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esp-idf/components/esp_wifi/Kconfig
Nachiket Kukade 4c76af3f68 esp_wifi: Add support for NAN Discovery and Datapath 
Update wifi lib with below -
1. Create NAN Discovery SM for beaconing & cluster formation
2. Create NAN interface for Tx/Rx of beacons & action frames
3. Add commands & events for NAN Services Publish/Subscribe/Followup
4. Add NAN Datapath definitions, Events, Peer structures
5. Support for forming and parsing of Datapath related attributes
6. Modules for NDP Req, Resp, Confirm, Term, Peer management
7. NAN Interface related additions in Datapath, Data Tx Q's

In addition include below changes -
1. Add netif and driver support for NAN Interface
2. Add simple examples for Publisher-Subscriber usecases
3. Add an advanced console example that supports commands
   for NAN Discovery, Services & Datapath
4. Add wifi_apps for providing better NAN API's and Peer management

Co-authored-by: Shyamal Khachane <shyamal.khachane@espressif.com>
2023-03-10 11:18:23 +05:30

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menu "Wi-Fi"
visible if !IDF_TARGET_ESP32H4
config ESP_WIFI_ENABLED
bool
default y if SOC_WIFI_SUPPORTED
config ESP_WIFI_STATIC_RX_BUFFER_NUM
int "Max number of WiFi static RX buffers"
range 2 25 if !SOC_WIFI_HE_SUPPORT
range 2 128 if SOC_WIFI_HE_SUPPORT
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 ESP_WIFI_AMPDU_RX_ENABLED
is enabled, this value is recommended to set equal or bigger than ESP_WIFI_RX_BA_WIN in order to
achieve better throughput and compatibility with both stations and APs.
config ESP_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 ESP_WIFI_TX_BUFFER
prompt "Type of WiFi TX buffers"
default ESP_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 ESP_WIFI_STATIC_TX_BUFFER
bool "Static"
config ESP_WIFI_DYNAMIC_TX_BUFFER
bool "Dynamic"
depends on !SPIRAM_USE_MALLOC
endchoice
config ESP_WIFI_TX_BUFFER_TYPE
int
default 0 if ESP_WIFI_STATIC_TX_BUFFER
default 1 if ESP_WIFI_DYNAMIC_TX_BUFFER
config ESP_WIFI_STATIC_TX_BUFFER_NUM
int "Max number of WiFi static TX buffers"
depends on ESP_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 ESP_WIFI_CACHE_TX_BUFFER_NUM
int "Max number of WiFi cache TX buffers"
depends on SPIRAM
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 ESP_WIFI_DYNAMIC_TX_BUFFER_NUM
int "Max number of WiFi dynamic TX buffers"
depends on ESP_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 ESP_WIFI_CSI_ENABLED
bool "WiFi CSI(Channel State Information)"
depends on SOC_WIFI_CSI_SUPPORT
default n
help
Select this option to enable CSI(Channel State Information) feature. CSI takes about
CONFIG_ESP_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 ESP_WIFI_AMPDU_TX_ENABLED
bool "WiFi AMPDU TX"
default y
help
Select this option to enable AMPDU TX feature
config ESP_WIFI_TX_BA_WIN
int "WiFi AMPDU TX BA window size"
depends on ESP_WIFI_AMPDU_TX_ENABLED
range 2 32 if !SOC_WIFI_HE_SUPPORT
range 2 64 if SOC_WIFI_HE_SUPPORT
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 ESP_WIFI_AMPDU_RX_ENABLED
bool "WiFi AMPDU RX"
default y
help
Select this option to enable AMPDU RX feature
config ESP_WIFI_RX_BA_WIN
int "WiFi AMPDU RX BA window size"
depends on ESP_WIFI_AMPDU_RX_ENABLED
range 2 32 if !SOC_WIFI_HE_SUPPORT
range 2 64 if SOC_WIFI_HE_SUPPORT
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 ESP_WIFI_AMSDU_TX_ENABLED
bool "WiFi AMSDU TX"
depends on SPIRAM
default n
help
Select this option to enable AMSDU TX feature
config ESP_WIFI_NVS_ENABLED
bool "WiFi NVS flash"
default y
help
Select this option to enable WiFi NVS flash
choice ESP_WIFI_TASK_CORE_ID
depends on !FREERTOS_UNICORE
prompt "WiFi Task Core ID"
default ESP_WIFI_TASK_PINNED_TO_CORE_0
help
Pinned WiFi task to core 0 or core 1.
config ESP_WIFI_TASK_PINNED_TO_CORE_0
bool "Core 0"
config ESP_WIFI_TASK_PINNED_TO_CORE_1
bool "Core 1"
endchoice
config ESP_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 ESP_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 ESP_WIFI_IRAM_OPT
bool "WiFi IRAM speed optimization"
default n if (BT_ENABLED && SPIRAM && IDF_TARGET_ESP32)
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 ESP_WIFI_RX_IRAM_OPT
bool "WiFi RX IRAM speed optimization"
default n if (BT_ENABLED && SPIRAM && IDF_TARGET_ESP32)
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 ESP_WIFI_ENABLE_WPA3_SAE
bool "Enable WPA3-Personal"
default y
depends on ESP_WIFI_MBEDTLS_CRYPTO
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_ENABLE_SAE_PK
bool "Enable SAE-PK"
default y
depends on ESP_WIFI_ENABLE_WPA3_SAE
help
Select this option to enable SAE-PK
config ESP_WIFI_SOFTAP_SAE_SUPPORT
bool "Enable WPA3 Personal(SAE) SoftAP"
default y
depends on ESP_WIFI_ENABLE_WPA3_SAE
depends on ESP_WIFI_SOFTAP_SUPPORT
help
Select this option to enable SAE support in softAP mode.
config ESP_WIFI_ENABLE_WPA3_OWE_STA
bool "Enable OWE STA"
default y
select ESP_WIFI_MBEDTLS_CRYPTO
help
Select this option to allow the device to establish OWE 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"
select PM_SLP_DEFAULT_PARAMS_OPT
select PERIPH_CTRL_FUNC_IN_IRAM
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 ESP_WIFI_IRAM_OPT and ESP_WIFI_RX_IRAM_OPT, or this one.
If already enabled ESP_WIFI_IRAM_OPT, the other 7.3KB IRAM memory would be taken by this option.
If already enabled ESP_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.
config ESP_WIFI_SLP_DEFAULT_MIN_ACTIVE_TIME
int "Minimum active time"
range 8 60
default 50
depends on ESP_WIFI_SLP_IRAM_OPT
help
The minimum timeout for waiting to receive data, unit: milliseconds.
config ESP_WIFI_SLP_DEFAULT_MAX_ACTIVE_TIME
int "Maximum keep alive time"
range 10 60
default 10
depends on ESP_WIFI_SLP_IRAM_OPT
help
The maximum time that wifi keep alive, unit: seconds.
config ESP_WIFI_FTM_ENABLE
bool "WiFi FTM"
default n
depends on SOC_WIFI_FTM_SUPPORT
help
Enable feature Fine Timing Measurement for calculating WiFi Round-Trip-Time (RTT).
config ESP_WIFI_FTM_INITIATOR_SUPPORT
bool "FTM Initiator support"
default y
depends on ESP_WIFI_FTM_ENABLE
config ESP_WIFI_FTM_RESPONDER_SUPPORT
bool "FTM Responder support"
default y
depends on ESP_WIFI_FTM_ENABLE
config ESP_WIFI_STA_DISCONNECTED_PM_ENABLE
bool "Power Management for station at disconnected"
default y
help
Select this option to enable power_management for station when disconnected.
Chip will do modem-sleep when rf module is not in use any more.
config ESP_WIFI_GCMP_SUPPORT
bool "WiFi GCMP Support(GCMP128 and GCMP256)"
default n
depends on SOC_WIFI_GCMP_SUPPORT
help
Select this option to enable GCMP support. GCMP support is compulsory for WiFi Suite-B support.
config ESP_WIFI_GMAC_SUPPORT
bool "WiFi GMAC Support(GMAC128 and GMAC256)"
default n
help
Select this option to enable GMAC support. GMAC support is compulsory for WiFi 192 bit certification.
config ESP_WIFI_SOFTAP_SUPPORT
bool "WiFi SoftAP Support"
default y
help
WiFi module can be compiled without SoftAP to save code size.
config ESP_WIFI_ENHANCED_LIGHT_SLEEP
bool "WiFi modem automatically receives the beacon"
default n
depends on ESP_PHY_MAC_BB_PD && SOC_PM_SUPPORT_BEACON_WAKEUP
help
The wifi modem automatically receives the beacon frame during light sleep.
config ESP_WIFI_SLP_BEACON_LOST_OPT
bool "Wifi sleep optimize when beacon lost"
help
Enable wifi sleep optimization when beacon loss occurs and immediately enter
sleep mode when the WiFi module detects beacon loss.
config ESP_WIFI_SLP_BEACON_LOST_TIMEOUT
int "Beacon loss timeout"
range 5 100
default 10
depends on ESP_WIFI_SLP_BEACON_LOST_OPT
help
Timeout time for close rf phy when beacon loss occurs, Unit: 1024 microsecond.
config ESP_WIFI_SLP_BEACON_LOST_THRESHOLD
int "Maximum number of consecutive lost beacons allowed"
range 0 8
default 3
depends on ESP_WIFI_SLP_BEACON_LOST_OPT
help
Maximum number of consecutive lost beacons allowed, WiFi keeps Rx state when
the number of consecutive beacons lost is greater than the given threshold.
config ESP_WIFI_SLP_PHY_ON_DELTA_EARLY_TIME
int "Delta early time for RF PHY on"
range 0 100
default 2
depends on ESP_WIFI_SLP_BEACON_LOST_OPT && SOC_WIFI_SUPPORT_VARIABLE_BEACON_WINDOW
help
Delta early time for rf phy on, When the beacon is lost, the next rf phy on will
be earlier the time specified by the configuration item, Unit: 32 microsecond.
config ESP_WIFI_SLP_PHY_OFF_DELTA_TIMEOUT_TIME
int "Delta timeout time for RF PHY off"
range 0 8
default 2
depends on ESP_WIFI_SLP_BEACON_LOST_OPT && SOC_WIFI_SUPPORT_VARIABLE_BEACON_WINDOW
help
Delta timeout time for rf phy off, When the beacon is lost, the next rf phy off will
be delayed for the time specified by the configuration item. Unit: 1024 microsecond.
config ESP_WIFI_ESPNOW_MAX_ENCRYPT_NUM
int "Maximum espnow encrypt peers number"
range 0 4 if IDF_TARGET_ESP32C2
range 0 17 if (!IDF_TARGET_ESP32C2)
default 2 if IDF_TARGET_ESP32C2
default 7 if (!IDF_TARGET_ESP32C2)
help
Maximum number of encrypted peers supported by espnow.
The number of hardware keys for encryption is fixed. And the espnow and SoftAP share the same
hardware keys. So this configuration will affect the maximum connection number of SoftAP.
Maximum espnow encrypted peers number + maximum number of connections of SoftAP = Max hardware keys number.
When using ESP mesh, this value should be set to a maximum of 6.
config ESP_WIFI_NAN_ENABLE
bool "WiFi Aware"
default n
depends on SOC_WIFI_NAN_SUPPORT
help
Enable WiFi Aware (NAN) feature.
config ESP_WIFI_ENABLE_WIFI_TX_STATS
bool "Enable Wi-Fi transmission statistics"
depends on SOC_WIFI_HE_SUPPORT
default "y"
help
Enable Wi-Fi transmission statistics. Total support 4 access category. Each access category
will use 346 bytes memory.
config ESP_WIFI_MBEDTLS_CRYPTO
bool "Use MbedTLS crypto APIs"
default y
select MBEDTLS_AES_C
select MBEDTLS_ECP_C
select MBEDTLS_ECDH_C
select MBEDTLS_ECDSA_C
select MBEDTLS_TLS_ENABLED
help
Select this option to use MbedTLS crypto APIs which utilize hardware acceleration.
if ESP_WIFI_MBEDTLS_CRYPTO
config ESP_WIFI_MBEDTLS_TLS_CLIENT
bool "Use MbedTLS TLS client for WiFi Enterprise connection"
default y
select MBEDTLS_TLS_ENABLED
help
Select this option to use MbedTLS TLS client for WPA2 enterprise connection.
Please note that from MbedTLS-3.0 onwards, MbedTLS does not support SSL-3.0
TLS-v1.0, TLS-v1.1 versions. Incase your server is using one of these version,
it is advisable to update your server.
Please disable this option for compatibilty with older TLS versions.
endif
config ESP_WIFI_WAPI_PSK
bool "Enable WAPI PSK support"
depends on SOC_WIFI_WAPI_SUPPORT
default n
help
Select this option to enable WAPI-PSK
which is a Chinese National Standard Encryption for Wireless LANs (GB 15629.11-2003).
config ESP_WIFI_SUITE_B_192
bool "Enable NSA suite B support with 192 bit key"
default n
select ESP_WIFI_GCMP_SUPPORT
select ESP_WIFI_GMAC_SUPPORT
help
Select this option to enable 192 bit NSA suite-B.
This is necessary to support WPA3 192 bit security.
config ESP_WIFI_WPS_STRICT
bool "Strictly validate all WPS attributes"
default n
help
Select this option to enable validate each WPS attribute
rigorously. Disabling this add the workaorunds with various APs.
Enabling this may cause inter operability issues with some APs.
config ESP_WIFI_11KV_SUPPORT
bool "Enable 802.11k, 802.11v APIs Support"
default n
help
Select this option to enable 802.11k 802.11v APIs(RRM and BTM support).
Only APIs which are helpful for network assisted roaming
are supported for now.
Enable this option with BTM and RRM enabled in sta config
to make device ready for network assisted roaming.
BTM: BSS transition management enables an AP to request a station to transition
to a specific AP, or to indicate to a station a set of preferred APs.
RRM: Radio measurements enable STAs to understand the radio environment,
it enables STAs to observe and gather data on radio link performance
and on the radio environment. Current implementation adds beacon report,
link measurement, neighbor report.
config ESP_WIFI_SCAN_CACHE
bool "Keep scan results in cache"
depends on ESP_WIFI_11KV_SUPPORT
default n
help
Keep scan results in cache, if not enabled, those
will be flushed immediately.
config ESP_WIFI_MBO_SUPPORT
bool "Enable Multi Band Operation Certification Support"
default n
select ESP_WIFI_11KV_SUPPORT
select ESP_WIFI_SCAN_CACHE
help
Select this option to enable WiFi Multiband operation certification support.
config ESP_WIFI_DPP_SUPPORT
bool "Enable DPP support"
default n
select ESP_WIFI_MBEDTLS_CRYPTO
help
Select this option to enable WiFi Easy Connect Support.
config ESP_WIFI_11R_SUPPORT
bool "Enable 802.11R (Fast Transition) Support"
default n
help
Select this option to enable WiFi Fast Transition Support.
config ESP_WIFI_WPS_SOFTAP_REGISTRAR
bool "Add WPS Registrar support in SoftAP mode"
depends on ESP_WIFI_SOFTAP_SUPPORT
default n
help
Select this option to enable WPS registrar support in softAP mode.
config ESP_WIFI_ENABLE_WIFI_RX_STATS
bool "Enable Wi-Fi reception statistics"
depends on SOC_WIFI_HE_SUPPORT
default "y"
help
Enable Wi-Fi reception statistics. Total support 2 access category. Each access category
will use 190 bytes memory.
config ESP_WIFI_ENABLE_WIFI_RX_MU_STATS
bool "Enable Wi-Fi DL MU-MIMO and DL OFDMA reception statistics"
depends on ESP_WIFI_ENABLE_WIFI_RX_STATS
default "y"
help
Enable Wi-Fi DL MU-MIMO and DL OFDMA reception statistics. Will use 10932 bytes memory.
config ESP_WIFI_DEBUG_PRINT
bool "Print debug messages from WPA Supplicant"
default n
help
Select this option to print logging information from WPA supplicant,
this includes handshake information and key hex dumps depending
on the project logging level.
Enabling this could increase the build size ~60kb
depending on the project logging level.
config ESP_WIFI_TESTING_OPTIONS
bool "Add DPP testing code"
default n
help
Select this to enable unity test for DPP.
endmenu # Wi-Fi
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