SUPPORTED_TOOLCHAIN_COMMIT_DESC := 1.22.0-92-g8facf4c
SUPPORTED_TOOLCHAIN_GCC_VERSIONS := 5.2.0

ifdef CONFIG_ESP8266_LEGACY

BOOTLOADER_FIRMWARE_DIR := $(abspath $(COMPONENT_PATH))/firmware

ESPTOOLPY_FLASHSIZE ?= $(CONFIG_ESPTOOLPY_FLASHSIZE)

ifeq ($(ESPTOOLPY_FLASHSIZE), "2MB")
ESP_INIT_DATA_DEFAULT_BIN_OFFSET := 0x1FC000
endif

ifeq ($(ESPTOOLPY_FLASHSIZE), "4MB")
ESP_INIT_DATA_DEFAULT_BIN_OFFSET := 0x3FC000
endif

ifeq ($(ESPTOOLPY_FLASHSIZE), "8MB")
ESP_INIT_DATA_DEFAULT_BIN_OFFSET := 0x7FC000
endif

ifeq ($(ESPTOOLPY_FLASHSIZE), "16MB")
ESP_INIT_DATA_DEFAULT_BIN_OFFSET := 0xFFC000
endif

ESP_INIT_DATA_DEFAULT_BIN := $(BOOTLOADER_FIRMWARE_DIR)/esp_init_data_default.bin

ESPTOOL_ALL_FLASH_ARGS += $(ESP_INIT_DATA_DEFAULT_BIN_OFFSET) $(ESP_INIT_DATA_DEFAULT_BIN)

else

ifdef CONFIG_ESP_PHY_INIT_DATA_IN_PARTITION

PHY_INIT_DATA_OBJ = $(BUILD_DIR_BASE)/phy_init_data.o
PHY_INIT_DATA_BIN = $(BUILD_DIR_BASE)/phy_init_data.bin

# Command to flash PHY init data partition
PHY_INIT_DATA_FLASH_CMD = $(ESPTOOLPY_SERIAL) write_flash $(CONFIG_PHY_DATA_OFFSET) $(PHY_INIT_DATA_BIN)
ESPTOOL_ALL_FLASH_ARGS += $(CONFIG_PHY_DATA_OFFSET) $(PHY_INIT_DATA_BIN)

ESP8266_COMPONENT_PATH := $(COMPONENT_PATH)

$(PHY_INIT_DATA_OBJ): $(ESP8266_COMPONENT_PATH)/source/phy_init_data.h $(BUILD_DIR_BASE)/include/sdkconfig.h
	$(summary) CC $(notdir $@)
	printf "#include \"source/phy_init_data.h\"\n" | $(CC) -I $(BUILD_DIR_BASE)/include -I $(ESP8266_COMPONENT_PATH) -I $(ESP8266_COMPONENT_PATH)/include -c -o $@ -xc -

$(PHY_INIT_DATA_BIN): $(PHY_INIT_DATA_OBJ)
	$(summary) BIN $(notdir $@)
	$(OBJCOPY) -O binary $< $@

phy_init_data: $(PHY_INIT_DATA_BIN)

phy_init_data-flash: $(BUILD_DIR_BASE)/phy_init_data.bin
	@echo "Flashing PHY init data..."
	$(PHY_INIT_DATA_FLASH_CMD)

phy_init_data-clean:
	rm -f $(PHY_INIT_DATA_BIN) $(PHY_INIT_DATA_OBJ)

all: phy_init_data
flash: phy_init_data

endif # CONFIG_ESP_PHY_INIT_DATA_IN_PARTITION

endif

# global CFLAGS for ESP8266
CFLAGS += -DICACHE_FLASH

ifdef CONFIG_ESP_FILENAME_MACRO_NO_PATH
CFLAGS += -D__ESP_FILE__='"$$(subst $$(dir $$<),,$$<)"'
CXXFLAGS +=  -D__ESP_FILE__='"$$(subst $$(dir $$<),,$$<)"'
endif

ifdef CONFIG_ESP_FILENAME_MACRO_RAW
CFLAGS += -D__ESP_FILE__=__FILE__
CXXFLAGS += -D__ESP_FILE__=__FILE__
endif

ifdef CONFIG_ESP_FILENAME_MACRO_NULL
CFLAGS += -D__ESP_FILE__='"null"'
CXXFLAGS += -D__ESP_FILE__='"null"'
endif

