From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH] ALSA: pcm - introduce soc_delay Date: Mon, 23 Jul 2012 12:23:04 +0100 Message-ID: <20120723112303.GO4435@opensource.wolfsonmicro.com> References: <1343037997-16689-1-git-send-email-vinod.koul@linux.intel.com> <1343039998.1726.4833.camel@vkoul-udesk3> <1343042227.1726.4899.camel@vkoul-udesk3> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============2943664818793380709==" Return-path: Received: from opensource.wolfsonmicro.com (opensource.wolfsonmicro.com [80.75.67.52]) by alsa0.perex.cz (Postfix) with ESMTP id 622B0260324 for ; Mon, 23 Jul 2012 13:23:03 +0200 (CEST) In-Reply-To: <1343042227.1726.4899.camel@vkoul-udesk3> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Vinod Koul Cc: tiwai@suse.de, Jassi Brar , alsa-devel@alsa-project.org, Jassi Brar , lrg@ti.com List-Id: alsa-devel@alsa-project.org --===============2943664818793380709== Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="GYaKytDE8aa4+VVK" Content-Disposition: inline --GYaKytDE8aa4+VVK Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Jul 23, 2012 at 04:47:07PM +0530, Vinod Koul wrote: > a) constant delay in DMA FIFO, aptly represented by delay > b) dynamic buffering on input DMA at DSP and during post-processing. > This is before the circular DMA at output, and this patch attempts to > represent this buffering. The delay in the runtime can vary too, in ASoC it's currently updated every time we call pointer(). --GYaKytDE8aa4+VVK Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJQDTPfAAoJEBus8iNuMP3dpKUP/RQQ8aIc0bxObYj3ybHtuQgc 15G4RvxbVon6+9TfAs7krmdmeYYXEa7zNE37qd6y44es4pxuIv7WcoYtsNwyW0Wk feBr7VYRA9ZNI93XWn/IWLRtcj6kA2jZUNh+KAOM3labW8f3KpeEbFbptoP2nbkq 5K10YAcDm3ABS8pzVm6ZwSlHDODSY5yPv3MIGtiU0zM/8rlwgM+b5DMd6UEqY07I 0dHtZxHUrqMUfN5izVNKirrfutWtHxC570+anSOZ+iwUyTroMeV7ne6RVimJH49D LTLUcq+jxAHxG2C2rTVJXO/VCL0CuXXwzTDdcjyhbgWlt/o6Te2XLuzBLdmAB9eu yGL0JVdDAdTpoBJbxo0zJpWjmuZHskwhkK7ljoF+eljg54RyzDvexRuiLIRV0uUW YZdmyxrKu3lujD9YxQSazbdkerHCwH4n3lDSomgqdQP+pumCzeLhGAR1BfYNSBIa UefUNTuW99eojtKVp7Eu5BjnNurJPdxQgs3atTKy1VIoEdHfZvTdOhoOhGDJvoJm xcY3YGXMqQThFle1sbRCqu6QwDf03Cb0rVP1Kzd031Bkph1VPQ+b7HG0X6mr08X/ pFmkPwYSws62F3zIt4Dwa3eB0hg479VEOsFI/FZa/MJhiFOpCnZv/KEQy55mkWNz LJWBiBH7v0TBJxu48sUO =8F0+ -----END PGP SIGNATURE----- --GYaKytDE8aa4+VVK-- --===============2943664818793380709== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline --===============2943664818793380709==--