# ESP32 specific flashing options
FLASH_CHIP  = $(CPU)
FLASH_MODE ?= dout
FLASH_FREQ  = 40m   # DO NOT CHANGE
FLASH_SIZE ?= 4
BOOTLOADER_POS = 0x1000

ESPTOOL ?= $(RIOTTOOLS)/esptools/esptool_v3.2.py

include $(RIOTCPU)/esp_common/Makefile.include

# regular Makefile

TARGET_ARCH_$(CPU) ?= xtensa-$(CPU)-elf
TARGET_ARCH ?= $(TARGET_ARCH_$(CPU))

CPU_UC = $(shell echo '$(CPU)' | tr '[:lower:]' '[:upper:]')

PSEUDOMODULES += esp_bootloader
PSEUDOMODULES += esp_gdbstub
PSEUDOMODULES += esp_hw_counter
PSEUDOMODULES += esp_i2c_hw
PSEUDOMODULES += esp_jtag
PSEUDOMODULES += esp_rtc_timer_32k
PSEUDOMODULES += esp_spi_ram
PSEUDOMODULES += esp_wifi_enterprise

INCLUDES += -I$(RIOTCPU)/$(CPU)/esp-idf/include
INCLUDES += -I$(RIOTCPU)/$(CPU)/esp-idf/include/log

INCLUDES += -I$(ESP32_SDK_DIR)/components/
INCLUDES += -I$(ESP32_SDK_DIR)/components/driver/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_common/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_hw_support/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_hw_support/include/soc
INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_rom/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_rom/include/$(CPU)
INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_timer/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/hal/$(CPU)/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/hal/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/hal/platform_port/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/heap/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/log/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/newlib/platform_include
INCLUDES += -I$(ESP32_SDK_DIR)/components/soc/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/soc/$(CPU)/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/xtensa/include
INCLUDES += -I$(ESP32_SDK_DIR)/components/xtensa/$(CPU)/include

ifneq (,$(filter esp_spi_ram,$(USEMODULE)))
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_hw_support/include/soc/$(CPU)
endif

ifneq (,$(filter esp_idf_spi_flash,$(USEMODULE)))
  INCLUDES += -I$(ESP32_SDK_DIR)/components/bootloader_support/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/spi_flash/include
endif

ifneq (,$(filter esp_wifi_any,$(USEMODULE)))
  INCLUDES += -I$(ESP32_SDK_DIR)/components/bootloader_support/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_eth/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_event/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_netif/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_system/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_wifi/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/nvs_flash/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/spi_flash/include
endif

ifneq (,$(filter esp_wifi_enterprise,$(USEMODULE)))
  INCLUDES += -I$(ESP32_SDK_DIR)/components/wpa_supplicant/esp_supplicant/include
endif

ifneq (,$(filter esp_eth,$(USEMODULE)))
  INCLUDES += -I$(RIOTCPU)/$(CPU)/esp-eth
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_eth/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_event/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_netif/include
  INCLUDES += -I$(ESP32_SDK_DIR)/components/esp_wifi/include
endif

# we use ESP32 only in single core mode
CFLAGS += -DCONFIG_ESP_SYSTEM_SINGLE_CORE_MODE
CFLAGS += -DCONFIG_FREERTOS_UNICORE

# other ESP-IDF configurations
CFLAGS += -DCONFIG_IDF_TARGET_$(CPU_UC)
CFLAGS += -DESP_PLATFORM
CFLAGS += -DLOG_TAG_IN_BRACKETS

# shortcuts used by ESP-IDF
CFLAGS += -Dasm=__asm
CFLAGS += -Dtypeof=__typeof__
CFLAGS += -D_CONST=const

LINKFLAGS += -L$(ESP32_SDK_DIR)/components/xtensa/$(CPU)
ARCHIVES += -lxt_hal

LINKFLAGS += -L$(RIOTCPU)/$(CPU)/ld/
LINKFLAGS += -T$(ESP32_SDK_DIR)/components/soc/$(CPU)/ld/$(CPU).peripherals.ld
LINKFLAGS += -T$(ESP32_SDK_DIR)/components/esp_rom/$(CPU)/ld/$(CPU).rom.api.ld
LINKFLAGS += -T$(ESP32_SDK_DIR)/components/esp_rom/$(CPU)/ld/$(CPU).rom.ld
LINKFLAGS += -T$(ESP32_SDK_DIR)/components/esp_rom/$(CPU)/ld/$(CPU).rom.newlib-data.ld
LINKFLAGS += -T$(ESP32_SDK_DIR)/components/esp_rom/$(CPU)/ld/$(CPU).rom.newlib-funcs.ld
LINKFLAGS += -T$(ESP32_SDK_DIR)/components/esp_rom/$(CPU)/ld/$(CPU).rom.newlib-time.ld
LINKFLAGS += -T$(ESP32_SDK_DIR)/components/esp_rom/$(CPU)/ld/$(CPU).rom.spiflash.ld
LINKFLAGS += -T$(ESP32_SDK_DIR)/components/esp_rom/$(CPU)/ld/$(CPU).rom.redefined.ld
LINKFLAGS += -T$(RIOTCPU)/$(CPU)/ld/memory.ld
LINKFLAGS += -T$(RIOTCPU)/$(CPU)/ld/sections.ld
LINKFLAGS += -nostdlib -lgcc -Wl,-gc-sections

# Libraries needed when using esp_wifi_any pseudomodule
ifneq (,$(filter esp_wifi_any,$(USEMODULE)))
  LINKFLAGS += -L$(ESP32_SDK_LIB_WIFI_DIR)/$(CPU)
  LINKFLAGS += -L$(ESP32_SDK_LIB_PHY_DIR)/$(CPU)
  ARCHIVES += -lcore -lrtc -lnet80211 -lpp -lcoexist
  ARCHIVES += -lphy -lstdc++
endif

# Libraries needed when using esp_now module
ifneq (,$(filter esp_now,$(USEMODULE)))
  ARCHIVES += -lespnow -lmesh
endif

ifneq (,$(filter cpp,$(USEMODULE)))
  ARCHIVES += -lstdc++
endif

ifneq (,$(filter esp_bootloader,$(USEMODULE)))
  # Bootloader file used by esptool.inc.mk
  BOOTLOADER_BIN ?= $(BINDIR)/esp_bootloader/bootloader.bin
endif

ifneq (,$(filter esp_jtag,$(USEMODULE)))
  PROGRAMMERS_SUPPORTED += openocd
  PARTITION_POS = 0x8000
  OPENOCD_PRE_FLASH_CMDS = -c 'echo "Installing Bootloader at $(BOOTLOADER_POS)"' \
    -c 'flash write_image erase "$(BOOTLOADER_BIN)" $(BOOTLOADER_POS) bin' \
    -c 'echo "Installing partition table at $(PARTITION_POS)"' \
    -c 'flash write_image erase "$(BINDIR)/partitions.bin" $(PARTITION_POS) bin'
  IMAGE_OFFSET = 0x10000
  # Flash checksumming not supported on xtensa
  OPENOCD_SKIP_VERIFY = yes
  # Without resets debug target fails with 'Target not examined yet'
  OPENOCD_DBG_EXTRA_CMD += -c 'reset halt'
endif

$(BOOTLOADER_BIN):