SUPPORTED_TOOLCHAIN_COMMIT_DESC := 1.22.0-100-ge567ec7
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 $(PHY_DATA_OFFSET) $(PHY_INIT_DATA_BIN)
ESPTOOL_ALL_FLASH_ARGS += $(PHY_DATA_OFFSET) $(PHY_INIT_DATA_BIN)

ESP8266_COMPONENT_PATH := $(COMPONENT_PATH)

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

ifndef IS_BOOTLOADER_BUILD
LINKER_SCRIPT_TEMPLATE := $(COMPONENT_PATH)/ld/esp8266.project.ld.in
LINKER_SCRIPT_OUTPUT_DIR := $(abspath $(BUILD_DIR_BASE)/esp8266)

# Target to generate linker script generator from fragments presented by each of
# the components
$(eval $(call ldgen_process_template,$(LINKER_SCRIPT_TEMPLATE),$(LINKER_SCRIPT_OUTPUT_DIR)/esp8266.project.ld))
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 app2 app2-flash app2-flash-all

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_ESP8266_BOOT_COPY_APP
ifdef CONFIG_ESPTOOLPY_FLASHSIZE_1MB
__COMBILE_OTA_BIN := 1
endif
endif

app2: all
ifdef CONFIG_ESPTOOLPY_FLASHSIZE_1MB
	@rm -f ./build/esp8266/esp8266_out.ld
	@export CFLAGS= && export CXXFLAGS= && make APP_OFFSET=$(APP2_OFFSET) APP_SIZE=$(APP2_SIZE)
endif
	@echo "To flash all build output, run 'make flash' or:"
	@echo $(ESPTOOLPY_WRITE_FLASH) $(APP2_OFFSET) $(APP_BIN)

app2-flash: app2
	@$(ESPTOOLPY_WRITE_FLASH) $(APP2_OFFSET) $(APP_BIN)

app2-flash-all: app2
	@$(ESPTOOLPY_WRITE_FLASH) $(patsubst $(APP_OFFSET),$(APP2_OFFSET),$(ESPTOOL_ALL_FLASH_ARGS))

$(OTA1_BIN): all_binaries
	@cp $(RAW_BIN) $(RAW_BIN).old
	@cp $(RAW_BIN) $(OTA1_BIN)
	@echo [GEN] $(OTA1_BIN)

$(OTA2_BIN): $(OTA1_BIN)
ifdef __COMBILE_OTA_BIN
	@rm -f ./build/esp8266/esp8266_out.ld
	@export CFLAGS= && export CXXFLAGS= && make $(APP_BIN) APP_OFFSET=$(APP2_OFFSET) APP_SIZE=$(APP2_SIZE)
endif
	@cp $(RAW_BIN) $(OTA2_BIN)
	@echo [GEN] $(OTA2_BIN)

$(OTA_BIN): $(OTA2_BIN)
	@cp $(OTA1_BIN) $(OTA_BIN)
ifdef __COMBILE_OTA_BIN
	@cat $(OTA2_BIN) >> $(OTA_BIN)
	@cp $(OTA1_BIN) $(RAW_BIN)
endif
	@echo [GEN] $(OTA_BIN)

PYTHON ?= $(call dequote,$(CONFIG_PYTHON))

ifdef CONFIG_ESP8266_OTA_FROM_OLD
$(OTA_V2_TO_V3_BIN): all
	@$(PYTHON) $(IDF_PATH)/tools/pack_fw.py --output $(OTA_V2_TO_V3_BIN) --app $(PROJECT_NAME).bin  pack3 $(ESPTOOL_ALL_FLASH_ARGS)
	@echo [GEN] $(OTA_V2_TO_V3_BIN)
endif

ifdef CONFIG_ESP8266_OTA_FROM_OLD
ota: $(OTA_V2_TO_V3_BIN)
else
ota: $(OTA_BIN)
	@cp $(RAW_BIN).old $(RAW_BIN)
	@rm $(RAW_BIN).old
endif

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

clean: ota-clean