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 X-Spam-Level: X-Spam-Status: No, score=-7.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F812C169C4 for ; Fri, 8 Feb 2019 15:22:43 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DBD4F20855 for ; Fri, 8 Feb 2019 15:22:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Aqr0wIxN" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DBD4F20855 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=atomide.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=dTOuM2cfZoRcDzITKwQGPMBcR0ebmaANmo7JOumUsdE=; b=Aqr0wIxN/TclkY 6JNKFsdpPp38KACw5vjaiwzEKStWt/xtCTKo9wlLwLzrOL+TlX5QgaMmrJI6bzZKZaVNWcm+8f8Rc k722GTH2VE1C42/y0HUT/1CYVhdtQufUoFefaho+Tr0hUTVB+mLxbWI9Yfmov9nW7RT7k4lWQmLwc /jnFG6TZkuT6KDlY6oDfvTA/u5UeKsQGikI6W+FrFothgv4aJepedzi+u5MNAtoUlgTwFdJCrW1l/ yTPxPXPoycwEpHINYax2DrqK74m2kL8Y76X8mvFxr/IQexGxx1aXHnInIpVCPMWwIdaNlY+jKA7qv +mo/M4/mdsqo6uuQBcfA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gs7zE-0000Ha-Qe; Fri, 08 Feb 2019 15:22:40 +0000 Received: from muru.com ([72.249.23.125]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gs7z2-00006S-Ss for linux-arm-kernel@lists.infradead.org; Fri, 08 Feb 2019 15:22:30 +0000 Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id 6C3E980CC; Fri, 8 Feb 2019 15:22:36 +0000 (UTC) Date: Fri, 8 Feb 2019 07:22:24 -0800 From: Tony Lindgren To: Pavel Machek Subject: Re: Droid 4 modem support in kernel & ofono Message-ID: <20190208152224.GG5720@atomide.com> References: <20190201203616.GA2087@amd> <20190201205032.GF5720@atomide.com> <20190207221745.GA12219@amd> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190207221745.GA12219@amd> User-Agent: Mutt/1.11.2 (2019-01-07) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190208_072229_024763_5DA6EE3D X-CRM114-Status: GOOD ( 20.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mpartap@gmx.net, merlijn@wizzup.org, sre@kernel.org, kernel list , nekit1000@gmail.com, ofono@ofono.org, linux-omap@vger.kernel.org, linux-arm-kernel Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org * Pavel Machek [190207 22:18]: > Hi! > > > > Ok, so I got calls and smses somehow working in kernel&ofono ... which > > > is really all I need. > > > > Nice :) > > > > I think the SIM card reading and writing should be doable > > using dlci10 /dev/motmdm10 for AT+CRSM calls.. > > Might be. Sorry, this is outside of my area of interest, because LTE > would not be on usable frequencies, anyway. Oh I did not mean LTE, I meant for general SIM access for ofono for pin codes etc. Anyways, if anybody needs the sim, it should be available at /dev/motmdm10. > > > I pushed the tree to git@github.com:pavelmachek/ofono.git , branch > > > d4... But I had to do some "rather interesting" hacks. D4 modem > > > expects packets and current kernel drivers rely on write() boundaries > > > and flush(). .. which is a bit of problem for in ofonod, as it expects > > > to work with bytestream with no explicit packet boundaries. > > > > > > However D4 still uses normal AT commands, so... it would be good to be > > > able to use AT parsing framework in ofono. > > > > > > I believe easiest solution would be to automatically do the packet > > > splitting in kernel, it should be as easy as splitting on \r and > > > ^Z. (Currently packets are only generated when \r or ^Z is seen on > > > write boundary, but that does not work well for ofono). > > > > OK yeah it's worth trying. I hit that issue too with the > > flush needed for droid4-sms-tools scripts. And the traffic > > we're seeing is minimal and AFAIK there's no network port > > for ts27010. And SMS messages are PDU encoded anyways. > > > > Hmm should we do it for \r\n and \r? Otherwise the \n > > will be left out of the packet :) > > I guess splitting on \n makes sense, yes. > > Ofono normally uses just \r. Translating it to \r\n in kernel (ttys > already do that) would be super nice, but I think this is easy enough > to handle in ofono. Do you have some simple test case with printf? This test case works just fine already: $ printf "AT+CFUN=1\rAT+SCRN=0\r" > /dev/motmdm1 But maybe the modem behaves in a different way for different dlci.. So a minimal test case would be good to have :) Regards, Tony _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel