ARM split - Add support for dfu-util EE_HANDS flashing (#6543)

* Initial stab at some fake dfu-util-split-left behaviour

* Apply suggestions from code review

Co-Authored-By: fauxpark <fauxpark@gmail.com>

* Clang format fixes

* Fake eeprom init for both left and right hand

1 files changed, 15 insertions, 0 deletions

diff --git a/tmk_core/chibios.mk b/tmk_core/chibios.mk
index c25e28707..62e156187 100644
--- a/tmk_core/chibios.mk
+++ b/tmk_core/chibios.mk
@@ -248,6 +248,21 @@ dfu-util: $(BUILD_DIR)/$(TARGET).bin cpfirmware sizeafter
 # Legacy alias
 dfu-util-wait: dfu-util
 
+# TODO: Remove once ARM has a way to configure EECONFIG_HANDEDNESS
+#       within the emulated eeprom via dfu-util or another tool
+ifneq (,$(filter $(MAKECMDGOALS),dfu-util-split-left))
+    OPT_DEFS += -DINIT_EE_HANDS_LEFT
+endif
+
+ifneq (,$(filter $(MAKECMDGOALS),dfu-util-split-right))
+    OPT_DEFS += -DINIT_EE_HANDS_RIGHT
+endif
+
+dfu-util-split-left: dfu-util
+
+dfu-util-split-right: dfu-util
+
+
 st-link-cli: $(BUILD_DIR)/$(TARGET).hex sizeafter
         $(ST_LINK_CLI) $(ST_LINK_ARGS) -q -c SWD -p $(BUILD_DIR)/$(TARGET).hex -Rst