PODMAN_RUN=podman run --mount=type=bind,source=.,target=/root/code
PODMAN_IMAGE=localhost/fmn-toolchain
PODMAN=$(PODMAN_RUN) $(PODMAN_IMAGE)
BUILD=build

create-image:
	podman build -t fmn-toolchain .

run:
	podman run --rm localhost/fmn-toolchain

CONSTRAINTS=example/adder.xdc
SYSTEM_VERILOG=$(shell find example -name "*.sv")
VERILOG=$(shell find example -name "*.v")
SOURCES=$(patsubst %,$(BUILD)/%,$(VERILOG)) $(patsubst %.sv,$(BUILD)/%.v,$(SYSTEM_VERILOG))

$(BUILD):
	mkdir -p $(BUILD)

$(BUILD)/%.v: %.sv
	mkdir -p $(dir $@)
	$(PODMAN) sv2v $^ -w $@

$(BUILD)/%.v: %.v
	mkdir -p $(dir $@)
	cp $^ $@

$(BUILD)/synthesis.json: $(SOURCES)
	$(PODMAN) yosys $^ -p "synth_xilinx; write_json $@"

$(BUILD)/out.fasm: $(BUILD)/synthesis.json
	$(PODMAN) nextpnr-himbaechel --json $(filter %.json,$^) -o xdc=$(CONSTRAINTS) -o fasm=$@ --device xc7z010clg400-1

$(BUILD)/out.frames: $(BUILD)/out.fasm
	$(PODMAN) fasm2frames --part xc7z010clg400-1 --db-root /usr/share/xray/database/zynq7 $^ $@

$(BUILD)/out.bin: $(BUILD)/out.frames
	$(PODMAN) xc7frames2bit -frm_file $^ -part_file /usr/share/xray/database/zynq7/xc7z010clg400-1/part.yaml --output_file $@

bitstream: $(BUILD) $(BUILD)/out.bin

flash: bitstream
	$(eval USB = $(shell lsusb -d 0403:6010 | sed -E "s/Bus ([0-9]{3}) Device ([0-9]{3}).*/\/dev\/bus\/usb\/\1\/\2/g"))
	@if [ "$(USB)" = "" ]; then \
		echo "No USB device found !"; \
	else \
		$(PODMAN_RUN) --device=$(USB) \
			$(PODMAN_IMAGE) openFPGALoader -b zybo_z7_10 $(BUILD)/out.bin; \
	fi