Update repo name in README (#307)

* fix: italian keymap it quot is redefined

* fix: missing deprecated swedish key code

* Adds Moonlander to the list of supported keyboards

* Sorts list and adds EZ suffix to Planck in Readme

* Update Mouse Wheel config

Co-authored-by: Florian Didron <0x6664@hey.com>
Co-authored-by: Erez Zukerman <1092548+ezuk@users.noreply.github.com>

.clang-format

@@ -13,14 +13,14 @@ BinPackParameters: 'true'
 ColumnLimit: '1000'
 IndentCaseLabels: 'true'
 IndentPPDirectives: AfterHash
-IndentWidth: '2'
+IndentWidth: '4'
 MaxEmptyLinesToKeep: '1'
 PointerAlignment: Right
 SortIncludes: 'false'
 SpaceBeforeAssignmentOperators: 'true'
 SpaceBeforeParens: ControlStatements
 SpaceInEmptyParentheses: 'false'
-TabWidth: '2'
+TabWidth: '4'
 UseTab: Never
 
 ...

.clang_complete

@@ -1,24 +0,0 @@
-
--I.
--I./drivers
--I./drivers/avr
--I./keyboards/ergodox_ez
--I./keyboards/ergodox_ez/keymaps/vim
--I./lib
--I./lib/lufa
--I./quantum
--I./quantum/api
--I./quantum/audio
--I./quantum/keymap_extras
--I./quantum/process_keycode
--I./quantum/serial_link
--I./quantum/template
--I./quantum/tools
--I./quantum/visualizer
--I./tmk_core
--I./tmk_core/common
--I./tmk_core/common/debug.h
--I./tmk_core/protocol
--I./tmk_core/protocol/lufa
--I./util
--DQMK_KEYBOARD=\"$(KEYBOARD)\" -DQMK_KEYMAP=\"$(KEYMAP)\"

.gitignore

@@ -24,6 +24,7 @@ quantum/version.h
 .idea/
 CMakeLists.txt
 cmake-build-debug
+.clang_complete
 doxygen/
 .DS_Store
 /util/wsl_downloaded
@@ -42,7 +43,6 @@ doxygen/
 *.iml
 .browse.VC.db*
 *.stackdump
-util/Win_Check_Output.txt
 # Let these ones be user specific, since we have so many different configurations
 .vscode/c_cpp_properties.json
 .vscode/launch.json
@@ -57,8 +57,6 @@ util/Win_Check_Output.txt
 *.jpg
 *.gif
 
-# Do not ignore MiniDox left/right hand eeprom files
-
 # things travis sees
 secrets.tar
 id_rsa_*
@@ -66,3 +64,9 @@ id_rsa_*
 
 # python things
 __pycache__
+
+# prerequisites for updating ChibiOS
+/util/fmpp*
+
+# Allow to exist but don't include it in the repo
+user_song_list.h

.gitmodules

@@ -1,16 +1,24 @@
 [submodule "lib/chibios"]
 	path = lib/chibios
 	url = https://github.com/qmk/ChibiOS
+	branch = master
 [submodule "lib/chibios-contrib"]
 	path = lib/chibios-contrib
 	url = https://github.com/qmk/ChibiOS-Contrib
-	branch = k-type-fix
+	branch = master
 [submodule "lib/ugfx"]
 	path = lib/ugfx
 	url = https://github.com/qmk/uGFX
+	branch = master
 [submodule "lib/googletest"]
 	path = lib/googletest
-	url = https://github.com/google/googletest
+	url = https://github.com/qmk/googletest
 [submodule "lib/lufa"]
 	path = lib/lufa
 	url = https://github.com/zsa/lufa
+[submodule "lib/vusb"]
+	path = lib/vusb
+	url = https://github.com/qmk/v-usb
+[submodule "lib/printf"]
+	path = lib/printf
+	url = https://github.com/qmk/printf

Makefile

@@ -29,6 +29,9 @@ $(info QMK Firmware $(QMK_VERSION))
 endif
 endif
 
+# avoid 'Entering|Leaving directory' messages
+MAKEFLAGS += --no-print-directory
+
 ON_ERROR := error_occurred=1
 
 BREAK_ON_ERRORS = no
@@ -289,8 +292,8 @@ define PARSE_RULE
         $$(info |  QMK's make format recently changed to use folder locations and colons:)
         $$(info |     make project_folder:keymap[:target])
         $$(info |  Examples:)
-        $$(info |     make planck/rev4:default:dfu)
-        $$(info |     make planck:default)
+        $$(info |     make planck/ez:default:flash)
+        $$(info |     make planck/ez:default)
         $$(info |)
     endif
 endef
@@ -554,14 +557,16 @@ endef
 %:
 	# Check if we have the CMP tool installed
 	cmp $(ROOT_DIR)/Makefile $(ROOT_DIR)/Makefile >/dev/null 2>&1; if [ $$? -gt 0 ]; then printf "$(MSG_NO_CMP)"; exit 1; fi;
-	# Ensure that python3 is installed. This check can be removed after python is used in more places.
-	if ! python3 --version 1> /dev/null 2>&1; then printf "$(MSG_PYTHON_MISSING)"; fi
+	# Ensure that bin/qmk works. This will be a failing check after the next develop merge on 2020 Aug 29.
+	if ! bin/qmk hello 1> /dev/null 2>&1; then printf "$(MSG_PYTHON_MISSING)"; fi
 	# Check if the submodules are dirty, and display a warning if they are
 ifndef SKIP_GIT
-	if [ ! -e lib/chibios ]; then git submodule sync lib/chibios && git submodule update --depth 1 --init lib/chibios; fi
-	if [ ! -e lib/chibios-contrib ]; then git submodule sync lib/chibios-contrib && git submodule update --depth 1 --init lib/chibios-contrib; fi
-	if [ ! -e lib/ugfx ]; then git submodule sync lib/ugfx && git submodule update --depth 1 --init lib/ugfx; fi
-	if [ ! -e lib/lufa ]; then git submodule sync lib/lufa && git submodule update --depth 1 --init lib/lufa; fi
+	if [ ! -e lib/chibios ]; then git submodule sync lib/chibios && git submodule update --depth 50 --init lib/chibios; fi
+	if [ ! -e lib/chibios-contrib ]; then git submodule sync lib/chibios-contrib && git submodule update --depth 50 --init lib/chibios-contrib; fi
+	if [ ! -e lib/ugfx ]; then git submodule sync lib/ugfx && git submodule update --depth 50 --init lib/ugfx; fi
+	if [ ! -e lib/lufa ]; then git submodule sync lib/lufa && git submodule update --depth 50 --init lib/lufa; fi
+	if [ ! -e lib/vusb ]; then git submodule sync lib/vusb && git submodule update --depth 50 --init lib/vusb; fi
+	if [ ! -e lib/printf ]; then git submodule sync lib/printf && git submodule update --depth 50 --init lib/printf; fi
 	git submodule status --recursive 2>/dev/null | \
 	while IFS= read -r x; do \
 		case "$$x" in \
@@ -618,13 +623,19 @@ endif
 # Generate the version.h file
 ifndef SKIP_GIT
     GIT_VERSION := $(shell git describe --abbrev=6 --dirty --always --tags 2>/dev/null || date +"%Y-%m-%d-%H:%M:%S")
+    CHIBIOS_VERSION := $(shell cd lib/chibios && git describe --abbrev=6 --dirty --always --tags 2>/dev/null || date +"%Y-%m-%d-%H:%M:%S")
+    CHIBIOS_CONTRIB_VERSION := $(shell cd lib/chibios-contrib && git describe --abbrev=6 --dirty --always --tags 2>/dev/null || date +"%Y-%m-%d-%H:%M:%S")
 else
     GIT_VERSION := NA
+    CHIBIOS_VERSION := NA
+    CHIBIOS_CONTRIB_VERSION := NA
 endif
 ifndef SKIP_VERSION
 BUILD_DATE := $(shell date +"%Y-%m-%d-%H:%M:%S")
 $(shell echo '#define QMK_VERSION "$(GIT_VERSION)"' > $(ROOT_DIR)/quantum/version.h)
 $(shell echo '#define QMK_BUILDDATE "$(BUILD_DATE)"' >> $(ROOT_DIR)/quantum/version.h)
+$(shell echo '#define CHIBIOS_VERSION "$(CHIBIOS_VERSION)"' >> $(ROOT_DIR)/quantum/version.h)
+$(shell echo '#define CHIBIOS_CONTRIB_VERSION "$(CHIBIOS_CONTRIB_VERSION)"' >> $(ROOT_DIR)/quantum/version.h)
 else
 BUILD_DATE := NA
 endif

Vagrantfile

@@ -86,8 +86,8 @@ Vagrant.configure(2) do |config|
      make <keyboard>:default
 
   Examples:
-     make planck/rev4:default:dfu
-     make planck:default
+     make planck/ez:default:flash
+     make planck/ez:default
 
   EOT
 end

bin/qmk

@@ -2,46 +2,60 @@
 """CLI wrapper for running QMK commands.
 """
 import os
-import subprocess
 import sys
 from importlib.util import find_spec
-from time import strftime
+from pathlib import Path
 
 # Add the QMK python libs to our path
-script_dir = os.path.dirname(os.path.realpath(__file__))
-qmk_dir = os.path.abspath(os.path.join(script_dir, '..'))
-python_lib_dir = os.path.abspath(os.path.join(qmk_dir, 'lib', 'python'))
-sys.path.append(python_lib_dir)
+script_dir = Path(os.path.realpath(__file__)).parent
+qmk_dir = script_dir.parent
+python_lib_dir = Path(qmk_dir / 'lib' / 'python').resolve()
+sys.path.append(str(python_lib_dir))
 
+
+def _check_modules(requirements):
+    """ Check if the modules in the given requirements.txt are available.
+    """
+    with Path(qmk_dir / requirements).open() as fd:
+        for line in fd.readlines():
+            line = line.strip().replace('<', '=').replace('>', '=')
+
+            if len(line) == 0 or line[0] == '#' or line.startswith('-r'):
+                continue
+
+            if '#' in line:
+                line = line.split('#')[0]
+
+            module = dict()
+            module['name'] = module['import'] = line.split('=')[0] if '=' in line else line
+
+            # Not every module is importable by its own name.
+            if module['name'] == "pep8-naming":
+                module['import'] = "pep8ext_naming"
+
+            if not find_spec(module['import']):
+                print('Could not find module %s!' % module['name'])
+                print('Please run `python3 -m pip install -r %s` to install required python dependencies.' % (qmk_dir / requirements,))
+                if developer:
+                    print('You can also turn off developer mode: qmk config user.developer=None')
+                print()
+                exit(255)
+
+
+developer = False
 # Make sure our modules have been setup
-with open(os.path.join(qmk_dir, 'requirements.txt'), 'r') as fd:
-    for line in fd.readlines():
-        line = line.strip().replace('<', '=').replace('>', '=')
-
-        if line[0] == '#':
-            continue
-
-        if '#' in line:
-            line = line.split('#')[0]
-
-        module = line.split('=')[0] if '=' in line else line
-        if not find_spec(module):
-            print('Could not find module %s!', module)
-            print('Please run `pip3 install -r requirements.txt` to install the python dependencies.')
-            exit(255)
-
-# Figure out our version
-# TODO(skullydazed/anyone): Find a method that doesn't involve git. This is slow in docker and on windows.
-command = ['git', 'describe', '--abbrev=6', '--dirty', '--always', '--tags']
-result = subprocess.run(command, universal_newlines=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
-
-if result.returncode == 0:
-    os.environ['QMK_VERSION'] = result.stdout.strip()
-else:
-    os.environ['QMK_VERSION'] = 'nogit-' + strftime('%Y-%m-%d-%H:%M:%S') + '-dirty'
+_check_modules('requirements.txt')
 
 # Setup the CLI
-import milc
+import milc  # noqa
+
+# For developers additional modules are needed
+if milc.cli.config.user.developer:
+    # Do not run the check for 'config',
+    # so users can turn off developer mode
+    if len(sys.argv) == 1 or (len(sys.argv) > 1 and 'config' != sys.argv[1]):
+        developer = True
+        _check_modules('requirements-dev.txt')
 
 milc.EMOJI_LOGLEVELS['INFO'] = '{fg_blue}Ψ{style_reset_all}'
 
@@ -61,7 +75,7 @@ def main():
     os.chdir(qmk_dir)
 
     # Import the subcommands
-    import qmk.cli
+    import qmk.cli  # noqa
 
     # Execute
     return_code = milc.cli()

bootloader.mk

@@ -82,6 +82,13 @@ ifeq ($(strip $(BOOTLOADER)), USBasp)
     OPT_DEFS += -DBOOTLOADER_USBASP
     BOOTLOADER_SIZE = 4096
 endif
+ifeq ($(strip $(BOOTLOADER)), lufa-ms)
+    # DO NOT USE THIS BOOTLOADER IN NEW PROJECTS!
+    # It is extremely prone to bricking, and is only included to support existing boards.
+    OPT_DEFS += -DBOOTLOADER_MS
+    BOOTLOADER_SIZE = 6144
+    FIRMWARE_FORMAT = bin
+endif
 
 ifdef BOOTLOADER_SIZE
     OPT_DEFS += -DBOOTLOADER_SIZE=$(strip $(BOOTLOADER_SIZE))

build_json.mk

@@ -21,7 +21,11 @@ else ifneq ("$(wildcard $(MAIN_KEYMAP_PATH_1)/keymap.json)","")
     KEYMAP_PATH := $(MAIN_KEYMAP_PATH_1)
 endif
 
-# Generate the keymap.c
-ifneq ("$(KEYMAP_JSON)","")
-    _ = $(shell test -e $(KEYMAP_C) || bin/qmk json-keymap $(KEYMAP_JSON) -o $(KEYMAP_C))
+# Load the keymap-level rules.mk if exists
+ifneq ("$(wildcard $(KEYMAP_PATH))", "")
+    -include $(KEYMAP_PATH)/rules.mk
 endif
+
+# Generate the keymap.c
+$(KEYBOARD_OUTPUT)/src/keymap.c: $(KEYMAP_JSON)
+	bin/qmk json2c --quiet --output $(KEYMAP_C) $(KEYMAP_JSON)

build_keyboard.mk

@@ -231,44 +231,19 @@ endif
 # We can assume a ChibiOS target When MCU_FAMILY is defined since it's
 # not used for LUFA
 ifdef MCU_FAMILY
-    FIRMWARE_FORMAT?=bin
     PLATFORM=CHIBIOS
+    PLATFORM_KEY=chibios
+    FIRMWARE_FORMAT?=bin
 else ifdef ARM_ATSAM
     PLATFORM=ARM_ATSAM
+    PLATFORM_KEY=arm_atsam
     FIRMWARE_FORMAT=bin
 else
     PLATFORM=AVR
+    PLATFORM_KEY=avr
     FIRMWARE_FORMAT?=hex
 endif
 
-ifeq ($(PLATFORM),CHIBIOS)
-    include $(TMK_PATH)/chibios.mk
-    OPT_OS = chibios
-    ifneq ("$(wildcard $(KEYBOARD_PATH_5)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_5)/bootloader_defs.h
-     else ifneq ("$(wildcard $(KEYBOARD_PATH_5)/boards/$(BOARD)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_5)/boards/$(BOARD)/bootloader_defs.h
-    else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_4)/bootloader_defs.h
-     else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/boards/$(BOARD)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_4)/boards/$(BOARD)/bootloader_defs.h
-    else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_3)/bootloader_defs.h
-     else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/boards/$(BOARD)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_3)/boards/$(BOARD)/bootloader_defs.h
-    else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_2)/bootloader_defs.h
-     else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/boards/$(BOARD)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_2)/boards/$(BOARD)/bootloader_defs.h
-    else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_1)/bootloader_defs.h
-     else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/boards/$(BOARD)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(KEYBOARD_PATH_1)/boards/$(BOARD)/bootloader_defs.h
-    else ifneq ("$(wildcard $(TOP_DIR)/drivers/boards/$(BOARD)/bootloader_defs.h)","")
-        OPT_DEFS += -include $(TOP_DIR)/drivers/boards/$(BOARD)/bootloader_defs.h
-    endif
-endif
-
 # Find all of the config.h files and add them to our CONFIG_H define.
 CONFIG_H :=
 ifneq ("$(wildcard $(KEYBOARD_PATH_5)/config.h)","")
@@ -304,11 +279,6 @@ ifneq ("$(wildcard $(KEYBOARD_PATH_5)/post_config.h)","")
     POST_CONFIG_H += $(KEYBOARD_PATH_5)/post_config.h
 endif
 
-# Save the defines and includes here, so we don't include any keymap specific ones
-PROJECT_DEFS := $(OPT_DEFS)
-PROJECT_INC := $(VPATH) $(EXTRAINCDIRS) $(KEYBOARD_PATHS)
-PROJECT_CONFIG := $(CONFIG_H)
-
 # Userspace setup and definitions
 ifeq ("$(USER_NAME)","")
     USER_NAME := $(KEYMAP)
@@ -354,23 +324,17 @@ SRC += $(TMK_COMMON_SRC)
 OPT_DEFS += $(TMK_COMMON_DEFS)
 EXTRALDFLAGS += $(TMK_COMMON_LDFLAGS)
 
-ifeq ($(PLATFORM),AVR)
-ifeq ($(strip $(PROTOCOL)), VUSB)
-    include $(TMK_PATH)/protocol/vusb.mk
+include $(TMK_PATH)/$(PLATFORM_KEY).mk
+ifneq ($(strip $(PROTOCOL)),)
+    include $(TMK_PATH)/protocol/$(strip $(shell echo $(PROTOCOL) | tr '[:upper:]' '[:lower:]')).mk
 else
-    include $(TMK_PATH)/protocol/lufa.mk
-endif
-    include $(TMK_PATH)/avr.mk
+    include $(TMK_PATH)/protocol/$(PLATFORM_KEY).mk
 endif
 
-ifeq ($(PLATFORM),ARM_ATSAM)
-    include $(TMK_PATH)/arm_atsam.mk
-    include $(TMK_PATH)/protocol/arm_atsam.mk
-endif
-
-ifeq ($(PLATFORM),CHIBIOS)
-    include $(TMK_PATH)/protocol/chibios.mk
-endif
+# TODO: remove this bodge?
+PROJECT_DEFS := $(OPT_DEFS)
+PROJECT_INC := $(VPATH) $(EXTRAINCDIRS) $(KEYBOARD_PATHS)
+PROJECT_CONFIG := $(CONFIG_H)
 
 ifeq ($(strip $(VISUALIZER_ENABLE)), yes)
     VISUALIZER_DIR = $(QUANTUM_DIR)/visualizer

build_layout.mk

@@ -3,8 +3,14 @@ LAYOUTS_REPOS := $(patsubst %/,%,$(sort $(dir $(wildcard $(LAYOUTS_PATH)/*/))))
 
 define SEARCH_LAYOUTS_REPO
     LAYOUT_KEYMAP_PATH := $$(LAYOUTS_REPO)/$$(LAYOUT)/$$(KEYMAP)
+    LAYOUT_KEYMAP_JSON := $$(LAYOUT_KEYMAP_PATH)/keymap.json
     LAYOUT_KEYMAP_C := $$(LAYOUT_KEYMAP_PATH)/keymap.c
-    ifneq ("$$(wildcard $$(LAYOUT_KEYMAP_C))","")
+    ifneq ("$$(wildcard $$(LAYOUT_KEYMAP_JSON))","")
+        -include $$(LAYOUT_KEYMAP_PATH)/rules.mk
+        KEYMAP_C := $(KEYBOARD_OUTPUT)/src/keymap.c
+        KEYMAP_JSON := $$(LAYOUT_KEYMAP_JSON)
+        KEYMAP_PATH := $$(LAYOUT_KEYMAP_PATH)
+    else ifneq ("$$(wildcard $$(LAYOUT_KEYMAP_C))","")
         -include $$(LAYOUT_KEYMAP_PATH)/rules.mk
         KEYMAP_C := $$(LAYOUT_KEYMAP_C)
         KEYMAP_PATH := $$(LAYOUT_KEYMAP_PATH)
@@ -24,4 +30,7 @@ ifneq ($(FORCE_LAYOUT),)
     endif
 endif
 
-$(foreach LAYOUT,$(LAYOUTS),$(eval $(call SEARCH_LAYOUTS)))
+$(foreach LAYOUT,$(LAYOUTS),$(eval $(call SEARCH_LAYOUTS)))
+
+# Use rule from build_json.mk, but update prerequisite in case KEYMAP_JSON was updated
+$(KEYBOARD_OUTPUT)/src/keymap.c: $(KEYMAP_JSON)

build_test.mk

@@ -41,6 +41,7 @@ all: elf
 
 VPATH += $(COMMON_VPATH)
 PLATFORM:=TEST
+PLATFORM_KEY:=test
 
 ifneq ($(filter $(FULL_TESTS),$(TEST)),)
 include tests/$(TEST)/rules.mk

common_features.mk

@@ -13,55 +13,45 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-SERIAL_DIR := $(QUANTUM_DIR)/serial_link
 SERIAL_PATH := $(QUANTUM_PATH)/serial_link
-SERIAL_SRC := $(wildcard $(SERIAL_PATH)/protocol/*.c)
-SERIAL_SRC += $(wildcard $(SERIAL_PATH)/system/*.c)
-SERIAL_DEFS += -DSERIAL_LINK_ENABLE
-COMMON_VPATH += $(SERIAL_PATH)
+
+QUANTUM_SRC += \
+    $(QUANTUM_DIR)/quantum.c \
+    $(QUANTUM_DIR)/keymap_common.c \
+    $(QUANTUM_DIR)/keycode_config.c
 
 ifeq ($(strip $(API_SYSEX_ENABLE)), yes)
     OPT_DEFS += -DAPI_SYSEX_ENABLE
-    SRC += $(QUANTUM_DIR)/api/api_sysex.c
     OPT_DEFS += -DAPI_ENABLE
-    SRC += $(QUANTUM_DIR)/api.c
     MIDI_ENABLE=yes
+    SRC += $(QUANTUM_DIR)/api/api_sysex.c
+    SRC += $(QUANTUM_DIR)/api.c
 endif
 
-MUSIC_ENABLE := 0
-
 ifeq ($(strip $(AUDIO_ENABLE)), yes)
     OPT_DEFS += -DAUDIO_ENABLE
-    MUSIC_ENABLE := 1
+    MUSIC_ENABLE = yes
     SRC += $(QUANTUM_DIR)/process_keycode/process_audio.c
     SRC += $(QUANTUM_DIR)/process_keycode/process_clicky.c
-    ifeq ($(PLATFORM),AVR)
-        SRC += $(QUANTUM_DIR)/audio/audio.c
-    else
-        SRC += $(QUANTUM_DIR)/audio/audio_arm.c
-    endif
+    SRC += $(QUANTUM_DIR)/audio/audio_$(PLATFORM_KEY).c
     SRC += $(QUANTUM_DIR)/audio/voices.c
     SRC += $(QUANTUM_DIR)/audio/luts.c
 endif
 
 ifeq ($(strip $(MIDI_ENABLE)), yes)
     OPT_DEFS += -DMIDI_ENABLE
-    MUSIC_ENABLE := 1
+    MUSIC_ENABLE = yes
     SRC += $(QUANTUM_DIR)/process_keycode/process_midi.c
 endif
 
-ifeq ($(MUSIC_ENABLE), 1)
+MUSIC_ENABLE ?= no
+ifeq ($(MUSIC_ENABLE), yes)
     SRC += $(QUANTUM_DIR)/process_keycode/process_music.c
 endif
 
-ifeq ($(strip $(COMBO_ENABLE)), yes)
-    OPT_DEFS += -DCOMBO_ENABLE
-    SRC += $(QUANTUM_DIR)/process_keycode/process_combo.c
-endif
-
 ifeq ($(strip $(STENO_ENABLE)), yes)
     OPT_DEFS += -DSTENO_ENABLE
-    VIRTSER_ENABLE := yes
+    VIRTSER_ENABLE ?= yes
     SRC += $(QUANTUM_DIR)/process_keycode/process_steno.c
 endif
 
@@ -80,26 +70,64 @@ ifeq ($(strip $(POINTING_DEVICE_ENABLE)), yes)
     SRC += $(QUANTUM_DIR)/pointing_device.c
 endif
 
-ifeq ($(strip $(UCIS_ENABLE)), yes)
-    OPT_DEFS += -DUCIS_ENABLE
-    UNICODE_COMMON = yes
-    SRC += $(QUANTUM_DIR)/process_keycode/process_ucis.c
-endif
-
-ifeq ($(strip $(UNICODEMAP_ENABLE)), yes)
-    OPT_DEFS += -DUNICODEMAP_ENABLE
-    UNICODE_COMMON = yes
-    SRC += $(QUANTUM_DIR)/process_keycode/process_unicodemap.c
-endif
-
-ifeq ($(strip $(UNICODE_ENABLE)), yes)
-    OPT_DEFS += -DUNICODE_ENABLE
-    UNICODE_COMMON = yes
-    SRC += $(QUANTUM_DIR)/process_keycode/process_unicode.c
-endif
-
-ifeq ($(strip $(UNICODE_COMMON)), yes)
-    SRC += $(QUANTUM_DIR)/process_keycode/process_unicode_common.c
+VALID_EEPROM_DRIVER_TYPES := vendor custom transient i2c spi
+EEPROM_DRIVER ?= vendor
+ifeq ($(filter $(EEPROM_DRIVER),$(VALID_EEPROM_DRIVER_TYPES)),)
+  $(error EEPROM_DRIVER="$(EEPROM_DRIVER)" is not a valid EEPROM driver)
+else
+  OPT_DEFS += -DEEPROM_ENABLE
+  ifeq ($(strip $(EEPROM_DRIVER)), custom)
+    OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_CUSTOM
+    COMMON_VPATH += $(DRIVER_PATH)/eeprom
+    SRC += eeprom_driver.c
+  else ifeq ($(strip $(EEPROM_DRIVER)), i2c)
+    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)
+    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)
+    OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_TRANSIENT
+    COMMON_VPATH += $(DRIVER_PATH)/eeprom
+    SRC += eeprom_driver.c eeprom_transient.c
+  else ifeq ($(strip $(EEPROM_DRIVER)), vendor)
+    OPT_DEFS += -DEEPROM_VENDOR
+    ifeq ($(PLATFORM),AVR)
+      # Automatically provided by avr-libc, nothing required
+    else ifeq ($(PLATFORM),CHIBIOS)
+      ifeq ($(MCU_SERIES), STM32F3xx)
+        SRC += $(PLATFORM_COMMON_DIR)/eeprom_stm32.c
+        SRC += $(PLATFORM_COMMON_DIR)/flash_stm32.c
+        OPT_DEFS += -DEEPROM_EMU_STM32F303xC
+        OPT_DEFS += -DSTM32_EEPROM_ENABLE
+      else ifeq ($(MCU_SERIES), STM32F1xx)
+        SRC += $(PLATFORM_COMMON_DIR)/eeprom_stm32.c
+        SRC += $(PLATFORM_COMMON_DIR)/flash_stm32.c
+        OPT_DEFS += -DEEPROM_EMU_STM32F103xB
+        OPT_DEFS += -DSTM32_EEPROM_ENABLE
+      else ifeq ($(MCU_SERIES)_$(MCU_LDSCRIPT), STM32F0xx_STM32F072xB)
+        SRC += $(PLATFORM_COMMON_DIR)/eeprom_stm32.c
+        SRC += $(PLATFORM_COMMON_DIR)/flash_stm32.c
+        OPT_DEFS += -DEEPROM_EMU_STM32F072xB
+        OPT_DEFS += -DSTM32_EEPROM_ENABLE
+      else ifneq ($(filter $(MCU_SERIES),STM32L0xx STM32L1xx),)
+        OPT_DEFS += -DEEPROM_DRIVER
+        COMMON_VPATH += $(DRIVER_PATH)/eeprom
+        SRC += eeprom_driver.c eeprom_stm32_L0_L1.c
+      else
+        # This will effectively work the same as "transient" if not supported by the chip
+        SRC += $(PLATFORM_COMMON_DIR)/eeprom_teensy.c
+      endif
+    else ifeq ($(PLATFORM),ARM_ATSAM)
+      SRC += $(PLATFORM_COMMON_DIR)/eeprom.c
+    else ifeq ($(PLATFORM),TEST)
+      SRC += $(PLATFORM_COMMON_DIR)/eeprom.c
+    endif
+  endif
 endif
 
 ifeq ($(strip $(RGBLIGHT_ENABLE)), yes)
@@ -107,23 +135,25 @@ ifeq ($(strip $(RGBLIGHT_ENABLE)), yes)
     OPT_DEFS += -DRGBLIGHT_ENABLE
     SRC += $(QUANTUM_DIR)/color.c
     SRC += $(QUANTUM_DIR)/rgblight.c
-    CIE1931_CURVE = yes
-    LED_BREATHING_TABLE = yes
+    CIE1931_CURVE := yes
+    RGB_KEYCODES_ENABLE := yes
     ifeq ($(strip $(RGBLIGHT_CUSTOM_DRIVER)), yes)
         OPT_DEFS += -DRGBLIGHT_CUSTOM_DRIVER
     else
-        WS2812_DRIVER_REQUIRED = yes
+        WS2812_DRIVER_REQUIRED := yes
     endif
 endif
 
-VALID_MATRIX_TYPES := yes IS31FL3731 IS31FL3733 IS31FL3737 WS2812 custom
+VALID_MATRIX_TYPES := yes IS31FL3731 IS31FL3733 IS31FL3737 IS31FL3741 WS2812 custom
 
 LED_MATRIX_ENABLE ?= no
 ifneq ($(strip $(LED_MATRIX_ENABLE)), no)
     ifeq ($(filter $(LED_MATRIX_ENABLE),$(VALID_MATRIX_TYPES)),)
         $(error LED_MATRIX_ENABLE="$(LED_MATRIX_ENABLE)" is not a valid matrix type)
     else
-        OPT_DEFS += -DLED_MATRIX_ENABLE -DBACKLIGHT_ENABLE -DBACKLIGHT_CUSTOM_DRIVER
+        BACKLIGHT_ENABLE = yes
+        BACKLIGHT_DRIVER = custom
+        OPT_DEFS += -DLED_MATRIX_ENABLE
         SRC += $(QUANTUM_DIR)/led_matrix.c
         SRC += $(QUANTUM_DIR)/led_matrix_drivers.c
     endif
@@ -146,11 +176,12 @@ endif
     SRC += $(QUANTUM_DIR)/color.c
     SRC += $(QUANTUM_DIR)/rgb_matrix.c
     SRC += $(QUANTUM_DIR)/rgb_matrix_drivers.c
-    CIE1931_CURVE = yes
+    CIE1931_CURVE := yes
+    RGB_KEYCODES_ENABLE := yes
 endif
 
 ifeq ($(strip $(RGB_MATRIX_ENABLE)), yes)
-	RGB_MATRIX_ENABLE = IS31FL3731
+	RGB_MATRIX_ENABLE := IS31FL3731
 endif
 
 ifeq ($(strip $(RGB_MATRIX_ENABLE)), IS31FL3731)
@@ -174,9 +205,16 @@ ifeq ($(strip $(RGB_MATRIX_ENABLE)), IS31FL3737)
     QUANTUM_LIB_SRC += i2c_master.c
 endif
 
+ifeq ($(strip $(RGB_MATRIX_ENABLE)), IS31FL3741)
+    OPT_DEFS += -DIS31FL3741 -DSTM32_I2C -DHAL_USE_I2C=TRUE
+    COMMON_VPATH += $(DRIVER_PATH)/issi
+    SRC += is31fl3741.c
+    QUANTUM_LIB_SRC += i2c_master.c
+endif
+
 ifeq ($(strip $(RGB_MATRIX_ENABLE)), WS2812)
     OPT_DEFS += -DWS2812
-    WS2812_DRIVER_REQUIRED = yes
+    WS2812_DRIVER_REQUIRED := yes
 endif
 
 ifeq ($(strip $(RGB_MATRIX_CUSTOM_KB)), yes)
@@ -187,14 +225,8 @@ ifeq ($(strip $(RGB_MATRIX_CUSTOM_USER)), yes)
     OPT_DEFS += -DRGB_MATRIX_CUSTOM_USER
 endif
 
-ifeq ($(strip $(TAP_DANCE_ENABLE)), yes)
-    OPT_DEFS += -DTAP_DANCE_ENABLE
-    SRC += $(QUANTUM_DIR)/process_keycode/process_tap_dance.c
-endif
-
-ifeq ($(strip $(KEY_LOCK_ENABLE)), yes)
-    OPT_DEFS += -DKEY_LOCK_ENABLE
-    SRC += $(QUANTUM_DIR)/process_keycode/process_key_lock.c
+ifeq ($(strip $(RGB_KEYCODES_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_rgb.c
 endif
 
 ifeq ($(strip $(PRINTING_ENABLE)), yes)
@@ -203,15 +235,12 @@ ifeq ($(strip $(PRINTING_ENABLE)), yes)
     SRC += $(TMK_DIR)/protocol/serial_uart.c
 endif
 
-ifeq ($(strip $(AUTO_SHIFT_ENABLE)), yes)
-    OPT_DEFS += -DAUTO_SHIFT_ENABLE
-    SRC += $(QUANTUM_DIR)/process_keycode/process_auto_shift.c
-    ifeq ($(strip $(AUTO_SHIFT_MODIFIERS)), yes)
-        OPT_DEFS += -DAUTO_SHIFT_MODIFIERS
-    endif
-endif
-
 ifeq ($(strip $(SERIAL_LINK_ENABLE)), yes)
+    SERIAL_SRC := $(wildcard $(SERIAL_PATH)/protocol/*.c)
+    SERIAL_SRC += $(wildcard $(SERIAL_PATH)/system/*.c)
+    SERIAL_DEFS += -DSERIAL_LINK_ENABLE
+    COMMON_VPATH += $(SERIAL_PATH)
+
     SRC += $(patsubst $(QUANTUM_PATH)/%,%,$(SERIAL_SRC))
     OPT_DEFS += $(SERIAL_DEFS)
     VAPTH += $(SERIAL_PATH)
@@ -226,21 +255,41 @@ endif
 endif
 
 ifeq ($(strip $(LCD_ENABLE)), yes)
-    CIE1931_CURVE = yes
+    CIE1931_CURVE := yes
 endif
 
+# backward compat
+ifeq ($(strip $(BACKLIGHT_CUSTOM_DRIVER)), yes)
+    BACKLIGHT_DRIVER := custom
+endif
+
+VALID_BACKLIGHT_TYPES := pwm software custom
+
+BACKLIGHT_ENABLE ?= no
+BACKLIGHT_DRIVER ?= pwm
 ifeq ($(strip $(BACKLIGHT_ENABLE)), yes)
-    ifeq ($(strip $(VISUALIZER_ENABLE)), yes)
-        CIE1931_CURVE = yes
+    ifeq ($(filter $(BACKLIGHT_DRIVER),$(VALID_BACKLIGHT_TYPES)),)
+        $(error BACKLIGHT_DRIVER="$(BACKLIGHT_DRIVER)" is not a valid backlight type)
     endif
 
+    ifeq ($(strip $(VISUALIZER_ENABLE)), yes)
+        CIE1931_CURVE := yes
+    endif
 
     COMMON_VPATH += $(QUANTUM_DIR)/backlight
     SRC += $(QUANTUM_DIR)/backlight/backlight.c
+    SRC += $(QUANTUM_DIR)/process_keycode/process_backlight.c
     OPT_DEFS += -DBACKLIGHT_ENABLE
 
-    ifeq ($(strip $(BACKLIGHT_ENABLE)), custom)
+    ifeq ($(strip $(BACKLIGHT_DRIVER)), custom)
         OPT_DEFS += -DBACKLIGHT_CUSTOM_DRIVER
+    else
+        SRC += $(QUANTUM_DIR)/backlight/backlight_driver_common.c
+        ifeq ($(strip $(BACKLIGHT_DRIVER)), pwm)
+            SRC += $(QUANTUM_DIR)/backlight/backlight_$(PLATFORM_KEY).c
+        else
+            SRC += $(QUANTUM_DIR)/backlight/backlight_$(strip $(BACKLIGHT_DRIVER)).c
+        endif
     endif
 endif
 
@@ -252,6 +301,8 @@ ifeq ($(strip $(WS2812_DRIVER_REQUIRED)), yes)
         $(error WS2812_DRIVER="$(WS2812_DRIVER)" is not a valid WS2812 driver)
     endif
 
+    OPT_DEFS += -DWS2812_DRIVER_$(strip $(shell echo $(WS2812_DRIVER) | tr '[:lower:]' '[:upper:]'))
+
     ifeq ($(strip $(WS2812_DRIVER)), bitbang)
         SRC += ws2812.c
     else
@@ -264,14 +315,13 @@ ifeq ($(strip $(WS2812_DRIVER_REQUIRED)), yes)
     endif
 endif
 
-ifeq ($(strip $(CIE1931_CURVE)), yes)
-    OPT_DEFS += -DUSE_CIE1931_CURVE
-    LED_TABLES = yes
+ifeq ($(strip $(VISUALIZER_ENABLE)), yes)
+    CIE1931_CURVE := yes
 endif
 
-ifeq ($(strip $(LED_BREATHING_TABLE)), yes)
-    OPT_DEFS += -DUSE_LED_BREATHING_TABLE
-    LED_TABLES = yes
+ifeq ($(strip $(CIE1931_CURVE)), yes)
+    OPT_DEFS += -DUSE_CIE1931_CURVE
+    LED_TABLES := yes
 endif
 
 ifeq ($(strip $(LED_TABLES)), yes)
@@ -288,8 +338,9 @@ ifeq ($(strip $(USB_HID_ENABLE)), yes)
     include $(TMK_DIR)/protocol/usb_hid.mk
 endif
 
-ifeq ($(strip $(WEBUSB_ENABLE)), yes)
-    SRC += $(TMK_DIR)/common/webusb.c
+ifeq ($(strip $(WPM_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/wpm.c
+    OPT_DEFS += -DWPM_ENABLE
 endif
 
 ifeq ($(strip $(ENCODER_ENABLE)), yes)
@@ -297,56 +348,55 @@ ifeq ($(strip $(ENCODER_ENABLE)), yes)
     OPT_DEFS += -DENCODER_ENABLE
 endif
 
-ifeq ($(strip $(HAPTIC_ENABLE)), DRV2605L)
-    COMMON_VPATH += $(DRIVER_PATH)/haptic
-    SRC += haptic.c
-    SRC += DRV2605L.c
-    QUANTUM_LIB_SRC += i2c_master.c
-    OPT_DEFS += -DHAPTIC_ENABLE
-    OPT_DEFS += -DDRV2605L
-endif
-
-ifeq ($(strip $(HAPTIC_ENABLE)), SOLENOID)
-    COMMON_VPATH += $(DRIVER_PATH)/haptic
-    SRC += haptic.c
-    SRC += solenoid.c
-    OPT_DEFS += -DHAPTIC_ENABLE
-    OPT_DEFS += -DSOLENOID_ENABLE
-endif
-
-ifeq ($(strip $(HD44780_ENABLE)), yes)
-    SRC += drivers/avr/hd44780.c
-    OPT_DEFS += -DHD44780_ENABLE
-endif
-
 ifeq ($(strip $(VELOCIKEY_ENABLE)), yes)
     OPT_DEFS += -DVELOCIKEY_ENABLE
     SRC += $(QUANTUM_DIR)/velocikey.c
 endif
 
+ifeq ($(strip $(ORYX_ENABLE)), yes)
+    WEBUSB_ENABLE := yes
+    SRC += $(QUANTUM_DIR)/oryx.c
+    OPT_DEFS += -DORYX_ENABLE
+endif
+
+ifeq ($(strip $(VIA_ENABLE)), yes)
+    DYNAMIC_KEYMAP_ENABLE := yes
+    RAW_ENABLE := yes
+    BOOTMAGIC_ENABLE := lite
+    SRC += $(QUANTUM_DIR)/via.c
+    OPT_DEFS += -DVIA_ENABLE
+endif
+
 ifeq ($(strip $(DYNAMIC_KEYMAP_ENABLE)), yes)
     OPT_DEFS += -DDYNAMIC_KEYMAP_ENABLE
     SRC += $(QUANTUM_DIR)/dynamic_keymap.c
 endif
 
-ifeq ($(strip $(LEADER_ENABLE)), yes)
-  SRC += $(QUANTUM_DIR)/process_keycode/process_leader.c
-  OPT_DEFS += -DLEADER_ENABLE
+ifeq ($(strip $(DIP_SWITCH_ENABLE)), yes)
+    OPT_DEFS += -DDIP_SWITCH_ENABLE
+    SRC += $(QUANTUM_DIR)/dip_switch.c
 endif
 
-include $(DRIVER_PATH)/qwiic/qwiic.mk
+VALID_CUSTOM_MATRIX_TYPES:= yes lite no
 
-QUANTUM_SRC:= \
-    $(QUANTUM_DIR)/quantum.c \
-    $(QUANTUM_DIR)/keymap_common.c \
-    $(QUANTUM_DIR)/keycode_config.c
+CUSTOM_MATRIX ?= no
 
-# Include the standard or split matrix code if needed
 ifneq ($(strip $(CUSTOM_MATRIX)), yes)
-    ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
-        QUANTUM_SRC += $(QUANTUM_DIR)/split_common/matrix.c
-    else
-        QUANTUM_SRC += $(QUANTUM_DIR)/matrix.c
+    ifeq ($(filter $(CUSTOM_MATRIX),$(VALID_CUSTOM_MATRIX_TYPES)),)
+        $(error CUSTOM_MATRIX="$(CUSTOM_MATRIX)" is not a valid custom matrix type)
+    endif
+
+    # Include common stuff for all non custom matrix users
+    QUANTUM_SRC += $(QUANTUM_DIR)/matrix_common.c
+
+    # if 'lite' then skip the actual matrix implementation
+    ifneq ($(strip $(CUSTOM_MATRIX)), lite)
+        # Include the standard or split matrix code if needed
+        ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
+            QUANTUM_SRC += $(QUANTUM_DIR)/split_common/matrix.c
+        else
+            QUANTUM_SRC += $(QUANTUM_DIR)/matrix.c
+        endif
     endif
 endif
 
@@ -369,13 +419,44 @@ ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
         QUANTUM_SRC += $(QUANTUM_DIR)/split_common/transport.c
         # Functions added via QUANTUM_LIB_SRC are only included in the final binary if they're called.
         # Unused functions are pruned away, which is why we can add multiple drivers here without bloat.
-        QUANTUM_LIB_SRC += $(QUANTUM_DIR)/split_common/serial.c \
-                           i2c_master.c \
-                           i2c_slave.c
+        ifeq ($(PLATFORM),AVR)
+            QUANTUM_LIB_SRC += i2c_master.c \
+                               i2c_slave.c
+        endif
+
+        SERIAL_DRIVER ?= bitbang
+        ifeq ($(strip $(SERIAL_DRIVER)), bitbang)
+            QUANTUM_LIB_SRC += serial.c
+        else
+            QUANTUM_LIB_SRC += serial_$(strip $(SERIAL_DRIVER)).c
+        endif
     endif
     COMMON_VPATH += $(QUANTUM_PATH)/split_common
 endif
 
+HAPTIC_ENABLE ?= no
+ifneq ($(strip $(HAPTIC_ENABLE)),no)
+    COMMON_VPATH += $(DRIVER_PATH)/haptic
+    SRC += haptic.c
+    OPT_DEFS += -DHAPTIC_ENABLE
+endif
+
+ifneq ($(filter DRV2605L, $(HAPTIC_ENABLE)), )
+    SRC += DRV2605L.c
+    QUANTUM_LIB_SRC += i2c_master.c
+    OPT_DEFS += -DDRV2605L
+endif
+
+ifneq ($(filter SOLENOID, $(HAPTIC_ENABLE)), )
+    SRC += solenoid.c
+    OPT_DEFS += -DSOLENOID_ENABLE
+endif
+
+ifeq ($(strip $(HD44780_ENABLE)), yes)
+    SRC += drivers/avr/hd44780.c
+    OPT_DEFS += -DHD44780_ENABLE
+endif
+
 ifeq ($(strip $(OLED_DRIVER_ENABLE)), yes)
     OPT_DEFS += -DOLED_DRIVER_ENABLE
     COMMON_VPATH += $(DRIVER_PATH)/oled
@@ -383,14 +464,133 @@ ifeq ($(strip $(OLED_DRIVER_ENABLE)), yes)
     SRC += oled_driver.c
 endif
 
-SPACE_CADET_ENABLE ?= yes
-ifeq ($(strip $(SPACE_CADET_ENABLE)), yes)
-  SRC += $(QUANTUM_DIR)/process_keycode/process_space_cadet.c
-  OPT_DEFS += -DSPACE_CADET_ENABLE
+include $(DRIVER_PATH)/qwiic/qwiic.mk
+
+ifeq ($(strip $(UCIS_ENABLE)), yes)
+    OPT_DEFS += -DUCIS_ENABLE
+    UNICODE_COMMON := yes
+    SRC += $(QUANTUM_DIR)/process_keycode/process_ucis.c
 endif
 
+ifeq ($(strip $(UNICODEMAP_ENABLE)), yes)
+    OPT_DEFS += -DUNICODEMAP_ENABLE
+    UNICODE_COMMON := yes
+    SRC += $(QUANTUM_DIR)/process_keycode/process_unicodemap.c
+endif
+
+ifeq ($(strip $(UNICODE_ENABLE)), yes)
+    OPT_DEFS += -DUNICODE_ENABLE
+    UNICODE_COMMON := yes
+    SRC += $(QUANTUM_DIR)/process_keycode/process_unicode.c
+endif
+
+ifeq ($(strip $(UNICODE_COMMON)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_unicode_common.c
+endif
+
+SPACE_CADET_ENABLE ?= yes
+ifeq ($(strip $(SPACE_CADET_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_space_cadet.c
+    OPT_DEFS += -DSPACE_CADET_ENABLE
+endif
+
+MAGIC_ENABLE ?= yes
+ifeq ($(strip $(MAGIC_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_magic.c
+    OPT_DEFS += -DMAGIC_KEYCODE_ENABLE
+endif
 
 ifeq ($(strip $(DIP_SWITCH_ENABLE)), yes)
   SRC += $(QUANTUM_DIR)/dip_switch.c
   OPT_DEFS += -DDIP_SWITCH_ENABLE
 endif
+
+VALID_EEPROM_DRIVER_TYPES := vendor custom transient i2c
+EEPROM_DRIVER ?= vendor
+ifeq ($(filter $(EEPROM_DRIVER),$(VALID_EEPROM_DRIVER_TYPES)),)
+  $(error EEPROM_DRIVER="$(EEPROM_DRIVER)" is not a valid EEPROM driver)
+else
+  OPT_DEFS += -DEEPROM_ENABLE
+  ifeq ($(strip $(EEPROM_DRIVER)), custom)
+    OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_CUSTOM
+    COMMON_VPATH += $(DRIVER_PATH)/eeprom
+    SRC += eeprom_driver.c
+  else ifeq ($(strip $(EEPROM_DRIVER)), i2c)
+    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)), transient)
+    OPT_DEFS += -DEEPROM_DRIVER -DEEPROM_TRANSIENT
+    COMMON_VPATH += $(DRIVER_PATH)/eeprom
+    SRC += eeprom_driver.c eeprom_transient.c
+  else ifeq ($(strip $(EEPROM_DRIVER)), vendor)
+    OPT_DEFS += -DEEPROM_VENDOR
+    ifeq ($(PLATFORM),AVR)
+      # Automatically provided by avr-libc, nothing required
+    else ifeq ($(PLATFORM),CHIBIOS)
+      ifeq ($(MCU_SERIES), STM32F3xx)
+        SRC += $(PLATFORM_COMMON_DIR)/eeprom_stm32.c
+        SRC += $(PLATFORM_COMMON_DIR)/flash_stm32.c
+        OPT_DEFS += -DEEPROM_EMU_STM32F303xC
+        OPT_DEFS += -DSTM32_EEPROM_ENABLE
+      else ifeq ($(MCU_SERIES), STM32F1xx)
+        SRC += $(PLATFORM_COMMON_DIR)/eeprom_stm32.c
+        SRC += $(PLATFORM_COMMON_DIR)/flash_stm32.c
+        OPT_DEFS += -DEEPROM_EMU_STM32F103xB
+        OPT_DEFS += -DSTM32_EEPROM_ENABLE
+      else ifeq ($(MCU_SERIES)_$(MCU_LDSCRIPT), STM32F0xx_STM32F072xB)
+        SRC += $(PLATFORM_COMMON_DIR)/eeprom_stm32.c
+        SRC += $(PLATFORM_COMMON_DIR)/flash_stm32.c
+        OPT_DEFS += -DEEPROM_EMU_STM32F072xB
+        OPT_DEFS += -DSTM32_EEPROM_ENABLE
+      else
+        # This will effectively work the same as "transient" if not supported by the chip
+        SRC += $(PLATFORM_COMMON_DIR)/eeprom_teensy.c
+      endif
+    else ifeq ($(PLATFORM),ARM_ATSAM)
+      SRC += $(PLATFORM_COMMON_DIR)/eeprom.c
+    else ifeq ($(PLATFORM),TEST)
+      SRC += $(PLATFORM_COMMON_DIR)/eeprom.c
+    endif
+  endif
+endif
+
+GRAVE_ESC_ENABLE ?= yes
+ifeq ($(strip $(GRAVE_ESC_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_grave_esc.c
+    OPT_DEFS += -DGRAVE_ESC_ENABLE
+endif
+
+ifeq ($(strip $(DYNAMIC_MACRO_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_dynamic_macro.c
+    OPT_DEFS += -DDYNAMIC_MACRO_ENABLE
+endif
+
+ifeq ($(strip $(COMBO_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_combo.c
+    OPT_DEFS += -DCOMBO_ENABLE
+endif
+
+ifeq ($(strip $(TAP_DANCE_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_tap_dance.c
+    OPT_DEFS += -DTAP_DANCE_ENABLE
+endif
+
+ifeq ($(strip $(KEY_LOCK_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_key_lock.c
+    OPT_DEFS += -DKEY_LOCK_ENABLE
+endif
+
+ifeq ($(strip $(LEADER_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_leader.c
+    OPT_DEFS += -DLEADER_ENABLE
+endif
+
+ifeq ($(strip $(AUTO_SHIFT_ENABLE)), yes)
+    SRC += $(QUANTUM_DIR)/process_keycode/process_auto_shift.c
+    OPT_DEFS += -DAUTO_SHIFT_ENABLE
+    ifeq ($(strip $(AUTO_SHIFT_MODIFIERS)), yes)
+        OPT_DEFS += -DAUTO_SHIFT_MODIFIERS
+    endif
+endif

doxygen-todo

@@ -1,13 +1,10 @@
 tmk_core/protocol
-tmk_core/protocol/bluefruit
 tmk_core/protocol/chibios
 tmk_core/protocol/iwrap
 tmk_core/protocol/lufa
-tmk_core/protocol/mbed
 tmk_core/protocol/midi
 tmk_core/protocol/midi/bytequeue
 tmk_core/protocol/midi/Config
-tmk_core/protocol/pjrc
 tmk_core/protocol/usb_hid
 tmk_core/protocol/vusb
 tmk_core/tool

drivers/arm/ws2812.c

@@ -1 +0,0 @@
-#error("NOT SUPPORTED")

drivers/arm/ws2812_pwm.c

@@ -1 +0,0 @@
-#error("NOT SUPPORTED")

drivers/arm/ws2812_spi.c

@@ -1 +0,0 @@
-#error("NOT SUPPORTED")

drivers/avr/analog.c

@@ -14,24 +14,31 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-// Simple analog to digitial conversion
-
 #include <avr/io.h>
 #include <avr/pgmspace.h>
 #include <stdint.h>
 #include "analog.h"
 
-static uint8_t aref = (1 << REFS0);  // default to AREF = Vcc
+static uint8_t aref = ADC_REF_POWER;
 
-void analogReference(uint8_t mode) { aref = mode & 0xC0; }
+void analogReference(uint8_t mode) { aref = mode & (_BV(REFS1) | _BV(REFS0)); }
 
 // Arduino compatible pin input
 int16_t analogRead(uint8_t pin) {
 #if defined(__AVR_ATmega32U4__)
-    static const uint8_t PROGMEM pin_to_mux[] = {0x00, 0x01, 0x04, 0x05, 0x06, 0x07, 0x25, 0x24, 0x23, 0x22, 0x21, 0x20};
+    // clang-format off
+    static const uint8_t PROGMEM pin_to_mux[] = {
+        //A0    A1    A2    A3    A4    A5
+        //F7    F6    F5    F4    F1    F0
+        0x07, 0x06, 0x05, 0x04, 0x01, 0x00,
+        //A6    A7    A8    A9   A10   A11
+        //D4    D7    B4    B5    B6    D6
+        0x20, 0x22, 0x23, 0x24, 0x25, 0x21
+    };
+    // clang-format on
     if (pin >= 12) return 0;
     return adc_read(pgm_read_byte(pin_to_mux + pin));
-#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
+#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__) || defined(__AVR_ATmega328P__) || defined(__AVR_ATmega328__)
     if (pin >= 8) return 0;
     return adc_read(pin);
 #else
@@ -39,20 +46,87 @@ int16_t analogRead(uint8_t pin) {
 #endif
 }
 
-// Mux input
+int16_t analogReadPin(pin_t pin) { return adc_read(pinToMux(pin)); }
+
+uint8_t pinToMux(pin_t pin) {
+    switch (pin) {
+        // clang-format off
+#if defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__)
+        case F0: return 0;  // ADC0
+        case F1: return _BV(MUX0);  // ADC1
+        case F2: return _BV(MUX1);  // ADC2
+        case F3: return _BV(MUX1) | _BV(MUX0);  // ADC3
+        case F4: return _BV(MUX2);  // ADC4
+        case F5: return _BV(MUX2) | _BV(MUX0);  // ADC5
+        case F6: return _BV(MUX2) | _BV(MUX1);  // ADC6
+        case F7: return _BV(MUX2) | _BV(MUX1) | _BV(MUX0);  // ADC7
+        default: return _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1) | _BV(MUX0);  // 0V
+#elif defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)
+        case F0: return 0;  // ADC0
+        case F1: return _BV(MUX0);  // ADC1
+        case F4: return _BV(MUX2);  // ADC4
+        case F5: return _BV(MUX2) | _BV(MUX0);  // ADC5
+        case F6: return _BV(MUX2) | _BV(MUX1);  // ADC6
+        case F7: return _BV(MUX2) | _BV(MUX1) | _BV(MUX0);  // ADC7
+        case D4: return _BV(MUX5);  // ADC8
+        case D6: return _BV(MUX5) | _BV(MUX0);  // ADC9
+        case D7: return _BV(MUX5) | _BV(MUX1);  // ADC10
+        case B4: return _BV(MUX5) | _BV(MUX1) | _BV(MUX0);  // ADC11
+        case B5: return _BV(MUX5) | _BV(MUX2);  // ADC12
+        case B6: return _BV(MUX5) | _BV(MUX2) | _BV(MUX0);  // ADC13
+        default: return _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1) | _BV(MUX0);  // 0V
+#elif defined(__AVR_ATmega32A__)
+        case A0: return 0;  // ADC0
+        case A1: return _BV(MUX0);  // ADC1
+        case A2: return _BV(MUX1);  // ADC2
+        case A3: return _BV(MUX1) | _BV(MUX0);  // ADC3
+        case A4: return _BV(MUX2);  // ADC4
+        case A5: return _BV(MUX2) | _BV(MUX0);  // ADC5
+        case A6: return _BV(MUX2) | _BV(MUX1);  // ADC6
+        case A7: return _BV(MUX2) | _BV(MUX1) | _BV(MUX0);  // ADC7
+        default: return _BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1) | _BV(MUX0);  // 0V
+#elif defined(__AVR_ATmega328P__) || defined(__AVR_ATmega328__)
+        case C0: return 0;  // ADC0
+        case C1: return _BV(MUX0);  // ADC1
+        case C2: return _BV(MUX1);  // ADC2
+        case C3: return _BV(MUX1) | _BV(MUX0);  // ADC3
+        case C4: return _BV(MUX2);  // ADC4
+        case C5: return _BV(MUX2) | _BV(MUX0);  // ADC5
+        // ADC7:6 not present in DIP package and not shared by GPIO pins
+        default: return _BV(MUX3) | _BV(MUX2) | _BV(MUX1) | _BV(MUX0);  // 0V
+#endif
+            // clang-format on
+    }
+}
+
 int16_t adc_read(uint8_t mux) {
-#if defined(__AVR_AT90USB162__)
-    return 0;
-#else
     uint8_t low;
 
-    ADCSRA = (1 << ADEN) | ADC_PRESCALER;                // enable ADC
-    ADCSRB = (1 << ADHSM) | (mux & 0x20);                // high speed mode
-    ADMUX  = aref | (mux & 0x1F);                        // configure mux input
-    ADCSRA = (1 << ADEN) | ADC_PRESCALER | (1 << ADSC);  // start the conversion
-    while (ADCSRA & (1 << ADSC))
-        ;                      // wait for result
-    low = ADCL;                // must read LSB first
-    return (ADCH << 8) | low;  // must read MSB only once!
+    // Enable ADC and configure prescaler
+    ADCSRA = _BV(ADEN) | ADC_PRESCALER;
+
+#if defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__)
+    // High speed mode and ADC8-13
+    ADCSRB = _BV(ADHSM) | (mux & _BV(MUX5));
+#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__)
+    // High speed mode only
+    ADCSRB = _BV(ADHSM);
 #endif
+
+    // Configure mux input
+#if defined(MUX4)
+    ADMUX = aref | (mux & (_BV(MUX4) | _BV(MUX3) | _BV(MUX2) | _BV(MUX1) | _BV(MUX0)));
+#else
+    ADMUX  = aref | (mux & (_BV(MUX3) | _BV(MUX2) | _BV(MUX1) | _BV(MUX0)));
+#endif
+
+    // Start the conversion
+    ADCSRA |= _BV(ADSC);
+    // Wait for result
+    while (ADCSRA & _BV(ADSC))
+        ;
+    // Must read LSB first
+    low = ADCL;
+    // Must read MSB only once!
+    return (ADCH << 8) | low;
 }

drivers/avr/analog.h

@@ -14,45 +14,40 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef _analog_h_included__
-#define _analog_h_included__
+#pragma once
 
 #include <stdint.h>
+#include "quantum.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 void    analogReference(uint8_t mode);
 int16_t analogRead(uint8_t pin);
+
+int16_t analogReadPin(pin_t pin);
+uint8_t pinToMux(pin_t pin);
+
 int16_t adc_read(uint8_t mux);
 #ifdef __cplusplus
 }
 #endif
 
-#define ADC_REF_POWER (1 << REFS0)
-#define ADC_REF_INTERNAL ((1 << REFS1) | (1 << REFS0))
-#define ADC_REF_EXTERNAL (0)
+#define ADC_REF_EXTERNAL 0                          // AREF, Internal Vref turned off
+#define ADC_REF_POWER _BV(REFS0)                    // AVCC with external capacitor on AREF pin
+#define ADC_REF_INTERNAL (_BV(REFS1) | _BV(REFS0))  // Internal 2.56V Voltage Reference with external capacitor on AREF pin (1.1V for 328P)
 
 // These prescaler values are for high speed mode, ADHSM = 1
-#if F_CPU == 16000000L
-#    define ADC_PRESCALER ((1 << ADPS2) | (1 << ADPS1))
+#if F_CPU == 16000000L || F_CPU == 12000000L
+#    define ADC_PRESCALER (_BV(ADPS2) | _BV(ADPS1))  // /64
 #elif F_CPU == 8000000L
-#    define ADC_PRESCALER ((1 << ADPS2) | (1 << ADPS0))
+#    define ADC_PRESCALER (_BV(ADPS2) | _BV(ADPS0))  // /32
 #elif F_CPU == 4000000L
-#    define ADC_PRESCALER ((1 << ADPS2))
+#    define ADC_PRESCALER (_BV(ADPS2))  // /16
 #elif F_CPU == 2000000L
-#    define ADC_PRESCALER ((1 << ADPS1) | (1 << ADPS0))
+#    define ADC_PRESCALER (_BV(ADPS1) | _BV(ADPS0))  // /8
 #elif F_CPU == 1000000L
-#    define ADC_PRESCALER ((1 << ADPS1))
+#    define ADC_PRESCALER _BV(ADPS1)  // /4
 #else
-#    define ADC_PRESCALER ((1 << ADPS0))
-#endif
-
-// some avr-libc versions do not properly define ADHSM
-#if defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
-#    if !defined(ADHSM)
-#        define ADHSM (7)
-#    endif
-#endif
-
+#    define ADC_PRESCALER _BV(ADPS0)  // /2
 #endif

drivers/avr/apa102.c

@@ -2,7 +2,7 @@
  * APA102 lib V1.0a
  *
  * Controls APA102 RGB-LEDs
- * Author: Mikkel (Duckle29 on github)
+ * Author: Mikkel (Duckle29 on GitHub)
  *
  * Dec 22th, 2017  v1.0a Initial Version
  *
@@ -30,8 +30,8 @@
 void inline apa102_setleds(LED_TYPE *ledarray, uint16_t leds) { apa102_setleds_pin(ledarray, leds, _BV(RGB_DI_PIN & 0xF), _BV(RGB_CLK_PIN & 0xF)); }
 
 void static inline apa102_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmask_DI, uint8_t pinmask_CLK) {
-    pinMode(RGB_DI_PIN, PinDirectionOutput);
-    pinMode(RGB_CLK_PIN, PinDirectionOutput);
+    setPinOutput(RGB_DI_PIN);
+    setPinOutput(RGB_CLK_PIN);
 
     apa102_send_array((uint8_t *)ledarray, leds)
 }
@@ -90,7 +90,7 @@ void apa102_end_frame(uint16_t leds) {
 void apa102_send_byte(uint8_t byte) {
     uint8_t i;
     for (i = 0; i < 8; i++) {
-    digitalWrite(RGB_DI_PIN, !!(byte & (1 << (7-i)));
-    digitalWrite(RGB_CLK_PIN, PinLevelHigh);
+        writePin(RGB_DI_PIN, !!(byte & (1 << (7 - i))));
+        writePinHigh(RGB_CLK_PIN);
     }
 }

drivers/avr/glcdfont.c

@@ -1,17 +1,7 @@
 // This is the 'classic' fixed-space bitmap font for Adafruit_GFX since 1.0.
 // See gfxfont.h for newer custom bitmap font info.
 
-#ifndef FONT5X7_H
-#define FONT5X7_H
-
-#ifdef __AVR__
-#    include <avr/io.h>
-#    include <avr/pgmspace.h>
-#elif defined(ESP8266)
-#    include <pgmspace.h>
-#else
-#    define PROGMEM
-#endif
+#include "progmem.h"
 
 // Standard ASCII 5x7 font
 
@@ -31,4 +21,3 @@ static const unsigned char font[] PROGMEM = {
     0x14, 0x14, 0x14, 0xF4, 0x14, 0x10, 0x10, 0xF0, 0x10, 0xF0, 0x00, 0x00, 0x1F, 0x10, 0x1F, 0x00, 0x00, 0x00, 0x1F, 0x14, 0x00, 0x00, 0x00, 0xFC, 0x14, 0x00, 0x00, 0xF0, 0x10, 0xF0, 0x10, 0x10, 0xFF, 0x10, 0xFF, 0x14, 0x14, 0x14, 0xFF, 0x14, 0x10, 0x10, 0x10, 0x1F, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x10, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x38, 0x44, 0x44, 0x38, 0x44, 0xFC, 0x4A, 0x4A, 0x4A, 0x34,                                                                                                                                                                                                                                                                                                                                                                                                       // sharp-s or beta
     0x7E, 0x02, 0x02, 0x06, 0x06, 0x02, 0x7E, 0x02, 0x7E, 0x02, 0x63, 0x55, 0x49, 0x41, 0x63, 0x38, 0x44, 0x44, 0x3C, 0x04, 0x40, 0x7E, 0x20, 0x1E, 0x20, 0x06, 0x02, 0x7E, 0x02, 0x02, 0x99, 0xA5, 0xE7, 0xA5, 0x99, 0x1C, 0x2A, 0x49, 0x2A, 0x1C, 0x4C, 0x72, 0x01, 0x72, 0x4C, 0x30, 0x4A, 0x4D, 0x4D, 0x30, 0x30, 0x48, 0x78, 0x48, 0x30, 0xBC, 0x62, 0x5A, 0x46, 0x3D, 0x3E, 0x49, 0x49, 0x49, 0x00, 0x7E, 0x01, 0x01, 0x01, 0x7E, 0x2A, 0x2A, 0x2A, 0x2A, 0x2A, 0x44, 0x44, 0x5F, 0x44, 0x44, 0x40, 0x51, 0x4A, 0x44, 0x40, 0x40, 0x44, 0x4A, 0x51, 0x40, 0x00, 0x00, 0xFF, 0x01, 0x03, 0xE0, 0x80, 0xFF, 0x00, 0x00, 0x08, 0x08, 0x6B, 0x6B, 0x08, 0x36, 0x12, 0x36, 0x24, 0x36, 0x06, 0x0F, 0x09, 0x0F, 0x06, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x10, 0x10, 0x00, 0x30, 0x40, 0xFF, 0x01, 0x01, 0x00, 0x1F, 0x01, 0x01, 0x1E, 0x00, 0x19, 0x1D, 0x17, 0x12, 0x00, 0x3C, 0x3C, 0x3C, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00  // #255 NBSP
 };
-#endif  // FONT5X7_H

drivers/avr/i2c_master.c

@@ -14,7 +14,7 @@
  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /* Library made by: g4lvanix
- * Github repository: https://github.com/g4lvanix/I2C-master-lib
+ * GitHub repository: https://github.com/g4lvanix/I2C-master-lib
  */
 
 #include <avr/io.h>

drivers/avr/i2c_master.h

@@ -14,7 +14,7 @@
  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /* Library made by: g4lvanix
- * Github repository: https://github.com/g4lvanix/I2C-master-lib
+ * GitHub repository: https://github.com/g4lvanix/I2C-master-lib
  */
 
 #ifndef I2C_MASTER_H

drivers/avr/i2c_slave.c

@@ -14,7 +14,7 @@
  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /* Library made by: g4lvanix
- * Github repository: https://github.com/g4lvanix/I2C-slave-lib
+ * GitHub repository: https://github.com/g4lvanix/I2C-slave-lib
  */
 
 #include <avr/io.h>

drivers/avr/i2c_slave.h

@@ -14,7 +14,7 @@
  *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /* Library made by: g4lvanix
- * Github repository: https://github.com/g4lvanix/I2C-slave-lib
+ * GitHub repository: https://github.com/g4lvanix/I2C-slave-lib
 
  Info: Inititate the library by giving the required address.
        Read or write to the necessary buffer according to the opperation.

drivers/avr/pro_micro.h

@@ -1,324 +0,0 @@
-/*
-  pins_arduino.h - Pin definition functions for Arduino
-  Part of Arduino - http://www.arduino.cc/
-
-  Copyright (c) 2007 David A. Mellis
-
-  This library is free software; you can redistribute it and/or
-  modify it under the terms of the GNU Lesser General Public
-  License as published by the Free Software Foundation; either
-  version 2.1 of the License, or (at your option) any later version.
-
-  This library is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General
-  Public License along with this library; if not, write to the
-  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
-  Boston, MA  02111-1307  USA
-
-  $Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
-*/
-
-#ifndef Pins_Arduino_h
-#define Pins_Arduino_h
-
-#include <avr/pgmspace.h>
-
-// Workaround for wrong definitions in "iom32u4.h".
-// This should be fixed in the AVR toolchain.
-#undef UHCON
-#undef UHINT
-#undef UHIEN
-#undef UHADDR
-#undef UHFNUM
-#undef UHFNUML
-#undef UHFNUMH
-#undef UHFLEN
-#undef UPINRQX
-#undef UPINTX
-#undef UPNUM
-#undef UPRST
-#undef UPCONX
-#undef UPCFG0X
-#undef UPCFG1X
-#undef UPSTAX
-#undef UPCFG2X
-#undef UPIENX
-#undef UPDATX
-#undef TCCR2A
-#undef WGM20
-#undef WGM21
-#undef COM2B0
-#undef COM2B1
-#undef COM2A0
-#undef COM2A1
-#undef TCCR2B
-#undef CS20
-#undef CS21
-#undef CS22
-#undef WGM22
-#undef FOC2B
-#undef FOC2A
-#undef TCNT2
-#undef TCNT2_0
-#undef TCNT2_1
-#undef TCNT2_2
-#undef TCNT2_3
-#undef TCNT2_4
-#undef TCNT2_5
-#undef TCNT2_6
-#undef TCNT2_7
-#undef OCR2A
-#undef OCR2_0
-#undef OCR2_1
-#undef OCR2_2
-#undef OCR2_3
-#undef OCR2_4
-#undef OCR2_5
-#undef OCR2_6
-#undef OCR2_7
-#undef OCR2B
-#undef OCR2_0
-#undef OCR2_1
-#undef OCR2_2
-#undef OCR2_3
-#undef OCR2_4
-#undef OCR2_5
-#undef OCR2_6
-#undef OCR2_7
-
-#define NUM_DIGITAL_PINS 30
-#define NUM_ANALOG_INPUTS 12
-
-#define TX_RX_LED_INIT DDRD |= (1 << 5), DDRB |= (1 << 0)
-#define TXLED0 PORTD |= (1 << 5)
-#define TXLED1 PORTD &= ~(1 << 5)
-#define RXLED0 PORTB |= (1 << 0)
-#define RXLED1 PORTB &= ~(1 << 0)
-
-static const uint8_t SDA = 2;
-static const uint8_t SCL = 3;
-#define LED_BUILTIN 13
-
-// Map SPI port to 'new' pins D14..D17
-static const uint8_t SS   = 17;
-static const uint8_t MOSI = 16;
-static const uint8_t MISO = 14;
-static const uint8_t SCK  = 15;
-
-// Mapping of analog pins as digital I/O
-// A6-A11 share with digital pins
-static const uint8_t ADC0  = 18;
-static const uint8_t ADC1  = 19;
-static const uint8_t ADC2  = 20;
-static const uint8_t ADC3  = 21;
-static const uint8_t ADC4  = 22;
-static const uint8_t ADC5  = 23;
-static const uint8_t ADC6  = 24;  // D4
-static const uint8_t ADC7  = 25;  // D6
-static const uint8_t ADC8  = 26;  // D8
-static const uint8_t ADC9  = 27;  // D9
-static const uint8_t ADC10 = 28;  // D10
-static const uint8_t ADC11 = 29;  // D12
-
-#define digitalPinToPCICR(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCICR) : ((uint8_t *)0))
-#define digitalPinToPCICRbit(p) 0
-#define digitalPinToPCMSK(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCMSK0) : ((uint8_t *)0))
-#define digitalPinToPCMSKbit(p) (((p) >= 8 && (p) <= 11) ? (p)-4 : ((p) == 14 ? 3 : ((p) == 15 ? 1 : ((p) == 16 ? 2 : ((p) == 17 ? 0 : (p - A8 + 4))))))
-
-//  __AVR_ATmega32U4__ has an unusual mapping of pins to channels
-extern const uint8_t PROGMEM analog_pin_to_channel_PGM[];
-#define analogPinToChannel(P) (pgm_read_byte(analog_pin_to_channel_PGM + (P)))
-
-#define digitalPinToInterrupt(p) ((p) == 0 ? 2 : ((p) == 1 ? 3 : ((p) == 2 ? 1 : ((p) == 3 ? 0 : ((p) == 7 ? 4 : NOT_AN_INTERRUPT)))))
-
-#ifdef ARDUINO_MAIN
-
-// On the Arduino board, digital pins are also used
-// for the analog output (software PWM).  Analog input
-// pins are a separate set.
-
-// ATMEL ATMEGA32U4 / ARDUINO LEONARDO
-//
-// D0               PD2                 RXD1/INT2
-// D1               PD3                 TXD1/INT3
-// D2               PD1     SDA         SDA/INT1
-// D3#              PD0     PWM8/SCL    OC0B/SCL/INT0
-// D4       A6      PD4                 ADC8
-// D5#              PC6     ???         OC3A/#OC4A
-// D6#      A7      PD7     FastPWM     #OC4D/ADC10
-// D7               PE6                 INT6/AIN0
-//
-// D8       A8      PB4                 ADC11/PCINT4
-// D9#      A9      PB5     PWM16       OC1A/#OC4B/ADC12/PCINT5
-// D10#     A10     PB6     PWM16       OC1B/0c4B/ADC13/PCINT6
-// D11#             PB7     PWM8/16     0C0A/OC1C/#RTS/PCINT7
-// D12      A11     PD6                 T1/#OC4D/ADC9
-// D13#             PC7     PWM10       CLK0/OC4A
-//
-// A0       D18     PF7                 ADC7
-// A1       D19     PF6                 ADC6
-// A2       D20     PF5                 ADC5
-// A3       D21     PF4                 ADC4
-// A4       D22     PF1                 ADC1
-// A5       D23     PF0                 ADC0
-//
-// New pins D14..D17 to map SPI port to digital pins
-//
-// MISO     D14     PB3                 MISO,PCINT3
-// SCK      D15     PB1                 SCK,PCINT1
-// MOSI     D16     PB2                 MOSI,PCINT2
-// SS       D17     PB0                 RXLED,SS/PCINT0
-//
-// Connected LEDs on board for TX and RX
-// TXLED    D24     PD5                 XCK1
-// RXLED    D17     PB0
-// HWB              PE2                 HWB
-
-// these arrays map port names (e.g. port B) to the
-// appropriate addresses for various functions (e.g. reading
-// and writing)
-const uint16_t PROGMEM port_to_mode_PGM[] = {
-    NOT_A_PORT, NOT_A_PORT, (uint16_t)&DDRB, (uint16_t)&DDRC, (uint16_t)&DDRD, (uint16_t)&DDRE, (uint16_t)&DDRF,
-};
-
-const uint16_t PROGMEM port_to_output_PGM[] = {
-    NOT_A_PORT, NOT_A_PORT, (uint16_t)&PORTB, (uint16_t)&PORTC, (uint16_t)&PORTD, (uint16_t)&PORTE, (uint16_t)&PORTF,
-};
-
-const uint16_t PROGMEM port_to_input_PGM[] = {
-    NOT_A_PORT, NOT_A_PORT, (uint16_t)&PINB, (uint16_t)&PINC, (uint16_t)&PIND, (uint16_t)&PINE, (uint16_t)&PINF,
-};
-
-const uint8_t PROGMEM digital_pin_to_port_PGM[] = {
-    PD,  // D0 - PD2
-    PD,  // D1 - PD3
-    PD,  // D2 - PD1
-    PD,  // D3 - PD0
-    PD,  // D4 - PD4
-    PC,  // D5 - PC6
-    PD,  // D6 - PD7
-    PE,  // D7 - PE6
-
-    PB,  // D8 - PB4
-    PB,  // D9 - PB5
-    PB,  // D10 - PB6
-    PB,  // D11 - PB7
-    PD,  // D12 - PD6
-    PC,  // D13 - PC7
-
-    PB,  // D14 - MISO - PB3
-    PB,  // D15 - SCK - PB1
-    PB,  // D16 - MOSI - PB2
-    PB,  // D17 - SS - PB0
-
-    PF,  // D18 - A0 - PF7
-    PF,  // D19 - A1 - PF6
-    PF,  // D20 - A2 - PF5
-    PF,  // D21 - A3 - PF4
-    PF,  // D22 - A4 - PF1
-    PF,  // D23 - A5 - PF0
-
-    PD,  // D24 - PD5
-    PD,  // D25 / D6 - A7 - PD7
-    PB,  // D26 / D8 - A8 - PB4
-    PB,  // D27 / D9 - A9 - PB5
-    PB,  // D28 / D10 - A10 - PB6
-    PD,  // D29 / D12 - A11 - PD6
-};
-
-const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
-    _BV(2),  // D0 - PD2
-    _BV(3),  // D1 - PD3
-    _BV(1),  // D2 - PD1
-    _BV(0),  // D3 - PD0
-    _BV(4),  // D4 - PD4
-    _BV(6),  // D5 - PC6
-    _BV(7),  // D6 - PD7
-    _BV(6),  // D7 - PE6
-
-    _BV(4),  // D8 - PB4
-    _BV(5),  // D9 - PB5
-    _BV(6),  // D10 - PB6
-    _BV(7),  // D11 - PB7
-    _BV(6),  // D12 - PD6
-    _BV(7),  // D13 - PC7
-
-    _BV(3),  // D14 - MISO - PB3
-    _BV(1),  // D15 - SCK - PB1
-    _BV(2),  // D16 - MOSI - PB2
-    _BV(0),  // D17 - SS - PB0
-
-    _BV(7),  // D18 - A0 - PF7
-    _BV(6),  // D19 - A1 - PF6
-    _BV(5),  // D20 - A2 - PF5
-    _BV(4),  // D21 - A3 - PF4
-    _BV(1),  // D22 - A4 - PF1
-    _BV(0),  // D23 - A5 - PF0
-
-    _BV(5),  // D24 - PD5
-    _BV(7),  // D25 / D6 - A7 - PD7
-    _BV(4),  // D26 / D8 - A8 - PB4
-    _BV(5),  // D27 / D9 - A9 - PB5
-    _BV(6),  // D28 / D10 - A10 - PB6
-    _BV(6),  // D29 / D12 - A11 - PD6
-};
-
-const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
-    NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, TIMER0B, /* 3 */
-    NOT_ON_TIMER, TIMER3A,                             /* 5 */
-    TIMER4D,                                           /* 6 */
-    NOT_ON_TIMER,
-
-    NOT_ON_TIMER, TIMER1A, /* 9 */
-    TIMER1B,               /* 10 */
-    TIMER0A,               /* 11 */
-
-    NOT_ON_TIMER, TIMER4A, /* 13 */
-
-    NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER,
-
-    NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER, NOT_ON_TIMER,
-};
-
-const uint8_t PROGMEM analog_pin_to_channel_PGM[] = {
-    7,   // A0               PF7                 ADC7
-    6,   // A1               PF6                 ADC6
-    5,   // A2               PF5                 ADC5
-    4,   // A3               PF4                 ADC4
-    1,   // A4               PF1                 ADC1
-    0,   // A5               PF0                 ADC0
-    8,   // A6       D4      PD4                 ADC8
-    10,  // A7       D6      PD7                 ADC10
-    11,  // A8       D8      PB4                 ADC11
-    12,  // A9       D9      PB5                 ADC12
-    13,  // A10      D10     PB6                 ADC13
-    9    // A11      D12     PD6                 ADC9
-};
-
-#endif /* ARDUINO_MAIN */
-
-// These serial port names are intended to allow libraries and architecture-neutral
-// sketches to automatically default to the correct port name for a particular type
-// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
-// the first hardware serial port whose RX/TX pins are not dedicated to another use.
-//
-// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
-//
-// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
-//
-// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
-//
-// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
-//
-// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
-//                            pins are NOT connected to anything by default.
-#define SERIAL_PORT_MONITOR Serial
-#define SERIAL_PORT_USBVIRTUAL Serial
-#define SERIAL_PORT_HARDWARE Serial1
-#define SERIAL_PORT_HARDWARE_OPEN Serial1
-
-#endif /* Pins_Arduino_h */

drivers/avr/spi_master.c

@@ -0,0 +1,176 @@
+/*  Copyright 2020
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <avr/io.h>
+
+#include "spi_master.h"
+#include "quantum.h"
+#include "timer.h"
+
+#if defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__)
+#    define SPI_SCK_PIN B1
+#    define SPI_MOSI_PIN B2
+#    define SPI_MISO_PIN B3
+#elif defined(__AVR_ATmega32A__)
+#    define SPI_SCK_PIN B7
+#    define SPI_MOSI_PIN B5
+#    define SPI_MISO_PIN B6
+#elif defined(__AVR_ATmega328P__) || defined(__AVR_ATmega328__)
+#    define SPI_SCK_PIN B5
+#    define SPI_MOSI_PIN B3
+#    define SPI_MISO_PIN B4
+#endif
+
+#ifndef SPI_TIMEOUT
+#    define SPI_TIMEOUT 100
+#endif
+
+static pin_t   currentSlavePin    = NO_PIN;
+static uint8_t currentSlaveConfig = 0;
+static bool    currentSlave2X     = false;
+
+void spi_init(void) {
+    writePinHigh(SPI_SS_PIN);
+    setPinOutput(SPI_SCK_PIN);
+    setPinOutput(SPI_MOSI_PIN);
+    setPinInput(SPI_MISO_PIN);
+
+    SPCR = (_BV(SPE) | _BV(MSTR));
+}
+
+bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) {
+    if (currentSlavePin != NO_PIN || slavePin == NO_PIN) {
+        return false;
+    }
+
+    currentSlaveConfig = 0;
+
+    if (lsbFirst) {
+        currentSlaveConfig |= _BV(DORD);
+    }
+
+    switch (mode) {
+        case 1:
+            currentSlaveConfig |= _BV(CPHA);
+            break;
+        case 2:
+            currentSlaveConfig |= _BV(CPOL);
+            break;
+        case 3:
+            currentSlaveConfig |= (_BV(CPOL) | _BV(CPHA));
+            break;
+    }
+
+    uint16_t roundedDivisor = 1;
+    while (roundedDivisor < divisor) {
+        roundedDivisor <<= 1;
+    }
+
+    switch (roundedDivisor) {
+        case 16:
+            currentSlaveConfig |= _BV(SPR0);
+            break;
+        case 64:
+            currentSlaveConfig |= _BV(SPR1);
+            break;
+        case 128:
+            currentSlaveConfig |= (_BV(SPR1) | _BV(SPR0));
+            break;
+        case 2:
+            currentSlave2X = true;
+            break;
+        case 8:
+            currentSlave2X = true;
+            currentSlaveConfig |= _BV(SPR0);
+            break;
+        case 32:
+            currentSlave2X = true;
+            currentSlaveConfig |= _BV(SPR1);
+            break;
+    }
+
+    SPCR |= currentSlaveConfig;
+    if (currentSlave2X) {
+        SPSR |= _BV(SPI2X);
+    }
+    currentSlavePin = slavePin;
+    setPinOutput(currentSlavePin);
+    writePinLow(currentSlavePin);
+
+    return true;
+}
+
+spi_status_t spi_write(uint8_t data) {
+    SPDR = data;
+
+    uint16_t timeout_timer = timer_read();
+    while (!(SPSR & _BV(SPIF))) {
+        if ((timer_read() - timeout_timer) >= SPI_TIMEOUT) {
+            return SPI_STATUS_TIMEOUT;
+        }
+    }
+
+    return SPDR;
+}
+
+spi_status_t spi_read() {
+    SPDR = 0x00;  // Dummy
+
+    uint16_t timeout_timer = timer_read();
+    while (!(SPSR & _BV(SPIF))) {
+        if ((timer_read() - timeout_timer) >= SPI_TIMEOUT) {
+            return SPI_STATUS_TIMEOUT;
+        }
+    }
+
+    return SPDR;
+}
+
+spi_status_t spi_transmit(const uint8_t *data, uint16_t length) {
+    spi_status_t status = SPI_STATUS_ERROR;
+
+    for (uint16_t i = 0; i < length; i++) {
+        status = spi_write(data[i]);
+    }
+
+    return status;
+}
+
+spi_status_t spi_receive(uint8_t *data, uint16_t length) {
+    spi_status_t status = SPI_STATUS_ERROR;
+
+    for (uint16_t i = 0; i < length; i++) {
+        status = spi_read();
+
+        if (status > 0) {
+            data[i] = status;
+        }
+    }
+
+    return (status < 0) ? status : SPI_STATUS_SUCCESS;
+}
+
+void spi_stop(void) {
+    if (currentSlavePin != NO_PIN) {
+        setPinOutput(currentSlavePin);
+        writePinHigh(currentSlavePin);
+        currentSlavePin = NO_PIN;
+        SPSR &= ~(_BV(SPI2X));
+        SPCR &= ~(currentSlaveConfig);
+        currentSlaveConfig = 0;
+        currentSlave2X     = false;
+    }
+}

drivers/avr/spi_master.h

@@ -0,0 +1,57 @@
+/*  Copyright 2020
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "quantum.h"
+
+typedef int16_t spi_status_t;
+
+// Hardware SS pin is defined in the header so that user code can refer to it
+#if defined(__AVR_ATmega16U2__) || defined(__AVR_ATmega32U2__) || defined(__AVR_ATmega16U4__) || defined(__AVR_ATmega32U4__) || defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB647__) || defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB1287__)
+#    define SPI_SS_PIN B0
+#elif defined(__AVR_ATmega32A__)
+#    define SPI_SS_PIN B4
+#elif defined(__AVR_ATmega328P__) || defined(__AVR_ATmega328__)
+#    define SPI_SS_PIN B2
+#endif
+
+#define SPI_STATUS_SUCCESS (0)
+#define SPI_STATUS_ERROR (-1)
+#define SPI_STATUS_TIMEOUT (-2)
+
+#define SPI_TIMEOUT_IMMEDIATE (0)
+#define SPI_TIMEOUT_INFINITE (0xFFFF)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void spi_init(void);
+
+bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor);
+
+spi_status_t spi_write(uint8_t data);
+
+spi_status_t spi_read(void);
+
+spi_status_t spi_transmit(const uint8_t *data, uint16_t length);
+
+spi_status_t spi_receive(uint8_t *data, uint16_t length);
+
+void spi_stop(void);
+#ifdef __cplusplus
+}
+#endif

drivers/avr/ssd1306.h

@@ -3,7 +3,6 @@
 
 #include <stdbool.h>
 #include <stdio.h>
-#include "pincontrol.h"
 #include "config.h"
 
 enum ssd1306_cmds {

drivers/avr/ws2812.c

@@ -20,12 +20,13 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-
 #include "ws2812.h"
 #include <avr/interrupt.h>
 #include <avr/io.h>
 #include <util/delay.h>
 
+#define pinmask(pin) (_BV((pin)&0xF))
+
 /*
  * Forward declare internal functions
  *
@@ -33,163 +34,19 @@
  * The length is the number of bytes to send - three per LED.
  */
 
-void ws2812_sendarray(uint8_t *array, uint16_t length);
-void ws2812_sendarray_mask(uint8_t *array, uint16_t length, uint8_t pinmask);
+static inline void ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t masklo, uint8_t maskhi);
 
+void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds) {
+    DDRx_ADDRESS(RGB_DI_PIN) |= pinmask(RGB_DI_PIN);
 
-#ifdef RGBW_BB_TWI
+    uint8_t masklo = ~(pinmask(RGB_DI_PIN)) & PORTx_ADDRESS(RGB_DI_PIN);
+    uint8_t maskhi = pinmask(RGB_DI_PIN) | PORTx_ADDRESS(RGB_DI_PIN);
 
-// Port for the I2C
-#    define I2C_DDR DDRD
-#    define I2C_PIN PIND
-#    define I2C_PORT PORTD
+    ws2812_sendarray_mask((uint8_t *)ledarray, number_of_leds * sizeof(LED_TYPE), masklo, maskhi);
 
-// Pins to be used in the bit banging
-#    define I2C_CLK 0
-#    define I2C_DAT 1
-
-#    define I2C_DATA_HI()           \
-        I2C_DDR &= ~(1 << I2C_DAT); \
-        I2C_PORT |= (1 << I2C_DAT);
-#    define I2C_DATA_LO()          \
-        I2C_DDR |= (1 << I2C_DAT); \
-        I2C_PORT &= ~(1 << I2C_DAT);
-
-#    define I2C_CLOCK_HI()          \
-        I2C_DDR &= ~(1 << I2C_CLK); \
-        I2C_PORT |= (1 << I2C_CLK);
-#    define I2C_CLOCK_LO()         \
-        I2C_DDR |= (1 << I2C_CLK); \
-        I2C_PORT &= ~(1 << I2C_CLK);
-
-#    define I2C_DELAY 1
-
-void I2C_WriteBit(unsigned char c) {
-    if (c > 0) {
-        I2C_DATA_HI();
-    } else {
-        I2C_DATA_LO();
-    }
-
-    I2C_CLOCK_HI();
-    _delay_us(I2C_DELAY);
-
-    I2C_CLOCK_LO();
-    _delay_us(I2C_DELAY);
-
-    if (c > 0) {
-        I2C_DATA_LO();
-    }
-
-    _delay_us(I2C_DELAY);
+    _delay_us(WS2812_TRST_US);
 }
 
