esp-idf/components/esp_wifi/CMakeLists.txt

idf_build_get_property(idf_target IDF_TARGET)

if(CONFIG_ESP32_NO_BLOBS OR CONFIG_ESP32S2_NO_BLOBS)
    set(link_binary_libs 0)
    set(ldfragments)
else()
    set(link_binary_libs 1)
    set(ldfragments "linker.lf")
endif()

if(IDF_TARGET_ESP32)
    # dport workaround headers are in esp32 component
    set(extra_priv_requires esp32)
else()
    set(extra_priv_requires)
endif()

idf_build_get_property(build_dir BUILD_DIR)

if(CONFIG_ESP32_SUPPORT_MULTIPLE_PHY_INIT_DATA_BIN)
    if(NOT EXISTS "${build_dir}/phy_multiple_init_data.bin")
        file(COPY ${CMAKE_CURRENT_SOURCE_DIR}/${idf_target}/phy_multiple_init_data.bin DESTINATION "${build_dir}")
    endif()
endif()

if(CONFIG_ESP32_MULTIPLE_PHY_DATA_BIN_EMBEDDED)
    set(embed_files "${build_dir}/phy_multiple_init_data.bin")
endif()

idf_component_register(SRCS "src/coexist.c"
                        "src/lib_printf.c"
                        "src/mesh_event.c"
                        "src/phy_init.c"
                        "src/smartconfig.c"
                        "src/smartconfig_ack.c"
                        "src/wifi_init.c"
                        "src/wifi_default.c"
                        "src/wifi_netif.c"
                        "${idf_target}/esp_adapter.c"
                        "src/phy_override.c"
            INCLUDE_DIRS "include" "${idf_target}/include"
            PRIV_REQUIRES wpa_supplicant nvs_flash esp_netif driver esp_timer esp_pm ${extra_priv_requires}
            REQUIRES esp_event
            LDFRAGMENTS "${ldfragments}"
            EMBED_FILES ${embed_files}
            )

set(target_name "${idf_target}")
target_link_libraries(${COMPONENT_LIB} PUBLIC "-L ${CMAKE_CURRENT_SOURCE_DIR}/lib/${target_name}")

# Override functions in PHY lib with the functions in 'phy_override.c'
target_link_libraries(${COMPONENT_LIB} INTERFACE "-u include_esp_phy_override")

if(link_binary_libs)
    set(phy phy)
    set(blobs coexist core espnow mesh net80211 pp smartconfig wapi ${phy})
    if(${idf_target} STREQUAL "esp32")
        list(APPEND blobs rtc)
    endif()

    foreach(blob ${blobs})
        add_prebuilt_library(${blob} "${CMAKE_CURRENT_SOURCE_DIR}/lib/${target_name}/lib${blob}.a"
                            REQUIRES ${COMPONENT_NAME})
        set(blob_reqs ${blobs})
        list(REMOVE_ITEM blob_reqs ${blob}) # remove itself from requirements
        set_property(TARGET ${blob} APPEND PROPERTY INTERFACE_LINK_LIBRARIES ${blob_reqs})
        target_link_libraries(${COMPONENT_LIB} PUBLIC ${blob})
    endforeach()
endif()

if(CONFIG_ESP32_PHY_INIT_DATA_IN_PARTITION)
    idf_component_get_property(esp_common_dir esp_common COMPONENT_DIR)
    partition_table_get_partition_info(phy_partition_offset "--partition-type data --partition-subtype phy" "offset")

    if(CONFIG_ESP32_SUPPORT_MULTIPLE_PHY_INIT_DATA_BIN)
        set(phy_init_data_bin "${build_dir}/phy_multiple_init_data.bin")
        if(CONFIG_ESP32_MULTIPLE_PHY_DATA_BIN_EMBEDDED)
            set(COMPONENT_EMBED_FILES "${build_dir}/phy_multiple_init_data.bin")
        endif()
    else()
        set(phy_init_data_bin "${build_dir}/phy_init_data.bin")

        # To get the phy_init_data.bin file, compile phy_init_data.h as a C file and then objcopy
        # the object file to a raw binary
        idf_build_get_property(config_dir CONFIG_DIR)
        add_custom_command(
            OUTPUT ${phy_init_data_bin}
            DEPENDS ${CMAKE_CURRENT_LIST_DIR}/${idf_target}/include/phy_init_data.h
            COMMAND ${CMAKE_C_COMPILER} -x c -c
            -I ${esp_common_dir}/include -I ${CMAKE_CURRENT_LIST_DIR}/include -I ${config_dir}
            -o phy_init_data.obj
            ${CMAKE_CURRENT_LIST_DIR}/${idf_target}/include/phy_init_data.h
            COMMAND ${CMAKE_OBJCOPY} -O binary phy_init_data.obj ${phy_init_data_bin}
            )
        add_custom_target(phy_init_data ALL DEPENDS ${phy_init_data_bin})
        add_dependencies(flash phy_init_data)

        idf_component_get_property(main_args esptool_py FLASH_ARGS)
        idf_component_get_property(sub_args esptool_py FLASH_SUB_ARGS)
    endif()

    set(phy_name "phy")

    esptool_py_flash_target(${phy_name}-flash "${main_args}" "${sub_args}")
    esptool_py_flash_target_image(${phy_name}-flash ${phy_name} "${phy_partition_offset}" "${phy_init_data_bin}")
    esptool_py_flash_target_image(flash ${phy_name} "${phy_partition_offset}" "${phy_init_data_bin}")
endif()