feat: new project layout and new boards support

.github/workflows/build.yml

@@ -1,90 +1,5 @@
 on: [push, pull_request, workflow_dispatch]
 
-name: Build
-
 jobs:
-  matrix:
-    runs-on: ubuntu-latest
-    name: Fetch Build Keyboards
-    outputs:
-      matrix: ${{ steps.set-matrix.outputs.matrix }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Install yaml2json
-        run: python3 -m pip install remarshal
-      - id: set-matrix
-        name: Fetch Build Matrix
-        run: |
-          matrix=$(yaml2json build.yaml | jq -c .)
-          yaml2json build.yaml
-          echo "::set-output name=matrix::${matrix}"
   build:
-    runs-on: ubuntu-latest
-    container:
-      image: zmkfirmware/zmk-build-arm:stable
-    needs: matrix
-    name: Build
-    strategy:
-      fail-fast: false
-      matrix: ${{fromJson(needs.matrix.outputs.matrix)}}
-    steps:
-      - name: Prepare variables
-        id: variables
-        run: |
-          if [ -n "${{ matrix.shield }}" ]; then
-            EXTRA_CMAKE_ARGS="-DSHIELD=${{ matrix.shield }}"
-            ARTIFACT_NAME="${{ matrix.shield }}-${{ matrix.board }}-zmk"
-            DISPLAY_NAME="${{ matrix.shield }} - ${{ matrix.board }}"
-          else
-            EXTRA_CMAKE_ARGS=
-            DISPLAY_NAME="${{ matrix.board }}"
-            ARTIFACT_NAME="${{ matrix.board }}-zmk"
-          fi
-          echo ::set-output name=extra-cmake-args::${EXTRA_CMAKE_ARGS}
-          echo ::set-output name=artifact-name::${ARTIFACT_NAME}
-          echo ::set-output name=display-name::${DISPLAY_NAME}
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Cache west modules
-        uses: actions/cache@v2
-        env:
-          cache-name: cache-zephyr-modules
-        with:
-          path: |
-            modules/
-            tools/
-            zephyr/
-            bootloader/
-            zmk/
-          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('manifest-dir/west.yml') }}
-          restore-keys: |
-            ${{ runner.os }}-build-${{ env.cache-name }}-
-            ${{ runner.os }}-build-
-            ${{ runner.os }}-
-      - name: West Init
-        run: west init -l config
-      - name: West Update
-        run: west update
-      - name: West Zephyr export
-        run: west zephyr-export
-      - name: West Build (${{ steps.variables.outputs.display-name }})
-        run: |
-          west build -s zmk/app -b ${{ matrix.board }} -- -DZEPHYR_EXTRA_MODULES="$PWD/zmk/app/drivers;${GITHUB_WORKSPACE}/config/hhkb_drivers" -DZMK_CONFIG=${GITHUB_WORKSPACE}/config ${{ steps.variables.outputs.extra-cmake-args }} ${{ matrix.cmake-args }}
-      - name: ${{ steps.variables.outputs.display-name }} Kconfig file
-        run: cat build/zephyr/.config | grep -v "^#" | grep -v "^$"
-      - name: Rename artifacts
-        run: |
-          mkdir build/artifacts
-          if [ -f build/zephyr/zmk.uf2 ]
-          then
-            cp build/zephyr/zmk.uf2 "build/artifacts/${{ steps.variables.outputs.artifact-name }}.uf2"
-          elif [ -f build/zephyr/zmk.hex ]
-          then
-            cp build/zephyr/zmk.hex "build/artifacts/${{ steps.variables.outputs.artifact-name }}.hex"
-          fi
-      - name: Archive (${{ steps.variables.outputs.display-name }})
-        uses: actions/upload-artifact@v2
-        with:
-          name: firmware
-          path: build/artifacts
+    uses: zmkfirmware/zmk/.github/workflows/build-user-config.yml@main

.gitignore

@@ -0,0 +1,6 @@
+/.vscode/
+/.west/
+/build/
+/modules/
+/zephyr/
+/zmk/

CHANGELOG.md

@@ -0,0 +1,23 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+
+- WHKB Pro2 Rev A support.
+
+### Changed
+
+- Upgraded to Zephyr 3.2 and latest ZMK.
+- New project layout based on Zephyr recommendations.
+
+## 1.0.0 - 2022-05-13
+
+Initial release.
+
+[unreleased]: https://github.com/kanru/hhkb-zmk/compare/039f708e5301819adebd99227f8592b7cd955ebe...HEAD

