Creates a layouts/ folder for keymaps shared between keyboards (#1609)

* include variables and .h files as pp directives

* start layout compilation

* split ergodoxes up

* don't compile all layouts for everything

* might seg fault

* reset layouts variable

* actually reset layouts

* include rules.mk instead

* remove includes from rules.mk

* update variable setting

* load visualizer from path

* adds some more examples

* adds more layouts

* more boards added

* more boards added

* adds documentation for layouts

* use lowercase names for LAYOUT_

* add layout.json files for each layout

* add community folder, default keymaps for layouts

* touch-up default layouts

* touch-up layouts, some keyboard rules.mk

* update documentation for layouts

* fix up serial/i2c switches

4 files changed, 221 insertions, 0 deletions

diff --git a/keyboards/ergodox_ez/keymaps/drashna/Makefile b/keyboards/ergodox_ez/keymaps/drashna/Makefile
new file mode 100644
index 0000000000..9dfddf01ec
--- /dev/null
+++ b/keyboards/ergodox_ez/keymaps/drashna/Makefile
@@ -0,0 +1,6 @@
+RGBLIGHT_ENABLE = yes
+RGBLIGHT_ANIMATION = no
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
diff --git a/keyboards/ergodox_ez/keymaps/drashna/config.h b/keyboards/ergodox_ez/keymaps/drashna/config.h
new file mode 100644
index 0000000000..258dc391fe
--- /dev/null
+++ b/keyboards/ergodox_ez/keymaps/drashna/config.h
@@ -0,0 +1,11 @@
+
+#include "../../config.h"
+
+
+
+// make this easy to toggle behavior, so that it can be more easily toggled
+#define LAYER_UNDERGLOW_LIGHTING  
+
+#ifdef LAYER_UNDERGLOW_LIGHTING
+#undef RGBLIGHT_ANIMATIONS
+#endif
\ No newline at end of file
diff --git a/keyboards/ergodox_ez/keymaps/drashna/keymap.c b/keyboards/ergodox_ez/keymaps/drashna/keymap.c
new file mode 100644
index 0000000000..cef0e9c39f
--- /dev/null
+++ b/keyboards/ergodox_ez/keymaps/drashna/keymap.c
@@ -0,0 +1,195 @@
+#include QMK_KEYBOARD_H
+#include "debug.h"
+#include "action_layer.h"
+#include "version.h"
+
+
+#include "keymap_german.h"
+
+#include "keymap_nordic.h"
+
+#define VERSION M(0)
+
+
+// Define layer names 
+#define BASE 0
+#define SYMB 1
+#define MOUS 2
+
+#ifdef LAYER_UNDERGLOW_LIGHTING
+bool has_layer_changed = true;
+
+#define rgblight_set_teal rgblight_setrgb(0x00, 0xFF, 0xFF)
+#define rgblight_set_red rgblight_setrgb(0xFF, 0x00, 0x00)
+#define rgblight_set_blue rgblight_setrgb(0x00, 0xFF, 0x00);
+#define rgblight_set_green rgblight_setrgb(0x00, 0x00, 0xFF);
+#define rgblight_set_yellow rgblight_setrgb(0xFF, 0xFF, 0x00);
+
+
+#define MODS_SHIFT_MASK  (MOD_BIT(KC_LSHIFT)|MOD_BIT(KC_RSHIFT))
+#define MODS_CTRL_MASK  (MOD_BIT(KC_LCTL)|MOD_BIT(KC_RCTRL))
+#define MODS_ALT_MASK  (MOD_BIT(KC_LALT)|MOD_BIT(KC_RALT))
+#endif  
+
+
+enum custom_keycodes {
+  PLACEHOLDER = SAFE_RANGE, // can always be here
+  EPRM,
+  VRSN,
+#ifndef LAYER_UNDERGLOW_LIGHTING
+  RGB_SLD,
+#endif  
