###############################################################################
# Makefile for the project RD20_Free
###############################################################################

## General Flags
PROJECT = RD20_Free
MCU = at90usb1287
TARGET = RD20_Free.elf
CC = avr-gcc.exe

## Options common to compile, link and assembly rules
COMMON = -mmcu=$(MCU)

## Compile options common for all C compilation units.
CFLAGS = $(COMMON)
CFLAGS += -Wall -gdwarf-2  -std=gnu99 -Os -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CFLAGS += -MD -MP -MT $(*F).o -MF dep/$(@F).d 

## Assembly specific flags
ASMFLAGS = $(COMMON)
ASMFLAGS += $(CFLAGS)
ASMFLAGS += -x assembler-with-cpp -Wa,-gdwarf2

## Linker flags
LDFLAGS = $(COMMON)
LDFLAGS +=  -Wl,-Map=RD20_Free.map


## Intel Hex file production flags
HEX_FLASH_FLAGS = -R .eeprom

HEX_EEPROM_FLAGS = -j .eeprom
HEX_EEPROM_FLAGS += --set-section-flags=.eeprom="alloc,load"
HEX_EEPROM_FLAGS += --change-section-lma .eeprom=0 --no-change-warnings


## Objects that must be built in order to link
OBJECTS = usb_task.o controller.o main.o usb_descriptors.o usb_low_level.o usb_specific_request.o usb_standard_request.o eeprom.o audio_task.o tuner_silabs.o hid_task.o rds.o I2C_Bus.o i2c_RD20.o 

## Objects explicitly added by the user
LINKONLYOBJECTS = 

## Build
all: $(TARGET) RD20_Free.hex RD20_Free.eep RD20_Free.lss size

## Compile
i2c_RD20.o: ../i2c_RD20.S
	$(CC) $(INCLUDES) $(ASMFLAGS) -c  $<

usb_task.o: ../usb_task.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

controller.o: ../controller.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

main.o: ../main.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

usb_descriptors.o: ../usb_descriptors.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

usb_low_level.o: ../usb_low_level.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

usb_specific_request.o: ../usb_specific_request.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

usb_standard_request.o: ../usb_standard_request.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

eeprom.o: ../eeprom.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

audio_task.o: ../audio_task.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

tuner_silabs.o: ../tuner_silabs.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

hid_task.o: ../hid_task.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

rds.o: ../rds.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

I2C_Bus.o: ../I2C_Bus.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<

##Link
$(TARGET): $(OBJECTS)
	 $(CC) $(LDFLAGS) $(OBJECTS) $(LINKONLYOBJECTS) $(LIBDIRS) $(LIBS) -o $(TARGET)

%.hex: $(TARGET)
	avr-objcopy -O ihex $(HEX_FLASH_FLAGS)  $< $@

%.eep: $(TARGET)
	-avr-objcopy $(HEX_EEPROM_FLAGS) -O ihex $< $@ || exit 0

%.lss: $(TARGET)
	avr-objdump -h -S $< > $@

size: ${TARGET}
	@echo
	@avr-size -C --mcu=${MCU} ${TARGET}

## Clean target
.PHONY: clean
clean:
	-rm -rf $(OBJECTS) RD20_Free.elf dep/* RD20_Free.hex RD20_Free.eep RD20_Free.lss RD20_Free.map


## Other dependencies
-include $(shell mkdir dep 2>/dev/null) $(wildcard dep/*)