Add TG4X rev 2.1 shield

app/boards/shields/tg4x/Kconfig.defconfig

@@ -0,0 +1,9 @@
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+if SHIELD_TG4X
+
+config ZMK_KEYBOARD_NAME
+    default "TG4X"
+
+endif

app/boards/shields/tg4x/Kconfig.shield

@@ -0,0 +1,5 @@
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_TG4X
+   def_bool $(shields_list_contains,tg4x)

app/boards/shields/tg4x/tg4x.keymap

@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2020 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/bt.h>
+
+#define DEFAULT 0
+#define LOWER 1
+#define RAISE 2
+
+/ {
+    behaviors {
+        hm: homerow_mods {
+            compatible = "zmk,behavior-hold-tap";
+            label = "homerow mods";
+            #binding-cells = <2>;
+            tapping_term_ms = <225>;
+            flavor = "tap-preferred";
+            bindings = <&kp>, <&kp>;
+        };
+    };
+};
+
+/ {
+    keymap {
+        compatible = "zmk,keymap";
+
+        default_layer {
+            bindings = <
+    &kp GRAV   &kp Q       &kp W      &kp F         &kp P           &kp B    &kp J    &kp L      &kp U      &kp Y      &kp SCLN    &kp BKSP   
+    &kp TAB    &hm LGUI A  &hm LALT R &hm LCTL S    &hm LSFT T      &kp G    &kp M    &hm RSFT N &hm RCTL E &hm RALT I &hm RGUI O  &kp RET
+    &kp LSFT   &kp Z       &kp X      &kp C         &kp D           &kp V    &kp K    &kp H      &kp CMMA   &kp DOT    &kp FSLH    &kp QUOT
+    &kp LCTL   &kp LALT    &kp LGUI            &lt 1 BKSP     &lt 2 SPC      &kp LARW   &kp DARW   &kp UARW    &kp RARW
+            >;
+        };
+        lower {
+            bindings = <
+    &kp ESC &kp F1 &kp F2 &kp F3 &kp F4 &kp F5 &kp F6 &kp F7 &kp F8 &kp F9 &kp F10 &kp F11 &kp F12 &kp PRSC   
+    &kp DEL &trans &kp VOLU &trans &trans &trans &trans &kp LARW &kp DARW &kp UARW &kp RARW &trans       
+    &trans &trans &kp VOLD &trans &trans &trans &trans &trans &trans &bt BT_PRV &bt BT_NXT &bt BT_CLR
+    &bootloader &reset &trans &trans &trans &trans &bt BT_SEL 0 &bt BT_SEL 1 &bt BT_SEL 2 &bt BT_SEL 3
+            >;
+        };
+
+    raise {
+            bindings = <
+    &kp ESC &kp NUM_1 &kp NUM_2 &kp NUM_3 &kp NUM_4 &kp NUM_5 &kp NUM_6 &kp NUM_7 &kp NUM_8 &kp NUM_9 &kp NUM_0 &kp PRSC   
+    &kp DEL &kp F1    &kp F2    &kp F3    &kp F4    &kp F5    &kp F6    &kp MINUS &kp EQL   &kp LBKT  &kp RBKT  &kp BSLH
+    &trans  &kp F7    &kp F8    &kp F9    &kp F10   &kp F11   &kp F12   &kp TILD  &kp HOME  &kp PGUP  &kp PGDN  &kp END
+    &trans  &trans    &trans &trans &trans &trans &kp M_NEXT &kp M_VOLD &kp M_VOLU &kp M_PLAY
+            >;
+        };
+    };
+};

app/boards/shields/tg4x/tg4x.overlay

@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2020 Pete Johanson, Richard Jones
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix-transform.h>
+
+/ {
+	chosen {
+		zmk,kscan = &kscan0;
+        zmk,matrix_transform = &default_transform;
+	};
+
+	default_transform: keymap_transform_0 {
+        compatible = "zmk,matrix-transform";
+        columns = <7>;
+        rows = <8>;
+        map = <
+    RC(0,0) RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5) RC(0,6) RC(4,0) RC(4,1) RC(4,2) RC(4,3) RC(4,5)
+	RC(1,0) RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5) RC(1,6) RC(5,0) RC(5,1) RC(5,2) RC(5,3) RC(5,4)
+	RC(2,0) RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5) RC(2,6) RC(6,0) RC(6,1) RC(6,2) RC(6,3) RC(6,4)
+	RC(3,0) RC(3,1) RC(3,2) RC(3,4) RC(3,5) RC(7,1) RC(7,2) RC(7,3) RC(7,4)
+	        >;
+    };
+
+	kscan0: kscan {
+		compatible = "zmk,kscan-gpio-matrix";
+		label = "KSCAN";
+		diode-direction = "col2row";
+		
+		col-gpios
+			= <&pro_micro_d  1 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 14 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 15 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_a  0 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_a  1 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_a  2 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_a  3 GPIO_ACTIVE_HIGH>
+			;
+
+		row-gpios
+			= <&pro_micro_a  9 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_a  8 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_d  7 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_a  7 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_d  5 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_a  6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_d  3 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_d  2 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			;
+
+	};
+
+};
+