From patchwork Tue Feb 9 12:40:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anton Yakovlev X-Patchwork-Id: 12078023 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3568FC433E0 for ; Tue, 9 Feb 2021 12:45:02 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8567564E74 for ; Tue, 9 Feb 2021 12:45:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8567564E74 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=opensynergy.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E1D0C16C1; Tue, 9 Feb 2021 13:44:09 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E1D0C16C1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1612874700; bh=bjXhhX44aIZYjp3O3k97gC60DkGIY5oV8PvcdBcBHcM=; h=From:To:Subject:Date:In-Reply-To:References:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=gILoBgN17BikUpuIZivDixczpW2M0AsuCx8NkCXzmCcSAOt1UeW4pzVu/eILDESAf KQzJ4lIWxyyMpkiZTM+bacZlbHIBaLlj39FV/wDj5tOKOhlrH9suV8PWxOs9r2ivJl 7AU02EbgYdpRfqFmJW1ofo6gsKV3afEODv3Rh/nQ= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 9B87DF804AF; Tue, 9 Feb 2021 13:41:09 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id E24C7F804E4; Tue, 9 Feb 2021 13:41:07 +0100 (CET) Received: from mx1.opensynergy.com (mx1.opensynergy.com [217.66.60.4]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 5661AF804AF for ; Tue, 9 Feb 2021 13:41:01 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 5661AF804AF Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=opensynergy.com header.i=@opensynergy.com header.b="QdxQMOe2" Received: from SR-MAILGATE-02.opensynergy.com (localhost.localdomain [127.0.0.1]) by mx1.opensynergy.com (Proxmox) with ESMTP id E7A7CA1610; Tue, 9 Feb 2021 13:41:00 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=opensynergy.com; h=cc:cc:content-transfer-encoding:content-type:content-type :date:from:from:in-reply-to:message-id:mime-version:references :reply-to:subject:subject:to:to; s=srmailgate02; bh=rxMmKKZTRgUm d2FkfYRWMBcqlmAD7VPGS8jiNI5r6uM=; b=QdxQMOe2/8ATnKDlapDfWIzHYZRL r/rjQLFwTpYWIAUTNF7PJg5K4NHUADO+ksVs03lR3ZhKTsLu/ZGv87S2+jWV3U0d VUz0CAMaOZaE/PAlJPdx8JpxIt/xWVy/gcr4xDwpEWMgyihimz8jBpp/+jJyyux7 lduRyq16p/RN9wTRSZMhsExVyzvnW95G5g+/4H9bgi1Rfxq0v//DpJ4tTgqVdrp/ NQzZn86Z9Qh/72pLRBGbZFImXvtf3OfcD1qCkVbgRg2dK7+Aj4jgYqo1M8CB6sIC 5Lk8RWHT2+eMPV57jUfzJpWX9eard9XNfVyGeH83IMffj910gYaaL1XbTw== From: Anton Yakovlev To: , , Subject: [PATCH v3 7/9] ALSA: virtio: introduce jack support Date: Tue, 9 Feb 2021 13:40:08 +0100 Message-ID: <20210209124011.1224628-8-anton.yakovlev@opensynergy.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210209124011.1224628-1-anton.yakovlev@opensynergy.com> References: <20210209124011.1224628-1-anton.yakovlev@opensynergy.com> MIME-Version: 1.0 X-ClientProxiedBy: SR-MAIL-02.open-synergy.com (10.26.10.22) To SR-MAIL-01.open-synergy.com (10.26.10.21) Cc: linux-kernel@vger.kernel.org, Takashi Iwai , "Michael S. Tsirkin" X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 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: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Enumerate all available jacks and create ALSA controls. At the moment jacks have a simple implementation and can only be used to receive notifications about a plugged in/out device. Signed-off-by: Anton Yakovlev --- sound/virtio/Makefile | 1 + sound/virtio/virtio_card.c | 14 +++ sound/virtio/virtio_card.h | 12 ++ sound/virtio/virtio_jack.c | 233 +++++++++++++++++++++++++++++++++++++ 4 files changed, 260 insertions(+) create mode 100644 sound/virtio/virtio_jack.c diff --git a/sound/virtio/Makefile b/sound/virtio/Makefile index 34493226793f..09f485291285 100644 --- a/sound/virtio/Makefile +++ b/sound/virtio/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_SND_VIRTIO) += virtio_snd.o virtio_snd-objs := \ virtio_card.o \ virtio_ctl_msg.o \ + virtio_jack.o \ virtio_pcm.o \ virtio_pcm_msg.o \ virtio_pcm_ops.o diff --git a/sound/virtio/virtio_card.c b/sound/virtio/virtio_card.c