[PATCH v5 3/4] wifi: ath12k: add factory test mode support

[Kalle Valo]

Aaradhana Sahu <quic_aarasahu at quicinc.com> wrote:

> Add support to process factory test mode commands(FTM) for calibration.
> By default firmware start with MISSION mode and to process the FTM commands
> firmware needs to be restarted in FTM mode using module parameter ftm_mode.
> The pre-request is all the radios should be down before starting the test.
> 
> All ath12k test mode interface related commands specified in enum
> ath_tm_cmd.
> 
> When start command ATH_TM_CMD_TESTMODE_START is received, ar state
> is set to test Mode and FTM daemon sends test mode command to wifi
> driver via cfg80211. Wifi driver sends these command to firmware as
> wmi events. If it is segmented commands it will be broken down into
> multiple segments and encoded with TLV header else it is sent to
> firmware as it is.
> 
> Firmware response via UTF events, wifi driver creates skb and send
> to cfg80211, cfg80211 sends firmware response to FTM daemon via
> netlink message.
> 
> Command to boot in ftm mode
> insmod ath12k ftm_mode=1
> 
> Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1
> 
> Signed-off-by: Aaradhana Sahu <quic_aarasahu at quicinc.com>
> Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>
> Signed-off-by: Kalle Valo <quic_kvalo at quicinc.com>

Now that the wow patchset was applied I saw a new warning:

drivers/net/wireless/ath/ath12k/wow.c: In function 'ath12k_wow_op_resume':
drivers/net/wireless/ath/ath12k/wow.c:982:17: warning: enumeration value 'ATH12K_HW_STATE_TM' not handled in switch [-Wswitch]

I fixed it adding the new state to ath12k_wow_op_resume(), please check:

https://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git/commit/?h=pending&id=882f310572b27564412e1d6158d1e9709861b7a7

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20240624095305.37189-4-quic_aarasahu@quicinc.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches