Add localized LED flash effect on keypress to Massdrop ALT (#4340)

* Add mapdev layout to espectro

* Add mapdev layout to espectro

* - Update MO

Co-Authored-By: tcatkins99 <tatkins@beitzanddaigh.com>

common_features.mk

@@ -213,6 +213,7 @@ endif
 ifeq ($(strip $(TERMINAL_ENABLE)), yes)
     SRC += $(QUANTUM_DIR)/process_keycode/process_terminal.c
     OPT_DEFS += -DTERMINAL_ENABLE
+    OPT_DEFS += -DUSER_PRINT
 endif
 
 ifeq ($(strip $(USB_HID_ENABLE)), yes)

keyboards/espectro/keymaps/mapdev/keymap.c

@@ -0,0 +1,88 @@
+/*
+ * 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
+#define MODS_CTRL_MASK  (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))
+
+#define _BL 0 //Base layer
+#define _FN1 1 //Function layer
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* BL
+____________________________________________________________________________________________________________________________________________________________________________
+|        |        |        |        |        |        |        |        |        |        |        |        |        |        |        |        |        |        |        |
+| ESC    |   F1   |   F2   |   F3   |   F4   |   F5   |   F6   |   F7   |   F8   |   F9   |  F10   |  F11   |  F12   | P SCN  |  HOME  |   END  |  P UP  | P DOWN |  DEL   |
+|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|
+|        |        |        |        |        |        |        |        |        |        |        |        |        |      BACK       |  NUM   |        |        |        |
+|  ~`    |   1    |   2    |   3    |   4    |   5    |   6    |   7    |   8    |   9    |   0    |  _ -   | =  +   |      SPACE      |  LOCK  |   /    |  *     |   -    |
+|________|________|________|________|________|________|________|________|________|________|________|________|________|_________________|________|________|________|________|
+|            |        |        |        |        |        |        |        |        |        |        |  [     |   ]    |             |        |        |        |        |
+|    TAB     |   Q    |   W    |   E    |   R    |   T    |   Y    |   U    |   I    |   O    |   P    |  {     |   }    |  |   \      |   7    |   8    |   9    |        |
+|____________|________|________|________|________|________|________|________|________|________|________|________|________|_____________|________|________|________|   +    |
+|              |        |        |        |        |        |        |        |        |        |   ;    |   '    |                    |        |        |        |        |
+|   CAPS LOCK  |   A    |   S    |   D    |   F    |   G    |   H    |   J    |   K    |   L    |   :    |   "    |       ENTER        |   4    |   5    |   6    |        |
+|______________|________|________|________|________|________|________|________|________|________|________|________|____________________|________|________|________|________|
+|                  |        |        |        |        |        |        |        |   ,    |    .   |   /    |                |        |        |        |        |        |
+|  SHIFT           |   Z    |   X    |   C    |   V    |   B    |   N    |   M    |   <    |    >   |   ?    |       SHIFT    |   UP   |   1    |   2    |   3    |        |
+|__________________|________|________|________|________|________|________|________|________|________|________|________________|________|________|________|________| ENTER  |
+|          |          |          |                                                        |        |        |   MO   |        |        |        |        |        |        |
+| CTRL     |   LGUI   | L ALT    |                      SPACE                             | R ALT  | R CTRL |  _FN   |  LEFT  |  DOWN  | RIGHT  |   0    |   .    |        |
+|__________|__________|__________|________________________________________________________|________|________|________|________|________|________|________|________|________|
+ */
+
+  [_BL] = LAYOUT_default(
+    KC_ESC,  KC_F1,  KC_F2,  KC_F3,  KC_F4,  KC_F5,  KC_F6,  KC_F7,  KC_F8,  KC_F9,  KC_F10,  KC_F11,  KC_F12,   KC_VOLD,  KC_VOLU, KC_HOME, KC_END, KC_PGUP, KC_PGDN,
+    KC_GRV,  KC_1,   KC_2,   KC_3,   KC_4,   KC_5,   KC_6,   KC_7,   KC_8,   KC_9,   KC_0,   KC_MINS, KC_EQL,       KC_BSPC,     KC_DEL, KC_PSLS, KC_PAST, KC_PMNS,
+      KC_TAB,  KC_Q,   KC_W,   KC_E,   KC_R,   KC_T,   KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,   KC_LBRC, KC_RBRC,     KC_BSLS,     KC_P7,   KC_P8,   KC_P9,   KC_PPLS,
