merge upstream master

9 files changed, 248 insertions, 159 deletions

diff --git a/builddefs/bootloader.mk b/builddefs/bootloader.mk
index eba8e280e4..9f55536423 100644
--- a/builddefs/bootloader.mk
+++ b/builddefs/bootloader.mk
@@ -105,8 +105,8 @@ ifeq ($(strip $(BOOTLOADER)), halfkay)
     ifeq ($(strip $(MCU)), at90usb1286)
         BOOTLOADER_SIZE = 1024
     endif
-    # Teensy LC, 3.x
-    ifneq (,$(filter $(MCU_ORIG), MKL26Z64 MK20DX128 MK20DX256 MK66FX1M0))
+    # Teensy LC, 3.0, 3.1/2, 3.5, 3.6
+    ifneq (,$(filter $(MCU_ORIG), MKL26Z64 MK20DX128 MK20DX256 MK64FX512 MK66FX1M0))
         FIRMWARE_FORMAT = hex
     endif
 endif
@@ -199,6 +199,11 @@ endif
 ifeq ($(strip $(BOOTLOADER)), tinyuf2)
     OPT_DEFS += -DBOOTLOADER_TINYUF2
     BOOTLOADER_TYPE = tinyuf2
+    FIRMWARE_FORMAT = uf2
+endif
+ifeq ($(strip $(BOOTLOADER)), rp2040)
+    OPT_DEFS += -DBOOTLOADER_RP2040
+    BOOTLOADER_TYPE = rp2040
 endif
 ifeq ($(strip $(BOOTLOADER)), halfkay)
     OPT_DEFS += -DBOOTLOADER_HALFKAY
diff --git a/builddefs/build_keyboard.mk b/builddefs/build_keyboard.mk
index dc86b232df..fe95dcaf15 100644
--- a/builddefs/build_keyboard.mk
+++ b/builddefs/build_keyboard.mk
@@ -13,6 +13,14 @@ endif
 include paths.mk
 include $(BUILDDEFS_PATH)/message.mk
 
+# Helper to add defines with a 'QMK_' prefix
+define add_qmk_prefix_defs
+    ifdef $1
+        # Need to cater for 'STM32L4xx+'
+        OPT_DEFS += -DQMK_$(2)="$($1)" -DQMK_$(2)_$(shell echo $($1) | sed -e 's@+@Plus@g' -e 's@[^a-zA-Z0-9]@_@g' | tr '[:lower:]' '[:upper:]')
+    endif
+endef
+
 # Set the qmk cli to use
 QMK_BIN ?= qmk
 
@@ -390,10 +398,18 @@ ifneq ("$(KEYMAP_H)","")
     CONFIG_H += $(KEYMAP_H)
 endif
 
+OPT_DEFS += -DKEYMAP_C=\"$(KEYMAP_C)\"
+
+# If a keymap or userspace places their keymap array in another file instead, allow for it to be included
+# !!NOTE!! -- For this to work, the source file cannot be part of $(SRC), so users should not add it via `SRC += <file>`
+ifneq ($(strip $(INTROSPECTION_KEYMAP_C)),)
+OPT_DEFS += -DINTROSPECTION_KEYMAP_C=\"$(strip $(INTROSPECTION_KEYMAP_C))\"
+endif
+
 # project specific files
 SRC += \
     $(KEYBOARD_SRC) \
-    $(KEYMAP_C) \
+    $(QUANTUM_DIR)/keymap_introspection.c \
     $(QUANTUM_SRC) \
     $(QUANTUM_DIR)/main.c \
 
@@ -436,6 +452,14 @@ else
     include $(TMK_PATH)/protocol/$(PLATFORM_KEY).mk
 endif
 
+# Setup definitions based on the selected MCU
+$(eval $(call add_qmk_prefix_defs,MCU_ORIG,MCU))
+$(eval $(call add_qmk_prefix_defs,MCU_ARCH,MCU_ARCH))
+$(eval $(call add_qmk_prefix_defs,MCU_PORT_NAME,MCU_PORT_NAME))
+$(eval $(call add_qmk_prefix_defs,MCU_FAMILY,MCU_FAMILY))
+$(eval $(call add_qmk_prefix_defs,MCU_SERIES,MCU_SERIES))
+$(eval $(call add_qmk_prefix_defs,BOARD,BOARD))
+
 # TODO: remove this bodge?
 PROJECT_DEFS := $(OPT_DEFS)
 PROJECT_INC := $(VPATH) $(EXTRAINCDIRS) $(KEYBOARD_PATHS)
@@ -469,6 +493,19 @@ check-size: build
 check-md5: build
 objs-size: build
 
