esp-idf/components/esp_wifi/Kconfig

menu "Wi-Fi"

    config ESP32_WIFI_SW_COEXIST_ENABLE
        bool "Software controls WiFi/Bluetooth coexistence"
        depends on BT_ENABLED
        default y
        help
            If enabled, WiFi & Bluetooth coexistence is controlled by software rather than hardware.
            Recommended for heavy traffic scenarios. Both coexistence configuration options are
            automatically managed, no user intervention is required.
            If only Bluetooth is used, it is recommended to disable this option to reduce binary file
            size.

    config ESP32_WIFI_STATIC_RX_BUFFER_NUM
        int "Max number of WiFi static RX buffers"
        range 2 25
        default 10 if !SPIRAM_TRY_ALLOCATE_WIFI_LWIP
        default 16 if SPIRAM_TRY_ALLOCATE_WIFI_LWIP
        help
            Set the number of WiFi static RX buffers. Each buffer takes approximately 1.6KB of RAM.
            The static rx buffers are allocated when esp_wifi_init is called, they are not freed
            until esp_wifi_deinit is called.

            WiFi hardware use these buffers to receive all 802.11 frames.
            A higher number may allow higher throughput but increases memory use. If ESP32_WIFI_AMPDU_RX_ENABLED
            is enabled, this value is recommended to set equal or bigger than ESP32_WIFI_RX_BA_WIN in order to
            achieve better throughput and compatibility with both stations and APs.

    config ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM
        int "Max number of WiFi dynamic RX buffers"
        range 0 128 if !LWIP_WND_SCALE
        range 0 1024 if LWIP_WND_SCALE
        default 32
        help
            Set the number of WiFi dynamic RX buffers, 0 means unlimited RX buffers will be allocated
            (provided sufficient free RAM). The size of each dynamic RX buffer depends on the size of
            the received data frame.

            For each received data frame, the WiFi driver makes a copy to an RX buffer and then delivers
            it to the high layer TCP/IP stack. The dynamic RX buffer is freed after the higher layer has
            successfully received the data frame.

            For some applications, WiFi data frames may be received faster than the application can
            process them. In these cases we may run out of memory if RX buffer number is unlimited (0).

            If a dynamic RX buffer limit is set, it should be at least the number of static RX buffers.

    choice ESP32_WIFI_TX_BUFFER
        prompt "Type of WiFi TX buffers"
        default ESP32_WIFI_DYNAMIC_TX_BUFFER
        help
            Select type of WiFi TX buffers:

            If "Static" is selected, WiFi TX buffers are allocated when WiFi is initialized and released
            when WiFi is de-initialized. The size of each static TX buffer is fixed to about 1.6KB.

            If "Dynamic" is selected, each WiFi TX buffer is allocated as needed when a data frame is
            delivered to the Wifi driver from the TCP/IP stack. The buffer is freed after the data frame
            has been sent by the WiFi driver. The size of each dynamic TX buffer depends on the length
            of each data frame sent by the TCP/IP layer.

            If PSRAM is enabled, "Static" should be selected to guarantee enough WiFi TX buffers.
            If PSRAM is disabled, "Dynamic" should be selected to improve the utilization of RAM.

        config ESP32_WIFI_STATIC_TX_BUFFER
            bool "Static"
        config ESP32_WIFI_DYNAMIC_TX_BUFFER
            bool "Dynamic"
            depends on !SPIRAM_USE_MALLOC
    endchoice

    config ESP32_WIFI_TX_BUFFER_TYPE
        int
        default 0 if ESP32_WIFI_STATIC_TX_BUFFER
        default 1 if ESP32_WIFI_DYNAMIC_TX_BUFFER

    config ESP32_WIFI_STATIC_TX_BUFFER_NUM
        int "Max number of WiFi static TX buffers"
        depends on ESP32_WIFI_STATIC_TX_BUFFER
        range 1 64
        default 16
        help
            Set the number of WiFi static TX buffers. Each buffer takes approximately 1.6KB of RAM.
            The static RX buffers are allocated when esp_wifi_init() is called, they are not released
            until esp_wifi_deinit() is called.

            For each transmitted data frame from the higher layer TCP/IP stack, the WiFi driver makes a
            copy of it in a TX buffer.  For some applications especially UDP applications, the upper
            layer can deliver frames faster than WiFi layer can transmit. In these cases, we may run out
            of TX buffers.

    config ESP32_WIFI_CACHE_TX_BUFFER_NUM
        int "Max number of WiFi cache TX buffers"
        depends on (ESP32_SPIRAM_SUPPORT || ESP32S2_SPIRAM_SUPPORT)
        range 16 128
        default 32
        help
            Set the number of WiFi cache TX buffer number.

            For each TX packet from uplayer, such as LWIP etc, WiFi driver needs to allocate a static TX
            buffer and makes a copy of uplayer packet. If WiFi driver fails to allocate the static TX buffer,
            it caches the uplayer packets to a dedicated buffer queue, this option is used to configure the
            size of the cached TX queue.

    config ESP32_WIFI_DYNAMIC_TX_BUFFER_NUM
        int "Max number of WiFi dynamic TX buffers"
        depends on ESP32_WIFI_DYNAMIC_TX_BUFFER
        range 1 128
        default 32
        help
            Set the number of WiFi dynamic TX buffers. The size of each dynamic TX buffer is not fixed,
            it depends on the size of each transmitted data frame.

            For each transmitted frame from the higher layer TCP/IP stack, the WiFi driver makes a copy
            of it in a TX buffer. For some applications, especially UDP applications, the upper layer
            can deliver frames faster than WiFi layer can transmit. In these cases, we may run out of TX
            buffers.

    config ESP32_WIFI_CSI_ENABLED
        bool "WiFi CSI(Channel State Information)"
        default n
        help
            Select this option to enable CSI(Channel State Information) feature. CSI takes about
            CONFIG_ESP32_WIFI_STATIC_RX_BUFFER_NUM KB of RAM. If CSI is not used, it is better to disable
            this feature in order to save memory.

    config ESP32_WIFI_AMPDU_TX_ENABLED
        bool "WiFi AMPDU TX"
        default y
        help
            Select this option to enable AMPDU TX feature


    config ESP32_WIFI_TX_BA_WIN
        int "WiFi AMPDU TX BA window size"
        depends on ESP32_WIFI_AMPDU_TX_ENABLED
        range 2 32
        default 6
        help
            Set the size of WiFi Block Ack TX window. Generally a bigger value means higher throughput but
            more memory. Most of time we should NOT change the default value unless special reason, e.g.
            test the maximum UDP TX throughput with iperf etc. For iperf test in shieldbox, the recommended
            value is 9~12.

    config ESP32_WIFI_AMPDU_RX_ENABLED
        bool "WiFi AMPDU RX"
        default y
        help
            Select this option to enable AMPDU RX feature

    config ESP32_WIFI_RX_BA_WIN
        int "WiFi AMPDU RX BA window size"
        depends on ESP32_WIFI_AMPDU_RX_ENABLED
        range 2 32
        default 6 if !SPIRAM_TRY_ALLOCATE_WIFI_LWIP
        default 16 if SPIRAM_TRY_ALLOCATE_WIFI_LWIP
        help
            Set the size of WiFi Block Ack RX window. Generally a bigger value means higher throughput and better
            compatibility but more memory. Most of time we should NOT change the default value unless special
            reason, e.g. test the maximum UDP RX throughput with iperf etc. For iperf test in shieldbox, the
            recommended value is 9~12. If PSRAM is used and WiFi memory is prefered to allocat in PSRAM first,
            the default and minimum value should be 16 to achieve better throughput and compatibility with both
            stations and APs.

