Add Chocofi shield

app/boards/shields/chocofi/Kconfig.defconfig

@@ -0,0 +1,46 @@
+if SHIELD_CHOCOFI_LEFT
+
+config ZMK_KEYBOARD_NAME
+    default "Chocofi"
+
+config ZMK_SPLIT_ROLE_CENTRAL
+    default y
+
+endif
+
+if SHIELD_CHOCOFI_LEFT || SHIELD_CHOCOFI_RIGHT
+
+config ZMK_SPLIT
+    default y
+
+if ZMK_DISPLAY
+
+config I2C
+    default y
+
+config SSD1306
+    default y
+
+config SSD1306_REVERSE_MODE
+    default y
+
+endif # ZMK_DISPLAY
+
+if LVGL
+
+config LV_Z_VDB_SIZE
+    default 64
+
+config LV_Z_DPI
+    default 148
+
+config LV_Z_BITS_PER_PIXEL
+    default 1
+
+choice LV_COLOR_DEPTH
+    default LV_COLOR_DEPTH_1
+endchoice
+
+endif # LVGL
+
+endif

app/boards/shields/chocofi/Kconfig.shield

@@ -0,0 +1,8 @@
+# Copyright (c) 2023 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_CHOCOFI_LEFT
+    def_bool $(shields_list_contains,chocofi_left)
+
+config SHIELD_CHOCOFI_RIGHT
+    def_bool $(shields_list_contains,chocofi_right)

app/boards/shields/chocofi/chocofi.conf

@@ -0,0 +1,8 @@
+# Uncomment the following line to enable the Corne OLED Display
+#CONFIG_ZMK_DISPLAY=y
+
+# Uncomment on connection issues. Boosts BT power
+#CONFIG_BT_CTLR_TX_PWR_PLUS_8=y
+
+# Turn on logging, and set ZMK logging to debug output
+#CONFIG_ZMK_USB_LOGGING=y

app/boards/shields/chocofi/chocofi.dtsi

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2023 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix_transform.h>
+
+/ {
+    chosen {
+        zephyr,display = &oled;
+        zmk,kscan = &kscan0;
+        zmk,matrix_transform = &default_transform;
+    };
+
+    default_transform: keymap_transform_0 {
+        compatible = "zmk,matrix-transform";
+        columns = <10>;
+        rows = <4>;
+        map = <
+RC(0,1) RC(0,2) RC(0,3) RC(0,4) RC(0,5)  RC(0,6) RC(0,7) RC(0,8) RC(0,9) RC(0,10)
+RC(1,1) RC(1,2) RC(1,3) RC(1,4) RC(1,5)  RC(1,6) RC(1,7) RC(1,8) RC(1,9) RC(1,10)
+RC(2,1) RC(2,2) RC(2,3) RC(2,4) RC(2,5)  RC(2,6) RC(2,7) RC(2,8) RC(2,9) RC(2,10)
+                RC(3,3) RC(3,4) RC(3,5)  RC(3,6) RC(3,7) RC(3,8)
+        >;
+    };
+
+    kscan0: kscan {
+        compatible = "zmk,kscan-gpio-matrix";
+
+        diode-direction = "col2row";
+        row-gpios
+            = <&pro_micro 4 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro 5 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            , <&pro_micro 7 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+            ;
+
+    };
+};
+&pro_micro_i2c {
+    status = "okay";
+
+    oled: ssd1306@3c {
+        compatible = "solomon,ssd1306fb";
+        reg = <0x3c>;
+        label = "DISPLAY";
+        width = <128>;
+        height = <32>;
+        segment-offset = <0>;
+        page-offset = <0>;
+        display-offset = <0>;
+        multiplex-ratio = <31>;
+        segment-remap;
+        com-invdir;
+        com-sequential;
+        prechargep = <0x22>;
+    };
+};

app/boards/shields/chocofi/chocofi.keymap

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2023 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <behaviors.dtsi>
+#include <dt-bindings/zmk/keys.h>
+#include <dt-bindings/zmk/bt.h>
+
+/ {
+    keymap {
+        compatible = "zmk,keymap";
+
+        default_layer {
+        /*
+        ╭──────┬───────┬───────┬───────┬───────╮  ╭──────┬───────┬───────┬───────┬───────╮
+        │  Q   │  W    │  E    │  R    │  B    │  │  J   │  L    │  U    │  Y    │  ;    │
+        │  A   │  R    │  S    │  T    │  G    │  │  M   │  N    │  E    │  I    │  O    │
+        │  Z   │  X    │  C    │  D    │  V    │  │  K   │  H    │  ,    │  .    │  /    │
+        ╰──────┴───────╮ ALT   │ SPC   │ GUI   │  │ SHFT │ ENT   │ BSP   │───────┴───────╯
+                       ╰───────┴───────┴───────╯  ╰──────┴───────┴───────╯
+        */
+        bindings = <
+        &kp Q &kp W &kp F &kp P &kp B   /**/  &kp J &kp L &kp U &kp Y &kp SEMI
+        &kp A &kp R &kp S &kp T &kp G   /**/  &kp M &kp N &kp E &kp I &kp O
+        &kp Z &kp X &kp C &kp D &kp V   /**/  &kp K &kp H &kp COMMA &kp DOT &kp FSLH
+             &kp LALT &kp SPC &kp LGUI  /**/  &kp LSHFT &kp RET &kp BSPC
+        >;
+        };
+    };
+};

app/boards/shields/chocofi/chocofi.zmk.yml

@@ -0,0 +1,13 @@
+file_format: "1"
+id: chocofi
+name: Chocofi
+type: shield
+url: https://github.com/pashutk/chocofi
+requires: [pro_micro]
+exposes: [i2c_oled]
+features:
+  - keys
+  - display
+siblings:
+  - chocofi_left
+  - chocofi_right

app/boards/shields/chocofi/chocofi_left.overlay

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2023 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "chocofi.dtsi"
+
+&kscan0 {
+    col-gpios
+        = <&pro_micro 21 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 20 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 19 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 18 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 15 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 14 GPIO_ACTIVE_HIGH>
+        ;
+};

app/boards/shields/chocofi/chocofi_right.overlay

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2023 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include "chocofi.dtsi"
+
+&default_transform {
+    col-offset = <6>;
+};
+
+&kscan0 {
+    col-gpios
+        = <&pro_micro 14 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 15 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 18 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 19 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 20 GPIO_ACTIVE_HIGH>
+        , <&pro_micro 21 GPIO_ACTIVE_HIGH>
+        ;
+};