From patchwork Sun Nov 16 10:12:48 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Machek X-Patchwork-Id: 5313201 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id AA2C19F1E1 for ; Sun, 16 Nov 2014 10:15:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id AAAFA20173 for ; Sun, 16 Nov 2014 10:15:27 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7340C20155 for ; Sun, 16 Nov 2014 10:15:26 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XpwpX-00082Q-NI; Sun, 16 Nov 2014 10:13:15 +0000 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XpwpT-0007xq-OY for linux-arm-kernel@lists.infradead.org; Sun, 16 Nov 2014 10:13:12 +0000 Received: by atrey.karlin.mff.cuni.cz (Postfix, from userid 512) id BD5C08183A; Sun, 16 Nov 2014 11:12:48 +0100 (CET) Date: Sun, 16 Nov 2014 11:12:48 +0100 From: Pavel Machek To: Aaro Koskinen Subject: Re: N900 modem support in 3.18-rc1 Message-ID: <20141116101248.GA32483@amd> References: <201411052137.31452@pali> <20141105203918.GA29199@amd> <201411052206.05379@pali> <20141105220359.GA32052@amd> <20141105234555.GA7097@earth.universe> <20141106124711.GA26944@amd> <20141106180335.GA21513@earth.universe> <20141113162155.GA8512@xo-6d-61-c0.localdomain> <20141113174534.GO26481@atomide.com> <20141113181803.GB984@fuloong-minipc.musicnaut.iki.fi> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20141113181803.GB984@fuloong-minipc.musicnaut.iki.fi> User-Agent: Mutt/1.5.23 (2014-03-12) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141116_021312_180027_A2DA33E2 X-CRM114-Status: GOOD ( 23.58 ) X-Spam-Score: -2.3 (--) Cc: khilman@kernel.org, Tony Lindgren , kernel list , Sebastian Reichel , Pali Roh?r , linux-omap@vger.kernel.org, freemangordon@abv.bg, linux-arm-kernel X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_LOW, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On Thu 2014-11-13 20:18:04, Aaro Koskinen wrote: > Hi, > > On Thu, Nov 13, 2014 at 09:45:36AM -0800, Tony Lindgren wrote: > > * Pavel Machek [141113 08:23]: > > > OTOH ofono seems pretty reasonable. So I played a bit, and result > > > is python/pygtk gui which can receive an sms, initiate a call, and > > > report missed call. If someone wants to play, source is at > > > > > > https://gitorious.org/tui/tui/source/b6141107e9341a1412720aed4b0d09143dfa2f4e:ofone > > > > Pavel, care to fill in the the following type patch with some > > instructions in the description now that you got it working? > > Could we even have some "permanent" instructions under Documentation/? Something like this? commit 375d8d9f17433ade6afae91d4f34e170f0af04c4 Author: Pavel Date: Sun Nov 16 11:10:59 2014 +0100 Add basic documentation for n900 testing. Signed-off-by: Pavel Machek diff --git a/Documentation/cellphones.txt b/Documentation/cellphones.txt new file mode 100644 index 0000000..d7e8e7a --- /dev/null +++ b/Documentation/cellphones.txt @@ -0,0 +1,90 @@ +Running Linux on Cellphones +=========================== + +At this moment (2014), there are no cellphones completely supported by +mainline kernel. Another problem is lack of hackable userspace to run +on cellphone, even when kernel support is available. + +Openmoko was first phone running Linux with X. GSM support there was +based on freesmartphone.org daemons. + +Sony has project to merge kernel support for Xperia Z1. + +Nokia N900 +---------- + +Nokia N900 orignally shipped with Maemo-based userland, which is close +enough to GNU/X/apt based Linux; key components communicate using dbus +and application can be written in pygtk. Kernel patches were +relatively clean, and the core stuff is merged, unfortunately there's +quite a lot of non-core stuff and pieces of userland are closed +source; including some critical support such as bridge between CPU and +modem for voice calls. + +Unfortunately, that means that kernel development is hard, because it +is non-trivial to test all the various devices in the phone due to +lack of suitable userspace and userspace development is hard, because +there's no suitable kernel to work with. + +Here are instructions for getting usable userspace for kernel testing, +and suggestions for some tests. Setting up nfsroot (needs non-mainline +patch) is strongly recommended for development. + +I'm using Debian 7 for testing/development. It works well including +touchscreen and X support, as of 3.18-rc1. Instructions are here: + +https://wiki.debian.org/n900-wheezy-armhf +https://wiki.debian.org/MaemoAndSqueeze + +Following packages are useful on N900: + +libts-bin evtest ntpdate module-init-tools udev netbase ifupdown openssh-server +locales whiptail less mpg123 mplayer ofono gcc strace mdbus2 + +This calibrates display to usable state on recent kernel and Debian 7: + +DISPLAY=:0.0 xinput --set-prop --type=float 8 115 1.10 0.00 -0.05 0.00 1.18 -0.10 0.00 0.00 1.00 +DISPLAY=:0.0 xinput --set-prop --type=int 8 249 0 1 + +# Test vibrations +echo 5 | fftest /dev/input/event2 + +# Test LEDs +VAL=30 +echo $VAL > lp5523\:kb1/brightness +echo $VAL > lp5523\:kb1/brightness +echo $VAL > lp5523\:kb2/brightness +echo $VAL > lp5523\:kb3/brightness +echo $VAL > lp5523\:kb4/brightness +echo $VAL > lp5523\:kb5/brightness +echo $VAL > lp5523\:kb6/brightness +echo $VAL > lp5523\:r/brightness +echo $VAL > lp5523\:g/brightness +echo $VAL > lp5523\:b/brightness +echo 100 > /sys/class/backlight/acx565akm/brightness +echo mem > /sys/power/state + +# Display battery/charging state +cd /sys/bus/i2c/drivers/bq27x00-battery/2-0055/power_supply/bq27200-0 +grep -r . . + +# Start up ofono in debug mode +rmdir /dev/cmt +ln -s /sys/bus/hsi/devices/n900-modem/ /dev/cmt +killall ofonod +sleep .1 +ofonod --nodetach --debug & + +# Test modem works +# enable the modem +mdbus2 -s org.ofono /n900_0 org.ofono.Modem.SetProperty Powered true +# enable modem's RF parts +mdbus2 -s org.ofono /n900_0 org.ofono.Modem.SetProperty Online true +# scan for available networks (takes some time) +mdbus2 -s org.ofono /n900_0 org.ofono.NetworkRegistration.Scan + + + Good luck! + + Pavel +