[PATCH v2 2/2] ath10k: allow dynamic SAR power limits to be configured

Kalle Valo kvalo at codeaurora.org
Tue Sep 8 01:55:45 EDT 2020

Wen Gong <wgong at codeaurora.org> wrote:

> Add support for a vendor command for STATION, the command
> QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS which is already defined in
> git://w1.fi/hostap.git (src/command/qca-vendor.h). This allows user
> space to configure power limits for 2.4 GHz and 5 GHz bands.
> ath10k set pdev parameter WMI_PDEV_PARAM_TXPOWER_LIMIT2G and
> WMI_PDEV_PARAM_TXPOWER_LIMIT5G to firmware, the 2 value will
> be used as one input source to affect the tx power.
> When QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS set to ath10k, it will
> be saved the 2.4G and 5G limit value, If STATION is connected meanwhile,
> then the 2.4G and 5G WMI command will be set to firmware, otherwise
> it will not set to firmware at this moment. When STATION connect
> next time, it will set to firmware.
> Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00029.
> Signed-off-by: Wen Gong <wgong at codeaurora.org>
> Signed-off-by: Kalle Valo <kvalo at codeaurora.org>

The plan is to have a common API for SAR limits, not use vendor API.

Patch set to Rejected.



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