.PHONY: ota ota-clean

RAW_BIN := ./build/$(PROJECT_NAME).bin
OTA_BIN := ./build/$(PROJECT_NAME).ota.bin
OTA1_BIN := ./build/$(PROJECT_NAME).app1.bin
OTA2_BIN := ./build/$(PROJECT_NAME).app2.bin

OTA_V2_TO_V3_BIN  := ./build/$(PROJECT_NAME).v2_to_v3.ota.bin

ifndef CONFIG_APP2_OFFSET
CONFIG_APP2_OFFSET := $(CONFIG_APP1_OFFSET)
endif

ifndef CONFIG_APP2_SIZE
CONFIG_APP2_SIZE := $(CONFIG_APP1_SIZE)
endif

OTA1_OFFSET := $(CONFIG_APP1_OFFSET)
ifdef CONFIG_ESP8266_BOOT_COPY_APP
OTA2_LINK_OFFSET := $(CONFIG_APP1_OFFSET)
else
OTA2_LINK_OFFSET := $(CONFIG_APP2_OFFSET)
endif

$(OTA2_BIN): all_binaries
ifneq ($(OTA1_OFFSET), $(OTA2_LINK_OFFSET))
	@rm -f ./build/esp8266/esp8266_out.ld
	@make APP_OFFSET=$(OTA2_LINK_OFFSET) APP_SIZE=$(CONFIG_APP2_SIZE) CFLAGS= CXXFLAGS=
endif
	@cp $(RAW_BIN) $(OTA2_BIN)
	@echo [GEN] $(OTA2_BIN)

$(OTA1_BIN): all_binaries
ifneq ($(OTA1_OFFSET), $(OTA2_LINK_OFFSET))
	@rm -f ./build/esp8266/esp8266_out.ld
endif
	@make APP_OFFSET=$(OTA1_OFFSET) APP_SIZE=$(CONFIG_APP1_SIZE) CFLAGS= CXXFLAGS=
	@cp $(RAW_BIN) $(OTA1_BIN)
	@echo [GEN] $(OTA1_BIN)

$(OTA_BIN): $(OTA1_BIN) $(OTA2_BIN)
	@cp $(OTA1_BIN) $(OTA_BIN)
ifneq ($(OTA1_OFFSET), $(OTA2_LINK_OFFSET))
	@cat $(OTA2_BIN) >> $(OTA_BIN)
endif
	@cp $(OTA1_BIN) $(RAW_BIN)
	@echo [GEN] $(OTA_BIN)

ifdef CONFIG_ESP8266_OTA_FROM_OLD
$(OTA_V2_TO_V3_BIN): $(OTA_BIN)
	@cp $(RAW_BIN) $(RAW_BIN).tmp.bak
	@cp $(OTA1_BIN) $(RAW_BIN)
	@python $(IDF_PATH)/tools/pack_fw.py --output $(OTA_V2_TO_V3_BIN) pack3 $(ESPTOOL_ALL_FLASH_ARGS)
	@cp $(RAW_BIN).tmp.bak $(RAW_BIN)
	@echo [GEN] $(OTA_V2_TO_V3_BIN)
endif

ifdef CONFIG_ESP8266_OTA_FROM_OLD
ota: $(OTA_V2_TO_V3_BIN)
else
ota: $(OTA_BIN)
endif

ota-clean:
	@rm -f $(OTA_BIN) $(OTA1_BIN) $(OTA2_BIN) $(OTA_V2_TO_V3_BIN)

clean: ota-clean