From nobody Thu Dec 26 23:23:30 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 83563CD5BC9 for ; Tue, 19 Sep 2023 14:23:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232810AbjISOXW (ORCPT ); Tue, 19 Sep 2023 10:23:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232778AbjISOXM (ORCPT ); Tue, 19 Sep 2023 10:23:12 -0400 Received: from mx0b-001ae601.pphosted.com (mx0b-001ae601.pphosted.com [67.231.152.168]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 68808F4 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 38JASjjF009787; Tue, 19 Sep 2023 09:22:52 -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=Z6eJauh/Q4qfOq4V2ivIkDYuNOdx0/fXlZSC27W0hFI=; b= RHmIsV84uHWjKmI09yjioS9+HoumH/ysQ0n9tW7uWcUmDBByqrKi+PR5l0kKjszj RubgtVzN2FQDApjNoWUaHQ8ylxVhWF3BY62rgMlYkYJeE2CJuHhs/JPWN3dQOArA TeohWotQv5TbG+aWxGAKMZlBmqcW7VM+kBQljKjbcf0LtB9nb1+DrR0QpRKVGz3u /OuH6xIaqLIpTqSkhDZXcmHZjvF8ZcTTeKqSN8DdznYIT8YuSZcB3alMTVFfIXqK NalZEYThvdohwkXX9162CRyttgAwPbaWYSnrYbzDtGfS5o6odeoDplfHRZAtKLGk /Fa1jflcmbCDAveyo0z4/A== Received: from ediex01.ad.cirrus.com ([84.19.233.68]) by mx0b-001ae601.pphosted.com (PPS) with ESMTPS id 3t58shu592-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 19 Sep 2023 09:22:52 -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; Tue, 19 Sep 2023 15:22:50 +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; 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 EE47111AA; Tue, 19 Sep 2023 14:22:49 +0000 (UTC) From: Stefan Binding To: Jaroslav Kysela , Takashi Iwai CC: , , , Vitaly Rodionov , Stefan Binding Subject: [PATCH v3 1/2] ALSA: hda: cs35l41: Support mute notifications for CS35L41 HDA Date: Tue, 19 Sep 2023 15:22:39 +0100 Message-ID: <20230919142240.467682-2-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: MAOmCWWIEhkk_p7SU0MArWNbLwFqO4hy X-Proofpoint-ORIG-GUID: MAOmCWWIEhkk_p7SU0MArWNbLwFqO4hy X-Proofpoint-Spam-Reason: safe Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Vitaly Rodionov Some laptops require a hardware based mute system, where when a hotkey is pressed, it forces the amp to be muted. For CS35L41, when the hotkey is pressed, an acpi notification is sent to the CS35L41 Device Node. The driver needs to handle this notification and call a _DSM function to retrieve the mute state. Since the amp is only muted during playback, the driver will only mute or unmute if playback is occurring, otherwise it will save the mute state for when playback starts. Only one handler can be registered for the acpi notification, but all amps need to receive that notification, we can register a single handler inside the Realtek HDA driver, so that it can then notify through the component framework. Signed-off-by: Vitaly Rodionov Signed-off-by: Stefan Binding --- sound/pci/hda/cs35l41_hda.c | 104 +++++++++++++++++++++++++++++----- sound/pci/hda/cs35l41_hda.h | 3 + sound/pci/hda/hda_component.h | 4 ++ sound/pci/hda/patch_realtek.c | 85 ++++++++++++++++++++++++++- 4 files changed, 182 insertions(+), 14 deletions(-) diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index c74faa2ff46c..7b56bceea9e8 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -33,6 +33,9 @@ #define CAL_AMBIENT_DSP_CTL_NAME "CAL_AMBIENT" #define CAL_DSP_CTL_TYPE 5 #define