From owner-freebsd-wireless@FreeBSD.ORG Thu Oct 10 03:03:17 2013 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 508F07F9 for ; Thu, 10 Oct 2013 03:03:17 +0000 (UTC) (envelope-from tx2023@gmail.com) Received: from mail-pd0-x230.google.com (mail-pd0-x230.google.com [IPv6:2607:f8b0:400e:c02::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 2A744288C for ; Thu, 10 Oct 2013 03:03:17 +0000 (UTC) Received: by mail-pd0-f176.google.com with SMTP id q10so1906312pdj.35 for ; Wed, 09 Oct 2013 20:03:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type:content-transfer-encoding; bh=d44DV1FHpwX4srKk0H1e76IlUmS+WBly6kIsDPU9MHM=; b=Dphrw1cGJa5El3aHczRXmdTl/jMOAvajwXz6jJzdStw1r4WcmS7iE1GZOMHzLG6csF 4PNzk2QYj93DCmzeXwIBOVRLCESagnGJPE7aQ4+ruZr8qp1IEbaWJLhTBXaT4kquWqQ6 K1WtGcY10x+dNUchsZ2dUHFGpHz1UXTP5vEODRyHqusrAER5Nka6N+Df9qdA0WfdXdSB DBnHVocM00s2I8cWlcAQvUdDJJs9Mqcg3clpDd7sfoJ0iZv/hgu9M0h5BUaDg3Zb+IEL 5N9fmeEwAgbHyuWOSDMIQocr0rlg5MLRDksaw3sOnP5m0F6RUIOsyXX1blEeqmDWGBWQ TMxQ== MIME-Version: 1.0 X-Received: by 10.66.157.165 with SMTP id wn5mt7175221pab.169.1381374196808; Wed, 09 Oct 2013 20:03:16 -0700 (PDT) Received: by 10.68.13.226 with HTTP; Wed, 9 Oct 2013 20:03:16 -0700 (PDT) In-Reply-To: References: Date: Thu, 10 Oct 2013 11:03:16 +0800 Message-ID: Subject: Re: Correlation values for Atheros adaptive noise immunity From: w Cc: "freebsd-wireless@freebsd.org" Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: quoted-printable X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Oct 2013 03:03:17 -0000 Update: looking at the patent again: http://www.freepatentsonline.com/7349503.html Note that bb_m1thres and bb_m2thres refer to normalized, self-correlated thresholds, bb_m2count_thr refers to the number of self-correlation values (wherein a typical count would not exceed 31), and bb_use_self_corr_low refers to an enabling bit value. (but the variables are still quite confusing.) ~ w ~ On Thu, Oct 10, 2013 at 10:12 AM, w wrote: > Yup, I read the patent. I have also read the Atheros documentation for > ANI (for a different hardware version but it says the operation is > similar). > > Are we able to see physical layer parameters like signal level / > correlation / channel state information, > or are they hidden inside the hardware? > > ~ w ~ > > > > On Thu, Oct 10, 2013 at 10:05 AM, Adrian Chadd wrote= : >> I'm not sure. I think it's a signal level. Have you read the ANI patent(= s) ? >> >> >> >> -adrian >> >> >> >> On 9 October 2013 19:04, w wrote: >>> >>> Is there any way I can printk the correlation values for ar5416_ani.c? >>> >>> I couldn=92t find the variable that contains the correlation value. >>> Line 267 of the ar5416_ani.c file says: >>> OS_REG_RMW_FIELD(ah, AR_PHY_SFCORR, >>> AR_PHY_SFCORR_M1_THRESH, m1Thresh[on]); >>> >>> I don=92t know what the variables mean or what the function means or >>> what data type the variables are because I want to printk them. >>> >>> References: >>> >>> >>> http://svnweb.freebsd.org/base/head/sys/dev/ath/ath_hal/ar5416/ar5416_a= ni.c?view=3Dmarkup >>> >>> https://wiki.freebsd.org/dev/ath_hal%284%29/AutomaticNoiseImmunity >>> >>> ~ w ~ >>> _______________________________________________ >>> freebsd-wireless@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-wireless >>> To unsubscribe, send any mail to >>> "freebsd-wireless-unsubscribe@freebsd.org" >> >>