From patchwork Fri Aug 23 20:00:41 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 823041 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 CE0C619AA56; Fri, 23 Aug 2024 20:02:00 +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=1724443323; cv=none; b=aTgUyW6kZeDyg+E8UrCOv7vgjqhgaDWPu1EKDJfsZgVTN/6sdnmcuUV71iePpS6hngdzpWKpHlqImEZclH7Oubb7ioA6dcYdJmmyiV8pdnaSTvcfzZiJA+3IO4ttjkqWNGHF5xBtC4kle2N8941bRIxDlExHxpn2lfqxtYkLvfA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724443323; c=relaxed/simple; bh=zMmhNpjLh4rfZ/YFjo0xEXjg+PxQzCwuPXGdjxR+Fkg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=gxRcHv0tVhQrJpeZX9+oduuCowxT0aZGvX9tGcg6tx6j6GsRX11egSOMdNJnJXoWCAeV0JPwuqHy0hFKU4zu1vT7lqaoIdZ9iz8R4kltEPF8KTkW3puFsv3eoo50pPMVYflK2pI/LkoHAut1r01glUAOZdSHIgTaDYzhezkJ6sc= 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=JYM24jf+; 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="JYM24jf+" Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 47NAm5Lo026184; Fri, 23 Aug 2024 20:01:19 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=qcppdkim1; bh=1Nf3xEcEEV2fS0OlpWhRtiSC qmN62g6JSqKx/uhd1FA=; b=JYM24jf+o8vABVwuBxN4gbEGEdzvfXb3c7c6uBhc lKtez294lwi71fmjXhiH3aCKXVLIBR6KO9ffNEgf6NtRVYpCuQxGJtAL9Cj9F3sX 4Ba3FjGO31k1nRPwwXyPblVIj4mxfYMLLm/zoYsJ/PBak3HjZxSyF1IVF4K3442C quBLYD3Hx3DoEOb+XMdQnUIw06emn56OErjJ+Gq34/7VO4bkjT0kf0+nrwgiwQ8i 2cUX/NGd6kVoF/poCQpQYzuu/5HEjhQU8DNH5i+vFr2anVaguRdtA2fh5SiDjXrL SH4c9RS8xy+8O7AW6rp6BO674KgpWKckp7NbHWvgMx+mSg== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 416s0619ku-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 23 Aug 2024 20:01:18 +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 47NK1HUB001772 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 23 Aug 2024 20:01:17 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; Fri, 23 Aug 2024 13:01:16 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , , Wesley Cheng Subject: [PATCH v25 13/33] ASoC: usb: Add PCM format check API for USB backend Date: Fri, 23 Aug 2024 13:00:41 -0700 Message-ID: <20240823200101.26755-14-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240823200101.26755-1-quic_wcheng@quicinc.com> References: <20240823200101.26755-1-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: 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: 2GbYSoKGcNjmcpHC9N1ngHjLk5pyrX0S X-Proofpoint-ORIG-GUID: 2GbYSoKGcNjmcpHC9N1ngHjLk5pyrX0S 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=2024-08-23_16,2024-08-23_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 adultscore=0 suspectscore=0 malwarescore=0 mlxscore=0 spamscore=0 clxscore=1015 mlxlogscore=999 lowpriorityscore=0 phishscore=0 priorityscore=1501 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408230147 Introduce a helper to check if a particular PCM format is supported by the USB audio device connected. If the USB audio device does not have an audio profile which can support the requested format, then notify the USB backend. Signed-off-by: Wesley Cheng --- include/sound/soc-usb.h | 10 ++++++++++ sound/soc/soc-usb.c | 25 +++++++++++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index a5a9dd69fcec..ef667b3672bf 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -45,6 +45,9 @@ struct snd_soc_usb { }; #if IS_ENABLED(CONFIG_SND_SOC_USB) +int snd_soc_usb_find_supported_format(int card_idx, + struct snd_pcm_hw_params *params, int direction); + 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); @@ -55,6 +58,13 @@ void snd_soc_usb_free_port(struct snd_soc_usb *usb); void snd_soc_usb_add_port(struct snd_soc_usb *usb); void snd_soc_usb_remove_port(struct snd_soc_usb *usb); #else +static inline int snd_soc_usb_find_supported_format(int card_idx, + struct snd_pcm_hw_params *params, + int direction) +{ + return -EINVAL; +} + static inline int snd_soc_usb_connect(struct device *usbdev, struct snd_soc_usb_device *sdev) { diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index 794e00857a7e..c5646daa7cda 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -74,6 +74,31 @@ void *snd_soc_usb_find_priv_data(struct device *dev) } EXPORT_SYMBOL_GPL(snd_soc_usb_find_priv_data); +/** + * snd_soc_usb_find_supported_format() - Check if audio format is supported + * @card_idx: USB sound chip array index + * @params: PCM parameters + * @direction: capture or playback + * + * Ensure that a requested audio profile from the ASoC side is able to be + * supported by the USB device. + * + * Return 0 on success, negative on error. + * + */ +int snd_soc_usb_find_supported_format(int card_idx, + struct snd_pcm_hw_params *params, int direction) +{ + struct snd_usb_stream *as; + + as = snd_usb_find_suppported_substream(card_idx, params, direction); + if (!as) + return -EOPNOTSUPP; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_find_supported_format); + /** * snd_soc_usb_allocate_port() - allocate a SOC USB port for offloading support * @component: USB DPCM backend DAI component