From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: Question: PCM short and long sync formats Date: Mon, 26 Mar 2012 14:33:05 +0100 Message-ID: <20120326133305.GR3098@opensource.wolfsonmicro.com> References: <4F69ABB0.2000706@linux.intel.com> <20120321115146.GC3226@opensource.wolfsonmicro.com> <4F7031AD.3090202@linux.intel.com> <20120326102650.GC3098@opensource.wolfsonmicro.com> <4F705BF3.5080905@linux.intel.com> <20120326120853.GP3098@opensource.wolfsonmicro.com> <4F706F47.2090306@linux.intel.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============4370813343356562740==" Return-path: Received: from opensource.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id 77E24249DF for ; Mon, 26 Mar 2012 15:31:31 +0200 (CEST) In-Reply-To: <4F706F47.2090306@linux.intel.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: Omair Mohammed Abdullah Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org --===============4370813343356562740== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="nQUlLD2FJeKEtFpv" Content-Disposition: inline --nQUlLD2FJeKEtFpv Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Mar 26, 2012 at 06:59:43PM +0530, Omair Mohammed Abdullah wrote: > On Monday 26 March 2012 05:38 PM, Mark Brown wrote: > >Sorry, that's not really clarifying things. It looks like "long frame > >sync" is just I2S but presumably there's some difference? > Yes, in I2S mode, according to the spec I have, the frame sync leads > the MSB of the data by 1 bit clock cycle. Whereas the 'long frame > sync' mode starts with the MSB of the data. This is probably left justified mode but I'm really not clear what your question is here. Please ask a *specific* question, with reference to what you find unclear in the code. --nQUlLD2FJeKEtFpv Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJPcG/uAAoJEBus8iNuMP3db8MP/35eviDDChiQltWK2xkj7I3H w3uezI7vNAMXEKWHkAtynlAa9H9Uoqp652Sl99H/e2kGvIxHsLTQrdl3eLo5o2h7 7gh+IBBB9ynSbg9MILuV5z9Dn0e+zalfGFLWQ3TXLseWtwd1IjRU6HN+pomhLr9M MsTvYRt6LPzapIN80fq/BIHUZ1ltAEBxHSLjWAE5+dfmKBaqSbrITTh8fuAKq1+i nfS9lE6Fn2H1AxMIXtNd+Nh5hWmVF7pm/MWmPKNhRIJF1T5voaJYX5U165LoeT7f oWYB9td6YwyQMgTohPKztJxzvaWjJUUbK4YPyFg37je7xTrviUrSrbWIftqEm+tO Y3/iKTrN2ML69/JX3MhBTEe9B3uAtNr8owQGAp3BrKlz8EMTWN+rWaUp66MLBS/n J+IriwIm6ysj41UMb96/S8Y+dnj5D1Tvuj1Qldg4YmQWrU+/4y6qnRfbrLs/H8Tl m2GbjFmQUzdWplQzolb4Mn5GP1KoULgakEzhVICI28n6IwIIQ3+prF67tlvMCFUr UWCVuC81IQRaiH/zNWxA8fWNltk4hk+Nt+e2ohajDRryYdmoZ3gCeq8cpW/rwinf t3WklAJihHA3H+I8EzD+H7we81xFpb+ucAPII3qprOz9ZzxDKKfTcZleBZPwjhUM 4+Qtxwtpj4s+NTLXMwDn =Qxxx -----END PGP SIGNATURE----- --nQUlLD2FJeKEtFpv-- --===============4370813343356562740== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============4370813343356562740==--