    config ESP32_WIFI_AMSDU_TX_ENABLED
        bool "WiFi AMSDU TX"
        depends on (ESP32_SPIRAM_SUPPORT || ESP32S2_SPIRAM_SUPPORT || ESP32S3_SPIRAM_SUPPORT)
        default n
        help
            Select this option to enable AMSDU TX feature

    config ESP32_WIFI_NVS_ENABLED
        bool "WiFi NVS flash"
        default y
        help
            Select this option to enable WiFi NVS flash

    choice ESP32_WIFI_TASK_CORE_ID
        depends on !FREERTOS_UNICORE
        prompt "WiFi Task Core ID"
        default ESP32_WIFI_TASK_PINNED_TO_CORE_0
        help
            Pinned WiFi task to core 0 or core 1.

        config ESP32_WIFI_TASK_PINNED_TO_CORE_0
            bool "Core 0"
        config ESP32_WIFI_TASK_PINNED_TO_CORE_1
            bool "Core 1"
    endchoice

    config ESP32_WIFI_SOFTAP_BEACON_MAX_LEN
        int "Max length of WiFi SoftAP Beacon"
        range 752 1256
        default 752
        help
            ESP-MESH utilizes beacon frames to detect and resolve root node conflicts (see documentation). However the
            default length of a beacon frame can simultaneously hold only five root node identifier structures,
            meaning that a root node conflict of up to five nodes can be detected at one time. In the occurence of
            more root nodes conflict involving more than five root nodes, the conflict resolution process will detect
            five of the root nodes, resolve the conflict, and re-detect more root nodes. This process will repeat
            until all root node conflicts are resolved. However this process can generally take a very long time.

            To counter this situation, the beacon frame length can be increased such that more root nodes can be
            detected simultaneously. Each additional root node will require 36 bytes and should be added ontop of the
            default beacon frame length of
            752 bytes. For example, if you want to detect 10 root nodes simultaneously, you need to set the beacon
            frame length as
            932 (752+36*5).

            Setting a longer beacon length also assists with debugging as the conflicting root nodes can be identified
            more quickly.

    config ESP32_WIFI_MGMT_SBUF_NUM
        int "WiFi mgmt short buffer number"
        range 6 32
        default 32
        help
            Set the number of WiFi management short buffer.

    config ESP32_WIFI_DEBUG_LOG_ENABLE
        bool "Enable WiFi debug log"
        default n
        help
            Select this option to enable WiFi debug log

    choice ESP32_WIFI_DEBUG_LOG_LEVEL
        depends on ESP32_WIFI_DEBUG_LOG_ENABLE
        prompt "WiFi debug log level"
        default ESP32_WIFI_DEBUG_LOG_DEBUG
        help
            The WiFi log is divided into the following levels: ERROR,WARNING,INFO,DEBUG,VERBOSE.
            The ERROR,WARNING,INFO levels are enabled by default, and the DEBUG,VERBOSE levels can be enabled here.

        config ESP32_WIFI_DEBUG_LOG_DEBUG
            bool "WiFi Debug Log Debug"
        config ESP32_WIFI_DEBUG_LOG_VERBOSE
            bool "WiFi Debug Log Verbose"
    endchoice

    choice ESP32_WIFI_DEBUG_LOG_MODULE
        depends on ESP32_WIFI_DEBUG_LOG_ENABLE
        prompt "WiFi debug log module"
        default ESP32_WIFI_DEBUG_LOG_MODULE_WIFI
        help
            The WiFi log module contains three parts: WIFI,COEX,MESH. The WIFI module indicates the logs related to
            WiFi, the COEX module indicates the logs related to WiFi and BT(or BLE) coexist, the MESH module indicates
            the logs related to Mesh. When ESP32_WIFI_LOG_MODULE_ALL is enabled, all modules are selected.