index a845978111d6..4578d0ce0726 100644 --- a/sound/virtio/virtio_card.c +++ b/sound/virtio/virtio_card.c @@ -67,6 +67,10 @@ static void virtsnd_event_notify_cb(struct virtqueue *vqueue) virtqueue_disable_cb(vqueue); while ((event = virtqueue_get_buf(vqueue, &length))) { switch (le32_to_cpu(event->hdr.code)) { + case VIRTIO_SND_EVT_JACK_CONNECTED: + case VIRTIO_SND_EVT_JACK_DISCONNECTED: + virtsnd_jack_event(snd, event); + break; case VIRTIO_SND_EVT_PCM_PERIOD_ELAPSED: case VIRTIO_SND_EVT_PCM_XRUN: virtsnd_pcm_event(snd, event); @@ -210,10 +214,20 @@ static int virtsnd_build_devs(struct virtio_snd *snd) VIRTIO_SND_CARD_NAME " at %s/%s", dev_name(dev->parent), dev_name(dev)); + rc = virtsnd_jack_parse_cfg(snd); + if (rc) + return rc; + rc = virtsnd_pcm_parse_cfg(snd); if (rc) return rc; + if (snd->njacks) { + rc = virtsnd_jack_build_devs(snd); + if (rc) + return rc; + } + if (snd->nsubstreams) { rc = virtsnd_pcm_build_devs(snd); if (rc) diff --git a/sound/virtio/virtio_card.h b/sound/virtio/virtio_card.h index aca87059564e..9e6cd79eda25 100644 --- a/sound/virtio/virtio_card.h +++ b/sound/virtio/virtio_card.h @@ -18,6 +18,7 @@ #define VIRTIO_SND_CARD_NAME "VirtIO SoundCard" #define VIRTIO_SND_PCM_NAME "VirtIO PCM" +struct virtio_jack; struct virtio_pcm_substream; /** @@ -39,6 +40,8 @@ struct virtio_snd_queue { * @ctl_msgs: Pending control request list. * @event_msgs: Device events. * @pcm_list: VirtIO PCM device list. + * @jacks: VirtIO jacks. + * @njacks: Number of jacks. * @substreams: VirtIO PCM substreams. * @nsubstreams: Number of PCM substreams. */ @@ -50,6 +53,8 @@ struct virtio_snd { struct list_head ctl_msgs; struct virtio_snd_event *event_msgs; struct list_head pcm_list; + struct virtio_jack *jacks; + unsigned int njacks; struct virtio_pcm_substream *substreams; unsigned int nsubstreams; }; @@ -90,4 +95,11 @@ virtsnd_pcm_queue(struct virtio_pcm_substream *vss) return virtsnd_rx_queue(vss->snd); } +int virtsnd_jack_parse_cfg(struct virtio_snd *snd); + +int virtsnd_jack_build_devs(struct virtio_snd *snd); + +void virtsnd_jack_event(struct virtio_snd *snd, + struct virtio_snd_event *event); + #endif /* VIRTIO_SND_CARD_H */ diff --git a/sound/virtio/virtio_jack.c b/sound/virtio/virtio_jack.c new file mode 100644 index 000000000000..a78cf465171d --- /dev/null +++ b/sound/virtio/virtio_jack.c @@ -0,0 +1,233 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * virtio-snd: Virtio sound device + * Copyright (C) 2021 OpenSynergy GmbH + */ +#include +#include +#include + +#include "virtio_card.h" + +/** + * DOC: Implementation Status + * + * At the moment jacks have a simple implementation and can only be used to + * receive notifications about a plugged in/out device. + * + * VIRTIO_SND_R_JACK_REMAP + * is not supported + */ + +/** + * struct virtio_jack - VirtIO jack. + * @jack: Kernel jack control. + * @nid: Functional group node identifier. + * @features: Jack virtio feature bit map (1 << VIRTIO_SND_JACK_F_XXX). + * @defconf: Pin default configuration value. + * @caps: Pin capabilities value. + * @connected: Current jack connection status. + * @type: Kernel jack type (SND_JACK_XXX). + */ +struct virtio_jack { + struct snd_jack *jack; + unsigned int nid; + unsigned int features; + unsigned int defconf; + unsigned int caps; + bool connected; + int type; +}; + +/** + * virtsnd_jack_get_label() - Get the name string for the jack. + * @vjack: VirtIO jack. + * + * Returns the jack name based on the default pin configuration value (see HDA + * specification). + * + * Context: Any context. + * Return: Name string. + */ +static const char *virtsnd_jack_get_label(struct virtio_jack *vjack) +{ + unsigned int defconf = vjack->defconf; + unsigned int device = + (defconf & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT; + unsigned int location = + (defconf & AC_DEFCFG_LOCATION) >> AC_DEFCFG_LOCATION_SHIFT; + + switch (device) { + case AC_JACK_LINE_OUT: + return "Line Out"; + case