-// Inits bitbanging port, must be called before using the functions below
-//
-void I2C_Init(void) {
-    I2C_PORT &= ~((1 << I2C_DAT) | (1 << I2C_CLK));
-
-    I2C_CLOCK_HI();
-    I2C_DATA_HI();
-
-    _delay_us(I2C_DELAY);
-}
-
-// Send a START Condition
-//
-void I2C_Start(void) {
-    // set both to high at the same time
-    I2C_DDR &= ~((1 << I2C_DAT) | (1 << I2C_CLK));
-    _delay_us(I2C_DELAY);
-
-    I2C_DATA_LO();
-    _delay_us(I2C_DELAY);
-
-    I2C_CLOCK_LO();
-    _delay_us(I2C_DELAY);
-}
-
-// Send a STOP Condition
-//
-void I2C_Stop(void) {
-    I2C_CLOCK_HI();
-    _delay_us(I2C_DELAY);
-
-    I2C_DATA_HI();
-    _delay_us(I2C_DELAY);
-}
-
-// write a byte to the I2C slave device
-//
-unsigned char I2C_Write(unsigned char c) {
-    for (char i = 0; i < 8; i++) {
-        I2C_WriteBit(c & 128);
-
-        c <<= 1;
-    }
-
-    I2C_WriteBit(0);
-    _delay_us(I2C_DELAY);
-    _delay_us(I2C_DELAY);
-
-    // _delay_us(I2C_DELAY);
-    // return I2C_ReadBit();
-    return 0;
-}
-
-#endif
-
-// Setleds for standard RGB
-void inline ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
-    // ws2812_setleds_pin(ledarray,leds, _BV(ws2812_pin));
-    ws2812_setleds_pin(ledarray, leds, _BV(RGB_DI_PIN & 0xF));
-}
-
-void inline ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t leds, uint8_t pinmask) {
-    // ws2812_DDRREG |= pinmask; // Enable DDR
-    // new universal format (DDR)
-    _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= pinmask;
-
-    ws2812_sendarray_mask((uint8_t *)ledarray, leds + leds + leds, pinmask);
-    _delay_us(50);
-}
-
-// Setleds for SK6812RGBW
-void inline ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
-#ifdef RGBW_BB_TWI
-    uint8_t sreg_prev, twcr_prev;
-    sreg_prev = SREG;
-    twcr_prev = TWCR;
-    cli();
-    TWCR &= ~(1 << TWEN);
-    I2C_Init();
-    I2C_Start();
-    I2C_Write(0x84);
-    uint16_t datlen = leds << 2;
-    uint8_t  curbyte;
-    uint8_t *data = (uint8_t *)ledarray;
-    while (datlen--) {
-        curbyte = *data++;
-        I2C_Write(curbyte);
-    }
-    I2C_Stop();
-    SREG = sreg_prev;
-    TWCR = twcr_prev;
-#endif
-
-    // ws2812_DDRREG |= _BV(ws2812_pin); // Enable DDR
-    // new universal format (DDR)
-    _SFR_IO8((RGB_DI_PIN >> 4) + 1) |= _BV(RGB_DI_PIN & 0xF);
-
-    ws2812_sendarray_mask((uint8_t *)ledarray, leds << 2, _BV(RGB_DI_PIN & 0xF));
-
-#ifndef RGBW_BB_TWI
-    _delay_us(80);
-#endif
-}
-
-void ws2812_sendarray(uint8_t *data, uint16_t datlen) { ws2812_sendarray_mask(data, datlen, _BV(RGB_DI_PIN & 0xF)); }
-
 /*
   This routine writes an array of bytes with RGB values to the Dataout pin
   using the fast 800kHz clockless WS2811/2812 protocol.
@@ -251,14 +108,9 @@ void ws2812_sendarray(uint8_t *data, uint16_t datlen) { ws2812_sendarray_mask(da
 #define w_nop8 w_nop4 w_nop4
 #define w_nop16 w_nop8 w_nop8
 
-void inline ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t maskhi) {
-    uint8_t curbyte, ctr, masklo;
-    uint8_t sreg_prev;
+static inline void ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t masklo, uint8_t maskhi) {
+    uint8_t curbyte, ctr, sreg_prev;
 
-    // masklo  =~maskhi&ws2812_PORTREG;
-    // maskhi |=        ws2812_PORTREG;
-    masklo = ~maskhi & _SFR_IO8((RGB_DI_PIN >> 4) + 2);
-    maskhi |= _SFR_IO8((RGB_DI_PIN >> 4) + 2);
     sreg_prev = SREG;
     cli();
 
@@ -321,7 +173,7 @@ void inline ws2812_sendarray_mask(uint8_t *data, uint16_t datlen, uint8_t maskhi
                      "       dec   %0    \n\t"  //  '1' [+2] '0' [+2]
                      "       brne  loop%=\n\t"  //  '1' [+3] '0' [+4]
                      : "=&d"(ctr)
-                     : "r"(curbyte), "I"(_SFR_IO_ADDR(_SFR_IO8((RGB_DI_PIN >> 4) + 2))), "r"(maskhi), "r"(masklo));
+                     : "r"(curbyte), "I"(_SFR_IO_ADDR(PORTx_ADDRESS(RGB_DI_PIN))), "r"(maskhi), "r"(masklo));
     }
 
     SREG = sreg_prev;

drivers/avr/ws2812_i2c.c

@@ -1,6 +1,10 @@
 #include "ws2812.h"
 #include "i2c_master.h"
 
+#ifdef RGBW
+#    error "RGBW not supported"
+#endif
+
 #ifndef WS2812_ADDRESS
 #    define WS2812_ADDRESS 0xb0
 #endif
@@ -21,11 +25,3 @@ void ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
 
     i2c_transmit(WS2812_ADDRESS, (uint8_t *)ledarray, sizeof(LED_TYPE) * leds, WS2812_TIMEOUT);
 }
-
-// Setleds for SK6812RGBW
-void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t leds) {
-// not supported - for now error out if its enabled
-#ifdef RGBW
-#    error "RGBW not supported"
-#endif
-}

drivers/boards/BLACKPILL_STM32_F401/board.c

@@ -0,0 +1,269 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/*
+ * This file has been automatically generated using ChibiStudio board
+ * generator plugin. Do not edit manually.
+ */
+
+#include "hal.h"
+#include "stm32_gpio.h"
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Type of STM32 GPIO port setup.
+ */
+typedef struct {
+  uint32_t              moder;
+  uint32_t              otyper;
+  uint32_t              ospeedr;
+  uint32_t              pupdr;
+  uint32_t              odr;
+  uint32_t              afrl;
+  uint32_t              afrh;
+} gpio_setup_t;
+
+/**
+ * @brief   Type of STM32 GPIO initialization data.
+ */
+typedef struct {
+#if STM32_HAS_GPIOA || defined(__DOXYGEN__)
+  gpio_setup_t          PAData;
+#endif
+#if STM32_HAS_GPIOB || defined(__DOXYGEN__)
+  gpio_setup_t          PBData;
+#endif
+#if STM32_HAS_GPIOC || defined(__DOXYGEN__)
+  gpio_setup_t          PCData;
+#endif
+#if STM32_HAS_GPIOD || defined(__DOXYGEN__)
+  gpio_setup_t          PDData;
+#endif
+#if STM32_HAS_GPIOE || defined(__DOXYGEN__)
+  gpio_setup_t          PEData;
+#endif
+#if STM32_HAS_GPIOF || defined(__DOXYGEN__)
+  gpio_setup_t          PFData;
+#endif
+#if STM32_HAS_GPIOG || defined(__DOXYGEN__)
+  gpio_setup_t          PGData;
+#endif
+#if STM32_HAS_GPIOH || defined(__DOXYGEN__)
+  gpio_setup_t          PHData;
+#endif
+#if STM32_HAS_GPIOI || defined(__DOXYGEN__)
+  gpio_setup_t          PIData;
+#endif
+#if STM32_HAS_GPIOJ || defined(__DOXYGEN__)
+  gpio_setup_t          PJData;
+#endif
+#if STM32_HAS_GPIOK || defined(__DOXYGEN__)
+  gpio_setup_t          PKData;
+#endif
+} gpio_config_t;
+
+/**
+ * @brief   STM32 GPIO static initialization data.
+ */
+static const gpio_config_t gpio_default_config = {
+#if STM32_HAS_GPIOA
+  {VAL_GPIOA_MODER, VAL_GPIOA_OTYPER, VAL_GPIOA_OSPEEDR, VAL_GPIOA_PUPDR,
+   VAL_GPIOA_ODR,   VAL_GPIOA_AFRL,   VAL_GPIOA_AFRH},
+#endif
+#if STM32_HAS_GPIOB
+  {VAL_GPIOB_MODER, VAL_GPIOB_OTYPER, VAL_GPIOB_OSPEEDR, VAL_GPIOB_PUPDR,
+   VAL_GPIOB_ODR,   VAL_GPIOB_AFRL,   VAL_GPIOB_AFRH},
+#endif
+#if STM32_HAS_GPIOC
+  {VAL_GPIOC_MODER, VAL_GPIOC_OTYPER, VAL_GPIOC_OSPEEDR, VAL_GPIOC_PUPDR,
+   VAL_GPIOC_ODR,   VAL_GPIOC_AFRL,   VAL_GPIOC_AFRH},
+#endif
+#if STM32_HAS_GPIOD
+  {VAL_GPIOD_MODER, VAL_GPIOD_OTYPER, VAL_GPIOD_OSPEEDR, VAL_GPIOD_PUPDR,
+   VAL_GPIOD_ODR,   VAL_GPIOD_AFRL,   VAL_GPIOD_AFRH},
+#endif
+#if STM32_HAS_GPIOE
+  {VAL_GPIOE_MODER, VAL_GPIOE_OTYPER, VAL_GPIOE_OSPEEDR, VAL_GPIOE_PUPDR,
+   VAL_GPIOE_ODR,   VAL_GPIOE_AFRL,   VAL_GPIOE_AFRH},
+#endif
+#if STM32_HAS_GPIOF
+  {VAL_GPIOF_MODER, VAL_GPIOF_OTYPER, VAL_GPIOF_OSPEEDR, VAL_GPIOF_PUPDR,
+   VAL_GPIOF_ODR,   VAL_GPIOF_AFRL,   VAL_GPIOF_AFRH},
+#endif
+#if STM32_HAS_GPIOG
+  {VAL_GPIOG_MODER, VAL_GPIOG_OTYPER, VAL_GPIOG_OSPEEDR, VAL_GPIOG_PUPDR,
+   VAL_GPIOG_ODR,   VAL_GPIOG_AFRL,   VAL_GPIOG_AFRH},
+#endif
+#if STM32_HAS_GPIOH
+  {VAL_GPIOH_MODER, VAL_GPIOH_OTYPER, VAL_GPIOH_OSPEEDR, VAL_GPIOH_PUPDR,
+   VAL_GPIOH_ODR,   VAL_GPIOH_AFRL,   VAL_GPIOH_AFRH},
+#endif
+#if STM32_HAS_GPIOI
+  {VAL_GPIOI_MODER, VAL_GPIOI_OTYPER, VAL_GPIOI_OSPEEDR, VAL_GPIOI_PUPDR,
+   VAL_GPIOI_ODR,   VAL_GPIOI_AFRL,   VAL_GPIOI_AFRH},
+#endif
+#if STM32_HAS_GPIOJ
+  {VAL_GPIOJ_MODER, VAL_GPIOJ_OTYPER, VAL_GPIOJ_OSPEEDR, VAL_GPIOJ_PUPDR,
+   VAL_GPIOJ_ODR,   VAL_GPIOJ_AFRL,   VAL_GPIOJ_AFRH},
+#endif
+#if STM32_HAS_GPIOK
+  {VAL_GPIOK_MODER, VAL_GPIOK_OTYPER, VAL_GPIOK_OSPEEDR, VAL_GPIOK_PUPDR,
+   VAL_GPIOK_ODR,   VAL_GPIOK_AFRL,   VAL_GPIOK_AFRH}
+#endif
+};
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+static void gpio_init(stm32_gpio_t *gpiop, const gpio_setup_t *config) {
+
+  gpiop->OTYPER  = config->otyper;
+  gpiop->OSPEEDR = config->ospeedr;
+  gpiop->PUPDR   = config->pupdr;
+  gpiop->ODR     = config->odr;
+  gpiop->AFRL    = config->afrl;
+  gpiop->AFRH    = config->afrh;
+  gpiop->MODER   = config->moder;
+}
+
+static void stm32_gpio_init(void) {
+
+  /* Enabling GPIO-related clocks, the mask comes from the
+     registry header file.*/
+  rccResetAHB1(STM32_GPIO_EN_MASK);
+  rccEnableAHB1(STM32_GPIO_EN_MASK, true);
+
+  /* Initializing all the defined GPIO ports.*/
+#if STM32_HAS_GPIOA
+  gpio_init(GPIOA, &gpio_default_config.PAData);
+#endif
+#if STM32_HAS_GPIOB
+  gpio_init(GPIOB, &gpio_default_config.PBData);
+#endif
+#if STM32_HAS_GPIOC
+  gpio_init(GPIOC, &gpio_default_config.PCData);
+#endif
+#if STM32_HAS_GPIOD
+  gpio_init(GPIOD, &gpio_default_config.PDData);
+#endif
+#if STM32_HAS_GPIOE
+  gpio_init(GPIOE, &gpio_default_config.PEData);
+#endif
+#if STM32_HAS_GPIOF
+  gpio_init(GPIOF, &gpio_default_config.PFData);
+#endif
+#if STM32_HAS_GPIOG
+  gpio_init(GPIOG, &gpio_default_config.PGData);
+#endif
+#if STM32_HAS_GPIOH
+  gpio_init(GPIOH, &gpio_default_config.PHData);
+#endif
+#if STM32_HAS_GPIOI
+  gpio_init(GPIOI, &gpio_default_config.PIData);
+#endif
+#if STM32_HAS_GPIOJ
+  gpio_init(GPIOJ, &gpio_default_config.PJData);
+#endif
+#if STM32_HAS_GPIOK
+  gpio_init(GPIOK, &gpio_default_config.PKData);
+#endif
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+__attribute__((weak)) void enter_bootloader_mode_if_requested(void) {}
+
+/**
+ * @brief   Early initialization code.
+ * @details GPIO ports and system clocks are initialized before everything
+ *          else.
+ */
+void __early_init(void) {
+  enter_bootloader_mode_if_requested();
+
+  stm32_gpio_init();
+  stm32_clock_init();
+}
+
+#if HAL_USE_SDC || defined(__DOXYGEN__)
+/**
+ * @brief   SDC card detection.
+ */
+bool sdc_lld_is_card_inserted(SDCDriver *sdcp) {
+
+  (void)sdcp;
+  /* TODO: Fill the implementation.*/
+  return true;
+}
+
+/**
+ * @brief   SDC card write protection detection.
+ */
+bool sdc_lld_is_write_protected(SDCDriver *sdcp) {
+
+  (void)sdcp;
+  /* TODO: Fill the implementation.*/
+  return false;
+}
+#endif /* HAL_USE_SDC */
+
+#if HAL_USE_MMC_SPI || defined(__DOXYGEN__)
+/**
+ * @brief   MMC_SPI card detection.
+ */
+bool mmc_lld_is_card_inserted(MMCDriver *mmcp) {
+
+  (void)mmcp;
+  /* TODO: Fill the implementation.*/
+  return true;
+}
+
+/**
+ * @brief   MMC_SPI card write protection detection.
+ */
+bool mmc_lld_is_write_protected(MMCDriver *mmcp) {
+
+  (void)mmcp;
+  /* TODO: Fill the implementation.*/
+  return false;
+}
+#endif
+
+/**
+ * @brief   Board-specific initialization code.
+ * @todo    Add your board-specific code, if any.
+ */
+void boardInit(void) {
+
+}

drivers/boards/BLACKPILL_STM32_F401/board.mk

@@ -0,0 +1,9 @@
+# List of all the board related files.
+BOARDSRC = $(BOARD_PATH)/boards/BLACKPILL_STM32_F401/board.c
+
+# Required include directories
+BOARDINC = $(BOARD_PATH)/boards/BLACKPILL_STM32_F401
+
+# Shared variables
+ALLCSRC += $(BOARDSRC)
+ALLINC  += $(BOARDINC)

drivers/boards/BLACKPILL_STM32_F401/cfg/board.fmpp

@@ -0,0 +1,15 @@
+sourceRoot: ../../../../../tools/ftl/processors/boards/stm32f4xx/templates
+outputRoot: ..
+dataRoot: .
+
+freemarkerLinks: {
+    lib: ../../../../../tools/ftl/libs
+}
+
+data : {
+  doc1:xml (
+    board.chcfg
+    {
+    }
+  )
+}

drivers/boards/BLACKPILL_STM32_F411/board.c

@@ -0,0 +1,269 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/*
+ * This file has been automatically generated using ChibiStudio board
+ * generator plugin. Do not edit manually.
+ */
+
+#include "hal.h"
+#include "stm32_gpio.h"
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Type of STM32 GPIO port setup.
+ */
+typedef struct {
+  uint32_t              moder;
+  uint32_t              otyper;
+  uint32_t              ospeedr;
+  uint32_t              pupdr;
+  uint32_t              odr;
+  uint32_t              afrl;
+  uint32_t              afrh;
+} gpio_setup_t;
+
+/**
+ * @brief   Type of STM32 GPIO initialization data.
+ */
+typedef struct {
+#if STM32_HAS_GPIOA || defined(__DOXYGEN__)
+  gpio_setup_t          PAData;
+#endif
+#if STM32_HAS_GPIOB || defined(__DOXYGEN__)
+  gpio_setup_t          PBData;
+#endif
+#if STM32_HAS_GPIOC || defined(__DOXYGEN__)
+  gpio_setup_t          PCData;
+#endif
+#if STM32_HAS_GPIOD || defined(__DOXYGEN__)
+  gpio_setup_t          PDData;
+#endif
+#if STM32_HAS_GPIOE || defined(__DOXYGEN__)
+  gpio_setup_t          PEData;
+#endif
+#if STM32_HAS_GPIOF || defined(__DOXYGEN__)
+  gpio_setup_t          PFData;
+#endif
+#if STM32_HAS_GPIOG || defined(__DOXYGEN__)
+  gpio_setup_t          PGData;
+#endif
+#if STM32_HAS_GPIOH || defined(__DOXYGEN__)
+  gpio_setup_t          PHData;
+#endif
+#if STM32_HAS_GPIOI || defined(__DOXYGEN__)
+  gpio_setup_t          PIData;
+#endif
+#if STM32_HAS_GPIOJ || defined(__DOXYGEN__)
+  gpio_setup_t          PJData;
+#endif
+#if STM32_HAS_GPIOK || defined(__DOXYGEN__)
+  gpio_setup_t          PKData;
+#endif
+} gpio_config_t;
+
+/**
+ * @brief   STM32 GPIO static initialization data.
+ */
+static const gpio_config_t gpio_default_config = {
+#if STM32_HAS_GPIOA
+  {VAL_GPIOA_MODER, VAL_GPIOA_OTYPER, VAL_GPIOA_OSPEEDR, VAL_GPIOA_PUPDR,
+   VAL_GPIOA_ODR,   VAL_GPIOA_AFRL,   VAL_GPIOA_AFRH},
+#endif
+#if STM32_HAS_GPIOB
+  {VAL_GPIOB_MODER, VAL_GPIOB_OTYPER, VAL_GPIOB_OSPEEDR, VAL_GPIOB_PUPDR,
+   VAL_GPIOB_ODR,   VAL_GPIOB_AFRL,   VAL_GPIOB_AFRH},
+#endif
+#if STM32_HAS_GPIOC
+  {VAL_GPIOC_MODER, VAL_GPIOC_OTYPER, VAL_GPIOC_OSPEEDR, VAL_GPIOC_PUPDR,
+   VAL_GPIOC_ODR,   VAL_GPIOC_AFRL,   VAL_GPIOC_AFRH},
+#endif
+#if STM32_HAS_GPIOD
+  {VAL_GPIOD_MODER, VAL_GPIOD_OTYPER, VAL_GPIOD_OSPEEDR, VAL_GPIOD_PUPDR,
+   VAL_GPIOD_ODR,   VAL_GPIOD_AFRL,   VAL_GPIOD_AFRH},
+#endif
+#if STM32_HAS_GPIOE
+  {VAL_GPIOE_MODER, VAL_GPIOE_OTYPER, VAL_GPIOE_OSPEEDR, VAL_GPIOE_PUPDR,
+   VAL_GPIOE_ODR,   VAL_GPIOE_AFRL,   VAL_GPIOE_AFRH},
+#endif
+#if STM32_HAS_GPIOF
+  {VAL_GPIOF_MODER, VAL_GPIOF_OTYPER, VAL_GPIOF_OSPEEDR, VAL_GPIOF_PUPDR,
+   VAL_GPIOF_ODR,   VAL_GPIOF_AFRL,   VAL_GPIOF_AFRH},
+#endif
+#if STM32_HAS_GPIOG
+  {VAL_GPIOG_MODER, VAL_GPIOG_OTYPER, VAL_GPIOG_OSPEEDR, VAL_GPIOG_PUPDR,
+   VAL_GPIOG_ODR,   VAL_GPIOG_AFRL,   VAL_GPIOG_AFRH},
+#endif
+#if STM32_HAS_GPIOH
+  {VAL_GPIOH_MODER, VAL_GPIOH_OTYPER, VAL_GPIOH_OSPEEDR, VAL_GPIOH_PUPDR,
+   VAL_GPIOH_ODR,   VAL_GPIOH_AFRL,   VAL_GPIOH_AFRH},
+#endif
+#if STM32_HAS_GPIOI
+  {VAL_GPIOI_MODER, VAL_GPIOI_OTYPER, VAL_GPIOI_OSPEEDR, VAL_GPIOI_PUPDR,
+   VAL_GPIOI_ODR,   VAL_GPIOI_AFRL,   VAL_GPIOI_AFRH},
+#endif
+#if STM32_HAS_GPIOJ
+  {VAL_GPIOJ_MODER, VAL_GPIOJ_OTYPER, VAL_GPIOJ_OSPEEDR, VAL_GPIOJ_PUPDR,
+   VAL_GPIOJ_ODR,   VAL_GPIOJ_AFRL,   VAL_GPIOJ_AFRH},
+#endif
+#if STM32_HAS_GPIOK
+  {VAL_GPIOK_MODER, VAL_GPIOK_OTYPER, VAL_GPIOK_OSPEEDR, VAL_GPIOK_PUPDR,
+   VAL_GPIOK_ODR,   VAL_GPIOK_AFRL,   VAL_GPIOK_AFRH}
+#endif
+};
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+static void gpio_init(stm32_gpio_t *gpiop, const gpio_setup_t *config) {
+
+  gpiop->OTYPER  = config->otyper;
+  gpiop->OSPEEDR = config->ospeedr;
+  gpiop->PUPDR   = config->pupdr;
+  gpiop->ODR     = config->odr;
+  gpiop->AFRL    = config->afrl;
+  gpiop->AFRH    = config->afrh;
+  gpiop->MODER   = config->moder;
+}
+
+static void stm32_gpio_init(void) {
+
+  /* Enabling GPIO-related clocks, the mask comes from the
+     registry header file.*/
+  rccResetAHB1(STM32_GPIO_EN_MASK);
+  rccEnableAHB1(STM32_GPIO_EN_MASK, true);
+
+  /* Initializing all the defined GPIO ports.*/
+#if STM32_HAS_GPIOA
+  gpio_init(GPIOA, &gpio_default_config.PAData);
+#endif
+#if STM32_HAS_GPIOB
+  gpio_init(GPIOB, &gpio_default_config.PBData);
+#endif
+#if STM32_HAS_GPIOC
+  gpio_init(GPIOC, &gpio_default_config.PCData);
+#endif
+#if STM32_HAS_GPIOD
+  gpio_init(GPIOD, &gpio_default_config.PDData);
+#endif
+#if STM32_HAS_GPIOE
+  gpio_init(GPIOE, &gpio_default_config.PEData);
+#endif
+#if STM32_HAS_GPIOF
+  gpio_init(GPIOF, &gpio_default_config.PFData);
+#endif
+#if STM32_HAS_GPIOG
+  gpio_init(GPIOG, &gpio_default_config.PGData);
+#endif
+#if STM32_HAS_GPIOH
+  gpio_init(GPIOH, &gpio_default_config.PHData);
+#endif
+#if STM32_HAS_GPIOI
+  gpio_init(GPIOI, &gpio_default_config.PIData);
+#endif
+#if STM32_HAS_GPIOJ
+  gpio_init(GPIOJ, &gpio_default_config.PJData);
+#endif
+#if STM32_HAS_GPIOK
+  gpio_init(GPIOK, &gpio_default_config.PKData);
+#endif
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+__attribute__((weak)) void enter_bootloader_mode_if_requested(void) {}
+
+/**
+ * @brief   Early initialization code.
+ * @details GPIO ports and system clocks are initialized before everything
+ *          else.
+ */
+void __early_init(void) {
+  enter_bootloader_mode_if_requested();
+
+  stm32_gpio_init();
+  stm32_clock_init();
+}
+
+#if HAL_USE_SDC || defined(__DOXYGEN__)
+/**
+ * @brief   SDC card detection.
+ */
+bool sdc_lld_is_card_inserted(SDCDriver *sdcp) {
+
+  (void)sdcp;
+  /* TODO: Fill the implementation.*/
+  return true;
+}
+
+/**
+ * @brief   SDC card write protection detection.
+ */
+bool sdc_lld_is_write_protected(SDCDriver *sdcp) {
+
+  (void)sdcp;
+  /* TODO: Fill the implementation.*/
+  return false;
+}
+#endif /* HAL_USE_SDC */
+
+#if HAL_USE_MMC_SPI || defined(__DOXYGEN__)
+/**
+ * @brief   MMC_SPI card detection.
+ */
+bool mmc_lld_is_card_inserted(MMCDriver *mmcp) {
+
+  (void)mmcp;
+  /* TODO: Fill the implementation.*/
+  return true;
+}
+
+/**
+ * @brief   MMC_SPI card write protection detection.
+ */
+bool mmc_lld_is_write_protected(MMCDriver *mmcp) {
+
+  (void)mmcp;
+  /* TODO: Fill the implementation.*/
+  return false;
+}
+#endif
+
+/**
+ * @brief   Board-specific initialization code.
+ * @todo    Add your board-specific code, if any.
+ */
+void boardInit(void) {
+
+}

drivers/boards/BLACKPILL_STM32_F411/board.mk

@@ -0,0 +1,9 @@
+# List of all the board related files.
+BOARDSRC = $(BOARD_PATH)/boards/BLACKPILL_STM32_F411/board.c
+
+# Required include directories
+BOARDINC = $(BOARD_PATH)/boards/BLACKPILL_STM32_F411
+
+# Shared variables
+ALLCSRC += $(BOARDSRC)
+ALLINC  += $(BOARDINC)

drivers/boards/BLACKPILL_STM32_F411/cfg/board.fmpp

@@ -0,0 +1,15 @@
+sourceRoot: ../../../../../tools/ftl/processors/boards/stm32f4xx/templates
+outputRoot: ..
+dataRoot: .
+
+freemarkerLinks: {
+    lib: ../../../../../tools/ftl/libs
+}
+
+data : {
+  doc1:xml (
+    board.chcfg
+    {
+    }
+  )
+}

drivers/boards/GENERIC_STM32_F072XB/board.c

@@ -0,0 +1,250 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/*
+ * This file has been automatically generated using ChibiStudio board
+ * generator plugin. Do not edit manually.
+ */
+
+#include "hal.h"
+#include "stm32_gpio.h"
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Type of STM32 GPIO port setup.
+ */
+typedef struct {
+    uint32_t moder;
+    uint32_t otyper;
+    uint32_t ospeedr;
+    uint32_t pupdr;
+    uint32_t odr;
+    uint32_t afrl;
+    uint32_t afrh;
+} gpio_setup_t;
+
+/**
+ * @brief   Type of STM32 GPIO initialization data.
+ */
+typedef struct {
+#if STM32_HAS_GPIOA || defined(__DOXYGEN__)
+    gpio_setup_t PAData;
+#endif
+#if STM32_HAS_GPIOB || defined(__DOXYGEN__)
+    gpio_setup_t PBData;
+#endif
+#if STM32_HAS_GPIOC || defined(__DOXYGEN__)
+    gpio_setup_t PCData;
+#endif
+#if STM32_HAS_GPIOD || defined(__DOXYGEN__)
+    gpio_setup_t PDData;
+#endif
+#if STM32_HAS_GPIOE || defined(__DOXYGEN__)
+    gpio_setup_t PEData;
+#endif
+#if STM32_HAS_GPIOF || defined(__DOXYGEN__)
+    gpio_setup_t PFData;
+#endif
+#if STM32_HAS_GPIOG || defined(__DOXYGEN__)
+    gpio_setup_t PGData;
+#endif
+#if STM32_HAS_GPIOH || defined(__DOXYGEN__)
+    gpio_setup_t PHData;
+#endif
+#if STM32_HAS_GPIOI || defined(__DOXYGEN__)
+    gpio_setup_t PIData;
+#endif
+#if STM32_HAS_GPIOJ || defined(__DOXYGEN__)
+    gpio_setup_t PJData;
+#endif
+#if STM32_HAS_GPIOK || defined(__DOXYGEN__)
+    gpio_setup_t PKData;
+#endif
+} gpio_config_t;
+
+/**
+ * @brief   STM32 GPIO static initialization data.
+ */
+static const gpio_config_t gpio_default_config = {
+#if STM32_HAS_GPIOA
+    {VAL_GPIOA_MODER, VAL_GPIOA_OTYPER, VAL_GPIOA_OSPEEDR, VAL_GPIOA_PUPDR, VAL_GPIOA_ODR, VAL_GPIOA_AFRL, VAL_GPIOA_AFRH},
+#endif
+#if STM32_HAS_GPIOB
+    {VAL_GPIOB_MODER, VAL_GPIOB_OTYPER, VAL_GPIOB_OSPEEDR, VAL_GPIOB_PUPDR, VAL_GPIOB_ODR, VAL_GPIOB_AFRL, VAL_GPIOB_AFRH},
+#endif
+#if STM32_HAS_GPIOC
+    {VAL_GPIOC_MODER, VAL_GPIOC_OTYPER, VAL_GPIOC_OSPEEDR, VAL_GPIOC_PUPDR, VAL_GPIOC_ODR, VAL_GPIOC_AFRL, VAL_GPIOC_AFRH},
+#endif
+#if STM32_HAS_GPIOD
+    {VAL_GPIOD_MODER, VAL_GPIOD_OTYPER, VAL_GPIOD_OSPEEDR, VAL_GPIOD_PUPDR, VAL_GPIOD_ODR, VAL_GPIOD_AFRL, VAL_GPIOD_AFRH},
+#endif
+#if STM32_HAS_GPIOE
+    {VAL_GPIOE_MODER, VAL_GPIOE_OTYPER, VAL_GPIOE_OSPEEDR, VAL_GPIOE_PUPDR, VAL_GPIOE_ODR, VAL_GPIOE_AFRL, VAL_GPIOE_AFRH},
+#endif
+#if STM32_HAS_GPIOF
+    {VAL_GPIOF_MODER, VAL_GPIOF_OTYPER, VAL_GPIOF_OSPEEDR, VAL_GPIOF_PUPDR, VAL_GPIOF_ODR, VAL_GPIOF_AFRL, VAL_GPIOF_AFRH},
+#endif
+#if STM32_HAS_GPIOG
+    {VAL_GPIOG_MODER, VAL_GPIOG_OTYPER, VAL_GPIOG_OSPEEDR, VAL_GPIOG_PUPDR, VAL_GPIOG_ODR, VAL_GPIOG_AFRL, VAL_GPIOG_AFRH},
+#endif
+#if STM32_HAS_GPIOH
+    {VAL_GPIOH_MODER, VAL_GPIOH_OTYPER, VAL_GPIOH_OSPEEDR, VAL_GPIOH_PUPDR, VAL_GPIOH_ODR, VAL_GPIOH_AFRL, VAL_GPIOH_AFRH},
+#endif
+#if STM32_HAS_GPIOI
+    {VAL_GPIOI_MODER, VAL_GPIOI_OTYPER, VAL_GPIOI_OSPEEDR, VAL_GPIOI_PUPDR, VAL_GPIOI_ODR, VAL_GPIOI_AFRL, VAL_GPIOI_AFRH},
+#endif
+#if STM32_HAS_GPIOJ
+    {VAL_GPIOJ_MODER, VAL_GPIOJ_OTYPER, VAL_GPIOJ_OSPEEDR, VAL_GPIOJ_PUPDR, VAL_GPIOJ_ODR, VAL_GPIOJ_AFRL, VAL_GPIOJ_AFRH},
+#endif
+#if STM32_HAS_GPIOK
+    {VAL_GPIOK_MODER, VAL_GPIOK_OTYPER, VAL_GPIOK_OSPEEDR, VAL_GPIOK_PUPDR, VAL_GPIOK_ODR, VAL_GPIOK_AFRL, VAL_GPIOK_AFRH}
+#endif
+};
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+static void gpio_init(stm32_gpio_t *gpiop, const gpio_setup_t *config) {
+    gpiop->OTYPER  = config->otyper;
+    gpiop->OSPEEDR = config->ospeedr;
+    gpiop->PUPDR   = config->pupdr;
+    gpiop->ODR     = config->odr;
+    gpiop->AFRL    = config->afrl;
+    gpiop->AFRH    = config->afrh;
+    gpiop->MODER   = config->moder;
+}
+
+static void stm32_gpio_init(void) {
+    /* Enabling GPIO-related clocks, the mask comes from the
+       registry header file.*/
+    rccResetAHB(STM32_GPIO_EN_MASK);
+    rccEnableAHB(STM32_GPIO_EN_MASK, true);
+
+    /* Initializing all the defined GPIO ports.*/
+#if STM32_HAS_GPIOA
+    gpio_init(GPIOA, &gpio_default_config.PAData);
+#endif
+#if STM32_HAS_GPIOB
+    gpio_init(GPIOB, &gpio_default_config.PBData);
+#endif
+#if STM32_HAS_GPIOC
+    gpio_init(GPIOC, &gpio_default_config.PCData);
+#endif
+#if STM32_HAS_GPIOD
+    gpio_init(GPIOD, &gpio_default_config.PDData);
+#endif
+#if STM32_HAS_GPIOE
+    gpio_init(GPIOE, &gpio_default_config.PEData);
+#endif
+#if STM32_HAS_GPIOF
+    gpio_init(GPIOF, &gpio_default_config.PFData);
+#endif
+#if STM32_HAS_GPIOG
+    gpio_init(GPIOG, &gpio_default_config.PGData);
+#endif
+#if STM32_HAS_GPIOH
+    gpio_init(GPIOH, &gpio_default_config.PHData);
+#endif
+#if STM32_HAS_GPIOI
+    gpio_init(GPIOI, &gpio_default_config.PIData);
+#endif
+#if STM32_HAS_GPIOJ
+    gpio_init(GPIOJ, &gpio_default_config.PJData);
+#endif
+#if STM32_HAS_GPIOK
+    gpio_init(GPIOK, &gpio_default_config.PKData);
+#endif
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+__attribute__((weak)) void enter_bootloader_mode_if_requested(void) {}
+
+/**
+ * @brief   Early initialization code.
+ * @details GPIO ports and system clocks are initialized before everything
+ *          else.
+ */
+void __early_init(void) {
+    enter_bootloader_mode_if_requested();
+
+    stm32_gpio_init();
+    stm32_clock_init();
+}
+
+#if HAL_USE_SDC || defined(__DOXYGEN__)
+/**
+ * @brief   SDC card detection.
+ */
+bool sdc_lld_is_card_inserted(SDCDriver *sdcp) {
+    (void)sdcp;
+    /* TODO: Fill the implementation.*/
+    return true;
+}
+
+/**
+ * @brief   SDC card write protection detection.
+ */
+bool sdc_lld_is_write_protected(SDCDriver *sdcp) {
+    (void)sdcp;
+    /* TODO: Fill the implementation.*/
+    return false;
+}
+#endif /* HAL_USE_SDC */
+
+#if HAL_USE_MMC_SPI || defined(__DOXYGEN__)
+/**
+ * @brief   MMC_SPI card detection.
+ */
+bool mmc_lld_is_card_inserted(MMCDriver *mmcp) {
+    (void)mmcp;
+    /* TODO: Fill the implementation.*/
+    return true;
+}
+
+/**
+ * @brief   MMC_SPI card write protection detection.
+ */
+bool mmc_lld_is_write_protected(MMCDriver *mmcp) {
+    (void)mmcp;
+    /* TODO: Fill the implementation.*/
+    return false;
+}
+#endif
+
+/**
+ * @brief   Board-specific initialization code.
+ * @todo    Add your board-specific code, if any.
+ */
+void boardInit(void) {}