+       KC_LCTL,  KC_A,   KC_S,   KC_D,   KC_F,   KC_G,   KC_H,   KC_J,   KC_K,   KC_L,   KC_SCLN,   KC_QUOT,          KC_ENT,     KC_P4,   KC_P5,   KC_P6,
+        KC_LSPO,  KC_Z,   KC_X,   KC_C,   KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM, KC_DOT, KC_SLSH,      KC_RSPC,        KC_UP,   KC_P1,   KC_P2,   KC_P3,   KC_PENT,
+    MO(_FN1), KC_LALT, KC_LGUI,                   KC_SPC,                           KC_RGUI, _______,  KC_RCTL,  KC_LEFT, KC_DOWN, KC_RIGHT, KC_P0,  KC_PDOT
+  ),
+
+/* FN_1
+____________________________________________________________________________________________________________________________________________________________________________
+|        |        |        |        |        |        |        |        |        |        |        |        |        |        |  VOL   |  VOL   | NEXT   |        |        |
+| RESET  |        |        |        |        |        |        |        |        |        |        |        |        |  MUTE  |  DOWN  |   UP   | TRACK  |  HOME  |  END   |
+|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|________|
+|        |  RGB   |  RGB   |  RGB   |  RGB   |  RGB   |  RGB   |  RGB   |  RGB   |        |        |        |        |                 |        |        |        |        |
+|        | TOGGLE |  MODE  |INCREASE|DECREASE|  HUE   |  HUE   |  SAT   |        |        |        |        |        |      DELETE     |        |        |        |        |
+|________|________|________|________|________|INCREASE|DECREASE|INCREASE|DECREASE|________|________|________|________|_________________|________|________|________|________|
+|            | BACK   | BACK   |        |        |        |        |        |        |        |        |        |        |             |        |        |        |        |
+|            | LIGHT  | LIGHT  |        |        |        |        |        |        |        |        |        |        |             |        |        |        |        |
+|____________| TOGGLE |INCREASE|DECREASE|________|________|________|________|________|________|________|________|________|_____________|________|________|________|        |
+|              |        |        |        |        |        |        |        |        |        |        |        |                    |        |        |        |        |
+|              |        |        |        |        |        |        |        |        |        |        |        |                    |        |        |        |        |
+|______________|________|________|________|________|________|________|________|________|________|________|________|____________________|________|________|________|________|
+|                  |        |        |        |        |        |        |        |        |        |        |                |        |        |        |        |        |
+|                  |        |        |        |        |        |        |        |        |        |        |                |        |        |        |        |        |
+|__________________|________|________|________|________|________|________|________|________|________|________|________________|________|________|________|________|        |
+|          |          |          |                                                        |        |        |        |        |        |        |        |        |        |
+|          |          |          |                                                        |        |        |        |        |        |        |        |        |        |
+|__________|__________|__________|________________________________________________________|________|________|________|________|________|________|________|________|________|
+ */
+
+	[_FN1] = LAYOUT_default(
+    RESET, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MUTE, _______, KC_END, _______, _______,  _______,
+    _______, RGB_TOG, RGB_MOD, RGB_VAI, RGB_VAD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, _______, _______, _______, _______,      KC_DEL,    _______, _______, _______, _______,
+      _______, BL_TOGG,  BL_INC,  BL_DEC,  _______, _______, _______, _______, _______, _______, _______, _______, _______,    _______,  _______, _______, _______, _______,
+        KC_CAPS, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,    _______, _______, _______,
+         _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,    _______,         _______, _______, _______, _______, _______,
+    _______, _______, _______,                  _______,                                 _______, _______,  _______,  _______, _______, _______, _______, _______
+  ),
+
+};
+

