Convert V-USB usbdrv to a submodule

.gitmodules

@@ -16,3 +16,6 @@
 [submodule "lib/lufa"]
 	path = lib/lufa
 	url = https://github.com/qmk/lufa
+[submodule "lib/vusb"]
+	path = lib/vusb
+	url = https://github.com/obdev/v-usb

Makefile

@@ -567,6 +567,7 @@ ifndef SKIP_GIT
 	if [ ! -e lib/chibios-contrib ]; then git submodule sync lib/chibios-contrib && git submodule update --depth 50 --init lib/chibios-contrib; fi
 	if [ ! -e lib/ugfx ]; then git submodule sync lib/ugfx && git submodule update --depth 50 --init lib/ugfx; fi
 	if [ ! -e lib/lufa ]; then git submodule sync lib/lufa && git submodule update --depth 50 --init lib/lufa; fi
+	if [ ! -e lib/vusb ]; then git submodule sync lib/vusb && git submodule update --depth 50 --init lib/vusb; fi
 	git submodule status --recursive 2>/dev/null | \
 	while IFS= read -r x; do \
 		case "$$x" in \

docs/ChangeLog/20200530/PR8321.md

@@ -0,0 +1,5 @@
+# Converting V-USB usbdrv to a submodule
+
+[#8321](https://github.com/qmk/qmk_firmware/pull/8321) and [qmk_compiler#62](https://github.com/qmk/qmk_compiler/pull/62).
+
+These PRs move the V-USB driver code out of the qmk_firmware repository and into a submodule pointed at https://github.com/obdev/v-usb. This will make it easier to update the codebase if needed, while applying any potential QMK-specific modifications by forking it to the QMK GitHub organization.

tmk_core/common/command.c

@@ -43,10 +43,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #    include "mousekey.h"
 #endif
 
-#ifdef PROTOCOL_VUSB
-#    include "usbdrv.h"
-#endif
-
 #ifdef AUDIO_ENABLE
 #    include "audio.h"
 #endif /* AUDIO_ENABLE */

tmk_core/protocol/iwrap.mk

@@ -16,11 +16,17 @@ VPATH += $(TMK_DIR)/protocol/iwrap
 # V-USB
 #
 VUSB_DIR = protocol/vusb
-OPT_DEFS += -DPROTOCOL_VUSB
-SRC +=	$(VUSB_DIR)/vusb.c \
-	$(VUSB_DIR)/usbdrv/usbdrv.c \
-	$(VUSB_DIR)/usbdrv/usbdrvasm.S \
-	$(VUSB_DIR)/usbdrv/oddebug.c
-VPATH += $(TMK_DIR)/protocol/vusb:$(TMK_DIR)/protocol/vusb/usbdrv
 
+# Path to the V-USB library
+VUSB_PATH = $(LIB_PATH)/vusb
+
+SRC += $(VUSB_DIR)/vusb.c \
+	$(VUSB_PATH)/usbdrv/usbdrv.c \
+	$(VUSB_PATH)/usbdrv/usbdrvasm.S \
+	$(VUSB_PATH)/usbdrv/oddebug.c
 
+# Search Path
+VPATH += $(TMK_PATH)/$(VUSB_DIR)
+VPATH += $(VUSB_PATH)
+
+OPT_DEFS += -DPROTOCOL_VUSB

tmk_core/protocol/iwrap/main.c

@@ -29,7 +29,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "iwrap.h"
 #ifdef PROTOCOL_VUSB
 #    include "vusb.h"
-#    include "usbdrv.h"
+#    include <usbdrv/usbdrv.h>
 #endif
 #include "uart.h"
 #include "suart.h"

tmk_core/protocol/vusb.mk

@@ -1,22 +1,23 @@
 VUSB_DIR = protocol/vusb
 
-OPT_DEFS += -DPROTOCOL_VUSB
+# Path to the V-USB library
+VUSB_PATH = $(LIB_PATH)/vusb
 
-SRC +=	$(VUSB_DIR)/main.c \
+SRC += $(VUSB_DIR)/main.c \
 	$(VUSB_DIR)/vusb.c \
-	$(VUSB_DIR)/usbdrv/usbdrv.c \
-	$(VUSB_DIR)/usbdrv/usbdrvasm.S \
-	$(VUSB_DIR)/usbdrv/oddebug.c
-
+	$(VUSB_PATH)/usbdrv/usbdrv.c \
+	$(VUSB_PATH)/usbdrv/usbdrvasm.S \
+	$(VUSB_PATH)/usbdrv/oddebug.c
 
 ifdef NO_UART
-SRC +=	$(COMMON_DIR)/sendchar_null.c
+SRC += $(COMMON_DIR)/sendchar_null.c
 else
-SRC +=	$(COMMON_DIR)/sendchar_uart.c \
+SRC += $(COMMON_DIR)/sendchar_uart.c \
 	$(COMMON_DIR)/uart.c
 endif
 
-
 # Search Path
 VPATH += $(TMK_PATH)/$(VUSB_DIR)
-VPATH += $(TMK_PATH)/$(VUSB_DIR)/usbdrv
+VPATH += $(VUSB_PATH)
+
+OPT_DEFS += -DPROTOCOL_VUSB

tmk_core/protocol/vusb/main.c

@@ -12,8 +12,8 @@
 #include <avr/wdt.h>
 #include <avr/sleep.h>
 #include <util/delay.h>
-#include "usbdrv.h"
-#include "oddebug.h"
+#include <usbdrv/usbdrv.h>
+#include <usbdrv/oddebug.h>
 #include "vusb.h"
 #include "keyboard.h"
 #include "host.h"

tmk_core/protocol/vusb/sendchar_usart.c

@@ -3,7 +3,7 @@
  * License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
  */
 #include <stdint.h>
-#include "oddebug.h"
+#include <usbdrv/oddebug.h>
 #include "sendchar.h"
 
 #if DEBUG_LEVEL > 0