drivers/boards/GENERIC_STM32_F072XB/board.h

@@ -0,0 +1,407 @@
+/*
+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/*
+ * This file has been automatically generated using ChibiStudio board
+ * generator plugin. Do not edit manually.
+ */
+
+#ifndef BOARD_H
+#define BOARD_H
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/*
+ * Setup for Generic STM32_F072 Board
+ */
+
+/*
+ * Board identifier.
+ */
+#define BOARD_GENERIC_STM32_F072XB
+#define BOARD_NAME "STM32_F072"
+
+/*
+ * Board oscillators-related settings.
+ * NOTE: LSE not fitted.
+ * NOTE: HSE not fitted.
+ */
+#if !defined(STM32_LSECLK)
+#    define STM32_LSECLK 0U
+#endif
+
+#define STM32_LSEDRV (3U << 3U)
+
+#if !defined(STM32_HSECLK)
+#    define STM32_HSECLK 0U
+#endif
+
+#define STM32_HSE_BYPASS
+
+/*
+ * MCU type as defined in the ST header.
+ */
+#define STM32F072xB
+
+/*
+ * IO pins assignments.
+ */
+#define GPIOA_BUTTON 0U
+#define GPIOA_PIN1 1U
+#define GPIOA_PIN2 2U
+#define GPIOA_PIN3 3U
+#define GPIOA_PIN4 4U
+#define GPIOA_PIN5 5U
+#define GPIOA_PIN6 6U
+#define GPIOA_PIN7 7U
+#define GPIOA_PIN8 8U
+#define GPIOA_PIN9 9U
+#define GPIOA_PIN10 10U
+#define GPIOA_USB_DM 11U
+#define GPIOA_USB_DP 12U
+#define GPIOA_SWDIO 13U
+#define GPIOA_SWCLK 14U
+#define GPIOA_PIN15 15U
+
+#define GPIOB_PIN0 0U
+#define GPIOB_PIN1 1U
+#define GPIOB_PIN2 2U
+#define GPIOB_PIN3 3U
+#define GPIOB_PIN4 4U
+#define GPIOB_PIN5 5U
+#define GPIOB_PIN6 6U
+#define GPIOB_PIN7 7U
+#define GPIOB_PIN8 8U
+#define GPIOB_PIN9 9U
+#define GPIOB_PIN10 10U
+#define GPIOB_PIN11 11U
+#define GPIOB_PIN12 12U
+#define GPIOB_SPI2_SCK 13U
+#define GPIOB_SPI2_MISO 14U
+#define GPIOB_SPI2_MOSI 15U
+
+#define GPIOC_MEMS_CS 0U
+#define GPIOC_PIN1 1U
+#define GPIOC_PIN2 2U
+#define GPIOC_PIN3 3U
+#define GPIOC_PIN4 4U
+#define GPIOC_PIN5 5U
+#define GPIOC_LED_RED 6U
+#define GPIOC_LED_BLUE 7U
+#define GPIOC_LED_ORANGE 8U
+#define GPIOC_LED_GREEN 9U
+#define GPIOC_PIN10 10U
+#define GPIOC_PIN11 11U
+#define GPIOC_PIN12 12U
+#define GPIOC_PIN13 13U
+#define GPIOC_OSC32_IN 14U
+#define GPIOC_OSC32_OUT 15U
+
+#define GPIOD_PIN0 0U
+#define GPIOD_PIN1 1U
+#define GPIOD_PIN2 2U
+#define GPIOD_PIN3 3U
+#define GPIOD_PIN4 4U
+#define GPIOD_PIN5 5U
+#define GPIOD_PIN6 6U
+#define GPIOD_PIN7 7U
+#define GPIOD_PIN8 8U
+#define GPIOD_PIN9 9U
+#define GPIOD_PIN10 10U
+#define GPIOD_PIN11 11U
+#define GPIOD_PIN12 12U
+#define GPIOD_PIN13 13U
+#define GPIOD_PIN14 14U
+#define GPIOD_PIN15 15U
+
+#define GPIOE_PIN0 0U
+#define GPIOE_PIN1 1U
+#define GPIOE_PIN2 2U
+#define GPIOE_PIN3 3U
+#define GPIOE_PIN4 4U
+#define GPIOE_PIN5 5U
+#define GPIOE_PIN6 6U
+#define GPIOE_PIN7 7U
+#define GPIOE_PIN8 8U
+#define GPIOE_PIN9 9U
+#define GPIOE_PIN10 10U
+#define GPIOE_PIN11 11U
+#define GPIOE_PIN12 12U
+#define GPIOE_PIN13 13U
+#define GPIOE_PIN14 14U
+#define GPIOE_PIN15 15U
+
+#define GPIOF_OSC_IN 0U
+#define GPIOF_OSC_OUT 1U
+#define GPIOF_PIN2 2U
+#define GPIOF_PIN3 3U
+#define GPIOF_PIN4 4U
+#define GPIOF_PIN5 5U
+#define GPIOF_PIN6 6U
+#define GPIOF_PIN7 7U
+#define GPIOF_PIN8 8U
+#define GPIOF_PIN9 9U
+#define GPIOF_PIN10 10U
+#define GPIOF_PIN11 11U
+#define GPIOF_PIN12 12U
+#define GPIOF_PIN13 13U
+#define GPIOF_PIN14 14U
+#define GPIOF_PIN15 15U
+
+/*
+ * IO lines assignments.
+ */
+#define LINE_BUTTON PAL_LINE(GPIOA, 0U)
+#define LINE_USB_DM PAL_LINE(GPIOA, 11U)
+#define LINE_USB_DP PAL_LINE(GPIOA, 12U)
+#define LINE_SWDIO PAL_LINE(GPIOA, 13U)
+#define LINE_SWCLK PAL_LINE(GPIOA, 14U)
+#define LINE_SPI2_SCK PAL_LINE(GPIOB, 13U)
+#define LINE_SPI2_MISO PAL_LINE(GPIOB, 14U)
+#define LINE_SPI2_MOSI PAL_LINE(GPIOB, 15U)
+#define LINE_MEMS_CS PAL_LINE(GPIOC, 0U)
+#define LINE_LED_RED PAL_LINE(GPIOC, 6U)
+#define LINE_LED_BLUE PAL_LINE(GPIOC, 7U)
+#define LINE_LED_ORANGE PAL_LINE(GPIOC, 8U)
+#define LINE_LED_GREEN PAL_LINE(GPIOC, 9U)
+#define LINE_OSC32_IN PAL_LINE(GPIOC, 14U)
+#define LINE_OSC32_OUT PAL_LINE(GPIOC, 15U)
+#define LINE_OSC_IN PAL_LINE(GPIOF, 0U)
+#define LINE_OSC_OUT PAL_LINE(GPIOF, 1U)
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/*
+ * I/O ports initial setup, this configuration is established soon after reset
+ * in the initialization code.
+ * Please refer to the STM32 Reference Manual for details.
+ */
+#define PIN_MODE_INPUT(n) (0U << ((n)*2U))
+#define PIN_MODE_OUTPUT(n) (1U << ((n)*2U))
+#define PIN_MODE_ALTERNATE(n) (2U << ((n)*2U))
+#define PIN_MODE_ANALOG(n) (3U << ((n)*2U))
+#define PIN_ODR_LOW(n) (0U << (n))
+#define PIN_ODR_HIGH(n) (1U << (n))
+#define PIN_OTYPE_PUSHPULL(n) (0U << (n))
+#define PIN_OTYPE_OPENDRAIN(n) (1U << (n))
+#define PIN_OSPEED_VERYLOW(n) (0U << ((n)*2U))
+#define PIN_OSPEED_LOW(n) (1U << ((n)*2U))
+#define PIN_OSPEED_MEDIUM(n) (2U << ((n)*2U))
+#define PIN_OSPEED_HIGH(n) (3U << ((n)*2U))
+#define PIN_PUPDR_FLOATING(n) (0U << ((n)*2U))
+#define PIN_PUPDR_PULLUP(n) (1U << ((n)*2U))
+#define PIN_PUPDR_PULLDOWN(n) (2U << ((n)*2U))
+#define PIN_AFIO_AF(n, v) ((v) << (((n) % 8U) * 4U))
+
+/*
+ * GPIOA setup:
+ *
+ * PA0  - BUTTON                    (input floating).
+ * PA1  - PIN1                      (input pullup).
+ * PA2  - PIN2                      (input pullup).
+ * PA3  - PIN3                      (input pullup).
+ * PA4  - PIN4                      (input pullup).
+ * PA5  - PIN5                      (input pullup).
+ * PA6  - PIN6                      (input pullup).
+ * PA7  - PIN7                      (input pullup).
+ * PA8  - PIN8                      (input pullup).
+ * PA9  - PIN9                      (input pullup).
+ * PA10 - PIN10                     (input pullup).
+ * PA11 - USB_DM                    (input floating).
+ * PA12 - USB_DP                    (input floating).
+ * PA13 - SWDIO                     (alternate 0).
+ * PA14 - SWCLK                     (alternate 0).
+ * PA15 - PIN15                     (input pullup).
+ */
+#define VAL_GPIOA_MODER (PIN_MODE_INPUT(GPIOA_BUTTON) | PIN_MODE_INPUT(GPIOA_PIN1) | PIN_MODE_INPUT(GPIOA_PIN2) | PIN_MODE_INPUT(GPIOA_PIN3) | PIN_MODE_INPUT(GPIOA_PIN4) | PIN_MODE_INPUT(GPIOA_PIN5) | PIN_MODE_INPUT(GPIOA_PIN6) | PIN_MODE_INPUT(GPIOA_PIN7) | PIN_MODE_INPUT(GPIOA_PIN8) | PIN_MODE_INPUT(GPIOA_PIN9) | PIN_MODE_INPUT(GPIOA_PIN10) | PIN_MODE_INPUT(GPIOA_USB_DM) | PIN_MODE_INPUT(GPIOA_USB_DP) | PIN_MODE_ALTERNATE(GPIOA_SWDIO) | PIN_MODE_ALTERNATE(GPIOA_SWCLK) | PIN_MODE_INPUT(GPIOA_PIN15))
+#define VAL_GPIOA_OTYPER (PIN_OTYPE_PUSHPULL(GPIOA_BUTTON) | PIN_OTYPE_PUSHPULL(GPIOA_PIN1) | PIN_OTYPE_PUSHPULL(GPIOA_PIN2) | PIN_OTYPE_PUSHPULL(GPIOA_PIN3) | PIN_OTYPE_PUSHPULL(GPIOA_PIN4) | PIN_OTYPE_PUSHPULL(GPIOA_PIN5) | PIN_OTYPE_PUSHPULL(GPIOA_PIN6) | PIN_OTYPE_PUSHPULL(GPIOA_PIN7) | PIN_OTYPE_PUSHPULL(GPIOA_PIN8) | PIN_OTYPE_PUSHPULL(GPIOA_PIN9) | PIN_OTYPE_PUSHPULL(GPIOA_PIN10) | PIN_OTYPE_PUSHPULL(GPIOA_USB_DM) | PIN_OTYPE_PUSHPULL(GPIOA_USB_DP) | PIN_OTYPE_PUSHPULL(GPIOA_SWDIO) | PIN_OTYPE_PUSHPULL(GPIOA_SWCLK) | PIN_OTYPE_PUSHPULL(GPIOA_PIN15))
+#define VAL_GPIOA_OSPEEDR (PIN_OSPEED_VERYLOW(GPIOA_BUTTON) | PIN_OSPEED_VERYLOW(GPIOA_PIN1) | PIN_OSPEED_VERYLOW(GPIOA_PIN2) | PIN_OSPEED_VERYLOW(GPIOA_PIN3) | PIN_OSPEED_VERYLOW(GPIOA_PIN4) | PIN_OSPEED_VERYLOW(GPIOA_PIN5) | PIN_OSPEED_VERYLOW(GPIOA_PIN6) | PIN_OSPEED_VERYLOW(GPIOA_PIN7) | PIN_OSPEED_VERYLOW(GPIOA_PIN8) | PIN_OSPEED_VERYLOW(GPIOA_PIN9) | PIN_OSPEED_VERYLOW(GPIOA_PIN10) | PIN_OSPEED_VERYLOW(GPIOA_USB_DM) | PIN_OSPEED_VERYLOW(GPIOA_USB_DP) | PIN_OSPEED_HIGH(GPIOA_SWDIO) | PIN_OSPEED_HIGH(GPIOA_SWCLK) | PIN_OSPEED_HIGH(GPIOA_PIN15))
+#define VAL_GPIOA_PUPDR (PIN_PUPDR_FLOATING(GPIOA_BUTTON) | PIN_PUPDR_PULLUP(GPIOA_PIN1) | PIN_PUPDR_PULLUP(GPIOA_PIN2) | PIN_PUPDR_PULLUP(GPIOA_PIN3) | PIN_PUPDR_PULLUP(GPIOA_PIN4) | PIN_PUPDR_PULLUP(GPIOA_PIN5) | PIN_PUPDR_PULLUP(GPIOA_PIN6) | PIN_PUPDR_PULLUP(GPIOA_PIN7) | PIN_PUPDR_PULLUP(GPIOA_PIN8) | PIN_PUPDR_PULLUP(GPIOA_PIN9) | PIN_PUPDR_PULLUP(GPIOA_PIN10) | PIN_PUPDR_FLOATING(GPIOA_USB_DM) | PIN_PUPDR_FLOATING(GPIOA_USB_DP) | PIN_PUPDR_PULLUP(GPIOA_SWDIO) | PIN_PUPDR_PULLDOWN(GPIOA_SWCLK) | PIN_PUPDR_PULLUP(GPIOA_PIN15))
+#define VAL_GPIOA_ODR (PIN_ODR_HIGH(GPIOA_BUTTON) | PIN_ODR_HIGH(GPIOA_PIN1) | PIN_ODR_HIGH(GPIOA_PIN2) | PIN_ODR_HIGH(GPIOA_PIN3) | PIN_ODR_HIGH(GPIOA_PIN4) | PIN_ODR_HIGH(GPIOA_PIN5) | PIN_ODR_HIGH(GPIOA_PIN6) | PIN_ODR_HIGH(GPIOA_PIN7) | PIN_ODR_HIGH(GPIOA_PIN8) | PIN_ODR_HIGH(GPIOA_PIN9) | PIN_ODR_HIGH(GPIOA_PIN10) | PIN_ODR_HIGH(GPIOA_USB_DM) | PIN_ODR_HIGH(GPIOA_USB_DP) | PIN_ODR_HIGH(GPIOA_SWDIO) | PIN_ODR_HIGH(GPIOA_SWCLK) | PIN_ODR_HIGH(GPIOA_PIN15))
+#define VAL_GPIOA_AFRL (PIN_AFIO_AF(GPIOA_BUTTON, 0U) | PIN_AFIO_AF(GPIOA_PIN1, 0U) | PIN_AFIO_AF(GPIOA_PIN2, 0U) | PIN_AFIO_AF(GPIOA_PIN3, 0U) | PIN_AFIO_AF(GPIOA_PIN4, 0U) | PIN_AFIO_AF(GPIOA_PIN5, 0U) | PIN_AFIO_AF(GPIOA_PIN6, 0U) | PIN_AFIO_AF(GPIOA_PIN7, 0U))
+#define VAL_GPIOA_AFRH (PIN_AFIO_AF(GPIOA_PIN8, 0U) | PIN_AFIO_AF(GPIOA_PIN9, 0U) | PIN_AFIO_AF(GPIOA_PIN10, 0U) | PIN_AFIO_AF(GPIOA_USB_DM, 0U) | PIN_AFIO_AF(GPIOA_USB_DP, 0U) | PIN_AFIO_AF(GPIOA_SWDIO, 0U) | PIN_AFIO_AF(GPIOA_SWCLK, 0U) | PIN_AFIO_AF(GPIOA_PIN15, 0U))
+
+/*
+ * GPIOB setup:
+ *
+ * PB0  - PIN0                      (input pullup).
+ * PB1  - PIN1                      (input pullup).
+ * PB2  - PIN2                      (input pullup).
+ * PB3  - PIN3                      (input pullup).
+ * PB4  - PIN4                      (input pullup).
+ * PB5  - PIN5                      (input pullup).
+ * PB6  - PIN6                      (input pullup).
+ * PB7  - PIN7                      (input pullup).
+ * PB8  - PIN8                      (input pullup).
+ * PB9  - PIN9                      (input pullup).
+ * PB10 - PIN10                     (input pullup).
+ * PB11 - PIN11                     (input pullup).
+ * PB12 - PIN12                     (input pullup).
+ * PB13 - SPI2_SCK                  (alternate 0).
+ * PB14 - SPI2_MISO                 (alternate 0).
+ * PB15 - SPI2_MOSI                 (alternate 0).
+ */
+#define VAL_GPIOB_MODER (PIN_MODE_INPUT(GPIOB_PIN0) | PIN_MODE_INPUT(GPIOB_PIN1) | PIN_MODE_INPUT(GPIOB_PIN2) | PIN_MODE_INPUT(GPIOB_PIN3) | PIN_MODE_INPUT(GPIOB_PIN4) | PIN_MODE_INPUT(GPIOB_PIN5) | PIN_MODE_INPUT(GPIOB_PIN6) | PIN_MODE_INPUT(GPIOB_PIN7) | PIN_MODE_INPUT(GPIOB_PIN8) | PIN_MODE_INPUT(GPIOB_PIN9) | PIN_MODE_INPUT(GPIOB_PIN10) | PIN_MODE_INPUT(GPIOB_PIN11) | PIN_MODE_INPUT(GPIOB_PIN12) | PIN_MODE_ALTERNATE(GPIOB_SPI2_SCK) | PIN_MODE_ALTERNATE(GPIOB_SPI2_MISO) | PIN_MODE_ALTERNATE(GPIOB_SPI2_MOSI))
+#define VAL_GPIOB_OTYPER (PIN_OTYPE_PUSHPULL(GPIOB_PIN0) | PIN_OTYPE_PUSHPULL(GPIOB_PIN1) | PIN_OTYPE_PUSHPULL(GPIOB_PIN2) | PIN_OTYPE_PUSHPULL(GPIOB_PIN3) | PIN_OTYPE_PUSHPULL(GPIOB_PIN4) | PIN_OTYPE_PUSHPULL(GPIOB_PIN5) | PIN_OTYPE_PUSHPULL(GPIOB_PIN6) | PIN_OTYPE_PUSHPULL(GPIOB_PIN7) | PIN_OTYPE_PUSHPULL(GPIOB_PIN8) | PIN_OTYPE_PUSHPULL(GPIOB_PIN9) | PIN_OTYPE_PUSHPULL(GPIOB_PIN10) | PIN_OTYPE_PUSHPULL(GPIOB_PIN11) | PIN_OTYPE_PUSHPULL(GPIOB_PIN12) | PIN_OTYPE_PUSHPULL(GPIOB_SPI2_SCK) | PIN_OTYPE_PUSHPULL(GPIOB_SPI2_MISO) | PIN_OTYPE_PUSHPULL(GPIOB_SPI2_MOSI))
+#define VAL_GPIOB_OSPEEDR (PIN_OSPEED_VERYLOW(GPIOB_PIN0) | PIN_OSPEED_VERYLOW(GPIOB_PIN1) | PIN_OSPEED_HIGH(GPIOB_PIN2) | PIN_OSPEED_HIGH(GPIOB_PIN3) | PIN_OSPEED_HIGH(GPIOB_PIN4) | PIN_OSPEED_VERYLOW(GPIOB_PIN5) | PIN_OSPEED_VERYLOW(GPIOB_PIN6) | PIN_OSPEED_VERYLOW(GPIOB_PIN7) | PIN_OSPEED_VERYLOW(GPIOB_PIN8) | PIN_OSPEED_VERYLOW(GPIOB_PIN9) | PIN_OSPEED_VERYLOW(GPIOB_PIN10) | PIN_OSPEED_VERYLOW(GPIOB_PIN11) | PIN_OSPEED_VERYLOW(GPIOB_PIN12) | PIN_OSPEED_VERYLOW(GPIOB_SPI2_SCK) | PIN_OSPEED_VERYLOW(GPIOB_SPI2_MISO) | PIN_OSPEED_VERYLOW(GPIOB_SPI2_MOSI))
+#define VAL_GPIOB_PUPDR (PIN_PUPDR_PULLUP(GPIOB_PIN0) | PIN_PUPDR_PULLUP(GPIOB_PIN1) | PIN_PUPDR_PULLUP(GPIOB_PIN2) | PIN_PUPDR_PULLUP(GPIOB_PIN3) | PIN_PUPDR_PULLUP(GPIOB_PIN4) | PIN_PUPDR_PULLUP(GPIOB_PIN5) | PIN_PUPDR_PULLUP(GPIOB_PIN6) | PIN_PUPDR_PULLUP(GPIOB_PIN7) | PIN_PUPDR_PULLUP(GPIOB_PIN8) | PIN_PUPDR_PULLUP(GPIOB_PIN9) | PIN_PUPDR_PULLUP(GPIOB_PIN10) | PIN_PUPDR_PULLUP(GPIOB_PIN11) | PIN_PUPDR_PULLUP(GPIOB_PIN12) | PIN_PUPDR_FLOATING(GPIOB_SPI2_SCK) | PIN_PUPDR_FLOATING(GPIOB_SPI2_MISO) | PIN_PUPDR_FLOATING(GPIOB_SPI2_MOSI))
+#define VAL_GPIOB_ODR (PIN_ODR_HIGH(GPIOB_PIN0) | PIN_ODR_HIGH(GPIOB_PIN1) | PIN_ODR_HIGH(GPIOB_PIN2) | PIN_ODR_HIGH(GPIOB_PIN3) | PIN_ODR_HIGH(GPIOB_PIN4) | PIN_ODR_HIGH(GPIOB_PIN5) | PIN_ODR_HIGH(GPIOB_PIN6) | PIN_ODR_HIGH(GPIOB_PIN7) | PIN_ODR_HIGH(GPIOB_PIN8) | PIN_ODR_HIGH(GPIOB_PIN9) | PIN_ODR_HIGH(GPIOB_PIN10) | PIN_ODR_HIGH(GPIOB_PIN11) | PIN_ODR_HIGH(GPIOB_PIN12) | PIN_ODR_HIGH(GPIOB_SPI2_SCK) | PIN_ODR_HIGH(GPIOB_SPI2_MISO) | PIN_ODR_HIGH(GPIOB_SPI2_MOSI))
+#define VAL_GPIOB_AFRL (PIN_AFIO_AF(GPIOB_PIN0, 0U) | PIN_AFIO_AF(GPIOB_PIN1, 0U) | PIN_AFIO_AF(GPIOB_PIN2, 0U) | PIN_AFIO_AF(GPIOB_PIN3, 0U) | PIN_AFIO_AF(GPIOB_PIN4, 0U) | PIN_AFIO_AF(GPIOB_PIN5, 0U) | PIN_AFIO_AF(GPIOB_PIN6, 0U) | PIN_AFIO_AF(GPIOB_PIN7, 0U))
+#define VAL_GPIOB_AFRH (PIN_AFIO_AF(GPIOB_PIN8, 0U) | PIN_AFIO_AF(GPIOB_PIN9, 0U) | PIN_AFIO_AF(GPIOB_PIN10, 0U) | PIN_AFIO_AF(GPIOB_PIN11, 0U) | PIN_AFIO_AF(GPIOB_PIN12, 0U) | PIN_AFIO_AF(GPIOB_SPI2_SCK, 0U) | PIN_AFIO_AF(GPIOB_SPI2_MISO, 0U) | PIN_AFIO_AF(GPIOB_SPI2_MOSI, 0U))
+
+/*
+ * GPIOC setup:
+ *
+ * PC0  - MEMS_CS                   (output pushpull maximum).
+ * PC1  - PIN1                      (input pullup).
+ * PC2  - PIN2                      (input pullup).
+ * PC3  - PIN3                      (input pullup).
+ * PC4  - PIN4                      (input pullup).
+ * PC5  - PIN5                      (input pullup).
+ * PC6  - LED_RED                   (output pushpull maximum).
+ * PC7  - LED_BLUE                  (output pushpull maximum).
+ * PC8  - LED_ORANGE                (output pushpull maximum).
+ * PC9  - LED_GREEN                 (output pushpull maximum).
+ * PC10 - PIN10                     (input pullup).
+ * PC11 - PIN11                     (input pullup).
+ * PC12 - PIN12                     (input pullup).
+ * PC13 - PIN13                     (input pullup).
+ * PC14 - OSC32_IN                  (input floating).
+ * PC15 - OSC32_OUT                 (input floating).
+ */
+#define VAL_GPIOC_MODER (PIN_MODE_OUTPUT(GPIOC_MEMS_CS) | PIN_MODE_INPUT(GPIOC_PIN1) | PIN_MODE_INPUT(GPIOC_PIN2) | PIN_MODE_INPUT(GPIOC_PIN3) | PIN_MODE_INPUT(GPIOC_PIN4) | PIN_MODE_INPUT(GPIOC_PIN5) | PIN_MODE_OUTPUT(GPIOC_LED_RED) | PIN_MODE_OUTPUT(GPIOC_LED_BLUE) | PIN_MODE_OUTPUT(GPIOC_LED_ORANGE) | PIN_MODE_OUTPUT(GPIOC_LED_GREEN) | PIN_MODE_INPUT(GPIOC_PIN10) | PIN_MODE_INPUT(GPIOC_PIN11) | PIN_MODE_INPUT(GPIOC_PIN12) | PIN_MODE_INPUT(GPIOC_PIN13) | PIN_MODE_INPUT(GPIOC_OSC32_IN) | PIN_MODE_INPUT(GPIOC_OSC32_OUT))
+#define VAL_GPIOC_OTYPER (PIN_OTYPE_PUSHPULL(GPIOC_MEMS_CS) | PIN_OTYPE_PUSHPULL(GPIOC_PIN1) | PIN_OTYPE_PUSHPULL(GPIOC_PIN2) | PIN_OTYPE_PUSHPULL(GPIOC_PIN3) | PIN_OTYPE_PUSHPULL(GPIOC_PIN4) | PIN_OTYPE_PUSHPULL(GPIOC_PIN5) | PIN_OTYPE_PUSHPULL(GPIOC_LED_RED) | PIN_OTYPE_PUSHPULL(GPIOC_LED_BLUE) | PIN_OTYPE_PUSHPULL(GPIOC_LED_ORANGE) | PIN_OTYPE_PUSHPULL(GPIOC_LED_GREEN) | PIN_OTYPE_PUSHPULL(GPIOC_PIN10) | PIN_OTYPE_PUSHPULL(GPIOC_PIN11) | PIN_OTYPE_PUSHPULL(GPIOC_PIN12) | PIN_OTYPE_PUSHPULL(GPIOC_PIN13) | PIN_OTYPE_PUSHPULL(GPIOC_OSC32_IN) | PIN_OTYPE_PUSHPULL(GPIOC_OSC32_OUT))
+#define VAL_GPIOC_OSPEEDR (PIN_OSPEED_HIGH(GPIOC_MEMS_CS) | PIN_OSPEED_VERYLOW(GPIOC_PIN1) | PIN_OSPEED_VERYLOW(GPIOC_PIN2) | PIN_OSPEED_VERYLOW(GPIOC_PIN3) | PIN_OSPEED_VERYLOW(GPIOC_PIN4) | PIN_OSPEED_VERYLOW(GPIOC_PIN5) | PIN_OSPEED_HIGH(GPIOC_LED_RED) | PIN_OSPEED_HIGH(GPIOC_LED_BLUE) | PIN_OSPEED_HIGH(GPIOC_LED_ORANGE) | PIN_OSPEED_HIGH(GPIOC_LED_GREEN) | PIN_OSPEED_VERYLOW(GPIOC_PIN10) | PIN_OSPEED_VERYLOW(GPIOC_PIN11) | PIN_OSPEED_VERYLOW(GPIOC_PIN12) | PIN_OSPEED_VERYLOW(GPIOC_PIN13) | PIN_OSPEED_HIGH(GPIOC_OSC32_IN) | PIN_OSPEED_HIGH(GPIOC_OSC32_OUT))
+#define VAL_GPIOC_PUPDR (PIN_PUPDR_FLOATING(GPIOC_MEMS_CS) | PIN_PUPDR_PULLUP(GPIOC_PIN1) | PIN_PUPDR_PULLUP(GPIOC_PIN2) | PIN_PUPDR_PULLUP(GPIOC_PIN3) | PIN_PUPDR_PULLUP(GPIOC_PIN4) | PIN_PUPDR_PULLUP(GPIOC_PIN5) | PIN_PUPDR_FLOATING(GPIOC_LED_RED) | PIN_PUPDR_FLOATING(GPIOC_LED_BLUE) | PIN_PUPDR_FLOATING(GPIOC_LED_ORANGE) | PIN_PUPDR_FLOATING(GPIOC_LED_GREEN) | PIN_PUPDR_PULLUP(GPIOC_PIN10) | PIN_PUPDR_PULLUP(GPIOC_PIN11) | PIN_PUPDR_PULLUP(GPIOC_PIN12) | PIN_PUPDR_PULLUP(GPIOC_PIN13) | PIN_PUPDR_FLOATING(GPIOC_OSC32_IN) | PIN_PUPDR_FLOATING(GPIOC_OSC32_OUT))
+#define VAL_GPIOC_ODR (PIN_ODR_HIGH(GPIOC_MEMS_CS) | PIN_ODR_HIGH(GPIOC_PIN1) | PIN_ODR_HIGH(GPIOC_PIN2) | PIN_ODR_HIGH(GPIOC_PIN3) | PIN_ODR_HIGH(GPIOC_PIN4) | PIN_ODR_HIGH(GPIOC_PIN5) | PIN_ODR_LOW(GPIOC_LED_RED) | PIN_ODR_LOW(GPIOC_LED_BLUE) | PIN_ODR_LOW(GPIOC_LED_ORANGE) | PIN_ODR_LOW(GPIOC_LED_GREEN) | PIN_ODR_HIGH(GPIOC_PIN10) | PIN_ODR_HIGH(GPIOC_PIN11) | PIN_ODR_HIGH(GPIOC_PIN12) | PIN_ODR_HIGH(GPIOC_PIN13) | PIN_ODR_HIGH(GPIOC_OSC32_IN) | PIN_ODR_HIGH(GPIOC_OSC32_OUT))
+#define VAL_GPIOC_AFRL (PIN_AFIO_AF(GPIOC_MEMS_CS, 0U) | PIN_AFIO_AF(GPIOC_PIN1, 0U) | PIN_AFIO_AF(GPIOC_PIN2, 0U) | PIN_AFIO_AF(GPIOC_PIN3, 0U) | PIN_AFIO_AF(GPIOC_PIN4, 0U) | PIN_AFIO_AF(GPIOC_PIN5, 0U) | PIN_AFIO_AF(GPIOC_LED_RED, 0U) | PIN_AFIO_AF(GPIOC_LED_BLUE, 0U))
+#define VAL_GPIOC_AFRH (PIN_AFIO_AF(GPIOC_LED_ORANGE, 0U) | PIN_AFIO_AF(GPIOC_LED_GREEN, 0U) | PIN_AFIO_AF(GPIOC_PIN10, 0U) | PIN_AFIO_AF(GPIOC_PIN11, 0U) | PIN_AFIO_AF(GPIOC_PIN12, 0U) | PIN_AFIO_AF(GPIOC_PIN13, 0U) | PIN_AFIO_AF(GPIOC_OSC32_IN, 0U) | PIN_AFIO_AF(GPIOC_OSC32_OUT, 0U))
+
+/*
+ * GPIOD setup:
+ *
+ * PD0  - PIN0                      (input pullup).
+ * PD1  - PIN1                      (input pullup).
+ * PD2  - PIN2                      (input pullup).
+ * PD3  - PIN3                      (input pullup).
+ * PD4  - PIN4                      (input pullup).
+ * PD5  - PIN5                      (input pullup).
+ * PD6  - PIN6                      (input pullup).
+ * PD7  - PIN7                      (input pullup).
+ * PD8  - PIN8                      (input pullup).
+ * PD9  - PIN9                      (input pullup).
+ * PD10 - PIN10                     (input pullup).
+ * PD11 - PIN11                     (input pullup).
+ * PD12 - PIN12                     (input pullup).
+ * PD13 - PIN13                     (input pullup).
+ * PD14 - PIN14                     (input pullup).
+ * PD15 - PIN15                     (input pullup).
+ */
+#define VAL_GPIOD_MODER (PIN_MODE_INPUT(GPIOD_PIN0) | PIN_MODE_INPUT(GPIOD_PIN1) | PIN_MODE_INPUT(GPIOD_PIN2) | PIN_MODE_INPUT(GPIOD_PIN3) | PIN_MODE_INPUT(GPIOD_PIN4) | PIN_MODE_INPUT(GPIOD_PIN5) | PIN_MODE_INPUT(GPIOD_PIN6) | PIN_MODE_INPUT(GPIOD_PIN7) | PIN_MODE_INPUT(GPIOD_PIN8) | PIN_MODE_INPUT(GPIOD_PIN9) | PIN_MODE_INPUT(GPIOD_PIN10) | PIN_MODE_INPUT(GPIOD_PIN11) | PIN_MODE_INPUT(GPIOD_PIN12) | PIN_MODE_INPUT(GPIOD_PIN13) | PIN_MODE_INPUT(GPIOD_PIN14) | PIN_MODE_INPUT(GPIOD_PIN15))
+#define VAL_GPIOD_OTYPER (PIN_OTYPE_PUSHPULL(GPIOD_PIN0) | PIN_OTYPE_PUSHPULL(GPIOD_PIN1) | PIN_OTYPE_PUSHPULL(GPIOD_PIN2) | PIN_OTYPE_PUSHPULL(GPIOD_PIN3) | PIN_OTYPE_PUSHPULL(GPIOD_PIN4) | PIN_OTYPE_PUSHPULL(GPIOD_PIN5) | PIN_OTYPE_PUSHPULL(GPIOD_PIN6) | PIN_OTYPE_PUSHPULL(GPIOD_PIN7) | PIN_OTYPE_PUSHPULL(GPIOD_PIN8) | PIN_OTYPE_PUSHPULL(GPIOD_PIN9) | PIN_OTYPE_PUSHPULL(GPIOD_PIN10) | PIN_OTYPE_PUSHPULL(GPIOD_PIN11) | PIN_OTYPE_PUSHPULL(GPIOD_PIN12) | PIN_OTYPE_PUSHPULL(GPIOD_PIN13) | PIN_OTYPE_PUSHPULL(GPIOD_PIN14) | PIN_OTYPE_PUSHPULL(GPIOD_PIN15))
+#define VAL_GPIOD_OSPEEDR (PIN_OSPEED_VERYLOW(GPIOD_PIN0) | PIN_OSPEED_VERYLOW(GPIOD_PIN1) | PIN_OSPEED_VERYLOW(GPIOD_PIN2) | PIN_OSPEED_VERYLOW(GPIOD_PIN3) | PIN_OSPEED_VERYLOW(GPIOD_PIN4) | PIN_OSPEED_VERYLOW(GPIOD_PIN5) | PIN_OSPEED_VERYLOW(GPIOD_PIN6) | PIN_OSPEED_VERYLOW(GPIOD_PIN7) | PIN_OSPEED_VERYLOW(GPIOD_PIN8) | PIN_OSPEED_VERYLOW(GPIOD_PIN9) | PIN_OSPEED_VERYLOW(GPIOD_PIN10) | PIN_OSPEED_VERYLOW(GPIOD_PIN11) | PIN_OSPEED_VERYLOW(GPIOD_PIN12) | PIN_OSPEED_VERYLOW(GPIOD_PIN13) | PIN_OSPEED_VERYLOW(GPIOD_PIN14) | PIN_OSPEED_VERYLOW(GPIOD_PIN15))
+#define VAL_GPIOD_PUPDR (PIN_PUPDR_PULLUP(GPIOD_PIN0) | PIN_PUPDR_PULLUP(GPIOD_PIN1) | PIN_PUPDR_PULLUP(GPIOD_PIN2) | PIN_PUPDR_PULLUP(GPIOD_PIN3) | PIN_PUPDR_PULLUP(GPIOD_PIN4) | PIN_PUPDR_PULLUP(GPIOD_PIN5) | PIN_PUPDR_PULLUP(GPIOD_PIN6) | PIN_PUPDR_PULLUP(GPIOD_PIN7) | PIN_PUPDR_PULLUP(GPIOD_PIN8) | PIN_PUPDR_PULLUP(GPIOD_PIN9) | PIN_PUPDR_PULLUP(GPIOD_PIN10) | PIN_PUPDR_PULLUP(GPIOD_PIN11) | PIN_PUPDR_PULLUP(GPIOD_PIN12) | PIN_PUPDR_PULLUP(GPIOD_PIN13) | PIN_PUPDR_PULLUP(GPIOD_PIN14) | PIN_PUPDR_PULLUP(GPIOD_PIN15))
+#define VAL_GPIOD_ODR (PIN_ODR_HIGH(GPIOD_PIN0) | PIN_ODR_HIGH(GPIOD_PIN1) | PIN_ODR_HIGH(GPIOD_PIN2) | PIN_ODR_HIGH(GPIOD_PIN3) | PIN_ODR_HIGH(GPIOD_PIN4) | PIN_ODR_HIGH(GPIOD_PIN5) | PIN_ODR_HIGH(GPIOD_PIN6) | PIN_ODR_HIGH(GPIOD_PIN7) | PIN_ODR_HIGH(GPIOD_PIN8) | PIN_ODR_HIGH(GPIOD_PIN9) | PIN_ODR_HIGH(GPIOD_PIN10) | PIN_ODR_HIGH(GPIOD_PIN11) | PIN_ODR_HIGH(GPIOD_PIN12) | PIN_ODR_HIGH(GPIOD_PIN13) | PIN_ODR_HIGH(GPIOD_PIN14) | PIN_ODR_HIGH(GPIOD_PIN15))
+#define VAL_GPIOD_AFRL (PIN_AFIO_AF(GPIOD_PIN0, 0U) | PIN_AFIO_AF(GPIOD_PIN1, 0U) | PIN_AFIO_AF(GPIOD_PIN2, 0U) | PIN_AFIO_AF(GPIOD_PIN3, 0U) | PIN_AFIO_AF(GPIOD_PIN4, 0U) | PIN_AFIO_AF(GPIOD_PIN5, 0U) | PIN_AFIO_AF(GPIOD_PIN6, 0U) | PIN_AFIO_AF(GPIOD_PIN7, 0U))
+#define VAL_GPIOD_AFRH (PIN_AFIO_AF(GPIOD_PIN8, 0U) | PIN_AFIO_AF(GPIOD_PIN9, 0U) | PIN_AFIO_AF(GPIOD_PIN10, 0U) | PIN_AFIO_AF(GPIOD_PIN11, 0U) | PIN_AFIO_AF(GPIOD_PIN12, 0U) | PIN_AFIO_AF(GPIOD_PIN13, 0U) | PIN_AFIO_AF(GPIOD_PIN14, 0U) | PIN_AFIO_AF(GPIOD_PIN15, 0U))
+
+/*
+ * GPIOE setup:
+ *
+ * PE0  - PIN0                      (input pullup).
+ * PE1  - PIN1                      (input pullup).
+ * PE2  - PIN2                      (input pullup).
+ * PE3  - PIN3                      (input pullup).
+ * PE4  - PIN4                      (input pullup).
+ * PE5  - PIN5                      (input pullup).
+ * PE6  - PIN6                      (input pullup).
+ * PE7  - PIN7                      (input pullup).
+ * PE8  - PIN8                      (input pullup).
+ * PE9  - PIN9                      (input pullup).
+ * PE10 - PIN10                     (input pullup).
+ * PE11 - PIN11                     (input pullup).
+ * PE12 - PIN12                     (input pullup).
+ * PE13 - PIN13                     (input pullup).
+ * PE14 - PIN14                     (input pullup).
+ * PE15 - PIN15                     (input pullup).
+ */
+#define VAL_GPIOE_MODER (PIN_MODE_INPUT(GPIOE_PIN0) | PIN_MODE_INPUT(GPIOE_PIN1) | PIN_MODE_INPUT(GPIOE_PIN2) | PIN_MODE_INPUT(GPIOE_PIN3) | PIN_MODE_INPUT(GPIOE_PIN4) | PIN_MODE_INPUT(GPIOE_PIN5) | PIN_MODE_INPUT(GPIOE_PIN6) | PIN_MODE_INPUT(GPIOE_PIN7) | PIN_MODE_INPUT(GPIOE_PIN8) | PIN_MODE_INPUT(GPIOE_PIN9) | PIN_MODE_INPUT(GPIOE_PIN10) | PIN_MODE_INPUT(GPIOE_PIN11) | PIN_MODE_INPUT(GPIOE_PIN12) | PIN_MODE_INPUT(GPIOE_PIN13) | PIN_MODE_INPUT(GPIOE_PIN14) | PIN_MODE_INPUT(GPIOE_PIN15))
+#define VAL_GPIOE_OTYPER (PIN_OTYPE_PUSHPULL(GPIOE_PIN0) | PIN_OTYPE_PUSHPULL(GPIOE_PIN1) | PIN_OTYPE_PUSHPULL(GPIOE_PIN2) | PIN_OTYPE_PUSHPULL(GPIOE_PIN3) | PIN_OTYPE_PUSHPULL(GPIOE_PIN4) | PIN_OTYPE_PUSHPULL(GPIOE_PIN5) | PIN_OTYPE_PUSHPULL(GPIOE_PIN6) | PIN_OTYPE_PUSHPULL(GPIOE_PIN7) | PIN_OTYPE_PUSHPULL(GPIOE_PIN8) | PIN_OTYPE_PUSHPULL(GPIOE_PIN9) | PIN_OTYPE_PUSHPULL(GPIOE_PIN10) | PIN_OTYPE_PUSHPULL(GPIOE_PIN11) | PIN_OTYPE_PUSHPULL(GPIOE_PIN12) | PIN_OTYPE_PUSHPULL(GPIOE_PIN13) | PIN_OTYPE_PUSHPULL(GPIOE_PIN14) | PIN_OTYPE_PUSHPULL(GPIOE_PIN15))
+#define VAL_GPIOE_OSPEEDR (PIN_OSPEED_VERYLOW(GPIOE_PIN0) | PIN_OSPEED_VERYLOW(GPIOE_PIN1) | PIN_OSPEED_VERYLOW(GPIOE_PIN2) | PIN_OSPEED_VERYLOW(GPIOE_PIN3) | PIN_OSPEED_VERYLOW(GPIOE_PIN4) | PIN_OSPEED_VERYLOW(GPIOE_PIN5) | PIN_OSPEED_VERYLOW(GPIOE_PIN6) | PIN_OSPEED_VERYLOW(GPIOE_PIN7) | PIN_OSPEED_VERYLOW(GPIOE_PIN8) | PIN_OSPEED_VERYLOW(GPIOE_PIN9) | PIN_OSPEED_VERYLOW(GPIOE_PIN10) | PIN_OSPEED_VERYLOW(GPIOE_PIN11) | PIN_OSPEED_VERYLOW(GPIOE_PIN12) | PIN_OSPEED_VERYLOW(GPIOE_PIN13) | PIN_OSPEED_VERYLOW(GPIOE_PIN14) | PIN_OSPEED_VERYLOW(GPIOE_PIN15))
+#define VAL_GPIOE_PUPDR (PIN_PUPDR_PULLUP(GPIOE_PIN0) | PIN_PUPDR_PULLUP(GPIOE_PIN1) | PIN_PUPDR_PULLUP(GPIOE_PIN2) | PIN_PUPDR_PULLUP(GPIOE_PIN3) | PIN_PUPDR_PULLUP(GPIOE_PIN4) | PIN_PUPDR_PULLUP(GPIOE_PIN5) | PIN_PUPDR_PULLUP(GPIOE_PIN6) | PIN_PUPDR_PULLUP(GPIOE_PIN7) | PIN_PUPDR_PULLUP(GPIOE_PIN8) | PIN_PUPDR_PULLUP(GPIOE_PIN9) | PIN_PUPDR_PULLUP(GPIOE_PIN10) | PIN_PUPDR_PULLUP(GPIOE_PIN11) | PIN_PUPDR_PULLUP(GPIOE_PIN12) | PIN_PUPDR_PULLUP(GPIOE_PIN13) | PIN_PUPDR_PULLUP(GPIOE_PIN14) | PIN_PUPDR_PULLUP(GPIOE_PIN15))
+#define VAL_GPIOE_ODR (PIN_ODR_HIGH(GPIOE_PIN0) | PIN_ODR_HIGH(GPIOE_PIN1) | PIN_ODR_HIGH(GPIOE_PIN2) | PIN_ODR_HIGH(GPIOE_PIN3) | PIN_ODR_HIGH(GPIOE_PIN4) | PIN_ODR_HIGH(GPIOE_PIN5) | PIN_ODR_HIGH(GPIOE_PIN6) | PIN_ODR_HIGH(GPIOE_PIN7) | PIN_ODR_HIGH(GPIOE_PIN8) | PIN_ODR_HIGH(GPIOE_PIN9) | PIN_ODR_HIGH(GPIOE_PIN10) | PIN_ODR_HIGH(GPIOE_PIN11) | PIN_ODR_HIGH(GPIOE_PIN12) | PIN_ODR_HIGH(GPIOE_PIN13) | PIN_ODR_HIGH(GPIOE_PIN14) | PIN_ODR_HIGH(GPIOE_PIN15))
+#define VAL_GPIOE_AFRL (PIN_AFIO_AF(GPIOE_PIN0, 0U) | PIN_AFIO_AF(GPIOE_PIN1, 0U) | PIN_AFIO_AF(GPIOE_PIN2, 0U) | PIN_AFIO_AF(GPIOE_PIN3, 0U) | PIN_AFIO_AF(GPIOE_PIN4, 0U) | PIN_AFIO_AF(GPIOE_PIN5, 0U) | PIN_AFIO_AF(GPIOE_PIN6, 0U) | PIN_AFIO_AF(GPIOE_PIN7, 0U))
+#define VAL_GPIOE_AFRH (PIN_AFIO_AF(GPIOE_PIN8, 0U) | PIN_AFIO_AF(GPIOE_PIN9, 0U) | PIN_AFIO_AF(GPIOE_PIN10, 0U) | PIN_AFIO_AF(GPIOE_PIN11, 0U) | PIN_AFIO_AF(GPIOE_PIN12, 0U) | PIN_AFIO_AF(GPIOE_PIN13, 0U) | PIN_AFIO_AF(GPIOE_PIN14, 0U) | PIN_AFIO_AF(GPIOE_PIN15, 0U))
+
+/*
+ * GPIOF setup:
+ *
+ * PF0  - OSC_IN                    (input floating).
+ * PF1  - OSC_OUT                   (input floating).
+ * PF2  - PIN2                      (input pullup).
+ * PF3  - PIN3                      (input pullup).
+ * PF4  - PIN4                      (input pullup).
+ * PF5  - PIN5                      (input pullup).
+ * PF6  - PIN6                      (input pullup).
+ * PF7  - PIN7                      (input pullup).
+ * PF8  - PIN8                      (input pullup).
+ * PF9  - PIN9                      (input pullup).
+ * PF10 - PIN10                     (input pullup).
+ * PF11 - PIN11                     (input pullup).
+ * PF12 - PIN12                     (input pullup).
+ * PF13 - PIN13                     (input pullup).
+ * PF14 - PIN14                     (input pullup).
+ * PF15 - PIN15                     (input pullup).
+ */
+#define VAL_GPIOF_MODER (PIN_MODE_INPUT(GPIOF_OSC_IN) | PIN_MODE_INPUT(GPIOF_OSC_OUT) | PIN_MODE_INPUT(GPIOF_PIN2) | PIN_MODE_INPUT(GPIOF_PIN3) | PIN_MODE_INPUT(GPIOF_PIN4) | PIN_MODE_INPUT(GPIOF_PIN5) | PIN_MODE_INPUT(GPIOF_PIN6) | PIN_MODE_INPUT(GPIOF_PIN7) | PIN_MODE_INPUT(GPIOF_PIN8) | PIN_MODE_INPUT(GPIOF_PIN9) | PIN_MODE_INPUT(GPIOF_PIN10) | PIN_MODE_INPUT(GPIOF_PIN11) | PIN_MODE_INPUT(GPIOF_PIN12) | PIN_MODE_INPUT(GPIOF_PIN13) | PIN_MODE_INPUT(GPIOF_PIN14) | PIN_MODE_INPUT(GPIOF_PIN15))
+#define VAL_GPIOF_OTYPER (PIN_OTYPE_PUSHPULL(GPIOF_OSC_IN) | PIN_OTYPE_PUSHPULL(GPIOF_OSC_OUT) | PIN_OTYPE_PUSHPULL(GPIOF_PIN2) | PIN_OTYPE_PUSHPULL(GPIOF_PIN3) | PIN_OTYPE_PUSHPULL(GPIOF_PIN4) | PIN_OTYPE_PUSHPULL(GPIOF_PIN5) | PIN_OTYPE_PUSHPULL(GPIOF_PIN6) | PIN_OTYPE_PUSHPULL(GPIOF_PIN7) | PIN_OTYPE_PUSHPULL(GPIOF_PIN8) | PIN_OTYPE_PUSHPULL(GPIOF_PIN9) | PIN_OTYPE_PUSHPULL(GPIOF_PIN10) | PIN_OTYPE_PUSHPULL(GPIOF_PIN11) | PIN_OTYPE_PUSHPULL(GPIOF_PIN12) | PIN_OTYPE_PUSHPULL(GPIOF_PIN13) | PIN_OTYPE_PUSHPULL(GPIOF_PIN14) | PIN_OTYPE_PUSHPULL(GPIOF_PIN15))
+#define VAL_GPIOF_OSPEEDR (PIN_OSPEED_VERYLOW(GPIOF_OSC_IN) | PIN_OSPEED_VERYLOW(GPIOF_OSC_OUT) | PIN_OSPEED_VERYLOW(GPIOF_PIN2) | PIN_OSPEED_VERYLOW(GPIOF_PIN3) | PIN_OSPEED_VERYLOW(GPIOF_PIN4) | PIN_OSPEED_VERYLOW(GPIOF_PIN5) | PIN_OSPEED_VERYLOW(GPIOF_PIN6) | PIN_OSPEED_VERYLOW(GPIOF_PIN7) | PIN_OSPEED_VERYLOW(GPIOF_PIN8) | PIN_OSPEED_VERYLOW(GPIOF_PIN9) | PIN_OSPEED_VERYLOW(GPIOF_PIN10) | PIN_OSPEED_VERYLOW(GPIOF_PIN11) | PIN_OSPEED_VERYLOW(GPIOF_PIN12) | PIN_OSPEED_VERYLOW(GPIOF_PIN13) | PIN_OSPEED_VERYLOW(GPIOF_PIN14) | PIN_OSPEED_VERYLOW(GPIOF_PIN15))
+#define VAL_GPIOF_PUPDR (PIN_PUPDR_FLOATING(GPIOF_OSC_IN) | PIN_PUPDR_FLOATING(GPIOF_OSC_OUT) | PIN_PUPDR_PULLUP(GPIOF_PIN2) | PIN_PUPDR_PULLUP(GPIOF_PIN3) | PIN_PUPDR_PULLUP(GPIOF_PIN4) | PIN_PUPDR_PULLUP(GPIOF_PIN5) | PIN_PUPDR_PULLUP(GPIOF_PIN6) | PIN_PUPDR_PULLUP(GPIOF_PIN7) | PIN_PUPDR_PULLUP(GPIOF_PIN8) | PIN_PUPDR_PULLUP(GPIOF_PIN9) | PIN_PUPDR_PULLUP(GPIOF_PIN10) | PIN_PUPDR_PULLUP(GPIOF_PIN11) | PIN_PUPDR_PULLUP(GPIOF_PIN12) | PIN_PUPDR_PULLUP(GPIOF_PIN13) | PIN_PUPDR_PULLUP(GPIOF_PIN14) | PIN_PUPDR_PULLUP(GPIOF_PIN15))
+#define VAL_GPIOF_ODR (PIN_ODR_HIGH(GPIOF_OSC_IN) | PIN_ODR_HIGH(GPIOF_OSC_OUT) | PIN_ODR_HIGH(GPIOF_PIN2) | PIN_ODR_HIGH(GPIOF_PIN3) | PIN_ODR_HIGH(GPIOF_PIN4) | PIN_ODR_HIGH(GPIOF_PIN5) | PIN_ODR_HIGH(GPIOF_PIN6) | PIN_ODR_HIGH(GPIOF_PIN7) | PIN_ODR_HIGH(GPIOF_PIN8) | PIN_ODR_HIGH(GPIOF_PIN9) | PIN_ODR_HIGH(GPIOF_PIN10) | PIN_ODR_HIGH(GPIOF_PIN11) | PIN_ODR_HIGH(GPIOF_PIN12) | PIN_ODR_HIGH(GPIOF_PIN13) | PIN_ODR_HIGH(GPIOF_PIN14) | PIN_ODR_HIGH(GPIOF_PIN15))
+#define VAL_GPIOF_AFRL (PIN_AFIO_AF(GPIOF_OSC_IN, 0U) | PIN_AFIO_AF(GPIOF_OSC_OUT, 0U) | PIN_AFIO_AF(GPIOF_PIN2, 0U) | PIN_AFIO_AF(GPIOF_PIN3, 0U) | PIN_AFIO_AF(GPIOF_PIN4, 0U) | PIN_AFIO_AF(GPIOF_PIN5, 0U) | PIN_AFIO_AF(GPIOF_PIN6, 0U) | PIN_AFIO_AF(GPIOF_PIN7, 0U))
+#define VAL_GPIOF_AFRH (PIN_AFIO_AF(GPIOF_PIN8, 0U) | PIN_AFIO_AF(GPIOF_PIN9, 0U) | PIN_AFIO_AF(GPIOF_PIN10, 0U) | PIN_AFIO_AF(GPIOF_PIN11, 0U) | PIN_AFIO_AF(GPIOF_PIN12, 0U) | PIN_AFIO_AF(GPIOF_PIN13, 0U) | PIN_AFIO_AF(GPIOF_PIN14, 0U) | PIN_AFIO_AF(GPIOF_PIN15, 0U))
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if !defined(_FROM_ASM_)
+#    ifdef __cplusplus
+extern "C" {
+#    endif
+void boardInit(void);
+#    ifdef __cplusplus
+}
+#    endif
+#endif /* _FROM_ASM_ */
+
+#endif /* BOARD_H */

drivers/boards/GENERIC_STM32_F072XB/board.mk

@@ -0,0 +1,9 @@
+# List of all the board related files.
+BOARDSRC = $(BOARD_PATH)/boards/GENERIC_STM32_F072XB/board.c
+
+# Required include directories
+BOARDINC = $(BOARD_PATH)/boards/GENERIC_STM32_F072XB
+
+# Shared variables
+ALLCSRC += $(BOARDSRC)
+ALLINC  += $(BOARDINC)

drivers/boards/GENERIC_STM32_F072XB/bootloader_defs.h

@@ -0,0 +1,7 @@
+/* Address for jumping to bootloader on STM32 chips. */
+/* It is chip dependent, the correct number can be looked up here (page 175):
+ * http://www.st.com/web/en/resource/technical/document/application_note/CD00167594.pdf
+ * This also requires a patch to chibios:
+ *  <tmk_dir>/tmk_core/tool/chibios/ch-bootloader-jump.patch
+ */
+#define STM32_BOOTLOADER_ADDRESS 0x1FFFC800