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [0] = KEYMAP(KC_EQUAL,KC_1,KC_2,KC_3,KC_4,KC_5,KC_LEFT,KC_DELETE,KC_Q,KC_W,KC_E,KC_R,KC_T,TG(1),KC_BSPACE,KC_A,KC_S,KC_D,KC_F,KC_G,KC_LSHIFT,CTL_T(KC_Z),KC_X,KC_C,KC_V,KC_B,ALL_T(KC_NO),LT(1,KC_GRAVE),KC_QUOTE,LALT(KC_LSHIFT),KC_LEFT,KC_RIGHT,ALT_T(KC_APPLICATION),KC_LGUI,KC_HOME,KC_SPACE,KC_BSPACE,KC_END,KC_RIGHT,KC_6,KC_7,KC_8,KC_9,KC_0,KC_MINUS,TG(1),KC_Y,KC_U,KC_I,KC_O,KC_P,KC_BSLASH,KC_H,KC_J,KC_K,KC_L,LT(2,KC_SCOLON),GUI_T(KC_QUOTE),MEH_T(KC_NO),KC_N,KC_M,KC_COMMA,KC_DOT,CTL_T(KC_SLASH),KC_RSHIFT,KC_UP,KC_DOWN,KC_LBRACKET,KC_RBRACKET,MO(1),KC_LALT,CTL_T(KC_ESCAPE),KC_PGUP,KC_PGDOWN,KC_TAB,KC_ENTER),
+
+#ifdef LAYER_UNDERGLOW_LIGHTING
+  [1] = KEYMAP(KC_ESCAPE,KC_F1,KC_F2,KC_F3,KC_F4,KC_F5,KC_TRANSPARENT,VERSION,KC_EXLM,KC_AT,KC_LCBR,KC_RCBR,KC_PIPE,KC_TRANSPARENT,VRSN,KC_HASH,KC_DLR,KC_LPRN,KC_RPRN,KC_GRAVE,RESET,KC_PERC,KC_CIRC,KC_LBRACKET,KC_RBRACKET,KC_TILD,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,RGB_VAD,RGB_VAI,KC_TRANSPARENT,KC_TRANSPARENT,KC_F6,KC_F7,KC_F8,KC_F9,KC_F10,KC_F11,KC_TRANSPARENT,KC_UP,KC_7,KC_8,KC_9,KC_ASTR,KC_F12,KC_DOWN,KC_4,KC_5,KC_6,KC_PLUS,KC_TRANSPARENT,KC_TRANSPARENT,KC_AMPR,KC_1,KC_2,KC_3,KC_BSLASH,KC_TRANSPARENT,KC_TRANSPARENT,KC_DOT,KC_0,KC_EQUAL,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT),
+#else
+  [1] = KEYMAP(KC_ESCAPE,KC_F1,KC_F2,KC_F3,KC_F4,KC_F5,KC_TRANSPARENT,VERSION,KC_EXLM,KC_AT,KC_LCBR,KC_RCBR,KC_PIPE,KC_TRANSPARENT,VRSN,KC_HASH,KC_DLR,KC_LPRN,KC_RPRN,KC_GRAVE,RESET,KC_PERC,KC_CIRC,KC_LBRACKET,KC_RBRACKET,KC_TILD,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,RGB_MOD,KC_TRANSPARENT,KC_TRANSPARENT,RGB_VAD,RGB_VAI,KC_TRANSPARENT,KC_TRANSPARENT,KC_F6,KC_F7,KC_F8,KC_F9,KC_F10,KC_F11,KC_TRANSPARENT,KC_UP,KC_7,KC_8,KC_9,KC_ASTR,KC_F12,KC_DOWN,KC_4,KC_5,KC_6,KC_PLUS,KC_TRANSPARENT,KC_TRANSPARENT,KC_AMPR,KC_1,KC_2,KC_3,KC_BSLASH,KC_TRANSPARENT,KC_TRANSPARENT,KC_DOT,KC_0,KC_EQUAL,KC_TRANSPARENT,RGB_TOG,RGB_SLD,KC_TRANSPARENT,KC_TRANSPARENT,RGB_HUD,RGB_HUI),
+#endif
+
+  [2] = KEYMAP(KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_MS_UP,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_MS_LEFT,KC_MS_DOWN,KC_MS_RIGHT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_MS_BTN1,KC_MS_BTN2,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_MEDIA_PLAY_PAUSE,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_MEDIA_PREV_TRACK,KC_MEDIA_NEXT_TRACK,KC_TRANSPARENT,KC_TRANSPARENT,KC_AUDIO_VOL_UP,KC_AUDIO_VOL_DOWN,KC_AUDIO_MUTE,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_TRANSPARENT,KC_WWW_BACK),
+
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+  [1] = ACTION_LAYER_TAP_TOGGLE(1)
+};
+
+// leaving this in place for compatibilty with old keymaps cloned and re-compiled.
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+      switch(id) {
+        case 0:
+        if (record->event.pressed) {
+          SEND_STRING (QMK_KEYBOARD "/" QMK_KEYMAP " @ " QMK_VERSION);
+        }
+        break;
+      }
+    return MACRO_NONE;
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    // dynamically generate these.
+    case EPRM:
+      if (record->event.pressed) {
+        eeconfig_init();
+      }
+      return false;
+      break;
+    case VRSN:
+      if (record->event.pressed) {
+        SEND_STRING (QMK_KEYBOARD "/" QMK_KEYMAP " @ " QMK_VERSION);
+      }
+      return false;
+      break;
+#ifndef LAYER_UNDERGLOW_LIGHTING
+    case RGB_SLD:
+      if (record->event.pressed) {
