~ruther/qmk_firmware

1038ade342606f155b2ed0bee6542a24580fe6b9 — 3araht 3 years ago c230d06
[Keyboard] add chromatonemini keyboard (#13516)

A keyboards/bandominedoni/keymaps/led/config.h => keyboards/bandominedoni/keymaps/led/config.h +18 -0
@@ 0,0 1,18 @@
/* Copyright 2021 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/>.
 */
 #pragma once

#define DYNAMIC_KEYMAP_LAYER_COUNT 6

A keyboards/chromatonemini/chromatonemini.c => keyboards/chromatonemini/chromatonemini.c +208 -0
@@ 0,0 1,208 @@
/* Copyright 2021 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 "chromatonemini.h"

#ifdef RGB_MATRIX_ENABLE
#    define NO_LED 255

led_config_t g_led_config = {
    {
#if 0
        // register bottom two rows
        { 0,   4,  3,  2,  1, 41,  5, NO_LED },
        { 40,  6, 39,  7, 38,  8, 37, NO_LED },
        {  9, 36, 10, 35, 11, 34, 12, NO_LED },
        { 33, 13, 32, 14, 31, 15, 30, NO_LED },
        { 16, 29, 17, 28, 18, 27, 19, NO_LED },
        { 26, 20, 25, 21, 24, 22, 23, NO_LED }

        // register middle two rows
        { 0,   4,  3,  2,  1, 78, 42, NO_LED },
        { 77, 43, 76, 44, 75, 45, 74, NO_LED },
        { 46, 73, 47, 72, 48, 71, 49, NO_LED },
        { 70, 50, 69, 51, 68, 52, 67, NO_LED },
        { 53, 66, 54, 65, 55, 64, 56, NO_LED },
        { 63, 57, 62, 58, 61, 59, 60, NO_LED }

        // register top and bottom rows
        { 0,     4,   3,   2,   1, 115,   5, NO_LED },
        { 114,   6, 113,   7, 112,   8, 111, NO_LED },
        { 9,   110,  10, 109,  11, 108,  12, NO_LED },
        { 107,  13, 106,  14, 105,  15, 104, NO_LED },
        {  16, 103,  17, 102,  18, 101,  19, NO_LED },
        { 100,  20,  99,  21,  98,  22,  97, NO_LED }
#else
        // register top two rows
        { 0,     4,   3,   2,   1, 115,  79, NO_LED },
        { 114,  80, 113,  81, 112,  82, 111, NO_LED },
        { 83,  110,  84, 109,  85, 108,  86, NO_LED },
        { 107,  87, 106,  88, 105,  89, 104, NO_LED },
        {  90, 103,  91, 102,  92, 101,  93, NO_LED },
        { 100,  94,  99,  95,  98,  96,  97, NO_LED }
#endif
    },  {
        { 14,  12 },
        { 14,  36 },
        { 19,  48 }, { 9, 48 },
        { 14,  60 },
        { 39,  60 }, { 49,  60 }, {  59, 60 }, {  69, 60 }, {  79, 60 }, {  89, 60 }, {  99, 60 }, { 109, 60 }, { 119, 60 }, { 129, 60 }, { 139, 60 }, { 149, 60 }, { 159, 60 }, { 169, 60 }, { 179, 60 }, { 189, 60 }, { 199, 60 }, { 209, 60 },
        { 214, 48 }, { 204, 48 }, { 194, 48 }, { 184, 48 }, { 174, 48 }, { 164, 48 }, { 154, 48 }, { 144, 48 }, { 134, 48 }, { 124, 48 }, { 114, 48 }, { 104, 48 }, {  94, 48 }, {  84, 48 }, {  74, 48 }, {  64, 48 }, {  54, 48 }, {  44, 48 }, { 34, 48 },
        { 39,  36 }, { 49,  36 }, {  59, 36 }, {  69, 36 }, {  79, 36 }, {  89, 36 }, {  99, 36 }, { 109, 36 }, { 119, 36 }, { 129, 36 }, { 139, 36 }, { 149, 36 }, { 159, 36 }, { 169, 36 }, { 179, 36 }, { 189, 36 }, { 199, 36 }, { 209, 36 },
        { 214, 24 }, { 204, 24 }, { 194, 24 }, { 184, 24 }, { 174, 24 }, { 164, 24 }, { 154, 24 }, { 144, 24 }, { 134, 24 }, { 124, 24 }, { 114, 24 }, { 104, 24 }, {  94, 24 }, {  84, 24 }, {  74, 24 }, {  64, 24 }, {  54, 24 }, {  44, 24 }, { 34, 24 },
        { 39,  12 }, { 49,  12 }, {  59, 12 }, {  69, 12 }, {  79, 12 }, {  89, 12 }, {  99, 12 }, { 109, 12 }, { 119, 12 }, { 129, 12 }, { 139, 12 }, { 149, 12 }, { 159, 12 }, { 169, 12 }, { 179, 12 }, { 189, 12 }, { 199, 12 }, { 209, 12 },
        { 214,  0 }, { 204,  0 }, { 194,  0 }, { 184,  0 }, { 174,  0 }, { 164,  0 }, { 154,  0 }, { 144,  0 }, { 134,  0 }, { 124,  0 }, { 114,  0 }, { 104,  0 }, {  94,  0 }, {  84,  0 }, {  74,  0 }, {  64,  0} , {  54,  0 }, {  44,  0 }, { 34,  0 }
    },  {
        1,
        4,
        4, 4,
        4,
        4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
        4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
        4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
        4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
        4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
        4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4
    }
};

// indicator
const uint8_t led_scale_indicator[12][12] = {
  {23, 29, 35, 41, 60, 66,  72,  78,  97, 103,    109,    115},     //  C
  { 5, 11, 17, 42, 48, 54,  79,  85,  91, NO_LED, NO_LED, NO_LED},  //  C#
  {28, 34, 40, 65, 71, 77, 102, 108, 114, NO_LED, NO_LED, NO_LED},  //  D
  { 6, 12, 18, 43, 49, 55,  80,  86,  92, NO_LED, NO_LED, NO_LED},  //  D#
  {27, 33, 39, 64, 70, 76, 101, 107, 113, NO_LED, NO_LED, NO_LED},  //  E
  { 7, 13, 19, 44, 50, 56,  81,  87,  93, NO_LED, NO_LED, NO_LED},  //  F
  {26, 32, 38, 63, 69, 75, 100, 106, 112, NO_LED, NO_LED, NO_LED},  //  F#
  { 8, 14, 20, 45, 51, 57,  82,  88,  94, NO_LED, NO_LED, NO_LED},  //  G
  {25, 31, 37, 62, 68, 74,  99, 105, 111, NO_LED, NO_LED, NO_LED},  //  G#
  { 9, 15, 21, 46, 52, 58,  83,  89,  95, NO_LED, NO_LED, NO_LED},  //  A
  {24, 30, 36, 61, 67, 73,  98, 104, 110, NO_LED, NO_LED, NO_LED},  //  A#
  {10, 16, 22, 47, 53, 59,  84,  90,  96, NO_LED, NO_LED, NO_LED}   //  B
};

const uint8_t led_single_col_indicator[37][3] = {
  {41, 78, 115},  //  K01  = C1
  { 5, 42,  79},  //  K02  = C#1
  {40, 77, 114},  //  K03  = D1
  { 6, 43,  80},  //  K04  = D#1
  {39, 76, 113},  //  K05  = E1
  { 7, 44,  81},  //  K06  = F1
  {38, 75, 112},  //  K07  = F#1
  { 8, 45,  82},  //  K08  = G1
  {37, 74, 111},  //  K09  = G#1
  { 9, 46,  83},  //  K10  = A1
  {36, 73, 110},  //  K11  = A#1
  {10, 47,  84},  //  K12  = B1
  {35, 72, 109},  //  K13  = C2
  {11, 48,  85},  //  K14  = C#2
  {34, 71, 108},  //  K15  = D2
  {12, 49,  86},  //  K16  = D#2
  {33, 70, 107},  //  K17  = E2
  {13, 50,  87},  //  K18  = F2
  {32, 69, 106},  //  K19  = F#2
  {14, 51,  88},  //  K20  = G2
  {31, 68, 105},  //  K21  = G#2
  {15, 52,  89},  //  K22  = A2
  {30, 67, 104},  //  K23  = A#2
  {16, 53,  90},  //  K24  = B2
  {29, 66, 103},  //  K25  = C3
  {17, 54,  91},  //  K26  = C#3
  {28, 65, 102},  //  K27  = D3
  {18, 55,  92},  //  K28  = D#3
  {27, 64, 101},  //  K29  = E3
  {19, 56,  93},  //  K30  = F3
  {26, 63, 100},  //  K31  = F#3
  {20, 57,  94},  //  K32  = G3
  {25, 62,  99},  //  K33  = G#3
  {21, 58,  95},  //  K34  = A3
  {24, 61,  98},  //  K35  = A#3
  {22, 59,  96},  //  K36  = B3
  {23, 60,  97}   //  K37  = C4
};

#endif  //  RGB_MATRIX_ENABLE

uint8_t shift_led_indicator_left(uint8_t scale_indicator_col){
    if (scale_indicator_col > 0) {
        scale_indicator_col--;
    } else {
        scale_indicator_col = 11;
    }
    return scale_indicator_col;
}

uint8_t shift_led_indicator_right(uint8_t scale_indicator_col){
    if (scale_indicator_col < 11) {
        scale_indicator_col++;
    } else {
        scale_indicator_col = 0;
    }
    return scale_indicator_col;
}

#ifdef ENCODER_ENABLE
#   ifdef ENCODERS
static uint8_t  encoder_state[ENCODERS] = {0};
static keypos_t encoder_cw[ENCODERS]    = ENCODERS_CW_KEY;
static keypos_t encoder_ccw[ENCODERS]   = ENCODERS_CCW_KEY;
#   endif

void encoder_action_unregister(void) {
#   ifdef ENCODERS
    for (int index = 0; index < ENCODERS; ++index) {
        if (encoder_state[index]) {
            keyevent_t encoder_event = (keyevent_t) {
                .key = encoder_state[index] >> 1 ? encoder_cw[index] : encoder_ccw[index],
                .pressed = false,
                .time = (timer_read() | 1)
            };
            encoder_state[index] = 0;
            action_exec(encoder_event);
        }
    }
#   endif
}

void encoder_action_register(uint8_t index, bool clockwise) {
#   ifdef ENCODERS
    keyevent_t encoder_event = (keyevent_t) {
        .key = clockwise ? encoder_cw[index] : encoder_ccw[index],
        .pressed = true,
        .time = (timer_read() | 1)
    };
    encoder_state[index] = (clockwise ^ 1) | (clockwise << 1);
#       ifdef CONSOLE_ENABLE
    uprintf("encoder_action_register index = %u, clockwise = %u, row = %u, col = %u\n", index, clockwise, encoder_event.key.row, encoder_event.key.col);
#       endif
    action_exec(encoder_event);
#   endif
}

void matrix_scan_kb(void) {
    encoder_action_unregister();
    matrix_scan_user();
}

bool encoder_update_kb(uint8_t index, bool clockwise) {
    encoder_action_register(index, clockwise);
    // don't return user actions, because they are in the keymap
    // encoder_update_user(index, clockwise);
    return true;
};

#endif

A keyboards/chromatonemini/chromatonemini.h => keyboards/chromatonemini/chromatonemini.h +122 -0
@@ 0,0 1,122 @@
/* Copyright 2021 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/>.
 */

#pragma once

#include "quantum.h"

/* This is a shortcut to help you visually see your layout.
 *
 * The first section contains all of the arguments representing the physical
 * layout of the board and position of the keys.
 *
 * The second converts the arguments into a two-dimensional array which
 * represents the switch matrix.
 */
#define LAYOUT( \
        enc,       sustain,                  ccw, cw,                                                             \
        up,                                                                                                       \
    left, right,   k01, k03, k05, k07, k09, k11, k13, k15, k17, k19, k21, k23, k25, k27, k29, k31, k33, k35, k37, \
        down,        k02, k04, k06, k08, k10, k12, k14, k16, k18, k20, k22, k24, k26, k28, k30, k32, k34, k36     \
) { \
    { enc, down, left, right, up,  k01, k02, sustain }, \
    { k03, k04,  k05,  k06,   k07, k08, k09, ccw     }, \
    { k10, k11,  k12,  k13,   k14, k15, k16, cw      }, \
    { k17, k18,  k19,  k20,   k21, k22, k23, KC_NO   }, \
    { k24, k25,  k26,  k27,   k28, k29, k30, KC_NO   }, \
    { k31, k32,  k33,  k34,   k35, k36, k37, KC_NO   }  \
}


#ifdef RGB_MATRIX_ENABLE
extern led_config_t g_led_config;
extern const uint8_t led_scale_indicator[12][12];
extern const uint8_t led_single_col_indicator[37][3];

    //  default base layer color
#   define BASE_LAYER_COLOR  RGB_DARKGOLDENROD

    //  border color
#   define FLIP_BORDER_COLOR RGB_DARKRED

    // flip entirely
#   define FLIPB_LAYER_COLOR RGB_DARKYELLOW

    //  channel separation group
#   define SEPALEFT_LAYER_COLOR RGB_DARKGREEN
#   define SEPAHALF_LAYER_COLOR RGB_DARKGREEN
#   define SEPARIGHT_LAYER_COLOR RGB_DARKGREEN

