From patchwork Wed Mar 8 23:57:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 66524 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:e54c:0:0:0:0:0 with SMTP id z12csp32442wrm; Wed, 8 Mar 2023 15:59:44 -0800 (PST) X-Google-Smtp-Source: AK7set/yxslViv3GMbDhBip8S2WZkMLAkGpzPbK5of4ibzJG328lrOtVLajI8eEOEE/chJDYPFVJ X-Received: by 2002:a17:90a:1917:b0:234:10c:a0d0 with SMTP id 23-20020a17090a191700b00234010ca0d0mr19472564pjg.6.1678319984330; Wed, 08 Mar 2023 15:59:44 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1678319984; cv=none; d=google.com; s=arc-20160816; b=wUeOHCQproYHZWd+rPzXdi0NCQQSl2qbgGXEbKvUuKLAYme0VH1GkAYhS454uq653v WUD0CD1HT3Xs1Cob8F84ICirOnPkfjHT/3DKUarFc9CXV/youyqLZ+QZQ4OJVl6ZbwGc uDtNjxbrTrgIzSC7WBbt/Ax8AofUf3o5FF5gejLv19d8oPkEK9lr8ZryYrsXCY/1pzbG eJKwXm8REuJUL9AGPpUco6Le1JavOOFMyjdnr9GXtmpAxc4Th6MG/9x7KX2Jw4vFS3OL 3YX7KVQIse6PY/Fprh7myY9A/jIPCMNu8trFpNwZYr9DhrAiOJ8YqcSAsGadhBqQRtMH 7Aaw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:references:in-reply-to:message-id :date:subject:cc:to:from:dkim-signature; bh=x8QdHTj3n3h1qyzgMZiRsIIbAGbwkhxNkx/DAnILiqU=; b=z+zKqPBtdxLxo7BCx8g9HpSFuhEfNeWycjcF9En95o6vyxflUX5IfuIYo4AP0sfzgT vUNZQGu91LO95KwdY3NwHF/d97viQ/OzHX+ITFfNcz7inM3zNjA1PfiKBgdZf0bWcm5O oEXAh8axLlF7X0iTtnyvm3Z614oQBJ8Pg3EOQVJuMp+mEku8t2SYfOxqLV4FvxSLDNRt 4nE9YMZ5/L7ca3Sdwks4/bX7Guu69QcraPCPjHM0zAcIhGdckAQpDLcJ0JaR2d7IgvfJ +Sh5yXD2h34UACjKb8sQzfAF41TrOo6qA7gP+m1KiY0ku/s/FbcUKev0kkVVpuRbTRJC lAcA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcppdkim1 header.b=ABxOYFT1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id f10-20020a17090ab94a00b0023747b031fasi633986pjw.135.2023.03.08.15.59.28; Wed, 08 Mar 2023 15:59:44 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@quicinc.com header.s=qcppdkim1 header.b=ABxOYFT1; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=quicinc.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230191AbjCHX6u (ORCPT + 99 others); Wed, 8 Mar 2023 18:58:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35724 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229764AbjCHX6a (ORCPT ); Wed, 8 Mar 2023 18:58:30 -0500 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 740F377CB1; Wed, 8 Mar 2023 15:58:28 -0800 (PST) Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 328NuJK1032626; Wed, 8 Mar 2023 23:58:08 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=x8QdHTj3n3h1qyzgMZiRsIIbAGbwkhxNkx/DAnILiqU=; b=ABxOYFT1fb8fcDA+zdV7D7rnxPaCgnB3ra2KDV/F91xBVFCVufz6909AejyL/ubMpsCe Xbtoa9yGbGciOgSnIxhn21g7Ea+mbjcyLLJvb1H9SqT0pDGw9UJtzKOnwGr7fprBietE H9ASkqMarUfPI0dgmLIcT/Om1zc9yjCkFwzkbpXSXrDsLUtxvr56AZkmoYOyf3QeOjij Ofyyg/kJ/nUzcVY6yG9iFdjd6uM9qqtuGqPBi3NJMHMFrl9R9p+B9sDjfhNEWo7u13oO hZ3DjtZkJJoBqnEJPU3eN9AKbq3M0b9wuc/Un0NX16UAOc+rfy26Fszbwe2wKYZmwG2p 0A== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3p6ffku8pp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 08 Mar 2023 23:58:08 +0000 Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 328Nw77E016251 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 8 Mar 2023 23:58:07 GMT Received: from hu-wcheng-lv.qualcomm.com (10.49.16.6) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Wed, 8 Mar 2023 15:58:07 -0800 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v3 09/28] sound: usb: card: Introduce USB SND platform op callbacks Date: Wed, 8 Mar 2023 15:57:32 -0800 Message-ID: <20230308235751.495-10-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230308235751.495-1-quic_wcheng@quicinc.com> References: <20230308235751.495-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01a.na.qualcomm.com (10.47.209.196) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: QhlpnzS6zR--RLwvHnutrroaI93Myt97 X-Proofpoint-ORIG-GUID: QhlpnzS6zR--RLwvHnutrroaI93Myt97 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-08_15,2023-03-08_03,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 adultscore=0 malwarescore=0 spamscore=0 phishscore=0 impostorscore=0 priorityscore=1501 clxscore=1015 bulkscore=0 mlxlogscore=879 suspectscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2303080200 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1759846055788272217?= X-GMAIL-MSGID: =?utf-8?q?1759846055788272217?= Allow for different platforms to be notified on USB SND connect/disconnect seqeunces. This allows for platform USB SND modules to properly initialize and populate internal structures with references to the USB SND chip device. Signed-off-by: Wesley Cheng --- sound/usb/card.c | 36 ++++++++++++++++++++++++++++++++++++ sound/usb/card.h | 20 ++++++++++++++++++++ 2 files changed, 56 insertions(+) diff --git a/sound/usb/card.c b/sound/usb/card.c index 26268ffb8274..9bcbaa0c0a55 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -117,6 +117,30 @@ MODULE_PARM_DESC(skip_validation, "Skip unit descriptor validation (default: no) static DEFINE_MUTEX(register_mutex); static struct snd_usb_audio *usb_chip[SNDRV_CARDS]; static struct usb_driver usb_audio_driver; +static struct snd_usb_platform_ops *platform_ops; + +int snd_usb_register_platform_ops(struct snd_usb_platform_ops *ops) +{ + if (platform_ops) + return -EEXIST; + + mutex_lock(®ister_mutex); + platform_ops = ops; + mutex_unlock(®ister_mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_usb_register_platform_ops); + +int snd_usb_unregister_platform_ops(void) +{ + mutex_lock(®ister_mutex); + platform_ops = NULL; + mutex_unlock(®ister_mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_usb_unregister_platform_ops); /* * disconnect streams @@ -909,7 +933,11 @@ static int usb_audio_probe(struct usb_interface *intf, chip->num_interfaces++; usb_set_intfdata(intf, chip); atomic_dec(&chip->active); + + if (platform_ops && platform_ops->connect_cb) + platform_ops->connect_cb(chip); mutex_unlock(®ister_mutex); + return 0; __error: @@ -946,6 +974,9 @@ static void usb_audio_disconnect(struct usb_interface *intf) card = chip->card; mutex_lock(®ister_mutex); + if (platform_ops && platform_ops->disconnect_cb) + platform_ops->disconnect_cb(chip); + if (atomic_inc_return(&chip->shutdown) == 1) { struct snd_usb_stream *as; struct snd_usb_endpoint *ep; @@ -1087,6 +1118,11 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message) chip->system_suspend = chip->num_suspended_intf; } + mutex_lock(®ister_mutex); + if (platform_ops && platform_ops->suspend_cb) + platform_ops->suspend_cb(intf, message); + mutex_unlock(®ister_mutex); + return 0; } diff --git a/sound/usb/card.h b/sound/usb/card.h index 6ec95b2edf86..94c3ae7bb4a5 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -207,4 +207,24 @@ struct snd_usb_stream { struct list_head list; }; +struct snd_usb_platform_ops { + void (*connect_cb)(struct snd_usb_audio *chip); + void (*disconnect_cb)(struct snd_usb_audio *chip); + void (*suspend_cb)(struct usb_interface *intf, pm_message_t message); +}; + +#if IS_ENABLED(CONFIG_SND_USB_AUDIO) +int snd_usb_register_platform_ops(struct snd_usb_platform_ops *ops); +int snd_usb_unregister_platform_ops(void); +#else +int snd_usb_register_platform_ops(struct snd_usb_platform_ops *ops) +{ + return -EOPNOTSUPP; +} + +int snd_usb_unregister_platform_ops(void) +{ + return -EOPNOTSUPP; +} +#endif /* IS_ENABLED(CONFIG_SND_USB_AUDIO) */ #endif /* __USBAUDIO_CARD_H */