+        rgblight_mode(1);
+      }
+      return false;
+      break;
+#endif
+     
+  }
+  return true;
+}
+
+
+
+
+void matrix_scan_user(void) {
+
+    uint8_t new_layer = biton32(layer_state);
+    
+    ergodox_board_led_off();
+    ergodox_right_led_1_off();
+    ergodox_right_led_2_off();
+    ergodox_right_led_3_off();
+    
+#ifdef LAYER_UNDERGLOW_LIGHTING
+    static uint8_t old_layer = 0;
+    uint8_t modifiders = get_mods();
+    
+    if ( modifiders & MODS_SHIFT_MASK) {
+            ergodox_right_led_1_on();
+    }
+    if ( modifiders & MODS_CTRL_MASK) {
+            ergodox_right_led_2_on();
+    }
+    if ( modifiders & MODS_ALT_MASK) {
+            ergodox_right_led_3_on();
+    }
+    
+    if (old_layer != new_layer) {
+        has_layer_changed = true; 
+        old_layer = new_layer;
+    }
+    if (has_layer_changed) {
+        switch (new_layer) {
+            case 1:
+                rgblight_set_red;
+                break;
+            case 2:
+                rgblight_set_blue;
+                break;
+            case 3:
+                rgblight_set_green;
+                break;
+            case 4:
+                rgblight_set_yellow;
+                break;
+            case 5:
+                rgblight_setrgb(0xFF, 0xFF, 0x00);
+                break;
+            case 6:
+                rgblight_setrgb(0xFF, 0xFF, 0x00);
+                break;
+            case 7:
+                rgblight_setrgb(0xFF, 0xFF, 0xFF);
+                break;
+            default:
+                rgblight_set_teal;
+                break;
+        }
+        has_layer_changed = false;
+    }
+    
+#else    
+    switch (new_layer) {
+        case 1:
+            ergodox_right_led_1_on();
+            break;
+        case 2:
+            ergodox_right_led_2_on();
+            break;
+        case 3:
+            ergodox_right_led_3_on();
+            break;
+        case 4:
+            ergodox_right_led_1_on();
+            ergodox_right_led_2_on();
+            break;
+        case 5:
+            ergodox_right_led_1_on();
+            ergodox_right_led_3_on();
+            break;
+        case 6:
+            ergodox_right_led_2_on();
+            ergodox_right_led_3_on();
+            break;
+        case 7:
+            ergodox_right_led_1_on();
+            ergodox_right_led_2_on();
+            ergodox_right_led_3_on();
+            break;
+        default:
+            break;
+     }
+#endif 
+};
diff --git a/keyboards/ergodox_ez/keymaps/drashna/readme.md b/keyboards/ergodox_ez/keymaps/drashna/readme.md
new file mode 100644
index 0000000000..90fe44861a
--- /dev/null
+++ b/keyboards/ergodox_ez/keymaps/drashna/readme.md
@@ -0,0 +1,9 @@
+# Drashna's ErgoDox EZ Underglow Mod
+
+This is based on the default Ergodox EZ keymap.
+
+This modifieds the keymay so that it uses the underglow to indicate which layer you're on, rather than the top LEDs.
+
+Default colors are "teal" for base layer, "red" for Symbols, and "green" for mouse/media.  Blue would be the next layer, if you had more.
+
+Additionally, the top LEDs are Shift/Control/Alt indicators instead (in that order). 
\ No newline at end of file