+ifeq ($(strip $(TOP_SYMBOLS)),yes)
+all: top-symbols
+check-size: top-symbols
+top-symbols: build
+	echo "###########################################"
+	echo "# Highest flash usage:"
+	$(NM) -Crtd --size-sort $(BUILD_DIR)/$(TARGET).elf | grep -i ' [t] ' | head -n10 | sed -e 's#^0000000#       #g' -e 's#^000000#      #g' -e 's#^00000#     #g' -e 's#^0000#    #g' -e 's#^000#   #g' -e 's#^00#  #g' -e 's#^0# #g'
+	echo "###########################################"
+	echo "# Highest RAM usage:"
+	$(NM) -Crtd --size-sort $(BUILD_DIR)/$(TARGET).elf | grep -i ' [dbv] ' | head -n10 | sed -e 's#^0000000#       #g' -e 's#^000000#      #g' -e 's#^00000#     #g' -e 's#^0000#    #g' -e 's#^000#   #g' -e 's#^00#  #g' -e 's#^0# #g'
+	echo "###########################################"
+endif
+
 include $(BUILDDEFS_PATH)/show_options.mk
 include $(BUILDDEFS_PATH)/common_rules.mk
 
diff --git a/builddefs/build_test.mk b/builddefs/build_test.mk
index 5ad33b19c5..64db99fed9 100644
--- a/builddefs/build_test.mk
+++ b/builddefs/build_test.mk
@@ -38,11 +38,11 @@ CREATE_MAP := no
 VPATH += \
 	$(LIB_PATH)/googletest \
 	$(LIB_PATH)/googlemock \
-	$(LIB_PATH)/printf
+	$(COMMON_VPATH) \
+	$(TEST_PATH)
 
 all: elf
 
-VPATH += $(COMMON_VPATH)
 PLATFORM:=TEST
 PLATFORM_KEY:=test
 BOOTLOADER_TYPE:=none
@@ -63,6 +63,8 @@ include $(TMK_PATH)/protocol.mk
 include $(QUANTUM_PATH)/debounce/tests/rules.mk
 include $(QUANTUM_PATH)/encoder/tests/rules.mk
 include $(QUANTUM_PATH)/sequencer/tests/rules.mk
+include $(QUANTUM_PATH)/wear_leveling/tests/rules.mk
+include $(QUANTUM_PATH)/logging/print.mk
 include $(PLATFORM_PATH)/test/rules.mk
 ifneq ($(filter $(FULL_TESTS),$(TEST)),)
 include $(BUILDDEFS_PATH)/build_full_test.mk
@@ -70,7 +72,6 @@ endif
 
 $(TEST)_SRC += \
 	tests/test_common/main.c \
-	$(LIB_PATH)/printf/printf.c \
 	$(QUANTUM_PATH)/logging/print.c
 
 $(TEST_OBJ)/$(TEST)_SRC := $($(TEST)_SRC)
diff --git a/builddefs/common_features.mk b/builddefs/common_features.mk
index 6308c0bea3..e0b0caf42b 100644
--- a/builddefs/common_features.mk
+++ b/builddefs/common_features.mk
@@ -15,7 +15,6 @@
 
 QUANTUM_SRC += \
     $(QUANTUM_DIR)/quantum.c \
-    $(QUANTUM_DIR)/send_string.c \
     $(QUANTUM_DIR)/bitwise.c \
     $(QUANTUM_DIR)/led.c \
     $(QUANTUM_DIR)/action.c \
@@ -92,10 +91,29 @@ ifeq ($(MUSIC_ENABLE), yes)
     SRC += $(QUANTUM_DIR)/process_keycode/process_music.c
 endif
 
+VALID_STENO_PROTOCOL_TYPES := geminipr txbolt all
+STENO_PROTOCOL ?= all
 ifeq ($(strip $(STENO_ENABLE)), yes)
-    OPT_DEFS += -DSTENO_ENABLE
-    VIRTSER_ENABLE ?= yes
-    SRC += $(QUANTUM_DIR)/process_keycode/process_steno.c
+    ifeq ($(filter $(STENO_PROTOCOL),$(VALID_STENO_PROTOCOL_TYPES)),)
+        $(call CATASTROPHIC_ERROR,Invalid STENO_PROTOCOL,STENO_PROTOCOL="$(STENO_PROTOCOL)" is not a valid stenography protocol)
+    else
+        OPT_DEFS += -DSTENO_ENABLE
+        VIRTSER_ENABLE ?= yes
+
+        ifeq ($(strip $(STENO_PROTOCOL)), geminipr)
+            OPT_DEFS += -DSTENO_ENABLE_GEMINI
+        endif
+        ifeq ($(strip $(STENO_PROTOCOL)), txbolt)
+            OPT_DEFS += -DSTENO_ENABLE_BOLT
+        endif
+        ifeq ($(strip $(STENO_PROTOCOL)), all)
+            OPT_DEFS += -DSTENO_ENABLE_ALL
+            OPT_DEFS += -DSTENO_ENABLE_GEMINI
+            OPT_DEFS += -DSTENO_ENABLE_BOLT
+        endif
+
+        SRC += $(QUANTUM_DIR)/process_keycode/process_steno.c
+    endif
 endif
 
 ifeq ($(strip $(VIRTSER_ENABLE)), yes)
@@ -108,15 +126,16 @@ ifeq ($(strip $(MOUSEKEY_ENABLE)), yes)
     SRC += $(QUANTUM_DIR)/mousekey.c
 endif
 
