From nobody Mon Sep 16 19:20:04 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2AE0CD5BC8 for ; Tue, 19 Sep 2023 14:23:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232776AbjISOXO (ORCPT ); Tue, 19 Sep 2023 10:23:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59558 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232768AbjISOXL (ORCPT ); Tue, 19 Sep 2023 10:23:11 -0400 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C165122 for ; Tue, 19 Sep 2023 07:23:04 -0700 (PDT) Received: from pps.filterd (m0077474.ppops.net [127.0.0.1]) by mx0b-001ae601.pphosted.com (8.17.1.22/8.17.1.22) with ESMTP id 38JASjjG009787; Tue, 19 Sep 2023 09:22:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cirrus.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding:content-type; s= PODMain02222019; bh=PzgE18K4PqO8dXD62uIrqgRS5xHATb17ID0/Z6vMJHE=; b= Y/W5lFN6Ww362RIki5eyz9Pz5k2bLV7R0V9gTqDyFJlF0PFTKIMdw9YkxUoDXh0d FivnqVAWxHD4B0m+U0NgGNd3bgk3ny/QycoITMiY2cGRCrLYa92Wmb+eltr3G6uV m4jXX4EtTWv5NgX2dron0a6j+mODol793c4IKmtnn0vakpD6/Yvjm8JG51GjTFvV 7qsp16q2ak7t5j3TsVNd22cM/5WQqNEfKQUpzOoG9t2jHCoCaq8gk7mkBWs5Kr5m 9hryQaAaUgUJYef2tr/W5XlBiLs2kl9WZKaA8tsOzZVV2pqF0HqzqSLNXrSjgoVA fUsj2DtEv4H0tN+l8DXpJQ== Received: from ediex01.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3t58shu592-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 19 Sep 2023 09:22:52 -0500 (CDT) Received: from ediex02.ad.cirrus.com (198.61.84.81) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.37; Tue, 19 Sep 2023 15:22:50 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by anon-ediex02.ad.cirrus.com (198.61.84.81) with Microsoft SMTP Server id 15.2.1118.37 via Frontend Transport; Tue, 19 Sep 2023 15:22:50 +0100 Received: from sbinding-cirrus-dsktp2.ad.cirrus.com (unknown [198.90.238.135]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 3017411AB; Tue, 19 Sep 2023 14:22:50 +0000 (UTC) From: Stefan Binding To: Jaroslav Kysela , Takashi Iwai CC: , , , Stefan Binding Subject: [PATCH v3 2/2] ALSA: hda: cs35l41: Add read-only ALSA control for forced mute Date: Tue, 19 Sep 2023 15:22:40 +0100 Message-ID: <20230919142240.467682-3-sbinding@opensource.cirrus.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230919142240.467682-1-sbinding@opensource.cirrus.com> References: <20230919142240.467682-1-sbinding@opensource.cirrus.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: HeOibzYEYfZoCoLcPl0rqONd95R7EBXo X-Proofpoint-ORIG-GUID: HeOibzYEYfZoCoLcPl0rqONd95R7EBXo X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" When the CS35L41 amp is requested to mute using the ACPI notification mechanism, userspace is not notified that the amp is muted. To allow userspace to know about the mute, add an ALSA control which tracks the forced mute override. This control does not track the overall mute state of the amp, since the amp is only unmuted during playback anyway, instead it tracks the mute override request from the ACPI notification. Signed-off-by: Stefan Binding --- sound/pci/hda/cs35l41_hda.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index 7b56bceea9e8..dd10b4cd3d1a 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -972,6 +972,15 @@ static int cs35l41_fw_load_ctl_get(struct snd_kcontrol= *kcontrol, return 0; } =20 +static int cs35l41_mute_override_ctl_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct cs35l41_hda *cs35l41 =3D snd_kcontrol_chip(kcontrol); + + ucontrol->value.integer.value[0] =3D cs35l41->mute_override; + return 0; +} + static void cs35l41_fw_load_work(struct work_struct *work) { struct cs35l41_hda *cs35l41 =3D container_of(work, struct cs35l41_hda, fw= _load_work); @@ -1055,6 +1064,7 @@ static int cs35l41_create_controls(struct cs35l41_hda= *cs35l41) { char fw_type_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; char fw_load_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; + char mute_override_ctl_name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; struct snd_kcontrol_new fw_type_ctl =3D { .name =3D fw_type_ctl_name, .iface =3D SNDRV_CTL_ELEM_IFACE_CARD, @@ -1069,12 +1079,21 @@ static int cs35l41_create_controls(struct cs35l41_h= da *cs35l41) .get =3D cs35l41_fw_load_ctl_get, .put =3D cs35l41_fw_load_ctl_put, }; + struct snd_kcontrol_new mute_override_ctl =3D { + .name =3D mute_override_ctl_name, + .iface =3D SNDRV_CTL_ELEM_IFACE_CARD, + .info =3D snd_ctl_boolean_mono_info, + .access =3D SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, + .get =3D cs35l41_mute_override_ctl_get, + }; int ret; =20 scnprintf(fw_type_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s DSP1 Firmw= are Type", cs35l41->amp_name); scnprintf(fw_load_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s DSP1 Firmw= are Load", cs35l41->amp_name); + scnprintf(mute_override_ctl_name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s Forc= ed Mute Status", + cs35l41->amp_name); =20 ret =3D snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&fw_type_ctl, cs35= l41)); if (ret) { @@ -1092,6 +1111,15 @@ static int cs35l41_create_controls(struct cs35l41_hd= a *cs35l41) =20 dev_dbg(cs35l41->dev, "Added Control %s\n", fw_load_ctl.name); =20 + ret =3D snd_ctl_add(cs35l41->codec->card, snd_ctl_new1(&mute_override_ctl= , cs35l41)); + if (ret) { + dev_err(cs35l41->dev, "Failed to add KControl %s =3D %d\n", mute_overrid= e_ctl.name, + ret); + return ret; + } + + dev_dbg(cs35l41->dev, "Added Control %s\n", mute_override_ctl.name); + return 0; } =20 --=20 2.34.1