CCA Threshold

[jeter1112]

Hi, I wanted to change the CCA threshold of ar9271.
I modified the ar9002_phy.h.

#define AR_PHY_CCA_NOM_VAL_9271_2GHZ -20
#define AR_PHY_CCA_MIN_GOOD_VAL_9271_2GHZ -27
#define AR_PHY_CCA_MAX_GOOD_VAL_9271_2GHZ -16

However, it seems nothing to happen. I want to know how to change CCA threshold correctly.

[erikarn]

Hi, Thats for NF calibration. There's a separate CCA register which programs in the noise floor value. It's done in the PHY init path.

…

-adrian

On Fri, 27 Jul 2018 at 07:10, jeter ***@***.***> wrote: Hi, I wanted to change the CCA threshold of ar9271. I modified the ar9002_phy.h. *#define AR_PHY_CCA_NOM_VAL_9271_2GHZ -20 #define AR_PHY_CCA_MIN_GOOD_VAL_9271_2GHZ -27 #define AR_PHY_CCA_MAX_GOOD_VAL_9271_2GHZ -16* However, it seems nothing to happen. I want to know how to change CCA threshold correctly. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#148>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABGl7TZJxiHvsIPglQcnjNi_ugHMK094ks5uKx9ygaJpZM4VjkPB> .

[jeter1112]

Which register represents CCA register?

[rodizio1]

@jeter1112 Not sure if it's still relevant for you, but here is a patch that allows for changing the threshold via module parameter:
https://github.com/bortek/EZ-WifiBroadcast/blob/develop/kernel/linux-4.9.28-ath9k_htc-misc.patch