-VALID_POINTING_DEVICE_DRIVER_TYPES := adns5050 adns9800 analog_joystick cirque_pinnacle_i2c cirque_pinnacle_spi pmw3360 pmw3389 pimoroni_trackball custom
+VALID_POINTING_DEVICE_DRIVER_TYPES := adns5050 adns9800 analog_joystick cirque_pinnacle_i2c cirque_pinnacle_spi paw3204 pmw3360 pmw3389 pimoroni_trackball custom
 ifeq ($(strip $(POINTING_DEVICE_ENABLE)), yes)
     ifeq ($(filter $(POINTING_DEVICE_DRIVER),$(VALID_POINTING_DEVICE_DRIVER_TYPES)),)
         $(call CATASTROPHIC_ERROR,Invalid POINTING_DEVICE_DRIVER,POINTING_DEVICE_DRIVER="$(POINTING_DEVICE_DRIVER)" is not a valid pointing device type)
     else
         OPT_DEFS += -DPOINTING_DEVICE_ENABLE
         MOUSE_ENABLE := yes
-        SRC += $(QUANTUM_DIR)/pointing_device.c
-        SRC += $(QUANTUM_DIR)/pointing_device_drivers.c
+        VPATH += $(QUANTUM_DIR)/pointing_device
+        SRC += $(QUANTUM_DIR)/pointing_device/pointing_device.c
+        SRC += $(QUANTUM_DIR)/pointing_device/pointing_device_drivers.c
         ifneq ($(strip $(POINTING_DEVICE_DRIVER)), custom)
             SRC += drivers/sensors/$(strip $(POINTING_DEVICE_DRIVER)).c
             OPT_DEFS += -DPOINTING_DEVICE_DRIVER_$(strip $(shell echo $(POINTING_DEVICE_DRIVER) | tr '[:lower:]' '[:upper:]'))
@@ -131,19 +150,21 @@ ifeq ($(strip $(POINTING_DEVICE_ENABLE)), yes)
         else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), cirque_pinnacle_i2c)
             OPT_DEFS += -DSTM32_I2C -DHAL_USE_I2C=TRUE
             SRC += drivers/sensors/cirque_pinnacle.c
+            SRC += drivers/sensors/cirque_pinnacle_gestures.c
+            SRC += $(QUANTUM_DIR)/pointing_device/pointing_device_gestures.c
             QUANTUM_LIB_SRC += i2c_master.c
         else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), cirque_pinnacle_spi)
             OPT_DEFS += -DSTM32_SPI -DHAL_USE_SPI=TRUE
             SRC += drivers/sensors/cirque_pinnacle.c
+            SRC += drivers/sensors/cirque_pinnacle_gestures.c
+            SRC += $(QUANTUM_DIR)/pointing_device/pointing_device_gestures.c
             QUANTUM_LIB_SRC += spi_master.c
         else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), pimoroni_trackball)
             OPT_DEFS += -DSTM32_SPI -DHAL_USE_I2C=TRUE
             QUANTUM_LIB_SRC += i2c_master.c
-        else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), pmw3360)
-            OPT_DEFS += -DSTM32_SPI -DHAL_USE_SPI=TRUE
-            QUANTUM_LIB_SRC += spi_master.c
-        else ifeq ($(strip $(POINTING_DEVICE_DRIVER)), pmw3389)
+        else ifneq ($(filter $(strip $(POINTING_DEVICE_DRIVER)),pmw3360 pmw3389),)
             OPT_DEFS += -DSTM32_SPI -DHAL_USE_SPI=TRUE
+            SRC += drivers/sensors/pmw33xx_common.c
             QUANTUM_LIB_SRC += spi_master.c
         endif
     endif
@@ -154,33 +175,36 @@ ifeq ($(strip $(QUANTUM_PAINTER_ENABLE)), yes)
     include $(QUANTUM_DIR)/painter/rules.mk
 endif
 