AC_JACK_SPEAKER: + return "Speaker"; + case AC_JACK_HP_OUT: + return "Headphone"; + case AC_JACK_CD: + return "CD"; + case AC_JACK_SPDIF_OUT: + case AC_JACK_DIG_OTHER_OUT: + if (location == AC_JACK_LOC_HDMI) + return "HDMI Out"; + else + return "SPDIF Out"; + case AC_JACK_LINE_IN: + return "Line"; + case AC_JACK_AUX: + return "Aux"; + case AC_JACK_MIC_IN: + return "Mic"; + case AC_JACK_SPDIF_IN: + return "SPDIF In"; + case AC_JACK_DIG_OTHER_IN: + return "Digital In"; + default: + return "Misc"; + } +} + +/** + * virtsnd_jack_get_type() - Get the type for the jack. + * @vjack: VirtIO jack. + * + * Returns the jack type based on the default pin configuration value (see HDA + * specification). + * + * Context: Any context. + * Return: SND_JACK_XXX value. + */ +static int virtsnd_jack_get_type(struct virtio_jack *vjack) +{ + unsigned int defconf = vjack->defconf; + unsigned int device = + (defconf & AC_DEFCFG_DEVICE) >> AC_DEFCFG_DEVICE_SHIFT; + + switch (device) { + case AC_JACK_LINE_OUT: + case AC_JACK_SPEAKER: + return SND_JACK_LINEOUT; + case AC_JACK_HP_OUT: + return SND_JACK_HEADPHONE; + case AC_JACK_SPDIF_OUT: + case AC_JACK_DIG_OTHER_OUT: + return SND_JACK_AVOUT; + case AC_JACK_MIC_IN: + return SND_JACK_MICROPHONE; + default: + return SND_JACK_LINEIN; + } +} + +/** + * virtsnd_jack_parse_cfg() - Parse the jack configuration. + * @snd: VirtIO sound device. + * + * This function is called during initial device initialization. + * + * Context: Any context that permits to sleep. + * Return: 0 on success, -errno on failure. + */ +int virtsnd_jack_parse_cfg(struct virtio_snd *snd) +{ + struct virtio_device *vdev = snd->vdev; + struct virtio_snd_jack_info *info; + unsigned int i; + int rc; + + virtio_cread(snd->vdev, struct virtio_snd_config, jacks, &snd->njacks); + if (!snd->njacks) + return 0; + + snd->jacks = devm_kcalloc(&vdev->dev, snd->njacks, sizeof(*snd->jacks), + GFP_KERNEL); + if (!snd->jacks) + return -ENOMEM; + + info = kcalloc(snd->njacks, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + rc = virtsnd_ctl_query_info(snd, VIRTIO_SND_R_JACK_INFO, 0, snd->njacks, + sizeof(*info), info); + if (rc) + goto on_exit; + + for (i = 0; i < snd->njacks; ++i) { + struct virtio_jack *vjack = &snd->jacks[i]; + + vjack->nid = le32_to_cpu(info[i].hdr.hda_fn_nid); + vjack->features = le32_to_cpu(info[i].features); + vjack->defconf = le32_to_cpu(info[i].hda_reg_defconf); + vjack->caps = le32_to_cpu(info[i].hda_reg_caps); + vjack->connected = info[i].connected; + } + +on_exit: + kfree(info); + + return rc; +} + +/** + * virtsnd_jack_build_devs() - Build ALSA controls for jacks. + * @snd: VirtIO sound device. + * + * Context: Any context that permits to sleep. + * Return: 0 on success, -errno on failure. + */ +int virtsnd_jack_build_devs(struct virtio_snd *snd) +{ + unsigned int i; + int rc; + + for (i = 0; i < snd->njacks; ++i) { + struct virtio_jack *vjack = &snd->jacks[i]; + + vjack->type = virtsnd_jack_get_type(vjack); + + rc = snd_jack_new(snd->card, virtsnd_jack_get_label(vjack), + vjack->type, &vjack->jack, true, true); + if (rc) + return rc; + + if (vjack->jack) + vjack->jack->private_data = vjack; + + snd_jack_report(vjack->jack, + vjack->connected ? vjack->type : 0); + } + + return 0; +} + +/** + * virtsnd_jack_event() - Handle the jack event notification. + * @snd: VirtIO sound device. + * @event: VirtIO sound event. + * + * Context: Interrupt context. + */ +void virtsnd_jack_event(struct virtio_snd *snd, struct virtio_snd_event *event) +{ + unsigned int jack_id = le32_to_cpu(event->data); + struct virtio_jack *vjack; + + if (jack_id >= snd->njacks) + return; + + vjack = &snd->jacks[jack_id]; + + switch (le32_to_cpu(event->hdr.code)) { + case VIRTIO_SND_EVT_JACK_CONNECTED: + vjack->connected = true; + break; + case VIRTIO_SND_EVT_JACK_DISCONNECTED: + vjack->connected = false; + break; + default: + return; + } + + snd_jack_report(vjack->jack, vjack->connected ? vjack->type : 0); +}