    //  Trans group
#   define TRANS_LAYER_COLOR RGB_DARKORANGE
#   define SEPALEFT_T_LAYER_COLOR RGB_DARKORANGE
#   define SEPAHALF_T_LAYER_COLOR RGB_DARKORANGE
#   define SEPARIGHT_T_LAYER_COLOR RGB_DARKORANGE
#   define FLIPT_LAYER_COLOR RGB_DARKORANGE
#endif  //  RGB_MATRIX_ENABLE

// Defines names for use in _FN layer to specify which column to be used to turn on the LEDs.
// use this with led_single_col_indicator[37][3], ex. led_single_col_indicator[_FN_C2][0].
enum my_key_names {
    _KEY01= 0,
    _KEY02,
    _KEY03,
    _KEY04,
    _KEY05,
    _KEY06,
    _KEY07,
    _KEY08,
    _KEY09,
    _KEY10,
    _KEY11,
    _KEY12,
    _KEY13,
    _KEY14,
    _KEY15,
    _KEY16,
    _KEY17,
    _KEY18,
    _KEY19,
    _KEY20,
    _KEY21,
    _KEY22,
    _KEY23,
    _KEY24,
    _KEY25,
    _KEY26,
    _KEY27,
    _KEY28,
    _KEY29,
    _KEY30,
    _KEY31,
    _KEY32,
    _KEY33,
    _KEY34,
    _KEY35,
    _KEY36,
    _KEY37,
};

#ifdef MIDI_ENABLE
extern MidiDevice midi_device;
#endif  //  MIDI_ENABLE

uint8_t shift_led_indicator_left(uint8_t scale_indicator_col);
uint8_t shift_led_indicator_right(uint8_t scale_indicator_col);

void encoder_action_unregister(void);

void encoder_action_register(uint8_t index, bool clockwise);

A keyboards/chromatonemini/config.h => keyboards/chromatonemini/config.h +283 -0
@@ 0,0 1,283 @@
/*
Copyright 2021 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/>.
*/

#pragma once

#include "config_common.h"

/* key matrix size */
#define MATRIX_ROWS 6
#define MATRIX_COLS 8

/*
 * Keyboard Matrix Assignments
 *
 * Change this to how you wired your keyboard
 * COLS: AVR pins used for columns, left to right
 * ROWS: AVR pins used for rows, top to bottom
 * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
 *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
 *
 */
#define MATRIX_ROW_PINS { E6, D7, C6, D4, D0, D1 }
#define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3, B2, B6 }
#define UNUSED_PINS

/* COL2ROW, ROW2COL */
#define DIODE_DIRECTION COL2ROW

/*
 * Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk, and define SOFT_SERIAL_PIN.
 */
// #define SOFT_SERIAL_PIN D0  // or D1, D2, D3, E6

//#define LED_NUM_LOCK_PIN B0
//#define LED_CAPS_LOCK_PIN B1
//#define LED_SCROLL_LOCK_PIN B2
//#define LED_COMPOSE_PIN B3
//#define LED_KANA_PIN B4

//#define BACKLIGHT_PIN B7
//#define BACKLIGHT_LEVELS 3
//#define BACKLIGHT_BREATHING

/* ws2812 RGB LED */
#define RGB_DI_PIN D3
//#ifdef RGB_DI_PIN
//#    define RGBLED_NUM 16
//#    define RGBLIGHT_HUE_STEP 8
//#    define RGBLIGHT_SAT_STEP 8
//#    define RGBLIGHT_VAL_STEP 8
//#    define RGBLIGHT_LIMIT_VAL 255 /* The maximum brightness level */
//#    define RGBLIGHT_SLEEP  /* If defined, the RGB lighting will be switched off when the host goes to sleep */
/*== all animations enable ==*/
//#    define RGBLIGHT_ANIMATIONS
/*== or choose animations ==*/
//#    define RGBLIGHT_EFFECT_BREATHING
//#    define RGBLIGHT_EFFECT_RAINBOW_MOOD
//#    define RGBLIGHT_EFFECT_RAINBOW_SWIRL
//#    define RGBLIGHT_EFFECT_SNAKE
//#    define RGBLIGHT_EFFECT_KNIGHT
//#    define RGBLIGHT_EFFECT_CHRISTMAS
//#    define RGBLIGHT_EFFECT_STATIC_GRADIENT
//#    define RGBLIGHT_EFFECT_RGB_TEST
//#    define RGBLIGHT_EFFECT_ALTERNATING
/*== customize breathing effect ==*/
/*==== (DEFAULT) use fixed table instead of exp() and sin() ====*/
//#    define RGBLIGHT_BREATHE_TABLE_SIZE 256      // 256(default) or 128 or 64
/*==== use exp() and sin() ====*/
//#    define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85  // 1 to 2.7
//#    define RGBLIGHT_EFFECT_BREATHE_MAX    255   // 0 to 255
//#endif


#ifdef RGB_MATRIX_ENABLE

/* ws2812 RGB MATRIX */
#   define DRIVER_LED_TOTAL 116

 // reacts to keypresses
#   define RGB_MATRIX_KEYPRESSES

//  for all fingers used at once.
#   define LED_HITS_TO_REMEMBER 10

#   define RGB_MATRIX_MAXIMUM_BRIGHTNESS 50
#   define RGB_MATRIX_STARTUP_SPD 127
#   define RGB_MATRIX_CENTER { 124, 32 }
// the above brighness setting has no effect on rgb_matrix_set_color().
// Use darker colors instead.
/*              RGB darker COLORS             */
#   define RGB_DARKWHITE 0x33, 0x33, 0x33
#   define RGB_DARKRED 0x33, 0x0, 0x0
#   define RGB_DARKCORAL 0x33, 0x18, 0xF
#   define RGB_DARKORANGE 0x33, 0x19, 0x0
#   define RGB_DARKGOLDENROD 0x2B, 0x21, 0x6
#   define RGB_DARKGOLD 0x33, 0x2B, 0x0
#   define RGB_DARKYELLOW 0x33, 0x33, 0x0
#   define RGB_DARKCHARTREUSE 0x19, 0x33, 0x0
#   define RGB_DARKGREEN 0x0, 0x33, 0x0
#   define RGB_DARKSPRINGGREEN 0x0, 0x33, 0x19
#   define RGB_DARKTURQUOISE 0xE, 0x16, 0x15
#   define RGB_DARKTEAL 0x0, 0x19, 0x19
#   define RGB_DARKCYAN 0x0, 0x33, 0x33
#   define RGB_DARKAZURE 0x1E, 0x31, 0x33
#   define RGB_DARKBLUE 0x0, 0x0, 0x33
#   define RGB_DARKPURPLE 0x18, 0x0, 0x33
#   define RGB_DARKMAGENTA 0x33, 0x0, 0x33
#   define RGB_DARKPINK 0x33, 0x19, 0x26

//  https://docs.qmk.fm/#/feature_rgb_matrix
//  Enable suspend mode.
#   define RGB_DISABLE_WHEN_USB_SUSPENDED

#   ifdef CONSOLE_ENABLE
#       define ENABLE_RGB_MATRIX_SOLID_COLOR
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
#   else
#       define ENABLE_RGB_MATRIX_GRADIENT_UP_DOWN
#       define ENABLE_RGB_MATRIX_GRADIENT_LEFT_RIGHT
#       define ENABLE_RGB_MATRIX_BREATHING
#       define ENABLE_RGB_MATRIX_BAND_SAT
#       define ENABLE_RGB_MATRIX_BAND_VAL
#       define ENABLE_RGB_MATRIX_BAND_PINWHEEL_SAT
#       define ENABLE_RGB_MATRIX_BAND_PINWHEEL_VAL
#       define ENABLE_RGB_MATRIX_BAND_SPIRAL_SAT
#       define ENABLE_RGB_MATRIX_BAND_SPIRAL_VAL
#       define ENABLE_RGB_MATRIX_CYCLE_ALL
#       define ENABLE_RGB_MATRIX_CYCLE_LEFT_RIGHT
#       define ENABLE_RGB_MATRIX_CYCLE_UP_DOWN
#       define ENABLE_RGB_MATRIX_RAINBOW_MOVING_CHEVRON
#       define ENABLE_RGB_MATRIX_CYCLE_OUT_IN
#       define ENABLE_RGB_MATRIX_CYCLE_OUT_IN_DUAL
#       define ENABLE_RGB_MATRIX_CYCLE_PINWHEEL
#       define ENABLE_RGB_MATRIX_CYCLE_SPIRAL
#       define ENABLE_RGB_MATRIX_DUAL_BEACON
#       define ENABLE_RGB_MATRIX_RAINBOW_BEACON
#       define ENABLE_RGB_MATRIX_RAINBOW_PINWHEELS
#       define ENABLE_RGB_MATRIX_RAINDROPS
#       define ENABLE_RGB_MATRIX_JELLYBEAN_RAINDROPS
#       define ENABLE_RGB_MATRIX_HUE_BREATHING
#       define ENABLE_RGB_MATRIX_HUE_PENDULUM
#       define ENABLE_RGB_MATRIX_HUE_WAVE
#       define ENABLE_RGB_MATRIX_TYPING_HEATMAP
#       define ENABLE_RGB_MATRIX_DIGITAL_RAIN
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE_SIMPLE
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE_WIDE
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTIWIDE
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE_CROSS
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTICROSS
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE_NEXUS
#       define ENABLE_RGB_MATRIX_SOLID_REACTIVE_MULTINEXUS
#       define ENABLE_RGB_MATRIX_SPLASH
#       define ENABLE_RGB_MATRIX_MULTISPLASH
#       define ENABLE_RGB_MATRIX_SOLID_SPLASH
#       define ENABLE_RGB_MATRIX_SOLID_MULTISPLASH
#   endif  // CONSOLE_ENABLE
#endif  // RGB_MATRIX_ENABLE

/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
#define DEBOUNCE 5

/* define if matrix has ghost (lacks anti-ghosting diodes) */
//#define MATRIX_HAS_GHOST

// /* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
// #define LOCKING_SUPPORT_ENABLE
// /* Locking resynchronize hack */
// #define LOCKING_RESYNC_ENABLE

/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
 * This is useful for the Windows task manager shortcut (ctrl+shift+esc).
 */
//#define GRAVE_ESC_CTRL_OVERRIDE

/*
 * Force NKRO
 *
 * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
 * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
 * makefile for this to work.)
 *
 * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
 * until the next keyboard reset.
 *
 * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
 * fully operational during normal computer usage.
 *
 * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
 * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
 * bootmagic, NKRO mode will always be enabled until it is toggled again during a
 * power-up.
 *
 */
//#define FORCE_NKRO

/*
 * Feature disable options
 *  These options are also useful to firmware size reduction.
 */

/* disable debug print */
//#define NO_DEBUG

/* disable print */
//#define NO_PRINT

/* disable action features */
//#define NO_ACTION_LAYER
//#define NO_ACTION_TAPPING
//#define NO_ACTION_ONESHOT

/* Bootmagic Lite key configuration */
//#define BOOTMAGIC_LITE_ROW 0
//#define BOOTMAGIC_LITE_COLUMN 0

/* Audio */
#ifdef AUDIO_ENABLE
#   define AUDIO_PIN B6  // use PB6 = PIN10 as Audio output
// #define DAC_SAMPLE_MAX 32768U
#   define DAC_SAMPLE_MAX 65535U
// #define AUDIO_CLICKY
#   define NO_MUSIC_MODE
// #define STARTUP_SONG SONG(FANTASIE_IMPROMPTU)
// #define STARTUP_SONG SONG(NOCTURNE_OP_9_NO_1)
// #define STARTUP_SONG SONG(USSR_ANTHEM)
// #define STARTUP_SONG SONG(CAMPANELLA)
#endif  //  AUDIO_ENABLE

/*
 * MIDI options
 */

/* 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.
*/
#ifdef MIDI_ENABLE
#   define MIDI_ADVANCED
// Initial velocity value (avoid using 127 since it is used as a special number in some sound sources.)
#   define MIDI_INITIAL_VELOCITY 117
#endif  //  MIDI_ENABLE

/*
 * Encoder options
 */
#ifdef ENCODER_ENABLE
#   define ENCODERS_PAD_A { B5 }
#   define ENCODERS_PAD_B { B4 }
#   define ENCODER_RESOLUTION 4
#   define TAP_CODE_DELAY 10

#define ENCODERS 1
#define ENCODERS_CW_KEY  { {7, 2} }
#define ENCODERS_CCW_KEY { {7, 1} }
#endif  // ENCODER_ENABLE

/* 2021/01/22 added to shrink firmware size */
// NO_ACTION_TAPPING -1964 bytes, however, this disables Layer mods...
// #define NO_ACTION_TAPPING
// NO_ACTION_ONESHOT -388 bytes
#define NO_ACTION_ONESHOT

