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

8 files changed, 11 insertions, 15 deletions

diff --git a/keyboards/nyquist/config.h b/keyboards/nyquist/config.h
index 55500df79b..5e3dc91888 100644
--- a/keyboards/nyquist/config.h
+++ b/keyboards/nyquist/config.h
@@ -20,8 +20,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include "config_common.h"
 
-#ifdef SUBPROJECT_rev1
-    #include "rev1/config.h"
-#endif
+#include QMK_SUBPROJECT_CONFIG_H
 
 #endif  // CONFIG_H
diff --git a/keyboards/nyquist/nyquist.h b/keyboards/nyquist/nyquist.h
index e8cccecf5f..dcc2a4ffd4 100644
--- a/keyboards/nyquist/nyquist.h
+++ b/keyboards/nyquist/nyquist.h
@@ -1,9 +1,9 @@
 #ifndef NYQUIST_H
 #define NYQUIST_H
 
-#ifdef SUBPROJECT_rev1
-    #include "rev1.h"
-#endif
+#include QMK_SUBPROJECT_H
+
+#include "quantum.h"
 
 // Used to create a keymap using only KC_ prefixed keys
 #define KC_KEYMAP( \
@@ -21,6 +21,6 @@
         KC_##L40, KC_##L41, KC_##L42, KC_##L43, KC_##L44, KC_##L45, KC_##R40, KC_##R41, KC_##R42, KC_##R43, KC_##R44, KC_##R45 \
     )
 
-#include "quantum.h"
+#define LAYOUT_ortho_5x12 KEYMAP
 
 #endif
\ No newline at end of file
diff --git a/keyboards/nyquist/rev1/config.h b/keyboards/nyquist/rev1/config.h
index af4f7dbb1c..3615768871 100644
--- a/keyboards/nyquist/rev1/config.h
+++ b/keyboards/nyquist/rev1/config.h
@@ -18,7 +18,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef REV1_CONFIG_H
 #define REV1_CONFIG_H
 
-#include "../config.h"
+#include QMK_KEYBOARD_CONFIG_H
 
 /* USB Device descriptor parameter */
 #define VENDOR_ID       0xCEEB
diff --git a/keyboards/nyquist/rev1/rev1.c b/keyboards/nyquist/rev1/rev1.c
index 80780831f3..7b3228fa65 100644
--- a/keyboards/nyquist/rev1/rev1.c
+++ b/keyboards/nyquist/rev1/rev1.c
@@ -1,4 +1,4 @@
-#include "nyquist.h"
+#include QMK_SUBPROJECT_H
 
 #ifdef AUDIO_ENABLE
     float tone_startup[][2] = SONG(STARTUP_SOUND);
diff --git a/keyboards/nyquist/rev1/rev1.h b/keyboards/nyquist/rev1/rev1.h
index f2d0ece790..cf9bf80203 100644
--- a/keyboards/nyquist/rev1/rev1.h
+++ b/keyboards/nyquist/rev1/rev1.h
@@ -1,7 +1,7 @@
 #ifndef REV1_H
 #define REV1_H
 
-#include "../nyquist.h"
+#include QMK_KEYBOARD_H
 
 //void promicro_bootloader_jmp(bool program);
 #include "quantum.h"
diff --git a/keyboards/nyquist/rev1/rules.mk b/keyboards/nyquist/rev1/rules.mk
index 80a942d06f..7b30c0beff 100644
--- a/keyboards/nyquist/rev1/rules.mk
+++ b/keyboards/nyquist/rev1/rules.mk
@@ -1,5 +1 @@
 BACKLIGHT_ENABLE = no
-
-ifndef QUANTUM_DIR
-	include ../../../Makefile
-endif
diff --git a/keyboards/nyquist/rules.mk b/keyboards/nyquist/rules.mk
index 3f40ff2f82..07cdba4bf6 100644
--- a/keyboards/nyquist/rules.mk
+++ b/keyboards/nyquist/rules.mk
@@ -73,3 +73,5 @@ USE_I2C = yes
 SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
 
 CUSTOM_MATRIX = yes
+
+LAYOUTS = ortho_5x12
\ No newline at end of file
diff --git a/keyboards/nyquist/serial.c b/keyboards/nyquist/serial.c
index 6faed09ce0..74bcbb6bf6 100644
--- a/keyboards/nyquist/serial.c
+++ b/keyboards/nyquist/serial.c
@@ -12,7 +12,7 @@
 #include <stdbool.h>
 #include "serial.h"
 
-#ifdef USE_SERIAL
+#ifndef USE_I2C
 
 // Serial pulse period in microseconds. Its probably a bad idea to lower this
 // value.