Lets split eh (#3120)

* Line ending stuff again

* Added Let's Split Eh? Files and updated #USE_IC2 checks to also include th EH revision (can only be used in I2C)

* Added personal keymap, updated some of the EH files

* Created new keyboard file for testing "lets_split_eh" will merge into lets_split once fully functional

* Added split code from lets_split, removed pro micro imports and LED code

THIS IS WORKING CODE, WITHOUT RGB AND BACKLIGHT

* Took back original Lets Slit files for the lets_split keyboard, working in the lets_split_eh folder for now

* Updated eh.c

* More rework of the I2C code, added global flags for split boards.

* Introduced RGB over I2C, having weird edge case issues at the moment though

* Fixed weird I2C edgecase with RGB, although still would like to track down route cause..

* Changed RGB keycodes (static ones) to activate on key-up instead of key-down to elimate weird ghosting issue over I2C

* Lots of changes, mainly externalized the Split keyboard code and added logic for only including when needed.

- Added makefile option "SPLIT_KEYBOARD" that when = yes will include the split keyboard files and custom matrix
- Split keyboard files placed into quantum/split_common/
- Added define option for config files "SPLIT_HAND_PIN" FOr using high/low pin to determine handedness, low = right hand, high = left hand
- Cleaned up split logic for RGB and Backlight so it is only exectuted / included when needed

* Updated documentation for the new makefile options and #defines specific to split keyboards

* Added a bit more info to docs, so people aren't confused

* Modifed Let's Split to use externalized code, also added left and right hand eeprom files to the split_common folder

* Removed some debugging from eh.c

* Small changes to keyboard configs. Also added a default keymap (just a copy of my that_canadian keymap).

* Added a README file to the Let's Split Eh?

* Changed it so RGB static updates are done on key-up ONLY for split boards rather than all boards. Also fixed leftover un-used variable in rgblight.c

* Updated default keymap and my keymap for Let's Split Eh? Updated the comments so it reflects RGB control, and removed audio functions.

* Fixed lets_split_eh not having a default version

* Removed "eh" references from lets_split folder for now

* Took lets_split folder from master to fix travis build errors, weird my local was overriding.

* Changed LAYOUT_ortho_4x12_kc -> LAYOUT_kc_ortho_4x12 to match bakingpy and others

* Removed rules.mk from my lets_split keymap, not needed

* Updated the config_options doc to better explain the usage of "#define SPLIT_HAND_PIN"

4 files changed, 92 insertions, 0 deletions

diff --git a/keyboards/lets_split_eh/eh/config.h b/keyboards/lets_split_eh/eh/config.h
new file mode 100644
index 0000000000..5651ddd8b7
--- /dev/null
+++ b/keyboards/lets_split_eh/eh/config.h
@@ -0,0 +1,47 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+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/>.
+*/
+
+#ifndef EH_CONFIG_H
+#define EH_CONFIG_H
+
+// To let configuration know this is of type EH, which will force I2C irregardless of user config
+#define EH
+
+#include "config_common.h"
+
+/* Let's Split EH? pin-out */
+#define MATRIX_ROW_PINS { B1, B3, D7, B4 }
+#define MATRIX_COL_PINS { F4, F5, C6, B6, B5, D5 }
+#define UNUSED_PINS
+
+#define DIODE_DIRECTION COL2ROW
+
+#define BACKLIGHT_PIN B7
+
+/* number of backlight levels */
+#define BACKLIGHT_LEVELS 3
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN B2
+#define RGBLED_NUM 6    // Number of LEDs (each hand)
+
+/* Split Defines */
+#define SPLIT_HAND_PIN D3
+
+#endif
+
diff --git a/keyboards/lets_split_eh/eh/eh.c b/keyboards/lets_split_eh/eh/eh.c
new file mode 100644
index 0000000000..e748d3ae05
--- /dev/null
+++ b/keyboards/lets_split_eh/eh/eh.c
@@ -0,0 +1,14 @@
+#include "lets_split_eh.h"
+
+void matrix_init_kb(void) {
+
+    // JTAG disable for PORT F. write JTD bit twice within four cycles.
+    MCUCR |= (1<<JTD);
+    MCUCR |= (1<<JTD);
+	
+	// Undo init of RX LED, we use that port currently
+	// DDRB &= ~(1<<0);
+	
+	matrix_init_user();
+};
+
diff --git a/keyboards/lets_split_eh/eh/eh.h b/keyboards/lets_split_eh/eh/eh.h
new file mode 100644
index 0000000000..7dc84fe181
--- /dev/null
+++ b/keyboards/lets_split_eh/eh/eh.h
@@ -0,0 +1,27 @@
+#ifndef EH_H
+#define EH_H
+
+#include "lets_split_eh.h"
+
+#include "quantum.h"
+
+#define LAYOUT( \
+	L00, L01, L02, L03, L04, L05, R00, R01, R02, R03, R04, R05, \
+	L10, L11, L12, L13, L14, L15, R10, R11, R12, R13, R14, R15, \
+	L20, L21, L22, L23, L24, L25, R20, R21, R22, R23, R24, R25, \
+	L30, L31, L32, L33, L34, L35, R30, R31, R32, R33, R34, R35 \
+	) \
+	{ \
+		{ L00, L01, L02, L03, L04, L05 }, \
+		{ L10, L11, L12, L13, L14, L15 }, \
+		{ L20, L21, L22, L23, L24, L25 }, \
+		{ L30, L31, L32, L33, L34, L35 }, \
+        { R00, R01, R02, R03, R04, R05 }, \
+        { R10, R11, R12, R13, R14, R15 }, \
+        { R20, R21, R22, R23, R24, R25 }, \
+        { R30, R31, R32, R33, R34, R35 } \
+	}
+    
+#define LAYOUT_ortho_4x12 LAYOUT
+
+#endif
diff --git a/keyboards/lets_split_eh/eh/rules.mk b/keyboards/lets_split_eh/eh/rules.mk
new file mode 100644
index 0000000000..4bac58533e
--- /dev/null
+++ b/keyboards/lets_split_eh/eh/rules.mk
@@ -0,0 +1,4 @@
+BOOTLOADER = atmel-dfu
+
+BACKLIGHT_ENABLE = yes
+RGBLIGHT_ENABLE = yes
\ No newline at end of file