# source directories
SRCDIR_MP = vendor/micropython
SRCDIR_FW = embed

# directory containing scripts to be frozen as bytecode
FROZEN_MPY_DIR ?= src

# target directory
PROJECT ?= firmware
BUILD ?= embed/$(PROJECT)/build

# include py core make definitions
include $(SRCDIR_MP)/py/mkenv.mk

MAKE_FROZEN = $(SRCDIR_MP)/tools/make-frozen.py
MPY_CROSS = $(SRCDIR_MP)/mpy-cross/mpy-cross
MPY_TOOL = $(SRCDIR_MP)/tools/mpy-tool.py

# sources
# =====================================

BUILD_MP = $(BUILD)/$(SRCDIR_MP)
BUILD_FW = $(BUILD)/$(SRCDIR_FW)
BUILD_HDR = $(BUILD)/genhdr

MICROPY_PY_TREZORCONFIG = 1
MICROPY_PY_TREZORCRYPTO = 1
MICROPY_PY_TREZORIO = 1
MICROPY_PY_TREZORMSG = 1
MICROPY_PY_TREZORUI = 1
MICROPY_PY_TREZORUTILS = 1
MICROPY_PY_UTIME = 1

# OBJ embed/extmod/modtrezorconfig
ifeq ($(MICROPY_PY_TREZORCONFIG),1)
OBJ_MOD += $(addprefix $(BUILD_FW)/,\
	extmod/modtrezorconfig/modtrezorconfig.o \
	extmod/modtrezorconfig/norcow.o \
	)
endif

# OBJ embed/extmod/modtrezorcrypto
ifeq ($(MICROPY_PY_TREZORCRYPTO),1)
CFLAGS_MOD += \
	-I$(SRCDIR_FW)/extmod/modtrezorcrypto/trezor-crypto \
	-I$(SRCDIR_FW)/extmod/modtrezorcrypto/trezor-crypto/aes \
	-I$(SRCDIR_FW)/extmod/modtrezorcrypto/trezor-crypto/ed25519-donna \
	-DAES_128 \
	-DAES_192 \
	-DUSE_KECCAK=1 \
	-Wno-sequence-point
OBJ_MOD += $(addprefix $(BUILD_FW)/,\
	extmod/modtrezorcrypto/modtrezorcrypto.o \
	extmod/modtrezorcrypto/rand.o \
	extmod/modtrezorcrypto/ssss.o \
	extmod/modtrezorcrypto/trezor-crypto/address.o \
	extmod/modtrezorcrypto/trezor-crypto/aes/aescrypt.o \
	extmod/modtrezorcrypto/trezor-crypto/aes/aeskey.o \
	extmod/modtrezorcrypto/trezor-crypto/aes/aes_modes.o \
	extmod/modtrezorcrypto/trezor-crypto/aes/aestab.o \
	extmod/modtrezorcrypto/trezor-crypto/base58.o \
	extmod/modtrezorcrypto/trezor-crypto/bignum.o \
	extmod/modtrezorcrypto/trezor-crypto/bip32.o \
	extmod/modtrezorcrypto/trezor-crypto/bip39.o \
	extmod/modtrezorcrypto/trezor-crypto/blake2b.o \
	extmod/modtrezorcrypto/trezor-crypto/blake2s.o \
	extmod/modtrezorcrypto/trezor-crypto/curves.o \
	extmod/modtrezorcrypto/trezor-crypto/ecdsa.o \
	extmod/modtrezorcrypto/trezor-crypto/ed25519-donna/ed25519.o \
	extmod/modtrezorcrypto/trezor-crypto/hmac.o \
	extmod/modtrezorcrypto/trezor-crypto/nist256p1.o \
	extmod/modtrezorcrypto/trezor-crypto/pbkdf2.o \
	extmod/modtrezorcrypto/trezor-crypto/ripemd160.o \
	extmod/modtrezorcrypto/trezor-crypto/secp256k1.o \
	extmod/modtrezorcrypto/trezor-crypto/sha2.o \
	extmod/modtrezorcrypto/trezor-crypto/sha3.o \
	)
endif

# OBJ embed/extmod/modtrezorio
ifeq ($(MICROPY_PY_TREZORIO),1)
OBJ_MOD += $(addprefix $(BUILD_FW)/,\
	extmod/modtrezorio/modtrezorio.o \
	)
endif

# OBJ embed/extmod/modtrezormsg
ifeq ($(MICROPY_PY_TREZORMSG),1)
OBJ_MOD += $(addprefix $(BUILD_FW)/,\
	extmod/modtrezormsg/modtrezormsg.o \
	)
endif

# OBJ embed/extmod/modtrezorui
ifeq ($(MICROPY_PY_TREZORUI),1)
CFLAGS_MOD += -DQR_MAX_VERSION=0
OBJ_MOD += $(addprefix $(BUILD_FW)/,\
	extmod/modtrezorui/display.o \
	extmod/modtrezorui/inflate.o \
	extmod/modtrezorui/font_bitmap.o \
	extmod/modtrezorui/font_roboto_bold_20.o \
	extmod/modtrezorui/font_roboto_regular_20.o \
	extmod/modtrezorui/font_robotomono_regular_20.o \
	extmod/modtrezorui/modtrezorui.o \
	extmod/modtrezorui/trezor-qrenc/qr_encode.o \
	)
endif

# OBJ embed/extmod/modtrezorutils
ifeq ($(MICROPY_PY_TREZORUTILS),1)
OBJ_MOD += $(addprefix $(BUILD_FW)/,\
	extmod/modtrezorutils/modtrezorutils.o \
	)
endif

# OBJ embed/extmod/modutime
ifeq ($(MICROPY_PY_UTIME),1)
OBJ_MOD += $(addprefix $(BUILD_FW)/,\
	firmware/modutime.o \
	)
endif

# OBJ vendor/micropython
OBJ_MICROPYTHON += $(addprefix $(BUILD_MP)/,\
	\
	extmod/modubinascii.o \
	extmod/moductypes.o \
	extmod/moduheapq.o \
	extmod/modutimeq.o \
	extmod/moduzlib.o \
	extmod/utime_mphal.o \
	\
	lib/embed/abort_.o \
	lib/libc/string0.o \
	lib/libm/acoshf.o \
	lib/libm/asinfacosf.o \
	lib/libm/asinhf.o \
	lib/libm/atan2f.o \
	lib/libm/atanf.o \
	lib/libm/atanhf.o \
	lib/libm/ef_rem_pio2.o \
	lib/libm/erf_lgamma.o \
	lib/libm/fmodf.o \
	lib/libm/kf_cos.o \
	lib/libm/kf_rem_pio2.o \
	lib/libm/kf_sin.o \
	lib/libm/kf_tan.o \
	lib/libm/log1pf.o \
	lib/libm/math.o \
	lib/libm/nearbyintf.o \
	lib/libm/roundf.o \
	lib/libm/sf_cos.o \
	lib/libm/sf_erf.o \
	lib/libm/sf_frexp.o \
	lib/libm/sf_ldexp.o \
	lib/libm/sf_modf.o \
	lib/libm/sf_sin.o \
	lib/libm/sf_tan.o \
	lib/libm/thumb_vfp_sqrtf.o \
	lib/libm/wf_lgamma.o \
	lib/libm/wf_tgamma.o \
	lib/mp-readline/readline.o \
	lib/utils/interrupt_char.o \
	lib/utils/printf.o \
	lib/utils/pyexec.o \
	lib/utils/stdout_helpers.o \
	\
	py/argcheck.o \
	py/asmarm.o \
	py/asmbase.o \
	py/asmthumb.o \
	py/asmx64.o \
	py/asmx86.o \
	py/asmxtensa.o \
	py/bc.o \
	py/binary.o \
	py/builtinevex.o \
	py/builtinhelp.o \
	py/builtinimport.o \
	py/compile.o \
	py/emitbc.o \
	py/emitcommon.o \
	py/emitglue.o \
	py/emitinlinethumb.o \
	py/emitinlinextensa.o \
	py/formatfloat.o \
	py/frozenmod.o \
	py/gc.o \
	py/lexer.o \
	py/malloc.o \
	py/map.o \
	py/modarray.o \
	py/modbuiltins.o \
	py/modcmath.o \
	py/modcollections.o \
	py/modgc.o \
	py/modio.o \
	py/modmath.o \
	py/modmicropython.o \
	py/modstruct.o \
	py/modsys.o \
	py/modthread.o \
	py/moduerrno.o \
	py/mpprint.o \
	py/mpstate.o \
	py/mpz.o \
	py/nativeglue.o \
	py/nlrsetjmp.o \
	py/nlrthumb.o \
	py/nlrx64.o \
	py/nlrx86.o \
	py/nlrxtensa.o \
	py/obj.o \
	py/objarray.o \
	py/objattrtuple.o \
	py/objbool.o \
	py/objboundmeth.o \
	py/objcell.o \
	py/objclosure.o \
	py/objcomplex.o \
	py/objdict.o \
	py/objenumerate.o \
	py/objexcept.o \
	py/objfilter.o \
	py/objfloat.o \
	py/objfun.o \
	py/objgenerator.o \
	py/objgetitemiter.o \
	py/objint_longlong.o \
	py/objint_mpz.o \
	py/objint.o \
	py/objlist.o \
	py/objmap.o \
	py/objmodule.o \
	py/objnamedtuple.o \
	py/objnone.o \
	py/objobject.o \
	py/objpolyiter.o \
	py/objproperty.o \
	py/objrange.o \
	py/objreversed.o \
	py/objset.o \
	py/objsingleton.o \
	py/objslice.o \
	py/objstr.o \
	py/objstringio.o \
	py/objstrunicode.o \
	py/objtuple.o \
	py/objtype.o \
	py/objzip.o \
	py/opmethods.o \
	py/parse.o \
	py/parsenum.o \
	py/parsenumbase.o \
	py/persistentcode.o \
	py/qstr.o \
	py/reader.o \
	py/repl.o \
	py/runtime_utils.o \
	py/runtime.o \
	py/scope.o \
	py/sequence.o \
	py/showbc.o \
	py/smallint.o \
	py/stackctrl.o \
	py/stream.o \
	py/unicode.o \
	py/vm.o \
	py/vstr.o \
	py/warning.o \
	\
	stmhal/gccollect.o \
	stmhal/gchelper.o \
	stmhal/pendsv.o \
	stmhal/startup_stm32.o \
	stmhal/systick.o \
	)

