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Date:      Fri, 3 Aug 2012 10:11:06 +0800
From:      "Wright, Brett" <Brett.Wright@cooperindustries.com>
To:        "Adrian Chadd" <adrian@freebsd.org>
Cc:        freebsd-wireless@freebsd.org
Subject:   RE: Atheros DFS radar detection
Message-ID:  <475A4E02EFF4724A9E58F55A56AC1316063F7161@APEVS1.ap.ci.root>
In-Reply-To: <CAJ-Vmo=hiNyqrXjCJZKa2ixuAm5d%2BW3qd81CR85ks3cEB46ULg@mail.gmail.com>
References:  <475A4E02EFF4724A9E58F55A56AC1316063B3323@APEVS1.ap.ci.root><CAJ-VmomJOuu334UamvG7=t2oDyq-UNwdCzEUJ0ytT0REKfFxdA@mail.gmail.com><475A4E02EFF4724A9E58F55A56AC1316063B35EB@APEVS1.ap.ci.root><CAJ-Vmo=BXmO9pOPvqhcg_ZFWfgehb3xjrkokQAqAi2hBHS=jcg@mail.gmail.com><CAJ-VmomRhPnw9uLZXGSd-nK1abLuupLRw24J=rS4SGFJXieiLw@mail.gmail.com><475A4E02EFF4724A9E58F55A56AC1316063D6752@APEVS1.ap.ci.root><CAJ-Vmo=8X5QW00jrZ_3qmSpKYyiKb%2B5Lcs7zE1mhnHjH3cM5=Q@mail.gmail.com><475A4E02EFF4724A9E58F55A56AC1316063D7105@APEVS1.ap.ci.root><CAJ-VmonMG-3rE9FqzjYTR8rVn4iOZpJGZTEh9hxTr-XR7Wo23g@mail.gmail.com><475A4E02EFF4724A9E58F55A56AC1316063F6E27@APEVS1.ap.ci.root><CAJ-Vmo=M59o1xMGJFFR4poju7BSnt6=uoCNsrGpQmTOUS24dpQ@mail.gmail.com><475A4E02EFF4724A9E58F55A56AC1316063F6E74@APEVS1.ap.ci.root> <CAJ-Vmo=hiNyqrXjCJZKa2ixuAm5d%2BW3qd81CR85ks3cEB46ULg@mail.gmail.com>

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> -----Original Message-----
> From: adrian.chadd@gmail.com [mailto:adrian.chadd@gmail.com] On Behalf
> Of Adrian Chadd
> Sent: Friday, 3 August 2012 11:16 AM
> To: Wright, Brett
> Cc: freebsd-wireless@freebsd.org
> Subject: Re: Atheros DFS radar detection
>=20
> How've you been testing with diversity turned off?
>=20
> It looks like the FreeBSD HAL doesn't have the bits to disable fast
> diversity. Let me go hunt down what the code is and try it out.

#define AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV 0x2000
#define AR_PHY_CCK_DETECT 0xA208

I am turning diversity off by clearing
AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV bit in register
AR_PHY_CCK_DETECT (not sure if the CCK labeling indicates this stuff is
invalid for an 802.11a only radio)?=20

Also setting the rx antenna using:
#define AR_DEF_ANTENNA 0x8058
The above register and setting bits 0..2 to either 1 or 2 (for main or
aux)

>=20
> Which legacy NICs are you using too? I can give it a whirl locally and
> see if I see the same issues as you.
>=20

I am using AR5213A on a ubiquity SR5.

Thanks
Brett




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