        config ESP32_WIFI_DEBUG_LOG_MODULE_ALL
            bool "WiFi Debug Log Module All"
        config ESP32_WIFI_DEBUG_LOG_MODULE_WIFI
            bool "WiFi Debug Log Module WiFi"
        config ESP32_WIFI_DEBUG_LOG_MODULE_COEX
            bool "WiFi Debug Log Module Coex"
        config ESP32_WIFI_DEBUG_LOG_MODULE_MESH
            bool "WiFi Debug Log Module Mesh"
    endchoice

    config ESP32_WIFI_DEBUG_LOG_SUBMODULE
        depends on ESP32_WIFI_DEBUG_LOG_ENABLE
        bool "WiFi debug log submodule"
        default n
        help
            Enable this option to set the WiFi debug log submodule.
            Currently the log submodule contains the following parts: INIT,IOCTL,CONN,SCAN.
            The INIT submodule indicates the initialization process.The IOCTL submodule indicates the API calling
            process.
            The CONN submodule indicates the connecting process.The SCAN submodule indicates the scaning process.

    config ESP32_WIFI_DEBUG_LOG_SUBMODULE_ALL
        depends on ESP32_WIFI_DEBUG_LOG_SUBMODULE
        bool "WiFi Debug Log Submodule All"
        default n
        help
            When this option is enabled, all debug submodules are selected.

    config ESP32_WIFI_DEBUG_LOG_SUBMODULE_INIT
        depends on ESP32_WIFI_DEBUG_LOG_SUBMODULE && (!ESP32_WIFI_DEBUG_LOG_SUBMODULE_ALL)
        bool "WiFi Debug Log Submodule Init"
        default n

    config ESP32_WIFI_DEBUG_LOG_SUBMODULE_IOCTL
        depends on ESP32_WIFI_DEBUG_LOG_SUBMODULE && (!ESP32_WIFI_DEBUG_LOG_SUBMODULE_ALL)
        bool "WiFi Debug Log Submodule Ioctl"
        default n

    config ESP32_WIFI_DEBUG_LOG_SUBMODULE_CONN
        depends on ESP32_WIFI_DEBUG_LOG_SUBMODULE && (!ESP32_WIFI_DEBUG_LOG_SUBMODULE_ALL)
        bool "WiFi Debug Log Submodule Conn"
        default n

    config ESP32_WIFI_DEBUG_LOG_SUBMODULE_SCAN
        depends on ESP32_WIFI_DEBUG_LOG_SUBMODULE && (!ESP32_WIFI_DEBUG_LOG_SUBMODULE_ALL)
        bool "WiFi Debug Log Submodule Scan"
        default n

    config ESP32_WIFI_IRAM_OPT
        bool "WiFi IRAM speed optimization"
        default n if (BT_ENABLED && ESP32_SPIRAM_SUPPORT)
        default y
        help
            Select this option to place frequently called Wi-Fi library functions in IRAM.
            When this option is disabled, more than 10Kbytes of IRAM memory will be saved
            but Wi-Fi throughput will be reduced.

    config ESP32_WIFI_RX_IRAM_OPT
        bool "WiFi RX IRAM speed optimization"
        default n if (BT_ENABLED && ESP32_SPIRAM_SUPPORT)
        default y
        help
            Select this option to place frequently called Wi-Fi library RX functions in IRAM.
            When this option is disabled, more than 17Kbytes of IRAM memory will be saved
            but Wi-Fi performance will be reduced.

    config ESP32_WIFI_ENABLE_WPA3_SAE
        bool "Enable WPA3-Personal"
        default y
        help
            Select this option to allow the device to establish a WPA3-Personal connection with eligible AP's.
            PMF (Protected Management Frames) is a prerequisite feature for a WPA3 connection, it needs to be
            explicitly configured before attempting connection. Please refer to the Wi-Fi Driver API Guide for details.

    config ESP_WIFI_SLP_IRAM_OPT
        bool "WiFi SLP IRAM speed optimization"
        help
            Select this option to place called Wi-Fi library TBTT process and receive beacon functions in IRAM.
            Some functions can be put in IRAM either by ESP32_WIFI_IRAM_OPT and ESP32_WIFI_RX_IRAM_OPT, or this one.
            If already enabled ESP32_WIFI_IRAM_OPT, the other 7.3KB IRAM memory would be taken by this option.
            If already enabled ESP32_WIFI_RX_IRAM_OPT, the other 1.3KB IRAM memory would be taken by this option.
            If neither of them are enabled, the other 7.4KB IRAM memory would be taken by this option.
            Wi-Fi power-save mode average current would be reduced if this option is enabled.

