makefile

# Micron makefile
# Copyright (c) 2024 bellrise

VER_MAJ := 0
VER_MIN := 6

# These micron_* headers get generated on build, they provide some reflection
# for the C code about configuration or a list of available drivers.

GENCONF  := build/include/micron_genconfig.h
DRVLIST  := build/include/micron_drvlist.h
LWIPCONF := build/include/lwipopts.h


__default: build firmware

firmware: build pios $(GENCONF) $(DRVLIST) $(LWIPCONF)
	@make --no-print-directory -j $(shell nproc) -C build

build/project:
	@echo "See ./dist/configure to setup a build"
	@exit 1

build/Makefile:
	cmake -S build -B build

build: build/project build/Makefile
	@[ -d build ] || (echo "No project setup yet, see './dist/configure'" && exit 1)
	mkdir -p build/include
	dist/mkversion $(VER_MAJ) $(VER_MIN) > inc/micron/version.h

build/include/piocode:
	mkdir -p build/include/piocode

pios: build/include/piocode build/include/piocode/onewire.h

build/include/piocode/onewire.h: src/pio/onewire.pio
	pioasm -o c-sdk $< > $@

$(LWIPCONF): dist/lwipopts.h
	cp dist/lwipopts.h build/include/lwipopts.h

$(DRVLIST): $(wildcard src/drv/*.c)
	dist/mkdrv > $@

$(GENCONF): dist/default.config dist/local.config
	dist/mkgenconfig > $@

clean:
	make --no-print-directory -C build clean/fast >/dev/null
	rm -rf build/include

distclean:
	rm -rf build

compile_flags.txt: build/project
	find ${PICO_SDK_PATH}/src/${BOARD} ${PICO_SDK_PATH}/src/rp2_common \
		${PICO_SDK_PATH}/src/boards ${PICO_SDK_PATH}/src/common \
		-type d -name include -exec echo -I{} \; > compile_flags.txt
	cat build/custom_compile_flags.txt | sed "s;{{PICO_SDK}};$(PICO_SDK_PATH);g" \
		>> compile_flags.txt

usbdebug:
	picotool load -u build/micron.uf2 -f
	while [ ! -e /dev/ttyACM0 ]; do sleep 0.5; done \
		&& picocom -b 115200 --imap lfcrlf /dev/ttyACM0


.PHONY: compile_flags.txt
.SILENT: help