A keyboards/chromatonemini/info.json => keyboards/chromatonemini/info.json +61 -0
@@ 0,0 1,61 @@
{
    "keyboard_name": "chromatonemini",
    "manufacturer": "3araht",
    "url": "https://github.com/3araht/chromatonemini",
    "maintainer": "3araht",
    "usb": {
        "vid": "0xFEED",
        "pid": "0xF4B4",
        "device_version": "0.0.1"
    },
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"label":"enc", "x":0.5, "y":0},
                {"label":"sustain", "x":1.5, "y":0},
                {"label":"ccw", "x":2.5, "y":0},
                {"label":"cw", "x":3.5, "y":0},
                {"label":"up", "x":0.5, "y":1.5},
                {"label":"left", "x":0, "y":2.5},
                {"label":"right", "x":1, "y":2.5},
                {"label":"k01", "x":2.5, "y":2.5},
                {"label":"k03", "x":3.5, "y":2.5},
                {"label":"k05", "x":4.5, "y":2.5},
                {"label":"k07", "x":5.5, "y":2.5},
                {"label":"k09", "x":6.5, "y":2.5},
                {"label":"k11", "x":7.5, "y":2.5},
                {"label":"k13", "x":8.5, "y":2.5},
                {"label":"k15", "x":9.5, "y":2.5},
                {"label":"k17", "x":10.5, "y":2.5},
                {"label":"k19", "x":11.5, "y":2.5},
                {"label":"k21", "x":12.5, "y":2.5},
                {"label":"k23", "x":13.5, "y":2.5},
                {"label":"k25", "x":14.5, "y":2.5},
                {"label":"k27", "x":15.5, "y":2.5},
                {"label":"k29", "x":16.5, "y":2.5},
                {"label":"k31", "x":17.5, "y":2.5},
                {"label":"k33", "x":18.5, "y":2.5},
                {"label":"k35", "x":19.5, "y":2.5},
                {"label":"k37", "x":20.5, "y":2.5},
                {"label":"down", "x":0.5, "y":3.5},
                {"label":"k02", "x":3, "y":3.5},
                {"label":"k04", "x":4, "y":3.5},
                {"label":"k06", "x":5, "y":3.5},
                {"label":"k08", "x":6, "y":3.5},
                {"label":"k10", "x":7, "y":3.5},
                {"label":"k12", "x":8, "y":3.5},
                {"label":"k14", "x":9, "y":3.5},
                {"label":"k16", "x":10, "y":3.5},
                {"label":"k18", "x":11, "y":3.5},
                {"label":"k20", "x":12, "y":3.5},
                {"label":"k22", "x":13, "y":3.5},
                {"label":"k24", "x":14, "y":3.5},
                {"label":"k26", "x":15, "y":3.5},
                {"label":"k28", "x":16, "y":3.5},
                {"label":"k30", "x":17, "y":3.5},
                {"label":"k32", "x":18, "y":3.5},
                {"label":"k34", "x":19, "y":3.5},
                {"label":"k36", "x":20, "y":3.5}]
        }
    }
}

A keyboards/chromatonemini/keymaps/default/keymap.c => keyboards/chromatonemini/keymaps/default/keymap.c +106 -0
@@ 0,0 1,106 @@
/* Copyright 2021 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"

// Defines names for use in layer keycodes and the keymap
enum layer_names {
    _BASE,
    _RESERVE,
    _FN
};

// Defines the keycodes used by our macros in process_record_user
enum custom_keycodes {
    L_BASE = SAFE_RANGE,
    L_RESERVE,
    VERSION
};

// 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;

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Base */
    [_BASE] = LAYOUT(
            FN_MUTE,          MI_SUS,                            KC_VOLD, KC_VOLU,
            MI_BENDU,
        MI_TRNSD, MI_TRNSU,  MI_C_2, MI_D_2, MI_E_2,  MI_Fs_2, MI_Ab_2, MI_Bb_2, MI_C_3, MI_D_3, MI_E_3, MI_Fs_3, MI_Ab_3, MI_Bb_3, MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            MI_BENDD,           MI_Db_2, MI_Eb_2, MI_F_2,  MI_G_2,  MI_A_2,  MI_B_2, MI_Db_3, MI_Eb_3, MI_F_3,  MI_G_3, MI_A_3,  MI_B_3, MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* RESERVE */
    [_RESERVE] = LAYOUT(
            _______,          _______,                             _______, _______,
            _______,
        _______, _______,      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
            _______,               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
    ),

    [_FN] =  LAYOUT(
            _______,          XXXXXXX,                             XXXXXXX, XXXXXXX,
            MI_VELU,
        MI_OCTD, MI_OCTU,     L_BASE, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, VERSION, XXXXXXX, XXXXXXX,
            MI_VELD,               L_RESERVE, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, EEP_RST, XXXXXXX, XXXXXXX
    )
};

// commom codes called from eeconfig_init_user() and keyboard_post_init_user().
void my_init(void){
    //  Set octave to MI_OCT_1
    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;
    default_layer_set(1UL << _BASE);
}

void eeconfig_init_user(void) {  // EEPROM is getting reset!
    midi_init();
    my_init(); // commom codes called from eeconfig_init_user() and keyboard_post_init_user().
}

void keyboard_post_init_user(void) {
    my_init(); // commom codes called from eeconfig_init_user() and keyboard_post_init_user().
};

void reset_scale_indicator(void) {
    //  reset transpose value and scale_indicator_col to default.
    midi_config.transpose = 0;
}

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    switch (keycode) {
        case VERSION: // Output firmware info.
            if (record->event.pressed) {
                SEND_STRING(QMK_KEYBOARD ":" QMK_KEYMAP " @ " QMK_VERSION " | " QMK_BUILDDATE);
            }
            break;

        case L_BASE:
            reset_scale_indicator();
            default_layer_set(1UL << _BASE);
            break;

        case L_RESERVE:
            reset_scale_indicator();
            default_layer_set(1UL << _RESERVE);
            break;
    }
    return true;
}

A keyboards/chromatonemini/keymaps/default/readme.md => keyboards/chromatonemini/keymaps/default/readme.md +1 -0
@@ 0,0 1,1 @@
# The default keymap for chromatonemini

A keyboards/chromatonemini/keymaps/led/keymap.c => keyboards/chromatonemini/keymaps/led/keymap.c +682 -0
@@ 0,0 1,682 @@
/* Copyright 2021 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"

//  define which MIDI ch to use.
//  Note that (actual MIDI ch# - 1) -> 0 .. 15 is used for coding.
//  ch1
#define DEFAULT_MAIN_CH_NUMBER 0
//  ch3
#define DEFAULT_SUB_CH_NUMBER  2
//  ch2
#define ALT_MAIN_CH_NUMBER     1
//  ch4
#define ALT_SUB_CH_NUMBER      3
static uint8_t midi_left_ch = DEFAULT_SUB_CH_NUMBER;       //  By default, DEFAULT_SUB_CH_NUMBER is used for left side when separated.

//  By default( when use_alt_ch_gr == false), DEFAULT ch group (DEFAULT_MAIN_CH_NUMBER for entirely, or right side when separated, DEFAULT_SUB_CH_NUMBER for left side) is used.
//  When false, ALT ch group (ALT_MAIN_CH_NUMBER for entirely, or right side when separated, ALT_SUB_CH_NUMBER for left side) is used.
static bool use_alt_ch_gr = false;

// Defines names for use in layer keycodes and the keymap
enum layer_names {
    _BASE,              //  Base layer, shift mode, single channel.
    _SEPALEFTOCT,       //  1st oct channel separated version. Shift mode.
    _SEPAHALF,          //  Half channel separated version. Shift mode.
    _SEPARIGHTOCT,      //  2nd oct channel separated version. Shift mode.
    _TRANS,             //  Transpose feature is enabled instead of shift mode, single channel.
    _FLIPBASE,          //  Horizontal flipped version entirely. single channel.
    _FLIPTRANS,         //  Horizontal flipped version entirely. Transpose is used. single channel.
    _FN                 //  FuNction layer. This must be at the end of the enumurate to use the range from _LS_FN ... _LS_FN_MAX for FN layer LED settings.
};

//  Layer State
#define _LS_BASE           (1UL << _BASE)
#define _LS_SEPALEFTOCT    (1UL << _SEPALEFTOCT)
#define _LS_SEPAHALF       (1UL << _SEPAHALF)
#define _LS_SEPARIGHTOCT   (1UL << _SEPARIGHTOCT)
#define _LS_FLIPBASE       (1UL << _FLIPBASE)

#define _LS_TRANS          (1UL << _BASE         | 1UL << _TRANS)
#define _LS_SEPALEFTOCT_T  (1UL << _SEPALEFTOCT  | 1UL << _TRANS)
#define _LS_SEPAHALF_T     (1UL << _SEPAHALF     | 1UL << _TRANS)
#define _LS_SEPARIGHTOCT_T (1UL << _SEPARIGHTOCT | 1UL << _TRANS)
#define _LS_FLIPTRANS      (1UL << _FLIPBASE     | 1UL << _FLIPTRANS)

#define _LS_FN             (1UL << _FN)
#define _LS_MAX            (_LS_FN << 1)

//  Don't change the DEFAULT_SCALE_COL value below. It must be 0.
#define DEFAULT_SCALE_COL 0
static uint8_t scale_indicator_col = DEFAULT_SCALE_COL;
static bool trans_mode_indicator_loc_sel = true;  // when it is true, the location is _KEY01, _KEY13, ...

//  use led indicator or not.
static bool led_indicator_enable = true;

// Defines the keycodes used by our macros in process_record_user
enum custom_keycodes {
    SHIFT_L = SAFE_RANGE,
    SHIFT_R,
    TGLINDI,  //  ToGgLe INDIcator
    TGLINTR,  //  ToGgLe INdicator location {(_KEY01, _KEY13, _KEY25, _KEY37) or (_KEY02, _KEY14, _KEY26) / (_KEY12, _KEY24, _KEY36)}in TRans mode
    TGLTRNS,  //  ToGgLe TRaNS and shift
    TGLCHGR,  //  ToGgLe CH GRoup
    VERSION,

    B_BASE,            //  border set to the left end.
    B_LEFT,            //  border set to the 1st left octave.
    B_CENTER,          //  border set to the center.
    B_RIGHT,           //  border set to the 1st right octave.
    B_FLIP,            //  border set to the right end.

    // MY tone for _FLIPHALF and _FLIPLEFTOCT layers to distinguish the notes to avoid sustain effect, etc.
    // Since they are flipped, their subscripts are not MY_ but YM_, to make them easier to tell.
    YM_TONE_MIN,

    YM_C = YM_TONE_MIN,
    YM_Cs,
    YM_Db = YM_Cs,
    YM_D,
    YM_Ds,
    YM_Eb = YM_Ds,
    YM_E,
    YM_F,
    YM_Fs,
    YM_Gb = YM_Fs,
    YM_G,
    YM_Gs,
    YM_Ab = YM_Gs,
    YM_A,
    YM_As,
    YM_Bb = YM_As,
    YM_B,

    YM_C_1,
    YM_Cs_1,
    YM_Db_1 = YM_Cs_1,
    YM_D_1,
    YM_Ds_1,
    YM_Eb_1 = YM_Ds_1,
    YM_E_1,
    YM_F_1,
    YM_Fs_1,
    YM_Gb_1 = YM_Fs_1,
    YM_G_1,
    YM_Gs_1,
    YM_Ab_1 = YM_Gs_1,
    YM_A_1,
    YM_As_1,
    YM_Bb_1 = YM_As_1,
    YM_B_1,

    YM_C_2,
    YM_Cs_2,
    YM_Db_2 = YM_Cs_2,
    YM_D_2,
    YM_Ds_2,
    YM_Eb_2 = YM_Ds_2,
    YM_E_2,
    YM_F_2,
    YM_Fs_2,
    YM_Gb_2 = YM_Fs_2,
    YM_G_2,
    YM_Gs_2,
    YM_Ab_2 = YM_Gs_2,
    YM_A_2,
    YM_As_2,
    YM_Bb_2 = YM_As_2,
    YM_B_2,

    YM_C_3,
    YM_Cs_3,
    YM_Db_3 = YM_Cs_3,
    YM_D_3,
    YM_Ds_3,
    YM_Eb_3 = YM_Ds_3,
    YM_E_3,
    YM_F_3,
    YM_Fs_3,
    YM_Gb_3 = YM_Fs_3,
    YM_G_3,
    YM_Gs_3,
    YM_Ab_3 = YM_Gs_3,
    YM_A_3,
    YM_As_3,
    YM_Bb_3 = YM_As_3,
    YM_B_3,

    YM_C_4,
    YM_Cs_4,
    YM_Db_4 = YM_Cs_4,
    YM_D_4,
    YM_Ds_4,
    YM_Eb_4 = YM_Ds_4,
    YM_E_4,
    YM_F_4,
    YM_Fs_4,
    YM_Gb_4 = YM_Fs_4,
    YM_G_4,
    YM_Gs_4,
    YM_Ab_4 = YM_Gs_4,
    YM_A_4,
    YM_As_4,
    YM_Bb_4 = YM_As_4,
    YM_B_4,

    YM_C_5,
    YM_Cs_5,
    YM_Db_5 = YM_Cs_5,
    YM_D_5,
    YM_Ds_5,
    YM_Eb_5 = YM_Ds_5,
    YM_E_5,
    YM_F_5,
    YM_Fs_5,
    YM_Gb_5 = YM_Fs_5,
    YM_G_5,
    YM_Gs_5,
    YM_Ab_5 = YM_Gs_5,
    YM_A_5,
    YM_As_5,
    YM_Bb_5 = YM_As_5,
    YM_B_5,

    YM_C_6,
    YM_TONE_MAX = YM_C_6
};

#define MY_TONE_COUNT (YM_TONE_MAX - YM_TONE_MIN + 1)
static uint8_t my_tone_status[MY_TONE_COUNT];

// 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;
static bool is_trans_mode = false;     //  By default, shift mode is chosen.

static uint8_t key_separator_col = _KEY01;  //  (_KEY01 .. _KEY37).     By default, _KEY01 (= _BASE layer) is chosen. _KEY13 = *LEFT, _KEY19 = *HALF, _KEY25 = *RIGHT, _KEY37 = _FLIPBASE and _FLIPTRANS.

