From nobody Thu Dec 18 08:09:13 2025 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 487B6C04AAE for ; Wed, 20 Sep 2023 16:34:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235011AbjITQeS (ORCPT ); Wed, 20 Sep 2023 12:34:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50692 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234795AbjITQeL (ORCPT ); Wed, 20 Sep 2023 12:34:11 -0400 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5726DDC for ; Wed, 20 Sep 2023 09:34:05 -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 38KFt6MZ023727; Wed, 20 Sep 2023 11:33:39 -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= YWbx3A5Ecp6k7YzYCpzXyDXj+LPXsyFHg7swCcqlPTVkoEIF7mOTOUYJAIwZ/yuv 8NKiYaodEeULYqdozFiZGpD+dFm+pVgWp67ePuR5Ban5b5TNEFRJxObkHPi2tSUN cIPdQKuJaNbMW1WWXapgcMGJKzIVbkVm1R19C+TVh6YSCd062lsJsbtvOdGJaClF ng+9kfpdTLrCgBTaOD0CyTiGOhbMajsup1CWt8CRiKW9q629gLWVSOOxnHAK48Dd BFya0A+UCOXSJuupSf4PYiv6Q2iY6o2RcbXbw6t5Qr7hB7oR7Z9tJOprCEmoj1+4 m4tTVjRqTMHpagvY8+0ByA== Received: from ediex01.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3t58shvnd5-3 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 20 Sep 2023 11:33:39 -0500 (CDT) Received: from ediex01.ad.cirrus.com (198.61.84.80) 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; Wed, 20 Sep 2023 17:33:37 +0100 Received: from ediswmail.ad.cirrus.com (198.61.86.93) by ediex01.ad.cirrus.com (198.61.84.80) with Microsoft SMTP Server id 15.2.1118.37 via Frontend Transport; Wed, 20 Sep 2023 17:33:37 +0100 Received: from sbinding-cirrus-dsktp2.ad.cirrus.com (unknown [198.90.238.135]) by ediswmail.ad.cirrus.com (Postfix) with ESMTP id 393BE458; Wed, 20 Sep 2023 16:33:37 +0000 (UTC) From: Stefan Binding To: Jaroslav Kysela , Takashi Iwai CC: , , , Stefan Binding Subject: [PATCH v4 4/4] ALSA: hda: cs35l41: Add read-only ALSA control for forced mute Date: Wed, 20 Sep 2023 16:54:50 +0100 Message-ID: <20230920155450.576287-5-sbinding@opensource.cirrus.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230920155450.576287-1-sbinding@opensource.cirrus.com> References: <20230920155450.576287-1-sbinding@opensource.cirrus.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-GUID: EUwYUiMW8bgtt8XIRHweRy9CqW2mTvf_ X-Proofpoint-ORIG-GUID: EUwYUiMW8bgtt8XIRHweRy9CqW2mTvf_ 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