Refactor where ZMK KConfigs come from.

CMakeLists.txt

@@ -32,7 +32,7 @@ target_sources(app PRIVATE src/hid.c)
 target_sources_ifdef(CONFIG_ZMK_BLE app PRIVATE src/ble.c)
 target_sources_ifdef(CONFIG_ZMK_KSCAN_MOCK_DRIVER app PRIVATE src/kscan_mock.c)
 target_sources_ifdef(CONFIG_ZMK_KSCAN_COMPOSITE_DRIVER app PRIVATE src/kscan_composite.c)
-target_sources(app PRIVATE src/usb_hid.c)
+target_sources_ifdef(CONFIG_ZMK_USB app PRIVATE src/usb_hid.c)
 target_sources_ifdef(CONFIG_ZMK_BLE app PRIVATE src/hog.c)
 target_sources(app PRIVATE src/endpoints.c)
 target_sources(app PRIVATE src/main.c)

Kconfig

@@ -1,11 +1,28 @@
 mainmenu "ZMK Firmware"
 
+config ZMK_KEYBOARD_NAME
+	string "Keyboard Name"
+
+config USB_DEVICE_PRODUCT
+	default ZMK_KEYBOARD_NAME
+
+config BT_DEVICE_NAME
+	default ZMK_KEYBOARD_NAME
+
 config ZMK_KSCAN_EVENT_QUEUE_SIZE
 	int "Size of the event queue for KSCAN events to buffer events"
 	default 4
 
-config ZMK_BLE
-	bool "Enable low energy bluetooth support"
+menu "HID Output Types"
+
+config ZMK_USB
+	bool "USB"
+	select USB
+	select USB_DEVICE_STACK
+	select USB_DEVICE_HID
+
+menuconfig ZMK_BLE
+	bool "BLE (HID over GATT)"
 	select BT
 	select BT_SMP
 	select BT_SMP_SC_PAIR_ONLY
@@ -15,12 +32,31 @@ config ZMK_BLE
 
 if ZMK_BLE
 
+# HID GATT notifications sent this way are *not* picked up by Linux, and possibly others.
+config BT_GATT_NOTIFY_MULTIPLE
+	default n
+
+config BT_DEVICE_APPEARANCE
+	default 961
+
 config ZMK_BLE_PASSKEY_ENTRY
 	bool "Experimental: Requiring typing passkey from host to pair BLE connection"
 	default n
 
+# Incresed stack due to settings API usage
+# CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
+# 
+# CONFIG_BT_SETTINGS=y
+# CONFIG_FLASH=y
+# CONFIG_FLASH_PAGE_LAYOUT=y
+# CONFIG_FLASH_MAP=y
+# CONFIG_NVS=y
+# CONFIG_SETTINGS=y
+
 endif
 
+endmenu
+
 config ZMK_KSCAN_MOCK_DRIVER
 	bool "Enable mock kscan driver to simulate key presses"
 	default n
@@ -34,7 +70,6 @@ menu "ZMK Actions"
 
 config ZMK_ACTION_MOD_TAP
 	bool "Enable the Mod-Tap Action"
-	default true
 	
 endmenu
 

README.md

@@ -10,7 +10,6 @@ Basic WIP website to learn more: https://zmk.netlify.app/
 ## TODO
 
 - Document boards/shields/keymaps usage.
-- Move most Kconfig setings to the board/keymap defconfigs and out of the toplevel `prj.conf` file.
 - Display support, including displaying BLE SC auth numbers for "numeric comparison" mode if we have the screen.
 - Fix BT settings to work w/ Zephyr. Do we really need them?
 - Tests?

boards/shields/petejohanson_handwire/Kconfig.defconfig

@@ -1,4 +1,13 @@
 
 if SHIELD_PETEJOHANSON_HANDWIRE
 
+config ZMK_KEYBOARD_NAME
+	default "Pete's Handwire Breadboard"
+
+config ZMK_BLE
+	default y
+
+config ZMK_ACTION_MOD_TAP
+	default y
+
 endif

prj.conf

@@ -1,23 +1,2 @@
-CONFIG_USB=y
-CONFIG_USB_DEVICE_STACK=y
-CONFIG_USB_DEVICE_HID=y
-CONFIG_USB_DEVICE_PRODUCT="ZMK Firmware"
-CONFIG_ZMK_BLE=y
-CONFIG_ZMK_ACTION_MOD_TAP=y
-# HID GATT notifications sent this way are *not* picked up by Linux, and possibly others.
-CONFIG_BT_GATT_NOTIFY_MULTIPLE=n
-CONFIG_BT_DEVICE_NAME="ZMK Keyboard"
-CONFIG_BT_DEVICE_APPEARANCE=961
 # CONFIG_LOG=y
 # CONFIG_ZMK_LOG_LEVEL_DBG=y
-# CONFIG_KSCAN_LOG_LEVEL_DBG=y
-
-# Incresed stack due to settings API usage
-# CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
-# 
-# CONFIG_BT_SETTINGS=y
-# CONFIG_FLASH=y
-# CONFIG_FLASH_PAGE_LAYOUT=y
-# CONFIG_FLASH_MAP=y
-# CONFIG_NVS=y
-# CONFIG_SETTINGS=y

src/endpoints.c

@@ -13,12 +13,14 @@ int zmk_endpoints_init()
 
     LOG_DBG("");
 
+#ifdef CONFIG_ZMK_USB
     err = zmk_usb_hid_init();
     if (err)
     {
         LOG_ERR("USB HID Init Failed\n");
         return err;
     }
+#endif /* CONFIG_ZMK_USB */
 
 #ifdef CONFIG_ZMK_BLE
     err = zmk_hog_init();
@@ -38,10 +40,12 @@ int zmk_endpoints_send_report()
     int err;
     struct zmk_hid_report *report = zmk_hid_get_report();
 
-    // if (zmk_usb_hid_send_report(report) != 0)
-    // {
-    //     // LOG_DBG("USB Send Failed");
-    // }
+#ifdef CONFIG_ZMK_USB
+    if (zmk_usb_hid_send_report(report) != 0)
+    {
+        LOG_DBG("USB Send Failed");
+    }
+#endif /* CONFIG_ZMK_USB */
 
 #ifdef CONFIG_ZMK_BLE
     err = zmk_hog_send_report(report);