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Base */
    [_BASE] = LAYOUT(
            FN_MUTE,         MI_SUS,                             KC_VOLD, KC_VOLU,
            MI_BENDU,
        SHIFT_L, SHIFT_R,    MI_C_2, MI_D_2, MI_E_2,  MI_Fs_2, MI_Ab_2, MI_Bb_2, MI_C_3, MI_D_3, MI_E_3, MI_Fs_3, MI_Ab_3, MI_Bb_3, MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            MI_BENDD,           MI_Db_2, MI_Eb_2, MI_F_2,  MI_G_2,  MI_A_2,  MI_B_2, MI_Db_3, MI_Eb_3, MI_F_3,  MI_G_3, MI_A_3,  MI_B_3, MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* 1 octave on the left side is ch2, others are ch1 (normal) */
    [_SEPALEFTOCT] = LAYOUT(
            _______,          _______,                             _______, _______,
            _______,
        SHIFT_L, SHIFT_R,     YM_C_2, YM_D_2, YM_E_2,  YM_Fs_2, YM_Ab_2, YM_Bb_2,     MI_C_3, MI_D_3, MI_E_3, MI_Fs_3, MI_Ab_3, MI_Bb_3, MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            _______,             YM_Db_2, YM_Eb_2, YM_F_2,  YM_G_2,  YM_A_2,  YM_B_2,     MI_Db_3, MI_Eb_3, MI_F_3,  MI_G_3, MI_A_3,  MI_B_3, MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* Half ch2, half ch1 (normal) */
    [_SEPAHALF] = LAYOUT(
            _______,           _______,                             _______, _______,
            _______,
        SHIFT_L, SHIFT_R,      YM_C_2, YM_D_2, YM_E_2,  YM_Fs_2, YM_Ab_2, YM_Bb_2, YM_C_3, YM_D_3, YM_E_3,       MI_Fs_3, MI_Ab_3, MI_Bb_3, MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            _______,               YM_Db_2, YM_Eb_2, YM_F_2,  YM_G_2,  YM_A_2,  YM_B_2, YM_Db_3, YM_Eb_3, YM_F_3,    MI_G_3, MI_A_3,  MI_B_3, MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* 2 octave on the left side is ch2, others are ch1 (normal) */
    [_SEPARIGHTOCT] = LAYOUT(
            _______,           _______,                             _______, _______,
            _______,
        SHIFT_L, SHIFT_R,      YM_C_2, YM_D_2, YM_E_2,  YM_Fs_2, YM_Ab_2, YM_Bb_2, YM_C_3, YM_D_3, YM_E_3, YM_Fs_3, YM_Ab_3, YM_Bb_3,      MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            _______,               YM_Db_2, YM_Eb_2, YM_F_2,  YM_G_2,  YM_A_2,  YM_B_2, YM_Db_3, YM_Eb_3, YM_F_3,  YM_G_3, YM_A_3,  YM_B_3,     MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* TRANS   This layer must locate 1 layer below _FN layer. */
    [_TRANS] = LAYOUT(
            _______,           _______,                             _______, _______,
            _______,
        MI_TRNSD, MI_TRNSU,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
            _______,               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
    ),

    /* Flip Base    SFIFTUP and SHIFT_L are swapped. */
    [_FLIPBASE] = LAYOUT(
            FN_MUTE,          MI_SUS,                             KC_VOLD, KC_VOLU,
            MI_BENDU,
        SHIFT_L, SHIFT_R,     MI_C_5, MI_Bb_4, MI_Ab_4,  MI_Fs_4, MI_E_4, MI_D_4, MI_C_4, MI_Bb_3, MI_Ab_3, MI_Fs_3, MI_E_3, MI_D_3, MI_C_3,  MI_Bb_2,  MI_Ab_2, MI_Fs_2, MI_E_2, MI_D_2, MI_C_2,
            MI_BENDD,           MI_B_4, MI_A_4, MI_G_4,  MI_F_4,  MI_Eb_4,  MI_Db_4, MI_B_3, MI_A_3, MI_G_3,  MI_F_3, MI_Eb_3,  MI_Db_3, MI_B_2, MI_A_2, MI_G_2,  MI_F_2,  MI_Eb_2,  MI_Db_2
    ),

    /* Flip Trans   This layer must locate 1 layer above _FLIPBASE layer.  MI_TRNSU and MI_TRNSD are swapped. */
    [_FLIPTRANS] = LAYOUT(
            _______,          _______,                             _______, _______,
            _______,
        MI_TRNSU, MI_TRNSD,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
            _______,               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
    ),

    [_FN] =  LAYOUT(
            _______,          XXXXXXX,                             RGB_RMOD, RGB_MOD,
            MI_VELU,
        MI_OCTD, MI_OCTU,     B_BASE,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, B_LEFT, XXXXXXX, XXXXXXX, B_CENTER, XXXXXXX, XXXXXXX, B_RIGHT, XXXXXXX, XXXXXXX, XXXXXXX, VERSION, XXXXXXX, B_FLIP,
            MI_VELD,               TGLINTR, TGLTRNS, TGLCHGR, XXXXXXX, XXXXXXX, RGB_SAD, RGB_SAI, RGB_HUD, RGB_HUI, RGB_SPD, RGB_SPI, RGB_VAD, RGB_VAI, RGB_RMOD, RGB_MOD, EEP_RST, TGLINDI, RGB_TOG
    )
};

// commom codes called from eeconfig_init_user() and keyboard_post_init_user().
void my_init(void){
    //  Set octave to MI_OCT_1
    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;
    default_layer_set(_LS_BASE);
    layer_state_set(_LS_BASE);

#ifdef RGB_MATRIX_ENABLE
    rgb_matrix_sethsv(HSV_BLUE);
    rgb_matrix_mode(RGB_MATRIX_CUSTOM_my_solid_reactive_col);
#endif  // RGB_MATRIX_ENABLE
}

void eeconfig_init_user(void) {  // EEPROM is getting reset!
    midi_init();

#ifdef RGB_MATRIX_ENABLE
    rgb_matrix_enable();
    rgb_matrix_set_speed(RGB_MATRIX_STARTUP_SPD);
#endif  // RGB_MATRIX_ENABLE
    my_init(); // commom codes called from eeconfig_init_user() and keyboard_post_init_user().
}

void keyboard_post_init_user(void) {
    for (uint8_t i = 0; i < MY_TONE_COUNT; i++) {
        my_tone_status[i] = MIDI_INVALID_NOTE;
    }
    my_init(); // commom codes called from eeconfig_init_user() and keyboard_post_init_user().
}

void reset_scale_indicator(void) {
    //  reset transpose value and scale_indicator_col to default.
    midi_config.transpose = 0;
    scale_indicator_col = DEFAULT_SCALE_COL;
    trans_mode_indicator_loc_sel = true;
}

void reset_all(void) {
    reset_scale_indicator();
    is_trans_mode = false;      //  trans mode is disabled by default.
}

void my_process_midi4single_note(uint8_t channel, uint16_t keycode, keyrecord_t *record, uint8_t *my_tone_status) {
    uint8_t  mytone    = keycode - YM_TONE_MIN;
    uint16_t mykeycode = mytone + MIDI_TONE_MIN;
    // uint16_t mykeycode = keycode - YM_TONE_MIN;
    // uint8_t  mytone    = mykeycode - MIDI_TONE_MIN;
    uint8_t  velocity  = midi_config.velocity;
    // uprintf("keycode=%u,mykeycode=%u,mytone =%u,velo = %u\n", keycode, mykeycode, mytone, velocity);
    if (record->event.pressed) {
        if (my_tone_status[mytone] == MIDI_INVALID_NOTE) {
            uint8_t note = midi_compute_note(mykeycode);
            midi_send_noteon(&midi_device, channel, note, velocity);
            dprintf("midi noteon channel:%d note:%d mytone:%d velocity:%d\n", channel, note, mytone, velocity);
            // uprintf("midi noteon channel:%d note:%d mytone:%d velocity:%d\n", channel, note, mytone, velocity);
            my_tone_status[mytone] = note;  // store root_note status.
        }
    } else {
        uint8_t note = my_tone_status[mytone];
        if (note != MIDI_INVALID_NOTE) {
            midi_send_noteoff(&midi_device, channel, note, velocity);
            dprintf("midi noteoff channel:%d note:%d velocity:%d\n", channel, note, velocity);
            // uprintf("midi noteoff channel:%d note:%d velocity:%d\n", channel, note, velocity);
        }
        my_tone_status[mytone] = MIDI_INVALID_NOTE;
    }
}

void select_layer_state_set(void) {
    switch (key_separator_col) {
        case _KEY01:
            if (is_trans_mode) {
                layer_state_set(_LS_TRANS);
            } else {
                layer_state_set(_LS_BASE);
            }
            break;

        case _KEY13:
            if (is_trans_mode) {
                layer_state_set(_LS_SEPALEFTOCT_T);
            } else {
                layer_state_set(_LS_SEPALEFTOCT);
            }
            break;

        case _KEY19:
            if (is_trans_mode) {
                layer_state_set(_LS_SEPAHALF_T);
            } else {
                layer_state_set(_LS_SEPAHALF);
            }
            break;

        case _KEY25:
            if (is_trans_mode) {
                layer_state_set(_LS_SEPARIGHTOCT_T);
            } else {
                layer_state_set(_LS_SEPARIGHTOCT);
            }
            break;

        case _KEY37:
            if (is_trans_mode) {
                layer_state_set(_LS_FLIPTRANS);
            } else {
                layer_state_set(_LS_FLIPBASE);
            }
            break;
    }
}


bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    // uprintf("keycode=%u, YM_C_3=%u, YM_Db_2 =%u, YM_MIN = %u, YM_MAX = %u\n", keycode, YM_C_3, YM_Db_2, YM_TONE_MIN, YM_TONE_MAX);
    switch (keycode) {
        case VERSION: // Output firmware info.
            if (record->event.pressed) {
                SEND_STRING(QMK_KEYBOARD ":" QMK_KEYMAP " @ " QMK_VERSION " | " QMK_BUILDDATE);
            }
            break;

        //  Layer-related settings.
        //  reset_scale_indicator() first, followed by each modification, and then change the default layer.

        //  1, separator column modification
        case B_BASE:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY01;
                select_layer_state_set();
            }
            break;

        case B_LEFT:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY13;
                select_layer_state_set();
            }
            break;

        case B_CENTER:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY19;
                select_layer_state_set();
            }
            break;

        case B_RIGHT:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY25;
                select_layer_state_set();
            }
            break;

        case B_FLIP:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY37;
                select_layer_state_set();
            }
            break;

        //  2, Toggle scale shift mode and transpose mode
        case TGLTRNS:
            if (record->event.pressed) {
                reset_scale_indicator();
                is_trans_mode = !is_trans_mode;
                select_layer_state_set();
            }
            break;

        //  SHIFT_L and SHIFT_R can be pressed only when layer is either _BASE, _FLIPBASE.
        case SHIFT_L:
            if (record->event.pressed) {
                switch (layer_state) {
                    case _LS_BASE:
                    case _LS_SEPALEFTOCT:
                    case _LS_SEPAHALF:
                    case _LS_SEPARIGHTOCT:
                    case _LS_FLIPBASE:
                        scale_indicator_col = shift_led_indicator_left(scale_indicator_col);
                        break;
                }
            }
            break;

        case SHIFT_R:
            if (record->event.pressed) {
                switch (layer_state) {
                    case _LS_BASE:
                    case _LS_SEPALEFTOCT:
                    case _LS_SEPAHALF:
                    case _LS_SEPARIGHTOCT:
                    case _LS_FLIPBASE:
                        scale_indicator_col = shift_led_indicator_right(scale_indicator_col);
                        break;
                }
            }
            break;

        case TGLINDI:
            if (record->event.pressed) {
                led_indicator_enable = !led_indicator_enable;
            }
            break;

        case TGLINTR:
            if (record->event.pressed) {
                switch (layer_state) {
                    //  main function of the TGLINTR part 1. alternate the status of trans_mode_indicator_loc_sel.
                    case _LS_TRANS          | (1UL << _FN):
                    case _LS_SEPALEFTOCT_T  | (1UL << _FN):
                    case _LS_SEPAHALF_T     | (1UL << _FN):
                    case _LS_SEPARIGHTOCT_T | (1UL << _FN):
                        trans_mode_indicator_loc_sel = !trans_mode_indicator_loc_sel;

                        //  when trans_mode_indicator_loc_sel == false, change the scale indicator and transpose.
                        scale_indicator_col = trans_mode_indicator_loc_sel ? 0:1;
                        // when TGLINTR is pressed, it also change the initial transpose setting to follow the scale indicator.
                        if (scale_indicator_col == 1) {
                            midi_config.transpose = -1;
                        } else {
                            midi_config.transpose = 0;
                        }
                        break;

                    //  main function of the TGLINTR part 2. alternate the status of trans_mode_indicator_loc_sel.
                    case _LS_FLIPTRANS      | (1UL << _FN):
                        trans_mode_indicator_loc_sel = !trans_mode_indicator_loc_sel;

                        //  when trans_mode_indicator_loc_sel == false, change the scale indicator and transpose.
                        scale_indicator_col = trans_mode_indicator_loc_sel ? 0:11;
                        // when TGLINTR is pressed, it also change the initial transpose setting to follow the scale indicator.
                        if (scale_indicator_col == 11) {
                            midi_config.transpose = -1;
                        } else {
                            midi_config.transpose = 0;
                        }
                        break;

                    //  special treatment when TGLINTR is pressed in _LS_FLIPBASE layer.
                    case _LS_FLIPBASE       | (1UL << _FN):   // when in FLIPBASE layer && non-Trans mode, change it to Trans mode.
                        trans_mode_indicator_loc_sel = false;
                        scale_indicator_col = 11;
                        midi_config.transpose = -1;
                        is_trans_mode = true;
                        select_layer_state_set();
                        break;


                    //  special treatment when TGLINTR is pressed in other non-Trans layer.
                    default :  // when other layers = non-Trans mode, change it to Trans mode.
                        trans_mode_indicator_loc_sel = false;
                        scale_indicator_col = 1;
                        midi_config.transpose = -1;
                        is_trans_mode = true;
                        select_layer_state_set();
                }
            }
            break;

        case TGLCHGR:
            if (record->event.pressed) {
                use_alt_ch_gr = !use_alt_ch_gr;
                if (use_alt_ch_gr) {
                    midi_config.channel = ALT_MAIN_CH_NUMBER;
                    midi_left_ch = ALT_SUB_CH_NUMBER;
                } else {  //  default
                    midi_config.channel = DEFAULT_MAIN_CH_NUMBER;
                    midi_left_ch = DEFAULT_SUB_CH_NUMBER;
                }
            }
            break;

        case  YM_TONE_MIN ... YM_TONE_MAX:  // MY tone
            // uprintf("keycode=%u, YM_C_3=%u, YM_Db_2 =%u, YM_MIN = %u, YM_MAX = %u\n", keycode, YM_C_3, YM_Db_2, YM_TONE_MIN, YM_TONE_MAX);
            //  DO NOT THROW BELOW into 'if (record->event.pressed) {}' STATEMENT SINCE IT IS USED IN THE FUNCTION BELOW.
            my_process_midi4single_note(midi_left_ch, keycode, record, my_tone_status);
            break;
    }
    return true;
}

#ifdef RGB_MATRIX_ENABLE
void set_led_scale_indicator(uint8_t r, uint8_t g, uint8_t b) {
    uint8_t max_scale_indicator_led_loop;
    uint8_t i;
    if (led_indicator_enable) {  //  turn on indicators when enabled.
        max_scale_indicator_led_loop = ( scale_indicator_col == DEFAULT_SCALE_COL ) ? 12 : 9;
        for (i = 0; i < max_scale_indicator_led_loop; i++) {
            rgb_matrix_set_color(led_scale_indicator[scale_indicator_col][i], r, g, b);
        }
    }
}

void rgb_matrix_indicators_user(void) {
    // uint32_t mode = rgblight_get_mode();

    if (rgb_matrix_is_enabled()) {  // turn the lights on when it is enabled.

        // uint8_t max_scale_indicator_led_loop;
        uint8_t i;

        switch (layer_state) {
            case _LS_BASE:
                set_led_scale_indicator(BASE_LAYER_COLOR);
                break;

            case _LS_FLIPBASE:
                set_led_scale_indicator(FLIPB_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY37][i], FLIP_BORDER_COLOR);    //  right end
                }
                break;

            case _LS_TRANS:
                set_led_scale_indicator(TRANS_LAYER_COLOR);
                break;

            case _LS_SEPALEFTOCT_T:
                set_led_scale_indicator(SEPALEFT_T_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY13][i], FLIP_BORDER_COLOR);    //  Left
                }
                break;

            case _LS_SEPAHALF_T:
                set_led_scale_indicator(SEPAHALF_T_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY19][i], FLIP_BORDER_COLOR);    //  Center
                }
                break;

            case _LS_SEPARIGHTOCT_T:
                set_led_scale_indicator(SEPARIGHT_T_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY25][i], FLIP_BORDER_COLOR);    //  Right
                }
                break;

            case _LS_FLIPTRANS:
                set_led_scale_indicator(FLIPT_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY37][i], FLIP_BORDER_COLOR);    //  right end
                }
                break;

            case _LS_SEPALEFTOCT:
                set_led_scale_indicator(SEPALEFT_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY13][i], FLIP_BORDER_COLOR);    //  Left
                }
                break;

            case _LS_SEPAHALF:
                set_led_scale_indicator(SEPAHALF_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY19][i], FLIP_BORDER_COLOR);    //  Center
                }
                break;

            case _LS_SEPARIGHTOCT:
                set_led_scale_indicator(SEPARIGHT_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY25][i], FLIP_BORDER_COLOR);    //  Right
                }
                break;

            case _LS_FN ... _LS_MAX:  //  When Mute Button is long-pressed, the previous layers are still active.
                for (i = 1; i < 5; i++) {
                    rgb_matrix_set_color(i, RGB_DARKSPRINGGREEN);  //  up(1) down(4) left(3) right(2)  keys
                }
                rgb_matrix_set_color(led_single_col_indicator[_KEY02][0], RGB_DARKSPRINGGREEN);   //  TGLTRNS
                rgb_matrix_set_color(led_single_col_indicator[_KEY04][0], RGB_DARKSPRINGGREEN);   //  TGLINTR
                rgb_matrix_set_color(led_single_col_indicator[_KEY06][0], RGB_DARKSPRINGGREEN);   //  TGLCHGR

                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY01][i], BASE_LAYER_COLOR);   //  B_BASE

                    rgb_matrix_set_color(led_single_col_indicator[_KEY13][i], SEPALEFT_LAYER_COLOR);   //  B_LEFT

                    rgb_matrix_set_color(led_single_col_indicator[_KEY19][i], SEPAHALF_LAYER_COLOR);   //  B_CENTER

                    rgb_matrix_set_color(led_single_col_indicator[_KEY25][i], SEPARIGHT_LAYER_COLOR);   //  B_RIGHT

                    rgb_matrix_set_color(led_single_col_indicator[_KEY37][i], FLIPB_LAYER_COLOR);   //  B_FLIP
                }

                for (i = _KEY12; i < _KEY37; i+=2){  //  even numbers from _KEY12 to _KEY36 are LED related settings.
                    // turn on the bottom row only to keep the visibility of the RGB MATRIX effects.
                    rgb_matrix_set_color(led_single_col_indicator[i][0], RGB_DARKSPRINGGREEN);  //       //  LED related settings.
                }
                break;
        }
    }
}
#endif  // RGB_MATRIX_ENABLE

A keyboards/chromatonemini/keymaps/led/readme.md => keyboards/chromatonemini/keymaps/led/readme.md +1 -0
@@ 0,0 1,1 @@
# The LED enabled, customized keymap for chromatonemini

A keyboards/chromatonemini/keymaps/led/rules.mk => keyboards/chromatonemini/keymaps/led/rules.mk +3 -0
@@ 0,0 1,3 @@
RGB_MATRIX_ENABLE = yes     # Use RGB matrix (Don't enable this when RGBLIGHT_ENABLE is used.)
RGB_MATRIX_CUSTOM_KB = yes  #
VIA_ENABLE = no             # too many layers to use VIA...

A keyboards/chromatonemini/keymaps/party/keymap.c => keyboards/chromatonemini/keymaps/party/keymap.c +684 -0
@@ 0,0 1,684 @@
/* Copyright 2021 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"

//  define which MIDI ch to use.
//  Note that (actual MIDI ch# - 1) -> 0 .. 15 is used for coding.
//  ch1
#define DEFAULT_MAIN_CH_NUMBER 0
//  ch3
#define DEFAULT_SUB_CH_NUMBER  2
//  ch2
#define ALT_MAIN_CH_NUMBER     1
//  ch4
#define ALT_SUB_CH_NUMBER      3
static uint8_t midi_left_ch = DEFAULT_SUB_CH_NUMBER;       //  By default, DEFAULT_SUB_CH_NUMBER is used for left side when separated.

//  By default( when use_alt_ch_gr == false), DEFAULT ch group (DEFAULT_MAIN_CH_NUMBER for entirely, or right side when separated, DEFAULT_SUB_CH_NUMBER for left side) is used.
//  When false, ALT ch group (ALT_MAIN_CH_NUMBER for entirely, or right side when separated, ALT_SUB_CH_NUMBER for left side) is used.
static bool use_alt_ch_gr = false;

// Defines names for use in layer keycodes and the keymap
enum layer_names {
    _BASE,              //  Base layer, shift mode, single channel.
    _SEPALEFTOCT,       //  1st oct channel separated version. Shift mode.
    _SEPAHALF,          //  Half channel separated version. Shift mode.
    _SEPARIGHTOCT,      //  2nd oct channel separated version. Shift mode.
    _TRANS,             //  Transpose feature is enabled instead of shift mode, single channel.
    _FLIPBASE,          //  Horizontal flipped version entirely. single channel.
    _FLIPTRANS,         //  Horizontal flipped version entirely. Transpose is used. single channel.
    _FN                 //  FuNction layer. This must be at the end of the enumurate to use the range from _LS_FN ... _LS_FN_MAX for FN layer LED settings.
};

//  Layer State
#define _LS_BASE           (1UL << _BASE)
#define _LS_SEPALEFTOCT    (1UL << _SEPALEFTOCT)
#define _LS_SEPAHALF       (1UL << _SEPAHALF)
#define _LS_SEPARIGHTOCT   (1UL << _SEPARIGHTOCT)
#define _LS_FLIPBASE       (1UL << _FLIPBASE)

#define _LS_TRANS          (1UL << _BASE         | 1UL << _TRANS)
#define _LS_SEPALEFTOCT_T  (1UL << _SEPALEFTOCT  | 1UL << _TRANS)
#define _LS_SEPAHALF_T     (1UL << _SEPAHALF     | 1UL << _TRANS)
#define _LS_SEPARIGHTOCT_T (1UL << _SEPARIGHTOCT | 1UL << _TRANS)
#define _LS_FLIPTRANS      (1UL << _FLIPBASE     | 1UL << _FLIPTRANS)

#define _LS_FN             (1UL << _FN)
#define _LS_MAX            (_LS_FN << 1)

//  Don't change the DEFAULT_SCALE_COL value below. It must be 0.
#define DEFAULT_SCALE_COL 0
static uint8_t scale_indicator_col = DEFAULT_SCALE_COL;
static bool trans_mode_indicator_loc_sel = true;  // when it is true, the location is _KEY01, _KEY13, ...

//  use led indicator or not.
static bool led_indicator_enable = true;

// Defines the keycodes used by our macros in process_record_user
enum custom_keycodes {
    SHIFT_L = SAFE_RANGE,
    SHIFT_R,
    TGLINDI,  //  ToGgLe INDIcator
    TGLINTR,  //  ToGgLe INdicator location {(_KEY01, _KEY13, _KEY25, _KEY37) or (_KEY02, _KEY14, _KEY26) / (_KEY12, _KEY24, _KEY36)}in TRans mode
    TGLTRNS,  //  ToGgLe TRaNS and shift
    TGLCHGR,  //  ToGgLe CH GRoup
    VERSION,

    B_BASE,            //  border set to the left end.
    B_LEFT,            //  border set to the 1st left octave.
    B_CENTER,          //  border set to the center.
    B_RIGHT,           //  border set to the 1st right octave.
    B_FLIP,            //  border set to the right end.