drivers/boards/GENERIC_STM32_F072XB/cfg/board.chcfg

@@ -0,0 +1,703 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- STM32F0xx board Template -->
+<board
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:noNamespaceSchemaLocation="http://www.chibios.org/xml/schema/boards/stm32f0xx_board.xsd">
+  <configuration_settings>
+    <templates_path>resources/gencfg/processors/boards/stm32f0xx/templates</templates_path>
+    <output_path>..</output_path>
+    <hal_version>5.0.x</hal_version>
+  </configuration_settings>
+  <board_name>ST STM32F072B-Discovery</board_name>
+  <board_id>ST_STM32F072B_DISCOVERY</board_id>
+  <board_functions></board_functions>
+  <subtype>STM32F072xB</subtype>
+  <clocks HSEFrequency="0" HSEBypass="true" LSEFrequency="0"
+  	LSEBypass="false" LSEDrive="3 High Drive (default)" />
+  <ports>
+    <GPIOA>
+      <pin0
+        ID="BUTTON"
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin1
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin2
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin3
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin4
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin5
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin6
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin7
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin8
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin9
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin10
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin11
+        ID="USB_DM"
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin12
+        ID="USB_DP"
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin13
+        ID="SWDIO"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Alternate"
+        Alternate="0" />
+      <pin14
+        ID="SWCLK"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="PullDown"
+        Level="High"
+        Mode="Alternate"
+        Alternate="0" />
+      <pin15
+        ID=""
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+    </GPIOA>
+    <GPIOB>
+      <pin0
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin1
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin2
+        ID=""
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin3
+        ID=""
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin4
+        ID=""
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin5
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin6
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin7
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin8
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin9
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin10
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin11
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin12
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin13
+        ID="SPI2_SCK"
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Alternate"
+        Alternate="0" />
+      <pin14
+        ID="SPI2_MISO"
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Alternate"
+        Alternate="0" />
+      <pin15
+        ID="SPI2_MOSI"
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Alternate"
+        Alternate="0" />
+    </GPIOB>
+    <GPIOC>
+      <pin0
+        ID="MEMS_CS"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Output"
+        Alternate="0" />
+      <pin1
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin2
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin3
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin4
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin5
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin6
+        ID="LED_RED"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="Floating"
+        Level="Low"
+        Mode="Output"
+        Alternate="0" />
+      <pin7
+        ID="LED_BLUE"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="Floating"
+        Level="Low"
+        Mode="Output"
+        Alternate="0" />
+      <pin8
+        ID="LED_ORANGE"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="Floating"
+        Level="Low"
+        Mode="Output"
+        Alternate="0" ></pin8>
+      <pin9
+        ID="LED_GREEN"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="Floating"
+        Level="Low"
+        Mode="Output"
+        Alternate="0" />
+      <pin10
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin11
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin12
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin13
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin14
+        ID="OSC32_IN"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin15
+        ID="OSC32_OUT"
+        Type="PushPull"
+        Speed="Maximum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+    </GPIOC>
+    <GPIOD>
+      <pin0
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin1
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin2
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin3
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin4
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin5
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin6
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin7
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin8
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin9
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin10
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin11
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin12
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin13
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin14
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin15
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+    </GPIOD>
+    <GPIOE>
+    	<pin0 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin1 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin2 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin3 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin4 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin5 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin6 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin7 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin8 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin9 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin10 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin11 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin12 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin13 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin14 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    	<pin15 ID="" Type="PushPull" Speed="Minimum" Resistor="PullUp"
+    		Level="High" Mode="Input" Alternate="0" />
+    </GPIOE>
+    <GPIOF>
+      <pin0
+        ID="OSC_IN"
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin1
+        ID="OSC_OUT"
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="Floating"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin2
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin3
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin4
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin5
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin6
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin7
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin8
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin9
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin10
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin11
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin12
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin13
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin14
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+      <pin15
+        ID=""
+        Type="PushPull"
+        Speed="Minimum"
+        Resistor="PullUp"
+        Level="High"
+        Mode="Input"
+        Alternate="0" />
+    </GPIOF>
+  </ports>
+</board>

drivers/boards/GENERIC_STM32_F072XB/cfg/board.fmpp

@@ -0,0 +1,15 @@
+sourceRoot: ../../../../../tools/ftl/processors/boards/stm32f0xx/templates
+outputRoot: ..
+dataRoot: .
+
+freemarkerLinks: {
+    lib: ../../../../../tools/ftl/libs
+}
+
+data : {
+  doc1:xml (
+    board.chcfg
+    {
+    }
+  )
+}

drivers/boards/GENERIC_STM32_F303XC/board.c

@@ -14,44 +14,172 @@
     limitations under the License.
 */
 
-#include "hal.h"
-
-#if HAL_USE_PAL || defined(__DOXYGEN__)
-/**
- * @brief   PAL setup.
- * @details Digital I/O ports static configuration as defined in @p board.h.
- *          This variable is used by the HAL when initializing the PAL driver.
+/*
+ * This file has been automatically generated using ChibiStudio board
+ * generator plugin. Do not edit manually.
  */
-const PALConfig pal_default_config = {
-#    if STM32_HAS_GPIOA
-    {VAL_GPIOA_MODER, VAL_GPIOA_OTYPER, VAL_GPIOA_OSPEEDR, VAL_GPIOA_PUPDR, VAL_GPIOA_ODR, VAL_GPIOA_AFRL, VAL_GPIOA_AFRH},
-#    endif
-#    if STM32_HAS_GPIOB
-    {VAL_GPIOB_MODER, VAL_GPIOB_OTYPER, VAL_GPIOB_OSPEEDR, VAL_GPIOB_PUPDR, VAL_GPIOB_ODR, VAL_GPIOB_AFRL, VAL_GPIOB_AFRH},
-#    endif
-#    if STM32_HAS_GPIOC
-    {VAL_GPIOC_MODER, VAL_GPIOC_OTYPER, VAL_GPIOC_OSPEEDR, VAL_GPIOC_PUPDR, VAL_GPIOC_ODR, VAL_GPIOC_AFRL, VAL_GPIOC_AFRH},
-#    endif
-#    if STM32_HAS_GPIOD
-    {VAL_GPIOD_MODER, VAL_GPIOD_OTYPER, VAL_GPIOD_OSPEEDR, VAL_GPIOD_PUPDR, VAL_GPIOD_ODR, VAL_GPIOD_AFRL, VAL_GPIOD_AFRH},
-#    endif
-#    if STM32_HAS_GPIOE
-    {VAL_GPIOE_MODER, VAL_GPIOE_OTYPER, VAL_GPIOE_OSPEEDR, VAL_GPIOE_PUPDR, VAL_GPIOE_ODR, VAL_GPIOE_AFRL, VAL_GPIOE_AFRH},
-#    endif
-#    if STM32_HAS_GPIOF
-    {VAL_GPIOF_MODER, VAL_GPIOF_OTYPER, VAL_GPIOF_OSPEEDR, VAL_GPIOF_PUPDR, VAL_GPIOF_ODR, VAL_GPIOF_AFRL, VAL_GPIOF_AFRH},
-#    endif
-#    if STM32_HAS_GPIOG
-    {VAL_GPIOG_MODER, VAL_GPIOG_OTYPER, VAL_GPIOG_OSPEEDR, VAL_GPIOG_PUPDR, VAL_GPIOG_ODR, VAL_GPIOG_AFRL, VAL_GPIOG_AFRH},
-#    endif
-#    if STM32_HAS_GPIOH
-    {VAL_GPIOH_MODER, VAL_GPIOH_OTYPER, VAL_GPIOH_OSPEEDR, VAL_GPIOH_PUPDR, VAL_GPIOH_ODR, VAL_GPIOH_AFRL, VAL_GPIOH_AFRH},
-#    endif
-#    if STM32_HAS_GPIOI
-    {VAL_GPIOI_MODER, VAL_GPIOI_OTYPER, VAL_GPIOI_OSPEEDR, VAL_GPIOI_PUPDR, VAL_GPIOI_ODR, VAL_GPIOI_AFRL, VAL_GPIOI_AFRH}
-#    endif
-};
+
+#include "hal.h"
+#include "stm32_gpio.h"
+
+/*===========================================================================*/
+/* Driver local definitions.                                                 */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Type of STM32 GPIO port setup.
+ */
+typedef struct {
+    uint32_t moder;
+    uint32_t otyper;
+    uint32_t ospeedr;
+    uint32_t pupdr;
+    uint32_t odr;
+    uint32_t afrl;
+    uint32_t afrh;
+} gpio_setup_t;
+
+/**
+ * @brief   Type of STM32 GPIO initialization data.
+ */
+typedef struct {
+#if STM32_HAS_GPIOA || defined(__DOXYGEN__)
+    gpio_setup_t PAData;
 #endif
+#if STM32_HAS_GPIOB || defined(__DOXYGEN__)
+    gpio_setup_t PBData;
+#endif
+#if STM32_HAS_GPIOC || defined(__DOXYGEN__)
+    gpio_setup_t PCData;
+#endif
+#if STM32_HAS_GPIOD || defined(__DOXYGEN__)
+    gpio_setup_t PDData;
+#endif
+#if STM32_HAS_GPIOE || defined(__DOXYGEN__)
+    gpio_setup_t PEData;
+#endif
+#if STM32_HAS_GPIOF || defined(__DOXYGEN__)
+    gpio_setup_t PFData;
+#endif
+#if STM32_HAS_GPIOG || defined(__DOXYGEN__)
+    gpio_setup_t PGData;
+#endif
+#if STM32_HAS_GPIOH || defined(__DOXYGEN__)
+    gpio_setup_t PHData;
+#endif
+#if STM32_HAS_GPIOI || defined(__DOXYGEN__)
+    gpio_setup_t PIData;
+#endif
+#if STM32_HAS_GPIOJ || defined(__DOXYGEN__)
+    gpio_setup_t PJData;
+#endif
+#if STM32_HAS_GPIOK || defined(__DOXYGEN__)
+    gpio_setup_t PKData;
+#endif
+} gpio_config_t;
+
+/**
+ * @brief   STM32 GPIO static initialization data.
+ */
+static const gpio_config_t gpio_default_config = {
+#if STM32_HAS_GPIOA
+    {VAL_GPIOA_MODER, VAL_GPIOA_OTYPER, VAL_GPIOA_OSPEEDR, VAL_GPIOA_PUPDR, VAL_GPIOA_ODR, VAL_GPIOA_AFRL, VAL_GPIOA_AFRH},
+#endif
+#if STM32_HAS_GPIOB
+    {VAL_GPIOB_MODER, VAL_GPIOB_OTYPER, VAL_GPIOB_OSPEEDR, VAL_GPIOB_PUPDR, VAL_GPIOB_ODR, VAL_GPIOB_AFRL, VAL_GPIOB_AFRH},
+#endif
+#if STM32_HAS_GPIOC
+    {VAL_GPIOC_MODER, VAL_GPIOC_OTYPER, VAL_GPIOC_OSPEEDR, VAL_GPIOC_PUPDR, VAL_GPIOC_ODR, VAL_GPIOC_AFRL, VAL_GPIOC_AFRH},
+#endif
+#if STM32_HAS_GPIOD
+    {VAL_GPIOD_MODER, VAL_GPIOD_OTYPER, VAL_GPIOD_OSPEEDR, VAL_GPIOD_PUPDR, VAL_GPIOD_ODR, VAL_GPIOD_AFRL, VAL_GPIOD_AFRH},
+#endif
+#if STM32_HAS_GPIOE
+    {VAL_GPIOE_MODER, VAL_GPIOE_OTYPER, VAL_GPIOE_OSPEEDR, VAL_GPIOE_PUPDR, VAL_GPIOE_ODR, VAL_GPIOE_AFRL, VAL_GPIOE_AFRH},
+#endif
+#if STM32_HAS_GPIOF
+    {VAL_GPIOF_MODER, VAL_GPIOF_OTYPER, VAL_GPIOF_OSPEEDR, VAL_GPIOF_PUPDR, VAL_GPIOF_ODR, VAL_GPIOF_AFRL, VAL_GPIOF_AFRH},
+#endif
+#if STM32_HAS_GPIOG
+    {VAL_GPIOG_MODER, VAL_GPIOG_OTYPER, VAL_GPIOG_OSPEEDR, VAL_GPIOG_PUPDR, VAL_GPIOG_ODR, VAL_GPIOG_AFRL, VAL_GPIOG_AFRH},
+#endif
+#if STM32_HAS_GPIOH
+    {VAL_GPIOH_MODER, VAL_GPIOH_OTYPER, VAL_GPIOH_OSPEEDR, VAL_GPIOH_PUPDR, VAL_GPIOH_ODR, VAL_GPIOH_AFRL, VAL_GPIOH_AFRH},
+#endif
+#if STM32_HAS_GPIOI
+    {VAL_GPIOI_MODER, VAL_GPIOI_OTYPER, VAL_GPIOI_OSPEEDR, VAL_GPIOI_PUPDR, VAL_GPIOI_ODR, VAL_GPIOI_AFRL, VAL_GPIOI_AFRH},
+#endif
+#if STM32_HAS_GPIOJ
+    {VAL_GPIOJ_MODER, VAL_GPIOJ_OTYPER, VAL_GPIOJ_OSPEEDR, VAL_GPIOJ_PUPDR, VAL_GPIOJ_ODR, VAL_GPIOJ_AFRL, VAL_GPIOJ_AFRH},
+#endif
+#if STM32_HAS_GPIOK
+    {VAL_GPIOK_MODER, VAL_GPIOK_OTYPER, VAL_GPIOK_OSPEEDR, VAL_GPIOK_PUPDR, VAL_GPIOK_ODR, VAL_GPIOK_AFRL, VAL_GPIOK_AFRH}
+#endif
+};
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+static void gpio_init(stm32_gpio_t *gpiop, const gpio_setup_t *config) {
+    gpiop->OTYPER  = config->otyper;
+    gpiop->OSPEEDR = config->ospeedr;
+    gpiop->PUPDR   = config->pupdr;
+    gpiop->ODR     = config->odr;
+    gpiop->AFRL    = config->afrl;
+    gpiop->AFRH    = config->afrh;
+    gpiop->MODER   = config->moder;
+}
+
+static void stm32_gpio_init(void) {
+    /* Enabling GPIO-related clocks, the mask comes from the
+       registry header file.*/
+    rccResetAHB(STM32_GPIO_EN_MASK);
+    rccEnableAHB(STM32_GPIO_EN_MASK, true);
+
+    /* Initializing all the defined GPIO ports.*/
+#if STM32_HAS_GPIOA
+    gpio_init(GPIOA, &gpio_default_config.PAData);
+#endif
+#if STM32_HAS_GPIOB
+    gpio_init(GPIOB, &gpio_default_config.PBData);
+#endif
+#if STM32_HAS_GPIOC
+    gpio_init(GPIOC, &gpio_default_config.PCData);
+#endif
+#if STM32_HAS_GPIOD
+    gpio_init(GPIOD, &gpio_default_config.PDData);
+#endif
+#if STM32_HAS_GPIOE
+    gpio_init(GPIOE, &gpio_default_config.PEData);
+#endif
+#if STM32_HAS_GPIOF
+    gpio_init(GPIOF, &gpio_default_config.PFData);
+#endif
+#if STM32_HAS_GPIOG
+    gpio_init(GPIOG, &gpio_default_config.PGData);
+#endif
+#if STM32_HAS_GPIOH
+    gpio_init(GPIOH, &gpio_default_config.PHData);
+#endif
+#if STM32_HAS_GPIOI
+    gpio_init(GPIOI, &gpio_default_config.PIData);
+#endif
+#if STM32_HAS_GPIOJ
+    gpio_init(GPIOJ, &gpio_default_config.PJData);
+#endif
+#if STM32_HAS_GPIOK
+    gpio_init(GPIOK, &gpio_default_config.PKData);
+#endif
+}
 
 void enter_bootloader_mode_if_requested(void);
 
@@ -62,6 +190,8 @@ void enter_bootloader_mode_if_requested(void);
  */
 void __early_init(void) {
     enter_bootloader_mode_if_requested();
+
+    stm32_gpio_init();
     stm32_clock_init();
 }
 

drivers/boards/STM32_F103_STM32DUINO/board.c

@@ -0,0 +1,56 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "hal.h"
+
+// Value to place in RTC backup register 10 for persistent bootloader mode
+#define RTC_BOOTLOADER_FLAG 0x424C
+
+/**
+ * @brief   PAL setup.
+ * @details Digital I/O ports static configuration as defined in @p board.h.
+ *          This variable is used by the HAL when initializing the PAL driver.
+ */
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+const PALConfig pal_default_config =
+{
+  {VAL_GPIOAODR, VAL_GPIOACRL, VAL_GPIOACRH},
+  {VAL_GPIOBODR, VAL_GPIOBCRL, VAL_GPIOBCRH},
+  {VAL_GPIOCODR, VAL_GPIOCCRL, VAL_GPIOCCRH},
+  {VAL_GPIODODR, VAL_GPIODCRL, VAL_GPIODCRH},
+  {VAL_GPIOEODR, VAL_GPIOECRL, VAL_GPIOECRH},
+};
+#endif
+
+/*
+ * Early initialization code.
+ * This initialization must be performed just after stack setup and before
+ * any other initialization.
+ */
+void __early_init(void) {
+
+  stm32_clock_init();
+}
+
+/*
+ * Board-specific initialization code.
+ */
+void boardInit(void) {
+   //JTAG-DP Disabled and SW-DP Enabled
+   AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_JTAGDISABLE;
+   //Set backup register DR10 to enter bootloader on reset
+   BKP->DR10 = RTC_BOOTLOADER_FLAG;
+}

drivers/boards/STM32_F103_STM32DUINO/board.h

@@ -0,0 +1,166 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+/*
+ * Setup for a Generic STM32F103 board.
+ */
+
+/*
+ * Board identifier.
+ */
+#define BOARD_STM32_F103_STM32DUINO
+#define BOARD_NAME              "GENERIC STM32F103C8T6 board - stm32duino bootloader"
+
+/*
+ * Board frequencies.
+ */
+#define STM32_LSECLK            32768
+#define STM32_HSECLK            8000000
+
+/*
+ * MCU type, supported types are defined in ./os/hal/platforms/hal_lld.h.
+ */
+#define STM32F103xB
+
+/*
+ * IO pins assignments
+ */
+
+/* on-board */
+
+#define GPIOA_LED               8
+#define GPIOD_OSC_IN            0
+#define GPIOD_OSC_OUT           1
+
+/* In case your board has a "USB enable" hardware
+   controlled by a pin, define it here. (It could be just
+   a 1.5k resistor connected to D+ line.)
+*/
+/*
+#define GPIOB_USB_DISC          10
+*/
+
+/*
+ * I/O ports initial setup, this configuration is established soon after reset
+ * in the initialization code.
+ *
+ * The digits have the following meaning:
+ *   0 - Analog input.
+ *   1 - Push Pull output 10MHz.
+ *   2 - Push Pull output 2MHz.
+ *   3 - Push Pull output 50MHz.
+ *   4 - Digital input.
+ *   5 - Open Drain output 10MHz.
+ *   6 - Open Drain output 2MHz.
+ *   7 - Open Drain output 50MHz.
+ *   8 - Digital input with PullUp or PullDown resistor depending on ODR.
+ *   9 - Alternate Push Pull output 10MHz.
+ *   A - Alternate Push Pull output 2MHz.
+ *   B - Alternate Push Pull output 50MHz.
+ *   C - Reserved.
+ *   D - Alternate Open Drain output 10MHz.
+ *   E - Alternate Open Drain output 2MHz.
+ *   F - Alternate Open Drain output 50MHz.
+ * Please refer to the STM32 Reference Manual for details.
+ */
+
+/*
+ * Port A setup.
+ * Everything input with pull-up except:
+ * PA2  - Alternate output  (USART2 TX).
+ * PA3  - Normal input      (USART2 RX).
+ * PA9  - Alternate output  (USART1 TX).
+ * PA10 - Normal input      (USART1 RX).
+ */
+#define VAL_GPIOACRL            0x88884B88      /*  PA7...PA0 */
+#define VAL_GPIOACRH            0x888884B8      /* PA15...PA8 */
+#define VAL_GPIOAODR            0xFFFFFFFF
+
+/*
+ * Port B setup.
+ * Everything input with pull-up except:
+ * PB10    - Push Pull output  (USB switch).
+ */
+#define VAL_GPIOBCRL            0x88888888      /*  PB7...PB0 */
+#define VAL_GPIOBCRH            0x88888388      /* PB15...PB8 */
+#define VAL_GPIOBODR            0xFFFFFFFF
+
+/*
+ * Port C setup.
+ * Everything input with pull-up except:
+ * PC13    - Push Pull output  (LED).
+ */
+#define VAL_GPIOCCRL            0x88888888      /*  PC7...PC0 */
+#define VAL_GPIOCCRH            0x88388888      /* PC15...PC8 */
+#define VAL_GPIOCODR            0xFFFFFFFF
+
+/*
+ * Port D setup.
+ * Everything input with pull-up except:
+ * PD0  - Normal input (XTAL).
+ * PD1  - Normal input (XTAL).
+ */
+#define VAL_GPIODCRL            0x88888844      /*  PD7...PD0 */
+#define VAL_GPIODCRH            0x88888888      /* PD15...PD8 */
+#define VAL_GPIODODR            0xFFFFFFFF
+
+/*
+ * Port E setup.
+ * Everything input with pull-up except:
+ */
+#define VAL_GPIOECRL            0x88888888      /*  PE7...PE0 */
+#define VAL_GPIOECRH            0x88888888      /* PE15...PE8 */
+#define VAL_GPIOEODR            0xFFFFFFFF
+
+/*
+ * USB bus activation macro, required by the USB driver.
+ */
+/* The point is that most of the generic STM32F103* boards
+   have a 1.5k resistor connected on one end to the D+ line
+   and on the other end to some pin. Or even a slightly more
+   complicated "USB enable" circuit, controlled by a pin.
+   That should go here.
+
+   However on some boards (e.g. one that I have), there's no
+   such hardware. In which case it's better to not do anything.
+*/
+/*
+#define usb_lld_connect_bus(usbp) palClearPad(GPIOB, GPIOB_USB_DISC)
+*/
+#define usb_lld_connect_bus(usbp) palSetPadMode(GPIOA, 12, PAL_MODE_INPUT);
+
+/*
+ * USB bus de-activation macro, required by the USB driver.
+ */
+/*
+#define usb_lld_disconnect_bus(usbp) palSetPad(GPIOB, GPIOB_USB_DISC)
+*/
+#define usb_lld_disconnect_bus(usbp) palSetPadMode(GPIOA, 12, PAL_MODE_OUTPUT_PUSHPULL); palClearPad(GPIOA, 12);
+
+#if !defined(_FROM_ASM_)
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void boardInit(void);
+#ifdef __cplusplus
+}
+#endif
+#endif /* _FROM_ASM_ */
+
+#endif /* _BOARD_H_ */

drivers/boards/STM32_F103_STM32DUINO/board.mk

@@ -0,0 +1,5 @@
+# List of all the board related files.
+BOARDSRC = $(BOARD_PATH)/boards/STM32_F103_STM32DUINO/board.c
+
+# Required include directories
+BOARDINC = $(BOARD_PATH)/boards/STM32_F103_STM32DUINO

drivers/boards/ld/MKL26Z64.ld

@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2013-2016 Fabio Utzig, http://fabioutzig.com
+ *           (C) 2016 flabbergast <s3+flabbergast@sdfeu.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/*
+ * KL26Z64 memory setup.
+ */
+MEMORY
+{
+  flash0   : org = 0x00000000, len = 0x100
+  flash1   : org = 0x00000400, len = 0x10
+  flash2   : org = 0x00000410, len = 62k - 0x410
+  flash3   : org = 0x0000F800, len = 2k
+  flash4   : org = 0x00000000, len = 0
+  flash5   : org = 0x00000000, len = 0
+  flash6   : org = 0x00000000, len = 0
+  flash7   : org = 0x00000000, len = 0
+  ram0     : org = 0x1FFFF800, len = 8k
+  ram1     : org = 0x00000000, len = 0
+  ram2     : org = 0x00000000, len = 0
+  ram3     : org = 0x00000000, len = 0
+  ram4     : org = 0x00000000, len = 0
+  ram5     : org = 0x00000000, len = 0
+  ram6     : org = 0x00000000, len = 0
+  ram7     : org = 0x00000000, len = 0
+}
+
+/* Flash region for the configuration bytes.*/
+SECTIONS
+{
+  .cfmprotect : ALIGN(4) SUBALIGN(4)
+  {
+    KEEP(*(.cfmconfig))
+  } > flash1
+}
+
+/* For each data/text section two region are defined, a virtual region
+   and a load region (_LMA suffix).*/
+
+/* Flash region to be used for exception vectors.*/
+REGION_ALIAS("VECTORS_FLASH", flash0);
+REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
+
+/* Flash region to be used for constructors and destructors.*/
+REGION_ALIAS("XTORS_FLASH", flash2);
+REGION_ALIAS("XTORS_FLASH_LMA", flash2);
+
+/* Flash region to be used for code text.*/
+REGION_ALIAS("TEXT_FLASH", flash2);
+REGION_ALIAS("TEXT_FLASH_LMA", flash2);
+
+/* Flash region to be used for read only data.*/
+REGION_ALIAS("RODATA_FLASH", flash2);
+REGION_ALIAS("RODATA_FLASH_LMA", flash2);
+
+/* Flash region to be used for various.*/
+REGION_ALIAS("VARIOUS_FLASH", flash2);
+REGION_ALIAS("VARIOUS_FLASH_LMA", flash2);
+
+/* Flash region to be used for RAM(n) initialization data.*/
+REGION_ALIAS("RAM_INIT_FLASH_LMA", flash2);
+
+/* RAM region to be used for Main stack. This stack accommodates the processing
+   of all exceptions and interrupts.*/
+REGION_ALIAS("MAIN_STACK_RAM", ram0);
+
+/* RAM region to be used for the process stack. This is the stack used by
+   the main() function.*/
+REGION_ALIAS("PROCESS_STACK_RAM", ram0);
+
+/* RAM region to be used for data segment.*/
+REGION_ALIAS("DATA_RAM", ram0);
+REGION_ALIAS("DATA_RAM_LMA", flash2);
+
+/* RAM region to be used for BSS segment.*/
+REGION_ALIAS("BSS_RAM", ram0);
+
+/* RAM region to be used for the default heap.*/
+REGION_ALIAS("HEAP_RAM", ram0);
+
+__eeprom_workarea_start__ = ORIGIN(flash3);
+__eeprom_workarea_size__  = LENGTH(flash3);
+__eeprom_workarea_end__   = __eeprom_workarea_start__ + __eeprom_workarea_size__;
+
+/* Generic rules inclusion.*/
+INCLUDE rules.ld

drivers/boards/ld/STM32F103x8_stm32duino_bootloader.ld

@@ -0,0 +1,88 @@
+/*
+    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/*
+ * ST32F103xB memory setup for use with the maplemini bootloader.
+ * You will have to
+ * 	#define CORTEX_VTOR_INIT 0x5000
+ * in your projects chconf.h
+ */
+MEMORY
+{
+    flash0  : org = 0x08002000, len = 64k - 0x2000
+    flash1  : org = 0x00000000, len = 0
+    flash2  : org = 0x00000000, len = 0
+    flash3  : org = 0x00000000, len = 0
+    flash4  : org = 0x00000000, len = 0
+    flash5  : org = 0x00000000, len = 0
+    flash6  : org = 0x00000000, len = 0
+    flash7  : org = 0x00000000, len = 0
+    ram0    : org = 0x20000000, len = 20k
+    ram1    : org = 0x00000000, len = 0
+    ram2    : org = 0x00000000, len = 0
+    ram3    : org = 0x00000000, len = 0
+    ram4    : org = 0x00000000, len = 0
+    ram5    : org = 0x00000000, len = 0
+    ram6    : org = 0x00000000, len = 0
+    ram7    : org = 0x00000000, len = 0
+}
+
+/* For each data/text section two region are defined, a virtual region
+   and a load region (_LMA suffix).*/
+
+/* Flash region to be used for exception vectors.*/
+REGION_ALIAS("VECTORS_FLASH", flash0);
+REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
+
+/* Flash region to be used for constructors and destructors.*/
+REGION_ALIAS("XTORS_FLASH", flash0);
+REGION_ALIAS("XTORS_FLASH_LMA", flash0);
+
+/* Flash region to be used for code text.*/
+REGION_ALIAS("TEXT_FLASH", flash0);
+REGION_ALIAS("TEXT_FLASH_LMA", flash0);
+
+/* Flash region to be used for read only data.*/
+REGION_ALIAS("RODATA_FLASH", flash0);
+REGION_ALIAS("RODATA_FLASH_LMA", flash0);
+
+/* Flash region to be used for various.*/
+REGION_ALIAS("VARIOUS_FLASH", flash0);
+REGION_ALIAS("VARIOUS_FLASH_LMA", flash0);
+
+/* Flash region to be used for RAM(n) initialization data.*/
+REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0);
+
+/* RAM region to be used for Main stack. This stack accommodates the processing
+   of all exceptions and interrupts.*/
+REGION_ALIAS("MAIN_STACK_RAM", ram0);
+
+/* RAM region to be used for the process stack. This is the stack used by
+   the main() function.*/
+REGION_ALIAS("PROCESS_STACK_RAM", ram0);
+
+/* RAM region to be used for data segment.*/
+REGION_ALIAS("DATA_RAM", ram0);
+REGION_ALIAS("DATA_RAM_LMA", flash0);
+
+/* RAM region to be used for BSS segment.*/
+REGION_ALIAS("BSS_RAM", ram0);
+
+/* RAM region to be used for the default heap.*/
+REGION_ALIAS("HEAP_RAM", ram0);
+
+/* Generic rules inclusion.*/
+INCLUDE rules.ld

drivers/chibios/analog.c

@@ -0,0 +1,276 @@
+/* Copyright 2019 Drew Mills
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "quantum.h"
+#include "analog.h"
+#include "ch.h"
+#include <hal.h>
+
+#if !HAL_USE_ADC
+#    error "You need to set HAL_USE_ADC to TRUE in your halconf.h to use the ADC."
+#endif
+
+#if !STM32_ADC_USE_ADC1 && !STM32_ADC_USE_ADC2 && !STM32_ADC_USE_ADC3 && !STM32_ADC_USE_ADC4
+#    error "You need to set one of the 'STM32_ADC_USE_ADCx' settings to TRUE in your mcuconf.h to use the ADC."
+#endif
+
+#if STM32_ADC_DUAL_MODE
+#    error "STM32 ADC Dual Mode is not supported at this time."
+#endif
+
+#if STM32_ADCV3_OVERSAMPLING
+#    error "STM32 ADCV3 Oversampling is not supported at this time."
+#endif
+
+// Otherwise assume V3
+#if defined(STM32F0XX) || defined(STM32L0XX)
+#    define USE_ADCV1
+#elif defined(STM32F1XX) || defined(STM32F2XX) || defined(STM32F4XX)
+#    define USE_ADCV2
+#endif
+
+// BODGE to make v2 look like v1,3 and 4
+#ifdef USE_ADCV2
+#    if !defined(ADC_SMPR_SMP_1P5) && defined(ADC_SAMPLE_3)
+#        define ADC_SMPR_SMP_1P5 ADC_SAMPLE_3
+#        define ADC_SMPR_SMP_7P5 ADC_SAMPLE_15
+#        define ADC_SMPR_SMP_13P5 ADC_SAMPLE_28
+#        define ADC_SMPR_SMP_28P5 ADC_SAMPLE_56
+#        define ADC_SMPR_SMP_41P5 ADC_SAMPLE_84
+#        define ADC_SMPR_SMP_55P5 ADC_SAMPLE_112
+#        define ADC_SMPR_SMP_71P5 ADC_SAMPLE_144
+#        define ADC_SMPR_SMP_239P5 ADC_SAMPLE_480
+#    endif
+
+#    if !defined(ADC_SMPR_SMP_1P5) && defined(ADC_SAMPLE_1P5)
+#        define ADC_SMPR_SMP_1P5 ADC_SAMPLE_1P5
+#        define ADC_SMPR_SMP_7P5 ADC_SAMPLE_7P5
+#        define ADC_SMPR_SMP_13P5 ADC_SAMPLE_13P5
+#        define ADC_SMPR_SMP_28P5 ADC_SAMPLE_28P5
+#        define ADC_SMPR_SMP_41P5 ADC_SAMPLE_41P5
+#        define ADC_SMPR_SMP_55P5 ADC_SAMPLE_55P5
+#        define ADC_SMPR_SMP_71P5 ADC_SAMPLE_71P5
+#        define ADC_SMPR_SMP_239P5 ADC_SAMPLE_239P5
+#    endif
+
+// we still sample at 12bit, but scale down to the requested bit range
+#    define ADC_CFGR1_RES_12BIT 12
+#    define ADC_CFGR1_RES_10BIT 10
+#    define ADC_CFGR1_RES_8BIT 8
+#    define ADC_CFGR1_RES_6BIT 6
+#endif
+
+/* User configurable ADC options */
+#ifndef ADC_COUNT
+#    if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F4XX)
+#        define ADC_COUNT 1
+#    elif defined(STM32F3XX)
+#        define ADC_COUNT 4
+#    else
+#        error "ADC_COUNT has not been set for this ARM microcontroller."
+#    endif
+#endif
+
+#ifndef ADC_NUM_CHANNELS
+#    define ADC_NUM_CHANNELS 1
+#elif ADC_NUM_CHANNELS != 1
+#    error "The ARM ADC implementation currently only supports reading one channel at a time."
+#endif
+
+#ifndef ADC_BUFFER_DEPTH
+#    define ADC_BUFFER_DEPTH 1
+#endif
+
+// For more sampling rate options, look at hal_adc_lld.h in ChibiOS
+#ifndef ADC_SAMPLING_RATE
+#    define ADC_SAMPLING_RATE ADC_SMPR_SMP_1P5
+#endif
+
+// Options are 12, 10, 8, and 6 bit.
+#ifndef ADC_RESOLUTION
+#    define ADC_RESOLUTION ADC_CFGR1_RES_10BIT
+#endif
+
+static ADCConfig   adcCfg = {};
+static adcsample_t sampleBuffer[ADC_NUM_CHANNELS * ADC_BUFFER_DEPTH];
+
+// Initialize to max number of ADCs, set to empty object to initialize all to false.
+static bool adcInitialized[ADC_COUNT] = {};
+
+// TODO: add back TR handling???
+static ADCConversionGroup adcConversionGroup = {
+    .circular     = FALSE,
+    .num_channels = (uint16_t)(ADC_NUM_CHANNELS),
+#if defined(USE_ADCV1)
+    .cfgr1 = ADC_CFGR1_CONT | ADC_RESOLUTION,
+    .smpr  = ADC_SAMPLING_RATE,
+#elif defined(USE_ADCV2)
+#    if !defined(STM32F1XX)
+    .cr2   = ADC_CR2_SWSTART,  // F103 seem very unhappy with, F401 seems very unhappy without...
+#    endif
+    .smpr2 = ADC_SMPR2_SMP_AN0(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN1(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN2(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN3(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN4(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN5(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN6(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN7(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN8(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN9(ADC_SAMPLING_RATE),
+    .smpr1 = ADC_SMPR1_SMP_AN10(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN11(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN12(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN13(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN14(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN15(ADC_SAMPLING_RATE),
+#else
+    .cfgr = ADC_CFGR_CONT | ADC_RESOLUTION,
+    .smpr = {ADC_SMPR1_SMP_AN0(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN1(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN2(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN3(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN4(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN5(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN6(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN7(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN8(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN9(ADC_SAMPLING_RATE), ADC_SMPR2_SMP_AN10(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN11(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN12(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN13(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN14(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN15(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN16(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN17(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN18(ADC_SAMPLING_RATE)},
+#endif
+};
+
+// clang-format off
+__attribute__((weak)) adc_mux pinToMux(pin_t pin) {
+    switch (pin) {
+#if defined(STM32F0XX)
+        case A0:  return TO_MUX( ADC_CHSELR_CHSEL0,  0 );
+        case A1:  return TO_MUX( ADC_CHSELR_CHSEL1,  0 );
+        case A2:  return TO_MUX( ADC_CHSELR_CHSEL2,  0 );
+        case A3:  return TO_MUX( ADC_CHSELR_CHSEL3,  0 );
+        case A4:  return TO_MUX( ADC_CHSELR_CHSEL4,  0 );
+        case A5:  return TO_MUX( ADC_CHSELR_CHSEL5,  0 );
+        case A6:  return TO_MUX( ADC_CHSELR_CHSEL6,  0 );
+        case A7:  return TO_MUX( ADC_CHSELR_CHSEL7,  0 );
+        case B0:  return TO_MUX( ADC_CHSELR_CHSEL8,  0 );
+        case B1:  return TO_MUX( ADC_CHSELR_CHSEL9,  0 );
+        case C0:  return TO_MUX( ADC_CHSELR_CHSEL10, 0 );
+        case C1:  return TO_MUX( ADC_CHSELR_CHSEL11, 0 );
+        case C2:  return TO_MUX( ADC_CHSELR_CHSEL12, 0 );
+        case C3:  return TO_MUX( ADC_CHSELR_CHSEL13, 0 );
+        case C4:  return TO_MUX( ADC_CHSELR_CHSEL14, 0 );
+        case C5:  return TO_MUX( ADC_CHSELR_CHSEL15, 0 );
+#elif defined(STM32F3XX)
+        case A0:  return TO_MUX( ADC_CHANNEL_IN1,  0 );
+        case A1:  return TO_MUX( ADC_CHANNEL_IN2,  0 );
+        case A2:  return TO_MUX( ADC_CHANNEL_IN3,  0 );
+        case A3:  return TO_MUX( ADC_CHANNEL_IN4,  0 );
+        case A4:  return TO_MUX( ADC_CHANNEL_IN1,  1 );
+        case A5:  return TO_MUX( ADC_CHANNEL_IN2,  1 );
+        case A6:  return TO_MUX( ADC_CHANNEL_IN3,  1 );
+        case A7:  return TO_MUX( ADC_CHANNEL_IN4,  1 );
+        case B0:  return TO_MUX( ADC_CHANNEL_IN12, 2 );
+        case B1:  return TO_MUX( ADC_CHANNEL_IN1,  2 );
+        case B2:  return TO_MUX( ADC_CHANNEL_IN12, 1 );
+        case B12: return TO_MUX( ADC_CHANNEL_IN2,  3 );
+        case B13: return TO_MUX( ADC_CHANNEL_IN3,  3 );
+        case B14: return TO_MUX( ADC_CHANNEL_IN4,  3 );
+        case B15: return TO_MUX( ADC_CHANNEL_IN5,  3 );
+        case C0:  return TO_MUX( ADC_CHANNEL_IN6,  0 ); // Can also be ADC2
+        case C1:  return TO_MUX( ADC_CHANNEL_IN7,  0 ); // Can also be ADC2
+        case C2:  return TO_MUX( ADC_CHANNEL_IN8,  0 ); // Can also be ADC2
+        case C3:  return TO_MUX( ADC_CHANNEL_IN9,  0 ); // Can also be ADC2
+        case C4:  return TO_MUX( ADC_CHANNEL_IN5,  1 );
+        case C5:  return TO_MUX( ADC_CHANNEL_IN11, 1 );
+        case D8:  return TO_MUX( ADC_CHANNEL_IN12, 3 );
+        case D9:  return TO_MUX( ADC_CHANNEL_IN13, 3 );
+        case D10: return TO_MUX( ADC_CHANNEL_IN7,  2 ); // Can also be ADC4
+        case D11: return TO_MUX( ADC_CHANNEL_IN8,  2 ); // Can also be ADC4
+        case D12: return TO_MUX( ADC_CHANNEL_IN9,  2 ); // Can also be ADC4
+        case D13: return TO_MUX( ADC_CHANNEL_IN10, 2 ); // Can also be ADC4
+        case D14: return TO_MUX( ADC_CHANNEL_IN11, 2 ); // Can also be ADC4
+        case E7:  return TO_MUX( ADC_CHANNEL_IN13, 2 );
+        case E8:  return TO_MUX( ADC_CHANNEL_IN6,  2 ); // Can also be ADC4
+        case E9:  return TO_MUX( ADC_CHANNEL_IN2,  2 );
+        case E10: return TO_MUX( ADC_CHANNEL_IN14, 2 );
+        case E11: return TO_MUX( ADC_CHANNEL_IN15, 2 );
+        case E12: return TO_MUX( ADC_CHANNEL_IN16, 2 );
+        case E13: return TO_MUX( ADC_CHANNEL_IN3,  2 );
+        case E14: return TO_MUX( ADC_CHANNEL_IN1,  3 );
+        case E15: return TO_MUX( ADC_CHANNEL_IN2,  3 );
+        case F2:  return TO_MUX( ADC_CHANNEL_IN10, 0 ); // Can also be ADC2
+        case F4:  return TO_MUX( ADC_CHANNEL_IN5,  0 );
+#elif defined(STM32F4XX) // TODO: add all pins
+        case A0:  return TO_MUX( ADC_CHANNEL_IN0,  0 );
+        //case A1:  return TO_MUX( ADC_CHANNEL_IN1,  0 );
+#elif defined(STM32F1XX) // TODO: add all pins
+        case A0:  return TO_MUX( ADC_CHANNEL_IN0,  0 );
+#endif
+    }
+
+    // return an adc that would never be used so intToADCDriver will bail out
+    return TO_MUX(0, 0xFF);
+}
+// clang-format on
+
+static inline ADCDriver* intToADCDriver(uint8_t adcInt) {
+    switch (adcInt) {
+#if STM32_ADC_USE_ADC1
+        case 0:
+            return &ADCD1;
+#endif
+#if STM32_ADC_USE_ADC2
+        case 1:
+            return &ADCD2;
+#endif
+#if STM32_ADC_USE_ADC3
+        case 2:
+            return &ADCD3;
+#endif
+#if STM32_ADC_USE_ADC4
+        case 3:
+            return &ADCD4;
+#endif
+    }
+
+    return NULL;
+}
+
+static inline void manageAdcInitializationDriver(uint8_t adc, ADCDriver* adcDriver) {
+    if (!adcInitialized[adc]) {
+        adcStart(adcDriver, &adcCfg);
+        adcInitialized[adc] = true;
+    }
+}
+
+int16_t analogReadPin(pin_t pin) {
+    palSetLineMode(pin, PAL_MODE_INPUT_ANALOG);
+
+    return adc_read(pinToMux(pin));
+}
+
+int16_t analogReadPinAdc(pin_t pin, uint8_t adc) {
+    palSetLineMode(pin, PAL_MODE_INPUT_ANALOG);
+
+    adc_mux target = pinToMux(pin);
+    target.adc     = adc;
+    return adc_read(target);
+}
+
+int16_t adc_read(adc_mux mux) {
+#if defined(USE_ADCV1)
+    // TODO: fix previous assumption of only 1 input...
+    adcConversionGroup.chselr = 1 << mux.input; /*no macro to convert N to ADC_CHSELR_CHSEL1*/
+#elif defined(USE_ADCV2)
+    adcConversionGroup.sqr3 = ADC_SQR3_SQ1_N(mux.input);
+#else
+    adcConversionGroup.sqr[0] = ADC_SQR1_SQ1_N(mux.input);
+#endif
+
+    ADCDriver* targetDriver = intToADCDriver(mux.adc);
+    if (!targetDriver) {
+        return 0;
+    }
+
+    manageAdcInitializationDriver(mux.adc, targetDriver);
+    if (adcConvert(targetDriver, &adcConversionGroup, &sampleBuffer[0], ADC_BUFFER_DEPTH) != MSG_OK) {
+        return 0;
+    }
+
+#ifdef USE_ADCV2
+    // fake 12-bit -> N-bit scale
+    return (*sampleBuffer) >> (12 - ADC_RESOLUTION);
+#else
+    // already handled as part of adcConvert
+    return *sampleBuffer;
+#endif
+}

drivers/chibios/analog.h

@@ -0,0 +1,41 @@
+/* Copyright 2019 Drew Mills
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include "quantum.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    uint16_t input;
+    uint8_t  adc;
+} adc_mux;
+#define TO_MUX(i, a) \
+    (adc_mux) { i, a }
+
+int16_t analogReadPin(pin_t pin);
+int16_t analogReadPinAdc(pin_t pin, uint8_t adc);
+adc_mux pinToMux(pin_t pin);
+
+int16_t adc_read(adc_mux mux);
+
+#ifdef __cplusplus
+}
+#endif

drivers/chibios/i2c_master.c

@@ -24,20 +24,23 @@
  * STM32_I2C_USE_I2C1 is TRUE in the mcuconf.h file. Pins B6 and B7 are used
  * but using any other I2C pins should be trivial.
  */
-
-#include "i2c_master.h"
 #include "quantum.h"
+#include "i2c_master.h"
 #include <string.h>
 #include <hal.h>
 
 static uint8_t i2c_address;
 
 static const I2CConfig i2cconfig = {
-#ifdef USE_I2CV1
+#if defined(USE_I2CV1_CONTRIB)
+    I2C1_CLOCK_SPEED,
+#elif defined(USE_I2CV1)
     I2C1_OPMODE,
     I2C1_CLOCK_SPEED,
     I2C1_DUTY_CYCLE,
 #else
+    // This configures the I2C clock to 400khz assuming a 72Mhz clock
+    // For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html
     STM32_TIMINGR_PRESC(I2C1_TIMINGR_PRESC) | STM32_TIMINGR_SCLDEL(I2C1_TIMINGR_SCLDEL) | STM32_TIMINGR_SDADEL(I2C1_TIMINGR_SDADEL) | STM32_TIMINGR_SCLH(I2C1_TIMINGR_SCLH) | STM32_TIMINGR_SCLL(I2C1_TIMINGR_SCLL), 0, 0
 #endif
 };
@@ -60,16 +63,13 @@ __attribute__((weak)) void i2c_init(void) {
     palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_INPUT);
 
     chThdSleepMilliseconds(10);
-
-#ifdef USE_I2CV1
-    palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, PAL_MODE_STM32_ALTERNATE_OPENDRAIN);
-    palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_STM32_ALTERNATE_OPENDRAIN);
+#if defined(USE_GPIOV1)
+    palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, I2C1_SCL_PAL_MODE);
+    palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, I2C1_SDA_PAL_MODE);
 #else
     palSetPadMode(I2C1_SCL_BANK, I2C1_SCL, PAL_MODE_ALTERNATE(I2C1_SCL_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
     palSetPadMode(I2C1_SDA_BANK, I2C1_SDA, PAL_MODE_ALTERNATE(I2C1_SDA_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
 #endif
-
-    // i2cInit(); //This is invoked by halInit() so no need to redo it.
 }
 
 i2c_status_t i2c_start(uint8_t address) {
@@ -81,14 +81,14 @@ i2c_status_t i2c_start(uint8_t address) {
 i2c_status_t i2c_transmit(uint8_t address, const uint8_t* data, uint16_t length, uint16_t timeout) {
     i2c_address = address;
     i2cStart(&I2C_DRIVER, &i2cconfig);
-    msg_t status = i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), data, length, 0, 0, MS2ST(timeout));
+    msg_t status = i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), data, length, 0, 0, TIME_MS2I(timeout));
     return chibios_to_qmk(&status);
 }
 
 i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout) {
     i2c_address = address;
     i2cStart(&I2C_DRIVER, &i2cconfig);
-    msg_t status = i2cMasterReceiveTimeout(&I2C_DRIVER, (i2c_address >> 1), data, length, MS2ST(timeout));
+    msg_t status = i2cMasterReceiveTimeout(&I2C_DRIVER, (i2c_address >> 1), data, length, TIME_MS2I(timeout));
     return chibios_to_qmk(&status);
 }
 
@@ -102,14 +102,14 @@ i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, const uint8_t* data,
     }
     complete_packet[0] = regaddr;
 
-    msg_t status = i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), complete_packet, length + 1, 0, 0, MS2ST(timeout));
+    msg_t status = i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), complete_packet, length + 1, 0, 0, TIME_MS2I(timeout));
     return chibios_to_qmk(&status);
 }
 
 i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout) {
     i2c_address = devaddr;
     i2cStart(&I2C_DRIVER, &i2cconfig);
-    msg_t status = i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), &regaddr, 1, data, length, MS2ST(timeout));
+    msg_t status = i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), &regaddr, 1, data, length, TIME_MS2I(timeout));
     return chibios_to_qmk(&status);
 }
 

drivers/chibios/i2c_master.h

@@ -27,10 +27,6 @@
 #include "ch.h"
 #include <hal.h>
 
-#if defined(STM32F1XX) || defined(STM32F1xx) || defined(STM32F2xx) || defined(STM32F4xx) || defined(STM32L0xx) || defined(STM32L1xx)
-#    define USE_I2CV1
-#endif
-
 #ifdef I2C1_BANK
 #    define I2C1_SCL_BANK I2C1_BANK
 #    define I2C1_SDA_BANK I2C1_BANK
@@ -62,6 +58,37 @@
 #        define I2C1_DUTY_CYCLE STD_DUTY_CYCLE /* FAST_DUTY_CYCLE_2 */
 #    endif
 #else
+// The default timing values below configures the I2C clock to 400khz assuming a 72Mhz clock
+// For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html
+#    ifndef I2C1_TIMINGR_PRESC
+#        define I2C1_TIMINGR_PRESC 0U
+#    endif
+#    ifndef I2C1_TIMINGR_SCLDEL
+#        define I2C1_TIMINGR_SCLDEL 7U
+#    endif
+#    ifndef I2C1_TIMINGR_SDADEL
+#        define I2C1_TIMINGR_SDADEL 0U
+#    endif
+#    ifndef I2C1_TIMINGR_SCLH
+#        define I2C1_TIMINGR_SCLH 38U
+#    endif
+#    ifndef I2C1_TIMINGR_SCLL
+#        define I2C1_TIMINGR_SCLL 129U
+#    endif
+#endif
+
+#ifndef I2C_DRIVER
+#    define I2C_DRIVER I2CD1
+#endif
+
+#ifdef USE_GPIOV1
+#    ifndef I2C1_SCL_PAL_MODE
+#        define I2C1_SCL_PAL_MODE PAL_MODE_STM32_ALTERNATE_OPENDRAIN
+#    endif
+#    ifndef I2C1_SDA_PAL_MODE
+#        define I2C1_SDA_PAL_MODE PAL_MODE_STM32_ALTERNATE_OPENDRAIN
+#    endif
+#else
 // The default PAL alternate modes are used to signal that the pins are used for I2C
 #    ifndef I2C1_SCL_PAL_MODE
 #        define I2C1_SCL_PAL_MODE 4
@@ -69,28 +96,6 @@
 #    ifndef I2C1_SDA_PAL_MODE
 #        define I2C1_SDA_PAL_MODE 4
 #    endif
-
-// The default timing values below configures the I2C clock to 400khz assuming a 72Mhz clock
-// For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html
-#    ifndef I2C1_TIMINGR_PRESC
-#        define I2C1_TIMINGR_PRESC 15U
-#    endif
-#    ifndef I2C1_TIMINGR_SCLDEL
-#        define I2C1_TIMINGR_SCLDEL 4U
-#    endif
-#    ifndef I2C1_TIMINGR_SDADEL
-#        define I2C1_TIMINGR_SDADEL 2U
-#    endif
-#    ifndef I2C1_TIMINGR_SCLH
-#        define I2C1_TIMINGR_SCLH 15U
-#    endif
-#    ifndef I2C1_TIMINGR_SCLL
-#        define I2C1_TIMINGR_SCLL 21U
-#    endif
-#endif
-
-#ifndef I2C_DRIVER
-#    define I2C_DRIVER I2CD1
 #endif
 
 typedef int16_t i2c_status_t;

drivers/chibios/serial.c

@@ -0,0 +1,290 @@
+/*
+ * WARNING: be careful changing this code, it is very timing dependent
+ */
+
+#include "quantum.h"
+#include "serial.h"
+#include "wait.h"
+
+#include "hal.h"
+
+// TODO: resolve/remove build warnings
+#if defined(RGBLIGHT_ENABLE) && defined(RGBLED_SPLIT) && defined(PROTOCOL_CHIBIOS) && defined(WS2812_DRIVER_BITBANG)
+#    warning "RGBLED_SPLIT not supported with bitbang WS2812 driver"
+#endif
+
+// default wait implementation cannot be called within interrupt
+//   this method seems to be more accurate than GPT timers
+#if PORT_SUPPORTS_RT == FALSE
+#    error "chSysPolledDelayX method not supported on this platform"
+#else
+#    undef wait_us
+#    define wait_us(x) chSysPolledDelayX(US2RTC(STM32_SYSCLK, x))
+#endif
+
+#ifndef SELECT_SOFT_SERIAL_SPEED
+#    define SELECT_SOFT_SERIAL_SPEED 1
+// TODO: correct speeds...
+//  0: about 189kbps (Experimental only)
+//  1: about 137kbps (default)
+//  2: about 75kbps
+//  3: about 39kbps
+//  4: about 26kbps
+//  5: about 20kbps
+#endif
+
+// Serial pulse period in microseconds. At the moment, going lower than 12 causes communication failure
+#if SELECT_SOFT_SERIAL_SPEED == 0
+#    define SERIAL_DELAY 12
+#elif SELECT_SOFT_SERIAL_SPEED == 1
+#    define SERIAL_DELAY 16
+#elif SELECT_SOFT_SERIAL_SPEED == 2
+#    define SERIAL_DELAY 24
+#elif SELECT_SOFT_SERIAL_SPEED == 3
+#    define SERIAL_DELAY 32
+#elif SELECT_SOFT_SERIAL_SPEED == 4
+#    define SERIAL_DELAY 48
+#elif SELECT_SOFT_SERIAL_SPEED == 5
+#    define SERIAL_DELAY 64
+#else
+#    error invalid SELECT_SOFT_SERIAL_SPEED value
+#endif
+
+inline static void serial_delay(void) { wait_us(SERIAL_DELAY); }
+inline static void serial_delay_half(void) { wait_us(SERIAL_DELAY / 2); }
+inline static void serial_delay_blip(void) { wait_us(1); }
+inline static void serial_output(void) { setPinOutput(SOFT_SERIAL_PIN); }
+inline static void serial_input(void) { setPinInputHigh(SOFT_SERIAL_PIN); }
+inline static bool serial_read_pin(void) { return !!readPin(SOFT_SERIAL_PIN); }
+inline static void serial_low(void) { writePinLow(SOFT_SERIAL_PIN); }
+inline static void serial_high(void) { writePinHigh(SOFT_SERIAL_PIN); }
+
+void interrupt_handler(void *arg);
+
+// Use thread + palWaitLineTimeout instead of palSetLineCallback
+//  - Methods like setPinOutput and palEnableLineEvent/palDisableLineEvent
+//    cause the interrupt to lock up, which would limit to only receiving data...
+static THD_WORKING_AREA(waThread1, 128);
+static THD_FUNCTION(Thread1, arg) {
+    (void)arg;
+    chRegSetThreadName("blinker");
+    while (true) {
+        palWaitLineTimeout(SOFT_SERIAL_PIN, TIME_INFINITE);
+        interrupt_handler(NULL);
+    }
+}
+
+static SSTD_t *Transaction_table      = NULL;
+static uint8_t Transaction_table_size = 0;
+
+void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size) {
+    Transaction_table      = sstd_table;
+    Transaction_table_size = (uint8_t)sstd_table_size;
+
+    serial_output();
+    serial_high();
+}
+
+void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size) {
+    Transaction_table      = sstd_table;
+    Transaction_table_size = (uint8_t)sstd_table_size;
+
+    serial_input();
+
+    palEnablePadEvent(PAL_PORT(SOFT_SERIAL_PIN), PAL_PAD(SOFT_SERIAL_PIN), PAL_EVENT_MODE_FALLING_EDGE);
+    chThdCreateStatic(waThread1, sizeof(waThread1), HIGHPRIO, Thread1, NULL);
+}
+
+// Used by the master to synchronize timing with the slave.
+static void __attribute__((noinline)) sync_recv(void) {
+    serial_input();
+    // This shouldn't hang if the slave disconnects because the
+    // serial line will float to high if the slave does disconnect.
+    while (!serial_read_pin()) {
+    }
+
+    serial_delay();
+}
+
+// Used by the slave to send a synchronization signal to the master.
+static void __attribute__((noinline)) sync_send(void) {
+    serial_output();
+
+    serial_low();
+    serial_delay();
+
+    serial_high();
+}
+
+// Reads a byte from the serial line
+static uint8_t __attribute__((noinline)) serial_read_byte(void) {
+    uint8_t byte = 0;
+    serial_input();
+    for (uint8_t i = 0; i < 8; ++i) {
+        byte = (byte << 1) | serial_read_pin();
+        serial_delay();
+    }
+
+    return byte;
+}
+
+// Sends a byte with MSB ordering
+static void __attribute__((noinline)) serial_write_byte(uint8_t data) {
+    uint8_t b = 8;
+    serial_output();
+    while (b--) {
+        if (data & (1 << b)) {
+            serial_high();
+        } else {
+            serial_low();
+        }
+        serial_delay();
+    }
+}
+
+// interrupt handle to be used by the slave device
+void interrupt_handler(void *arg) {
+    chSysLockFromISR();
+
+    sync_send();
+
+    // read mid pulses
+    serial_delay_blip();
+
+    uint8_t checksum_computed = 0;
+    int     sstd_index        = 0;
+
+#ifdef SERIAL_USE_MULTI_TRANSACTION
+    sstd_index = serial_read_byte();
+    sync_send();
+#endif
+
+    SSTD_t *trans = &Transaction_table[sstd_index];
+    for (int i = 0; i < trans->initiator2target_buffer_size; ++i) {
+        trans->initiator2target_buffer[i] = serial_read_byte();
+        sync_send();
+        checksum_computed += trans->initiator2target_buffer[i];
+    }
+    checksum_computed ^= 7;
+    uint8_t checksum_received = serial_read_byte();
+    sync_send();
+
+    // wait for the sync to finish sending
+    serial_delay();
+
+    uint8_t checksum = 0;
+    for (int i = 0; i < trans->target2initiator_buffer_size; ++i) {
+        serial_write_byte(trans->target2initiator_buffer[i]);
+        sync_send();
+        serial_delay_half();
+        checksum += trans->target2initiator_buffer[i];
+    }
+    serial_write_byte(checksum ^ 7);
+    sync_send();
+
+    // wait for the sync to finish sending
+    serial_delay();
+
+    *trans->status = (checksum_computed == checksum_received) ? TRANSACTION_ACCEPTED : TRANSACTION_DATA_ERROR;
+
+    // end transaction
+    serial_input();
+
+    // TODO: remove extra delay between transactions
+    serial_delay();
+
+    chSysUnlockFromISR();
+}
+
+/////////
+//  start transaction by initiator
+//
+// int  soft_serial_transaction(int sstd_index)
+//
+// Returns:
+//    TRANSACTION_END
+//    TRANSACTION_NO_RESPONSE
+//    TRANSACTION_DATA_ERROR
+// this code is very time dependent, so we need to disable interrupts
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+int soft_serial_transaction(void) {
+    int sstd_index = 0;
+#else
+int soft_serial_transaction(int sstd_index) {
+#endif
+
+    if (sstd_index > Transaction_table_size) return TRANSACTION_TYPE_ERROR;
+    SSTD_t *trans = &Transaction_table[sstd_index];
+
+    // TODO: remove extra delay between transactions
+    serial_delay();
+
+    // this code is very time dependent, so we need to disable interrupts
+    chSysLock();
+
+    // signal to the slave that we want to start a transaction
+    serial_output();
+    serial_low();
+    serial_delay_blip();
+
+    // wait for the slaves response
+    serial_input();
+    serial_high();
+    serial_delay();
+
+    // check if the slave is present
+    if (serial_read_pin()) {
+        // slave failed to pull the line low, assume not present
+        dprintf("serial::NO_RESPONSE\n");
+        chSysUnlock();
+        return TRANSACTION_NO_RESPONSE;
+    }
+
+    // if the slave is present syncronize with it
+
+    uint8_t checksum = 0;
+    // send data to the slave
+#ifdef SERIAL_USE_MULTI_TRANSACTION
+    serial_write_byte(sstd_index);  // first chunk is transaction id
+    sync_recv();
+#endif
+    for (int i = 0; i < trans->initiator2target_buffer_size; ++i) {
+        serial_write_byte(trans->initiator2target_buffer[i]);
+        sync_recv();
+        checksum += trans->initiator2target_buffer[i];
+    }
+    serial_write_byte(checksum ^ 7);
+    sync_recv();
+
+    serial_delay();
+    serial_delay();  // read mid pulses
+
+    // receive data from the slave
+    uint8_t checksum_computed = 0;
+    for (int i = 0; i < trans->target2initiator_buffer_size; ++i) {
+        trans->target2initiator_buffer[i] = serial_read_byte();
+        sync_recv();
+        checksum_computed += trans->target2initiator_buffer[i];
+    }
+    checksum_computed ^= 7;
+    uint8_t checksum_received = serial_read_byte();
+
+    sync_recv();
+    serial_delay();
+
+    if ((checksum_computed) != (checksum_received)) {
+        dprintf("serial::FAIL[%u,%u,%u]\n", checksum_computed, checksum_received, sstd_index);
+        serial_output();
+        serial_high();
+
+        chSysUnlock();
+        return TRANSACTION_DATA_ERROR;
+    }
+
+    // always, release the line when not in use
+    serial_high();
+    serial_output();
+
+    chSysUnlock();
+    return TRANSACTION_END;
+}

drivers/chibios/serial.h

@@ -0,0 +1,62 @@
+#pragma once
+
+#include <stdbool.h>
+
+// /////////////////////////////////////////////////////////////////
+// Need Soft Serial defines in config.h
+// /////////////////////////////////////////////////////////////////
+// ex.
+//  #define SOFT_SERIAL_PIN ??   // ?? = D0,D1,D2,D3,E6
+//  OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5
+//                                               //  1: about 137kbps (default)
+//                                               //  2: about 75kbps
+//                                               //  3: about 39kbps
+//                                               //  4: about 26kbps
+//                                               //  5: about 20kbps
+//
+// //// USE simple API (using signle-type transaction function)
+//   /* nothing */
+// //// USE flexible API (using multi-type transaction function)
+//   #define SERIAL_USE_MULTI_TRANSACTION
+//
+// /////////////////////////////////////////////////////////////////
+
+// Soft Serial Transaction Descriptor
+typedef struct _SSTD_t {
+    uint8_t *status;
+    uint8_t  initiator2target_buffer_size;
+    uint8_t *initiator2target_buffer;
+    uint8_t  target2initiator_buffer_size;
+    uint8_t *target2initiator_buffer;
+} SSTD_t;
+#define TID_LIMIT(table) (sizeof(table) / sizeof(SSTD_t))
+
+// initiator is transaction start side
+void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size);
+// target is interrupt accept side
+void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size);
+
+// initiator result
+#define TRANSACTION_END 0
+#define TRANSACTION_NO_RESPONSE 0x1
+#define TRANSACTION_DATA_ERROR 0x2
+#define TRANSACTION_TYPE_ERROR 0x4
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+int soft_serial_transaction(void);
+#else
+int soft_serial_transaction(int sstd_index);
+#endif
+
+// target status
+// *SSTD_t.status has
+//   initiator:
+//       TRANSACTION_END
+//    or TRANSACTION_NO_RESPONSE
+//    or TRANSACTION_DATA_ERROR
+//   target:
+//       TRANSACTION_DATA_ERROR
+//    or TRANSACTION_ACCEPTED
+#define TRANSACTION_ACCEPTED 0x8
+#ifdef SERIAL_USE_MULTI_TRANSACTION
+int soft_serial_get_and_clean_status(int sstd_index);
+#endif

drivers/chibios/serial_usart.c

@@ -0,0 +1,234 @@
+#include "quantum.h"
+#include "serial.h"
+#include "printf.h"
+
+#include "ch.h"
+#include "hal.h"
+
+#ifndef USART_CR1_M0
+#    define USART_CR1_M0 USART_CR1_M  // some platforms (f1xx) dont have this so
+#endif
+
+#ifndef USE_GPIOV1
+// The default PAL alternate modes are used to signal that the pins are used for USART
+#    ifndef SERIAL_USART_TX_PAL_MODE
+#        define SERIAL_USART_TX_PAL_MODE 7
+#    endif
+#endif
+
+#ifndef SERIAL_USART_DRIVER
+#    define SERIAL_USART_DRIVER SD1
+#endif
+
+#ifndef SERIAL_USART_CR1
+#    define SERIAL_USART_CR1 (USART_CR1_PCE | USART_CR1_PS | USART_CR1_M0)  // parity enable, odd parity, 9 bit length
+#endif
+
+#ifndef SERIAL_USART_CR2
+#    define SERIAL_USART_CR2 (USART_CR2_STOP_1)  // 2 stop bits
+#endif
+
+#ifndef SERIAL_USART_CR3
+#    define SERIAL_USART_CR3 0
+#endif
+
+#ifdef SOFT_SERIAL_PIN
+#    define SERIAL_USART_TX_PIN SOFT_SERIAL_PIN
+#endif
+
+#ifndef SELECT_SOFT_SERIAL_SPEED
+#    define SELECT_SOFT_SERIAL_SPEED 1
+#endif
+
+#ifdef SERIAL_USART_SPEED
+// Allow advanced users to directly set SERIAL_USART_SPEED
+#elif SELECT_SOFT_SERIAL_SPEED == 0
+#    define SERIAL_USART_SPEED 460800
+#elif SELECT_SOFT_SERIAL_SPEED == 1
+#    define SERIAL_USART_SPEED 230400
+#elif SELECT_SOFT_SERIAL_SPEED == 2
+#    define SERIAL_USART_SPEED 115200
+#elif SELECT_SOFT_SERIAL_SPEED == 3
+#    define SERIAL_USART_SPEED 57600
+#elif SELECT_SOFT_SERIAL_SPEED == 4
+#    define SERIAL_USART_SPEED 38400
+#elif SELECT_SOFT_SERIAL_SPEED == 5
+#    define SERIAL_USART_SPEED 19200
+#else
+#    error invalid SELECT_SOFT_SERIAL_SPEED value
+#endif
+
+#define TIMEOUT 100
+#define HANDSHAKE_MAGIC 7
+
+static inline msg_t sdWriteHalfDuplex(SerialDriver* driver, uint8_t* data, uint8_t size) {
+    msg_t ret = sdWrite(driver, data, size);
+
+    // Half duplex requires us to read back the data we just wrote - just throw it away
+    uint8_t dump[size];
+    sdRead(driver, dump, size);
+
+    return ret;
+}
+#undef sdWrite
+#define sdWrite sdWriteHalfDuplex
+
+static inline msg_t sdWriteTimeoutHalfDuplex(SerialDriver* driver, uint8_t* data, uint8_t size, uint32_t timeout) {
+    msg_t ret = sdWriteTimeout(driver, data, size, timeout);
+
+    // Half duplex requires us to read back the data we just wrote - just throw it away
+    uint8_t dump[size];
+    sdReadTimeout(driver, dump, size, timeout);
+
+    return ret;
+}
+#undef sdWriteTimeout
+#define sdWriteTimeout sdWriteTimeoutHalfDuplex
+
+static inline void sdClear(SerialDriver* driver) {
+    while (sdGetTimeout(driver, TIME_IMMEDIATE) != MSG_TIMEOUT) {
+        // Do nothing with the data
+    }
+}
+
+static SerialConfig sdcfg = {
+    (SERIAL_USART_SPEED),  // speed - mandatory
+    (SERIAL_USART_CR1),    // CR1
+    (SERIAL_USART_CR2),    // CR2
+    (SERIAL_USART_CR3)     // CR3
+};
+
+void handle_soft_serial_slave(void);
+
+/*
+ * This thread runs on the slave and responds to transactions initiated
+ * by the master
+ */
+static THD_WORKING_AREA(waSlaveThread, 2048);
+static THD_FUNCTION(SlaveThread, arg) {
+    (void)arg;
+    chRegSetThreadName("slave_transport");
+
+    while (true) {
+        handle_soft_serial_slave();
+    }
+}
+
+__attribute__((weak)) void usart_init(void) {
+#if defined(USE_GPIOV1)
+    palSetLineMode(SERIAL_USART_TX_PIN, PAL_MODE_STM32_ALTERNATE_OPENDRAIN);
+#else
+    palSetLineMode(SERIAL_USART_TX_PIN, PAL_MODE_ALTERNATE(SERIAL_USART_TX_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN);
+#endif
+}
+
+void usart_master_init(void) {
+    usart_init();
+
+    sdcfg.cr3 |= USART_CR3_HDSEL;
+    sdStart(&SERIAL_USART_DRIVER, &sdcfg);
+}
+
+void usart_slave_init(void) {
+    usart_init();
+
+    sdcfg.cr3 |= USART_CR3_HDSEL;
+    sdStart(&SERIAL_USART_DRIVER, &sdcfg);
+
+    // Start transport thread
+    chThdCreateStatic(waSlaveThread, sizeof(waSlaveThread), HIGHPRIO, SlaveThread, NULL);
+}
+
+static SSTD_t* Transaction_table      = NULL;
+static uint8_t Transaction_table_size = 0;
+
+void soft_serial_initiator_init(SSTD_t* sstd_table, int sstd_table_size) {
+    Transaction_table      = sstd_table;
+    Transaction_table_size = (uint8_t)sstd_table_size;
+
+    usart_master_init();
+}
+
+void soft_serial_target_init(SSTD_t* sstd_table, int sstd_table_size) {
+    Transaction_table      = sstd_table;
+    Transaction_table_size = (uint8_t)sstd_table_size;
+
+    usart_slave_init();
+}
+
+void handle_soft_serial_slave(void) {
+    uint8_t sstd_index = sdGet(&SERIAL_USART_DRIVER);  // first chunk is always transaction id
+    SSTD_t* trans      = &Transaction_table[sstd_index];
+
+    // Always write back the sstd_index as part of a basic handshake
+    sstd_index ^= HANDSHAKE_MAGIC;
+    sdWrite(&SERIAL_USART_DRIVER, &sstd_index, sizeof(sstd_index));
+
+    if (trans->initiator2target_buffer_size) {
+        sdRead(&SERIAL_USART_DRIVER, trans->initiator2target_buffer, trans->initiator2target_buffer_size);
+    }
+
+    if (trans->target2initiator_buffer_size) {
+        sdWrite(&SERIAL_USART_DRIVER, trans->target2initiator_buffer, trans->target2initiator_buffer_size);
+    }
+
+    if (trans->status) {
+        *trans->status = TRANSACTION_ACCEPTED;
+    }
+}
+
+/////////
+//  start transaction by initiator
+//
+// int  soft_serial_transaction(int sstd_index)
+//
+// Returns:
+//    TRANSACTION_END
+//    TRANSACTION_NO_RESPONSE
+//    TRANSACTION_DATA_ERROR
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+int soft_serial_transaction(void) {
+    uint8_t sstd_index = 0;
+#else
+int soft_serial_transaction(int index) {
+    uint8_t sstd_index = index;
+#endif
+
+    if (sstd_index > Transaction_table_size) return TRANSACTION_TYPE_ERROR;
+    SSTD_t* trans = &Transaction_table[sstd_index];
+    msg_t   res   = 0;
+
+    sdClear(&SERIAL_USART_DRIVER);
+
+    // First chunk is always transaction id
+    sdWriteTimeout(&SERIAL_USART_DRIVER, &sstd_index, sizeof(sstd_index), TIME_MS2I(TIMEOUT));
+
+    uint8_t sstd_index_shake = 0xFF;
+
+    // Which we always read back first so that we can error out correctly
+    //   - due to the half duplex limitations on return codes, we always have to read *something*
+    //   - without the read, write only transactions *always* succeed, even during the boot process where the slave is not ready
+    res = sdReadTimeout(&SERIAL_USART_DRIVER, &sstd_index_shake, sizeof(sstd_index_shake), TIME_MS2I(TIMEOUT));
+    if (res < 0 || (sstd_index_shake != (sstd_index ^ HANDSHAKE_MAGIC))) {
+        dprintf("serial::usart_shake NO_RESPONSE\n");
+        return TRANSACTION_NO_RESPONSE;
+    }
+
+    if (trans->initiator2target_buffer_size) {
+        res = sdWriteTimeout(&SERIAL_USART_DRIVER, trans->initiator2target_buffer, trans->initiator2target_buffer_size, TIME_MS2I(TIMEOUT));
+        if (res < 0) {
+            dprintf("serial::usart_transmit NO_RESPONSE\n");
+            return TRANSACTION_NO_RESPONSE;
+        }
+    }
+
+    if (trans->target2initiator_buffer_size) {
+        res = sdReadTimeout(&SERIAL_USART_DRIVER, trans->target2initiator_buffer, trans->target2initiator_buffer_size, TIME_MS2I(TIMEOUT));
+        if (res < 0) {
+            dprintf("serial::usart_receive NO_RESPONSE\n");
+            return TRANSACTION_NO_RESPONSE;
+        }
+    }
+
+    return TRANSACTION_END;
+}

drivers/chibios/spi_master.c

@@ -0,0 +1,137 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "spi_master.h"
+#include "quantum.h"
+#include "timer.h"
+
+static pin_t     currentSlavePin = NO_PIN;
+static SPIConfig spiConfig       = {false, NULL, 0, 0, 0, 0};
+
+__attribute__((weak)) void spi_init(void) {
+    // Try releasing special pins for a short time
+    palSetPadMode(PAL_PORT(SPI_SCK_PIN), PAL_PAD(SPI_SCK_PIN), PAL_MODE_INPUT);
+    palSetPadMode(PAL_PORT(SPI_MOSI_PIN), PAL_PAD(SPI_MOSI_PIN), PAL_MODE_INPUT);
+    palSetPadMode(PAL_PORT(SPI_MISO_PIN), PAL_PAD(SPI_MISO_PIN), PAL_MODE_INPUT);
+
+    chThdSleepMilliseconds(10);
+#if defined(USE_GPIOV1)
+    palSetPadMode(PAL_PORT(SPI_SCK_PIN), PAL_PAD(SPI_SCK_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+    palSetPadMode(PAL_PORT(SPI_MOSI_PIN), PAL_PAD(SPI_MOSI_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+    palSetPadMode(PAL_PORT(SPI_MISO_PIN), PAL_PAD(SPI_MISO_PIN), PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+#else
+    palSetPadMode(PAL_PORT(SPI_SCK_PIN), PAL_PAD(SPI_SCK_PIN), PAL_MODE_ALTERNATE(SPI_SCK_PAL_MODE) | PAL_STM32_OTYPE_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
+    palSetPadMode(PAL_PORT(SPI_MOSI_PIN), PAL_PAD(SPI_MOSI_PIN), PAL_MODE_ALTERNATE(SPI_MOSI_PAL_MODE) | PAL_STM32_OTYPE_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
+    palSetPadMode(PAL_PORT(SPI_MISO_PIN), PAL_PAD(SPI_MISO_PIN), PAL_MODE_ALTERNATE(SPI_MISO_PAL_MODE) | PAL_STM32_OTYPE_PUSHPULL | PAL_STM32_OSPEED_HIGHEST);
+#endif
+}
+
+bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor) {
+    if (currentSlavePin != NO_PIN || slavePin == NO_PIN) {
+        return false;
+    }
+
+    uint16_t roundedDivisor = 2;
+    while (roundedDivisor < divisor) {
+        roundedDivisor <<= 1;
+    }
+
+    if (roundedDivisor < 2 || roundedDivisor > 256) {
+        return false;
+    }
+
+    spiConfig.cr1 = 0;
+
+    if (lsbFirst) {
+        spiConfig.cr1 |= SPI_CR1_LSBFIRST;
+    }
+
+    switch (mode) {
+        case 0:
+            break;
+        case 1:
+            spiConfig.cr1 |= SPI_CR1_CPHA;
+            break;
+        case 2:
+            spiConfig.cr1 |= SPI_CR1_CPOL;
+            break;
+        case 3:
+            spiConfig.cr1 |= SPI_CR1_CPHA | SPI_CR1_CPOL;
+            break;
+    }
+
+    switch (roundedDivisor) {
+        case 2:
+            break;
+        case 4:
+            spiConfig.cr1 |= SPI_CR1_BR_0;
+            break;
+        case 8:
+            spiConfig.cr1 |= SPI_CR1_BR_1;
+            break;
+        case 16:
+            spiConfig.cr1 |= SPI_CR1_BR_1 | SPI_CR1_BR_0;
+            break;
+        case 32:
+            spiConfig.cr1 |= SPI_CR1_BR_2;
+            break;
+        case 64:
+            spiConfig.cr1 |= SPI_CR1_BR_2 | SPI_CR1_BR_0;
+            break;
+        case 128:
+            spiConfig.cr1 |= SPI_CR1_BR_2 | SPI_CR1_BR_1;
+            break;
+        case 256:
+            spiConfig.cr1 |= SPI_CR1_BR_2 | SPI_CR1_BR_1 | SPI_CR1_BR_0;
+            break;
+    }
+
+    currentSlavePin  = slavePin;
+    spiConfig.ssport = PAL_PORT(slavePin);
+    spiConfig.sspad  = PAL_PAD(slavePin);
+
+    setPinOutput(slavePin);
+    spiStart(&SPI_DRIVER, &spiConfig);
+    spiSelect(&SPI_DRIVER);
+
+    return true;
+}
+
+spi_status_t spi_write(uint8_t data) { return spi_transmit(&data, 1); }
+
+spi_status_t spi_read(void) {
+    uint8_t data = 0;
+    spi_receive(&data, 1);
+    return data;
+}
+
+spi_status_t spi_transmit(const uint8_t *data, uint16_t length) {
+    spiSend(&SPI_DRIVER, length, data);
+    return SPI_STATUS_SUCCESS;
+}
+
+spi_status_t spi_receive(uint8_t *data, uint16_t length) {
+    spiReceive(&SPI_DRIVER, length, data);
+    return SPI_STATUS_SUCCESS;
+}
+
+void spi_stop(void) {
+    if (currentSlavePin != NO_PIN) {
+        spiUnselect(&SPI_DRIVER);
+        spiStop(&SPI_DRIVER);
+        currentSlavePin = NO_PIN;
+    }
+}

drivers/chibios/spi_master.h

@@ -0,0 +1,78 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <ch.h>
+#include <hal.h>
+#include <quantum.h>
+
+#ifndef SPI_DRIVER
+#    define SPI_DRIVER SPID2
+#endif
+
+#ifndef SPI_SCK_PIN
+#    define SPI_SCK_PIN B13
+#endif
+
+#ifndef SPI_SCK_PAL_MODE
+#    define SPI_SCK_PAL_MODE 5
+#endif
+
+#ifndef SPI_MOSI_PIN
+#    define SPI_MOSI_PIN B15
+#endif
+
+#ifndef SPI_MOSI_PAL_MODE
+#    define SPI_MOSI_PAL_MODE 5
+#endif
+
+#ifndef SPI_MISO_PIN
+#    define SPI_MISO_PIN B14
+#endif
+
+#ifndef SPI_MISO_PAL_MODE
+#    define SPI_MISO_PAL_MODE 5
+#endif
+
+typedef int16_t spi_status_t;
+
+#define SPI_STATUS_SUCCESS (0)
+#define SPI_STATUS_ERROR (-1)
+#define SPI_STATUS_TIMEOUT (-2)
+
+#define SPI_TIMEOUT_IMMEDIATE (0)
+#define SPI_TIMEOUT_INFINITE (0xFFFF)
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+void spi_init(void);
+
+bool spi_start(pin_t slavePin, bool lsbFirst, uint8_t mode, uint16_t divisor);
+
+spi_status_t spi_write(uint8_t data);
+
+spi_status_t spi_read(void);
+
+spi_status_t spi_transmit(const uint8_t *data, uint16_t length);
+
+spi_status_t spi_receive(uint8_t *data, uint16_t length);
+
+void spi_stop(void);
+#ifdef __cplusplus
+}
+#endif

drivers/chibios/ws2812.c

@@ -0,0 +1,103 @@
+#include "quantum.h"
+#include "ws2812.h"
+#include "ch.h"
+#include "hal.h"
+
+/* Adapted from https://github.com/bigjosh/SimpleNeoPixelDemo/ */
+
+#ifndef NOP_FUDGE
+#    if defined(STM32F1XX) || defined(STM32F1xx) || defined(STM32F0XX) || defined(STM32F0xx) || defined(STM32F3XX) || defined(STM32F3xx) || defined(STM32L0XX) || defined(STM32L0xx)
+#        define NOP_FUDGE 0.4
+#    else
+#        error("NOP_FUDGE configuration required")
+#        define NOP_FUDGE 1  // this just pleases the compile so the above error is easier to spot
+#    endif
+#endif
+
+// Push Pull or Open Drain Configuration
+// Default Push Pull
+#ifndef WS2812_EXTERNAL_PULLUP
+#    define WS2812_OUTPUT_MODE PAL_MODE_OUTPUT_PUSHPULL
+#else
+#    define WS2812_OUTPUT_MODE PAL_MODE_OUTPUT_OPENDRAIN
+#endif
+
+#define NUMBER_NOPS 6
+#define CYCLES_PER_SEC (STM32_SYSCLK / NUMBER_NOPS * NOP_FUDGE)
+#define NS_PER_SEC (1000000000L)  // Note that this has to be SIGNED since we want to be able to check for negative values of derivatives
+#define NS_PER_CYCLE (NS_PER_SEC / CYCLES_PER_SEC)
+#define NS_TO_CYCLES(n) ((n) / NS_PER_CYCLE)
+
+#define wait_ns(x)                                  \
+    do {                                            \
+        for (int i = 0; i < NS_TO_CYCLES(x); i++) { \
+            __asm__ volatile("nop\n\t"              \
+                             "nop\n\t"              \
+                             "nop\n\t"              \
+                             "nop\n\t"              \
+                             "nop\n\t"              \
+                             "nop\n\t");            \
+        }                                           \
+    } while (0)
+
+// These are the timing constraints taken mostly from the WS2812 datasheets
+// These are chosen to be conservative and avoid problems rather than for maximum throughput
+
+#define T1H 900           // Width of a 1 bit in ns
+#define T1L (1250 - T1H)  // Width of a 1 bit in ns
+
+#define T0H 350           // Width of a 0 bit in ns
+#define T0L (1250 - T0H)  // Width of a 0 bit in ns
+
+// The reset gap can be 6000 ns, but depending on the LED strip it may have to be increased
+// to values like 600000 ns. If it is too small, the pixels will show nothing most of the time.
+#define RES (1000 * WS2812_TRST_US)  // Width of the low gap between bits to cause a frame to latch
+
+void sendByte(uint8_t byte) {
+    // WS2812 protocol wants most significant bits first
+    for (unsigned char bit = 0; bit < 8; bit++) {
+        bool is_one = byte & (1 << (7 - bit));
+        // using something like wait_ns(is_one ? T1L : T0L) here throws off timings
+        if (is_one) {
+            // 1
+            writePinHigh(RGB_DI_PIN);
+            wait_ns(T1H);
+            writePinLow(RGB_DI_PIN);
+            wait_ns(T1L);
+        } else {
+            // 0
+            writePinHigh(RGB_DI_PIN);
+            wait_ns(T0H);
+            writePinLow(RGB_DI_PIN);
+            wait_ns(T0L);
+        }
+    }
+}
+
+void ws2812_init(void) { palSetLineMode(RGB_DI_PIN, WS2812_OUTPUT_MODE); }
+
+// Setleds for standard RGB
+void ws2812_setleds(LED_TYPE *ledarray, uint16_t leds) {
+    static bool s_init = false;
+    if (!s_init) {
+        ws2812_init();
+        s_init = true;
+    }
+
+    // this code is very time dependent, so we need to disable interrupts
+    chSysLock();
+
+    for (uint8_t i = 0; i < leds; i++) {
+        // WS2812 protocol dictates grb order
+        sendByte(ledarray[i].g);
+        sendByte(ledarray[i].r);
+        sendByte(ledarray[i].b);
+#ifdef RGBW
+        sendByte(ledarray[i].w);
+#endif
+    }
+
+    wait_ns(RES);
+
+    chSysUnlock();
+}

drivers/chibios/ws2812_pwm.c

@@ -0,0 +1,218 @@
+#include "ws2812.h"
+#include "quantum.h"
+#include "hal.h"
+
+/* Adapted from https://github.com/joewa/WS2812-LED-Driver_ChibiOS/ */
+
+#ifdef RGBW
+#    error "RGBW not supported"
+#endif
+
+#ifndef WS2812_PWM_DRIVER
+#    define WS2812_PWM_DRIVER PWMD2  // TIMx
+#endif
+#ifndef WS2812_PWM_CHANNEL
+#    define WS2812_PWM_CHANNEL 2  // Channel
+#endif
+#ifndef WS2812_PWM_PAL_MODE
+#    define WS2812_PWM_PAL_MODE 2  // DI Pin's alternate function value
+#endif
+#ifndef WS2812_DMA_STREAM
+#    define WS2812_DMA_STREAM STM32_DMA1_STREAM2  // DMA Stream for TIMx_UP
+#endif
+#ifndef WS2812_DMA_CHANNEL
+#    define WS2812_DMA_CHANNEL 2  // DMA Channel for TIMx_UP
+#endif
+
+// Push Pull or Open Drain Configuration
+// Default Push Pull
+#ifndef WS2812_EXTERNAL_PULLUP
+#    if defined(USE_GPIOV1)
+#        define WS2812_OUTPUT_MODE PAL_MODE_STM32_ALTERNATE_PUSHPULL
+#    else
+#        define WS2812_OUTPUT_MODE PAL_MODE_ALTERNATE(WS2812_PWM_PAL_MODE) | PAL_STM32_OTYPE_PUSHPULL | PAL_STM32_OSPEED_HIGHEST | PAL_STM32_PUPDR_FLOATING
+#    endif
+#else
+#    if defined(USE_GPIOV1)
+#        define WS2812_OUTPUT_MODE PAL_MODE_STM32_ALTERNATE_OPENDRAIN
+#    else
+#        define WS2812_OUTPUT_MODE PAL_MODE_ALTERNATE(WS2812_PWM_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_OSPEED_HIGHEST | PAL_STM32_PUPDR_FLOATING
+#    endif
+#endif
+
+#ifndef WS2812_PWM_TARGET_PERIOD
+//#    define WS2812_PWM_TARGET_PERIOD 800000 // Original code is 800k...?
+#    define WS2812_PWM_TARGET_PERIOD 80000  // TODO: work out why 10x less on f303/f4x1
+#endif
+
+/* --- PRIVATE CONSTANTS ---------------------------------------------------- */
+
+#define WS2812_PWM_FREQUENCY (STM32_SYSCLK / 2)                             /**< Clock frequency of PWM, must be valid with respect to system clock! */
+#define WS2812_PWM_PERIOD (WS2812_PWM_FREQUENCY / WS2812_PWM_TARGET_PERIOD) /**< Clock period in ticks. 1 / 800kHz = 1.25 uS (as per datasheet) */
+
+/**
+ * @brief   Number of bit-periods to hold the data line low at the end of a frame
+ *
+ * The reset period for each frame is defined in WS2812_TRST_US.
+ * Calculate the number of zeroes to add at the end assuming 1.25 uS/bit:
+ */
+#define WS2812_RESET_BIT_N (1000 * WS2812_TRST_US / 1250)
+#define WS2812_COLOR_BIT_N (RGBLED_NUM * 24)                   /**< Number of data bits */
+#define WS2812_BIT_N (WS2812_COLOR_BIT_N + WS2812_RESET_BIT_N) /**< Total number of bits in a frame */
+
+/**
+ * @brief   High period for a zero, in ticks
+ *
+ * Per the datasheet:
+ * WS2812:
+ * - T0H: 200 nS to 500 nS, inclusive
+ * - T0L: 650 nS to 950 nS, inclusive
+ * WS2812B:
+ * - T0H: 200 nS to 500 nS, inclusive
+ * - T0L: 750 nS to 1050 nS, inclusive
+ *
+ * The duty cycle is calculated for a high period of 350 nS.
+ */
+#define WS2812_DUTYCYCLE_0 (WS2812_PWM_FREQUENCY / (1000000000 / 350))
+
+/**
+ * @brief   High period for a one, in ticks
+ *
+ * Per the datasheet:
+ * WS2812:
+ * - T1H: 550 nS to 850 nS, inclusive
+ * - T1L: 450 nS to 750 nS, inclusive
+ * WS2812B:
+ * - T1H: 750 nS to 1050 nS, inclusive
+ * - T1L: 200 nS to 500 nS, inclusive
+ *
+ * The duty cycle is calculated for a high period of 800 nS.
+ * This is in the middle of the specifications of the WS2812 and WS2812B.
+ */
+#define WS2812_DUTYCYCLE_1 (WS2812_PWM_FREQUENCY / (1000000000 / 800))
+
+/* --- PRIVATE MACROS ------------------------------------------------------- */
+
+/**
+ * @brief   Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given bit
+ *
+ * @param[in] led:                  The led index [0, @ref RGBLED_NUM)
+ * @param[in] byte:                 The byte number [0, 2]
+ * @param[in] bit:                  The bit number [0, 7]
+ *
+ * @return                          The bit index
+ */
+#define WS2812_BIT(led, byte, bit) (24 * (led) + 8 * (byte) + (7 - (bit)))
+
+/**
+ * @brief   Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given red bit
+ *
+ * @note    The red byte is the middle byte in the color packet
+ *
+ * @param[in] led:                  The led index [0, @ref RGBLED_NUM)
+ * @param[in] bit:                  The bit number [0, 7]
+ *
+ * @return                          The bit index
+ */
+#define WS2812_RED_BIT(led, bit) WS2812_BIT((led), 1, (bit))
+
+/**
+ * @brief   Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given green bit
+ *
+ * @note    The red byte is the first byte in the color packet
+ *
+ * @param[in] led:                  The led index [0, @ref RGBLED_NUM)
+ * @param[in] bit:                  The bit number [0, 7]
+ *
+ * @return                          The bit index
+ */
+#define WS2812_GREEN_BIT(led, bit) WS2812_BIT((led), 0, (bit))
+
+/**
+ * @brief   Determine the index in @ref ws2812_frame_buffer "the frame buffer" of a given blue bit
+ *
+ * @note    The red byte is the last byte in the color packet
+ *
+ * @param[in] led:                  The led index [0, @ref RGBLED_NUM)
+ * @param[in] bit:                  The bit index [0, 7]
+ *
+ * @return                          The bit index
+ */
+#define WS2812_BLUE_BIT(led, bit) WS2812_BIT((led), 2, (bit))
+
+/* --- PRIVATE VARIABLES ---------------------------------------------------- */
+
+static uint32_t ws2812_frame_buffer[WS2812_BIT_N + 1]; /**< Buffer for a frame */
+
+/* --- PUBLIC FUNCTIONS ----------------------------------------------------- */
+/*
+ * Gedanke: Double-buffer type transactions: double buffer transfers using two memory pointers for
+the memory (while the DMA is reading/writing from/to a buffer, the application can
+write/read to/from the other buffer).
+ */
+
+void ws2812_init(void) {
+    // Initialize led frame buffer
+    uint32_t i;
+    for (i = 0; i < WS2812_COLOR_BIT_N; i++) ws2812_frame_buffer[i] = WS2812_DUTYCYCLE_0;      // All color bits are zero duty cycle
+    for (i = 0; i < WS2812_RESET_BIT_N; i++) ws2812_frame_buffer[i + WS2812_COLOR_BIT_N] = 0;  // All reset bits are zero
+
+    palSetLineMode(RGB_DI_PIN, WS2812_OUTPUT_MODE);
+
+    // PWM Configuration
+    //#pragma GCC diagnostic ignored "-Woverride-init"  // Turn off override-init warning for this struct. We use the overriding ability to set a "default" channel config
+    static const PWMConfig ws2812_pwm_config = {
+        .frequency = WS2812_PWM_FREQUENCY,
+        .period    = WS2812_PWM_PERIOD,  // Mit dieser Periode wird UDE-Event erzeugt und ein neuer Wert (Länge WS2812_BIT_N) vom DMA ins CCR geschrieben
+        .callback  = NULL,
+        .channels =
+            {
+                [0 ... 3]                = {.mode = PWM_OUTPUT_DISABLED, .callback = NULL},     // Channels default to disabled
+                [WS2812_PWM_CHANNEL - 1] = {.mode = PWM_OUTPUT_ACTIVE_HIGH, .callback = NULL},  // Turn on the channel we care about
+            },
+        .cr2  = 0,
+        .dier = TIM_DIER_UDE,  // DMA on update event for next period
+    };
+    //#pragma GCC diagnostic pop  // Restore command-line warning options
+
+    // Configure DMA
+    // dmaInit(); // Joe added this
+    dmaStreamAlloc(WS2812_DMA_STREAM - STM32_DMA1_STREAM1, 10, NULL, NULL);
+    dmaStreamSetPeripheral(WS2812_DMA_STREAM, &(WS2812_PWM_DRIVER.tim->CCR[WS2812_PWM_CHANNEL - 1]));  // Ziel ist der An-Zeit im Cap-Comp-Register
+    dmaStreamSetMemory0(WS2812_DMA_STREAM, ws2812_frame_buffer);
+    dmaStreamSetTransactionSize(WS2812_DMA_STREAM, WS2812_BIT_N);
+    dmaStreamSetMode(WS2812_DMA_STREAM, STM32_DMA_CR_CHSEL(WS2812_DMA_CHANNEL) | STM32_DMA_CR_DIR_M2P | STM32_DMA_CR_PSIZE_WORD | STM32_DMA_CR_MSIZE_WORD | STM32_DMA_CR_MINC | STM32_DMA_CR_CIRC | STM32_DMA_CR_PL(3));
+    // M2P: Memory 2 Periph; PL: Priority Level
+
+    // Start DMA
+    dmaStreamEnable(WS2812_DMA_STREAM);
+
+    // Configure PWM
+    // NOTE: It's required that preload be enabled on the timer channel CCR register. This is currently enabled in the
+    // ChibiOS driver code, so we don't have to do anything special to the timer. If we did, we'd have to start the timer,
+    // disable counting, enable the channel, and then make whatever configuration changes we need.
+    pwmStart(&WS2812_PWM_DRIVER, &ws2812_pwm_config);
+    pwmEnableChannel(&WS2812_PWM_DRIVER, WS2812_PWM_CHANNEL - 1, 0);  // Initial period is 0; output will be low until first duty cycle is DMA'd in
+}
+
+void ws2812_write_led(uint16_t led_number, uint8_t r, uint8_t g, uint8_t b) {
+    // Write color to frame buffer
+    for (uint8_t bit = 0; bit < 8; bit++) {
+        ws2812_frame_buffer[WS2812_RED_BIT(led_number, bit)]   = ((r >> bit) & 0x01) ? WS2812_DUTYCYCLE_1 : WS2812_DUTYCYCLE_0;
+        ws2812_frame_buffer[WS2812_GREEN_BIT(led_number, bit)] = ((g >> bit) & 0x01) ? WS2812_DUTYCYCLE_1 : WS2812_DUTYCYCLE_0;
+        ws2812_frame_buffer[WS2812_BLUE_BIT(led_number, bit)]  = ((b >> bit) & 0x01) ? WS2812_DUTYCYCLE_1 : WS2812_DUTYCYCLE_0;
+    }
+}
+
+// Setleds for standard RGB
+void ws2812_setleds(LED_TYPE* ledarray, uint16_t leds) {
+    static bool s_init = false;
+    if (!s_init) {
+        ws2812_init();
+        s_init = true;
+    }
+
+    for (uint16_t i = 0; i < leds; i++) {
+        ws2812_write_led(i, ledarray[i].r, ledarray[i].g, ledarray[i].b);
+    }
+}

drivers/chibios/ws2812_spi.c

@@ -0,0 +1,102 @@
+#include "quantum.h"
+#include "ws2812.h"
+
+/* Adapted from https://github.com/gamazeps/ws2812b-chibios-SPIDMA/ */
+
+#ifdef RGBW
+#    error "RGBW not supported"
+#endif
+
+// Define the spi your LEDs are plugged to here
+#ifndef WS2812_SPI
+#    define WS2812_SPI SPID1
+#endif
+
+#ifndef WS2812_SPI_MOSI_PAL_MODE
+#    define WS2812_SPI_MOSI_PAL_MODE 5
+#endif
+
+// Push Pull or Open Drain Configuration
+// Default Push Pull
+#ifndef WS2812_EXTERNAL_PULLUP
+#    if defined(USE_GPIOV1)
+#        define WS2812_OUTPUT_MODE PAL_MODE_STM32_ALTERNATE_PUSHPULL
+#    else
+#        define WS2812_OUTPUT_MODE PAL_MODE_ALTERNATE(WS2812_SPI_MOSI_PAL_MODE) | PAL_STM32_OTYPE_PUSHPULL
+#    endif
+#else
+#    if defined(USE_GPIOV1)
+#        define WS2812_OUTPUT_MODE PAL_MODE_STM32_ALTERNATE_OPENDRAIN
+#    else
+#        define WS2812_OUTPUT_MODE PAL_MODE_ALTERNATE(WS2812_SPI_MOSI_PAL_MODE) | PAL_STM32_OTYPE_OPENDRAIN
+#    endif
+#endif
+
+#define BYTES_FOR_LED_BYTE 4
+#define NB_COLORS 3
+#define BYTES_FOR_LED (BYTES_FOR_LED_BYTE * NB_COLORS)
+#define DATA_SIZE (BYTES_FOR_LED * RGBLED_NUM)
+#define RESET_SIZE (1000 * WS2812_TRST_US / (2 * 1250))
+#define PREAMBLE_SIZE 4
+
+static uint8_t txbuf[PREAMBLE_SIZE + DATA_SIZE + RESET_SIZE] = {0};
+
+/*
+ * As the trick here is to use the SPI to send a huge pattern of 0 and 1 to
+ * the ws2812b protocol, we use this helper function to translate bytes into
+ * 0s and 1s for the LED (with the appropriate timing).
+ */
+static uint8_t get_protocol_eq(uint8_t data, int pos) {
+    uint8_t eq = 0;
+    if (data & (1 << (2 * (3 - pos))))
+        eq = 0b1110;
+    else
+        eq = 0b1000;
+    if (data & (2 << (2 * (3 - pos))))
+        eq += 0b11100000;
+    else
+        eq += 0b10000000;
+    return eq;
+}
+
+static void set_led_color_rgb(LED_TYPE color, int pos) {
+    uint8_t* tx_start = &txbuf[PREAMBLE_SIZE];
+
+    for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + j] = get_protocol_eq(color.g, j);
+    for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + BYTES_FOR_LED_BYTE + j] = get_protocol_eq(color.r, j);
+    for (int j = 0; j < 4; j++) tx_start[BYTES_FOR_LED * pos + BYTES_FOR_LED_BYTE * 2 + j] = get_protocol_eq(color.b, j);
+}
+
+void ws2812_init(void) {
+    palSetLineMode(RGB_DI_PIN, WS2812_OUTPUT_MODE);
+
+    // TODO: more dynamic baudrate
+    static const SPIConfig spicfg = {
+        0, NULL, PAL_PORT(RGB_DI_PIN), PAL_PAD(RGB_DI_PIN),
+        SPI_CR1_BR_1 | SPI_CR1_BR_0  // baudrate : fpclk / 8 => 1tick is 0.32us (2.25 MHz)
+    };
+
+    spiAcquireBus(&WS2812_SPI);     /* Acquire ownership of the bus.    */
+    spiStart(&WS2812_SPI, &spicfg); /* Setup transfer parameters.       */
+    spiSelect(&WS2812_SPI);         /* Slave Select assertion.          */
+}
+
+void ws2812_setleds(LED_TYPE* ledarray, uint16_t leds) {
+    static bool s_init = false;
+    if (!s_init) {
+        ws2812_init();
+        s_init = true;
+    }
+
+    for (uint8_t i = 0; i < leds; i++) {
+        set_led_color_rgb(ledarray[i], i);
+    }
+
+    // Send async - each led takes ~0.03ms, 50 leds ~1.5ms, animations flushing faster than send will cause issues.
+    // Instead spiSend can be used to send synchronously (or the thread logic can be added back).
+#ifdef WS2812_SPI_SYNC
+    spiSend(&WS2812_SPI, sizeof(txbuf) / sizeof(txbuf[0]), txbuf);
+#else
+    spiStartSend(&WS2812_SPI, sizeof(txbuf) / sizeof(txbuf[0]), txbuf);
+#endif
+}

drivers/eeprom/eeprom_custom.c-template

@@ -0,0 +1,46 @@
+/* Copyright 2019 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "eeprom_driver.h"
+
+void eeprom_driver_init(void) {
+    /* Any initialisation code */
+ }
+
+void eeprom_driver_erase(void) {
+    /* Wipe out the EEPROM, setting values to zero */
+}
+
+void eeprom_read_block(void *buf, const void *addr, size_t len) {
+    /*
+        Read a block of data:
+            buf: target buffer
+            addr: 0-based offset within the EEPROM
+            len: length to read
+     */
+}
+
+void eeprom_write_block(const void *buf, void *addr, size_t len) {
+    /*
+        Write a block of data:
+            buf: target buffer
+            addr: 0-based offset within the EEPROM
+            len: length to write
+     */
+}

drivers/eeprom/eeprom_driver.c

@@ -0,0 +1,73 @@
+/* Copyright 2019 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "eeprom_driver.h"
+
+uint8_t eeprom_read_byte(const uint8_t *addr) {
+    uint8_t ret = 0;
+    eeprom_read_block(&ret, addr, 1);
+    return ret;
+}
+
+uint16_t eeprom_read_word(const uint16_t *addr) {
+    uint16_t ret = 0;
+    eeprom_read_block(&ret, addr, 2);
+    return ret;
+}
+
+uint32_t eeprom_read_dword(const uint32_t *addr) {
+    uint32_t ret = 0;
+    eeprom_read_block(&ret, addr, 4);
+    return ret;
+}
+
+void eeprom_write_byte(uint8_t *addr, uint8_t value) { eeprom_write_block(&value, addr, 1); }
+
+void eeprom_write_word(uint16_t *addr, uint16_t value) { eeprom_write_block(&value, addr, 2); }
+
+void eeprom_write_dword(uint32_t *addr, uint32_t value) { eeprom_write_block(&value, addr, 4); }
+
+void eeprom_update_block(const void *buf, void *addr, size_t len) {
+    uint8_t read_buf[len];
+    eeprom_read_block(read_buf, addr, len);
+    if (memcmp(buf, read_buf, len) != 0) {
+        eeprom_write_block(buf, addr, len);
+    }
+}
+
+void eeprom_update_byte(uint8_t *addr, uint8_t value) {
+    uint8_t orig = eeprom_read_byte(addr);
+    if (orig != value) {
+        eeprom_write_byte(addr, value);
+    }
+}
+
+void eeprom_update_word(uint16_t *addr, uint16_t value) {
+    uint16_t orig = eeprom_read_word(addr);
+    if (orig != value) {
+        eeprom_write_word(addr, value);
+    }
+}
+
+void eeprom_update_dword(uint32_t *addr, uint32_t value) {
+    uint32_t orig = eeprom_read_dword(addr);
+    if (orig != value) {
+        eeprom_write_dword(addr, value);
+    }
+}

drivers/eeprom/eeprom_driver.h

@@ -0,0 +1,22 @@
+/* Copyright 2019 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "eeprom.h"
+
+void eeprom_driver_init(void);
+void eeprom_driver_erase(void);

drivers/eeprom/eeprom_i2c.c

@@ -0,0 +1,129 @@
+/* Copyright 2019 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+/*
+    Note that the implementations of eeprom_XXXX_YYYY on AVR are normally
+    provided by avr-libc. The same functions are reimplemented below and are
+    rerouted to the external i2c equivalent.
+
+    Seemingly, as this is compiled from within QMK, the object file generated
+    during the build overrides the avr-libc implementation during the linking
+    stage.
+
+    On other platforms such as ARM, there are no provided implementations, so
+    there is nothing to override during linkage.
+*/
+
+#include "wait.h"
+#include "i2c_master.h"
+#include "eeprom.h"
+#include "eeprom_i2c.h"
+
+// #define DEBUG_EEPROM_OUTPUT
+
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+#    include "timer.h"
+#    include "debug.h"
+#endif  // DEBUG_EEPROM_OUTPUT
+
+static inline void init_i2c_if_required(void) {
+    static int done = 0;
+    if (!done) {
+        i2c_init();
+        done = 1;
+    }
+}
+
+static inline void fill_target_address(uint8_t *buffer, const void *addr) {
+    uintptr_t p = (uintptr_t)addr;
+    for (int i = 0; i < EXTERNAL_EEPROM_ADDRESS_SIZE; ++i) {
+        buffer[EXTERNAL_EEPROM_ADDRESS_SIZE - 1 - i] = p & 0xFF;
+        p >>= 8;
+    }
+}
+
+void eeprom_driver_init(void) {}
+
+void eeprom_driver_erase(void) {
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+    uint32_t start = timer_read32();
+#endif
+
+    uint8_t buf[EXTERNAL_EEPROM_PAGE_SIZE];
+    memset(buf, 0x00, EXTERNAL_EEPROM_PAGE_SIZE);
+    for (uint32_t addr = 0; addr < EXTERNAL_EEPROM_BYTE_COUNT; addr += EXTERNAL_EEPROM_PAGE_SIZE) {
+        eeprom_write_block(buf, (void *)(uintptr_t)addr, EXTERNAL_EEPROM_PAGE_SIZE);
+    }
+
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+    dprintf("EEPROM erase took %ldms to complete\n", ((long)(timer_read32() - start)));
+#endif
+}
+
+void eeprom_read_block(void *buf, const void *addr, size_t len) {
+    uint8_t complete_packet[EXTERNAL_EEPROM_ADDRESS_SIZE];
+    fill_target_address(complete_packet, addr);
+
+    init_i2c_if_required();
+    i2c_transmit(EXTERNAL_EEPROM_I2C_ADDRESS((uintptr_t)addr), complete_packet, EXTERNAL_EEPROM_ADDRESS_SIZE, 100);
+    i2c_receive(EXTERNAL_EEPROM_I2C_ADDRESS((uintptr_t)addr), buf, len, 100);
+
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+    dprintf("[EEPROM R] 0x%04X: ", ((int)addr));
+    for (size_t i = 0; i < len; ++i) {
+        dprintf(" %02X", (int)(((uint8_t *)buf)[i]));
+    }
+    dprintf("\n");
+#endif  // DEBUG_EEPROM_OUTPUT
+}
+
+void eeprom_write_block(const void *buf, void *addr, size_t len) {
+    uint8_t   complete_packet[EXTERNAL_EEPROM_ADDRESS_SIZE + EXTERNAL_EEPROM_PAGE_SIZE];
+    uint8_t * read_buf    = (uint8_t *)buf;
+    uintptr_t target_addr = (uintptr_t)addr;
+
+    init_i2c_if_required();
+    while (len > 0) {
+        uintptr_t page_offset  = target_addr % EXTERNAL_EEPROM_PAGE_SIZE;
+        int       write_length = EXTERNAL_EEPROM_PAGE_SIZE - page_offset;
+        if (write_length > len) {
+            write_length = len;
+        }
+
+        fill_target_address(complete_packet, (const void *)target_addr);
+        for (uint8_t i = 0; i < write_length; i++) {
+            complete_packet[EXTERNAL_EEPROM_ADDRESS_SIZE + i] = read_buf[i];
+        }
+
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+        dprintf("[EEPROM W] 0x%04X: ", ((int)target_addr));
+        for (uint8_t i = 0; i < write_length; i++) {
+            dprintf(" %02X", (int)(read_buf[i]));
+        }
+        dprintf("\n");
+#endif  // DEBUG_EEPROM_OUTPUT
+
+        i2c_transmit(EXTERNAL_EEPROM_I2C_ADDRESS((uintptr_t)addr), complete_packet, EXTERNAL_EEPROM_ADDRESS_SIZE + write_length, 100);
+        wait_ms(EXTERNAL_EEPROM_WRITE_TIME);
+
+        read_buf += write_length;
+        target_addr += write_length;
+        len -= write_length;
+    }
+}

drivers/eeprom/eeprom_i2c.h

@@ -0,0 +1,115 @@
+/* Copyright 2019 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/*
+    Default device configurations:
+
+    For the Sparkfun Qwiic I2C EEPROM module: https://www.sparkfun.com/products/14764
+        #define EEPROM_I2C_CAT24C512 // (part number 24512A)
+        #define EEPROM_I2C_RM24C512C // (part number 24512C)
+
+    For the Sparkfun I2C EEPROM chip: https://www.sparkfun.com/products/525
+        #define EEPROM_I2C_24LC256
+
+    For the Adafruit I2C FRAM chip: https://www.adafruit.com/product/1895
+        #define EEPROM_I2C_MB85RC256V
+*/
+#if defined(EEPROM_I2C_CAT24C512)
+#    define EXTERNAL_EEPROM_BYTE_COUNT 65536
+#    define EXTERNAL_EEPROM_PAGE_SIZE 128
+#    define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+#    define EXTERNAL_EEPROM_WRITE_TIME 5
+#elif defined(EEPROM_I2C_RM24C512C)
+#    define EXTERNAL_EEPROM_BYTE_COUNT 65536
+#    define EXTERNAL_EEPROM_PAGE_SIZE 128
+#    define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+#    define EXTERNAL_EEPROM_WRITE_TIME 3
+#elif defined(EEPROM_I2C_24LC256)
+#    define EXTERNAL_EEPROM_BYTE_COUNT 32768
+#    define EXTERNAL_EEPROM_PAGE_SIZE 64
+#    define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+#    define EXTERNAL_EEPROM_WRITE_TIME 5
+#elif defined(EEPROM_I2C_24LC128)
+#    define EXTERNAL_EEPROM_BYTE_COUNT 16384
+#    define EXTERNAL_EEPROM_PAGE_SIZE 64
+#    define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+#    define EXTERNAL_EEPROM_WRITE_TIME 5
+#elif defined(EEPROM_I2C_MB85RC256V)
+#    define EXTERNAL_EEPROM_BYTE_COUNT 32768
+#    define EXTERNAL_EEPROM_PAGE_SIZE 128
+#    define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+#    define EXTERNAL_EEPROM_WRITE_TIME 0
+#endif
+
+/*
+    The base I2C address of the EEPROM.
+    This needs to be shifted up by 1, to match i2c_master requirements.
+*/
+#ifndef EXTERNAL_EEPROM_I2C_BASE_ADDRESS
+#    define EXTERNAL_EEPROM_I2C_BASE_ADDRESS 0b10100000
+#endif
+
+/*
+    The calculated I2C address based on the input memory location.
+
+    For EEPROM chips that embed part of the memory location in the I2C address
+    such as AT24M02 you can use something similar to the following (ensuring the
+    result is shifted by left by 1):
+
+    #define EXTERNAL_EEPROM_I2C_ADDRESS(loc) \
+        (EXTERNAL_EEPROM_I2C_BASE_ADDRESS | ((((loc) >> 16) & 0x07) << 1))
+
+*/
+#ifndef EXTERNAL_EEPROM_I2C_ADDRESS
+#    define EXTERNAL_EEPROM_I2C_ADDRESS(loc) (EXTERNAL_EEPROM_I2C_BASE_ADDRESS)
+#endif
+
+/*
+    The total size of the EEPROM, in bytes. The EEPROM datasheet will usually
+    specify this value in kbits, and will require conversion to bytes.
+*/
+#ifndef EXTERNAL_EEPROM_BYTE_COUNT
+#    define EXTERNAL_EEPROM_BYTE_COUNT 8192
+#endif
+
+/*
+    The page size in bytes of the EEPROM, as specified in the datasheet.
+*/
+#ifndef EXTERNAL_EEPROM_PAGE_SIZE
+#    define EXTERNAL_EEPROM_PAGE_SIZE 32
+#endif
+
+/*
+    The address size in bytes of the EEPROM. For EEPROMs with <=256 bytes, this
+    will likely be 1. For EEPROMs >256 and <=65536, this will be 2. For EEPROMs
+    >65536, this will likely need to be 2 with the modified variant of
+    EXTERNAL_EEPROM_I2C_ADDRESS above.
+
+    As expected, consult the datasheet for specifics of your EEPROM.
+*/
+#ifndef EXTERNAL_EEPROM_ADDRESS_SIZE
+#    define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+#endif
+
+/*
+    The write cycle time of the EEPROM in milliseconds, as specified in the
+    datasheet.
+*/
+#ifndef EXTERNAL_EEPROM_WRITE_TIME
+#    define EXTERNAL_EEPROM_WRITE_TIME 5
+#endif

drivers/eeprom/eeprom_spi.c

@@ -0,0 +1,232 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+/*
+    Note that the implementations of eeprom_XXXX_YYYY on AVR are normally
+    provided by avr-libc. The same functions are reimplemented below and are
+    rerouted to the external SPI equivalent.
+
+    Seemingly, as this is compiled from within QMK, the object file generated
+    during the build overrides the avr-libc implementation during the linking
+    stage.
+
+    On other platforms such as ARM, there are no provided implementations, so
+    there is nothing to override during linkage.
+*/
+
+#include "wait.h"
+#include "spi_master.h"
+#include "eeprom.h"
+#include "eeprom_spi.h"
+
+#define CMD_WREN 6
+#define CMD_WRDI 4
+#define CMD_RDSR 5
+#define CMD_WRSR 1
+#define CMD_READ 3
+#define CMD_WRITE 2
+
+#define SR_WIP 0x01
+
+// #define DEBUG_EEPROM_OUTPUT
+
+#ifndef EXTERNAL_EEPROM_SPI_TIMEOUT
+#    define EXTERNAL_EEPROM_SPI_TIMEOUT 100
+#endif
+
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+#    include "timer.h"
+#    include "debug.h"
+#endif  // CONSOLE_ENABLE
+
+static void init_spi_if_required(void) {
+    static int done = 0;
+    if (!done) {
+        spi_init();
+        done = 1;
+    }
+}
+
+static bool spi_eeprom_start(void) { return spi_start(EXTERNAL_EEPROM_SPI_SLAVE_SELECT_PIN, EXTERNAL_EEPROM_SPI_LSBFIRST, EXTERNAL_EEPROM_SPI_MODE, EXTERNAL_EEPROM_SPI_CLOCK_DIVISOR); }
+
+static spi_status_t spi_eeprom_wait_while_busy(int timeout) {
+    uint32_t     deadline = timer_read32() + timeout;
+    spi_status_t response;
+    do {
+        spi_write(CMD_RDSR);
+        response = spi_read();
+        if (timer_read32() >= deadline) {
+            return SPI_STATUS_TIMEOUT;
+        }
+    } while (response & SR_WIP);
+    return SPI_STATUS_SUCCESS;
+}
+
+static void spi_eeprom_transmit_address(uintptr_t addr) {
+    uint8_t buffer[EXTERNAL_EEPROM_ADDRESS_SIZE];
+
+    for (int i = 0; i < EXTERNAL_EEPROM_ADDRESS_SIZE; ++i) {
+        buffer[EXTERNAL_EEPROM_ADDRESS_SIZE - 1 - i] = addr & 0xFF;
+        addr >>= 8;
+    }
+
+    spi_transmit(buffer, EXTERNAL_EEPROM_ADDRESS_SIZE);
+}
+
+//----------------------------------------------------------------------------------------------------------------------
+
+void eeprom_driver_init(void) {}
+
+void eeprom_driver_erase(void) {
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+    uint32_t start = timer_read32();
+#endif
+
+    uint8_t buf[EXTERNAL_EEPROM_PAGE_SIZE];
+    memset(buf, 0x00, EXTERNAL_EEPROM_PAGE_SIZE);
+    for (uint32_t addr = 0; addr < EXTERNAL_EEPROM_BYTE_COUNT; addr += EXTERNAL_EEPROM_PAGE_SIZE) {
+        eeprom_write_block(buf, (void *)(uintptr_t)addr, EXTERNAL_EEPROM_PAGE_SIZE);
+    }
+
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+    dprintf("EEPROM erase took %ldms to complete\n", ((long)(timer_read32() - start)));
+#endif
+}
+
+void eeprom_read_block(void *buf, const void *addr, size_t len) {
+    init_spi_if_required();
+
+    //-------------------------------------------------
+    // Wait for the write-in-progress bit to be cleared
+    bool res = spi_eeprom_start();
+    if (!res) {
+        dprint("failed to start SPI for WIP check\n");
+        memset(buf, 0, len);
+        return;
+    }
+
+    spi_status_t response = spi_eeprom_wait_while_busy(EXTERNAL_EEPROM_SPI_TIMEOUT);
+    spi_stop();
+    if (response == SPI_STATUS_TIMEOUT) {
+        dprint("SPI timeout for WIP check\n");
+        memset(buf, 0, len);
+        return;
+    }
+
+    //-------------------------------------------------
+    // Perform read
+    res = spi_eeprom_start();
+    if (!res) {
+        dprint("failed to start SPI for read\n");
+        memset(buf, 0, len);
+        return;
+    }
+
+    spi_write(CMD_READ);
+    spi_eeprom_transmit_address((uintptr_t)addr);
+    spi_receive(buf, len);
+
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+    dprintf("[EEPROM R] 0x%08lX: ", ((uint32_t)(uintptr_t)addr));
+    for (size_t i = 0; i < len; ++i) {
+        dprintf(" %02X", (int)(((uint8_t *)buf)[i]));
+    }
+    dprintf("\n");
+#endif  // DEBUG_EEPROM_OUTPUT
+
+    spi_stop();
+}
+
+void eeprom_write_block(const void *buf, void *addr, size_t len) {
+    init_spi_if_required();
+
+    bool      res;
+    uint8_t * read_buf    = (uint8_t *)buf;
+    uintptr_t target_addr = (uintptr_t)addr;
+
+    while (len > 0) {
+        uintptr_t page_offset  = target_addr % EXTERNAL_EEPROM_PAGE_SIZE;
+        int       write_length = EXTERNAL_EEPROM_PAGE_SIZE - page_offset;
+        if (write_length > len) {
+            write_length = len;
+        }
+
+        //-------------------------------------------------
+        // Wait for the write-in-progress bit to be cleared
+        res = spi_eeprom_start();
+        if (!res) {
+            dprint("failed to start SPI for WIP check\n");
+            return;
+        }
+
+        spi_status_t response = spi_eeprom_wait_while_busy(EXTERNAL_EEPROM_SPI_TIMEOUT);
+        spi_stop();
+        if (response == SPI_STATUS_TIMEOUT) {
+            dprint("SPI timeout for WIP check\n");
+            return;
+        }
+
+        //-------------------------------------------------
+        // Enable writes
+        res = spi_eeprom_start();
+        if (!res) {
+            dprint("failed to start SPI for write-enable\n");
+            return;
+        }
+
+        spi_write(CMD_WREN);
+        spi_stop();
+
+        //-------------------------------------------------
+        // Perform the write
+        res = spi_eeprom_start();
+        if (!res) {
+            dprint("failed to start SPI for write\n");
+            return;
+        }
+
+#if defined(CONSOLE_ENABLE) && defined(DEBUG_EEPROM_OUTPUT)
+        dprintf("[EEPROM W] 0x%08lX: ", ((uint32_t)(uintptr_t)target_addr));
+        for (size_t i = 0; i < write_length; i++) {
+            dprintf(" %02X", (int)(uint8_t)(read_buf[i]));
+        }
+        dprintf("\n");
+#endif  // DEBUG_EEPROM_OUTPUT
+
+        spi_write(CMD_WRITE);
+        spi_eeprom_transmit_address(target_addr);
+        spi_transmit(read_buf, write_length);
+        spi_stop();
+
+        read_buf += write_length;
+        target_addr += write_length;
+        len -= write_length;
+    }
+
+    //-------------------------------------------------
+    // Disable writes
+    res = spi_eeprom_start();
+    if (!res) {
+        dprint("failed to start SPI for write-disable\n");
+        return;
+    }
+
+    spi_write(CMD_WRDI);
+    spi_stop();
+}

drivers/eeprom/eeprom_spi.h

@@ -0,0 +1,80 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/*
+    The slave select pin of the EEPROM.
+    This needs to be a normal GPIO pin_t value, such as A7.
+*/
+#ifndef EXTERNAL_EEPROM_SPI_SLAVE_SELECT_PIN
+#    error "No chip select pin defined -- missing EXTERNAL_EEPROM_SPI_SLAVE_SELECT_PIN"
+#endif
+
+/*
+    The clock divisor for SPI to ensure that the MCU is within the
+    specifications of the EEPROM chip. Generally this will be PCLK divided by
+    the intended divisor -- check your clock settings and the datasheet of
+    your EEPROM.
+*/
+#ifndef EXTERNAL_EEPROM_SPI_CLOCK_DIVISOR
+#    ifdef __AVR__
+#        define EXTERNAL_EEPROM_SPI_CLOCK_DIVISOR 8
+#    else
+#        define EXTERNAL_EEPROM_SPI_CLOCK_DIVISOR 64
+#    endif
+#endif
+
+/*
+    The SPI mode to communicate with the EEPROM.
+*/
+#ifndef EXTERNAL_EEPROM_SPI_MODE
+#    define EXTERNAL_EEPROM_SPI_MODE 0
+#endif
+
+/*
+    Whether or not the SPI communication between the MCU and EEPROM should be
+    LSB-first.
+*/
+#ifndef EXTERNAL_EEPROM_SPI_LSBFIRST
+#    define EXTERNAL_EEPROM_SPI_LSBFIRST false
+#endif
+
+/*
+    The total size of the EEPROM, in bytes. The EEPROM datasheet will usually
+    specify this value in kbits, and will require conversion to bytes.
+*/
+#ifndef EXTERNAL_EEPROM_BYTE_COUNT
+#    define EXTERNAL_EEPROM_BYTE_COUNT 8192
+#endif
+
+/*
+    The page size in bytes of the EEPROM, as specified in the datasheet.
+*/
+#ifndef EXTERNAL_EEPROM_PAGE_SIZE
+#    define EXTERNAL_EEPROM_PAGE_SIZE 32
+#endif
+
+/*
+    The address size in bytes of the EEPROM. For EEPROMs with <=256 bytes, this
+    will likely be 1. For EEPROMs >256 and <=65536, this will be 2. For EEPROMs
+    >65536, this will likely need to be 4.
+
+    As expected, consult the datasheet for specifics of your EEPROM.
+*/
+#ifndef EXTERNAL_EEPROM_ADDRESS_SIZE
+#    define EXTERNAL_EEPROM_ADDRESS_SIZE 2
+#endif

drivers/eeprom/eeprom_stm32_L0_L1.c

@@ -0,0 +1,96 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "hal.h"
+#include "eeprom_driver.h"
+#include "eeprom_stm32_L0_L1.h"
+
+#define EEPROM_BASE_ADDR 0x08080000
+#define EEPROM_ADDR(offset) (EEPROM_BASE_ADDR + (offset))
+#define EEPROM_PTR(offset) ((__IO uint8_t *)EEPROM_ADDR(offset))
+#define EEPROM_BYTE(location, offset) (*(EEPROM_PTR(((uint32_t)location) + ((uint32_t)offset))))
+
+#define BUFFER_BYTE(buffer, offset) (*(((uint8_t *)buffer) + offset))
+
+#define FLASH_PEKEY1 0x89ABCDEF
+#define FLASH_PEKEY2 0x02030405
+
+static inline void STM32_L0_L1_EEPROM_WaitNotBusy(void) {
+    while (FLASH->SR & FLASH_SR_BSY) {
+        __WFI();
+    }
+}
+
+static inline void STM32_L0_L1_EEPROM_Unlock(void) {
+    STM32_L0_L1_EEPROM_WaitNotBusy();
+    if (FLASH->PECR & FLASH_PECR_PELOCK) {
+        FLASH->PEKEYR = FLASH_PEKEY1;
+        FLASH->PEKEYR = FLASH_PEKEY2;
+    }
+}
+
+static inline void STM32_L0_L1_EEPROM_Lock(void) {
+    STM32_L0_L1_EEPROM_WaitNotBusy();
+    FLASH->PECR |= FLASH_PECR_PELOCK;
+}
+
+void eeprom_driver_init(void) {}
+
+void eeprom_driver_erase(void) {
+    STM32_L0_L1_EEPROM_Unlock();
+
+    for (size_t offset = 0; offset < STM32_ONBOARD_EEPROM_SIZE; offset += sizeof(uint32_t)) {
+        FLASH->PECR |= FLASH_PECR_ERASE | FLASH_PECR_DATA;
+
+        *(__IO uint32_t *)EEPROM_ADDR(offset) = (uint32_t)0;
+
+        STM32_L0_L1_EEPROM_WaitNotBusy();
+        FLASH->PECR &= ~(FLASH_PECR_ERASE | FLASH_PECR_DATA);
+    }
+
+    STM32_L0_L1_EEPROM_Lock();
+}
+
+void eeprom_read_block(void *buf, const void *addr, size_t len) {
+    for (size_t offset = 0; offset < len; ++offset) {
+        // Drop out if we've hit the limit of the EEPROM
+        if ((((uint32_t)addr) + offset) >= STM32_ONBOARD_EEPROM_SIZE) {
+            break;
+        }
+
+        STM32_L0_L1_EEPROM_WaitNotBusy();
+        BUFFER_BYTE(buf, offset) = EEPROM_BYTE(addr, offset);
+    }
+}
+
+void eeprom_write_block(const void *buf, void *addr, size_t len) {
+    STM32_L0_L1_EEPROM_Unlock();
+
+    for (size_t offset = 0; offset < len; ++offset) {
+        // Drop out if we've hit the limit of the EEPROM
+        if ((((uint32_t)addr) + offset) >= STM32_ONBOARD_EEPROM_SIZE) {
+            break;
+        }
+
+        STM32_L0_L1_EEPROM_WaitNotBusy();
+        EEPROM_BYTE(addr, offset) = BUFFER_BYTE(buf, offset);
+    }
+
+    STM32_L0_L1_EEPROM_Lock();
+}

drivers/eeprom/eeprom_stm32_L0_L1.h

@@ -0,0 +1,33 @@
+/* Copyright 2020 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/*
+    The size used by the STM32 L0/L1 EEPROM driver.
+*/
+#ifndef STM32_ONBOARD_EEPROM_SIZE
+#    ifdef VIA_ENABLE
+#        define STM32_ONBOARD_EEPROM_SIZE 1024
+#    else
+#        include "eeconfig.h"
+#        define STM32_ONBOARD_EEPROM_SIZE (((EECONFIG_SIZE + 3) / 4) * 4)  // based off eeconfig's current usage, aligned to 4-byte sizes, to deal with LTO and EEPROM page sizing
+#    endif
+#endif
+
+#if STM32_ONBOARD_EEPROM_SIZE > 128
+#    pragma message("Please note: resetting EEPROM using an STM32L0/L1 device takes up to 1 second for every 1kB of internal EEPROM used.")
+#endif

drivers/eeprom/eeprom_transient.c

@@ -0,0 +1,52 @@
+/* Copyright 2019 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "eeprom_driver.h"
+#include "eeprom_transient.h"
+
+__attribute__((aligned(4))) static uint8_t transientBuffer[TRANSIENT_EEPROM_SIZE] = {0};
+
+size_t clamp_length(intptr_t offset, size_t len) {
+    if (offset + len > TRANSIENT_EEPROM_SIZE) {
+        len = TRANSIENT_EEPROM_SIZE - offset;
+    }
+
+    return len;
+}
+
+void eeprom_driver_init(void) { eeprom_driver_erase(); }
+
+void eeprom_driver_erase(void) { memset(transientBuffer, 0x00, TRANSIENT_EEPROM_SIZE); }
+
+void eeprom_read_block(void *buf, const void *addr, size_t len) {
+    intptr_t offset = (intptr_t)addr;
+    memset(buf, 0x00, len);
+    len = clamp_length(offset, len);
+    if (len > 0) {
+        memcpy(buf, &transientBuffer[offset], len);
+    }
+}
+
+void eeprom_write_block(const void *buf, void *addr, size_t len) {
+    intptr_t offset = (intptr_t)addr;
+    len             = clamp_length(offset, len);
+    if (len > 0) {
+        memcpy(&transientBuffer[offset], buf, len);
+    }
+}

drivers/eeprom/eeprom_transient.h

@@ -0,0 +1,25 @@
+/* Copyright 2019 Nick Brassel (tzarc)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/*
+    The size of the transient EEPROM buffer size.
+*/
+#ifndef TRANSIENT_EEPROM_SIZE
+#    include "eeconfig.h"
+#    define TRANSIENT_EEPROM_SIZE (((EECONFIG_SIZE + 3) / 4) * 4)  // based off eeconfig's current usage, aligned to 4-byte sizes, to deal with LTO
+#endif

drivers/haptic/solenoid.h

@@ -29,12 +29,8 @@
 #    define SOLENOID_MIN_DWELL 4
 #endif
 
-#ifndef SOLENOID_ACTIVE
-#    define SOLENOID_ACTIVE false
-#endif
-
 #ifndef SOLENOID_PIN
-#    define SOLENOID_PIN F6
+#    error SOLENOID_PIN not defined
 #endif
 
 void solenoid_buzz_on(void);

drivers/issi/is31fl3218.h

@@ -13,6 +13,7 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 #pragma once
 
 #include <stdint.h>

drivers/issi/is31fl3731-simple.c

@@ -16,21 +16,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifdef __AVR__
-#    include <avr/interrupt.h>
-#    include <avr/io.h>
-#    include <util/delay.h>
-#else
-#    include "wait.h"
-#endif
-
-#include <stdint.h>
-#include <stdbool.h>
-#include <string.h>
 #include "is31fl3731-simple.h"
 #include "i2c_master.h"
-#include "progmem.h"
-#include "print.h"
+#include "wait.h"
 
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
@@ -156,6 +144,7 @@ void IS31FL3731_init(uint8_t addr) {
 
     // enable software shutdown
     IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00);
+
     // this delay was copied from other drivers, might not be needed
     wait_ms(10);
 

drivers/issi/is31fl3731-simple.h

@@ -16,8 +16,10 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef IS31FL3731_DRIVER_H
-#define IS31FL3731_DRIVER_H
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
 
 typedef struct is31_led {
     uint8_t driver : 2;
@@ -203,5 +205,3 @@ void IS31FL3731_update_led_control_registers(uint8_t addr, uint8_t index);
 #define C9_14 0xB1
 #define C9_15 0xB2
 #define C9_16 0xB3
-
-#endif  // IS31FL3731_DRIVER_H

drivers/issi/is31fl3731.c

@@ -15,18 +15,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifdef __AVR__
-#    include <avr/interrupt.h>
-#    include <avr/io.h>
-#    include <util/delay.h>
-#else
-#    include "wait.h"
-#endif
-
 #include "is31fl3731.h"
-#include <string.h>
 #include "i2c_master.h"
-#include "progmem.h"
+#include "wait.h"
 
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
@@ -73,7 +64,7 @@ uint8_t g_twi_transfer_buffer[20];
 uint8_t g_pwm_buffer[DRIVER_COUNT][144];
 bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
 
-uint8_t g_led_control_registers[DRIVER_COUNT][18]             = {{0}, {0}};
+uint8_t g_led_control_registers[DRIVER_COUNT][18]             = {{0}};
 bool    g_led_control_registers_update_required[DRIVER_COUNT] = {false};
 
 // This is the bit pattern in the LED control registers
@@ -141,12 +132,9 @@ void IS31FL3731_init(uint8_t addr) {
 
     // enable software shutdown
     IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00);
-// this delay was copied from other drivers, might not be needed
-#ifdef __AVR__
-    _delay_ms(10);
-#else
+
+    // this delay was copied from other drivers, might not be needed
     wait_ms(10);
-#endif
 
     // picture mode
     IS31FL3731_write_register(addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE);

drivers/issi/is31fl3731.h

@@ -15,8 +15,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef IS31FL3731_DRIVER_H
-#define IS31FL3731_DRIVER_H
+#pragma once
 
 #include <stdint.h>
 #include <stdbool.h>
@@ -207,5 +206,3 @@ void IS31FL3731_update_led_control_registers(uint8_t addr, uint8_t index);
 #define C9_14 0xB1
 #define C9_15 0xB2
 #define C9_16 0xB3
-
-#endif  // IS31FL3731_DRIVER_H

drivers/issi/is31fl3733.c

@@ -16,18 +16,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifdef __AVR__
-#    include <avr/interrupt.h>
-#    include <avr/io.h>
-#    include <util/delay.h>
-#else
-#    include "wait.h"
-#endif
-
 #include "is31fl3733.h"
-#include <string.h>
 #include "i2c_master.h"
-#include "progmem.h"
+#include "wait.h"
 
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
@@ -80,43 +71,54 @@ bool    g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
 uint8_t g_led_control_registers[DRIVER_COUNT][24]             = {{0}, {0}};
 bool    g_led_control_registers_update_required[DRIVER_COUNT] = {false};
 
-void IS31FL3733_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
+bool IS31FL3733_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
+    // If the transaction fails function returns false.
     g_twi_transfer_buffer[0] = reg;
     g_twi_transfer_buffer[1] = data;
 
 #if ISSI_PERSISTENCE > 0
     for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) == 0) break;
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) != 0) {
+            return false;
+        }
     }
 #else
-    i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT);
+    if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) != 0) {
+        return false;
+    }
 #endif
+    return true;
 }
 
-void IS31FL3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
-    // assumes PG1 is already selected
-
-    // transmit PWM registers in 12 transfers of 16 bytes
+bool IS31FL3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+    // Assumes PG1 is already selected.
+    // If any of the transactions fails function returns false.
+    // Transmit PWM registers in 12 transfers of 16 bytes.
     // g_twi_transfer_buffer[] is 20 bytes
 
-    // iterate over the pwm_buffer contents at 16 byte intervals
+    // Iterate over the pwm_buffer contents at 16 byte intervals.
     for (int i = 0; i < 192; i += 16) {
         g_twi_transfer_buffer[0] = i;
-        // copy the data from i to i+15
-        // device will auto-increment register for data after the first byte
-        // thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer
+        // Copy the data from i to i+15.
+        // Device will auto-increment register for data after the first byte
+        // Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
         for (int j = 0; j < 16; j++) {
             g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j];
         }
 
 #if ISSI_PERSISTENCE > 0
         for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
-            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) == 0) break;
+            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) != 0) {
+                return false;
+            }
         }
 #else
-        i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT);
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) != 0) {
+            return false;
+        }
 #endif
     }
+    return true;
 }
 
 void IS31FL3733_init(uint8_t addr, uint8_t sync) {
@@ -157,12 +159,8 @@ void IS31FL3733_init(uint8_t addr, uint8_t sync) {
     // Disable software shutdown.
     IS31FL3733_write_register(addr, ISSI_REG_CONFIGURATION, (sync << 6) | 0x01);
 
-// Wait 10ms to ensure the device has woken up.
-#ifdef __AVR__
-    _delay_ms(10);
-#else
+    // Wait 10ms to ensure the device has woken up.
     wait_ms(10);
-#endif
 }
 
 void IS31FL3733_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
@@ -213,11 +211,15 @@ void IS31FL3733_set_led_control_register(uint8_t index, bool red, bool green, bo
 
 void IS31FL3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
     if (g_pwm_buffer_update_required[index]) {
-        // Firstly we need to unlock the command register and select PG1
+        // Firstly we need to unlock the command register and select PG1.
         IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
         IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
 