keyboards/massdrop/alt/keymaps/reywood/keymap.c

@@ -0,0 +1,195 @@
+#include QMK_KEYBOARD_H
+#include "rgb_matrix_user.h"
+
+enum alt_keycodes {
+  L_BRI = SAFE_RANGE, //LED Brightness Increase
+  L_BRD,              //LED Brightness Decrease
+  L_PTN,              //LED Pattern Select Next
+  L_PTP,              //LED Pattern Select Previous
+  L_PSI,              //LED Pattern Speed Increase
+  L_PSD,              //LED Pattern Speed Decrease
+  L_T_MD,             //LED Toggle Mode
+  L_T_ONF,            //LED Toggle On / Off
+  L_ON,               //LED On
+  L_OFF,              //LED Off
+  L_T_BR,             //LED Toggle Breath Effect
+  L_T_PTD,            //LED Toggle Scrolling Pattern Direction
+  U_T_AUTO,           //USB Extra Port Toggle Auto Detect / Always Active
+  U_T_AGCR,           //USB Toggle Automatic GCR control
+  DBG_TOG,            //DEBUG Toggle On / Off
+  DBG_MTRX,           //DEBUG Toggle Matrix Prints
+  DBG_KBD,            //DEBUG Toggle Keyboard Prints
+  DBG_MOU,            //DEBUG Toggle Mouse Prints
+  MD_BOOT,            //Restart into bootloader after hold timeout
+};
+
+#define TG_NKRO MAGIC_TOGGLE_NKRO //Toggle 6KRO / NKRO mode
+#define ______ KC_TRNS
+
+keymap_config_t keymap_config;
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT(
+    KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSPC, KC_DEL,  \
+    KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSLS, KC_HOME, \
+    KC_CAPS, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,          KC_ENT,  KC_PGUP, \
+    KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT,          KC_UP,   KC_PGDN, \
+    KC_LCTL, KC_LALT, KC_LGUI,                            KC_SPC,                             KC_RGUI, MO(1),   KC_LEFT, KC_DOWN, KC_RGHT  \
+  ),
+  [1] = LAYOUT(
+    KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, KC_MUTE, \
+    _______, _______, _______,  KC_UP,  _______, _______, _______, U_T_AUTO,U_T_AGCR,_______, KC_PSCR, KC_SLCK, KC_PAUS, _______, KC_END, \
+    _______, _______, KC_LEFT, KC_DOWN, KC_RGHT, _______, _______, _______, _______, _______, _______, _______,          _______, _______, \
+    _______, _______, _______, _______, _______, MD_BOOT, TG_NKRO, _______, _______, _______, _______, _______,          KC_VOLU, _______, \
+    _______, _______, _______,                            KC_MPLY,                              MO(2), _______, KC_MRWD, KC_VOLD, KC_MFFD  \
+  ),
+  [2] = LAYOUT(
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+    L_T_BR,  L_PSD,   L_BRI,   L_PSI,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+    L_T_PTD, L_PTP,   L_BRD,   L_PTN,   _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, \
+    _______, L_T_MD,  L_T_ONF, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, \
+    _______, _______, _______,                            _______,                            _______, _______, _______, _______, _______  \
+  ),
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+
+};
+
+// Runs just one time when the keyboard initializes.
+void matrix_init_user(void) {
+};
+
+// Runs constantly in the background, in a loop.
+void matrix_scan_user(void) {
+};
+
+#define MODS_SHIFT  (keyboard_report->mods & MOD_BIT(KC_LSHIFT) || keyboard_report->mods & MOD_BIT(KC_RSHIFT))
+#define MODS_CTRL  (keyboard_report->mods & MOD_BIT(KC_LCTL) || keyboard_report->mods & MOD_BIT(KC_RCTRL))
+#define MODS_ALT  (keyboard_report->mods & MOD_BIT(KC_LALT) || keyboard_report->mods & MOD_BIT(KC_RALT))
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  static uint32_t key_timer;
+
+  rgb_matrix_record_key_press(record);
+
+  switch (keycode) {
