From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A3455C4360C for ; Wed, 9 Oct 2019 00:19:11 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8C73121835 for ; Wed, 9 Oct 2019 00:19:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="onBAWmk+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8C73121835 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=renesas.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 6FE8310E; Wed, 9 Oct 2019 02:18:18 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 6FE8310E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1570580348; bh=a+/FfLpo2M/5gifkw4ufoy5dgTjtgwbKfHK0Yl/YY0U=; h=Date:From:To:In-Reply-To:References:Cc:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=onBAWmk+M0mBgS5ThvCoUbmJ5Y0+munlIf3aMKPYI7UyVupqEPLHQDdPZykoyD9p+ bwl7/t4fZPr2ey3sYdJMYgVbSgxB1MqJTGQP9dBY7HlLz6qmiRkuWXCVJ3mZ008i6x +oC1xFXX0m7mT+w4/EbEL6Nesh/h556t+9+ISHqw= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id E0F06F80322; Wed, 9 Oct 2019 02:18:17 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 9D0CFF8038F; Wed, 9 Oct 2019 02:18:16 +0200 (CEST) Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by alsa1.perex.cz (Postfix) with ESMTP id E8D0AF800BF for ; Wed, 9 Oct 2019 02:18:10 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E8D0AF800BF Date: 09 Oct 2019 09:18:08 +0900 X-IronPort-AV: E=Sophos;i="5.67,273,1566831600"; d="scan'208";a="28616346" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 09 Oct 2019 09:18:08 +0900 Received: from morimoto-PC.renesas.com (unknown [10.166.18.140]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 352BA412388D; Wed, 9 Oct 2019 09:18:08 +0900 (JST) Message-ID: <87zhiaixfj.wl-kuninori.morimoto.gx@renesas.com> From: Kuninori Morimoto To: Daniel Baluta In-Reply-To: References: User-Agent: Wanderlust/2.15.9 Emacs/24.5 Mule/6.0 MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Cc: Linux-ALSA Subject: Re: [alsa-devel] Counting links in simple-card X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Hi Daniel > > * ex1) > > * CPU0 --- Codec0 > > * CPU1 --- Codec1 > > * CPU2 -----/ > > * CPU3 --- Codec2 > > * > > * => 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec > > * => 7 DAIs = 4xCPU + 3xCodec > > * => 1 ccnf = 1xdummy-Codec > > > > > > So, I don't understand exactly how did you get the formula for links. AFAICT > > there should be 3 x CPU-Codec + 1 x CPU-dummy. CPU1/CPU2 and Codec1 are using DPCM. Thus, it is... 2xCPU-Codec: CPU0 - Codec0 CPU3 - Codec2 2xCPU-dummy: CPU1 - dummy CPU2 - dummy 1xdummy-Codec: dummy - Codec1 > Also, I wonder how can i use simple-card to create just a backend link > CPU-dummy + Codec :). > > Is this supported? Do you mean CPU-dummy + dummy-Codec ? But anyway, simple-card/audio-graph DPCM support is very limited. Unfortunately it doesn't have flexibility... Thank you for your help !! Best regards --- Kuninori Morimoto _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org https://mailman.alsa-project.org/mailman/listinfo/alsa-devel