-        IS31FL3733_write_pwm_buffer(addr, g_pwm_buffer[index]);
+        // If any of the transactions fail we risk writing dirty PG0,
+        // refresh page 0 just in case.
+        if (!IS31FL3733_write_pwm_buffer(addr, g_pwm_buffer[index])) {
+            g_led_control_registers_update_required[index] = true;
+        }
     }
     g_pwm_buffer_update_required[index] = false;
 }

drivers/issi/is31fl3733.h

@@ -16,8 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef IS31FL3733_DRIVER_H
-#define IS31FL3733_DRIVER_H
+#pragma once
 
 #include <stdint.h>
 #include <stdbool.h>
@@ -32,8 +31,8 @@ typedef struct is31_led {
 extern const is31_led g_is31_leds[DRIVER_LED_TOTAL];
 
 void IS31FL3733_init(uint8_t addr, uint8_t sync);
-void IS31FL3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
-void IS31FL3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
+bool IS31FL3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+bool IS31FL3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
 
 void IS31FL3733_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
 void IS31FL3733_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
@@ -250,5 +249,3 @@ void IS31FL3733_update_led_control_registers(uint8_t addr, uint8_t index);
 #define L_14 0xBD
 #define L_15 0xBE
 #define L_16 0xBF
-
-#endif  // IS31FL3733_DRIVER_H

drivers/issi/is31fl3736.c

@@ -14,18 +14,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifdef __AVR__
-#    include <avr/interrupt.h>
-#    include <avr/io.h>
-#    include <util/delay.h>
-#else
-#    include "wait.h"
-#endif
-
 #include "is31fl3736.h"
-#include <string.h>
 #include "i2c_master.h"
-#include "progmem.h"
+#include "wait.h"
 
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
@@ -154,12 +145,8 @@ void IS31FL3736_init(uint8_t addr) {
     // Disable software shutdown.
     IS31FL3736_write_register(addr, ISSI_REG_CONFIGURATION, 0x01);
 
-// Wait 10ms to ensure the device has woken up.
-#ifdef __AVR__
-    _delay_ms(10);
-#else
+    // Wait 10ms to ensure the device has woken up.
     wait_ms(10);
-#endif
 }
 
 void IS31FL3736_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
@@ -263,7 +250,7 @@ void IS31FL3736_update_pwm_buffers(uint8_t addr1, uint8_t addr2) {
         IS31FL3736_write_register(addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
 
         IS31FL3736_write_pwm_buffer(addr1, g_pwm_buffer[0]);
-        // IS31FL3736_write_pwm_buffer( addr2, g_pwm_buffer[1] );
+        // IS31FL3736_write_pwm_buffer(addr2, g_pwm_buffer[1]);
     }
     g_pwm_buffer_update_required = false;
 }
@@ -275,7 +262,7 @@ void IS31FL3736_update_led_control_registers(uint8_t addr1, uint8_t addr2) {
         IS31FL3736_write_register(addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
         for (int i = 0; i < 24; i++) {
             IS31FL3736_write_register(addr1, i, g_led_control_registers[0][i]);
-            // IS31FL3736_write_register(addr2, i, g_led_control_registers[1][i] );
+            // IS31FL3736_write_register(addr2, i, g_led_control_registers[1][i]);
         }
     }
 }

drivers/issi/is31fl3737.c

@@ -16,18 +16,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifdef __AVR__
-#    include <avr/interrupt.h>
-#    include <avr/io.h>
-#    include <util/delay.h>
-#else
-#    include "wait.h"
-#endif
-
-#include <string.h>
+#include "is31fl3737.h"
 #include "i2c_master.h"
-#include "progmem.h"
-#include "rgb_matrix.h"
+#include "wait.h"
 
 // This is a 7-bit address, that gets left-shifted and bit 0
 // set to 0 for write, 1 for read (as per I2C protocol)
@@ -156,12 +147,8 @@ void IS31FL3737_init(uint8_t addr) {
     // Disable software shutdown.
     IS31FL3737_write_register(addr, ISSI_REG_CONFIGURATION, 0x01);
 
-// Wait 10ms to ensure the device has woken up.
-#ifdef __AVR__
-    _delay_ms(10);
-#else
+    // Wait 10ms to ensure the device has woken up.
     wait_ms(10);
-#endif
 }
 
 void IS31FL3737_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
@@ -217,7 +204,7 @@ void IS31FL3737_update_pwm_buffers(uint8_t addr1, uint8_t addr2) {
         IS31FL3737_write_register(addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
 
         IS31FL3737_write_pwm_buffer(addr1, g_pwm_buffer[0]);
-        // IS31FL3737_write_pwm_buffer( addr2, g_pwm_buffer[1] );
+        // IS31FL3737_write_pwm_buffer(addr2, g_pwm_buffer[1]);
     }
     g_pwm_buffer_update_required = false;
 }
@@ -229,7 +216,7 @@ void IS31FL3737_update_led_control_registers(uint8_t addr1, uint8_t addr2) {
         IS31FL3737_write_register(addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
         for (int i = 0; i < 24; i++) {
             IS31FL3737_write_register(addr1, i, g_led_control_registers[0][i]);
-            // IS31FL3737_write_register(addr2, i, g_led_control_registers[1][i] );
+            // IS31FL3737_write_register(addr2, i, g_led_control_registers[1][i]);
         }
     }
 }

drivers/issi/is31fl3737.h

@@ -16,8 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef IS31FL3737_DRIVER_H
-#define IS31FL3737_DRIVER_H
+#pragma once
 
 #include <stdint.h>
 #include <stdbool.h>
@@ -202,5 +201,3 @@ void IS31FL3737_update_led_control_registers(uint8_t addr1, uint8_t addr2);
 #define L_10 0xBB
 #define L_11 0xBC
 #define L_12 0xBD
-
-#endif  // IS31FL3737_DRIVER_H

drivers/issi/is31fl3741.c

@@ -0,0 +1,290 @@
+/* Copyright 2017 Jason Williams
+ * Copyright 2018 Jack Humbert
+ * Copyright 2018 Yiancar
+ * Copyright 2020 MelGeek
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "wait.h"
+
+#include "is31fl3741.h"
+#include <string.h>
+#include "i2c_master.h"
+#include "progmem.h"
+
+// This is a 7-bit address, that gets left-shifted and bit 0
+// set to 0 for write, 1 for read (as per I2C protocol)
+// The address will vary depending on your wiring:
+// 00 <-> GND
+// 01 <-> SCL
+// 10 <-> SDA
+// 11 <-> VCC
+// ADDR1 represents A1:A0 of the 7-bit address.
+// ADDR2 represents A3:A2 of the 7-bit address.
+// The result is: 0b101(ADDR2)(ADDR1)
+#define ISSI_ADDR_DEFAULT 0x60
+
+#define ISSI_COMMANDREGISTER 0xFD
+#define ISSI_COMMANDREGISTER_WRITELOCK 0xFE
+#define ISSI_INTERRUPTMASKREGISTER 0xF0
+#define ISSI_INTERRUPTSTATUSREGISTER 0xF1
+#define ISSI_IDREGISTER 0xFC
+
+#define ISSI_PAGE_PWM0 0x00       // PG0
+#define ISSI_PAGE_PWM1 0x01       // PG1
+#define ISSI_PAGE_SCALING_0 0x02  // PG2
+#define ISSI_PAGE_SCALING_1 0x03  // PG3
+#define ISSI_PAGE_FUNCTION 0x04   // PG4
+
+#define ISSI_REG_CONFIGURATION 0x00  // PG4
+#define ISSI_REG_GLOBALCURRENT 0x01  // PG4
+#define ISSI_REG_PULLDOWNUP 0x02     // PG4
+#define ISSI_REG_RESET 0x3F          // PG4
+
+#ifndef ISSI_TIMEOUT
+#    define ISSI_TIMEOUT 100
+#endif
+
+#ifndef ISSI_PERSISTENCE
+#    define ISSI_PERSISTENCE 0
+#endif
+
+#define ISSI_MAX_LEDS 351
+
+// Transfer buffer for TWITransmitData()
+uint8_t g_twi_transfer_buffer[20] = {0xFF};
+
+// These buffers match the IS31FL3741 and IS31FL3741A PWM registers.
+// The scaling buffers match the PG2 and PG3 LED On/Off registers.
+// Storing them like this is optimal for I2C transfers to the registers.
+// We could optimize this and take out the unused registers from these
+// buffers and the transfers in IS31FL3741_write_pwm_buffer() but it's
+// probably not worth the extra complexity.
+uint8_t g_pwm_buffer[DRIVER_COUNT][ISSI_MAX_LEDS];
+bool    g_pwm_buffer_update_required                      = false;
+bool    g_scaling_registers_update_required[DRIVER_COUNT] = {false};
+
+uint8_t g_scaling_registers[DRIVER_COUNT][ISSI_MAX_LEDS];
+
+uint32_t IS31FL3741_get_cw_sw_position(uint8_t cs, uint8_t sw) {
+    uint32_t pos = 0;
+
+    if (cs < 31) {
+        if (sw < 7) {
+            pos = (sw - 1) * 30 + (cs - 1);
+
+        } else {
+            pos = 0xB4 + (sw - 7) * 30 + (cs - 1);
+        }
+    } else {
+        pos = 0xB4 + 0x5A + (sw - 1) * 9 + (cs - 31);
+    }
+
+    return pos;
+}
+
+void IS31FL3741_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
+    g_twi_transfer_buffer[0] = reg;
+    g_twi_transfer_buffer[1] = data;
+
+#if ISSI_PERSISTENCE > 0
+    for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) == 0) break;
+    }
+#else
+    i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT);
+#endif
+}
+
+bool IS31FL3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+    // unlock the command register and select PG2
+    IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+    IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM0);
+
+    for (int i = 0; i < 342; i += 18) {
+        g_twi_transfer_buffer[0] = i % 180;
+
+        if (i == 180) {
+            // unlock the command register and select PG2
+            IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+            IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM1);
+        }
+
+        memcpy(g_twi_transfer_buffer + 1, pwm_buffer + i, 18);
+
+#if ISSI_PERSISTENCE > 0
+        for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
+            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 19, ISSI_TIMEOUT) != 0) {
+                return false;
+            }
+        }
+#else
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 19, ISSI_TIMEOUT) != 0) {
+            return false;
+        }
+#endif
+    }
+
+    // transfer the left cause the total number is 351
+    g_twi_transfer_buffer[0] = 162;
+    memcpy(g_twi_transfer_buffer + 1, pwm_buffer + 342, 9);
+
+#if ISSI_PERSISTENCE > 0
+    for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 10, ISSI_TIMEOUT) != 0) {
+            return false;
+        }
+    }
+#else
+    if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 10, ISSI_TIMEOUT) != 0) {
+        return false;
+    }
+#endif
+
+    return true;
+}
+
+void IS31FL3741_init(uint8_t addr) {
+    // In order to avoid the LEDs being driven with garbage data
+    // in the LED driver's PWM registers, shutdown is enabled last.
+    // Set up the mode and other settings, clear the PWM registers,
+    // then disable software shutdown.
+    // Unlock the command register.
+
+    // Unlock the command register.
+    IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+
+    // Select PG4
+    IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_FUNCTION);
+
+    // Set to Normal operation
+    IS31FL3741_write_register(addr, ISSI_REG_CONFIGURATION, 0x01);
+
+    // Set Golbal Current Control Register
+    IS31FL3741_write_register(addr, ISSI_REG_GLOBALCURRENT, 0xFF);
+    // Set Pull up & Down for SWx CSy
+    IS31FL3741_write_register(addr, ISSI_REG_PULLDOWNUP, 0x77);
+
+    // IS31FL3741_update_led_scaling_registers(addr, 0xFF, 0xFF, 0xFF);
+
+    // Wait 10ms to ensure the device has woken up.
+    wait_ms(10);
+}
+
+void IS31FL3741_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
+    if (index >= 0 && index < DRIVER_LED_TOTAL) {
+        is31_led led = g_is31_leds[index];
+        uint32_t rp = 0, gp = 0, bp = 0;
+
+        rp = IS31FL3741_get_cw_sw_position(led.rcs, led.rsw);
+        gp = IS31FL3741_get_cw_sw_position(led.gcs, led.gsw);
+        bp = IS31FL3741_get_cw_sw_position(led.bcs, led.bsw);
+
+        g_pwm_buffer[led.driver][rp] = red;
+        g_pwm_buffer[led.driver][gp] = green;
+        g_pwm_buffer[led.driver][bp] = blue;
+        g_pwm_buffer_update_required = true;
+    }
+}
+
+void IS31FL3741_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
+    for (int i = 0; i < DRIVER_LED_TOTAL; i++) {
+        IS31FL3741_set_color(i, red, green, blue);
+    }
+}
+
+void IS31FL3741_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
+    is31_led led = g_is31_leds[index];
+
+    uint32_t scaling_register_r = IS31FL3741_get_cw_sw_position(led.rcs, led.rsw);
+    uint32_t scaling_register_g = IS31FL3741_get_cw_sw_position(led.gcs, led.gsw);
+    uint32_t scaling_register_b = IS31FL3741_get_cw_sw_position(led.bcs, led.bsw);
+
+    if (red) {
+        g_scaling_registers[led.driver][scaling_register_r] = 0xFF;
+    } else {
+        g_scaling_registers[led.driver][scaling_register_r] = 0x00;
+    }
+
+    if (green) {
+        g_scaling_registers[led.driver][scaling_register_g] = 0xFF;
+    } else {
+        g_scaling_registers[led.driver][scaling_register_g] = 0x00;
+    }
+
+    if (blue) {
+        g_scaling_registers[led.driver][scaling_register_b] = 0xFF;
+    } else {
+        g_scaling_registers[led.driver][scaling_register_b] = 0x00;
+    }
+
+    g_scaling_registers_update_required[led.driver] = true;
+}
+
+void IS31FL3741_update_pwm_buffers(uint8_t addr1, uint8_t addr2) {
+    if (g_pwm_buffer_update_required) {
+        IS31FL3741_write_pwm_buffer(addr1, g_pwm_buffer[0]);
+    }
+
+    g_pwm_buffer_update_required = false;
+}
+
+void IS31FL3741_set_pwm_buffer(const is31_led *pled, uint8_t red, uint8_t green, uint8_t blue) {
+    uint32_t rp = 0, gp = 0, bp = 0;
+
+    rp = IS31FL3741_get_cw_sw_position(pled->rcs, pled->rsw);
+    gp = IS31FL3741_get_cw_sw_position(pled->gcs, pled->gsw);
+    bp = IS31FL3741_get_cw_sw_position(pled->bcs, pled->bsw);
+
+    g_pwm_buffer[pled->driver][rp] = red;
+    g_pwm_buffer[pled->driver][gp] = green;
+    g_pwm_buffer[pled->driver][bp] = blue;
+
+    g_pwm_buffer_update_required = true;
+}
+
+void IS31FL3741_update_led_control_registers(uint8_t addr, uint8_t index) {
+    if (g_scaling_registers_update_required[index]) {
+        // unlock the command register and select PG2
+        IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+        IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_SCALING_0);
+
+        for (int i = 0; i < 180; ++i) {
+            IS31FL3741_write_register(addr, i, g_scaling_registers[0][i]);
+        }
+
+        // unlock the command register and select PG3
+        IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+        IS31FL3741_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_SCALING_1);
+
+        for (int i = 0; i < 171; ++i) {
+            IS31FL3741_write_register(addr, i, g_scaling_registers[0][180 + i]);
+        }
+
+        g_scaling_registers_update_required[index] = false;
+    }
+}
+
+void IS31FL3741_set_scaling_registers(const is31_led *pled, uint8_t red, uint8_t green, uint8_t blue) {
+    uint32_t rp = 0, gp = 0, bp = 0;
+
+    rp = IS31FL3741_get_cw_sw_position(pled->rcs, pled->rsw);
+    gp = IS31FL3741_get_cw_sw_position(pled->gcs, pled->gsw);
+    bp = IS31FL3741_get_cw_sw_position(pled->bcs, pled->bsw);
+
+    g_scaling_registers[pled->driver][rp] = red;
+    g_scaling_registers[pled->driver][gp] = green;
+    g_scaling_registers[pled->driver][bp] = blue;
+}

drivers/issi/is31fl3741.h

@@ -0,0 +1,55 @@
+/* Copyright 2017 Jason Williams
+ * Copyright 2018 Jack Humbert
+ * Copyright 2018 Yiancar
+ * Copyright 2020 MelGeek
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef struct is31_led {
+    uint8_t driver : 2;
+    uint8_t rcs;
+    uint8_t rsw;
+    uint8_t gcs;
+    uint8_t gsw;
+    uint8_t bcs;
+    uint8_t bsw;
+} __attribute__((packed)) is31_led;
+
+extern const is31_led g_is31_leds[DRIVER_LED_TOTAL];
+extern const is31_led g_is31_indicator_leds[DRIVER_INDICATOR_LED_TOTAL];
+
+void IS31FL3741_init(uint8_t addr);
+void IS31FL3741_write_register(uint8_t addr, uint8_t reg, uint8_t data);
+bool IS31FL3741_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
+
+void IS31FL3741_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
+void IS31FL3741_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
+
+void IS31FL3741_set_led_control_register(uint8_t index, bool red, bool green, bool blue);
+
+// This should not be called from an interrupt
+// (eg. from a timer interrupt).
+// Call this while idle (in between matrix scans).
+// If the buffer is dirty, it will update the driver with the buffer.
+void IS31FL3741_update_pwm_buffers(uint8_t addr1, uint8_t addr2);
+void IS31FL3741_update_led_control_registers(uint8_t addr1, uint8_t addr2);
+void IS31FL3741_set_scaling_registers(const is31_led *pled, uint8_t red, uint8_t green, uint8_t blue);
+
+void IS31FL3741_set_pwm_buffer(const is31_led *pled, uint8_t red, uint8_t green, uint8_t blue);

drivers/oled/glcdfont.c

@@ -1,13 +1,4 @@
-#pragma once
-
-#ifdef __AVR__
-#    include <avr/io.h>
-#    include <avr/pgmspace.h>
-#elif defined(ESP8266)
-#    include <pgmspace.h>
-#else
-#    define PROGMEM
-#endif
+#include "progmem.h"
 
 // Helidox 8x6 font with QMK Firmware Logo
 // Online editor: http://teripom.x0.com/

drivers/oled/oled_driver.c

@@ -22,15 +22,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #include <string.h>
 
-#if defined(__AVR__)
-#    include <avr/io.h>
-#    include <avr/pgmspace.h>
-#elif defined(ESP8266)
-#    include <pgmspace.h>
-#else  // defined(ESP8266)
-#    define PROGMEM
-#    define memcpy_P(des, src, len) memcpy(des, src, len)
-#endif  // defined(__AVR__)
+#include "progmem.h"
 
 // Used commands from spec sheet: https://cdn-shop.adafruit.com/datasheets/SSD1306.pdf
 // for SH1106: https://www.velleman.eu/downloads/29/infosheets/sh1106_datasheet.pdf
@@ -90,14 +82,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define I2C_CMD 0x00
 #define I2C_DATA 0x40
 #if defined(__AVR__)
-// already defined on ARM
-#    define I2C_TIMEOUT 100
-#    define I2C_TRANSMIT_P(data) i2c_transmit_P((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), I2C_TIMEOUT)
+#    define I2C_TRANSMIT_P(data) i2c_transmit_P((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), OLED_I2C_TIMEOUT)
 #else  // defined(__AVR__)
-#    define I2C_TRANSMIT_P(data) i2c_transmit((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), I2C_TIMEOUT)
+#    define I2C_TRANSMIT_P(data) i2c_transmit((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), OLED_I2C_TIMEOUT)
 #endif  // defined(__AVR__)
-#define I2C_TRANSMIT(data) i2c_transmit((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), I2C_TIMEOUT)
-#define I2C_WRITE_REG(mode, data, size) i2c_writeReg((OLED_DISPLAY_ADDRESS << 1), mode, data, size, I2C_TIMEOUT)
+#define I2C_TRANSMIT(data) i2c_transmit((OLED_DISPLAY_ADDRESS << 1), &data[0], sizeof(data), OLED_I2C_TIMEOUT)
+#define I2C_WRITE_REG(mode, data, size) i2c_writeReg((OLED_DISPLAY_ADDRESS << 1), mode, data, size, OLED_I2C_TIMEOUT)
 
 #define HAS_FLAGS(bits, flags) ((bits & flags) == flags)
 
@@ -113,6 +103,9 @@ bool            oled_active         = false;
 bool            oled_scrolling      = false;
 uint8_t         oled_rotation       = 0;
 uint8_t         oled_rotation_width = 0;
+uint8_t         oled_scroll_speed   = 0;  // this holds the speed after being remapped to ssd1306 internal values
+uint8_t         oled_scroll_start   = 0;
+uint8_t         oled_scroll_end     = 7;
 #if OLED_TIMEOUT > 0
 uint32_t oled_timeout;
 #endif
@@ -392,6 +385,8 @@ void oled_write_char(const char data, bool invert) {
     static uint8_t oled_temp_buffer[OLED_FONT_WIDTH];
     memcpy(&oled_temp_buffer, oled_cursor, OLED_FONT_WIDTH);
 
+    _Static_assert(sizeof(font) >= ((OLED_FONT_END + 1 - OLED_FONT_START) * OLED_FONT_WIDTH), "OLED_FONT_END references outside array");
+
     // set the reder buffer data
     uint8_t cast_data = (uint8_t)data;  // font based on unsigned type for index
     if (cast_data < OLED_FONT_START || cast_data > OLED_FONT_END) {
@@ -431,6 +426,53 @@ void oled_write_ln(const char *data, bool invert) {
     oled_advance_page(true);
 }
 
+void oled_pan(bool left) {
+    uint16_t i = 0;
+    for (uint16_t y = 0; y < OLED_DISPLAY_HEIGHT / 8; y++) {
+        if (left) {
+            for (uint16_t x = 0; x < OLED_DISPLAY_WIDTH - 1; x++) {
+                i              = y * OLED_DISPLAY_WIDTH + x;
+                oled_buffer[i] = oled_buffer[i + 1];
+            }
+        } else {
+            for (uint16_t x = OLED_DISPLAY_WIDTH - 1; x > 0; x--) {
+                i              = y * OLED_DISPLAY_WIDTH + x;
+                oled_buffer[i] = oled_buffer[i - 1];
+            }
+        }
+    }
+    oled_dirty = ~((OLED_BLOCK_TYPE)0);
+}
+
+void oled_write_raw_byte(const char data, uint16_t index) {
+    if (index > OLED_MATRIX_SIZE) index = OLED_MATRIX_SIZE;
+    if (oled_buffer[index] == data) return;
+    oled_buffer[index] = data;
+    oled_dirty |= (1 << (index / OLED_BLOCK_SIZE));
+}
+
+void oled_write_raw(const char *data, uint16_t size) {
+    if (size > OLED_MATRIX_SIZE) size = OLED_MATRIX_SIZE;
+    for (uint16_t i = 0; i < size; i++) {
+        if (oled_buffer[i] == data[i]) continue;
+        oled_buffer[i] = data[i];
+        oled_dirty |= (1 << (i / OLED_BLOCK_SIZE));
+    }
+}
+
+void oled_write_pixel(uint8_t x, uint8_t y, bool on) {
+    if (x >= OLED_DISPLAY_WIDTH || y >= OLED_DISPLAY_HEIGHT) {
+        return;
+    }
+    uint16_t index = x + (y / 8) * OLED_DISPLAY_WIDTH;
+    if (on) {
+        oled_buffer[index] |= (1 << (y % 8));
+    } else {
+        oled_buffer[index] &= ~(1 << (y % 8));
+    }
+    oled_dirty |= (1 << (index / OLED_BLOCK_SIZE));
+}
+
 #if defined(__AVR__)
 void oled_write_P(const char *data, bool invert) {
     uint8_t c = pgm_read_byte(data);
@@ -444,6 +486,16 @@ void oled_write_ln_P(const char *data, bool invert) {
     oled_write_P(data, invert);
     oled_advance_page(true);
 }
+
+void oled_write_raw_P(const char *data, uint16_t size) {
+    if (size > OLED_MATRIX_SIZE) size = OLED_MATRIX_SIZE;
+    for (uint16_t i = 0; i < size; i++) {
+        uint8_t c = pgm_read_byte(data++);
+        if (oled_buffer[i] == c) continue;
+        oled_buffer[i] = c;
+        oled_dirty |= (1 << (i / OLED_BLOCK_SIZE));
+    }
+}
 #endif  // defined(__AVR__)
 
 bool oled_on(void) {
@@ -474,12 +526,37 @@ bool oled_off(void) {
     return !oled_active;
 }
 
+// Set the specific 8 lines rows of the screen to scroll.
+// 0 is the default for start, and 7 for end, which is the entire
+// height of the screen.  For 128x32 screens, rows 4-7 are not used.
+void oled_scroll_set_area(uint8_t start_line, uint8_t end_line) {
+    oled_scroll_start = start_line;
+    oled_scroll_end   = end_line;
+}
+
+void oled_scroll_set_speed(uint8_t speed) {
+    // Sets the speed for scrolling... does not take effect
+    // until scrolling is either started or restarted
+    // the ssd1306 supports 8 speeds
+    // FrameRate2   speed = 7
+    // FrameRate3   speed = 4
+    // FrameRate4   speed = 5
+    // FrameRate5   speed = 0
+    // FrameRate25  speed = 6
+    // FrameRate64  speed = 1
+    // FrameRate128 speed = 2
+    // FrameRate256 speed = 3
+    // for ease of use these are remaped here to be in order
+    static const uint8_t scroll_remap[8] = {7, 4, 5, 0, 6, 1, 2, 3};
+    oled_scroll_speed                    = scroll_remap[speed];
+}
+
 bool oled_scroll_right(void) {
     // Dont enable scrolling if we need to update the display
     // This prevents scrolling of bad data from starting the scroll too early after init
     if (!oled_dirty && !oled_scrolling) {
-        static const uint8_t PROGMEM display_scroll_right[] = {I2C_CMD, SCROLL_RIGHT, 0x00, 0x00, 0x00, 0x0F, 0x00, 0xFF, ACTIVATE_SCROLL};
-        if (I2C_TRANSMIT_P(display_scroll_right) != I2C_STATUS_SUCCESS) {
+        uint8_t display_scroll_right[] = {I2C_CMD, SCROLL_RIGHT, 0x00, oled_scroll_start, oled_scroll_speed, oled_scroll_end, 0x00, 0xFF, ACTIVATE_SCROLL};
+        if (I2C_TRANSMIT(display_scroll_right) != I2C_STATUS_SUCCESS) {
             print("oled_scroll_right cmd failed\n");
             return oled_scrolling;
         }
@@ -492,8 +569,8 @@ bool oled_scroll_left(void) {
     // Dont enable scrolling if we need to update the display
     // This prevents scrolling of bad data from starting the scroll too early after init
     if (!oled_dirty && !oled_scrolling) {
-        static const uint8_t PROGMEM display_scroll_left[] = {I2C_CMD, SCROLL_LEFT, 0x00, 0x00, 0x00, 0x0F, 0x00, 0xFF, ACTIVATE_SCROLL};
-        if (I2C_TRANSMIT_P(display_scroll_left) != I2C_STATUS_SUCCESS) {
+        uint8_t display_scroll_left[] = {I2C_CMD, SCROLL_LEFT, 0x00, oled_scroll_start, oled_scroll_speed, oled_scroll_end, 0x00, 0xFF, ACTIVATE_SCROLL};
+        if (I2C_TRANSMIT(display_scroll_left) != I2C_STATUS_SUCCESS) {
             print("oled_scroll_left cmd failed\n");
             return oled_scrolling;
         }

drivers/oled/oled_driver.h

@@ -131,7 +131,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #endif
 // unsigned char value of the last character in the font file
 #if !defined(OLED_FONT_END)
-#    define OLED_FONT_END 224
+#    define OLED_FONT_END 223
 #endif
 // Font render width
 #if !defined(OLED_FONT_WIDTH)
@@ -150,6 +150,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #    endif
 #endif
 
+#if !defined(OLED_I2C_TIMEOUT)
+#    define OLED_I2C_TIMEOUT 100
+#endif
+
 // OLED Rotation enum values are flags
 typedef enum {
     OLED_ROTATION_0   = 0,
@@ -200,6 +204,16 @@ void oled_write(const char *data, bool invert);
 // Advances the cursor to the next page, wiring ' ' to the remainder of the current page
 void oled_write_ln(const char *data, bool invert);
 
+// Pans the buffer to the right (or left by passing true) by moving contents of the buffer
+void oled_pan(bool left);
+
+void oled_write_raw(const char *data, uint16_t size);
+void oled_write_raw_byte(const char data, uint16_t index);
+
+// Sets a specific pixel on or off
+// Coordinates start at top-left and go right and down for positive x and y
+void oled_write_pixel(uint8_t x, uint8_t y, bool on);
+
 #if defined(__AVR__)
 // Writes a PROGMEM string to the buffer at current cursor position
 // Advances the cursor while writing, inverts the pixels if true
@@ -211,6 +225,8 @@ void oled_write_P(const char *data, bool invert);
 // Advances the cursor to the next page, wiring ' ' to the remainder of the current page
 // Remapped to call 'void oled_write_ln(const char *data, bool invert);' on ARM
 void oled_write_ln_P(const char *data, bool invert);
+
+void oled_write_raw_P(const char *data, uint16_t size);
 #else
 // Writes a string to the buffer at current cursor position
 // Advances the cursor while writing, inverts the pixels if true
@@ -220,6 +236,8 @@ void oled_write_ln_P(const char *data, bool invert);
 // Advances the cursor while writing, inverts the pixels if true
 // Advances the cursor to the next page, wiring ' ' to the remainder of the current page
 #    define oled_write_ln_P(data, invert) oled_write(data, invert)
+
+#    define oled_write_raw_P(data, size) oled_write_raw(data, size)
 #endif  // defined(__AVR__)
 
 // Can be used to manually turn on the screen if it is off
@@ -236,6 +254,18 @@ void oled_task(void);
 // Called at the start of oled_task, weak function overridable by the user
 void oled_task_user(void);
 
+// Set the specific 8 lines rows of the screen to scroll.
+// 0 is the default for start, and 7 for end, which is the entire
+// height of the screen.  For 128x32 screens, rows 4-7 are not used.
+void oled_scroll_set_area(uint8_t start_line, uint8_t end_line);
+
+// Sets scroll speed, 0-7, fastest to slowest. Default is three.
+// Does not take effect until scrolling is either started or restarted
+// the ssd1306 supports 8 speeds with the delay
+// listed below betwen each frame of the scrolling effect
+// 0=2, 1=3, 2=4, 3=5, 4=25, 5=64, 6=128, 7=256
+void oled_scroll_set_speed(uint8_t speed);
+
 // Scrolls the entire display right
 // Returns true if the screen was scrolling or starts scrolling
 // NOTE: display contents cannot be changed while scrolling

drivers/qwiic/micro_oled.c

@@ -40,7 +40,10 @@ const unsigned char* fonts_pointer[] = {font5x7, font8x16};
 uint8_t  foreColor, drawMode, fontWidth, fontHeight, fontType, fontStartChar, fontTotalChar, cursorX, cursorY;
 uint16_t fontMapWidth;
 
-#define _BV(x) (1 << (x))
+#ifndef _BV
+#    define _BV(x) (1 << (x))
+#endif
+
 #define swap(a, b)     \
     {                  \
         uint8_t t = a; \
@@ -49,7 +52,7 @@ uint16_t fontMapWidth;
     }
 
 uint8_t        micro_oled_transfer_buffer[20];
-static uint8_t micro_oled_screen_current[LCDWIDTH * LCDWIDTH / 8] = {0};
+static uint8_t micro_oled_screen_current[LCDWIDTH * LCDHEIGHT / 8] = {0};
 
 /* LCD Memory organised in 64 horizontal pixel and 6 rows of byte
    B  B .............B  -----
@@ -69,7 +72,7 @@ static uint8_t micro_oled_screen_current[LCDWIDTH * LCDWIDTH / 8] = {0};
   */
 
 #if LCDWIDTH == 64
-#    if LCDWIDTH == 48
+#    if LCDHEIGHT == 48
 static uint8_t micro_oled_screen_buffer[] = {
     // QMK Logo - generated at http://www.majer.ch/lcd/adf_bitmap.php
     // 64x48 image
@@ -79,32 +82,37 @@ static uint8_t micro_oled_screen_buffer[] = {
 #    endif
 #elif LCDWIDTH == 128
 #    if LCDHEIGHT == 32
-static uint8_t micro_oled_screen_buffer[LCDWIDTH * LCDWIDTH / 8] = {
+static uint8_t micro_oled_screen_buffer[LCDWIDTH * LCDHEIGHT / 8] = {
     // 128x32 qmk image
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xE0, 0xFC, 0xFC, 0xE0, 0xFC, 0xFC, 0xE0, 0xF0, 0xFC, 0xE0, 0xE0, 0xFC, 0xE0, 0xE0, 0xFC, 0xFC, 0xE0, 0xE0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x10, 0x10, 0x30, 0xE0, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x80, 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x00, 0x80, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x12, 0xB2, 0xB2, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x03, 0xFF, 0xFF, 0xFF, 0x03, 0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0x01, 0x03, 0xFF, 0xFF, 0xFF, 0xFF, 0xB7, 0xB2, 0xB2, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x02, 0x02, 0x03, 0x01, 0x00, 0x06, 0x1F, 0x10, 0x10, 0x10, 0x1F, 0x06, 0x00, 0x03, 0x1E, 0x18, 0x0F, 0x01, 0x0F, 0x18, 0x1E, 0x01, 0x00, 0x0F, 0x1F, 0x12, 0x02, 0x12, 0x13, 0x00, 0x00, 0x1F, 0x00, 0x00, 0x00, 0x0E, 0x1F, 0x12, 0x02, 0x12, 0x13, 0x00, 0x00, 0x1F, 0x10, 0x10, 0x10, 0x1F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x4D, 0x4D, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xF8, 0xF9, 0xF3, 0xF3, 0xC0, 0x80, 0xF3, 0xF3, 0xF3, 0xF9, 0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xED, 0x4D, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0x20, 0x10, 0x10, 0xE0, 0xC0, 0x00, 0x70, 0xC0, 0x00, 0x80, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x0C, 0x04, 0x04, 0x04, 0x04, 0x1C, 0xF0, 0x00, 0x00, 0xFC, 0x0C, 0x38, 0xE0, 0x00, 0x00, 0xC0, 0x38, 0x0C, 0xFC, 0x00, 0x00, 0xFC, 0xFC, 0x60, 0x90, 0x0C, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x07, 0x07, 0x3F, 0x3F, 0x07, 0x3F, 0x3F, 0x07, 0x0F, 0x3F, 0x07, 0x07, 0x3F, 0x07, 0x07, 0x3F, 0x3F, 0x07, 0x07, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x06, 0x04, 0x04, 0x07, 0x01, 0x00, 0x00, 0x13, 0x1E, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x06, 0x04, 0x04, 0x04, 0x04, 0x07, 0x0D, 0x08, 0x00, 0x07, 0x00, 0x00, 0x01, 0x07, 0x07, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x07, 0x07, 0x00, 0x01, 0x03, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 #    elif LCDHEIGHT == 64
-static uint8_t micro_oled_screen_buffer[LCDWIDTH * LCDWIDTH / 8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                                                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xC0, 0xC0, 0xC0, 0xF8, 0xFC, 0xFC, 0xFE, 0xFE, 0xFF, 0x7F, 0x7E, 0xFE, 0xFF, 0xFF, 0xFE, 0xFE, 0x7F, 0x7F, 0xFE, 0xFE, 0xFF, 0xFF, 0xFE, 0x7E, 0x7F, 0xFF, 0xFE, 0xFE, 0xFC, 0xFC, 0xF8, 0xC0, 0xC0, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                                                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x88, 0x88, 0xDD, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xDD, 0x88, 0x88, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                                                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0x99, 0x99, 0x99, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xF8, 0xF0, 0xF3, 0xF3, 0xE7, 0xE7, 0x00, 0x00, 0xE7, 0xE7, 0xF3, 0xF3, 0xF0, 0xF8, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x99, 0x99, 0x99, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                                                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x0F, 0x1F, 0x3F, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0x3F, 0x1F, 0x0F, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                                                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x03, 0x01, 0x00, 0x80, 0x03, 0x03, 0x00, 0x00, 0x01, 0x03, 0x00, 0x80, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                                                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x11, 0x11, 0x11, 0x0E, 0x00, 0x70, 0x88, 0x04, 0x04, 0x04, 0xF8, 0x00, 0x00, 0x3C, 0xE0, 0xC0, 0x38, 0x1C, 0xE0, 0x80, 0x70, 0x0C, 0x00, 0xF8, 0xAC, 0x24, 0x24, 0x3C, 0x30, 0x00, 0x00, 0xFC, 0x0C, 0x04, 0x00, 0xF8, 0xAC, 0x24, 0x24, 0x2C, 0x30, 0x00, 0x70, 0xDC, 0x04, 0x04, 0x88, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x8C, 0x04, 0x04, 0xF8, 0x00, 0x04, 0x3C, 0xE0, 0x80, 0xF0, 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0x83, 0x01, 0x01, 0x01, 0x81, 0xFE, 0x3C, 0x00, 0x00, 0xFF, 0x03, 0x0E, 0x70, 0xC0, 0xE0, 0x38, 0x06, 0x03, 0xFF, 0x00, 0x00, 0xFF, 0x18, 0x38, 0x66, 0xC3, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                                                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x04, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x03, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-                                                                    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+static uint8_t micro_oled_screen_buffer[LCDWIDTH * LCDHEIGHT / 8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                                                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xC0, 0xC0, 0xC0, 0xF8, 0xFC, 0xFC, 0xFE, 0xFE, 0xFF, 0x7F, 0x7E, 0xFE, 0xFF, 0xFF, 0xFE, 0xFE, 0x7F, 0x7F, 0xFE, 0xFE, 0xFF, 0xFF, 0xFE, 0x7E, 0x7F, 0xFF, 0xFE, 0xFE, 0xFC, 0xFC, 0xF8, 0xC0, 0xC0, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                                                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x88, 0x88, 0xDD, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xDD, 0x88, 0x88, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                                                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x99, 0x99, 0x99, 0x99, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xF8, 0xF0, 0xF3, 0xF3, 0xE7, 0xE7, 0x00, 0x00, 0xE7, 0xE7, 0xF3, 0xF3, 0xF0, 0xF8, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x99, 0x99, 0x99, 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                                                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x0F, 0x1F, 0x3F, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0xFF, 0xFF, 0x3F, 0x3F, 0x3F, 0x1F, 0x0F, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                                                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x03, 0x01, 0x00, 0x80, 0x03, 0x03, 0x00, 0x00, 0x01, 0x03, 0x00, 0x80, 0x01, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                                                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x11, 0x11, 0x11, 0x0E, 0x00, 0x70, 0x88, 0x04, 0x04, 0x04, 0xF8, 0x00, 0x00, 0x3C, 0xE0, 0xC0, 0x38, 0x1C, 0xE0, 0x80, 0x70, 0x0C, 0x00, 0xF8, 0xAC, 0x24, 0x24, 0x3C, 0x30, 0x00, 0x00, 0xFC, 0x0C, 0x04, 0x00, 0xF8, 0xAC, 0x24, 0x24, 0x2C, 0x30, 0x00, 0x70, 0xDC, 0x04, 0x04, 0x88, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x8C, 0x04, 0x04, 0xF8, 0x00, 0x04, 0x3C, 0xE0, 0x80, 0xF0, 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0x83, 0x01, 0x01, 0x01, 0x81, 0xFE, 0x3C, 0x00, 0x00, 0xFF, 0x03, 0x0E, 0x70, 0xC0, 0xE0, 0x38, 0x06, 0x03, 0xFF, 0x00, 0x00, 0xFF, 0x18, 0x38, 0x66, 0xC3, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                                                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x04, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x03, 0x02, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                                                     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 // TODO: generate bitmap of QMK logo here
 #    endif
 #else
-// catchall for custom screen szies
-static uint8_t micro_oled_screen_buffer[LCDWIDTH * LCDWIDTH / 8] = {0};
+// catchall for custom screen sizes
+static uint8_t micro_oled_screen_buffer[LCDWIDTH * LCDHEIGHT / 8] = {0};
 #endif
 
 void micro_oled_init(void) {
     i2c_init();
+
+#ifdef __AVR__
+    i2c_start(I2C_ADDRESS_SA0_1, 100);
+#else
     i2c_start(I2C_ADDRESS_SA0_1);
+#endif
 
     // Display Init sequence for 64x48 OLED module
     send_command(DISPLAYOFF);  // 0xAE
@@ -205,7 +213,7 @@ void clear_screen(void) {
 */
 void clear_buffer(void) {
     // 384
-    memset(micro_oled_screen_buffer, 0, LCDWIDTH * LCDWIDTH / 8);
+    memset(micro_oled_screen_buffer, 0, LCDWIDTH * LCDHEIGHT / 8);
 }
 
 /** \brief Invert display.

drivers/qwiic/micro_oled.h

@@ -63,7 +63,7 @@ void draw_string(uint8_t x, uint8_t y, char* string, uint8_t color, uint8_t mode
 #ifndef LCDWIDTH
 #    define LCDWIDTH 64
 #endif
-#ifndef LCDWIDTH
+#ifndef LCDHEIGHT
 #    define LCDHEIGHT 48
 #endif
 #define FONTHEADERSIZE 6
@@ -131,4 +131,4 @@ typedef enum CMD {
     CMD_GETLCDHEIGHT,  // 16
     CMD_SETCOLOR,      // 17
     CMD_SETDRAWMODE    // 18
-} commCommand_t;
+} commCommand_t;

drivers/ugfx/gdisp/is31fl3731c/gdisp_lld_config.h

@@ -24,10 +24,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* Driver hardware support.                                                  */
 /*===========================================================================*/
 
-#    define GDISP_HARDWARE_FLUSH TRUE  // This controller requires flushing
-#    define GDISP_HARDWARE_DRAWPIXEL TRUE
-#    define GDISP_HARDWARE_PIXELREAD TRUE
-#    define GDISP_HARDWARE_CONTROL TRUE
+#    define GDISP_HARDWARE_FLUSH GFXON  // This controller requires flushing
+#    define GDISP_HARDWARE_DRAWPIXEL GFXON
+#    define GDISP_HARDWARE_PIXELREAD GFXON
+#    define GDISP_HARDWARE_CONTROL GFXON
 
 #    define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_GRAY256
 

drivers/ugfx/gdisp/st7565/gdisp_lld_config.h

@@ -14,11 +14,11 @@
 /* Driver hardware support.                                                  */
 /*===========================================================================*/
 
-#    define GDISP_HARDWARE_FLUSH TRUE  // This controller requires flushing
-#    define GDISP_HARDWARE_DRAWPIXEL TRUE
-#    define GDISP_HARDWARE_PIXELREAD TRUE
-#    define GDISP_HARDWARE_CONTROL TRUE
-#    define GDISP_HARDWARE_BITFILLS TRUE
+#    define GDISP_HARDWARE_FLUSH GFXON  // This controller requires flushing
+#    define GDISP_HARDWARE_DRAWPIXEL GFXON
+#    define GDISP_HARDWARE_PIXELREAD GFXON
+#    define GDISP_HARDWARE_CONTROL GFXON
+#    define GDISP_HARDWARE_BITFILLS GFXON
 
 #    define GDISP_LLD_PIXELFORMAT GDISP_PIXELFORMAT_MONO
 

drivers/ws2812.h

@@ -1,11 +1,4 @@
 /*
- * light weight WS2812 lib include
- *
- * Version 2.3  - Nev 29th 2015
- * Author: Tim (cpldcpu@gmail.com)
- *
- * Please do not change this file! All configuration is handled in "ws2812_config.h"
- *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation, either version 2 of the License, or
@@ -24,18 +17,24 @@
 
 #include "quantum/color.h"
 
+/*
+ * Older WS2812s can handle a reset time (TRST) of 50us, but recent
+ * component revisions require a minimum of 280us.
+ */
+
+#if !defined(WS2812_TRST_US)
+#    define WS2812_TRST_US 280
+#endif
+
 /* User Interface
  *
  * Input:
  *         ledarray:           An array of GRB data describing the LED colors
  *         number_of_leds:     The number of LEDs to write
- *         pinmask (optional): Bitmask describing the output bin. e.g. _BV(PB0)
  *
  * The functions will perform the following actions:
  *         - Set the data-out pin as output
  *         - Send out the LED data
- *         - Wait 50<EFBFBD>s to reset the LEDs
+ *         - Wait 50us to reset the LEDs
  */
 void ws2812_setleds(LED_TYPE *ledarray, uint16_t number_of_leds);
-void ws2812_setleds_pin(LED_TYPE *ledarray, uint16_t number_of_leds, uint8_t pinmask);
-void ws2812_setleds_rgbw(LED_TYPE *ledarray, uint16_t number_of_leds);