# OBJ vendor/micropython
OBJ_STMHAL += $(addprefix $(BUILD_MP)/,\
	stmhal/hal/f4/src/stm32f4xx_hal_adc_ex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_adc.o \
	stmhal/hal/f4/src/stm32f4xx_hal_can.o \
	stmhal/hal/f4/src/stm32f4xx_hal_cortex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_dac_ex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_dac.o \
	stmhal/hal/f4/src/stm32f4xx_hal_dma.o \
	stmhal/hal/f4/src/stm32f4xx_hal_flash_ex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_flash.o \
	stmhal/hal/f4/src/stm32f4xx_hal_gpio.o \
	stmhal/hal/f4/src/stm32f4xx_hal_i2c.o \
	stmhal/hal/f4/src/stm32f4xx_hal_pcd_ex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_pcd.o \
	stmhal/hal/f4/src/stm32f4xx_hal_pwr_ex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_pwr.o \
	stmhal/hal/f4/src/stm32f4xx_hal_rcc_ex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_rcc.o \
	stmhal/hal/f4/src/stm32f4xx_hal_rng.o \
	stmhal/hal/f4/src/stm32f4xx_hal_rtc_ex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_rtc.o \
	stmhal/hal/f4/src/stm32f4xx_hal_sd.o \
	stmhal/hal/f4/src/stm32f4xx_hal_spi.o \
	stmhal/hal/f4/src/stm32f4xx_hal_tim_ex.o \
	stmhal/hal/f4/src/stm32f4xx_hal_tim.o \
	stmhal/hal/f4/src/stm32f4xx_hal_uart.o \
	stmhal/hal/f4/src/stm32f4xx_hal.o \
	stmhal/hal/f4/src/stm32f4xx_ll_sdmmc.o \
	stmhal/hal/f4/src/stm32f4xx_ll_usb.o \
	)

# OBJ embed/
OBJ_FIRMWARE += $(addprefix $(BUILD_FW)/, \
	firmware/vendorheader.o \
	firmware/header.o \
	firmware/main.o \
	firmware/mphalport.o \
	)

OBJ_TREZORHAL += $(addprefix $(BUILD_FW)/, \
	trezorhal/common.o \
	trezorhal/flash.o \
	trezorhal/mini_printf.o \
	trezorhal/rng.o \
	trezorhal/sdcard.o \
	trezorhal/stm32_it.o \
	trezorhal/stm32_system.o \
	trezorhal/touch.o \
	trezorhal/usb.o \
	trezorhal/usbd_conf.o \
	trezorhal/usbd_core.o \
	trezorhal/usbd_ctlreq.o \
	trezorhal/usbd_ioreq.o \
	trezorhal/hal/stm32f4xx_hal_sram.o \
	trezorhal/hal/stm32f4xx_ll_fsmc.o \
	)