CAL_DSP_CTL_ALG 205 +#define CS35L41_UUID "50d90cdc-3de4-4f18-b528-c7fe3b71f40d" +#define CS35L41_DSM_GET_MUTE 5 +#define CS35L41_NOTIFY_EVENT 0x91 =20 static bool firmware_autostart =3D 1; module_param(firmware_autostart, bool, 0444); @@ -520,6 +523,31 @@ static void cs35l41_hda_play_start(struct device *dev) =20 } =20 +static void cs35l41_mute(struct device *dev, bool mute) +{ + struct cs35l41_hda *cs35l41 =3D dev_get_drvdata(dev); + struct regmap *reg =3D cs35l41->regmap; + + dev_dbg(dev, "Mute(%d:%d) Playback Started: %d\n", mute, cs35l41->mute_ov= erride, + cs35l41->playback_started); + + if (cs35l41->playback_started) { + if (mute || cs35l41->mute_override) { + dev_dbg(dev, "Muting\n"); + regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mu= te)); + } else { + dev_dbg(dev, "Unmuting\n"); + if (cs35l41->firmware_running) { + regmap_multi_reg_write(reg, cs35l41_hda_unmute_dsp, + ARRAY_SIZE(cs35l41_hda_unmute_dsp)); + } else { + regmap_multi_reg_write(reg, cs35l41_hda_unmute, + ARRAY_SIZE(cs35l41_hda_unmute)); + } + } + } +} + static void cs35l41_hda_play_done(struct device *dev) { struct cs35l41_hda *cs35l41 =3D dev_get_drvdata(dev); @@ -529,13 +557,7 @@ static void cs35l41_hda_play_done(struct device *dev) =20 cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 1, cs35l41->firmware_running); - if (cs35l41->firmware_running) { - regmap_multi_reg_write(reg, cs35l41_hda_unmute_dsp, - ARRAY_SIZE(cs35l41_hda_unmute_dsp)); - } else { - regmap_multi_reg_write(reg, cs35l41_hda_unmute, - ARRAY_SIZE(cs35l41_hda_unmute)); - } + cs35l41_mute(dev, false); } =20 static void cs35l41_hda_pause_start(struct device *dev) @@ -545,7 +567,7 @@ static void cs35l41_hda_pause_start(struct device *dev) =20 dev_dbg(dev, "Pause (Start)\n"); =20 - regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute= )); + cs35l41_mute(dev, true); cs35l41_global_enable(dev, reg, cs35l41->hw_cfg.bst_type, 0, cs35l41->firmware_running); } @@ -1073,6 +1095,53 @@ static int cs35l41_create_controls(struct cs35l41_hd= a *cs35l41) return 0; } =20 +static bool cs35l41_dsm_supported(acpi_handle handle, unsigned int command= s) +{ + guid_t guid; + + guid_parse(CS35L41_UUID, &guid); + + return acpi_check_dsm(handle, &guid, 0, BIT(commands)); +} + +static int cs35l41_get_acpi_mute_state(struct cs35l41_hda *cs35l41, acpi_h= andle handle) +{ + guid_t guid; + union acpi_object *ret; + int mute =3D -ENODEV; + + guid_parse(CS35L41_UUID, &guid); + + if (cs35l41_dsm_supported(handle, CS35L41_DSM_GET_MUTE)) { + ret =3D acpi_evaluate_dsm(handle, &guid, 0, CS35L41_DSM_GET_MUTE, NULL); + mute =3D *ret->buffer.pointer; + dev_dbg(cs35l41->dev, "CS35L41_DSM_GET_MUTE: %d\n", mute); + } + + dev_dbg(cs35l41->dev, "%s: %d\n", __func__, mute); + + return mute; +} + +static void cs35l41_acpi_device_notify(acpi_handle handle, u32 event, stru= ct device *dev) +{ + struct cs35l41_hda *cs35l41 =3D dev_get_drvdata(dev); + int mute; + + if (event !