RDKBWIFI-454: Added station RSSI (unassociated STA statistics) implementation

[vlad-safonov]

Reason for change: added implementation of new RBUS method "Device.WiFi.AccessPoint.{i}.X_RDKCENTRAL-COM_GetNaSta". Aslo added support unassoc STA datamodel in the Easymesh translator

Dependent PR: rdk-wifi-hal/#721, rdkb-halif-wifi/#109

Test procedure: Execute rbus request: Device.WiFi.AccessPoint.{i}.X_RDKCENTRAL-COM_GetNaSta
with Json string, e.g.

  "Version": "1.0",
  "SubDocName": "UnassocStaQuery",
  "UnassocStaQueryList": [
    {
      "opclass": 115,
      "channels_length": 2,
      "channels": [
        {
          "channel": 36,
          "sta_list_length": 2,
          "sta_macs": ["AA:BB:CC:DD:EE:01", "AA:BB:CC:DD:EE:02"]
        },
        {
          "channel": 40,
          "sta_list_length": 1,
          "sta_macs": ["AA:BB:CC:DD:EE:03"]
        }
      ]
    },
    {
      "opclass": 128,
      "channels_length": 1,
      "channels": [
        {
          "channel": 40,
          "sta_list_length": 1,
          "sta_macs": ["AA:BB:CC:DD:EE:04"]
        }
      ]
    }
  ]
}

and subscribe for rbus event Device.WiFi.EM.NaStaResponse:, expect to get response, like this

{
  "UnassociatedSTALinkMetricsResponse": {
    "num_sta": 2,
    "sta_list": [
      {
        "sta_mac": "AA:BB:CC:DD:EE:FF",
        "channel": 6,
        "op_class": 81,
        "rcpi": 120
      },
      {
        "sta_mac": "11:22:33:44:55:66",
        "channel": 36,
        "op_class": 115,
        "rcpi": 95
      }
    ],
  }
}

Note: Channel parameter:
The primary channel is expected in "UnassocStaQuery" JSON. "op_class" and primary channel are used internally to calculate center frequency and bandwidth.

RCPI:

MAX_RSSI = MAX(RSSI[ant0]...RSSI[ant4]);
RCPI = (MAX_RSSI + 110) * 2;
RCPI = CLAP(RCPI, 0, 220);

Priority: P2
Risks: Low

[rdkcmf-jenkins]

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[vlad-safonov]

I have read the CLA Document and I hereby sign the CLA

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[mhughesacn]

Hi @vlad-safonov : Please add a credit for MaxLinear to the end of the NOTICE file at the top level in this component:

Copyright 2026 MaxLinear, Inc
Licensed under the Apache License, Version 2.0

and I will clear off the checks.
Thank you - MartinH, RDK CMF Compliance Team

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[rdkcmf-jenkins]

b'## WARNING: A Blackduck scan failure has been waived

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[Copilot]

Pull request overview

This PR adds support for unassociated station (NaSta) RSSI statistics by introducing a new WebConfig subdoc (UnassocStaQuery), wiring it into the controller apply path, and exposing a new RBUS method Device.WiFi.AccessPoint.{i}.X_RDKCENTRAL-COM_GetNaSta that publishes results asynchronously via Device.WiFi.EM.NaStaResponse.

Changes:

• Add UnassocStaQuery WebConfig subdoc with request decode + response encode.
• Add controller apply logic to call wifi_getNASta() and publish an async RBUS response event.
• Add an RBUS test utility (wifi_rbus) plus MXL-specific scaffolding for wifi_api2.

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
source/webconfig/wifi_webconfig.c	Registers the new webconfig_subdoc_type_nasta_query subdoc.
source/webconfig/wifi_webconfig_nasta.c	Implements NaSta query decode and response encode logic.
source/webconfig/Makefile.am	Adds wifi_webconfig_nasta.c to libwifi_webconfig sources.
source/test/wifi_rbus.c	New RBUS CLI tool to invoke X_RDKCENTRAL-COM_GetNaSta and print async response.
source/test/Makefile.am	Builds and links the new wifi_rbus test utility.
source/core/wifi_ctrl_wifiapi_handlers.c	Adds MXL-gated inclusion of extra wifi_api2 entries (currently problematic).
source/core/wifi_ctrl_webconfig.c	Adds webconfig_nasta_apply() to execute HAL calls and publish response event.
source/core/wifi_ctrl_rbus_handlers.c	Adds RBUS method handler get_NaSta and registers method/event elements.
source/core/wifi_ctrl_queue_handlers.c	Routes new queue subtype wifi_event_webconfig_set_data_nasta through webconfig decode/apply.
source/core/mxl_wifi_ctrl_wifiapi_handlers.h	Declares MXL wifi_api2 list macro and handler prototype (currently mismatched).
source/core/mxl_wifi_ctrl_wifiapi_handlers.c	Adds MXL handler implementation for wifi_getNASta (scaffolding).
source/core/Makefile.am	Conditionally builds MXL handler implementation when MXL_WIFI is enabled.
include/wifi_webconfig.h	Adds new subdoc/object types and decoded data fields for NaSta.
include/wifi_events.h	Adds new event subtype wifi_event_webconfig_set_data_nasta.
include/wifi_base.h	Adds NaSta RBUS method/event names and query/response structures and limits.
configure.ac	Adds AM_CONDITIONAL([MXL_WIFI], ...).
NOTICE	Adds MaxLinear 2026 notice entry.

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