# make a list of all the .py files that need compiling and freezing
FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR) -type f -name '*.py' | $(SED) -e 's=^$(FROZEN_MPY_DIR)/==')
FROZEN_MPY_MPY_FILES := $(addprefix $(BUILD)/frozen_mpy/,$(FROZEN_MPY_PY_FILES:.py=.mpy))

OBJ = $(OBJ_MICROPYTHON) $(OBJ_STMHAL) $(OBJ_TREZORHAL)
OBJ += $(OBJ_MOD)
OBJ += $(OBJ_FIRMWARE)
OBJ += $(BUILD)/frozen_mpy.o
SRC_MP = $(patsubst $(BUILD_MP)%.o, $(SRCDIR_MP)%.c, $(OBJ_MICROPYTHON))
SRC_MOD = $(patsubst $(BUILD_FW)%.o, $(SRCDIR_FW)%.c, $(OBJ_MOD))

# comp flags
# =====================================

CROSS_COMPILE = arm-none-eabi-

INC += -I.
INC += -I$(SRCDIR_FW)/$(PROJECT)
INC += -I$(SRCDIR_FW)/extmod/modtrezorui
INC += -I$(SRCDIR_FW)/trezorhal
INC += -I$(SRCDIR_FW)/trezorhal/hal
INC += -I$(SRCDIR_MP)
INC += -I$(SRCDIR_MP)/stmhal
INC += -I$(SRCDIR_MP)/stmhal/cmsis
INC += -I$(SRCDIR_MP)/stmhal/hal/f4/inc
INC += -I$(SRCDIR_MP)/lib/cmsis/inc
INC += -I$(BUILD)

ifeq ($(DEBUG), 1)
CFLAGS += -Os -g3
else
CFLAGS += -Os -DNDEBUG
endif

CFLAGS += $(INC) $(CFLAGS_MOD) $(CFLAGS_EXTRA)
CFLAGS += -std=gnu99 -nostdlib -Wall -Werror -Wdouble-promotion -Wpointer-arith
CFLAGS += -mthumb -mtune=cortex-m4 -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard -fsingle-precision-constant
CFLAGS += -DSTM32F405xx -DMCU_SERIES_F4
CFLAGS += -DSTM32_HAL_H='<stm32f4xx_hal.h>'
CFLAGS += -DTREZOR_STM32

CFLAGS += -DMICROPY_QSTR_EXTRA_POOL=mp_qstr_frozen_const_pool
CFLAGS += -DMICROPY_MODULE_FROZEN_MPY

LIBS = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)

LDFLAGS = -nostdlib -T $(SRCDIR_FW)/$(PROJECT)/memory.ld -Map=$@.map --cref

# remove uncalled code from the final image
CFLAGS += -fdata-sections -ffunction-sections
LDFLAGS += --gc-sections

# QSTR file locations
QSTR_DEFS = $(SRCDIR_MP)/py/qstrdefs.h
QSTR_DEFS_COLLECTED = $(BUILD_HDR)/qstrdefs.collected.h

# SRC files for QSTR extraction
SRC_QSTR_IGNORE = $(addprefix $(SRCDIR_MP)/py/, \
	nlr% emitnx86% emitnx64% emitnthumb% emitnarm% emitnxtensa%)
SRC_QSTR += $(SRC_MOD)
SRC_QSTR += $(filter $(SRCDIR_MP)/lib/%,$(SRC_MP))
SRC_QSTR += $(filter $(SRCDIR_MP)/extmod/%,$(SRC_MP))
# SRC_QSTR += $(filter $(SRCDIR_MP)/stmhal/%,$(filter-out %/gchelper.o,$(SRC_MP)))
SRC_QSTR += $(filter-out $(SRC_QSTR_IGNORE),$(filter $(SRCDIR_MP)/py/%,$(SRC_MP)))

# extra cpp CFLAGS for QSTR extraction
QSTR_GEN_EXTRA_CFLAGS += -DNO_QSTR -DN_X64 -DN_X86 -DN_THUMB -DN_ARM -DN_XTENSA

# comp rules
# =====================================

all: $(BUILD)/$(PROJECT).bin

$(BUILD_FW)/firmware/vendorheader.o: $(SRCDIR_FW)/firmware/vendorheader.bin
	$(Q)$(OBJCOPY) -I binary -O elf32-littlearm -B arm \
	  --rename-section .data=.vendorheader,alloc,load,readonly,contents \
	  $< $@