-VALID_EEPROM_DRIVER_TYPES := vendor custom transient i2c spi
+VALID_EEPROM_DRIVER_TYPES := vendor custom transient i2c spi wear_leveling
 EEPROM_DRIVER ?= vendor
 ifeq ($(filter $(EEPROM_DRIVER),$(VALID_EEPROM_DRIVER_TYPES)),)
   $(call CATASTROPHIC_ERROR,Invalid EEPROM_DRIVER,EEPROM_DRIVER="$(EEPROM_DRIVER)" is not a valid EEPROM driver)
 else
   OPT_DEFS += -DEEPROM_ENABLE
+  COMMON_VPATH += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/eeprom
+  COMMON_VPATH += $(DRIVER_PATH)/eeprom
+  COMMON_VPATH += $(PLATFORM_COMMON_DIR)
   ifeq ($(strip $(EEPROM_DRIVER)), custom)
     # Custom EEPROM implementation -- only needs to implement init/erase/read_block/write_block
     OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_CUSTOM
-    COMMON_VPATH += $(DRIVER_PATH)/eeprom
     SRC += eeprom_driver.c
+  else ifeq ($(strip $(EEPROM_DRIVER)), wear_leveling)
+    # Wear-leveling EEPROM implementation
+    OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_WEAR_LEVELING
+    SRC += eeprom_driver.c eeprom_wear_leveling.c
   else ifeq ($(strip $(EEPROM_DRIVER)), i2c)
     # External I2C EEPROM implementation
     OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_I2C
-    COMMON_VPATH += $(DRIVER_PATH)/eeprom
     QUANTUM_LIB_SRC += i2c_master.c
     SRC += eeprom_driver.c eeprom_i2c.c
   else ifeq ($(strip $(EEPROM_DRIVER)), spi)
     # External SPI EEPROM implementation
     OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_SPI
-    COMMON_VPATH += $(DRIVER_PATH)/eeprom
     QUANTUM_LIB_SRC += spi_master.c
     SRC += eeprom_driver.c eeprom_spi.c
   else ifeq ($(strip $(EEPROM_DRIVER)), transient)
     # Transient EEPROM implementation -- no data storage but provides runtime area for it
     OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_TRANSIENT
-    COMMON_VPATH += $(DRIVER_PATH)/eeprom
     SRC += eeprom_driver.c eeprom_transient.c
   else ifeq ($(strip $(EEPROM_DRIVER)), vendor)
     # Vendor-implemented EEPROM
@@ -191,23 +215,23 @@ else
       ifneq ($(filter STM32F3xx_% STM32F1xx_% %_STM32F401xC %_STM32F401xE %_STM32F405xG %_STM32F411xE %_STM32F072xB %_STM32F042x6 %_GD32VF103xB %_GD32VF103x8, $(MCU_SERIES)_$(MCU_LDSCRIPT)),)
         # Emulated EEPROM
         OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_STM32_FLASH_EMULATED
-        COMMON_VPATH += $(DRIVER_PATH)/eeprom
-        SRC += eeprom_driver.c
-        SRC += $(PLATFORM_COMMON_DIR)/eeprom_stm32.c
-        SRC += $(PLATFORM_COMMON_DIR)/flash_stm32.c
+        COMMON_VPATH += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/flash
+        COMMON_VPATH += $(DRIVER_PATH)/flash
+        SRC += eeprom_driver.c eeprom_stm32.c flash_stm32.c
       else ifneq ($(filter $(MCU_SERIES),STM32L0xx STM32L1xx),)
         # True EEPROM on STM32L0xx, L1xx
         OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_STM32_L0_L1
-        COMMON_VPATH += $(DRIVER_PATH)/eeprom
-        COMMON_VPATH += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/eeprom
-        SRC += eeprom_driver.c
-        SRC += eeprom_stm32_L0_L1.c
+        SRC += eeprom_driver.c eeprom_stm32_L0_L1.c
       else ifneq ($(filter $(MCU_SERIES),STM32L4xx),)
         OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_STM32_L4
         COMMON_VPATH += $(DRIVER_PATH)/eeprom
         SRC += eeprom_driver.c
         SRC += $(PLATFORM_COMMON_DIR)/eeprom_stm32_l4.c
         SRC += $(PLATFORM_COMMON_DIR)/flash_stm32.c
+      else ifneq ($(filter $(MCU_SERIES),RP2040),)
+        # Wear-leveling EEPROM implementation, backed by RP2040 flash
+        OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_WEAR_LEVELING
+        SRC += eeprom_driver.c eeprom_wear_leveling.c
       else ifneq ($(filter $(MCU_SERIES),KL2x K20x),)
         # Teensy EEPROM implementations
         OPT_DEFS += -DEEPROM_TEENSY
@@ -215,32 +239,64 @@ else
       else
         # Fall back to transient, i.e. non-persistent
         OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_TRANSIENT
-        COMMON_VPATH += $(DRIVER_PATH)/eeprom
         SRC += eeprom_driver.c eeprom_transient.c
       endif
     else ifeq ($(PLATFORM),ARM_ATSAM)
       # arm_atsam EEPROM
       OPT_DEFS += -DEEPROM_SAMD
-      SRC += $(PLATFORM_COMMON_DIR)/eeprom_samd.c
+      SRC += eeprom_samd.c
     else ifeq ($(PLATFORM),TEST)
       # Test harness "EEPROM"
       OPT_DEFS += -DEEPROM_TEST_HARNESS
-      SRC += $(PLATFORM_COMMON_DIR)/eeprom.c
+      SRC += eeprom.c
+    endif
+  endif
+endif
+
+VALID_WEAR_LEVELING_DRIVER_TYPES := custom embedded_flash spi_flash rp2040_flash legacy
+WEAR_LEVELING_DRIVER ?= none
+ifneq ($(strip $(WEAR_LEVELING_DRIVER)),none)
+  ifeq ($(filter $(WEAR_LEVELING_DRIVER),$(VALID_WEAR_LEVELING_DRIVER_TYPES)),)
+    $(call CATASTROPHIC_ERROR,Invalid WEAR_LEVELING_DRIVER,WEAR_LEVELING_DRIVER="$(WEAR_LEVELING_DRIVER)" is not a valid wear leveling driver)
+  else
+    FNV_ENABLE := yes
+    OPT_DEFS += -DWEAR_LEVELING_ENABLE
+    OPT_DEFS += -DWEAR_LEVELING_$(strip $(shell echo $(WEAR_LEVELING_DRIVER) | tr '[:lower:]' '[:upper:]'))
+    COMMON_VPATH += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/wear_leveling
+    COMMON_VPATH += $(DRIVER_PATH)/wear_leveling
+    COMMON_VPATH += $(QUANTUM_DIR)/wear_leveling
+    SRC += wear_leveling.c
+    ifeq ($(strip $(WEAR_LEVELING_DRIVER)), embedded_flash)
+      OPT_DEFS += -DHAL_USE_EFL
+      SRC += wear_leveling_efl.c
+      POST_CONFIG_H += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/wear_leveling/wear_leveling_efl_config.h
+    else ifeq ($(strip $(WEAR_LEVELING_DRIVER)), spi_flash)
+      FLASH_DRIVER := spi
+      SRC += wear_leveling_flash_spi.c
+      POST_CONFIG_H += $(DRIVER_PATH)/wear_leveling/wear_leveling_flash_spi_config.h
+    else ifeq ($(strip $(WEAR_LEVELING_DRIVER)), rp2040_flash)
+      SRC += wear_leveling_rp2040_flash.c
+      POST_CONFIG_H += $(DRIVER_PATH)/wear_leveling/wear_leveling_rp2040_flash_config.h
+    else ifeq ($(strip $(WEAR_LEVELING_DRIVER)), legacy)
+      COMMON_VPATH += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/flash
+      SRC += flash_stm32.c wear_leveling_legacy.c
+      POST_CONFIG_H += $(PLATFORM_PATH)/$(PLATFORM_KEY)/$(DRIVER_DIR)/wear_leveling/wear_leveling_legacy_config.h
     endif
   endif
 endif
 