+    case L_BRI:
+      if (record->event.pressed) {
+        if (LED_GCR_STEP > LED_GCR_MAX - gcr_desired) gcr_desired = LED_GCR_MAX;
+        else gcr_desired += LED_GCR_STEP;
+        if (led_animation_breathing) gcr_breathe = gcr_desired;
+      }
+      return false;
+    case L_BRD:
+      if (record->event.pressed) {
+        if (LED_GCR_STEP > gcr_desired) gcr_desired = 0;
+        else gcr_desired -= LED_GCR_STEP;
+        if (led_animation_breathing) gcr_breathe = gcr_desired;
+      }
+      return false;
+    case L_PTN:
+      if (record->event.pressed) {
+        if (led_animation_id == led_setups_count - 1) led_animation_id = 0;
+        else led_animation_id++;
+      }
+      return false;
+    case L_PTP:
+      if (record->event.pressed) {
+        if (led_animation_id == 0) led_animation_id = led_setups_count - 1;
+        else led_animation_id--;
+      }
+      return false;
+    case L_PSI:
+      if (record->event.pressed) {
+        led_animation_speed += ANIMATION_SPEED_STEP;
+      }
+      return false;
+    case L_PSD:
+      if (record->event.pressed) {
+        led_animation_speed -= ANIMATION_SPEED_STEP;
+        if (led_animation_speed < 0) led_animation_speed = 0;
+      }
+      return false;
+    case L_T_MD:
+      if (record->event.pressed) {
+        led_lighting_mode++;
+        if (led_lighting_mode > LED_MODE_MAX_INDEX) led_lighting_mode = LED_MODE_NORMAL;
+      }
+      return false;
+    case L_T_ONF:
+      if (record->event.pressed) {
+        led_enabled = !led_enabled;
+        I2C3733_Control_Set(led_enabled);
+      }
+      return false;
+    case L_ON:
+      if (record->event.pressed) {
+        led_enabled = 1;
+        I2C3733_Control_Set(led_enabled);
+      }
+      return false;
+    case L_OFF:
+      if (record->event.pressed) {
+        led_enabled = 0;
+        I2C3733_Control_Set(led_enabled);
+      }
+      return false;
+    case L_T_BR:
+      if (record->event.pressed) {
+        led_animation_breathing = !led_animation_breathing;
+        if (led_animation_breathing) {
+          gcr_breathe = gcr_desired;
+          led_animation_breathe_cur = BREATHE_MIN_STEP;
+          breathe_dir = 1;
+        }
+      }
+      return false;
+    case L_T_PTD:
+      if (record->event.pressed) {
+        led_animation_direction = !led_animation_direction;
+      }
+      return false;
+    case U_T_AUTO:
+      if (record->event.pressed && MODS_SHIFT && MODS_CTRL) {
+        TOGGLE_FLAG_AND_PRINT(usb_extra_manual, "USB extra port manual mode");
+      }
+      return false;
+    case U_T_AGCR:
+      if (record->event.pressed && MODS_SHIFT && MODS_CTRL) {
+        TOGGLE_FLAG_AND_PRINT(usb_gcr_auto, "USB GCR auto mode");
+      }
+      return false;
+    case DBG_TOG:
+      if (record->event.pressed) {
+        TOGGLE_FLAG_AND_PRINT(debug_enable, "Debug mode");
+      }
+      return false;
+    case DBG_MTRX:
+      if (record->event.pressed) {
+        TOGGLE_FLAG_AND_PRINT(debug_matrix, "Debug matrix");
+      }
+      return false;
+    case DBG_KBD:
+      if (record->event.pressed) {
+        TOGGLE_FLAG_AND_PRINT(debug_keyboard, "Debug keyboard");
+      }
+      return false;
+    case DBG_MOU:
+      if (record->event.pressed) {
+        TOGGLE_FLAG_AND_PRINT(debug_mouse, "Debug mouse");
+      }
+      return false;
+    case MD_BOOT:
+      if (record->event.pressed) {
+        key_timer = timer_read32();
+      } else {
+        if (timer_elapsed32(key_timer) >= 500) {
+          reset_keyboard();
+        }
+      }
+      return false;
+    default:
+      return true; //Process all other keycodes normally
+  }
+}

