Return-path: Received: from mail-wg0-f45.google.com ([74.125.82.45]:38505 "EHLO mail-wg0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933036Ab3DJHWu (ORCPT ); Wed, 10 Apr 2013 03:22:50 -0400 Received: by mail-wg0-f45.google.com with SMTP id l18so125580wgh.0 for ; Wed, 10 Apr 2013 00:22:49 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <1365574412.20937.YahooMailNeo@web193505.mail.sg3.yahoo.com> References: <515A0847.7000306@gmail.com> <1365088789.89181.YahooMailNeo@web193504.mail.sg3.yahoo.com> <1365131280.68622.YahooMailNeo@web193506.mail.sg3.yahoo.com> <1365148844.61162.YahooMailNeo@web193503.mail.sg3.yahoo.com> <1365152761.13005.YahooMailNeo@web193505.mail.sg3.yahoo.com> <20830.46610.23754.783231@gargle.gargle.HOWL> <1365175482.75704.YahooMailNeo@web193505.mail.sg3.yahoo.com> <1365346495.79596.YahooMailNeo@web193506.mail.sg3.yahoo.com> <1365561451.4973.YahooMailNeo@web193504.mail.sg3.yahoo.com> <1365574412.20937.YahooMailNeo@web193505.mail.sg3.yahoo.com> Date: Wed, 10 Apr 2013 00:22:49 -0700 Message-ID: (sfid-20130410_092253_196196_238F39A9) Subject: Re: [ath9k-devel] AR9287 ; 2-wire coexistence expected behavior From: Adrian Chadd To: sandeep suresh Cc: Sujith Manoharan , ath9k-devel , "linux-wireless@vger.kernel.org" Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-wireless-owner@vger.kernel.org List-ID: No, wifi stomping occurs with both 2-wire and 3-wire. BT_PRIORITY just gives the MAC the ability to tell the difference between high priority TX and any bt activity requiring the air, so the MAC can then choose a weight based on differnet kinds of BT inputs. If all you have is two wire, then you don't get separate weight table entries for different kinds of BT transmissions. adrian On 9 April 2013 23:13, sandeep suresh wrote: > Hello Mr.Adrian, > Thanks for your response. I understand the following: Please correct if > I am wrong. > 1. With WLAN_ACTIVE and BT_ACTIVE, the wireless medium is managed between BT > and WLAN without stomping the traffic. > 2. With WLAN_ACTIVE, BT_ACTIVE and BT_PRIORITY, WiFI traffic stomping is > possible. > > Regards > Sandeep. > > From: Adrian Chadd > To: sandeep suresh > Cc: Sujith Manoharan ; ath9k-devel > ; "linux-wireless@vger.kernel.org" > > Sent: Wednesday, 10 April 2013 11:07 AM > > Subject: Re: [ath9k-devel] AR9287 ; 2-wire coexistence expected behavior > > Right, but same deal - if it asserts the line, it should stomp wifi > transmission in your particular scheme. > > > > adrian > > > On 9 April 2013 19:37, sandeep suresh wrote: >> Hello Mr.Adrian, >> Thanks for your response. During googling, I had come across the >> following 2-wire coexistence solution from owl modules. >> >> >> http://support.connectblue.com/display/PRODWLAN/cB-OWL22x+Bluetooth+co-existence+application+note >> According to this application note, for 2-wire coexistence, WLAN_ACTIVE >> and >> BT_PRIORITY signals are used rather than WLAN_ACTIVE and BT_ACTIVE. What >> is >> your opinion on this? And as I understand owl modules are based on Atheros >> chipsets. >> >> Regards >> Sandeep. >> >> From: Adrian Chadd >> To: sandeep suresh >> Cc: Sujith Manoharan ; ath9k-devel >> ; "linux-wireless@vger.kernel.org" >> >> Sent: Wednesday, 10 April 2013 4:30 AM >> >> Subject: Re: [ath9k-devel] AR9287 ; 2-wire coexistence expected behavior >> >> Hi, >> >> Yes, "WLAN_ACTIVE" here is just both TX and RX activity. >> >> So if it were working, that would stay low. >> >> >> >> adrian >> >> > >