From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ciao.gmane.org (main.gmane.org [80.91.229.2]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 839E9DDE0E for ; Thu, 19 Jul 2007 06:01:41 +1000 (EST) Received: from list by ciao.gmane.org with local (Exim 4.43) id 1IBFi9-0000Ie-28 for linuxppc-embedded@ozlabs.org; Wed, 18 Jul 2007 22:01:25 +0200 Received: from dslb-084-056-181-006.pools.arcor-ip.net ([84.56.181.6]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 18 Jul 2007 22:01:25 +0200 Received: from mls.JOFT by dslb-084-056-181-006.pools.arcor-ip.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 18 Jul 2007 22:01:25 +0200 To: linuxppc-embedded@ozlabs.org From: Joachim =?ISO-8859-1?Q?F=F6rster?= Subject: Re: can anyone help me to test my ac97 driver Date: Wed, 18 Jul 2007 22:01:08 +0200 Message-ID: <1184788868.18032.22.camel@localhost> References: <165516780.1952051184304174471.JavaMail.coremail@bj163app130.163.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-on8rfS4l9ztJ8DY3ppxn" In-Reply-To: <165516780.1952051184304174471.JavaMail.coremail@bj163app130.163.com> Sender: news List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , --=-on8rfS4l9ztJ8DY3ppxn Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Hi silicom, On Fri, 2007-07-13 at 13:22 +0800, silicom wrote: > I have a simple oss ac97 playback driver for xilinx ml403 and > linux2.6.17 kernel,but when I test it with a *.wav file with sample > rate 44.1k, there is much noisy, and I want to know whether there's > problem with my ml403 board or ac97 driver,could anyone be kind to > help me test it on your board or point out my problem? Today I took some time and tried to compile your driver, but one of the first things I saw was that there is a file missing: "xac97_l.h". I think, it contains your "low level" functions. If you post the file, and I have some time, I'll test your driver and what it does on the board, which I have available. Furthermore your driver depends on xbasic_types.c/h, xio.c/h, which some people might not have, too ... especially xio.c/h (in my experience ;-) ) ... In my last mail (last week) I announced my driver for the AC97 Controller of Xilinx and said that I'm going to release/post it. Since then, I worked on it once more and now it seems to be pretty stable and usable (playback support). I added capture support, too. [Capturing basically works, but there is a problem with higher rates and ALSA not reading from the intermediate buffer anymore ... not yet investigated.] My driver will be published on a website soon. I'll post the link as soon as possible. Meanwhile, if you or anyone want to try it, just mail me (JOFT@gmx.de). Joachim --=-on8rfS4l9ztJ8DY3ppxn Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) iD8DBQBGnnGEZY86bR8HqNwRAv/1AJ4w0hO0wf+DROcGvFuQ4G2eGy3IxgCfWwBL cPzF6yhI3rpbZo6ta9JPhqU= =npcL -----END PGP SIGNATURE----- --=-on8rfS4l9ztJ8DY3ppxn--