$(BUILD)/$(PROJECT).elf: $(OBJ)
	$(ECHO) "LINK $@"
	$(Q)$(LD) $(LDFLAGS) -o $@ $^ $(LIBS)
	$(Q)$(SIZE) $@

$(BUILD)/$(PROJECT).bin: $(BUILD)/$(PROJECT).elf
	$(Q)$(OBJCOPY) -O binary -j .header -j .flash -j .data $^ $(BUILD)/$(PROJECT).bin

$(BUILD)/%.o: %.S
	$(ECHO) "CC $<"
	$(Q)$(CC) $(CFLAGS) -c -o $@ $<

$(BUILD)/%.o: %.s
	$(ECHO) "AS $<"
	$(Q)$(AS) -o $@ $<

$(BUILD)/%.o: %.c
	$(ECHO) "CC $<"
	$(Q)$(CC) $(CFLAGS) -c -MD -o $@ $<

OBJ_DIRS = $(sort $(dir $(OBJ)))
$(OBJ): | $(OBJ_DIRS)
$(OBJ_DIRS) $(BUILD_HDR):
	$(MKDIR) -p $@

$(OBJ): | $(BUILD_HDR)/qstrdefs.generated.h $(BUILD_HDR)/mpversion.h

$(BUILD_HDR)/qstr.i.last: $(SRC_QSTR) | $(BUILD_HDR)/mpversion.h
	$(ECHO) "GEN $@"
	$(Q)$(CPP) $(QSTR_GEN_EXTRA_CFLAGS) $(CFLAGS) $^ >$(BUILD_HDR)/qstr.i.last; \

$(BUILD_HDR)/qstr.split: $(BUILD_HDR)/qstr.i.last
	$(ECHO) "GEN $@"
	$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py split $(BUILD_HDR)/qstr.i.last $(BUILD_HDR)/qstr $(QSTR_DEFS_COLLECTED)
	$(Q)touch $@

$(QSTR_DEFS_COLLECTED): $(BUILD_HDR)/qstr.split
	$(ECHO) "GEN $@"
	$(Q)$(PYTHON) $(PY_SRC)/makeqstrdefs.py cat $(BUILD_HDR)/qstr.i.last $(BUILD_HDR)/qstr $(QSTR_DEFS_COLLECTED)

$(BUILD_HDR)/qstrdefs.generated.h: $(QSTR_DEFS) $(QSTR_DEFS_COLLECTED) $(SRCDIR_FW)/firmware/mpconfigport.h | $(BUILD_HDR)
	$(ECHO) "GEN $@"
	$(Q)cat $(QSTR_DEFS) $(QSTR_DEFS_COLLECTED) \
		| $(SED) 's/^Q(.*)/"&"/' \
		| $(CPP) $(CFLAGS) - \
		| $(SED) 's/^"\(Q(.*)\)"/\1/' \
		> $(BUILD_HDR)/qstrdefs.preprocessed.h
	$(Q)$(PYTHON) $(PY_SRC)/makeqstrdata.py $(BUILD_HDR)/qstrdefs.preprocessed.h > $@

$(BUILD_HDR)/mpversion.h: | $(BUILD_HDR)
	$(Q)$(PYTHON) $(PY_SRC)/makeversionhdr.py $@

$(BUILD)/frozen_mpy/%.mpy: $(FROZEN_MPY_DIR)/%.py
	@$(ECHO) "MPY $<"
	$(Q)$(MKDIR) -p $(dir $@)
	$(Q)$(MPY_CROSS) -o $@ -s $(^:$(FROZEN_MPY_DIR)/%=%) $^

$(BUILD)/frozen_mpy.c: $(FROZEN_MPY_MPY_FILES) $(BUILD)/genhdr/qstrdefs.generated.h
	@$(ECHO) "Creating $@"
	$(Q)PYTHONPATH=$(SRCDIR_MP)/py $(PYTHON) $(MPY_TOOL) -f -q $(BUILD)/genhdr/qstrdefs.preprocessed.h $(FROZEN_MPY_MPY_FILES) > $@

clean:
	$(RM) -rf $(BUILD)

.PHONY: all clean