README.md

@@ -1,22 +1,64 @@
-# HHKB Pro 2 with nice!nano board and ZMK firmware
+# HHKB Pro 2 with ZMK firmware
+
+This project provides an out-of-tree Zephyr module and shield definition
+for the HHKB Pro2 daugther board.
+
+The `hhkb_pro2` shield defines the default HHKB keymap and `zmk,kscan`
+chosen. Any board can use the `hhkb_pro2` shield by defining the
+`hhkb_pro2_connector` gpio nexus node. Examples can be find in
+[custom_pro2.overlay](config/boards/shields/custom_pro2/custom_pro2.overlay) and
+[whkb_pro2.dts](config/boards/arm/whkb_pro2/whkb_pro2.dts).
+
+## Customizing
+
+Clone this repository then add your keymap overlay to the `custom_pro2` shield.
+You can also create more complex customization by creating entirely new boards or
+shields.
+
+The default Github Actions will build the firmware using the [build.yml](./build.yaml)
+definition.
 
 ## Build locally
 
 Follow the steps in the [official ZMK document](https://zmk.dev/docs/user-setup) to setup build environment.
 
-Add the extra kscan module:
+Setup Zephyr
+
+```sh
+west init -l config
+west update
+```
+
+To build nice_nano_v2 based board:
+
+```sh
+west build -s zmk/app -p -b nice_nano_v2 -- \
+    -DSHIELD="hhkb_pro2 custom_pro2" \
+    -DZMK_CONFIG=$PWD/config
+```
+
+or to build WHKB Pro2:
 
 ```sh
-west build -b nice_nano_v2 -- \
-    -DSHIELD=hhkb \
-    -DZEPHYR_EXTRA_MODULES=$ZMK_PATH/app/drivers/;$WORKSPACE_PATH/config/hhkb_drivers/ \
-    -DZMK_CONFIG=$WORKSPACE_PATH/config
+west build -s zmk/app -p -b whkb_pro2 -- \
+    -DSHIELD=hhkb_pro2 \
+    -DZMK_CONFIG=$PWD/config
 ```
 
-## Soldering (WIP)
+The finished UF2 file is at `build/zephyr/zmk.uf2`
+
+## Soldering a custom board
+
+The default configuration in `custom_pro2` is based on
+the `nice_nano_v2` board. It only uses the pins on the
+left side. The pins' order is upside down so the wires
+can be bend easily under the case.
+
+It take advantages of the high drive capability of nRF52
+GPIO to power the HHKB Pro2 daughter board.
 
-![parts](./images/parts.jpg)
+![parts](./docs/images/parts.jpg)
 
-![connector](./images/connector.jpg)
+![connector](./docs/images/connector.jpg)
 
-![board](./images/board.jpg)
+![board](./docs/images/board.jpg)

build.yaml

@@ -13,5 +13,7 @@
 #
 ---
 include:
+  - board: whkb_pro2
+    shield: hhkb_pro2
   - board: nice_nano_v2
-    shield: hhkb
+    shield: hhkb_pro2 custom_pro2

config/boards/arm/whkb_pro2/Kconfig

@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: MIT
+
+config BOARD_ENABLE_DCDC
+    bool "Enable DCDC mode"
+    select SOC_DCDC_NRF52X
+    default y
+    depends on BOARD_WHKB_PRO2

config/boards/arm/whkb_pro2/Kconfig.board

@@ -0,0 +1,6 @@
+# Copyright (c) 2023 Kan-Ru Chen
+# SPDX-License-Identifier: MIT
+
+config BOARD_WHKB_PRO2
+    bool "WHKB Pro2"
+    depends on SOC_NRF52840_QIAA

config/boards/arm/whkb_pro2/Kconfig.defconfig

@@ -0,0 +1,28 @@
+# Copyright (c) 2023 Kan-Ru Chen
+# SPDX-License-Identifier: MIT
+
+if BOARD_WHKB_PRO2
+
+config ZMK_KEYBOARD_NAME
+    default "WHKB Pro2 Rev A"
+
+config BOARD
+    default "whkb_pro2"
+
+if USB_DEVICE_STACK
+
+config USB_NRFX
+    default y
+
+endif # USB_DEVICE_STACK
+
+config BT_CTLR
+    default BT
+
+config ZMK_BLE
+    default y
+
+config ZMK_USB
+    default y
+
+endif # BOARD_WHKB_PRO2

