adafruit · dhalbert · Apr 18, 2023 · Mar 28, 2023 · Mar 28, 2023 · Mar 29, 2023
diff --git a/.gitmodules b/.gitmodules
@@ -324,3 +324,10 @@
 	path = ports/broadcom/peripherals
 	url = https://github.com/adafruit/broadcom-peripherals.git
 	branch = main-build
+[submodule "ports/silabs/gecko_sdk"]
+	path = ports/silabs/gecko_sdk
+	url = https://github.com/SiliconLabs/gecko_sdk.git
+	branch = v4.2.1
+[submodule "ports/silabs/tools/slc_cli_linux"]
+	path = ports/silabs/tools/slc_cli_linux
+	url = https://github.com/SiliconLabs/circuitpython_slc_cli_linux
diff --git a/conf.py b/conf.py
@@ -216,6 +216,7 @@ def autoapi_prepare_jinja_env(jinja_env):
                     "ports/nrf/usb",
                     "ports/raspberrypi/sdk",
                     "ports/raspberrypi/lib",
+                    "ports/silabs",
                     "ports/stm/st_driver",
                     "ports/stm/packages",
                     "ports/stm/peripherals",

diff --git a/data/nvm.toml b/data/nvm.toml
diff --git a/docs/shared_bindings_matrix.py b/docs/shared_bindings_matrix.py
@@ -40,6 +40,7 @@
     "mimxrt10xx",
     "nrf",
     "raspberrypi",
+    "silabs",
     "stm",
 ]
 

diff --git a/ports/silabs/Makefile b/ports/silabs/Makefile
@@ -0,0 +1,214 @@
+# This file is part of Adafruit for EFR32 project
+#
+# The MIT License (MIT)
+#
+# Copyright 2023 Silicon Laboratories Inc. www.silabs.com
+#
+# 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.
+#
+
+.SUFFIXES:				# ignore builtin rules
+.PHONY: all clean slc-clean slc-generate dependents
+# Values set by the initial generation
+PROJECTNAME = circuitpython_efr32
+# If the build directory is not given, make it reflect the board name.
+SILABS_BUILD = build-$(BOARD)
+# Build dir for CircuitPython
+BUILD ?= $(SILABS_BUILD)
+# Override Build Directories
+OUTPUT_DIR = $(SILABS_BUILD)
+# Python script to generate pins and pins functionalities code
+PY_GEN_PINS_SRC ?= tools/make_pins.py
+# SLC tool path
+SLC_PATH = $(realpath $(CURDIR))/tools/slc_cli_linux
+
+BUILD_VERBOSE ?= 1
+
+CFLAGS = $(INCLUDES) $(C_DEFS) $(C_FLAGS) \
+	-Wno-expansion-to-defined \
+	-Wno-unused-parameter \
+	-Wno-missing-field-initializers \
+	-Wno-type-limits
+
+ASMFLAGS = $(INCLUDES) $(ASM_DEFS) $(ASM_FLAGS) $(DEPFLAGS)
+
+include ../../py/circuitpy_mkenv.mk
+
+CROSS_COMPILE = arm-none-eabi-
+
+MCU_SERIES_LOWER = $(shell echo $(MCU_SERIES) | tr '[:upper:]' '[:lower:]')
+MCU_VARIANT_LOWER = $(shell echo $(MCU_VARIANT) | tr '[:upper:]' '[:lower:]')
+
+# Header files folders include
+INC += -I.
+INC += -I../..
+INC += -I$(BUILD)
+INC += -I$(BUILD)/genhdr
+INC += -I$(SILABS_BUILD)/autogen
+INC += -I$(SILABS_BUILD)/config
+INC += -I./boards
+INC += -I./peripherals
+INC += -I../../lib/mp-readline
+
+#Debugging/Optimization
+ifeq ($(DEBUG), 1)
+	CFLAGS += -g3
+	# You may want to enable these flags to make setting breakpoints easier.
+	CFLAGS += -fno-inline -fno-ipa-sra -Og
+else
+	CFLAGS += -DNDEBUG
+	OPTIMIZATION_FLAGS ?= -Os -fno-inline-functions
+	CFLAGS += -g
+endif
+
+# to override compiler optimization level, set in boards/$(BOARD)/mpconfigboard.mk
+CFLAGS += $(OPTIMIZATION_FLAGS)
+CFLAGS += $(INC) $(BASE_CFLAGS) $(C_DEFS) $(CFLAGS_MOD) $(COPT)
+CFLAGS += -DEFR32_SERIES_LOWER='"$(MCU_VARIANT)"'
+CFLAGS += -Wno-undef -Wno-shadow -Wno-cast-align -Wno-nested-externs -Wno-strict-prototypes
+
+SRC_C += \
+	background.c \
+	mphalport.c \
+	$(SILABS_BUILD)/pins.c\
+
+ifeq ('$(BOARD)','brd2601b')
+SRC_C += boards/$(BOARD)/sensor.c
+endif
+
+SRC_S = boards/mp_efr32xg24_gchelper.s
+
+SRC_COMMON_HAL_EXPANDED = $(addprefix shared-bindings/, $(SRC_COMMON_HAL)) \
+						  $(addprefix shared-bindings/, $(SRC_BINDINGS_ENUMS)) \
+						  $(addprefix common-hal/, $(SRC_COMMON_HAL))
+
+SRC_SHARED_MODULE_EXPANDED = $(addprefix shared-bindings/, $(SRC_SHARED_MODULE)) \
+							 $(addprefix shared-module/, $(SRC_SHARED_MODULE)) \
+							 $(addprefix shared-module/, $(SRC_SHARED_MODULE_INTERNAL))
+
+# There may be duplicates between SRC_COMMON_HAL_EXPANDED and SRC_SHARED_MODULE_EXPANDED,
+# because a few modules have files both in common-hal/ and shared-module/.
+# Doing a $(sort ...) removes duplicates as part of sorting.
+SRC_COMMON_HAL_SHARED_MODULE_EXPANDED = $(sort $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED))
+
+ifneq ($(FROZEN_MPY_DIR),)
+FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR) -type f -name '*.py')
+FROZEN_MPY_MPY_FILES := $(addprefix $(BUILD)/,$(FROZEN_MPY_PY_FILES:.py=.mpy))
+endif
+
+OBJ += $(PY_O) $(SUPERVISOR_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_COMMON_HAL_SHARED_MODULE_EXPANDED:.c=.o))
+ifeq ($(INTERNAL_LIBM),1)
+OBJ += $(addprefix $(BUILD)/, $(SRC_LIBM:.c=.o))
+endif
+OBJ += $(addprefix $(BUILD)/, $(SRC_CIRCUITPY_COMMON:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_MOD:.c=.o))
+
+$(BUILD)/$(FATFS_DIR)/ff.o: COPT += -Os
+$(filter $(PY_BUILD)/../extmod/vfs_fat_%.o, $(PY_O)): COPT += -Os
+
+# List of sources for qstr extraction
+SRC_QSTR += $(SRC_C) $(SRC_SUPERVISOR) $(SRC_MOD) $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED)
+# Sources that only hold QSTRs after pre-processing.
+SRC_QSTR_PREPROCESSOR +=
+
+MCU_SECTIONS = $^ $@
+
+# Include sub-makefiles
+-include $(SILABS_BUILD)/$(PROJECTNAME).project.mak
+
+# Default goal
+all: $(OUTPUT_DIR)/firmware.bin
+
+$(OUTPUT_DIR)/firmware.bin: $(SILABS_BUILD)/$(PROJECTNAME).Makefile $(OUTPUT_DIR)/firmware.hex
+	+@$(MAKE) --no-print-directory $(OUTPUT_DIR)/firmware.out
+	@echo 'Done.'
+
+$(SILABS_BUILD)/$(PROJECTNAME).Makefile:
+	+@$(MAKE) --no-print-directory slc-generate
+
+$(OUTPUT_DIR)/firmware.out: $(SILABS_BUILD)/pin_functions.h $(SILABS_BUILD)/pins.c $(OBJ) $(OBJS) $(LIB_FILES)
+	@echo 'Linking $(OUTPUT_DIR)/firmware.out'
+	@echo "$(OBJS) $(OBJ)" > $(OUTPUT_DIR)/linker_objs
+	$(CC) $(LD_FLAGS) @$(OUTPUT_DIR)/linker_objs $(LIBS) -o $(OUTPUT_DIR)/firmware.out
+	$(OBJCOPY) $(OUTPUT_DIR)/firmware.out -O binary $(OUTPUT_DIR)/firmware.bin
+
+$(OUTPUT_DIR)/firmware.hex:
+
+$(SILABS_BUILD)/pin_functions.h:
+	$(STEPECHO) "GEN $@"
+	$(Q)$(PYTHON) $(PY_GEN_PINS_SRC) -e $@ boards/$(BOARD)/pins.csv boards/$(BOARD)/pin_functions.csv
+	@-$(RM) pins.c
+
+$(SILABS_BUILD)/pins.c:
+	$(STEPECHO) "GEN $@"
+	$(Q)$(PYTHON) $(PY_GEN_PINS_SRC) -s $@ boards/$(BOARD)/pins.csv boards/$(BOARD)/pin_functions.csv
+	@-$(RM) pin_functions.h
+
+slc-generate:
+ifeq (,$(wildcard $(SLC_PATH)/bin/slc-cli/developer/adapter_packs/python/lib/python3.6/jinja2))
+	-@ln -s $(SLC_PATH)/bin/slc-cli/developer/adapter_packs/python/lib/python3.6/site-packages/jinja2 \
+			$(SLC_PATH)/bin/slc-cli/developer/adapter_packs/python/lib/python3.6/jinja2
+	-@ln -s $(SLC_PATH)/bin/slc-cli/developer/adapter_packs/python/lib/python3.6/site-packages/markupsafe \
+			$(SLC_PATH)/bin/slc-cli/developer/adapter_packs/python/lib/python3.6/markupsafe
+endif
+	@echo 'SLC generates project'
+	@$(SLC_PATH)/slc configuration --sdk gecko_sdk
+	@$(SLC_PATH)/slc signature trust -extpath cp_efr32_extension
+	@$(SLC_PATH)/slc signature trust --sdk gecko_sdk
+	@$(SLC_PATH)/slc generate -name=$(PROJECTNAME) $(PROJECTNAME).slcp --sdk gecko_sdk --with $(BOARD_BRD) -tlcn gcc -d=$(SILABS_BUILD)
+	@sed -i 's/ autogen\// $(SILABS_BUILD)\/autogen\//g' $(SILABS_BUILD)/circuitpython_efr32.project.mak
+	@sed -i 's/-T"autogen\//-T"$(SILABS_BUILD)\/autogen\//g' $(SILABS_BUILD)/circuitpython_efr32.project.mak
+
+#Override ECHO
+$(OBJS): ECHO =
+$(OBJS):
+
+$(OUTPUT_DIR)/%.o: %.c
+	@echo 'Building $<'
+	@$(MKDIR_P) $(@D)
+	$(ECHO)$(CC) $(CFLAGS) -c -o $@ $<
+
+$(OUTPUT_DIR)/%.o: %.cpp
+	@echo 'Building $<'
+	@$(MKDIR_P) $(@D)
+	$(ECHO)$(CXX) $(CXXFLAGS) -c -o $@ $<
+
+$(OUTPUT_DIR)/%.o: %.cc
+	@echo 'Building $<'
+	@$(MKDIR_P) $(@D)
+	$(ECHO)$(CXX) $(CXXFLAGS) -c -o $@ $<
+
+$(OUTPUT_DIR)/%.o: %.s
+	@echo 'Building $<'
+	@$(MKDIR_P) $(@D)
+	$(ECHO)$(CC) $(ASMFLAGS) -c -o $@ $<
+
+$(OUTPUT_DIR)/%.o: %.S
+	@echo 'Building $<'
+	@$(MKDIR_P) $(@D)
+	$(ECHO)$(CC) $(ASMFLAGS) -c -o $@ $<
+
+include $(TOP)/py/mkrules.mk
+
+# Print out the value of a make variable.
+# https://stackoverflow.com/questions/16467718/how-to-print-out-a-variable-in-makefile
+print-%:
+	@echo $* = $($*)
diff --git a/ports/silabs/README.md b/ports/silabs/README.md
@@ -0,0 +1,132 @@
+# Circuitpython on EFR32 #
+![GitHub](https://img.shields.io/badge/Technology-Bluetooth_BLE-green)
+![GitHub](https://img.shields.io/badge/CircuitPython-8.1.0--beta.0-green)
+![GitHub](https://img.shields.io/badge/GSDK-v4.2.1-green)
+![GitHub](https://img.shields.io/badge/SLC-5.6.3.0-green)
+![GitHub](https://img.shields.io/badge/License-MIT-green)
+![GitHub](https://img.shields.io/badge/GCC_build-passing-green)
+
+This port brings the Silicon Labs EFR32 series of MCUs to Circuitpython.
+
+Refer to **mpconfigport.mk** for a full list of enabled modules sorted by family.
+
+## How this port is organized: ##
+
+- **boards/** contains the configuration files for each development board and breakout available on the port, as well as system files and both shared and SoC-specific linker files. Board configuration includes a pin mapping of the board, oscillator information, board-specific build flags, and setup for some other peripheral where applicable.
+- **common-hal/** contains the port-specific module implementations, used by shared-module and shared-bindings.
+- **peripherals/** contains peripheral setup files and peripheral mapping information, sorted by family and sub-variant. Most files in this directory can be generated with the python scripts in **tools/**.
+- **supervisor/** contains port-specific implementations of internal flash and serial, as well as the **port.c** file, which initializes the port at startup.
+- **tools/** contains Silicon Labs configurator (SLC) tool, python scripts for generating peripheral and pin mapping files in **peripherals/** and **board/**.
+
+At the root level, refer to **mpconfigboard.h** and **mpconfigport.mk** for port specific settings and a list of enabled modules.
+
+## Prerequisites ##
+Please ensure you set up your build environment appropriately, as per the guide. You will need:
+
+- Linux: https://learn.adafruit.com/building-circuitpython/linux
+- Windows Subsystem for Linux (WSL): https://learn.adafruit.com/building-circuitpython/windows-subsystem-for-linux
+- MacOS: Not supported yet
+
+Install necessary packages
+
+    $ sudo apt install default-jre gcc-arm-none-eabi wget python3 python3-pip git git-lfs gettext uncrustify
+    $ sudo python -m pip install --upgrade pip
+
+## Board supported ##
+
+| Board                       | Code         | Build CMD                                  |
+| --------------------------- | ------------ | ------------------------------------------ |
+| xG24 Dev Kit                | brd2601b     | devkit_xg24_brd2601b                       |
+| xG24 Explorer Kit           | brd2703a     | explorerkit_xg24_brd2703a                  |
+| Sparkfun Thing Plus MGM240P | brd2704a     | sparkfun_thingplus_matter_mgm240p_brd2704a |
+
+## Build instructions ##
+
+Ensure your clone of Circuitpython is ready to build by following the [guide on the Adafruit Website](https://learn.adafruit.com/building-circuitpython/build-circuitpython). This includes installing the toolchain, synchronizing submodules, and running `mpy-cross`.
+
+Clone the source code of CircuitPython from Github:
+
+    $  git clone https://github.com/SiliconLabs/circuitpython.git
+    $  cd circuitpython
+    $  make fetch-submodules
+
+Checkout the branch or tag you want to build. For example:
+
+    $  git checkout main
+
+Following the guideline below to install required packages for SLC tool:
+    https://www.silabs.com/documents/public/user-guides/ug520-software-project-generation-configuration-with-slc-cli.pdf
+
+Once the one-time build tasks are complete, you can build at any time by navigating to the port directory:
+
+    $ make BOARD=explorerkit_xg24_brd2703a
+
+You may also build with certain flags available in the makefile, depending on your board and development goals:
+
+    $ make BOARD=explorerkit_xg24_brd2703a DEBUG=1
+
+Clean project by using:
+
+    $ make BOARD=explorerkit_xg24_brd2703a clean
+
+## Bring-up on the board ##
+
+### Getting a REPL prompt ###
+
+Connect the devkit to the PC via the USB cable. The board uses serial for REPL access and debugging because the EFR32 chips has no USB support.
+
+#### Windows ####
+
+On Windows, we need to install a serial console e.g., PuTTY, MobaXterm. The JLink CDC UART Port can be found in the Device Manager.