 VALID_FLASH_DRIVER_TYPES := spi
-FLASH_DRIVER ?= no
-ifneq ($(strip $(FLASH_DRIVER)), no)
+FLASH_DRIVER ?= none
+ifneq ($(strip $(FLASH_DRIVER)), none)
     ifeq ($(filter $(FLASH_DRIVER),$(VALID_FLASH_DRIVER_TYPES)),)
-        $(error FLASH_DRIVER="$(FLASH_DRIVER)" is not a valid FLASH driver)
+        $(call CATASTROPHIC_ERROR,Invalid FLASH_DRIVER,FLASH_DRIVER="$(FLASH_DRIVER)" is not a valid flash driver)
     else
         OPT_DEFS += -DFLASH_ENABLE
-        ifeq ($(strip $(FLASH_DRIVER)), spi)
+        ifeq ($(strip $(FLASH_DRIVER)),spi)
             OPT_DEFS += -DFLASH_DRIVER -DFLASH_SPI
             COMMON_VPATH += $(DRIVER_PATH)/flash
             SRC += flash_spi.c
+            QUANTUM_LIB_SRC += spi_master.c
         endif
     endif
 endif
@@ -513,7 +569,7 @@ ifeq ($(strip $(BACKLIGHT_ENABLE)), yes)
     endif
 endif
 
-VALID_WS2812_DRIVER_TYPES := bitbang pwm spi i2c
+VALID_WS2812_DRIVER_TYPES := bitbang pwm spi i2c vendor
 
 WS2812_DRIVER ?= bitbang
 ifeq ($(strip $(WS2812_DRIVER_REQUIRED)), yes)
@@ -555,12 +611,6 @@ ifeq ($(strip $(LED_TABLES)), yes)
     SRC += $(QUANTUM_DIR)/led_tables.c
 endif
 
-ifeq ($(strip $(TERMINAL_ENABLE)), yes)
-    SRC += $(QUANTUM_DIR)/process_keycode/process_terminal.c
-    OPT_DEFS += -DTERMINAL_ENABLE
-    OPT_DEFS += -DUSER_PRINT
-endif
-
 ifeq ($(strip $(VIA_ENABLE)), yes)
     DYNAMIC_KEYMAP_ENABLE := yes
     RAW_ENABLE := yes
@@ -608,6 +658,14 @@ ifneq ($(strip $(DEBOUNCE_TYPE)), custom)
     QUANTUM_SRC += $(QUANTUM_DIR)/debounce/$(strip $(DEBOUNCE_TYPE)).c
 endif
 
+
+VALID_SERIAL_DRIVER_TYPES := bitbang usart vendor
+
+SERIAL_DRIVER ?= bitbang
+ifeq ($(filter $(SERIAL_DRIVER),$(VALID_SERIAL_DRIVER_TYPES)),)
+    $(call CATASTROPHIC_ERROR,Invalid SERIAL_DRIVER,SERIAL_DRIVER="$(SERIAL_DRIVER)" is not a valid SERIAL driver)
+endif
+
 ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
     POST_CONFIG_H += $(QUANTUM_DIR)/split_common/post_config.h
     OPT_DEFS += -DSPLIT_KEYBOARD
@@ -632,11 +690,11 @@ ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
             endif
         endif
 
