From patchwork Wed Nov 6 19:33:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13865490 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CA6D2101A1; Wed, 6 Nov 2024 19:34:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730921699; cv=none; b=TLuz2ktyHDWVNnvqDG3+zrDb01y/vluImu1AevTcFXDI7/SiaMGHcla2YP+5TDFmRT3UxFuYoN5P0LVAPIqdO7K3hesJfNC/VW9bWpwSXOERO/R4eRtp+7p6HOIJRoxx6W4Te0rfSw5YPkqpD7fTQyDm4vdZ7uSLea28uWguph8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730921699; c=relaxed/simple; bh=IkMCCmmayPEOkLVBZv1cFnxPTwhINuoT5uWbQVxY0J8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=LLqsotoiuzlcWC9WdY+AB+2WIQ6OeN3Y9Tedh6JkqjXlY7fsnNwpD75wqUDd0UQs3IdAiAevIucozUo7Pjb6b21Ye7XivzI6X2r21GVDclqIoNBYNXTNErOirndF+boVti6s6hmB0fwjY4DI1pZwj8t/oImLl5hscL28Fa/uduo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=mE/m/AwA; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="mE/m/AwA" Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4A6AiTr0004338; Wed, 6 Nov 2024 19:34:34 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= 8f3ltJ7kTNBqD63IJWPrINYxMdkP2wD5fAwRcNzFY10=; b=mE/m/AwAY7ahX25J SYvJOi25KyDSGQiru+E8SheQY2QexBCoY4CMYyiWSvS0LsHvbRIcsFkZM3uWso5+ mzBwJrgUTAHqiejNxurQbnTOZbw2uYzNm/UqS3KHs/vg08ieuN7CCrUCVwNZhyrw Ab6NgcqlSoK5mLTHFji1r0xEyY+6kqkHXJq0qNi9PVlOfrwUIDNVLaAO2weSr+nz n8IVW4HTHy3r6mrM2oswpFVQ8+SVnie29OuuBEyKbkFRo7wdRiUoMIoUU8xfLdW2 lCHkD2UNYi8qjkK74yHHCBml8SrlwjNY5Hp6oCDmoJtm4xwIAbHrgMAq+BniZ51/ jJKxmA== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 42qvhd2y93-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 06 Nov 2024 19:34:34 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 4A6JYXlg030265 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 6 Nov 2024 19:34:33 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 15.2.1544.9; Wed, 6 Nov 2024 11:34:32 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v30 14/30] ASoC: usb: Create SOC USB SND jack kcontrol Date: Wed, 6 Nov 2024 11:33:57 -0800 Message-ID: <20241106193413.1730413-15-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241106193413.1730413-1-quic_wcheng@quicinc.com> References: <20241106193413.1730413-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) 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-ORIG-GUID: B_tJ_c2LsOAHzVcUksBJry8vSWEa7RU3 X-Proofpoint-GUID: B_tJ_c2LsOAHzVcUksBJry8vSWEa7RU3 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=913 suspectscore=0 adultscore=0 clxscore=1015 mlxscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 malwarescore=0 impostorscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411060149 Expose API for creation of a jack control for notifying of available devices that are plugged in/discovered, and that support offloading. This allows for control names to be standardized across implementations of USB audio offloading. Reviewed-by: Pierre-Louis Bossart Signed-off-by: Wesley Cheng --- include/sound/soc-usb.h | 23 +++++++++++ sound/soc/soc-usb.c | 89 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 112 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index db9ff0b4191d..587ea07a8cf5 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -56,6 +56,12 @@ int snd_soc_usb_connect(struct device *usbdev, struct snd_soc_usb_device *sdev); int snd_soc_usb_disconnect(struct device *usbdev, struct snd_soc_usb_device *sdev); void *snd_soc_usb_find_priv_data(struct device *usbdev); +int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack); +int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component); +int snd_soc_usb_enable_offload_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack); + struct snd_soc_usb *snd_soc_usb_allocate_port(struct snd_soc_component *component, void *data); void snd_soc_usb_free_port(struct snd_soc_usb *usb); @@ -86,6 +92,23 @@ static inline void *snd_soc_usb_find_priv_data(struct device *usbdev) return NULL; } +static inline int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack) +{ + return 0; +} + +static inline int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component) +{ + return 0; +} + +static inline int snd_soc_usb_enable_offload_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack) +{ + return 0; +} + static inline struct snd_soc_usb * snd_soc_usb_allocate_port(struct snd_soc_component *component, void *data) { diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index c63033468e4a..ab914878e101 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -4,7 +4,10 @@ */ #include #include + +#include #include + #include "../usb/card.h" static DEFINE_MUTEX(ctx_mutex); @@ -56,6 +59,92 @@ static struct snd_soc_usb *snd_soc_find_usb_ctx(struct device *dev) return ctx ? ctx : NULL; } +/* SOC USB sound kcontrols */ +/** + * snd_soc_usb_setup_offload_jack() - Create USB offloading jack + * @component: USB DPCM backend DAI component + * @jack: jack structure to create + * + * Creates a jack device for notifying userspace of the availability + * of an offload capable device. + * + * Returns 0 on success, negative on error. + * + */ +int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack) +{ + int ret; + + ret = snd_soc_card_jack_new(component->card, "USB Offload Jack", + SND_JACK_USB, jack); + if (ret < 0) { + dev_err(component->card->dev, "Unable to add USB offload jack: %d\n", + ret); + return ret; + } + + ret = snd_soc_component_set_jack(component, jack, NULL); + if (ret) { + dev_err(component->card->dev, "Failed to set jack: %d\n", ret); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_setup_offload_jack); + +/** + * snd_soc_usb_disable_offload_jack() - Disables USB offloading jack + * @component: USB DPCM backend DAI component + * + * Disables the offload jack device, so that further connection events + * won't be notified. + * + * Returns 0 on success, negative on error. + * + */ +int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component) +{ + int ret; + + ret = snd_soc_component_set_jack(component, NULL, NULL); + if (ret) { + dev_err(component->card->dev, "Failed to disable jack: %d\n", ret); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_disable_offload_jack); + +/** + * snd_soc_usb_enable_offload_jack() - Enables USB offloading jack + * @component: USB DPCM backend DAI component + * @jack: offload jack to enable + * + * Enables the offload jack device, so that further connection events + * will be notified. This is the complement to + * snd_soc_usb_disable_offload_jack(). + * + * Returns 0 on success, negative on error. + * + */ +int snd_soc_usb_enable_offload_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack) +{ + int ret; + + ret = snd_soc_component_set_jack(component, jack, NULL); + if (ret) { + dev_err(component->card->dev, "Failed to enable jack: %d\n", ret); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_enable_offload_jack); + /** * snd_soc_usb_find_priv_data() - Retrieve private data stored * @usbdev: device reference