+
+#### Linux ####
+
+Open a terminal and issue the following command: 
+
+    $ ls /dev/ttyACM*
+
+Then note down the correct name and substitute com-port-name in the following command with it: 
+
+    $ screen /dev/'com-port-name'
+
+### Using the REPL prompt ###
+
+After flashing the firmware to the board, at your first connecting to the board, you might see a blank screen. Press enter and you should be presented with a Circuitpython prompt, >>>. If not, try to reset the board (see instructions below).
+
+You can now type in simple commands such as: 
+
+```sh
+>>> print("Hello world!") 
+
+Hello world
+```
+
+If something goes wrong with the board, you can reset it. Pressing CTRL+D when the prompt is open performs a soft reset.
+
+### Recommended editors ###
+
+**Thonny** is a simple code editor that works with the Adafruit CircuitPython boards. 
+
+Config serial: Tools > Options > Interpreter > Select MicroPython > Select Port Jlink CDC UART Port
+
+### Running CircuitPython scripts ###
+
+At the boot stage, two scripts will be run (if not booting in safe mode). First, the file  boot.py  will be executed. The file **boot.py** can be used to perform the initial setup. Then, after boot.py has been completed, the file **code.py** will be executed.  
+
+After code.py has finished executing, a REPL prompt will be presented on the serial port. Other files can also be executed by using the **Thonny** editors or using **Ampy** tool.
+
+![Thony](./res/Thony.png)
+
+With the boards which support USB mass storage, we can drag the files to the board file system. However, because the EFR32 boards don’t support USB mass storage, we need to use a tool like **Ampy** to copy the file to the board. You can use the latest version of **Ampy** and its  command to copy the module directories to the board.
+
+Refer to the guideline below for installing the **Ampy** tool: 
+
+https://learn.adafruit.com/micropython-basics-load-files-and-run-code/install-ampy  
+
+## Modules supported ##
+
+| Board                       | Modules Available|
+| --------------------------- | ---------------- |
+| xG24 Dev Kit                |  _asyncio, _bleio, _pixelmap, adafruit_ble, adafruit_bus_device, adafruit_pixelbuf, adafruit_register, aesio,analogio, array, atexit, binascii, bitmaptools, board, builtins, busio, collections, digitalio, displayio,errno, fontio, framebufferio, gc, getpass, gifio, json, math, microcontroller, micropython, msgpack, nvm, onewireio, os, pwmio, rainbowio, random, re, rtc, select, sharpdisplay, storage, struct, supervisor, sys, terminalio, time, traceback, ulab, uselect, vectorio, watchdog, zlib |
+| xG24 Explorer Kit           |  _asyncio, _bleio, _pixelmap, adafruit_ble, adafruit_bus_device, adafruit_pixelbuf, adafruit_register, aesio,analogio, array, atexit, binascii, bitmaptools, board, builtins, busio, collections, digitalio, displayio,errno, fontio, framebufferio, gc, getpass, gifio, json, math, microcontroller, micropython, msgpack, nvm, onewireio, os, pwmio, rainbowio, random, re, rtc, sdcardio, select, sharpdisplay, storage, struct, supervisor, sys, terminalio, time, traceback, ulab, uselect, vectorio, watchdog, zlib |
+| Sparkfun Thing Plus MGM240P | _asyncio, _bleio, _pixelmap, adafruit_ble, adafruit_bus_device, adafruit_pixelbuf, adafruit_register, aesio,analogio, array, atexit, binascii, bitmaptools, board, builtins, busio, collections, digitalio, displayio,errno, fontio, framebufferio, gc, getpass, gifio, json, math, microcontroller, micropython, msgpack, nvm, onewireio, os, pwmio, rainbowio, random, re, rtc, sdcardio, select, sharpdisplay, storage, struct, supervisor, sys, terminalio, time, traceback, ulab, uselect, vectorio, watchdog, zlib |
-Original file line number
+Diff line change
@@ Expand Up / @@ -40,6 +40,7 @@ @@
         "mimxrt10xx",
         "nrf",
         "raspberrypi",
+        "silabs",
         "stm",
     ]
@@ Expand Down @@