-        SERIAL_DRIVER ?= bitbang
         OPT_DEFS += -DSERIAL_DRIVER_$(strip $(shell echo $(SERIAL_DRIVER) | tr '[:lower:]' '[:upper:]'))
         ifeq ($(strip $(SERIAL_DRIVER)), bitbang)
             QUANTUM_LIB_SRC += serial.c
         else
+            QUANTUM_LIB_SRC += serial_protocol.c
             QUANTUM_LIB_SRC += serial_$(strip $(SERIAL_DRIVER)).c
         endif
     endif
@@ -648,6 +706,12 @@ ifeq ($(strip $(CRC_ENABLE)), yes)
     SRC += crc.c
 endif
 
+ifeq ($(strip $(FNV_ENABLE)), yes)
+    OPT_DEFS += -DFNV_ENABLE
+    VPATH += $(LIB_PATH)/fnv
+    SRC += qmk_fnv_type_validation.c hash_32a.c hash_64a.c
+endif
+
 ifeq ($(strip $(HAPTIC_ENABLE)),yes)
     COMMON_VPATH += $(DRIVER_PATH)/haptic
 
@@ -724,6 +788,13 @@ ifeq ($(strip $(MAGIC_ENABLE)), yes)
     OPT_DEFS += -DMAGIC_KEYCODE_ENABLE
 endif
 
+SEND_STRING_ENABLE ?= yes
+ifeq ($(strip $(SEND_STRING_ENABLE)), yes)
+    OPT_DEFS += -DSEND_STRING_ENABLE
+    COMMON_VPATH += $(QUANTUM_DIR)/send_string
+    SRC += $(QUANTUM_DIR)/send_string/send_string.c
+endif
+
 ifeq ($(strip $(AUTO_SHIFT_ENABLE)), yes)
     SRC += $(QUANTUM_DIR)/process_keycode/process_auto_shift.c
     OPT_DEFS += -DAUTO_SHIFT_ENABLE
@@ -834,3 +905,11 @@ ifeq ($(strip $(BLUETOOTH_ENABLE)), yes)
         QUANTUM_LIB_SRC += uart.c
     endif
 endif
+
+ifeq ($(strip $(ENCODER_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/encoder.c
+    OPT_DEFS += -DENCODER_ENABLE
+    ifeq ($(strip $(ENCODER_MAP_ENABLE)), yes)
+        OPT_DEFS += -DENCODER_MAP_ENABLE
+    endif
+endif
diff --git a/builddefs/common_rules.mk b/builddefs/common_rules.mk
index d3acddc87b..c8816639f8 100644
--- a/builddefs/common_rules.mk
+++ b/builddefs/common_rules.mk
@@ -1,19 +1,5 @@
 # Hey Emacs, this is a -*- makefile -*-
 #----------------------------------------------------------------------------
-# WinAVR Makefile Template written by Eric B. Weddington, Jg Wunsch, et al.
-#
-# Released to the Public Domain
-#
-# Additional material for this makefile was written by:
-# Peter Fleury
-# Tim Henigan
-# Colin O'Flynn
-# Reiner Patommel
-# Markus Pfaff
-# Sander Pool
-# Frederik Rouleau
-# Carlos Lamas
-#
 
 # Enable vpath seraching for source files only
 # Without this, output files, could be read from the wrong .build directories
@@ -38,36 +24,15 @@ NO_LTO_OBJ := $(filter %.a,$(OBJ))
 
 MASTER_OUTPUT := $(firstword $(OUTPUTS))
 
-
-
 # Output format. (can be srec, ihex, binary)
 FORMAT = ihex
 
 # Optimization level, can be [0, 1, 2, 3, s].
-#     0 = turn off optimization. s = optimize for size.
-#     (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
 OPT ?= s
 
-# Compiler flag to set the C Standard level.
-#     c89   = "ANSI" C
-#     gnu89 = c89 plus GCC extensions
-#     c99   = ISO C99 standard (not yet fully implemented)
-#     gnu99 = c99 plus GCC extensions
-CSTANDARD = -std=gnu99
-
-
-# Place -D or -U options here for C sources
-#CDEFS +=
-
-
-# Place -D or -U options here for ASM sources
-#ADEFS +=
-
-
-# Place -D or -U options here for C++ sources
-#CXXDEFS += -D__STDC_LIMIT_MACROS
-#CXXDEFS += -D__STDC_CONSTANT_MACROS
-#CXXDEFS +=
+# Compiler flag to set the C and C++ language standard level
+CSTANDARD = -std=gnu11
+CXXSTANDARD = -std=gnu++14
 
 # Speed up recompilations by opt-in usage of ccache
 USE_CCACHE ?= no
@@ -75,12 +40,8 @@ ifneq ($(USE_CCACHE),no)
     CC_PREFIX ?= ccache
 endif
 
-#---------------- Compiler Options C ----------------
-#  -g*:          generate debugging information
-#  -O*:          optimization level
-#  -f...:        tuning, see GCC manual and avr-libc documentation
-#  -Wall...:     warning level
-#  -Wa,...:      tell GCC to pass this to the assembler.
+#---------------- C Compiler Options ----------------
+
 ifeq ($(strip $(LTO_ENABLE)), yes)
     ifeq ($(PLATFORM),ARM_ATSAM)
         $(info Enabling LTO on arm_atsam-targeting boards is known to have a high likelihood of failure.)
@@ -111,23 +72,14 @@ CFLAGS += -Wstrict-prototypes
 ifneq ($(strip $(ALLOW_WARNINGS)), yes)
     CFLAGS += -Werror
 endif
-#CFLAGS += -mshort-calls
-#CFLAGS += -fno-unit-at-a-time
-#CFLAGS += -Wundef
-#CFLAGS += -Wunreachable-code
-#CFLAGS += -Wsign-compare
 CFLAGS += $(CSTANDARD)
 