keyboards/massdrop/alt/keymaps/reywood/rgb_matrix_user.c

@@ -0,0 +1,193 @@
+#include "quantum.h"
+#include "led_matrix.h"
+
+extern issi3733_led_t *led_cur;
+extern uint8_t led_per_run;
+extern issi3733_led_t *lede;
+extern issi3733_led_t led_map[];
+
+static uint16_t last_boost_update;
+static uint8_t led_boosts[ISSI3733_LED_COUNT];
+static uint8_t led_boost_index;
+static uint8_t led_cur_index;
+
+#define LED_BOOST_REFRESH_INTERVAL_IN_MS 40
+#define LED_BOOST_DECAY 0.7
+#define LED_BOOST_PROPAGATE 0.5
+#define LED_BOOST_PEAK 100
+
+#define MIN_RGB 0x050008
+#define MIN_R (MIN_RGB >> 16 & 0xff)
+#define MIN_G (MIN_RGB >> 8 & 0xff)
+#define MIN_B (MIN_RGB & 0xff)
+
+#define MAX_RGB 0xc26eff
+#define MAX_R (MAX_RGB >> 16 & 0xff)
+#define MAX_G (MAX_RGB >> 8 & 0xff)
+#define MAX_B (MAX_RGB & 0xff)
+
+#define UNDERGLOW_RGB 0x4f002e
+#define UNDERGLOW_R (UNDERGLOW_RGB >> 16 & 0xff)
+#define UNDERGLOW_G (UNDERGLOW_RGB >> 8 & 0xff)
+#define UNDERGLOW_B (UNDERGLOW_RGB & 0xff)
+
+#define UNDERGLOW_SCAN_CODE 255
+
+#define max(a, b) (((a) > (b)) ? (a) : (b))
+
+#define __ -1
+static const uint8_t KEY_TO_LED_MAP[MATRIX_ROWS][MATRIX_COLS] = {
+  { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14},
+  {15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29},
+  {30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, __, 42, 43},
+  {44, __, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57},
+  {58, 59, 60, __, __, __, 61, __, __, __, 62, 63, 64, 65, 66},
+};
+
+#define KEY_LED_COUNT 67
+#define KP(c, r) { .col = c, .row = r } // shorthand for keypos_t
+static const keypos_t LED_TO_KEY_MAP[KEY_LED_COUNT] = {
+  KP(0, 0), KP(1, 0), KP(2, 0), KP(3, 0), KP(4, 0), KP(5, 0), KP(6, 0), KP(7, 0), KP(8, 0), KP(9, 0), KP(10, 0), KP(11, 0), KP(12, 0), KP(13, 0), KP(14, 0),
+  KP(0, 1), KP(1, 1), KP(2, 1), KP(3, 1), KP(4, 1), KP(5, 1), KP(6, 1), KP(7, 1), KP(8, 1), KP(9, 1), KP(10, 1), KP(11, 1), KP(12, 1), KP(13, 1), KP(14, 1),
+  KP(0, 2), KP(1, 2), KP(2, 2), KP(3, 2), KP(4, 2), KP(5, 2), KP(6, 2), KP(7, 2), KP(8, 2), KP(9, 2), KP(10, 2), KP(11, 2),            KP(13, 2), KP(14, 2),
+  KP(0, 3),           KP(2, 3), KP(3, 3), KP(4, 3), KP(5, 3), KP(6, 3), KP(7, 3), KP(8, 3), KP(9, 3), KP(10, 3), KP(11, 3), KP(12, 3), KP(13, 3), KP(14, 3),
+  KP(0, 4), KP(1, 4), KP(2, 4),                               KP(6, 4),                               KP(10, 4), KP(11, 4), KP(12, 4), KP(13, 4), KP(14, 4),
+};
+
+
+static void update_led_boosts(void);
+static void update_led_cur_rgb_values(void);
+static void set_nearest_led_to_max(uint8_t col, uint8_t row);
+static uint8_t calculate_new_color_component_value(uint8_t max, uint8_t min);
+static void calculate_new_led_boosts(uint8_t new_led_boosts[]);
+static uint8_t calculate_new_led_boost_at(int index);
+static uint8_t get_propagated_boost_from_neighbors(int led_position);
+static uint8_t get_led_boost_at_keypos(uint8_t row, uint8_t col);
+static void set_new_led_boosts(uint8_t* new_led_boosts);
+static uint8_t map_key_position_to_led_index(uint8_t col, uint8_t row);
+
+
+void rgb_matrix_init_user(void) {
+  for (int i = 0; i < ISSI3733_LED_COUNT; i++) {
+    led_boosts[i] = 0;
+  }
+  last_boost_update = timer_read();
+  led_boost_index = 0;
+  led_cur_index = 0;
+}
+
+void led_matrix_run(void) {
+  uint8_t led_this_run = 0;
+
+  if (led_cur == 0) { //Denotes start of new processing cycle in the case of chunked processing
+    led_cur = led_map;
+    led_cur_index = 0;
+  }
+  update_led_boosts();
+
