From mboxrd@z Thu Jan 1 00:00:00 1970 From: ANISH KUMAR Subject: ALSA DMIX support without MMAP ? Date: Wed, 13 Jan 2010 09:46:36 +0000 (GMT) Message-ID: <22118431.247131263375996658.JavaMail.weblogic@epml17> Reply-To: anish.singh@samsung.com Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mailout4.samsung.com (mailout4.samsung.com [203.254.224.34]) by alsa0.perex.cz (Postfix) with ESMTP id B6114103804 for ; Wed, 13 Jan 2010 10:46:40 +0100 (CET) Received: from ep_ms13_bk (mailout4.samsung.com [203.254.224.34]) by mailout1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0KW600HI3J5OFS@mailout1.samsung.com> for alsa-devel@alsa-project.org; Wed, 13 Jan 2010 18:46:36 +0900 (KST) Received: from ep_spt02 (ms13.samsung.com [203.254.225.109]) by ms13.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0KW6003YOJ5OPB@ms13.samsung.com> for alsa-devel@alsa-project.org; Wed, 13 Jan 2010 18:46:36 +0900 (KST) Content-return: prohibited MIME-version: 1.0 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: "alsa-devel@alsa-project.org" List-Id: alsa-devel@alsa-project.org Hi, I am working on android and and in our device we use ALSA. I have enabled dmix support for andoid as by default android doesn't have this plugin enabled and soon will post it in android forum however i have run into some problems.Hoping takashi can help me out on this. Problem is when i am trying to use dmix plugin i am not getting any sound (logs shown below).Is it because i don't have mmap mode support on my device??? If yes then can't dmix work without mmap mode??? Logs shown below: Entered s3c24xx_pcm_hw_params, Entered s3c24xx_pcm_hw_params, line 330 Entered s3c24xx_pcm_mmap Entered s3c24xx_pcm_prepare Entered s3c24xx_pcm_enqueue Entered s3c24xx_pcm_trigger Entered s3c24xx_pcm_pointer Entered s3c24xx_pcm_pointer res_value[0] snd_pcm_update_hw_ptr_pos xun: [0]occured XRUN! Normal playback and recording is fine if i dont use dmix plugin.During my normal playback and recording i don't use mmap as i preallocate DMA memory and use them. Regards, anish