 # This fixes lots of keyboards linking errors but SHOULDN'T BE A FINAL SOLUTION
 # Fixing of multiple variable definitions must be made.
 CFLAGS += -fcommon
 
-#---------------- Compiler Options C++ ----------------
-#  -g*:          generate debugging information
-#  -O*:          optimization level
-#  -f...:        tuning, see GCC manual and avr-libc documentation
-#  -Wall...:     warning level
-#  -Wa,...:      tell GCC to pass this to the assembler.
+#---------------- C++ Compiler Options ----------------
+
 ifeq ($(strip $(DEBUG_ENABLE)),yes)
   CXXFLAGS += -g$(DEBUG)
 endif
@@ -141,57 +93,17 @@ CXXFLAGS += -Wundef
 ifneq ($(strip $(ALLOW_WARNINGS)), yes)
     CXXFLAGS += -Werror
 endif
-#CXXFLAGS += -mshort-calls
-#CXXFLAGS += -fno-unit-at-a-time
-#CXXFLAGS += -Wstrict-prototypes
-#CXXFLAGS += -Wunreachable-code
-#CXXFLAGS += -Wsign-compare
-#CXXFLAGS += $(CSTANDARD)
 
 #---------------- Assembler Options ----------------
+
 ASFLAGS += $(ADEFS)
 ifeq ($(VERBOSE_AS_CMD),yes)
 	ASFLAGS += -v
 endif
 
-#---------------- Library Options ----------------
-# Minimalistic printf version
-PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
-
-# Floating point printf version (requires MATH_LIB = -lm below)
-PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
-
-# If this is left blank, then it will use the Standard printf version.
-PRINTF_LIB =
-#PRINTF_LIB = $(PRINTF_LIB_MIN)
-#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
-
-
-# Minimalistic scanf version
-SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
-
-# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
-SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
-
-# If this is left blank, then it will use the Standard scanf version.
-SCANF_LIB =
-#SCANF_LIB = $(SCANF_LIB_MIN)
-#SCANF_LIB = $(SCANF_LIB_FLOAT)
-
-
-MATH_LIB = -lm
-CREATE_MAP ?= yes
-
-
 #---------------- Linker Options ----------------
-#  -Wl,...:     tell GCC to pass this to linker.
-#    -Map:      create map file
-#    --cref:    add cross reference to  map file
-#
-# Comennt out "--relax" option to avoid a error such:
-# 	(.vectors+0x30): relocation truncated to fit: R_AVR_13_PCREL against symbol `__vector_12'
-#
 
+CREATE_MAP ?= yes
 ifeq ($(CREATE_MAP),yes)
 	LDFLAGS += -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref
 endif
@@ -201,20 +113,11 @@ endif
 #LDFLAGS += -Wl,--relax
 LDFLAGS += $(EXTMEMOPTS)
 LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
-LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
-#LDFLAGS += -T linker_script.x
+LDFLAGS += -lm
 # You can give EXTRALDFLAGS at 'make' command line.
 LDFLAGS += $(EXTRALDFLAGS)
 
 #---------------- Assembler Listings ----------------
-#  -Wa,...:   tell GCC to pass this to the assembler.
-#  -adhlns:   create listing
-#  -gstabs:   have the assembler create line number information; note that
-#             for use in COFF files, additional information about filenames
-#             and function names needs to be present in the assembler source
-#             files -- see avr-libc docs [FIXME: not yet described there]
-#  -listing-cont-lines: Sets the maximum number of continuation lines of hex
-#       dump that will be displayed for a given single line of source input.
 
 ADHLNS_ENABLE ?= no
 ifeq ($(ADHLNS_ENABLE),yes)
@@ -468,6 +371,7 @@ show_path:
 dump_vars: ERROR_IF_EMPTY=""
 dump_vars: ERROR_IF_NONBOOL=""
 dump_vars: ERROR_IF_UNSET=""
+dump_vars: CATASTROPHIC_ERROR=""
 dump_vars:
 	@$(foreach V,$(sort $(.VARIABLES)),$(if $(filter-out environment% default automatic,$(origin $V)),$(info $V=$($V))))
 
diff --git a/builddefs/generic_features.mk b/builddefs/generic_features.mk
index c3f1ec0f72..f195e9fd75 100644
--- a/builddefs/generic_features.mk
+++ b/builddefs/generic_features.mk
@@ -25,8 +25,6 @@ GENERIC_FEATURES = \
     DIP_SWITCH \
     DYNAMIC_KEYMAP \
     DYNAMIC_MACRO \
-    ENCODER \
-    ENCODER_MAP \
     GRAVE_ESC \
     HAPTIC \
     KEY_LOCK \
diff --git a/builddefs/mcu_selection.mk b/builddefs/mcu_selection.mk
index d5fb731e08..0ea9630d59 100644
--- a/builddefs/mcu_selection.mk
+++ b/builddefs/mcu_selection.mk
@@ -87,6 +87,33 @@ ifneq ($(findstring MK20DX256, $(MCU)),)
   BOARD ?= PJRC_TEENSY_3_1
 endif
 
