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 BD57EC4167B for ; Mon, 27 Nov 2023 19:51:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232667AbjK0Tvt convert rfc822-to-8bit (ORCPT ); Mon, 27 Nov 2023 14:51:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37122 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229554AbjK0Tvq (ORCPT ); Mon, 27 Nov 2023 14:51:46 -0500 Received: from mail.andi.de1.cc (mail.andi.de1.cc [IPv6:2a02:c205:3004:2154::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99C55D60; Mon, 27 Nov 2023 11:51:51 -0800 (PST) Received: from p200301077700a9001a3da2fffebfd33a.dip0.t-ipconnect.de ([2003:107:7700:a900:1a3d:a2ff:febf:d33a] helo=aktux) by mail.andi.de1.cc with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1r7hdy-006mkA-4B; Mon, 27 Nov 2023 20:51:46 +0100 Date: Mon, 27 Nov 2023 20:51:44 +0100 From: Andreas Kemnade To: Adam Ford Cc: marcel@holtmann.org, johan.hedberg@gmail.com, luiz.dentz@gmail.com, johan@kernel.org, arnd@arndb.de, gregkh@linuxfoundation.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, tomi.valkeinen@ideasonboard.com, Tony Lindgren , =?UTF-8?B?UMOpdGVy?= Ujfalusi , robh@kernel.org Subject: Re: [RFC PATCH 0/3] bluetooth/gnss: GNSS support for TiWi chips Message-ID: <20231127205144.2137de38@aktux> In-Reply-To: References: <20231126191840.110564-1-andreas@kemnade.info> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 27 Nov 2023 08:03:24 -0600 Adam Ford wrote: > On Sun, Nov 26, 2023 at 1:47 PM Andreas Kemnade wrote: > > > > Some of these chips have GNSS support. In some vendor kernels > > a driver on top of misc/ti-st can be found providing a /dev/tigps > > device which speaks the secretive Air Independent Interface (AI2) protocol. > > Implement something comparable as a GNSS interface. > > > > With some userspace tools a proof-of-concept can be shown. A position > > can be successfully read out. Basic properties of the protocol are > > understood. > > > > This was tested on the Epson Moverio BT-200. > > Can you tell me which WiLink chip this uses? > > I'd like to try it on the WL1283, but I want to understand which > WiLink chips you're targeting. > I think, it is a WL1283 here, too. If you want to play around with it now: - set the devicetree node name to bluetooth-gnss - for testing you can use the read-gps program at https://github.com/akemnade/bt200tools Regards, Andreas