    // MY tone for _FLIPHALF and _FLIPLEFTOCT layers to distinguish the notes to avoid sustain effect, etc.
    // Since they are flipped, their subscripts are not MY_ but YM_, to make them easier to tell.
    YM_TONE_MIN,

    YM_C = YM_TONE_MIN,
    YM_Cs,
    YM_Db = YM_Cs,
    YM_D,
    YM_Ds,
    YM_Eb = YM_Ds,
    YM_E,
    YM_F,
    YM_Fs,
    YM_Gb = YM_Fs,
    YM_G,
    YM_Gs,
    YM_Ab = YM_Gs,
    YM_A,
    YM_As,
    YM_Bb = YM_As,
    YM_B,

    YM_C_1,
    YM_Cs_1,
    YM_Db_1 = YM_Cs_1,
    YM_D_1,
    YM_Ds_1,
    YM_Eb_1 = YM_Ds_1,
    YM_E_1,
    YM_F_1,
    YM_Fs_1,
    YM_Gb_1 = YM_Fs_1,
    YM_G_1,
    YM_Gs_1,
    YM_Ab_1 = YM_Gs_1,
    YM_A_1,
    YM_As_1,
    YM_Bb_1 = YM_As_1,
    YM_B_1,

    YM_C_2,
    YM_Cs_2,
    YM_Db_2 = YM_Cs_2,
    YM_D_2,
    YM_Ds_2,
    YM_Eb_2 = YM_Ds_2,
    YM_E_2,
    YM_F_2,
    YM_Fs_2,
    YM_Gb_2 = YM_Fs_2,
    YM_G_2,
    YM_Gs_2,
    YM_Ab_2 = YM_Gs_2,
    YM_A_2,
    YM_As_2,
    YM_Bb_2 = YM_As_2,
    YM_B_2,

    YM_C_3,
    YM_Cs_3,
    YM_Db_3 = YM_Cs_3,
    YM_D_3,
    YM_Ds_3,
    YM_Eb_3 = YM_Ds_3,
    YM_E_3,
    YM_F_3,
    YM_Fs_3,
    YM_Gb_3 = YM_Fs_3,
    YM_G_3,
    YM_Gs_3,
    YM_Ab_3 = YM_Gs_3,
    YM_A_3,
    YM_As_3,
    YM_Bb_3 = YM_As_3,
    YM_B_3,

    YM_C_4,
    YM_Cs_4,
    YM_Db_4 = YM_Cs_4,
    YM_D_4,
    YM_Ds_4,
    YM_Eb_4 = YM_Ds_4,
    YM_E_4,
    YM_F_4,
    YM_Fs_4,
    YM_Gb_4 = YM_Fs_4,
    YM_G_4,
    YM_Gs_4,
    YM_Ab_4 = YM_Gs_4,
    YM_A_4,
    YM_As_4,
    YM_Bb_4 = YM_As_4,
    YM_B_4,

    YM_C_5,
    YM_Cs_5,
    YM_Db_5 = YM_Cs_5,
    YM_D_5,
    YM_Ds_5,
    YM_Eb_5 = YM_Ds_5,
    YM_E_5,
    YM_F_5,
    YM_Fs_5,
    YM_Gb_5 = YM_Fs_5,
    YM_G_5,
    YM_Gs_5,
    YM_Ab_5 = YM_Gs_5,
    YM_A_5,
    YM_As_5,
    YM_Bb_5 = YM_As_5,
    YM_B_5,

    YM_C_6,
    YM_TONE_MAX = YM_C_6
};

#define MY_TONE_COUNT (YM_TONE_MAX - YM_TONE_MIN + 1)
static uint8_t my_tone_status[MY_TONE_COUNT];

// 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;
static bool is_trans_mode = false;     //  By default, shift mode is chosen.

static uint8_t key_separator_col = _KEY01;  //  (_KEY01 .. _KEY37).     By default, _KEY01 (= _BASE layer) is chosen. _KEY13 = *LEFT, _KEY19 = *HALF, _KEY25 = *RIGHT, _KEY37 = _FLIPBASE and _FLIPTRANS.

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Base */
    [_BASE] = LAYOUT(
            FN_MUTE,         MI_SUS,                             KC_VOLD, KC_VOLU,
            MI_BENDU,
        SHIFT_L, SHIFT_R,    MI_C_2, MI_D_2, MI_E_2,  MI_Fs_2, MI_Ab_2, MI_Bb_2, MI_C_3, MI_D_3, MI_E_3, MI_Fs_3, MI_Ab_3, MI_Bb_3, MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            MI_BENDD,           MI_Db_2, MI_Eb_2, MI_F_2,  MI_G_2,  MI_A_2,  MI_B_2, MI_Db_3, MI_Eb_3, MI_F_3,  MI_G_3, MI_A_3,  MI_B_3, MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* 1 octave on the left side is ch2, others are ch1 (normal) */
    [_SEPALEFTOCT] = LAYOUT(
            _______,          _______,                             _______, _______,
            _______,
        SHIFT_L, SHIFT_R,     YM_C_2, YM_D_2, YM_E_2,  YM_Fs_2, YM_Ab_2, YM_Bb_2,     MI_C_3, MI_D_3, MI_E_3, MI_Fs_3, MI_Ab_3, MI_Bb_3, MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            _______,             YM_Db_2, YM_Eb_2, YM_F_2,  YM_G_2,  YM_A_2,  YM_B_2,     MI_Db_3, MI_Eb_3, MI_F_3,  MI_G_3, MI_A_3,  MI_B_3, MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* Half ch2, half ch1 (normal) */
    [_SEPAHALF] = LAYOUT(
            _______,           _______,                             _______, _______,
            _______,
        SHIFT_L, SHIFT_R,      YM_C_2, YM_D_2, YM_E_2,  YM_Fs_2, YM_Ab_2, YM_Bb_2, YM_C_3, YM_D_3, YM_E_3,       MI_Fs_3, MI_Ab_3, MI_Bb_3, MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            _______,               YM_Db_2, YM_Eb_2, YM_F_2,  YM_G_2,  YM_A_2,  YM_B_2, YM_Db_3, YM_Eb_3, YM_F_3,    MI_G_3, MI_A_3,  MI_B_3, MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* 2 octave on the left side is ch2, others are ch1 (normal) */
    [_SEPARIGHTOCT] = LAYOUT(
            _______,           _______,                             _______, _______,
            _______,
        SHIFT_L, SHIFT_R,      YM_C_2, YM_D_2, YM_E_2,  YM_Fs_2, YM_Ab_2, YM_Bb_2, YM_C_3, YM_D_3, YM_E_3, YM_Fs_3, YM_Ab_3, YM_Bb_3,      MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            _______,               YM_Db_2, YM_Eb_2, YM_F_2,  YM_G_2,  YM_A_2,  YM_B_2, YM_Db_3, YM_Eb_3, YM_F_3,  YM_G_3, YM_A_3,  YM_B_3,     MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* TRANS   This layer must locate 1 layer below _FN layer. */
    [_TRANS] = LAYOUT(
            _______,           _______,                             _______, _______,
            _______,
        MI_TRNSD, MI_TRNSU,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
            _______,               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
    ),

    /* Flip Base    SFIFTUP and SHIFT_L are swapped. */
    [_FLIPBASE] = LAYOUT(
            FN_MUTE,          MI_SUS,                             KC_VOLD, KC_VOLU,
            MI_BENDU,
        SHIFT_L, SHIFT_R,     MI_C_5, MI_Bb_4, MI_Ab_4,  MI_Fs_4, MI_E_4, MI_D_4, MI_C_4, MI_Bb_3, MI_Ab_3, MI_Fs_3, MI_E_3, MI_D_3, MI_C_3,  MI_Bb_2,  MI_Ab_2, MI_Fs_2, MI_E_2, MI_D_2, MI_C_2,
            MI_BENDD,           MI_B_4, MI_A_4, MI_G_4,  MI_F_4,  MI_Eb_4,  MI_Db_4, MI_B_3, MI_A_3, MI_G_3,  MI_F_3, MI_Eb_3,  MI_Db_3, MI_B_2, MI_A_2, MI_G_2,  MI_F_2,  MI_Eb_2,  MI_Db_2
    ),

    /* Flip Trans   This layer must locate 1 layer above _FLIPBASE layer.  MI_TRNSU and MI_TRNSD are swapped. */
    [_FLIPTRANS] = LAYOUT(
            _______,          _______,                             _______, _______,
            _______,
        MI_TRNSU, MI_TRNSD,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
            _______,               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
    ),

    [_FN] =  LAYOUT(
            _______,          XXXXXXX,                             RGB_RMOD, RGB_MOD,
            MI_VELU,
        MI_OCTD, MI_OCTU,     B_BASE,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, B_LEFT, XXXXXXX, XXXXXXX, B_CENTER, XXXXXXX, XXXXXXX, B_RIGHT, XXXXXXX, XXXXXXX, XXXXXXX, VERSION, XXXXXXX, B_FLIP,
            MI_VELD,               TGLINTR, TGLTRNS, TGLCHGR, XXXXXXX, XXXXXXX, RGB_SAD, RGB_SAI, RGB_HUD, RGB_HUI, RGB_SPD, RGB_SPI, RGB_VAD, RGB_VAI, RGB_RMOD, RGB_MOD, EEP_RST, TGLINDI, RGB_TOG
    )
};

// commom codes called from eeconfig_init_user() and keyboard_post_init_user().
void my_init(void){
    //  Set octave to MI_OCT_1
    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;
    default_layer_set(_LS_BASE);
    layer_state_set(_LS_BASE);

#ifdef RGB_MATRIX_ENABLE
    rgb_matrix_sethsv(HSV_BLUE);
    //  party mode (for LED soldering test. Enable rainbow color effect, and disable led_indicator to check all LEDs)
    rgb_matrix_mode(RGB_MATRIX_RAINBOW_MOVING_CHEVRON);
    led_indicator_enable = false;
#endif  // RGB_MATRIX_ENABLE
}

void eeconfig_init_user(void) {  // EEPROM is getting reset!
    midi_init();

#ifdef RGB_MATRIX_ENABLE
    rgb_matrix_enable();
    rgb_matrix_set_speed(RGB_MATRIX_STARTUP_SPD);
#endif  // RGB_MATRIX_ENABLE
    my_init(); // commom codes called from eeconfig_init_user() and keyboard_post_init_user().
}

void keyboard_post_init_user(void) {
    for (uint8_t i = 0; i < MY_TONE_COUNT; i++) {
        my_tone_status[i] = MIDI_INVALID_NOTE;
    }
    my_init(); // commom codes called from eeconfig_init_user() and keyboard_post_init_user().
}

void reset_scale_indicator(void) {
    //  reset transpose value and scale_indicator_col to default.
    midi_config.transpose = 0;
    scale_indicator_col = DEFAULT_SCALE_COL;
    trans_mode_indicator_loc_sel = true;
}

void reset_all(void) {
    reset_scale_indicator();
    is_trans_mode = false;      //  trans mode is disabled by default.
}

void my_process_midi4single_note(uint8_t channel, uint16_t keycode, keyrecord_t *record, uint8_t *my_tone_status) {
    uint8_t  mytone    = keycode - YM_TONE_MIN;
    uint16_t mykeycode = mytone + MIDI_TONE_MIN;
    // uint16_t mykeycode = keycode - YM_TONE_MIN;
    // uint8_t  mytone    = mykeycode - MIDI_TONE_MIN;
    uint8_t  velocity  = midi_config.velocity;
    // uprintf("keycode=%u,mykeycode=%u,mytone =%u,velo = %u\n", keycode, mykeycode, mytone, velocity);
    if (record->event.pressed) {
        if (my_tone_status[mytone] == MIDI_INVALID_NOTE) {
            uint8_t note = midi_compute_note(mykeycode);
            midi_send_noteon(&midi_device, channel, note, velocity);
            dprintf("midi noteon channel:%d note:%d mytone:%d velocity:%d\n", channel, note, mytone, velocity);
            // uprintf("midi noteon channel:%d note:%d mytone:%d velocity:%d\n", channel, note, mytone, velocity);
            my_tone_status[mytone] = note;  // store root_note status.
        }
    } else {
        uint8_t note = my_tone_status[mytone];
        if (note != MIDI_INVALID_NOTE) {
            midi_send_noteoff(&midi_device, channel, note, velocity);
            dprintf("midi noteoff channel:%d note:%d velocity:%d\n", channel, note, velocity);
            // uprintf("midi noteoff channel:%d note:%d velocity:%d\n", channel, note, velocity);
        }
        my_tone_status[mytone] = MIDI_INVALID_NOTE;
    }
}

void select_layer_state_set(void) {
    switch (key_separator_col) {
        case _KEY01:
            if (is_trans_mode) {
                layer_state_set(_LS_TRANS);
            } else {
                layer_state_set(_LS_BASE);
            }
            break;

        case _KEY13:
            if (is_trans_mode) {
                layer_state_set(_LS_SEPALEFTOCT_T);
            } else {
                layer_state_set(_LS_SEPALEFTOCT);
            }
            break;

        case _KEY19:
            if (is_trans_mode) {
                layer_state_set(_LS_SEPAHALF_T);
            } else {
                layer_state_set(_LS_SEPAHALF);
            }
            break;

        case _KEY25:
            if (is_trans_mode) {
                layer_state_set(_LS_SEPARIGHTOCT_T);
            } else {
                layer_state_set(_LS_SEPARIGHTOCT);
            }
            break;

        case _KEY37:
            if (is_trans_mode) {
                layer_state_set(_LS_FLIPTRANS);
            } else {
                layer_state_set(_LS_FLIPBASE);
            }
            break;
    }
}


bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    // uprintf("keycode=%u, YM_C_3=%u, YM_Db_2 =%u, YM_MIN = %u, YM_MAX = %u\n", keycode, YM_C_3, YM_Db_2, YM_TONE_MIN, YM_TONE_MAX);
    switch (keycode) {
        case VERSION: // Output firmware info.
            if (record->event.pressed) {
                SEND_STRING(QMK_KEYBOARD ":" QMK_KEYMAP " @ " QMK_VERSION " | " QMK_BUILDDATE);
            }
            break;

        //  Layer-related settings.
        //  reset_scale_indicator() first, followed by each modification, and then change the default layer.

