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+/* Copyright 2020 3araht
+ *
+ * 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 "version.h"
+
+// Alias layout macros that expand groups of keys.
+#define LAYOUT_wrapper(...) LAYOUT(__VA_ARGS__)
+
+#define DFCBASE DF(_C_SYSTEM_BASE)
+#define DF_QWER DF(_QWERTY)
+// Long press: go to _FN layer, tap: MUTE
+#define FN_MUTE LT(_FN, KC_MUTE)
+
+// Used to set octave to MI_OCT_0
+extern midi_config_t midi_config;
+uint8_t midi_bass_ch = 0, midi_chord_ch = 0; // By default, all use the same channel.
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+ _C_SYSTEM_BASE, // MIDI C-system
+ _QWERTY, // just in case
+ _FN
+};
+
+// Defines the keycodes used by our macros in process_record_user
+enum custom_keycodes {
+
+ // MIDI Chord Keycodes - Root notes
+ MY_CHORD_MIN = SAFE_RANGE,
+
+ MI_CH_Cr = MY_CHORD_MIN,
+ MI_CH_Csr,
+ MI_CH_Dbr = MI_CH_Csr,
+ MI_CH_Dr,
+ MI_CH_Dsr,
+ MI_CH_Ebr = MI_CH_Dsr,
+ MI_CH_Er,
+ MI_CH_Fr,
+ MI_CH_Fsr,
+ MI_CH_Gbr = MI_CH_Fsr,
+ MI_CH_Gr,
+ MI_CH_Gsr,
+ MI_CH_Abr = MI_CH_Gsr,
+ MI_CH_Ar,
+ MI_CH_Asr,
+ MI_CH_Bbr = MI_CH_Asr,
+ MI_CH_Br,
+
+ // MIDI Chord Keycodes - Major
+
+ MI_CH_C,
+ MI_CH_Cs,
+ MI_CH_Db = MI_CH_Cs,
+ MI_CH_D,
+ MI_CH_Ds,
+ MI_CH_Eb = MI_CH_Ds,
+ MI_CH_E,
+ MI_CH_F,
+ MI_CH_Fs,
+ MI_CH_Gb = MI_CH_Fs,
+ MI_CH_G,
+ MI_CH_Gs,
+ MI_CH_Ab = MI_CH_Gs,
+ MI_CH_A,
+ MI_CH_As,
+ MI_CH_Bb = MI_CH_As,
+ MI_CH_B,
+
+ // MIDI Chord Keycodes Minor
+
+ MI_CH_Cm,
+ MI_CH_Csm,
+ MI_CH_Dbm = MI_CH_Csm,
+ MI_CH_Dm,
+ MI_CH_Dsm,
+ MI_CH_Ebm = MI_CH_Dsm,
+ MI_CH_Em,
+ MI_CH_Fm,
+ MI_CH_Fsm,
+ MI_CH_Gbm = MI_CH_Fsm,
+ MI_CH_Gm,
+ MI_CH_Gsm,
+ MI_CH_Abm = MI_CH_Gsm,
+ MI_CH_Am,
+ MI_CH_Asm,
+ MI_CH_Bbm = MI_CH_Asm,
+ MI_CH_Bm,
+
+ //MIDI Chord Keycodes Dominant Seventh
+
+ MI_CH_CDom7,
+ MI_CH_CsDom7,
+ MI_CH_DbDom7 = MI_CH_CsDom7,
+ MI_CH_DDom7,
+ MI_CH_DsDom7,
+ MI_CH_EbDom7 = MI_CH_DsDom7,
+ MI_CH_EDom7,
+ MI_CH_FDom7,
+ MI_CH_FsDom7,
+ MI_CH_GbDom7 = MI_CH_FsDom7,
+ MI_CH_GDom7,
+ MI_CH_GsDom7,
+ MI_CH_AbDom7 = MI_CH_GsDom7,
+ MI_CH_ADom7,
+ MI_CH_AsDom7,
+ MI_CH_BbDom7 = MI_CH_AsDom7,
+ MI_CH_BDom7,
+
+ // MIDI Chord Keycodes Diminished Seventh
+
+ MI_CH_CDim7,
+ MI_CH_CsDim7,
+ MI_CH_DbDim7 = MI_CH_CsDim7,
+ MI_CH_DDim7,
+ MI_CH_DsDim7,
+ MI_CH_EbDim7 = MI_CH_DsDim7,
+ MI_CH_EDim7,
+ MI_CH_FDim7,
+ MI_CH_FsDim7,