+  while (led_cur < lede && led_this_run < led_per_run) {
+    update_led_cur_rgb_values();
+
+    led_cur++;
+    led_cur_index++;
+    led_this_run++;
+  }
+}
+
+void rgb_matrix_record_key_press(keyrecord_t *record) {
+  if (record->event.pressed) {
+    keypos_t key = record->event.key;
+    set_nearest_led_to_max(key.col, key.row);
+  }
+}
+
+
+static void update_led_boosts(void) {
+  if (timer_elapsed(last_boost_update) > LED_BOOST_REFRESH_INTERVAL_IN_MS) {
+    last_boost_update = timer_read();
+
+    uint8_t new_led_boosts[ISSI3733_LED_COUNT];
+    calculate_new_led_boosts(new_led_boosts);
+    set_new_led_boosts(new_led_boosts);
+  }
+}
+
+static void update_led_cur_rgb_values(void) {
+  if (led_cur->scan == UNDERGLOW_SCAN_CODE) {
+    *led_cur->rgb.r = UNDERGLOW_R;
+    *led_cur->rgb.g = UNDERGLOW_G;
+    *led_cur->rgb.b = UNDERGLOW_B;
+  } else {
+    *led_cur->rgb.r = calculate_new_color_component_value(MAX_R, MIN_R);
+    *led_cur->rgb.g = calculate_new_color_component_value(MAX_G, MIN_G);
+    *led_cur->rgb.b = calculate_new_color_component_value(MAX_B, MIN_B);
+  }
+}
+
+static void set_nearest_led_to_max(uint8_t col, uint8_t row) {
+  uint8_t led_index = map_key_position_to_led_index(col, row);
+  if (led_index >= 0 && led_index < ISSI3733_LED_COUNT) {
+    led_boosts[led_index] = LED_BOOST_PEAK;
+  }
+}
+
+static uint8_t calculate_new_color_component_value(uint8_t max, uint8_t min) {
+  uint8_t current_boost = led_boosts[led_cur_index];
+  return (float)(max - min) * current_boost / LED_BOOST_PEAK + min;
+}
+
+static void calculate_new_led_boosts(uint8_t new_led_boosts[]) {
+  for (int i = 0; i < ISSI3733_LED_COUNT; i++) {
+    new_led_boosts[i] = calculate_new_led_boost_at(i);
+  }
+}
+
+static uint8_t calculate_new_led_boost_at(int index) {
+  uint8_t decayed_boost = led_boosts[index] * LED_BOOST_DECAY;
+  uint8_t propagated_boost = get_propagated_boost_from_neighbors(index);
+  uint8_t new_boost = (propagated_boost > decayed_boost) ? propagated_boost : decayed_boost;
+  if (new_boost > LED_BOOST_PEAK) {
+    new_boost = LED_BOOST_PEAK;
+  }
+  return new_boost;
+}
+
+static uint8_t get_propagated_boost_from_neighbors(int led_position) {
+  if (led_position < 0 || led_position >= KEY_LED_COUNT) {
+    return 0;
+  }
+  keypos_t led_keypos = LED_TO_KEY_MAP[led_position];
+  uint8_t top_boost    = get_led_boost_at_keypos(led_keypos.row - 1, led_keypos.col);
+  uint8_t bottom_boost = get_led_boost_at_keypos(led_keypos.row + 1, led_keypos.col);
+  uint8_t left_boost   = get_led_boost_at_keypos(led_keypos.row, led_keypos.col - 1);
+  uint8_t right_boost  = get_led_boost_at_keypos(led_keypos.row, led_keypos.col + 1);
+  uint8_t max_boost = max(max(top_boost, bottom_boost), max(left_boost, right_boost));
+  if (max_boost > LED_BOOST_PEAK) {
+    max_boost = LED_BOOST_PEAK;
+  }
+  return max_boost * LED_BOOST_PROPAGATE;
+}
+
+static uint8_t get_led_boost_at_keypos(uint8_t row, uint8_t col) {
+  if (row < 0 || row >= MATRIX_ROWS || col < 0 || col >= MATRIX_COLS) {
+    return 0;
+  }
+  uint8_t led_index = KEY_TO_LED_MAP[row][col];
+  if (led_index < 0) {
+    return 0;
+  }
+  return led_boosts[led_index];
+}
+
+static void set_new_led_boosts(uint8_t* new_led_boosts) {
+  for (int i = 0; i < ISSI3733_LED_COUNT; i++) {
+    led_boosts[i] = new_led_boosts[i];
+  }
+}
+
+static uint8_t map_key_position_to_led_index(uint8_t col, uint8_t row) {
+  if (row >= 0 && row < MATRIX_ROWS && col >= 0 && col < MATRIX_COLS) {
+    return KEY_TO_LED_MAP[row][col];
+  }
+  return -1;
+}

