Add Contra shield (zmkfirmware#633)

* Add Contra Shield (zmkfirmware#1)

* Add bluetooth control layer to contra keymap (zmkfirmware#2)

* fix contra keymap issues

* add bluetooth control layer

* clean up contra files

* add contra.conf file

* add missing bracket for default_layer

* update copyright year to 2021

* add contra metadata file

* refactor pro micro overlay for new syntax

app/boards/shields/contra/Kconfig.defconfig

@@ -0,0 +1,9 @@
+# Copyright (c) 2021 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+if SHIELD_CONTRA
+
+config ZMK_KEYBOARD_NAME
+ default "Contra Keyboard"
+
+endif

app/boards/shields/contra/Kconfig.shield

@@ -0,0 +1,5 @@
+# Copyright (c) 2021 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_CONTRA
+ def_bool $(shields_list_contains,contra)

app/boards/shields/contra/contra.keymap

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2021 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 NUM_MODS 1
+#define BT_CTRL 2
+
+/ {
+ keymap {
+ compatible = "zmk,keymap";
+
+ default_layer {
+ bindings = <
+ &kp ESC &kp Q &kp W &kp E &kp R &kp T &kp Y &kp U &kp I &kp O &kp P &kp BSPC
+ &kp TAB &kp A &kp S &kp D &kp F &kp G &kp H &kp J &kp K &kp L &kp SEMI &kp SQT
+ &kp LSHFT &kp Z &kp X &kp C &kp V &kp B &kp N &kp M &kp COMMA &kp DOT &kp FSLH &kp ENTER
+ &kp LCTRL &kp LGUI &kp LALT &kp BSLH &to DEFAULT &kp SPACE &trans &to NUM_MODS &kp LEFT &kp RIGHT &kp UP &kp DOWN
+ >;
+ };
+
+ num_mods {
+ bindings = <
+ &kp GRAVE &kp N1 &kp N2 &kp N3 &kp N4 &kp N5 &kp N6 &kp N7 &kp N8 &kp N9 &kp N0 &kp DEL
+ &kp TAB &kp F1 &kp F2 &kp F3 &kp F4 &kp F5 &kp F6 &kp MINUS &kp PG_UP &kp LBKT &kp RBKT &kp BSLH
+ &kp LSHFT &kp F7 &kp F8 &kp F9 &kp F10 &kp F11 &kp F12 &kp EQUAL &kp PG_DN &kp HOME &kp END &kp ENTER
+ &kp LCTRL &kp LGUI &kp LALT &reset &to DEFAULT &kp SPACE &trans &mo BT_CTRL &kp LEFT &kp RIGHT &kp UP &kp DOWN
+ >;
+ };
+
+ bt_control {
+ bindings = <
+ &bt BT_CLR &bt BT_SEL 0 &bt BT_SEL 1 &bt BT_SEL 2 &bt BT_SEL 3 &bt BT_SEL 4 &trans &trans &trans &trans &trans &trans
+ &trans &trans &trans &trans &trans &trans &trans &trans &trans &trans &trans &trans
+ &trans &trans &trans &trans &trans &trans &trans &trans &trans &trans &trans &trans
+ &trans &trans &trans &trans &trans &trans &trans &trans &bt BT_PRV &bt BT_NXT &trans &trans
+ >;
+ };
+ };
+};

app/boards/shields/contra/contra.overlay

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/ {
+ chosen {
+ zmk,kscan = &kscan0;
+ };
+
+ kscan0: kscan_0 {
+ compatible = "zmk,kscan-gpio-matrix";
+ label = "KSCAN";
+ diode-direction = "col2row";
+
+ col-gpios
+ = <&pro_micro 21 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 20 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 9 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 8 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 7 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 6 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 5 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 4 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 3 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 2 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 0 GPIO_ACTIVE_HIGH>
+ , <&pro_micro 1 GPIO_ACTIVE_HIGH>
+ ;
+
+ row-gpios
+ = <&pro_micro 19 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+ , <&pro_micro 14 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+ , <&pro_micro 16 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+ , <&pro_micro 10 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+ ;
+ };
+};

app/boards/shields/contra/contra.zmk.yml

@@ -0,0 +1,8 @@
+file_format: "1"
+id: contra
+name: Contra
+type: shield
+url: https:/ai03-2725/Contra
+requires: [pro_micro]
+features:
+ - keys