From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932422AbWEUSgK (ORCPT ); Sun, 21 May 2006 14:36:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932423AbWEUSgK (ORCPT ); Sun, 21 May 2006 14:36:10 -0400 Received: from gprs189-60.eurotel.cz ([160.218.189.60]:13970 "EHLO amd.ucw.cz") by vger.kernel.org with ESMTP id S932422AbWEUSgJ (ORCPT ); Sun, 21 May 2006 14:36:09 -0400 Date: Sun, 21 May 2006 20:35:21 +0200 From: Pavel Machek To: Harald Welte Cc: Florent Thiery , openezx-devel@lists.gnumonks.org, linux-kernel@vger.kernel.org Subject: Re: How should Touchscreen Input Drives behave (OpenEZX pcap_ts) Message-ID: <20060521183521.GD20580@elf.ucw.cz> References: <20060518070700.GT17897@sunbeam.de.gnumonks.org> <446C5780.7050608@int-evry.fr> <20060518143824.GC17897@sunbeam.de.gnumonks.org> <20060518231613.GA19731@elf.ucw.cz> <20060518232737.GL17897@sunbeam.de.gnumonks.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060518232737.GL17897@sunbeam.de.gnumonks.org> X-Warning: Reading this can be dangerous to your mental health. User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > > > Another one: you say you're workin on building X-e. Are you talking about kdrive? > > > > > > I have no idea, just replaying the package names that OE uses ;) > > > > > > I now have Xfbdev running on the A780. Unfortunately due to some > > > strange black magic, the ts driver ceases to receive interrupts as soon > > > as X is started. reproducible. The same happens with ts_test. > > > > Just poll the touchscreen, then... I have similar problems with > > battery hardware and touchscreen sharing ADCs on collie... but > > hopefully Motorola did not do _that_ mistake. > > oh yes, the ADC is multiplexed with dozens (well, actually 14) inputs. > But you can actually very carefully prorgram which ones to read into > what register, and have you notified once completed. > > Oh, and to make it even better: The ADC is used by two processors, by > the Application Processor (that runs linux) and the Baseband Processor > ;) > > I've now fixed that interrupt problem, but I have some other issues in > the state machine that is required for alternating pressure/xy reads. > > Confident that those things can be fixed, though. Okay, looks like collie is clean&simple hardware compared to *that*. Asymetric MultiProcessing cellphone... Is there any work going on on higher levels of stack? gomunicator for user interface... Something for multiplexing AT commands? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html