From patchwork Thu Aug 29 19:40:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 823593 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 A92DB1B9B59; Thu, 29 Aug 2024 19:41:53 +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=1724960516; cv=none; b=o1ZoEF9EHXe+KFZoX3MwZTfcCZ/WvPCMPxiIG5pFcKN3PNrO1qsGmEZ8CZLWjv88z57+Jnk1TiYi53PMPiDrirEqzZx6IbzQYidmizJmEhW2bWXGVvPVrqWHzSdAxCq2Qz0HNXEAkLvmFCV7i21r9zVHp0WgQAby0XdTgxSdRis= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724960516; c=relaxed/simple; bh=7VvEI5tVKTuZOdE1RPfQR1J/kfWt+4/5pdJh7/hCIKA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=A5xkr8i2xtMUhTo2//EFzxGKHRtftf6pj1EiDa7d9cRaLS87Z6n/aWr11d872eEBQQocRN7J1b6Y8pWSrg8Z7r37v++OcB+P/ZynSVwQmNCfjspO7pdu1WsvipKutGyHwxF7UL3BRRCWyvDmTxcGp3CIrRdVBJjIgIbmC16KgPo= 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=MAJe8S3D; 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="MAJe8S3D" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 47TIH5Tm028956; Thu, 29 Aug 2024 19:41:29 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= /m/fWcv6m+pycm1SCAT+kAEj5wv4ufFmgsS4RSYMq5I=; b=MAJe8S3DYIaW2ZOn JnBLiDguW03HCq68KMHjsoks1d8ODpR9Em2oIBFFqIHMYcPfACv41S3zi8iKJpRE hTVzJKugQJbM0NtcLKVeRidByZg9CV27QeiQBC543Y+GSmZRq9fjgLJqGwJ7h29L 5G3TzcVu52wCZzkJ0ROKsl0yEKebYXkHeR5b0xzqT+npJJ1XrzZBGVsemEnKFwmX 7hCZ36yxDkd1VZisG0/HaTJ5Eb3deaD+RbnC3L5oFvmQUQu+uUcDdD/LKX3dA+7c MBR+1gEVjjUrQRC9E+QHJY2CSDNh/q9Zt6C9LYVPKBenC/WwD2I/qg8Bu2aP8aD4 5gomuQ== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 41ax4mg6hj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Aug 2024 19:41:29 +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 47TJfSDB016270 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Aug 2024 19:41:28 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, 29 Aug 2024 12:41:27 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , , Wesley Cheng Subject: [PATCH v26 14/33] ASoC: usb: Create SOC USB SND jack kcontrol Date: Thu, 29 Aug 2024 12:40:46 -0700 Message-ID: <20240829194105.1504814-15-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240829194105.1504814-1-quic_wcheng@quicinc.com> References: <20240829194105.1504814-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) 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: wPSe-U3C_8LPAHsnq1vyPvOQdWl1cNc6 X-Proofpoint-ORIG-GUID: wPSe-U3C_8LPAHsnq1vyPvOQdWl1cNc6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-29_06,2024-08-29_02,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=798 impostorscore=0 spamscore=0 suspectscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 malwarescore=0 phishscore=0 mlxscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408290139 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. Signed-off-by: Wesley Cheng Reviewed-by: Pierre-Louis Bossart --- include/sound/soc-usb.h | 17 +++++++++++ sound/soc/soc-usb.c | 62 ++++++++++++++++++++++++++++++++++++++++- 2 files changed, 78 insertions(+), 1 deletion(-) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index b550ee87b748..5c788cbfa82e 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -6,6 +6,8 @@ #ifndef __LINUX_SND_SOC_USB_H #define __LINUX_SND_SOC_USB_H +#include + /** * struct snd_soc_usb_device * @card_idx - sound card index associated with USB device @@ -54,6 +56,10 @@ 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 *dev); +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); + 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); @@ -84,6 +90,17 @@ static inline void *snd_soc_usb_find_priv_data(struct device *dev) 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 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 8ade2060d8fe..3d5354298206 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -4,8 +4,10 @@ */ #include #include -#include + +#include #include + #include "../usb/card.h" static DEFINE_MUTEX(ctx_mutex); @@ -57,6 +59,64 @@ 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\n"); + 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_find_priv_data() - Retrieve private data stored * @dev: device reference