# AVR-GCC Makefile template, derived from the WinAVR template (which
# is public domain), believed to be neutral to any flavor of "make"
# (GNU make, BSD make, SysV make)


MCU = atmega48
FORMAT = ihex
TARGET_CONT = lasersimon_controller
TARGET_BOARD = lasersimon_board
SRC_CONT = controller.c controller_input.c led_driver.c radio.c
SRC_BOARD = simon.c radio.c
ASRC_CONT = 
ASRC_BOARD = 
OPT = s
#OPT = 3

# Name of this Makefile (used for "make depend").
MAKEFILE = Makefile

# Debugging format.
# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
DEBUG = stabs

# Compiler flag to set the C Standard level.
# c89   - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99   - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
CSTANDARD = -std=gnu99

# Place -D or -U options here
CDEFS = -DF_CPU=4000000

# Place -I options here
CINCS =


CDEBUG = -g$(DEBUG)
CWARN = -Wall -Wstrict-prototypes
CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
#CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
CFLAGS = $(CDEBUG) $(CDEFS) $(CINCS) -O$(OPT) $(CWARN) $(CSTANDARD) $(CEXTRA)


#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs 


#Additional libraries.

# Minimalistic printf version
PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min

# Floating point printf version (requires MATH_LIB = -lm below)
PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt

PRINTF_LIB = 

# Minimalistic scanf version
SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min

# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt

SCANF_LIB = 

MATH_LIB = -lm

# External memory options

# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# used for variables (.data/.bss) and heap (malloc()).
#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff

# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# only used for heap (malloc()).
#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff

EXTMEMOPTS =

#LDMAP = $(LDFLAGS) -Wl,-Map=$(TARGET).map,--cref
LDFLAGS = $(EXTMEMOPTS) $(LDMAP) $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)


# Programming support using avrdude. Settings and variables.

AVRDUDE_PROGRAMMER = stk500
AVRDUDE_PORT = /dev/ttyUSB0

AVRDUDE_WRITE_FLASH_CONT = -U flash:w:$(TARGET_CONT).hex
AVRDUDE_WRITE_FLASH_BOARD = -U flash:w:$(TARGET_BOARD).hex
#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep


# Uncomment the following if you want avrdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see avrdude manual.
#AVRDUDE_ERASE_COUNTER = -y

# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
#AVRDUDE_NO_VERIFY = -V

# Increase verbosity level.  Please use this when submitting bug
# reports about avrdude. See  
# to submit bug reports.
AVRDUDE_VERBOSE = -v -v

AVRDUDE_BASIC = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS = $(AVRDUDE_BASIC) $(AVRDUDE_NO_VERIFY) $(AVRDUDE_VERBOSE) $(AVRDUDE_ERASE_COUNTER)


CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
NM = avr-nm
AVRDUDE = avrdude
REMOVE = rm -f
MV = mv -f

# Define all object files.
OBJ_CONT = $(SRC_CONT:.c=.o) $(ASRC_CONT:.S=.o)
OBJ_BOARD = $(SRC_BOARD:.c=.o) $(ASRC_BOARD:.S=.o)

# Define all listing files.
LST_CONT = $(ASRC_CONT:.S=.lst) $(SRC_CONT:.c=.lst)
LST_BOARD = $(ASRC_BOARD:.S=.lst) $(SRC_BOARD:.c=.lst)

# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)


# Default target.
all: build
controller: $(TARGET_CONT).elf $(TARGET_CONT).hex $(TARGET_CONT).elf
board: $(TARGET_BOARD).elf $(TARGET_BOARD).hex $(TARGET_BOARD).elf

build: elf hex eep

elf: $(TARGET_CONT).elf $(TARGET_BOARD).elf
hex: $(TARGET_CONT).hex $(TARGET_BOARD).hex
eep: $(TARGET_CONT).eep $(TARGET_BOARD).eep
lss: $(TARGET_CONT).lss $(TARGET_BOARD).lss
sym: $(TARGET_CONT).sym $(TARGET_BOARD).sym


# Program the device.  
program_controller: $(TARGET_CONT).hex $(TARGET_CONT).eep
	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH_CONT) $(AVRDUDE_WRITE_EEPROM)
program_board: $(TARGET_BOARD).hex $(TARGET_BOARD).eep
	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH_BOARD) $(AVRDUDE_WRITE_EEPROM)




# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
--change-section-address .data-0x800000 \
--change-section-address .bss-0x800000 \
--change-section-address .noinit-0x800000 \
--change-section-address .eeprom-0x810000 


coff: $(TARGET).elf
	$(COFFCONVERT) -O coff-avr $(TARGET).elf $(TARGET).cof


extcoff: $(TARGET).elf
	$(COFFCONVERT) -O coff-ext-avr $(TARGET).elf $(TARGET).cof


.SUFFIXES: .elf .hex .eep .lss .sym

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

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

# Create extended listing file from ELF output file.
.elf.lss:
	$(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.
.elf.sym:
	$(NM) -n $< > $@



# Link: create ELF output file from object files.
$(TARGET_CONT).elf: $(OBJ_CONT)
	$(CC) $(ALL_CFLAGS) $(OBJ_CONT) --output $@ $(LDFLAGS)
$(TARGET_BOARD).elf: $(OBJ_BOARD)
	$(CC) $(ALL_CFLAGS) $(OBJ_BOARD) --output $@ $(LDFLAGS)


# Compile: create object files from C source files.
.c.o:
	$(CC) -c $(ALL_CFLAGS) $< -o $@ 


# Compile: create assembler files from C source files.
.c.s:
	$(CC) -S $(ALL_CFLAGS) $< -o $@


# Assemble: create object files from assembler source files.
.S.o:
	$(CC) -c $(ALL_ASFLAGS) $< -o $@



# Target: clean project.
clean:
	$(REMOVE) $(TARGET_CONT).hex $(TARGET_CONT).eep \
	$(TARGET_CONT).cof $(TARGET_CONT).elf \
	$(TARGET_CONT).map $(TARGET_CONT).sym $(TARGET_CONT).lss \
	$(TARGET_BOARD).hex $(TARGET_BOARD).eep \
	$(TARGET_BOARD).cof $(TARGET_BOARD).elf \
	$(TARGET_BOARD).map $(TARGET_BOARD).sym $(TARGET_BOARD).lss \
	$(OBJ_CONT) $(OBJ_BOARD) $(LST_CONT) $(LST_BOARD) \
	$(SRC_CONT:.c=.s) $(SRC_CONT:.c=.d) \
	$(SRC_BOARD:.c=.s) $(SRC_BOARD:.c=.d)

depend:
	if grep '^# DO NOT DELETE' $(MAKEFILE) >/dev/null; \
	then \
		sed -e '/^# DO NOT DELETE/,$$d' $(MAKEFILE) > \
			$(MAKEFILE).$$$$ && \
		$(MV) $(MAKEFILE).$$$$ $(MAKEFILE); \
	fi
	echo '# DO NOT DELETE THIS LINE -- make depend depends on it.' \
		>> $(MAKEFILE); \
	$(CC) -M -mmcu=$(MCU) $(CDEFS) $(CINCS) $(SRC) $(ASRC) >> $(MAKEFILE)

.PHONY:	all build controller board \
	elf hex eep lss sym \
	program_controller program_board \
	coff extcoff clean depend