From patchwork Fri Oct 11 00:06:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13831584 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 174FB1372; Fri, 11 Oct 2024 00:07:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728605266; cv=none; b=maDEL+tdrlfHXIdkELfXzOS/RD1UYTi+51FmUSryMnrzHeBasHF0tyRfOhxfqplNerak86ODh7i2gUZoSTIDefLZrLt7aP/zQDEIELZBF0gG8iMw3r2XTJzUfatx5KSzKdLBCEk3tv1Nkvz/BREUHkKV+DU9DxCo9zPTxC4ZiOg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728605266; c=relaxed/simple; bh=IkMCCmmayPEOkLVBZv1cFnxPTwhINuoT5uWbQVxY0J8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=It3SLuo75W7QuWa1L1wPozQcwH7dzN8Gg5SbkAmVDmHH1LYcAKMVJNm9jMHHCdtAJMGMAbqxL+GZEhvGNCdmvYbFmEKhrQScCd2YzYw/YD/dPnIje67GgDerQEw17cWDPKIj5l03nikqvBCpAbeI2VLl6m+F+zDxMbxmbvUUc0k= 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=irewCfpQ; arc=none smtp.client-ip=205.220.180.131 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="irewCfpQ" Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 49ACVLfK026795; Fri, 11 Oct 2024 00:07:13 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=irewCfpQkxYznFm+ 27jcMGvEfdi4NmBD7FMHVoO+gPpbO4R1moyjq3QZTVT3fWol1boYtCYybCsbScEV HG3Tk5Bka5x9pZAdB3Q8tjrbv4qj7tMZh8b8pn2vmevjdWxUUXK6O/WuwmY61mQg XqfLoywiv4Nqffg9RAZRs5x73VFZhPqhGAphTrqsshWy34TN/RSfpkloGrLWmzjU 5CcFyZRRm2yXWd1lUoHAJjLgZwQbj32qJZsHySR1yd2Fkq+8ryKuoqGSpWIJu2P3 Z0MAv/FHJwSO8Vgfx214YlJaUK2z8hTakxcS9rNcK6RdePC+apAgsRh4gh1JN4x9 HH9AaQ== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 425c8qydrf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Oct 2024 00:07:13 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 49B07CRK015313 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Oct 2024 00:07:12 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; Thu, 10 Oct 2024 17:07:11 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , , Wesley Cheng Subject: [PATCH v28 17/33] ASoC: usb: Create SOC USB SND jack kcontrol Date: Thu, 10 Oct 2024 17:06:18 -0700 Message-ID: <20241011000650.2585600-34-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241011000650.2585600-1-quic_wcheng@quicinc.com> References: <20241011000650.2585600-1-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-GUID: jUgQjHyHxfVU8diU6yNl3t7q_X1IRIWO X-Proofpoint-ORIG-GUID: jUgQjHyHxfVU8diU6yNl3t7q_X1IRIWO 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 adultscore=0 lowpriorityscore=0 mlxlogscore=960 malwarescore=0 suspectscore=0 priorityscore=1501 mlxscore=0 spamscore=0 phishscore=0 clxscore=1015 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410100159 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