        //  1, separator column modification
        case B_BASE:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY01;
                select_layer_state_set();
            }
            break;

        case B_LEFT:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY13;
                select_layer_state_set();
            }
            break;

        case B_CENTER:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY19;
                select_layer_state_set();
            }
            break;

        case B_RIGHT:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY25;
                select_layer_state_set();
            }
            break;

        case B_FLIP:
            if (record->event.pressed) {
                reset_all();
                key_separator_col = _KEY37;
                select_layer_state_set();
            }
            break;

        //  2, Toggle scale shift mode and transpose mode
        case TGLTRNS:
            if (record->event.pressed) {
                reset_scale_indicator();
                is_trans_mode = !is_trans_mode;
                select_layer_state_set();
            }
            break;

        //  SHIFT_L and SHIFT_R can be pressed only when layer is either _BASE, _FLIPBASE.
        case SHIFT_L:
            if (record->event.pressed) {
                switch (layer_state) {
                    case _LS_BASE:
                    case _LS_SEPALEFTOCT:
                    case _LS_SEPAHALF:
                    case _LS_SEPARIGHTOCT:
                    case _LS_FLIPBASE:
                        scale_indicator_col = shift_led_indicator_left(scale_indicator_col);
                        break;
                }
            }
            break;

        case SHIFT_R:
            if (record->event.pressed) {
                switch (layer_state) {
                    case _LS_BASE:
                    case _LS_SEPALEFTOCT:
                    case _LS_SEPAHALF:
                    case _LS_SEPARIGHTOCT:
                    case _LS_FLIPBASE:
                        scale_indicator_col = shift_led_indicator_right(scale_indicator_col);
                        break;
                }
            }
            break;

        case TGLINDI:
            if (record->event.pressed) {
                led_indicator_enable = !led_indicator_enable;
            }
            break;

        case TGLINTR:
            if (record->event.pressed) {
                switch (layer_state) {
                    //  main function of the TGLINTR part 1. alternate the status of trans_mode_indicator_loc_sel.
                    case _LS_TRANS          | (1UL << _FN):
                    case _LS_SEPALEFTOCT_T  | (1UL << _FN):
                    case _LS_SEPAHALF_T     | (1UL << _FN):
                    case _LS_SEPARIGHTOCT_T | (1UL << _FN):
                        trans_mode_indicator_loc_sel = !trans_mode_indicator_loc_sel;

                        //  when trans_mode_indicator_loc_sel == false, change the scale indicator and transpose.
                        scale_indicator_col = trans_mode_indicator_loc_sel ? 0:1;
                        // when TGLINTR is pressed, it also change the initial transpose setting to follow the scale indicator.
                        if (scale_indicator_col == 1) {
                            midi_config.transpose = -1;
                        } else {
                            midi_config.transpose = 0;
                        }
                        break;

                    //  main function of the TGLINTR part 2. alternate the status of trans_mode_indicator_loc_sel.
                    case _LS_FLIPTRANS      | (1UL << _FN):
                        trans_mode_indicator_loc_sel = !trans_mode_indicator_loc_sel;

                        //  when trans_mode_indicator_loc_sel == false, change the scale indicator and transpose.
                        scale_indicator_col = trans_mode_indicator_loc_sel ? 0:11;
                        // when TGLINTR is pressed, it also change the initial transpose setting to follow the scale indicator.
                        if (scale_indicator_col == 11) {
                            midi_config.transpose = -1;
                        } else {
                            midi_config.transpose = 0;
                        }
                        break;

                    //  special treatment when TGLINTR is pressed in _LS_FLIPBASE layer.
                    case _LS_FLIPBASE       | (1UL << _FN):   // when in FLIPBASE layer && non-Trans mode, change it to Trans mode.
                        trans_mode_indicator_loc_sel = false;
                        scale_indicator_col = 11;
                        midi_config.transpose = -1;
                        is_trans_mode = true;
                        select_layer_state_set();
                        break;


                    //  special treatment when TGLINTR is pressed in other non-Trans layer.
                    default :  // when other layers = non-Trans mode, change it to Trans mode.
                        trans_mode_indicator_loc_sel = false;
                        scale_indicator_col = 1;
                        midi_config.transpose = -1;
                        is_trans_mode = true;
                        select_layer_state_set();
                }
            }
            break;

        case TGLCHGR:
            if (record->event.pressed) {
                use_alt_ch_gr = !use_alt_ch_gr;
                if (use_alt_ch_gr) {
                    midi_config.channel = ALT_MAIN_CH_NUMBER;
                    midi_left_ch = ALT_SUB_CH_NUMBER;
                } else {  //  default
                    midi_config.channel = DEFAULT_MAIN_CH_NUMBER;
                    midi_left_ch = DEFAULT_SUB_CH_NUMBER;
                }
            }
            break;

        case  YM_TONE_MIN ... YM_TONE_MAX:  // MY tone
            // uprintf("keycode=%u, YM_C_3=%u, YM_Db_2 =%u, YM_MIN = %u, YM_MAX = %u\n", keycode, YM_C_3, YM_Db_2, YM_TONE_MIN, YM_TONE_MAX);
            //  DO NOT THROW BELOW into 'if (record->event.pressed) {}' STATEMENT SINCE IT IS USED IN THE FUNCTION BELOW.
            my_process_midi4single_note(midi_left_ch, keycode, record, my_tone_status);
            break;
    }
    return true;
}

#ifdef RGB_MATRIX_ENABLE
void set_led_scale_indicator(uint8_t r, uint8_t g, uint8_t b) {
    uint8_t max_scale_indicator_led_loop;
    uint8_t i;
    if (led_indicator_enable) {  //  turn on indicators when enabled.
        max_scale_indicator_led_loop = ( scale_indicator_col == DEFAULT_SCALE_COL ) ? 12 : 9;
        for (i = 0; i < max_scale_indicator_led_loop; i++) {
            rgb_matrix_set_color(led_scale_indicator[scale_indicator_col][i], r, g, b);
        }
    }
}

void rgb_matrix_indicators_user(void) {
    // uint32_t mode = rgblight_get_mode();

    if (rgb_matrix_is_enabled()) {  // turn the lights on when it is enabled.

        // uint8_t max_scale_indicator_led_loop;
        uint8_t i;

        switch (layer_state) {
            case _LS_BASE:
                set_led_scale_indicator(BASE_LAYER_COLOR);
                break;

            case _LS_FLIPBASE:
                set_led_scale_indicator(FLIPB_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY37][i], FLIP_BORDER_COLOR);    //  right end
                }
                break;

            case _LS_TRANS:
                set_led_scale_indicator(TRANS_LAYER_COLOR);
                break;

            case _LS_SEPALEFTOCT_T:
                set_led_scale_indicator(SEPALEFT_T_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY13][i], FLIP_BORDER_COLOR);    //  Left
                }
                break;

            case _LS_SEPAHALF_T:
                set_led_scale_indicator(SEPAHALF_T_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY19][i], FLIP_BORDER_COLOR);    //  Center
                }
                break;

            case _LS_SEPARIGHTOCT_T:
                set_led_scale_indicator(SEPARIGHT_T_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY25][i], FLIP_BORDER_COLOR);    //  Right
                }
                break;

            case _LS_FLIPTRANS:
                set_led_scale_indicator(FLIPT_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY37][i], FLIP_BORDER_COLOR);    //  right end
                }
                break;

            case _LS_SEPALEFTOCT:
                set_led_scale_indicator(SEPALEFT_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY13][i], FLIP_BORDER_COLOR);    //  Left
                }
                break;

            case _LS_SEPAHALF:
                set_led_scale_indicator(SEPAHALF_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY19][i], FLIP_BORDER_COLOR);    //  Center
                }
                break;

            case _LS_SEPARIGHTOCT:
                set_led_scale_indicator(SEPARIGHT_LAYER_COLOR);
                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY25][i], FLIP_BORDER_COLOR);    //  Right
                }
                break;

            case _LS_FN ... _LS_MAX:  //  When Mute Button is long-pressed, the previous layers are still active.
                for (i = 1; i < 5; i++) {
                    rgb_matrix_set_color(i, RGB_DARKSPRINGGREEN);  //  up(1) down(4) left(3) right(2)  keys
                }
                rgb_matrix_set_color(led_single_col_indicator[_KEY02][0], RGB_DARKSPRINGGREEN);   //  TGLTRNS
                rgb_matrix_set_color(led_single_col_indicator[_KEY04][0], RGB_DARKSPRINGGREEN);   //  TGLINTR
                rgb_matrix_set_color(led_single_col_indicator[_KEY06][0], RGB_DARKSPRINGGREEN);   //  TGLCHGR

                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY01][i], BASE_LAYER_COLOR);   //  B_BASE

                    rgb_matrix_set_color(led_single_col_indicator[_KEY13][i], SEPALEFT_LAYER_COLOR);   //  B_LEFT

                    rgb_matrix_set_color(led_single_col_indicator[_KEY19][i], SEPAHALF_LAYER_COLOR);   //  B_CENTER

                    rgb_matrix_set_color(led_single_col_indicator[_KEY25][i], SEPARIGHT_LAYER_COLOR);   //  B_RIGHT

                    rgb_matrix_set_color(led_single_col_indicator[_KEY37][i], FLIPB_LAYER_COLOR);   //  B_FLIP
                }

                for (i = _KEY12; i < _KEY37; i+=2){  //  even numbers from _KEY12 to _KEY36 are LED related settings.
                    // turn on the bottom row only to keep the visibility of the RGB MATRIX effects.
                    rgb_matrix_set_color(led_single_col_indicator[i][0], RGB_DARKSPRINGGREEN);  //       //  LED related settings.
                }
                break;
        }
    }
}
#endif  // RGB_MATRIX_ENABLE

A keyboards/chromatonemini/keymaps/party/readme.md => keyboards/chromatonemini/keymaps/party/readme.md +6 -0
@@ 0,0 1,6 @@
# The LED enabled, party mode for testing LED soldering, customized keymap for chromatonemini.

The main differences between "led" and "party" are:  
//  party mode (for LED soldering test. Enable rainbow color effect, and disable led_indicator to check all LEDs)
rgb_matrix_mode(RGB_MATRIX_RAINBOW_MOVING_CHEVRON);  
led_indicator_enable = false;

A keyboards/chromatonemini/keymaps/party/rules.mk => keyboards/chromatonemini/keymaps/party/rules.mk +3 -0
@@ 0,0 1,3 @@
RGB_MATRIX_ENABLE = yes     # Use RGB matrix (Don't enable this when RGBLIGHT_ENABLE is used.)
RGB_MATRIX_CUSTOM_KB = yes  #
VIA_ENABLE = no             # too many layers to use VIA...

A keyboards/chromatonemini/keymaps/via/config.h => keyboards/chromatonemini/keymaps/via/config.h +4 -0
@@ 0,0 1,4 @@
#pragma once

// How many layers to use with VIA / Remap.
#define DYNAMIC_KEYMAP_LAYER_COUNT 4 // default:4

A keyboards/chromatonemini/keymaps/via/keymap.c => keyboards/chromatonemini/keymaps/via/keymap.c +275 -0
@@ 0,0 1,275 @@
/* Copyright 2021 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"

// Defines names for use in layer keycodes and the keymap
enum layer_names {
    _BASE,              //  Base layer, shift mode, single channel.
    _TRANS,             //  Transpose feature is enabled instead of shift mode, single channel.
    _RESERVE,           //  RESERVE
    _FN                 //  FuNction layer. This must be at the end of the enumurate to use the range from _LS_FN ... _LS_FN_MAX for FN layer LED settings.
};

//  Layer State
#define _LS_BASE           (1UL << _BASE)
#define _LS_TRANS          (1UL << _BASE         | 1UL << _TRANS)

#define _LS_FN             (1UL << _FN)
#define _LS_MAX            (_LS_FN << 1)

//  Don't change the DEFAULT_SCALE_COL value below. It must be 0.
#define DEFAULT_SCALE_COL 0
static uint8_t scale_indicator_col = DEFAULT_SCALE_COL;
static bool trans_mode_indicator_loc_sel = true;  // when it is true, the location is _KEY01, _KEY13, ...

//  use led indicator or not.
static bool led_indicator_enable = true;

// Defines the keycodes used by our macros in process_record_user
enum custom_keycodes {
    SHIFT_L = USER00,
    SHIFT_R,
    TGLINDI,  //  ToGgLe INDIcator
    TGLINTR,  //  ToGgLe INdicator location {(_KEY01, _KEY13, _KEY25, _KEY37) or (_KEY02, _KEY14, _KEY26) / (_KEY12, _KEY24, _KEY36)}in TRans mode
    TGLTRNS,  //  ToGgLe TRaNS and shift

    B_BASE,            //  border set to the left end.
    VERSION
};

// 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;
static bool is_trans_mode = false;     //  By default, shift mode is chosen.

