From mboxrd@z Thu Jan 1 00:00:00 1970 From: Remy Bruno Subject: RME AES32 & MADI Date: Wed, 31 Jan 2007 13:11:48 +0100 Message-ID: <20070131121148.GA20540@trinnov.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@lists.sourceforge.net Errors-To: alsa-devel-bounces@lists.sourceforge.net To: alsa-devel@lists.sourceforge.net List-Id: alsa-devel@alsa-project.org Hello, I have been working on the AES32 and will soon provide a patch to get it (hopefully) fully operational (hdspm code). Moreover, I also worked on the MADI card, but the original hdspm driver didn't work for me (ie the code before my modifications to support AES32). I had to deal with the following points: - it needed the DDS feature (clock divisor), as for the AES32 and hdsp9632 cards (this may be a new behavior for recent cards) - the channel map needed to always be channel_map_madi_ss (and never channel_map_madi_ds, even at 96k), as for AES32. Otherwise, the routing was not correct. - not enough DMA memory was beeing allocated (only for "params_channels(params)" channels whereas it should be allocated for all the channels, otherwise it didn't work at 96kHz) (alsa-lib was complaining, so I don't think an old MADI card would work either) - I had to play with the channel and rate rules (snd_hdspm_hw_rule_channels_rate and so on) to get it working. Not completely clear to me how it works but it didn't work as it was So here come my questions: - Was the MADI driver completely fonctionnal before now? In other words, maybe an older revision of the card was working as the code suggested (ie differently than the revision I have, which is 204), can anyone confirm this? - As a corollary: should I keep the compatibility with the old code? IE keep using channel_map_madi_ds, etc. for revisions < 204? I will provide a patch when I know how to deal with the previous code. Bye Remy ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV