From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 58E72C4332F for ; Thu, 17 Nov 2022 18:36:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234929AbiKQSgO (ORCPT ); Thu, 17 Nov 2022 13:36:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234569AbiKQSgN (ORCPT ); Thu, 17 Nov 2022 13:36:13 -0500 Received: from node.akkea.ca (li1434-30.members.linode.com [45.33.107.30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E34A72AD0 for ; Thu, 17 Nov 2022 10:36:11 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by node.akkea.ca (Postfix) with ESMTP id B9AD14E2010; Thu, 17 Nov 2022 18:36:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akkea.ca; s=mail; t=1668710171; bh=QH1NxnTNb5JLasdRqa1geaUeebnNj0Rki90yx8WK2m4=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=NG28lW2wHDOeLZAWpvd9PsFpclOpRQF3is9NpJY75OtnQOHlbDL7oPA0kwZBgOsVT BognxFRjSjnuIesu+Dgp1qLICQDOf2eVqBL/I7OOkQ+i0DmKrVIy/2m2vSo2v4zt/U Z2ljggzoSX4m1OQss6knOEiJJMD2Vo97h4utP+1c= X-Virus-Scanned: Debian amavisd-new at mail.akkea.ca Received: from node.akkea.ca ([127.0.0.1]) by localhost (mail.akkea.ca [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id hJA6Rza76L1t; Thu, 17 Nov 2022 18:36:11 +0000 (UTC) Received: from www.akkea.ca (localhost [127.0.0.1]) by node.akkea.ca (Postfix) with ESMTP id 1E72B4E2006; Thu, 17 Nov 2022 18:36:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=akkea.ca; s=mail; t=1668710171; bh=QH1NxnTNb5JLasdRqa1geaUeebnNj0Rki90yx8WK2m4=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=NG28lW2wHDOeLZAWpvd9PsFpclOpRQF3is9NpJY75OtnQOHlbDL7oPA0kwZBgOsVT BognxFRjSjnuIesu+Dgp1qLICQDOf2eVqBL/I7OOkQ+i0DmKrVIy/2m2vSo2v4zt/U Z2ljggzoSX4m1OQss6knOEiJJMD2Vo97h4utP+1c= MIME-Version: 1.0 Date: Thu, 17 Nov 2022 10:36:11 -0800 From: Angus Ainslie To: Arend Van Spriel Cc: Andy Green , Shengyu Qu , franky.lin@broadcom.com, linux-wireless@vger.kernel.org Subject: Re: AP6275 / bcm43752 pcie on mainline brcmf In-Reply-To: <18486ca8490.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> References: <08416710-655a-c87c-a599-3fe2563f7de4@warmcat.com> <18470a1e910.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <184720fc920.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <625f1d5d-e137-7ad7-96b9-92035e87df8b@broadcom.com> <638afa8e-a393-410c-3182-0d8e9b6da17d@warmcat.com> <7bf5884906b1abc30adebd3c915a3259@akkea.ca> <18486ca8490.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> Message-ID: X-Sender: angus@akkea.ca User-Agent: Roundcube Webmail/1.3.17 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On 2022-11-17 10:12, Arend Van Spriel wrote: > On November 17, 2022 5:06:25 PM Angus Ainslie wrote: > >> On 2022-11-17 04:01, Andy Green wrote: >>> On 11/17/22 09:23, Arend van Spriel wrote: >>>> On 11/16/2022 1:25 PM, Shengyu Qu wrote: >>>>> Got a new version of downstream driver and firmware here: >>>>> https://gitlab.com/rk3588_linux/linux/external/rkwifibt/-/tree/linux-5.10-gen-rkr3.4 >>>> >>>> Thanks for that. The firmware indeed seems to originate from >>>> Synaptics >>>> and this module can be found on wifi-alliance product finder: >>>> >>>> https://www.wi-fi.org/product-finder-results?sort_by=certified&sort_order=desc&keywords=ap6275 >>>> >>>> We have no known contacts there and they do not seem to have much >>>> interest in open-source. In that gitlab repo I see they are >>>> providing >>>> bcmdhd driver and I assume they consider that sufficient. >>>> >>>> Will see what I can do. First have to think on how to approach this >>>> failure to get most out of a debug effort. I do not have the module >>>> over here so we would need to go back and forth. The fact that the >>>> issue is seen on both SDIO and PCIe is somewhat encouraging. >>> >>> Yes it seems that at some point with some firmware, SDIO has worked >>> for, eg, Angus. And, it should work well with bchdhd (but that does >>> not seem to work for scan for me on v6.1-rc5 uplevel with the >>> firmware >>> load changed to use kernel apis; but the firmware has no timeout on >>> bcmdhd). So it doesn't feel a million miles away. >> >> This is the firmware we have been using for SDIO. It was sent to us >> directly by SparkLAN so not sure how it compares to other variants. >> >> https://source.puri.sm/Librem5/firmware-brcm43752-nonfree/-/tree/master/firmware/brcm > > It is a tad bit older: > > $ strings brcmfmac43752-sdio.bin | grep FW-TAG > 4362a2-roml/config_sdio_ampak_release_he > Version=18.35.387.23.7 (b328500@shgit) (wlan=r880297) > Date=2020-07-13T10:34:00Z FWID=01-f50fdff0 > Currently it's broken for hotspot mode but I haven't had the chance to see if that is FW or something further up the stack. Angus > Thanks, > Arend > >> >> Angus >> >>> I have the hw, and (paid) time to help with debugging this "pair of >>> hands" style. I'm also a little familiar with the kernel code and can >>> try jiggle things autonomously if you can prompt what is interesting. >>> >>> -Andy >>> >>>> Regards, >>>> Arend