+ MI_CH_GbDim7 = MI_CH_FsDim7,
+ MI_CH_GDim7,
+ MI_CH_GsDim7,
+ MI_CH_AbDim7 = MI_CH_GsDim7,
+ MI_CH_ADim7,
+ MI_CH_AsDim7,
+ MI_CH_BbDim7 = MI_CH_AsDim7,
+ MI_CH_BDim7,
+
+ MY_CHORD_MAX = MI_CH_BDim7,
+
+ VERSION
+};
+
+#define MY_CHORD_COUNT (MY_CHORD_MAX - MY_CHORD_MIN + 1)
+static uint8_t chord_status[MY_CHORD_COUNT];
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* C-system Base */
+ [_C_SYSTEM_BASE] = LAYOUT(
+ MI_CH_Dbr, MI_CH_Abr, MI_CH_Ebr, MI_CH_Bbr, MI_CH_Fr, MI_CH_Cr, MI_CH_Gr, MI_CH_Dr, MI_CH_Ar, MI_CH_Er, MI_CH_Br, MI_CH_Fsr,
+ MI_CH_Db, MI_CH_Ab, MI_CH_Eb, MI_CH_Bb, MI_CH_F, MI_CH_C, MI_CH_G, MI_CH_D, MI_CH_A, MI_CH_E, MI_CH_B, MI_CH_Fs,
+ MI_CH_Dbm, MI_CH_Abm, MI_CH_Ebm, MI_CH_Bbm, MI_CH_Fm, MI_CH_Cm, MI_CH_Gm, MI_CH_Dm, MI_CH_Am, MI_CH_Em, MI_CH_Bm, MI_CH_Fsm,
+ MI_CH_DbDom7, MI_CH_AbDom7, MI_CH_EbDom7, MI_CH_BbDom7, MI_CH_FDom7, MI_CH_CDom7, MI_CH_GDom7, MI_CH_DDom7, MI_CH_ADom7, MI_CH_EDom7, MI_CH_BDom7, MI_CH_FsDom7,
+ MI_CH_DbDim7, MI_CH_AbDim7, MI_CH_EbDim7, MI_CH_BbDim7, MI_CH_FDim7, MI_CH_CDim7, MI_CH_GDim7, MI_CH_DDim7, MI_CH_ADim7, MI_CH_EDim7, MI_CH_BDim7, MI_CH_FsDim7,
+
+ MI_Fs_2,
+ MI_Ab_2, MI_B_2, MI_D_3, MI_F_3, MI_Ab_3, MI_B_3, MI_D_4, MI_F_4, MI_Ab_4, MI_B_4, MI_D_5, MI_F_5, FN_MUTE,
+ MI_G_2, MI_Bb_2, MI_Db_3, MI_E_3, MI_G_3, MI_Bb_3, MI_Db_4, MI_E_4, MI_G_4, MI_Bb_4, MI_Db_5, MI_E_5, MI_G_5,
+ MI_A_2, MI_C_3, MI_Eb_3, MI_Fs_3, MI_A_3, MI_C_4, MI_Eb_4, MI_Fs_4, MI_A_4, MI_C_5, MI_Eb_5, MI_Fs_5
+ ),
+
+ /* QWERTY */
+ [_QWERTY] = LAYOUT_wrapper(
+ KC_GESC, _________________NUMBER_L__________________, _________________NUMBER_R__________________, KC_BSPC,
+ KC_TAB, _________________QWERTY_L1_________________, _________________QWERTY_R1_________________, KC_DEL,
+ KC_CAPS, _________________QWERTY_L2_________________, _________________QWERTY_R2_________________, KC_ENT,
+ KC_LSFT, _________________QWERTY_L3_________________, _________________QWERTY_R3_________________, KC_RSFT,
+ KC_LCTL, KC_LGUI, KC_LALT, KC_LANG2, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_LANG1, KC_RALT, KC_RGUI, KC_RCTRL,
+
+ _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+
+ /* Fn */
+ [_FN] = LAYOUT(
+ DFCBASE, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+ DF_QWER, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+
+ XXXXXXX,
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, VERSION, XXXXXXX, _______,
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
+ )
+};
+
+#if defined(ENCODER_MAP_ENABLE)
+const uint16_t PROGMEM encoder_map[][NUM_ENCODERS][2] = {
+ [_C_SYSTEM_BASE] = { ENCODER_CCW_CW(KC_VOLD, KC_VOLU) },
+ [_QWERTY] = { ENCODER_CCW_CW(_______, _______) },
+ [_FN] = { ENCODER_CCW_CW(_______, _______) },
+};
+#endif
+
+void keyboard_post_init_user(void) {
+ // Set otave to MI_OCT_0
+ midi_config.octave = MI_OCT_0 - MIDI_OCTAVE_MIN;
+
+ // avoid using 127 since it is used as a special number in some sound sources.
+ midi_config.velocity = MIDI_INITIAL_VELOCITY;
+
+ for (uint8_t i = 0; i < MY_CHORD_COUNT; i++) {
+ chord_status[i] = MIDI_INVALID_NOTE;
+ }
+
+ default_layer_set(1UL << _C_SYSTEM_BASE);
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ uint16_t root_note = MIDI_INVALID_NOTE; // Starting value for the root note of each chord
+
+ uint8_t chord = keycode - MY_CHORD_MIN;
+
+ switch (keycode) {
+ case VERSION: // Output firmware info.
+ if (record->event.pressed) {
+ SEND_STRING(QMK_KEYBOARD ":" QMK_KEYMAP " @ " QMK_VERSION " | " QMK_BUILDDATE);
+ }
+ break;
+
+ // MIDI Chord Keycodes, on the left side.
+ case MI_CH_Cr ... MI_CH_Br: // Root Notes
+ root_note = keycode - MI_CH_Cr + MI_C_1;
+ my_process_midi4Bass(midi_bass_ch, record, chord_status, chord, root_note, false);
+ break;
+
+ case MI_CH_C ... MI_CH_B: // Major Chords
+ root_note = keycode - MI_CH_C + MI_C_2;
+ // Root, Major Third, and Fifth Notes
+ my_process_midi4TriadChords(midi_chord_ch, record, chord_status, chord, root_note, 0, 4, 7);
+ break;
+
+ case MI_CH_Cm ... MI_CH_Bm: // Minor Chord
+ root_note = keycode - MI_CH_Cm + MI_C_2;
+ // Root, Minor Third, and Fifth Notes
+ my_process_midi4TriadChords(midi_chord_ch, record, chord_status, chord, root_note, 0, 3, 7);
+ break;
+
+ case MI_CH_CDom7 ... MI_CH_BDom7: // Dominant 7th Chord
+ root_note = keycode - MI_CH_CDom7 + MI_C_2;
+ // Major Third, Major Fifth, and Minor Seventh Notes
+ my_process_midi4TriadChords(midi_chord_ch, record, chord_status, chord, root_note, 4, 7, 10);
+ break;
+
+ case MI_CH_CDim7 ... MI_CH_BDim7: // Diminished 7th Chord
+ root_note = keycode - MI_CH_CDim7 + MI_C_2;
+ // Root, Minor Third, and Diminished 5th Note
+ my_process_midi4TriadChords(midi_chord_ch, record, chord_status, chord, root_note, 0, 3, 6);
+ break;
+ }
+ return true;
+}