config/boards/arm/whkb_pro2/whkb_pro2.dts

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2021 The ZMK Contributors
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+/dts-v1/;
+#include <nordic/nrf52840_qiaa.dtsi>
+#include <zephyr/dt-bindings/gpio/nordic-nrf-gpio.h>
+
+/ {
+    model = "whkb_pro2";
+    compatible = "applet,whkb_pro2";
+
+    chosen {
+        zephyr,code-partition = &code_partition;
+        zephyr,sram = &sram0;
+        zephyr,flash = &flash0;
+        zephyr,console = &cdc_acm_uart;
+        zmk,battery = &vbatt0;
+    };
+
+    vbatt0: vbatt0 {
+        compatible = "zmk,battery-voltage-divider";
+        io-channels = <&adc 1>; // P0.03
+        output-ohms = <2000000>;
+        full-ohms = <(1000000 + 2000000)>;
+        power-gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>; // P0.02
+    };
+
+    hhkb_pro2_connector: hhkb_pro2_connector {
+        compatible = "zmk,hhkb-pro2-header";
+        #gpio-cells = <2>;
+        gpio-map-mask = <0xffffffff 0xffffffc0>;
+        gpio-map-pass-thru = <0 0x3f>;
+        gpio-map = <0 0 &gpio0 31 NRF_GPIO_DRIVE_S0H1>,
+                   <1 0 &gpio0 4 0>,
+                   <2 0 &gpio0 5 0>,
+                   <3 0 &gpio0 22 0>,
+                   <4 0 &gpio0 7 0>,
+                   <5 0 &gpio1 9 0>,
+                   <6 0 &gpio0 12 0>,
+                   <7 0 &gpio0 23 0>,
+                   <8 0 &gpio0 21 0>,
+                   <9 0 &gpio0 19 0>;
+    };
+};
+
+&adc {
+    status = "okay";
+};
+
+&gpio0 {
+    status = "okay";
+};
+
+&gpio1 {
+    status = "okay";
+};
+
+&usbd {
+    status = "okay";
+    cdc_acm_uart: cdc_acm_uart {
+        compatible = "zephyr,cdc-acm-uart";
+    };
+};
+
+&flash0 {
+    /*
+     * For more information, see:
+     * http://docs.zephyrproject.org/latest/devices/dts/flash_partitions.html
+     */
+    partitions {
+        compatible = "fixed-partitions";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        sd_partition: partition@0 {
+            label = "softdevice";
+            reg = <0x00000000 0x00026000>;
+        };
+        code_partition: partition@26000 {
+            label = "code_partition";
+            reg = <0x00026000 0x000c6000>;
+        };
+
+        /*
+         * The flash starting at 0x000ec000 and ending at
+         * 0x000f3fff is reserved for use by the application.
+         */
+
+        /*
+         * Storage partition will be used by FCB/LittleFS/NVS
+         * if enabled.
+         */
+        storage_partition: partition@ec000 {
+            label = "storage";
+            reg = <0x000ec000 0x00008000>;
+        };
+
+        boot_partition: partition@f4000 {
+            label = "adafruit_boot";
+            reg = <0x000f4000 0x0000c000>;
+        };
+    };
+};

config/boards/arm/whkb_pro2/whkb_pro2_defconfig

@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: MIT
+
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52840_QIAA=y
+CONFIG_BOARD_WHKB_PRO2=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+# Use pinctrl
+CONFIG_PINCTRL=y
+
+CONFIG_USE_DT_CODE_PARTITION=y
+CONFIG_BUILD_OUTPUT_UF2=y
+
+CONFIG_MPU_ALLOW_FLASH_WRITE=y
+CONFIG_NVS=y
+CONFIG_SETTINGS_NVS=y
+CONFIG_FLASH=y
+CONFIG_FLASH_PAGE_LAYOUT=y
+CONFIG_FLASH_MAP=y

config/boards/shields/custom_pro2/Kconfig.defconfig

@@ -0,0 +1,6 @@
+if SHIELD_CUSTOM_PRO2
+
+config ZMK_KEYBOARD_NAME
+    default "Custom HHKB Pro2"
+
+endif

config/boards/shields/custom_pro2/Kconfig.shield

@@ -0,0 +1,3 @@
+config SHIELD_CUSTOM_PRO2
+    def_bool $(shields_list_contains,custom_pro2)
+    depends on KSCAN_HHKB_PRO2