From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michele Da Rold Subject: Re: wm8974 and sam9g45 atmel Date: Fri, 17 Jun 2011 17:03:01 +0200 Message-ID: <4DFB6CA5.9010202@ecsproject.com> References: <4DF0E2B4.7040401@ecsproject.com> <20110610103118.GA26441@sirena.org.uk> <4DFB1CEA.2060308@ecsproject.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from cp-out8.libero.it (cp-out8.libero.it [212.52.84.108]) by alsa0.perex.cz (Postfix) with ESMTP id 7192D24501 for ; Fri, 17 Jun 2011 17:03:12 +0200 (CEST) In-Reply-To: <4DFB1CEA.2060308@ecsproject.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Mark Brown Cc: dp@opensource.wolfsonmicro.com, alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Il 17/06/2011 11:22, Michele Da Rold ha scritto: > Il 10/06/2011 12:31, Mark Brown ha scritto: >> On Thu, Jun 09, 2011 at 05:11:48PM +0200, Michele Da Rold wrote: >>> Hello everybody, I'm starting a new development with a Atmel SAM9G45 and >>> a WM8974. >> >> Please always CC maintainers on mails - traffic on the mailing list is >> easily lost. >> >>> I'm using kernel 2.6.33.2 >> >> This kernel is *very* old - I would strongly recommend updating to a >> more current kernel if you're looking for support. >> > Updated to 2.6.39.1! >>> Putting some dedug messagge the driver not call the function >>> "set_bias_level", and call the mute function with mute=0. >>> Testing the MCLK signal I not see any clock on pin because I never call >>> clk_enable!! >> >> Have you routed audio from the DAI to an output using the ALSA controls? >> If you haven't connected an output path up then the kernel won't power >> anything on. >> > Now I have configured wm8974 like slave, the ssc generate BCLK e FRAME > signal and MCLK but I haven't output (I'm doing a playback) > I'm new to alsa development so I haven't understand how to route audio > to DAI from output, could you help me? > UPDATE!!!!!!! Using amixer I have put to on the numid=61,iface=MIXER,name='Speaker Mixer PCM Playback Switch' ON numid=46,iface=MIXER,name='Speaker Playback Volume' 63 (max value) and then the playback start but at speaker output I have only noise no sound!! I have another question: it's better to use wm8974 like master? because I have see that the atmel ssc is not so good generating clocks.... Thank you Michele > Best regards > > _______________________________________________ >> Alsa-devel mailing list >> Alsa-devel@alsa-project.org >> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > >