PROGRAM=firmware
SRC=firmware.c rs485.c
OBJ=$(SRC:.c=.o)


MCU=atmega328p
# AVRDUDE_MCU=$(MCU)
AVRDUDE_MCU=atmega328p
AVRDUDE_PROGRAMMER=arduino

CFLAGS=-Wall -Os -mmcu=$(MCU) -DUSE_LOGGING=1 -DF_CPU=16000000UL -std=gnu99
LDFLAGS=
AVRDUDE_FLAGS= -p$(AVRDUDE_MCU) -c $(AVRDUDE_PROGRAMMER) -P /dev/ttyUSB0 -b 57600

FORMAT=ihex

CC=avr-gcc
OBJCOPY=avr-objcopy
OBJDUMP=avr-objdump
AVRDUDE=avrdude

WEB_DIR=/home/kas/html/board/
WEB_FILES=pcb-back.png pcb-front.png schematics.png handlebar.png
GERBER_FILES=\
	board.top.gbr \
	board.bottom.gbr \
	board.topmask.gbr \
	board.bottommask.gbr \
	board.topsilk.gbr \
	board.bottomsilk.gbr \
	board.outline.gbr \
	board.plated-drill.cnc

all: $(PROGRAM).hex $(PROGRAM).eep

clean:
	rm -f board.cmd board.jpg board.net board.new.pcb board.pcb- \
		board.png board.ps board.sch~ pcb-back.png pcb-front.png \
		schematics.png *.gbr *.cnc \
		$(PROGRAM).hex $(PROGRAM).eep $(PROGRAM).elf *.o *.s \
		eeprom.raw version.c

web: $(WEB_FILES)
	test -d $(WEB_DIR) && install -m 644 $(WEB_FILES) $(WEB_DIR)

board.pcb: board.sch board.prj
	gsch2pcb board.prj

pcb-front.png: board.pcb
	pcb -x png --dpi 150 --photo-mode board.pcb \
		&& mv board.png $@

pcb-back.png: board.pcb
	pcb -x png --dpi 150 --photo-mode --photo-flip-x board.pcb \
		&& mv board.png $@

schematics.png: board.sch
	gschem -s image.scm board.sch -o schematics.png

handlebar-big.png: handlebar.sch
	gschem -s image.scm handlebar.sch -o handlebar-big.png

handlebar.png: handlebar-big.png
	convert -crop 450x300+320+170 handlebar-big.png handlebar.png

gerber: $(GERBER_FILES)

$(GERBER_FILES): board.pcb
	pcb -x gerber board.pcb

fab: $(GERBER_FILES)
	@sh -c 'D=board-`date +\%Y\%m\%d-\%H\%M` && mkdir $$D && \
		cp board.top.gbr $$D/board.gtl && \
		cp board.bottom.gbr $$D/board.gbl && \
		cp board.topmask.gbr $$D/board.gts && \
		cp board.bottommask.gbr $$D/board.gbs && \
		cp board.topsilk.gbr $$D/board.gto && \
		cp board.bottomsilk.gbr $$D/board.gbo && \
		cp board.outline.gbr $$D/board.gko && \
		cp board.plated-drill.cnc $$D/board.txt && \
		zip -r $$D.zip $$D && \
		echo "Done. Output in $$D.zip."; \
		echo "You may also want to do git tag gerber-fab-$$D" '

.PHONY: gerber

program: $(PROGRAM).hex $(PROGRAM).eep
	$(AVRDUDE) $(AVRDUDE_FLAGS) -U flash:w:$(PROGRAM).hex:i -U eeprom:w:$(PROGRAM).eep:i

program_flash: $(PROGRAM).hex
	$(AVRDUDE) $(AVRDUDE_FLAGS) -U flash:w:$(PROGRAM).hex:i

program_eeprom: $(PROGRAM).eep
	$(AVRDUDE) $(AVRDUDE_FLAGS) eeprom:w:$(PROGRAM).eep:i

dump_eeprom:
	$(AVRDUDE) $(AVRDUDE_FLAGS) -U eeprom:r:eeprom.raw:r
	od -tx1 eeprom.raw

objdump: $(PROGRAM).elf
	$(OBJDUMP) --disassemble $<

.PRECIOUS : $(OBJ) $(PROGRAM).elf

%.hex: %.elf
	$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

%.eep: %.elf
	$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
		--change-section-lma .eeprom=0 -O $(FORMAT) $< $@

%.elf: $(OBJ)
	$(CC) $(CFLAGS) $(OBJ) -o $@ $(LDFLAGS)

%.o: %.c lights.h Makefile
	$(CC) -c $(CFLAGS) $< -o $@

%.s: %.c lights.h Makefile
	$(CC) -S -c $(CFLAGS) $< -o $@

%.o: %.S
	$(CC) -c $(CFLAGS) $< -o $@

clean:

version.c:
	./version.pl > version.c

.PHONY: all clean dump_eeprom program program_flash program_eeprom objdump \
	version.c