=3D CS35L41_NOTIFY_EVENT) + return; + + mute =3D cs35l41_get_acpi_mute_state(cs35l41, handle); + if (mute < 0) { + dev_warn(cs35l41->dev, "Unable to retrieve mute state: %d\n", mute); + return; + } + + dev_dbg(cs35l41->dev, "Requesting mute value: %d\n", mute); + cs35l41->mute_override =3D (mute > 0); + cs35l41_mute(cs35l41->dev, cs35l41->mute_override); +} + static int cs35l41_hda_bind(struct device *dev, struct device *master, voi= d *master_data) { struct cs35l41_hda *cs35l41 =3D dev_get_drvdata(dev); @@ -1114,6 +1183,14 @@ static int cs35l41_hda_bind(struct device *dev, stru= ct device *master, void *mas comps->playback_hook =3D cs35l41_hda_playback_hook; comps->pre_playback_hook =3D cs35l41_hda_pre_playback_hook; comps->post_playback_hook =3D cs35l41_hda_post_playback_hook; + comps->acpi_notify =3D cs35l41_acpi_device_notify; + comps->adev =3D cs35l41->dacpi; + + comps->acpi_notifications_supported =3D cs35l41_dsm_supported(acpi_device= _handle(comps->adev), + CS35L41_DSM_GET_MUTE); + + cs35l41->mute_override =3D cs35l41_get_acpi_mute_state(cs35l41, + acpi_device_handle(cs35l41->dacpi)) > 0; =20 mutex_unlock(&cs35l41->fw_mutex); =20 @@ -1387,8 +1464,8 @@ static int cs35l41_hda_read_acpi(struct cs35l41_hda *= cs35l41, const char *hid, i return -ENODEV; } =20 + cs35l41->dacpi =3D adev; physdev =3D get_device(acpi_get_first_physical_node(adev)); - acpi_dev_put(adev); =20 sub =3D acpi_get_subsystem_id(ACPI_HANDLE(physdev)); if (IS_ERR(sub)) @@ -1498,6 +1575,7 @@ static int cs35l41_hda_read_acpi(struct cs35l41_hda *= cs35l41, const char *hid, i hw_cfg->valid =3D false; hw_cfg->gpio1.valid =3D false; hw_cfg->gpio2.valid =3D false; + acpi_dev_put(cs35l41->dacpi); put_physdev: put_device(physdev); =20 @@ -1601,10 +1679,7 @@ int cs35l41_hda_probe(struct device *dev, const char= *device_name, int id, int i if (ret) goto err; =20 - ret =3D regmap_multi_reg_write(cs35l41->regmap, cs35l41_hda_mute, - ARRAY_SIZE(cs35l41_hda_mute)); - if (ret) - goto err; + cs35l41_mute(cs35l41->dev, true); =20 INIT_WORK(&cs35l41->fw_load_work, cs35l41_fw_load_work); mutex_init(&cs35l41->fw_mutex); @@ -1641,6 +1716,7 @@ int cs35l41_hda_probe(struct device *dev, const char = *device_name, int id, int i if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type)) gpiod_set_value_cansleep(cs35l41->reset_gpio, 0); gpiod_put(cs35l41->reset_gpio); + acpi_dev_put(cs35l41->dacpi); kfree(cs35l41->acpi_subsystem_id); =20 return ret; @@ -1660,6 +1736,8 @@ void cs35l41_hda_remove(struct device *dev) =20 component_del(cs35l41->dev, &cs35l41_hda_comp_ops); =20 + acpi_dev_put(cs35l41->dacpi); + pm_runtime_put_noidle(cs35l41->dev); =20 if (cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type)) diff --git a/sound/pci/hda/cs35l41_hda.h b/sound/pci/hda/cs35l41_hda.h index b93bf762976e..ce3f2bb6ffd0 100644 --- a/sound/pci/hda/cs35l41_hda.h +++ b/sound/pci/hda/cs35l41_hda.h @@ -10,6 +10,7 @@ #ifndef __CS35L41_HDA_H__ #define __CS35L41_HDA_H__ =20 +#include #include #include #include @@ -70,6 +71,8 @@ struct cs35l41_hda { bool halo_initialized; bool playback_started; struct cs_dsp cs_dsp; + struct acpi_device *dacpi; + bool mute_override; }; =20 enum halo_state { diff --git a/sound/pci/hda/hda_component.h b/sound/pci/hda/hda_component.h index f170aec967c1..bbd6f0ed16c1 100644 --- a/sound/pci/hda/hda_component.h +++ b/sound/pci/hda/hda_component.h @@ -6,6 +6,7 @@ * Cirrus Logic International Semiconductor Ltd. */ =20 +#include #include =20 #define HDA_MAX_COMPONENTS 4 @@ -15,6 +16,9 @@ struct hda_component { struct device *dev; char name[HDA_MAX_NAME_SIZE]; struct hda_codec *codec; + struct acpi_device *adev; + bool acpi_notifications_supported; + void (*acpi_notify)(acpi_handle handle, u32 event, struct device *dev); void (*pre_playback_hook)(struct device *dev, int action); void (*playback_hook)(struct device *dev, int action); void (*post_playback_hook)(struct device *dev, int action); diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 883a7e865bc5..7f5dab1dece4 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -10,6 +10,7 @@ * Jonathan Woithe */ =20 +#include #include #include #include @@ -6704,19 +6705,101 @@ static void alc287_fixup_legion_15imhg05_speakers(= struct hda_codec *codec, } } =20 +static void comp_acpi_device_notify(acpi_handle handle, u32 event, void *d= ata) +{ + struct hda_codec *cdc =3D data; + struct alc_spec *spec =3D cdc->spec; + int i; + + codec_info(cdc, "ACPI Notification %d\n", event); + + for (i =3D 0; i < HDA_MAX_COMPONENTS; i++) { + if (spec->comps[i].dev && spec->comps[i].acpi_notify) + spec->comps[i].acpi_notify(acpi_device_handle(spec->comps[i].adev), eve= nt, + spec->comps[i].dev); + } +} + +#ifdef CONFIG_ACPI +static int comp_bind_acpi(struct device *dev) +{ + struct hda_codec *cdc =3D dev_to_hda_codec(dev); + struct alc_spec *spec =3D cdc->spec; + bool support_notifications =3D false; + struct acpi_device *adev; + int ret; + int i; + + adev =3D spec->comps[0].adev; + if (!acpi_device_handle(adev)) + return 0; + + for (i =3D 0; i < HDA_MAX_COMPONENTS; i++) + support_notifications =3D support_notifications || + spec->comps[i].acpi_notifications_supported; + + if (support_notifications) { + ret =3D acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, + comp_acpi_device_notify, cdc); + if (ret < 0) { + codec_warn(cdc, "Failed to install notify handler: %d\n", ret); + return 0; + } + + codec_dbg(cdc, "Notify handler installed\n"); + } + + return 0; +} +#else +static int comp_bind_acpi(struct device *dev) +{ + return 0; +} +#endif + static int comp_bind(struct device *dev) { struct hda_codec *cdc =3D dev_to_hda_codec(dev); struct alc_spec *spec =3D cdc->spec; + int ret; =20 - return component_bind_all(dev, spec->comps); + ret =3D component_bind_all(dev, spec->comps); + if (ret) + return ret; + + return comp_bind_acpi(dev); } =20 +#ifdef CONFIG_ACPI +static void comp_unbind_acpi(struct device *dev) +{ + struct hda_codec *cdc =3D dev_to_hda_codec(dev); + struct alc_spec *spec =3D cdc->spec; + struct acpi_device *adev; + int ret; + + adev =3D spec->comps[0].adev; + if (!acpi_device_handle(adev)) + return; + + ret =3D acpi_remove_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, + comp_acpi_device_notify); + if (ret < 0) + codec_warn(cdc, "Failed to uninstall notify handler: %d\n", ret); +} +#else +static void comp_unbind_acpi(struct device *dev) +{ +} +#endif + static void comp_unbind(struct device *dev) { struct hda_codec *cdc =3D dev_to_hda_codec(dev); struct alc_spec *spec =3D cdc->spec; =20 + comp_unbind_acpi(dev); component_unbind_all(dev, spec->comps); } =20 --=20 2.34.1 From nobody Thu Dec 26 23:23:30 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 ; 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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