feat(shields): add pockettype thumb board

app/boards/shields/pockettype/CMakeLists.txt

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+#
+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+#
+
+target_sources_ifdef(CONFIG_SHIELD_POCKETTYPE app PRIVATE pockettype_pwr_led.c)

app/boards/shields/pockettype/Kconfig.defconfig

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+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+if SHIELD_POCKETTYPE
+
+config ZMK_KEYBOARD_NAME
+    default "Pockettype"
+
+endif

app/boards/shields/pockettype/Kconfig.shield

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+# Copyright (c) 2020 The ZMK Contributors
+# SPDX-License-Identifier: MIT
+
+config SHIELD_POCKETTYPE
+	def_bool $(shields_list_contains,pockettype)

app/boards/shields/pockettype/README.md

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+# PocketType!
+
+Standard setup for the [PocketType!](https://mechboards.co.uk/shop/kits/pockettype/) mini keyboard.

app/boards/shields/pockettype/pockettype.keymap

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+/*
+ * 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>
+
+/ {
+	keymap {
+		compatible = "zmk,keymap";
+
+		default_layer {
+			bindings = <
+				&kp ESCAPE  &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 ENTER
+				&kp LSHFT   &kp Z     &kp X    &kp C    &kp V  &kp B   &kp N     &kp M  &kp COMMA  &kp DOT  &kp SQT  &kp RSHFT
+				&kp LCTRL   &kp LGUI  &kp LALT &kp CAPS &mo 1  &kp DEL &kp SPACE &mo 2  &kp LEFT   &kp DOWN &kp UP   &kp RIGHT
+			>;
+		};
+
+		lower_layer {
+			bindings = <
+				&kp N1   &kp N2 &kp N3   &kp N4   &kp N5    &kp N6    &kp N7   &kp N8    &kp N9   &kp N0   &kp MINUS &kp EQUAL
+				&kp EXCL &kp AT &kp HASH &kp DLLR &kp PRCNT &kp CARET &kp AMPS &kp ASTRK &kp LPAR &kp RPAR &kp SLASH &kp BSLH
+				&kp F1   &kp F2 &kp F3   &kp F4   &kp F5    &kp F6    &kp F7   &kp F8    &kp F9   &kp F10  &kp F11   &kp F12
+				&trans   &trans &trans   &trans   &trans    &trans    &trans   &trans    &trans   &kp PIPE &kp LBKT  &kp RBKT
+			>;
+		};
+
+		raise_layer {
+			bindings = <
+				&trans     &trans     &kp PG_UP  &kp UP   &kp PG_DN &trans  &trans &trans &trans           &trans       &trans       &kp DEL
+				&trans     &trans     &kp LEFT   &kp DOWN &kp RIGHT &trans &trans &trans &trans           &trans       &trans       &kp INSERT
+				&trans     &trans     &kp HOME   &trans   &kp END   &trans  &trans &trans &trans           &bootloader  &reset       &kp PSCRN
+				&bt BT_CLR &bt BT_NXT &bt BT_PRV &trans   &trans    &trans  &trans &trans &kp C_PLAY_PAUSE &kp C_VOL_UP &kp C_VOL_DN &kp C_MUTE
+			>;
+		};
+	};
+};

app/boards/shields/pockettype/pockettype.overlay

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+/*
+ * Copyright (c) 2020 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <dt-bindings/zmk/matrix_transform.h>
+
+/ {
+	leds {
+		compatible = "gpio-leds";
+		actled: led_a {
+			gpios = <&pro_micro_a 3 GPIO_ACTIVE_HIGH>;
+			label = "ACT LED";
+		};
+		powerled: led_p {
+			gpios = <&pro_micro_a 2 GPIO_ACTIVE_HIGH>;
+			label = "PWR LED";
+		};
+	};
+
+	kscan0: kscan {
+		compatible = "zmk,kscan-gpio-matrix";
+		label = "KSCAN";
+
+		diode-direction = "col2row";
+
+		col-gpios
+			= <&pro_micro_a 1 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_a 0 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 15 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 14 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 16 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 10 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 8 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 7 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 5 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 4 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 3 GPIO_ACTIVE_HIGH>
+			, <&pro_micro_d 0 GPIO_ACTIVE_HIGH>
+			;
+
+		row-gpios
+			= <&pro_micro_d 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_d 2 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_d 6 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			, <&pro_micro_d 9 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
+			;
+	};
+
+	default_transform: keymap_transform_0 {
+		compatible = "zmk,matrix-transform";
+		columns = <12>;
+		rows = <4>;
+
+		map = <
+RC(0,0) 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(0,11)
+RC(1,0) 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(1,11)
+RC(2,0) 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(2,11)
+RC(3,0) RC(3,1) RC(3,2) RC(3,3) RC(3,4) RC(3,5) RC(3,6) RC(3,7) RC(3,8) RC(3,9) RC(3,10) RC(3,11)
+		>;
+	};
+
+	chosen {
+		zmk,kscan = &kscan0;
+		zmk,matrix_transform = &default_transform;
+	};
+};

app/boards/shields/pockettype/pockettype_pwr_led.c

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+/*
+ * Copyright (c) 2020 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#include <zephyr.h>
+#include <device.h>
+#include <devicetree.h>
+#include <drivers/gpio.h>
+
+#define PWR_LED_NODE DT_ALIAS(powerled)
+
+#if DT_NODE_HAS_STATUS(PWR_LED_NODE, okay)
+#define PWR_LED DT_GPIO_LABEL(PWR_LED_NODE, gpios)
+#define PWR_LED_PIN DT_GPIO_PIN(PWR_LED_NODE, gpios)
+#else
+/* A build error here means your board isn't set up to blink an LED. */
+#error "Unsupported board: pwr_led devicetree alias is not defined"
+#define PWR_LED ""
+#define PIN 0
+#define FLAGS 0
+#endif
+
+static int pwr_led_init(const struct device *dev) {
+    dev = device_get_binding(PWR_LED);
+    if (dev == NULL) {
+        return -EIO;
+    }
+
+    if (gpio_pin_configure(dev, PWR_LED_PIN, GPIO_OUTPUT) < 0) {
+        return -EIO;
+    }
+
+    return gpio_pin_set(dev, PIN, (int)true);
+}
+
+SYS_INIT(pwr_led_init, APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY);