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0314ee81a9
At present, the ATH12K_DEFAULT_NOISE_FLOOR (-95) is used to calculate RSSI value, providing an estimated noise floor value. Consequently, the RSSI value is also approximate. This works but however, using actual noise floor value will enable the reporting of the true RSSI value. The firmware possesses the necessary data to determine the actual noise floor. This data is provided to the host via the WMI event WMI_PDEV_RSSI_DBM_CONVERSION_PARAMS_INFO_EVENTID, which includes the runtime parameters needed for calculating the real noise floor in dBm. This event is triggered by the firmware during channel changes, temperature offset adjustments, and hardware chainmask modifications. The individual TLVs may not always be present in each event. For instance, temperature information might only appear if there is a change in offset due to temperature variation. Add support to handle and parse this WMI event. Use the received values to calculate and store the noise floor value. A subsequent change will use this noise floor value in the actual RSSI calculation. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00199-QCAHKSWPL_SILICONZ-1 Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com> Co-developed-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Signed-off-by: Aditya Kumar Singh <aditya.kumar.singh@oss.qualcomm.com> Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com> Link: https://patch.msgid.link/20250623-support_real_noise_floor-v2-1-974bbafa317e@oss.qualcomm.com Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.