endmenu  # Wi-Fi

menu "PHY"

    config ESP32_PHY_CALIBRATION_AND_DATA_STORAGE
        # ToDo: remove target dependency once NVS and PHY partial calibration are supported
        # also re-enable the <RF_calibration> entry in docs/../api-guides/index.rst
        depends on IDF_TARGET_ESP32
        bool "Store phy calibration data in NVS"
        default y
        help
            If this option is enabled, NVS will be initialized and calibration data will be loaded from there.
            PHY calibration will be skipped on deep sleep wakeup. If calibration data is not found, full calibration
            will be performed and stored in NVS. Normally, only partial calibration will be performed.
            If this option is disabled, full calibration will be performed.

            If it's easy that your board calibrate bad data, choose 'n'.
            Two cases for example, you should choose 'n':
            1.If your board is easy to be booted up with antenna disconnected.
            2.Because of your board design, each time when you do calibration, the result are too unstable.
            If unsure, choose 'y'.

    menuconfig ESP32_PHY_INIT_DATA_IN_PARTITION
        bool "Use a partition to store PHY init data"
        default n
        help
            If enabled, PHY init data will be loaded from a partition.
            When using a custom partition table, make sure that PHY data
            partition is included (type: 'data', subtype: 'phy').
            With default partition tables, this is done automatically.
            If PHY init data is stored in a partition, it has to be flashed there,
            otherwise runtime error will occur.

            If this option is not enabled, PHY init data will be embedded
            into the application binary.

            If unsure, choose 'n'.

    if ESP32_PHY_INIT_DATA_IN_PARTITION
        config ESP32_SUPPORT_MULTIPLE_PHY_INIT_DATA_BIN
            bool "Support multiple PHY init data bin"
            depends on ESP32_PHY_INIT_DATA_IN_PARTITION
            default n
            help
                If enabled, the corresponding PHY init data type can be automatically switched
                according to the country code. China's PHY init data bin is used by default.
                Can be modified by country information in API esp_wifi_set_country().
                The priority of switching the PHY init data type is:
                1. Country configured by API esp_wifi_set_country()
                and the parameter policy is WIFI_COUNTRY_POLICY_MANUAL.
                2. Country notified by the connected AP.
                3. Country configured by API esp_wifi_set_country()
                and the parameter policy is WIFI_COUNTRY_POLICY_AUTO.

        config ESP32_PHY_INIT_DATA_ERROR
            bool "Terminate operation when PHY init data error"
            depends on ESP32_SUPPORT_MULTIPLE_PHY_INIT_DATA_BIN
            default n
            help
                If enabled, when an error occurs while the PHY init data is updated,
                the program will terminate and restart.
                If not enabled, the PHY init data will not be updated when an error occurs.
    endif

    config ESP32_PHY_MAX_WIFI_TX_POWER
        int "Max WiFi TX power (dBm)"
        range 10 20
        default 20
        help
            Set maximum transmit power for WiFi radio. Actual transmit power for high
            data rates may be lower than this setting.

    config ESP32_PHY_MAX_TX_POWER
        int
        default ESP32_PHY_MAX_WIFI_TX_POWER

    config ESP32_PHY_MAC_BB_PD
        bool "Power down MAC and baseband of Wi-Fi and Bluetooth when PHY is disabled"
        depends on IDF_TARGET_ESP32C3
        default n
        help
            If enabled, the MAC and baseband of Wi-Fi and Bluetooth will be powered
            down when PHY is disabled. Enabling this setting reduces power consumption
            by a small amount but increases RAM use by approximately 4 KB(Wi-Fi only),
            2 KB(Bluetooth only) or 5.3 KB(Wi-Fi + Bluetooth).

endmenu  # PHY