keyboards/massdrop/alt/keymaps/reywood/rgb_matrix_user.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void rgb_matrix_record_key_press(keyrecord_t *record);

keyboards/massdrop/alt/keymaps/reywood/rules.mk

@@ -0,0 +1,34 @@
+# project specific files
+SRC = led_programs.c
+SRC += matrix.c
+SRC += rgb_matrix_user.c
+
+#For platform and packs
+ARM_ATSAM = SAMD51J18A
+MCU = cortex-m4
+
+CUSTOM_MATRIX = yes
+
+# Build Options
+#   comment out to disable the options.
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = no        # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no         # Enable support for HD44780 based LCDs (+400)
+VIRTSER_ENABLE = no         # USB Serial Driver
+RAW_ENABLE = no             # Raw device
+AUTO_SHIFT_ENABLE = no      # Auto Shift

tmk_core/common.mk

@@ -43,9 +43,11 @@ ifeq ($(PLATFORM),CHIBIOS)
     TMK_COMMON_DEFS += -DSTM32_EEPROM_ENABLE
   else
     TMK_COMMON_SRC += $(PLATFORM_COMMON_DIR)/eeprom_teensy.c
-endif
+  endif
   ifeq ($(strip $(AUTO_SHIFT_ENABLE)), yes)
     TMK_COMMON_SRC += $(CHIBIOS)/os/various/syscalls.c
+  else ifeq ($(strip $(TERMINAL_ENABLE)), yes)
+    TMK_COMMON_SRC += $(CHIBIOS)/os/various/syscalls.c
   endif
 endif
 

tmk_core/common/command.h

@@ -15,8 +15,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef COMMAND_H
-#define COMMAND
+#pragma once
 
 /* FIXME: Add doxygen comments for the behavioral defines in here. */
 
@@ -155,5 +154,3 @@ bool command_proc(uint8_t code);
 
 #define XMAGIC_KC(key) KC_##key
 #define MAGIC_KC(key) XMAGIC_KC(key)
-
-#endif

tmk_core/common/print.h

@@ -73,7 +73,9 @@ void print_set_sendchar(int8_t (*print_sendchar_func)(uint8_t));
 
 #elif defined(PROTOCOL_CHIBIOS) /* PROTOCOL_CHIBIOS */
 
+#ifndef TERMINAL_ENABLE
 #  include "chibios/printf.h"
+#endif
 
 #  ifdef USER_PRINT /* USER_PRINT */
 

tmk_core/protocol/arm_atsam/led_matrix.c

@@ -257,13 +257,15 @@ issi3733_led_t *led_cur;
 uint8_t led_per_run = 15;
 float breathe_mult;
 
-void led_matrix_run(led_setup_t *f)
+__attribute__ ((weak))
+void led_matrix_run(void)
 {
     float ro;
     float go;
     float bo;
     float px;
     uint8_t led_this_run = 0;
+    led_setup_t *f = (led_setup_t*)led_setups[led_animation_id];
 
     if (led_cur == 0) //Denotes start of new processing cycle in the case of chunked processing
     {
@@ -459,13 +461,19 @@ uint8_t led_matrix_init(void)
 
     //Run led matrix code once for initial LED coloring
     led_cur = 0;
-    led_matrix_run((led_setup_t*)led_setups[led_animation_id]);
+    rgb_matrix_init_user();
+    led_matrix_run();
 
     DBGC(DC_LED_MATRIX_INIT_COMPLETE);
 
     return 0;
 }
 
+__attribute__ ((weak))
+void rgb_matrix_init_user(void) {
+
+}
+
 #define LED_UPDATE_RATE 10  //ms
 
 //led data processing can take time, so process data in chunks to free up the processor
@@ -502,7 +510,7 @@ void led_matrix_task(void)
     if (led_cur != lede)
     {
         //m15_off; //debug profiling
-        led_matrix_run((led_setup_t*)led_setups[led_animation_id]);
+        led_matrix_run();
         //m15_on; //debug profiling
     }
 }

tmk_core/protocol/arm_atsam/led_matrix.h

@@ -86,6 +86,7 @@ typedef struct led_disp_s {
 } led_disp_t;
 
 uint8_t led_matrix_init(void);
+void rgb_matrix_init_user(void);
 
 #define LED_MODE_NORMAL             0   //Must be 0
 #define LED_MODE_KEYS_ONLY          1
@@ -134,7 +135,7 @@ extern void *led_setups[];
 extern issi3733_led_t *led_cur;
 extern issi3733_led_t *lede;
 
-void led_matrix_run(led_setup_t *f);
+void led_matrix_run(void);
 void led_matrix_task(void);
 
 void gcr_compute(void);