+ifneq ($(findstring MK64FX512, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = KINETIS
+  MCU_SERIES = K60x
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= MK64FX512
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= k60x
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= PJRC_TEENSY_3_5
+endif
+
 ifneq ($(findstring MK66FX1M0, $(MCU)),)
   # Cortex version
   MCU = cortex-m4
@@ -116,6 +143,41 @@ ifneq ($(findstring MK66FX1M0, $(MCU)),)
   BOARD ?= PJRC_TEENSY_3_6
 endif
 
+ifneq ($(findstring RP2040, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m0plus
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  CHIBIOS_PORT = ARMv6-M-RP2
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)
+  #   OR
+  #   <chibios[-contrib]>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = RP
+  MCU_SERIES = RP2040
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  STARTUPLD_CONTRIB = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/ld
+  MCU_LDSCRIPT ?= RP2040_FLASH_TIMECRIT
+  LDFLAGS += -L $(STARTUPLD_CONTRIB)
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= rp2040
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= GENERIC_PROMICRO_RP2040
+
+  # Default UF2 Bootloader settings
+  UF2_FAMILY ?= RP2040
+  FIRMWARE_FORMAT ?= uf2
+endif
+
 ifneq ($(findstring STM32F042, $(MCU)),)
   # Cortex version
   MCU = cortex-m0
@@ -286,7 +348,8 @@ ifneq ($(findstring STM32F401, $(MCU)),)
   #   or <keyboard_dir>/ld/
   ifeq ($(strip $(BOOTLOADER)), tinyuf2)
     MCU_LDSCRIPT ?= STM32F401xC_tinyuf2
-    FIRMWARE_FORMAT ?= uf2
+    EEPROM_DRIVER ?= wear_leveling
+    WEAR_LEVELING_DRIVER ?= legacy
   else
     MCU_LDSCRIPT ?= STM32F401xC
   endif
@@ -297,7 +360,7 @@ ifneq ($(findstring STM32F401, $(MCU)),)
 
   # Board: it should exist either in <chibios>/os/hal/boards/,
   # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= BLACKPILL_STM32_F401
+  BOARD ?= GENERIC_STM32_F401XC
 
   USE_FPU ?= yes
 
@@ -402,7 +465,8 @@ ifneq ($(findstring STM32F411, $(MCU)),)
   #   or <keyboard_dir>/ld/
   ifeq ($(strip $(BOOTLOADER)), tinyuf2)
     MCU_LDSCRIPT ?= STM32F411xE_tinyuf2
-    FIRMWARE_FORMAT ?= uf2
+    EEPROM_DRIVER ?= wear_leveling
+    WEAR_LEVELING_DRIVER ?= legacy
   else
     MCU_LDSCRIPT ?= STM32F411xE
   endif
@@ -413,7 +477,7 @@ ifneq ($(findstring STM32F411, $(MCU)),)
 
   # Board: it should exist either in <chibios>/os/hal/boards/,
   # <keyboard_dir>/boards/, or drivers/boards/
-  BOARD ?= BLACKPILL_STM32_F411
+  BOARD ?= GENERIC_STM32_F411XE
 
   USE_FPU ?= yes
 
diff --git a/builddefs/show_options.mk b/builddefs/show_options.mk
index f67d009191..98537e6da2 100644
--- a/builddefs/show_options.mk
+++ b/builddefs/show_options.mk
@@ -5,7 +5,6 @@ BUILD_OPTION_NAMES = \
   CONSOLE_ENABLE \
   COMMAND_ENABLE \
   NKRO_ENABLE \
-  TERMINAL_ENABLE \
   CUSTOM_MATRIX \
   DEBOUNCE_TYPE \
   SPLIT_KEYBOARD \
@@ -46,6 +45,7 @@ OTHER_OPTION_NAMES = \
   LEADER_ENABLE \
   PRINTING_ENABLE \
   STENO_ENABLE \
+  STENO_PROTOCOL \
   TAP_DANCE_ENABLE \
   VIRTSER_ENABLE \
   OLED_ENABLE \
diff --git a/builddefs/testlist.mk b/builddefs/testlist.mk
index b8d22bce80..8a30a44972 100644
--- a/builddefs/testlist.mk
+++ b/builddefs/testlist.mk
@@ -4,6 +4,7 @@ FULL_TESTS := $(notdir $(TEST_LIST))
 include $(QUANTUM_PATH)/debounce/tests/testlist.mk
 include $(QUANTUM_PATH)/encoder/tests/testlist.mk
 include $(QUANTUM_PATH)/sequencer/tests/testlist.mk
+include $(QUANTUM_PATH)/wear_leveling/tests/testlist.mk
 include $(PLATFORM_PATH)/test/testlist.mk
 
 define VALIDATE_TEST_LIST