From patchwork Thu Dec 10 01:52:08 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: libin.yang@linux.intel.com X-Patchwork-Id: 7814031 Return-Path: X-Original-To: patchwork-alsa-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 41B67BEEE1 for ; Thu, 10 Dec 2015 01:55:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6E5482055D for ; Thu, 10 Dec 2015 01:55:29 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) by mail.kernel.org (Postfix) with ESMTP id 474FD20552 for ; Thu, 10 Dec 2015 01:55:28 +0000 (UTC) Received: by alsa0.perex.cz (Postfix, from userid 1000) id 186262650DB; Thu, 10 Dec 2015 02:55:26 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_LOW, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from alsa0.perex.cz (localhost [127.0.0.1]) by alsa0.perex.cz (Postfix) with ESMTP id 461DA261721; Thu, 10 Dec 2015 02:54:48 +0100 (CET) X-Original-To: alsa-devel@alsa-project.org Delivered-To: alsa-devel@alsa-project.org Received: by alsa0.perex.cz (Postfix, from userid 1000) id D12172615F7; Thu, 10 Dec 2015 02:54:46 +0100 (CET) Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by alsa0.perex.cz (Postfix) with ESMTP id 892422614F4 for ; Thu, 10 Dec 2015 02:54:39 +0100 (CET) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga101.jf.intel.com with ESMTP; 09 Dec 2015 17:54:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,406,1444719600"; d="scan'208";a="615551539" Received: from younglee-grantley.sh.intel.com ([10.239.159.137]) by FMSMGA003.fm.intel.com with ESMTP; 09 Dec 2015 17:54:35 -0800 From: libin.yang@linux.intel.com To: alsa-devel@alsa-project.org, tiwai@suse.de Date: Thu, 10 Dec 2015 09:52:08 +0800 Message-Id: <1449712332-106365-2-git-send-email-libin.yang@linux.intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1449712332-106365-1-git-send-email-libin.yang@linux.intel.com> References: <1449712332-106365-1-git-send-email-libin.yang@linux.intel.com> Cc: libin.yang@intel.com, mengdong.lin@intel.com, Libin Yang Subject: [alsa-devel] [PATCH v3 1/5] ALSA: hda - hdmi begin to support dynamic PCM assignment X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.14 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: , MIME-Version: 1.0 Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org X-Virus-Scanned: ClamAV using ClamSMTP From: Libin Yang Begin to support dynamic PCM assignment to pin in hdmi audio driver. This means PCM will not be statically bound with pin. When there is a monitor connected, the corresponding pin will try to find a proper PCM to bind. When the monitor is disconnected, the corresponding pin will unbind the PCM. This helps to reduce the PCM number when there are many pins (device entries in DP MST mode) and only a few of them work at the same time. This patch adds the pcm member in struct hdmi_spec_per_pin. When PCM is dynamically bound to the pin, the member pcm will pointer to the corresponding pcm_rec[] in hdmi_spec, which means the hda_pcm is bound to the pin. Signed-off-by: Libin Yang --- sound/pci/hda/patch_hdmi.c | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index 85342d2..4666208 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -83,6 +83,7 @@ struct hdmi_spec_per_pin { struct mutex lock; struct delayed_work work; struct snd_kcontrol *eld_ctl; + struct hda_pcm *pcm; /* pointer to spec->pcm_rec[n] dynamically*/ int repoll_count; bool setup; /* the stream has been set up by prepare callback */ int channels; /* current number of channels */ @@ -141,7 +142,7 @@ struct hdmi_spec { struct hdmi_ops ops; bool dyn_pin_out; - + bool dyn_pcm_assign; /* * Non-generic VIA/NVIDIA specific */ @@ -381,13 +382,16 @@ static int hinfo_to_pin_index(struct hda_codec *codec, struct hda_pcm_stream *hinfo) { struct hdmi_spec *spec = codec->spec; + struct hdmi_spec_per_pin *per_pin; int pin_idx; - for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) - if (get_pcm_rec(spec, pin_idx)->stream == hinfo) + for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) { + per_pin = get_pin(spec, pin_idx); + if (per_pin->pcm && per_pin->pcm->stream == hinfo) return pin_idx; + } - codec_warn(codec, "HDMI: hinfo %p not registered\n", hinfo); + codec_dbg(codec, "HDMI: hinfo %p not registered\n", hinfo); return -EINVAL; } @@ -2070,6 +2074,7 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol, static int generic_hdmi_build_pcms(struct hda_codec *codec) { struct hdmi_spec *spec = codec->spec; + struct hdmi_spec_per_pin *per_pin; int pin_idx; for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) { @@ -2079,6 +2084,10 @@ static int generic_hdmi_build_pcms(struct hda_codec *codec) info = snd_hda_codec_pcm_new(codec, "HDMI %d", pin_idx); if (!info) return -ENOMEM; + if (!spec->dyn_pcm_assign) { + per_pin = get_pin(spec, pin_idx); + per_pin->pcm = info; + } spec->pcm_rec[pin_idx] = info; info->pcm_type = HDA_PCM_TYPE_HDMI; info->own_chmap = true;