From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wu Fengguang Subject: [PATCH 0/4] multi-channel HDMI audio support Date: Wed, 19 Nov 2008 08:56:14 +0800 Message-ID: <20081119005614.431653658@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from azsmga101.ch.intel.com (mga07.intel.com [143.182.124.22]) by alsa0.perex.cz (Postfix) with ESMTP id B8DAF244E9 for ; Wed, 19 Nov 2008 02:41:26 +0100 (CET) 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: Takashi Iwai Cc: alsa-devel List-Id: alsa-devel@alsa-project.org Hi Takashi, This patchset attempts to support multi-channel HDMI audio. It contains two basic operations: - setup the CA(channel-allocation) byte in the audio infoframe - setup the converter channel to HDMI slot mapping Please read patch 3 for more detailed descriptions: [PATCH 1/4] hda: make standalone hdmi_fill_audio_infoframe() [PATCH 2/4] hda: make global snd_print_channel_allocation() [PATCH 3/4] hda: HDMI channel allocations for audio infoframe [PATCH 4/4] hda: HDMI channel mapping cleanups The current implementation only does minimal works that ensure multi-channel audio playing out. However the wrong speakers may be selected. We could elaborate the framework/policy if it proves to be a problem. Thank you, Fengguang --