# ############################

PRG        = rgb16mpm
MCU_TARGET = atmega32

# ############################

BUILD_DIR = build
SRC       = $(wildcard *.c)
OUTPUTS   = .hex .bin _eeprom.hex _eeprom.bin

CFLAGS  = -Os -g -Wall -mmcu=$(MCU_TARGET)
CFLAGS += -pipe -MMD -MP -MF $(BUILD_DIR)/$(*D)/$(*F).d
LDFLAGS = -Wl,-Map,$(BUILD_DIR)/$(*D)/$(*F).map,--cref

CC      = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE    = avr-size

# ############################

.PHONY: all clean install
all: $(patsubst %,$(BUILD_DIR)/$(PRG)%, .elf $(OUTPUTS))
	@$(SIZE) -x -A $<

.SECONDARY: $(patsubst %,$(BUILD_DIR)/%, $(SRC:.c=.o))
$(BUILD_DIR)/%.elf: $(patsubst %,$(BUILD_DIR)/%, $(SRC:.c=.o))
	@echo " Linking file:  $@"
	@$(CC) $(CFLAGS) $(LDFLAGS) $^ -o $@
	@$(OBJDUMP) -h -S $@ > $(subst elf,lst,$@)

$(BUILD_DIR)/%.o: %.c $(MAKEFILE_LIST)
	@echo " Building file: $<"
	@$(shell test -d $(BUILD_DIR)/$(*D) || mkdir -p $(BUILD_DIR)/$(*D))
	@$(CC) $(CFLAGS) -o $@ -c $<

$(BUILD_DIR)/%.hex: $(BUILD_DIR)/%.elf
	@$(OBJCOPY) -j .text -j .data -O ihex $< $@

$(BUILD_DIR)/%.bin: $(BUILD_DIR)/%.elf
	@$(OBJCOPY) -j .text -j .data -O binary $< $@

$(BUILD_DIR)/%_eeprom.hex: $(BUILD_DIR)/%.elf
	@$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@

$(BUILD_DIR)/%_eeprom.bin: $(BUILD_DIR)/%.elf
	@$(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O binary $< $@

include $(shell find $(BUILD_DIR) -name \*.d 2> /dev/null)

# ############################

clean:
	rm -rf $(BUILD_DIR)

install: $(BUILD_DIR)/$(PRG).hex
#	avrdude -p m32 -c dragon_isp -P usb -U flash:w:$(PRG).hex
	mpmboot -d /dev/ttyUSB0 -a 0x11 -w flash:$<