Add firmware, docker build scripts

Author: cibomahto

docker/Dockerfile

@@ -0,0 +1,31 @@
+FROM docker.io/library/ubuntu:23.04 as base
+
+RUN apt-get -qq update -y
+
+RUN DEBIAN_FRONTEND=noninteractive \
+       apt-get install -y --no-install-recommends \
+            build-essential \
+            libusb-1.0.0-dev \
+            git \
+            sdcc \
+            ca-certificates
+
+# Cleanup cached apt stuff
+RUN rm -rf /var/lib/apt/lists/*
+
+FROM base as toolsbuilder
+
+# Tools that needs to be built from source
+
+RUN git clone https://github.com/ole00/chprog.git /src
+WORKDIR /src
+RUN ./build_linux.sh
+RUN cp ./chprog /usr/local/bin
+
+From base
+COPY --from=toolsbuilder /usr/local/ /usr/local
+
+RUN apt-get -qq update -y
+
+# Needed for git --describe to work
+RUN git config --global --add safe.directory /build

docker/Makefile

@@ -0,0 +1,32 @@
+all:
+	@echo "Build targets: "
+	@echo "build-docker		Build an image for building tools with Docker"
+	@echo "build			Build project assets from within Docker container"
+	@echo "run			    Run a shell using the above image with Docker"
+
+build-docker:
+	docker build -t ch55x_programmer-builder -f Dockerfile .
+
+COMMON = run \
+		--rm \
+		--mount type=bind,source="`pwd`/../src",target=/build \
+		-w /build \
+
+reset_controller.bin:
+	docker ${COMMON} \
+		-it ch55x_programmer-builder \
+		/usr/bin/bash -c "make"
+
+build: reset_controller.bin
+
+flash: reset_controller.bin
+	docker ${COMMON} \
+		--privileged -v /dev/bus/usb:/dev/bus/usb \
+		-it ch55x_programmer-builder \
+		/usr/bin/bash -c "chprog reset_controller.bin"
+		
+run:
+	docker ${COMMON} \
+		-it ch55x_programmer-builder \
+		/usr/bin/bash
+

src/.gitignore

@@ -0,0 +1,10 @@
+*.asm
+*.lst
+*.rel
+*.rst
+*.sym
+*.bin
+*.ihx
+*.lk
+*.map
+*.mem

src/Makefile

@@ -0,0 +1,11 @@
+TARGET = reset_controller
+FREQ_SYS = 16000000
+
+C_FILES = \
+	main.c \
+	include/debug.c
+
+pre-flash:
+	
+
+include include/Makefile.include

src/include/Makefile.include

@@ -0,0 +1,68 @@
+#######################################################
+
+# toolchain
+CC = sdcc
+OBJCOPY = objcopy
+PACK_HEX = packihx
+WCHISP ?= wchisptool -g -f
+
+#######################################################
+
+FREQ_SYS ?= 24000000
+
+XRAM_SIZE ?= 0x0400
+
+XRAM_LOC ?= 0x0000
+
+CODE_SIZE ?= 0x3800
+
+ROOT_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+
+CFLAGS := -V -mmcs51 --model-small \
+	--xram-size $(XRAM_SIZE) --xram-loc $(XRAM_LOC) \
+	--code-size $(CODE_SIZE) \
+	-I$(ROOT_DIR)../include -DFREQ_SYS=$(FREQ_SYS) \
+	$(EXTRA_FLAGS)
+
+LFLAGS := $(CFLAGS)
+
+RELS := $(C_FILES:.c=.rel)
+
+print-%  : ; @echo $* = $($*)
+
+%.rel : %.c
+	$(CC) -c $(CFLAGS) $<
+
+# Note: SDCC will dump all of the temporary files into this one, so strip the paths from RELS
+# For now, get around this by stripping the paths off of the RELS list.
+
+$(TARGET).ihx: $(RELS)
+	$(CC) $(notdir $(RELS)) $(LFLAGS) -o $(TARGET).ihx
+
+$(TARGET).hex: $(TARGET).ihx
+	$(PACK_HEX) $(TARGET).ihx > $(TARGET).hex
+
+$(TARGET).bin: $(TARGET).ihx
+	$(OBJCOPY) -I ihex -O binary $(TARGET).ihx $(TARGET).bin
+	
+flash: $(TARGET).bin pre-flash
+	$(WCHISP) $(TARGET).bin
+
+.DEFAULT_GOAL := all
+all: $(TARGET).bin $(TARGET).hex
+
+clean:
+	rm -f \
+	$(notdir $(RELS:.rel=.asm)) \
+	$(notdir $(RELS:.rel=.lst)) \
+	$(notdir $(RELS:.rel=.mem)) \
+	$(notdir $(RELS:.rel=.rel)) \
+	$(notdir $(RELS:.rel=.rst)) \
+	$(notdir $(RELS:.rel=.sym)) \
+	$(notdir $(RELS:.rel=.adb)) \
+	$(TARGET).lk \
+	$(TARGET).map \
+	$(TARGET).mem \
+	$(TARGET).ihx \
+	$(TARGET).hex \
+	$(TARGET).bin