#BASE ?= /opt/arm-none-eabi/bin/arm-none-eabi
BASE ?= arm-none-eabi

CC      = $(BASE)-gcc
LD      = $(BASE)-gcc
AS      = $(BASE)-as
CP      = $(BASE)-objcopy
DUMP    = $(BASE)-objdump

TODAY = `date +"%m/%d/%y"`

PRJ = firmware
SRC = hw/AT91SAM/Cstartup_SAM7.c hw/AT91SAM/hardware.c hw/AT91SAM/spi.c hw/AT91SAM/mmc.c hw/AT91SAM/at91sam_usb.c hw/AT91SAM/usbdev.c
SRC += fdd.c  firmware.c  fpga.c hdd.c  main.c  menu.c menu-minimig.c menu-8bit.c osd.c state.c syscalls.c user_io.c settings.c data_io.c boot.c idxfile.c config.c tos.c ikbd.c xmodem.c ini_parser.c cue_parser.c mist_cfg.c archie.c pcecd.c neocd.c snes.c zx_col.c arc_file.c c64files.c font.c utils.c
SRC += usb/usb.c usb/max3421e.c usb/usb-max3421e.c usb/usbdebug.c usb/hub.c usb/hid.c usb/hidparser.c usb/xboxusb.c usb/timer.c usb/asix.c usb/pl2303.c usb/usbrtc.c usb/storage.c usb/joymapping.c usb/joystick.c
SRC += fat_compat.c
SRC += FatFs/diskio.c FatFs/ff.c FatFs/ffunicode.c
# SRC += usb/storage.c
SRC += cdc_control.c storage_control.c

OBJ = $(SRC:.c=.o)
DEP = $(SRC:.c=.d)

LINKMAP  = hw/AT91SAM/AT91SAM7S256-ROM.ld
LIBDIR   = 

# Commandline options for each tool.
# for ESA11 add -DEMIST
DFLAGS  = -I. -Iusb -Iarch/ -Ihw/AT91SAM -DMIST -DCONFIG_ARCH_ARMV4TE -DCONFIG_ARCH_ARM -DUSB_STORAGE
CFLAGS  = $(DFLAGS) -c -march=armv4t -mtune=arm7tdmi -mthumb -fno-common -O2 --std=gnu99 -fsigned-char -DVDATE=\"`date +"%y%m%d"`\"
CFLAGS-firmware.o += -marm
CFLAGS += $(CFLAGS-$@)
AFLAGS  = -ahls -mapcs-32
LFLAGS  = -mthumb -nostartfiles -Wl,-Map,$(PRJ).map -T$(LINKMAP) $(LIBDIR)
CPFLAGS = --output-target=ihex

MKUPG = mkupg

# Libraries.
LIBS       =

# Our target.
all: $(PRJ).hex $(PRJ).upg

clean:
	rm -f *.d *.o *.hex *.elf *.map *.lst core *~ */*.d */*.o */*/*.d */*/*.o $(MKUPG) *.bin *.upg *.exe

INTERFACE=interface/ftdi/olimex-arm-usb-tiny-h.cfg
#INTERFACE=interface/busblaster.cfg
#INTERFACE=openocd/interface/esa11-ft4232-generic.cfg
ADAPTER_KHZ=10000

reset:
	openocd -f $(INTERFACE) -f target/at91sam7sx.cfg --command "adapter speed $(ADAPTER_KHZ); init; reset init; resume; shutdown"

$(MKUPG): $(MKUPG).c
	gcc  -o $@ $<

debug: $(PRJ).hex $(PRJ).upg $(PRJ).bin
	openocd -f $(INTERFACE) -f target/at91sam7sx.cfg --command 'adapter speed $(ADAPTER_KHZ); init; reset init; resume; \
	echo "*********************"; echo "Start GDB debug session with:"; echo "> gdb $(PRJ).elf"; echo "(gdb) target ext:3333"; echo "*********************"'

flash: $(PRJ).hex $(PRJ).upg $(PRJ).bin
	openocd -f $(INTERFACE) -f target/at91sam7sx.cfg --command "adapter speed $(ADAPTER_KHZ); init; reset init;  flash protect 0 0 7 off; sleep 1; arm7_9 fast_memory_access enable; flash write_bank 0 $(PRJ).bin 0x0; resume; shutdown"

flash_sam: $(PRJ).hex
	Sam_I_Am -x flash_sam_i_am

# Convert ELF binary to bin file.
$(PRJ).bin: $(PRJ).elf
	$(CP) -O binary $< $@

# Convert ELF binary to Intel HEX file.
$(PRJ).hex: $(PRJ).elf
	$(CP) $(CPFLAGS) $< $@

# Link - this produces an ELF binary.
$(PRJ).elf: crt.o $(OBJ)
	$(LD) $(LFLAGS) -o $@ $+ $(LIBS)

$(PRJ).upg: $(PRJ).bin $(MKUPG)
	./$(MKUPG) $< $@ `date +"%y%m%d"`

# Compile the C runtime.
crt.o: hw/AT91SAM/Cstartup.S
	$(AS) $(AFLAGS) -o $@ $< > crt.lst

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

# Automatic dependencies
-include $(DEP)
%.d: %.c
	$(CC) $(DFLAGS) -MM $< -MT $@ -MT $*.o -MF $@

# Ensure correct time stamp
main.o: $(filter-out main.o, $(OBJ))

sections: $(PRJ).elf
	$(DUMP) --section-headers $<

release:
	make $(PRJ).hex $(PRJ).bin $(PRJ).upg
	cp $(PRJ).hex $(PRJ).bin $(PRJ).upg ../bin/firmware