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Base */
    [_BASE] = LAYOUT(
            FN_MUTE,         MI_SUS,                             KC_VOLD, KC_VOLU,
            MI_BENDU,
        SHIFT_L, SHIFT_R,    MI_C_2, MI_D_2, MI_E_2,  MI_Fs_2, MI_Ab_2, MI_Bb_2, MI_C_3, MI_D_3, MI_E_3, MI_Fs_3, MI_Ab_3, MI_Bb_3, MI_C_4,  MI_D_4,  MI_E_4, MI_Fs_4, MI_Ab_4, MI_Bb_4, MI_C_5,
            MI_BENDD,           MI_Db_2, MI_Eb_2, MI_F_2,  MI_G_2,  MI_A_2,  MI_B_2, MI_Db_3, MI_Eb_3, MI_F_3,  MI_G_3, MI_A_3,  MI_B_3, MI_Db_4, MI_Eb_4, MI_F_4,  MI_G_4,  MI_A_4,  MI_B_4
    ),

    /* TRANS   This layer must locate 1 layer below _FN layer. */
    [_TRANS] = LAYOUT(
            _______,           _______,                             _______, _______,
            _______,
        MI_TRNSD, MI_TRNSU,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
            _______,               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
    ),

    /* RESERVE */
    [_RESERVE] = LAYOUT(
            _______,          _______,                             _______, _______,
            _______,
        _______, _______,      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
            _______,               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
    ),

    [_FN] =  LAYOUT(
            _______,          XXXXXXX,                             RGB_RMOD, RGB_MOD,
            MI_VELU,
        MI_OCTD, MI_OCTU,     B_BASE, DF(_RESERVE), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, VERSION, XXXXXXX, XXXXXXX,
            MI_VELD,              TGLINTR,    TGLTRNS, XXXXXXX, XXXXXXX, XXXXXXX, RGB_SAD, RGB_SAI, RGB_HUD, RGB_HUI, RGB_SPD, RGB_SPI, RGB_VAD, RGB_VAI, RGB_RMOD, RGB_MOD, EEP_RST, TGLINDI, RGB_TOG
    )
};

// commom codes called from eeconfig_init_user() and keyboard_post_init_user().
void my_init(void){
    //  Set octave to MI_OCT_1
    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;
    default_layer_set(_LS_BASE);
    layer_state_set(_LS_BASE);

#ifdef RGB_MATRIX_ENABLE
    rgb_matrix_mode(RGB_MATRIX_CUSTOM_my_solid_reactive_col);
#endif  // RGB_MATRIX_ENABLE
}

void eeconfig_init_user(void) {  // EEPROM is getting reset!
    midi_init();

#ifdef RGB_MATRIX_ENABLE
    rgb_matrix_enable();
    rgb_matrix_set_speed(RGB_MATRIX_STARTUP_SPD);
    rgb_matrix_sethsv(HSV_BLUE);
#endif  // RGB_MATRIX_ENABLE
    my_init(); // commom codes called from eeconfig_init_user() and keyboard_post_init_user().
}

void keyboard_post_init_user(void) {
    my_init(); // commom codes called from eeconfig_init_user() and keyboard_post_init_user().
}

void reset_scale_indicator(void) {
    //  reset transpose value and scale_indicator_col to default.
    midi_config.transpose = 0;
    scale_indicator_col = DEFAULT_SCALE_COL;
    trans_mode_indicator_loc_sel = true;
}

void reset_all(void) {
    reset_scale_indicator();
    is_trans_mode = false;      //  trans mode is disabled by default.
}

void select_layer_state_set(void) {
    if (is_trans_mode) {
        layer_state_set(_LS_TRANS);
    } else {
        layer_state_set(_LS_BASE);
    }
}


bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    // uprintf("keycode=%u, YM_C_3=%u, YM_Db_2 =%u, YM_MIN = %u, YM_MAX = %u\n", keycode, YM_C_3, YM_Db_2, YM_TONE_MIN, YM_TONE_MAX);
    switch (keycode) {
        case VERSION: // Output firmware info.
            if (record->event.pressed) {
                SEND_STRING(QMK_KEYBOARD ":" QMK_KEYMAP " @ " QMK_VERSION " | " QMK_BUILDDATE);
            }
            break;

        //  Layer-related settings.
        //  reset_scale_indicator() first, followed by each modification, and then change the default layer.

        //  1, separator column modification
        case B_BASE:
            if (record->event.pressed) {
                reset_all();
                select_layer_state_set();
            }
            break;

        //  2, Toggle scale shift mode and transpose mode
        case TGLTRNS:
            if (record->event.pressed) {
                reset_scale_indicator();
                is_trans_mode = !is_trans_mode;
                select_layer_state_set();
            }
            break;

        //  SHIFT_L and SHIFT_R can be pressed only when layer is either _BASE, _FLIPBASE.
        case SHIFT_L:
            if (record->event.pressed) {
                if (layer_state ==  _LS_BASE) {
                        scale_indicator_col = shift_led_indicator_left(scale_indicator_col);
                }
            }
            break;

        case SHIFT_R:
            if (record->event.pressed) {
                if (layer_state == _LS_BASE ) {
                        scale_indicator_col = shift_led_indicator_right(scale_indicator_col);
                }
            }
            break;

        case TGLINDI:
            if (record->event.pressed) {
                led_indicator_enable = !led_indicator_enable;
            }
            break;

        case TGLINTR:
            if (record->event.pressed) {
                switch (layer_state) {
                    //  main function of the TGLINTR part 1. alternate the status of trans_mode_indicator_loc_sel.
                    case _LS_TRANS          | (1UL << _FN):
                        trans_mode_indicator_loc_sel = !trans_mode_indicator_loc_sel;

                        //  when trans_mode_indicator_loc_sel == false, change the scale indicator and transpose.
                        scale_indicator_col = trans_mode_indicator_loc_sel ? 0:1;
                        // when TGLINTR is pressed, it also change the initial transpose setting to follow the scale indicator.
                        if (scale_indicator_col == 1) {
                            midi_config.transpose = -1;
                        } else {
                            midi_config.transpose = 0;
                        }
                        break;

                    //  special treatment when TGLINTR is pressed in other non-Trans layer.
                    default :  // when other layers = non-Trans mode, change it to Trans mode.
                        trans_mode_indicator_loc_sel = false;
                        scale_indicator_col = 1;
                        midi_config.transpose = -1;
                        is_trans_mode = true;
                        select_layer_state_set();
                }
            }
            break;
    }
    return true;
}

#ifdef RGB_MATRIX_ENABLE
void set_led_scale_indicator(uint8_t r, uint8_t g, uint8_t b) {
    uint8_t max_scale_indicator_led_loop;
    uint8_t i;
    if (led_indicator_enable) {  //  turn on indicators when enabled.
        max_scale_indicator_led_loop = ( scale_indicator_col == DEFAULT_SCALE_COL ) ? 12 : 9;
        for (i = 0; i < max_scale_indicator_led_loop; i++) {
            rgb_matrix_set_color(led_scale_indicator[scale_indicator_col][i], r, g, b);
        }
    }
}

void rgb_matrix_indicators_user(void) {
    // uint32_t mode = rgblight_get_mode();

    if (rgb_matrix_is_enabled()) {  // turn the lights on when it is enabled.

        // uint8_t max_scale_indicator_led_loop;
        uint8_t i;

        switch (layer_state) {
            case _LS_BASE:
                set_led_scale_indicator(BASE_LAYER_COLOR);
                break;

            case _LS_TRANS:
                set_led_scale_indicator(TRANS_LAYER_COLOR);
                break;

            case _LS_FN ... _LS_MAX:  //  When Mute Button is long-pressed, the previous layers are still active.
                for (i = 1; i < 5; i++) {
                    rgb_matrix_set_color(i, RGB_DARKSPRINGGREEN);  //  up(1) down(4) left(3) right(2)  keys
                }
                rgb_matrix_set_color(led_single_col_indicator[_KEY02][0], RGB_DARKSPRINGGREEN);   //  TGLTRNS
                rgb_matrix_set_color(led_single_col_indicator[_KEY04][0], RGB_DARKSPRINGGREEN);   //  TGLINTR

                for (i = 0; i < 3; i++) {
                    rgb_matrix_set_color(led_single_col_indicator[_KEY01][i], BASE_LAYER_COLOR);   //  B_BASE
                }

                for (i = _KEY12; i < _KEY37; i+=2){  //  even numbers from _KEY12 to _KEY36 are LED related settings.
                    // turn on the bottom row only to keep the visibility of the RGB MATRIX effects.
                    rgb_matrix_set_color(led_single_col_indicator[i][0], RGB_DARKSPRINGGREEN);  //       //  LED related settings.
                }
                break;
        }
    }
}
#endif  // RGB_MATRIX_ENABLE

A keyboards/chromatonemini/keymaps/via/readme.md => keyboards/chromatonemini/keymaps/via/readme.md +1 -0
@@ 0,0 1,1 @@
# The via keymap for chromatonemini, RGB MATRIX enabled.

A keyboards/chromatonemini/keymaps/via/rules.mk => keyboards/chromatonemini/keymaps/via/rules.mk +3 -0
@@ 0,0 1,3 @@
RGB_MATRIX_ENABLE = yes     # Use RGB matrix (Don't enable this when RGBLIGHT_ENABLE is used.)
RGB_MATRIX_CUSTOM_KB = yes  #
VIA_ENABLE = yes

A keyboards/chromatonemini/readme.md => keyboards/chromatonemini/readme.md +19 -0
@@ 0,0 1,19 @@
# chromatonemini

![chromatonemini](https://github.com/3araht/chromatonemini/blob/main/pictures/chromatonemini_toppage.jpg)

chromatonemini keyboard is a simple-design Chromatone mini MIDI keyboard that covers 3 octaves (37 notes).

* Keyboard Maintainer: [3araht](https://github.com/3araht)
* Hardware Supported: chromatone keyboard, a DIY MIDI keyboard.
* Hardware Availability: [BOOTH](https://3araht.booth.pm/). Click [here](https://www.tenso.com/en/static/lp_shop_booth) for BOOTH overseas shipping!

Make example for this keyboard (after setting up your build environment):

    make chromatonemini:default

Flashing example for this keyboard:

    make chromatonemini:default:flash

See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).

A keyboards/chromatonemini/rgb_matrix_kb.inc => keyboards/chromatonemini/rgb_matrix_kb.inc +58 -0
@@ 0,0 1,58 @@
#ifdef RGB_MATRIX_KEYREACTIVE_ENABLED
RGB_MATRIX_EFFECT(my_solid_reactive_multiwide_col)
RGB_MATRIX_EFFECT(my_solid_reactive_col)
RGB_MATRIX_EFFECT(my_party_rocks)

#    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS

static HSV my_solid_reactive_multiwide_col_math(HSV hsv, int16_t dx, int16_t dy, uint8_t dist, uint16_t tick) {
    uint16_t effect = tick + dist;
    dx              = dx < 0 ? dx * -1 : dx;
    dx              = dx * 16 > 255 ? 255 : dx * 16;
    effect += dx;
    if (effect > 255) effect = 255;
    hsv.v = qadd8(hsv.v, 255 - effect);
    // hsv.h += qsub8(130, effect);
    return hsv;
}

bool my_solid_reactive_multiwide_col(effect_params_t* params) {
    return effect_runner_reactive_splash(0, params, &my_solid_reactive_multiwide_col_math);
}


bool my_solid_reactive_col(effect_params_t* params) {
    RGB_MATRIX_USE_LIMITS(led_min, led_max);

    uint16_t max_tick = 65535 / rgb_matrix_config.speed;
    for (uint8_t i = led_min; i < led_max; i++) {
        RGB_MATRIX_TEST_LED_FLAGS();
        HSV hsv = rgb_matrix_config.hsv;
        uint16_t tick = max_tick;
        // Reverse search to find most recent key hit
        for (int8_t j = g_last_hit_tracker.count - 1; j >= 0; j--) {
            if (g_last_hit_tracker.x[j] == g_led_config.point[i].x && g_last_hit_tracker.tick[j] < tick) {
                tick = g_last_hit_tracker.tick[j];
                break;
            }
        }

        uint16_t offset = scale16by8(tick, rgb_matrix_config.speed);
        hsv.h += qsub8(130, offset);
        RGB      rgb    = rgb_matrix_hsv_to_rgb(hsv);
        rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
    }
    return led_max < DRIVER_LED_TOTAL;
}

bool my_party_rocks(effect_params_t* params) {
    RGB_MATRIX_USE_LIMITS(led_min, led_max);
    HSV hsv = {rand() & 0xFF, rand() & 0xFF, rgb_matrix_config.hsv.v};
    RGB rgb = rgb_matrix_hsv_to_rgb(hsv);
    // rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
    rgb_matrix_set_color_all(rgb.r, rgb.g, rgb.b);
    return led_max < DRIVER_LED_TOTAL;
}

#    endif      // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
#endif          // RGB_MATRIX_KEYREACTIVE_ENABLED

A keyboards/chromatonemini/rules.mk => keyboards/chromatonemini/rules.mk +22 -0
@@ 0,0 1,22 @@
# MCU name
MCU = atmega32u4

# Bootloader selection
BOOTLOADER = caterina

# Build Options
#   change yes to no to disable
#
BOOTMAGIC_ENABLE = no       # Enable Bootmagic Lite
MOUSEKEY_ENABLE = no        # Mouse keys
EXTRAKEY_ENABLE = yes       # Audio control and System control
CONSOLE_ENABLE = no         # Console for debug
COMMAND_ENABLE = no         # Commands for debug and configuration
NKRO_ENABLE = no            # Enable N-Key Rollover
BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
AUDIO_ENABLE = no           # Audio output
MIDI_ENABLE = yes           # MIDI support
ENCODER_ENABLE = yes        # encoder on mute button
RGB_MATRIX_DRIVER = WS2812  #
LTO_ENABLE = yes