SPC, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT),
+
+    /* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  |      |
+ * ,-----------------------------------------------------------------------------------.
+ * |      |  =>  |      |   [  |   ]  |      |      |   _  |   +  |   |   |      |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |ESCCTL|  :=  |      |  {   |  }   |   (  |   )  |   -  |   =  |   \  |   ~  | GUI |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |  [   |  ]   |     |     |      |      |      | Home  |  End  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+    [_LOWER] = LAYOUT_preonic_grid(
+        KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______,
+        _______, HASHRKT, _______, KC_LBRC, KC_RBRC, _______, _______, KC_UNDS, KC_PLUS, KC_PIPE, _______, _______,
+        ESC_CTL, CLNEQLS, _______, KC_LCBR, KC_RCBR, KC_LPRN, KC_RPRN, KC_MINS, KC_EQL, KC_BSLS, KC_TILD, KC_RGUI,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_END,
+        _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY),
+
+    /* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |      |
+ * ,-----------------------------------------------------------------------------------.
+ * |      |      |      |  Up  |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |ESCCTL|     | Left | Down | Right |      |      |      |      |      |      | GUI  |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |     |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+    [_RAISE] = LAYOUT_preonic_grid(
+        KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, _______,
+        _______, _______, _______, KC_UP, _______, _______, _______, _______, _______, _______, _______, _______,
+        ESC_CTL, _______, KC_LEFT, KC_DOWN, KC_RIGHT, _______, _______, _______, _______, _______, _______, KC_RGUI,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY),
+
+    /* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
+ * ,-----------------------------------------------------------------------------------.
+ * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|Plover|      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |Voice-|Voice+|Mus on|Musoff|MIDIon|MIDIof|      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |             |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+    [_ADJUST] = LAYOUT_preonic_grid(
+        KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,
+        _______, RESET, DEBUG, RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, KC_DEL,
+        _______, _______, MU_MOD, AU_ON, AU_OFF, _______, _______, QWERTY, _______, _______, _______, _______,
+        _______, MUV_DE, MUV_IN, MU_ON, MU_OFF, MI_ON, MI_OFF, TERM_ON, TERM_OFF, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______)
+
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+  case HASHRKT:
+    if (record->event.pressed)
+    {
+      SEND_STRING("=>");
+    }
+    break;
+  case CLNEQLS:
+    if (record->event.pressed)
+    {
+      SEND_STRING(":=");
+    }
+    break;
+  case QWERTY:
+    if (record->event.pressed)
+    {
+      set_single_persistent_default_layer(_QWERTY);
+    }
+    return false;
+    break;
+  case LOWER:
+    if (record->event.pressed)
+    {
+      layer_on(_LOWER);
+      update_tri_layer(_LOWER, _RAISE, _ADJUST);
+    }
+    else
+    {
+      layer_off(_LOWER);
+      update_tri_layer(_LOWER, _RAISE, _ADJUST);
+    }
+    return false;
+    break;
+  case RAISE:
+    if (record->event.pressed)
+    {
+      layer_on(_RAISE);
+      update_tri_layer(_LOWER, _RAISE, _ADJUST);
+    }
+    else
+    {
+      layer_off(_RAISE);
+      update_tri_layer(_LOWER, _RAISE, _ADJUST);
+    }
+    return false;
+    break;
+  case BACKLIT:
+    if (record->event.pressed)
+    {
+      register_code(KC_RSFT);
+            #ifdef BACKLIGHT_ENABLE
+              backlight_step();
+            #endif
+            #ifdef __AVR__
+            PORTE &= ~(1<<6);
+            #endif
+          } else {
+            unregister_code(KC_RSFT);
+            #ifdef __AVR__
+            PORTE |= (1<<6);
+            #endif
+          }
+          return false;
+          break;
+      }
+    return true;
+};
+
+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 {
+    if (clockwise) {
+      register_code(KC_PGDN);
+      unregister_code(KC_PGDN);
+    } else {
+      register_code(KC_PGUP);
+      unregister_code(KC_PGUP);
+    }
+  }
+}
+
+void dip_update(uint8_t index, bool active) {
+  switch (index) {
+    case 0:
+      if (active) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      break;
+    case 1:
+      if (active) {
+        muse_mode = true;
+      } else {
+        muse_mode = false;
+        #ifdef AUDIO_ENABLE
+          stop_all_notes();
+        #endif
+      }
+   }
+}
+
+void matrix_scan_user(void) {
+  #ifdef AUDIO_ENABLE
+    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;
+        }
+      }
+      muse_counter = (muse_counter + 1) % muse_tempo;
+    }
+  #endif
+}
+
+bool music_mask_user(uint16_t keycode) {
+  switch (keycode) {
+    case RAISE:
+    case LOWER:
+      return false;
+    default:
+      return true;
+  }
+}
diff --git a/keyboards/preonic/keymaps/muzfuz/readme.md b/keyboards/preonic/keymaps/muzfuz/readme.md
new file mode 100644
index 000000000..a709d5c94
--- /dev/null
+++ b/keyboards/preonic/keymaps/muzfuz/readme.md
@@ -0,0 +1,5 @@
+# The muzfuz Preonic layout - largely based on the Planck's
+
+```shell
+make preonic/rev3:muzfuz:dfu-util
+```
diff --git a/keyboards/preonic/keymaps/muzfuz/rules.mk b/keyboards/preonic/keymaps/muzfuz/rules.mk
new file mode 100644
index 000000000..dcf16bef3
--- /dev/null
+++ b/keyboards/preonic/keymaps/muzfuz/rules.mk
@@ -0,0 +1 @@
+SRC += muse.c