From patchwork Thu Feb 8 23:13:46 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 771783 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 878105CDCC; Thu, 8 Feb 2024 23:14:56 +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=1707434098; cv=none; b=F3s393CxFT9AHYK2RqLeccHehDFZ2omdKQ4y45dX33svEjxFkeJHtofhcdUbcjTSNLD5mURJFnotoMLp5CFy7magLTYFRbRu45nrpkHBQz53GluOKRe6Vn9iwwaw2YfELVWiQGf96A7KQl679TX7imTiK51WyfAR3dKtlc4uT+g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707434098; c=relaxed/simple; bh=Qq33CwXLVxI1jn/NLnJhzo53fs/1RVWlAKACEKQ/XQ8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qnBdutqMf0Y2WB5Tm0N8my4L/DagSxMZ9NU7ZjsedfIadK1OqKFeZx4owyFXQF1Pfwx4JkGRJOb0Eq+8V34UK1gz/RjvdjbilNDGFBaATnIVL6P1b6EteqNeHu0BmR1fxP9Y8cEt/wgfcp2+JW32q0bjW/c6SIUHtUPnu5Ekh7w= 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=IOwvJH3u; 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="IOwvJH3u" Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 418NEJIL030158; Thu, 8 Feb 2024 23:14:26 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=ykcyhuwEhB5FE+rNrTlr UbhFOhgtshSgIcmuOKFpL3A=; b=IOwvJH3un0g+fMwj6Ae/0ngGA+FDlctjGY/7 GaQCpCNAysOE81xJI4Gk+D/X6h8k6tsnfR4Hkt+5sCvREngUwtEGHkP0b9UD3JvP uGnQYK3OBbmLqVc1YYmh6iwDXXg0wZVIWUIkgE6cT95r9X/IZjN/rhSfpQ+9V5fl 559MZqaN//IpNc0mUMapxGdjoSO5STsthv8RHjqIAdzi7XYp65vRBgboc5Q2AQFM +P1yMeWENDRPXn6b+Zwbv5m5V8lyFDIS0c0xTDcb/iAneEOJc0qWTiXJ/+RfZh7x fP3Au+CRDpPpQUifJsGrga616oJikOkjaWR6EseYcj1FKieMTQ== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3w4hhkbajb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 08 Feb 2024 23:14:26 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 418NEPFf005609 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 8 Feb 2024 23:14:25 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 15.2.1118.40; Thu, 8 Feb 2024 15:14:24 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v14 33/53] ASoC: usb: Add PCM format check API for USB backend Date: Thu, 8 Feb 2024 15:13:46 -0800 Message-ID: <20240208231406.27397-34-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240208231406.27397-1-quic_wcheng@quicinc.com> References: <20240208231406.27397-1-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: 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-ORIG-GUID: CTVCLWGaqzy-bGHnA3UkE_crcdQJWCZP X-Proofpoint-GUID: CTVCLWGaqzy-bGHnA3UkE_crcdQJWCZP X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-08_11,2024-02-08_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxlogscore=999 spamscore=0 adultscore=0 phishscore=0 mlxscore=0 malwarescore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401310000 definitions=main-2402080131 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 | 2 ++ sound/soc/soc-usb.c | 25 +++++++++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index c0c6b5abacdf..d9fc83180c56 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -38,6 +38,8 @@ struct snd_soc_usb { }; const char *snd_soc_usb_get_components_tag(bool playback); +int snd_soc_usb_find_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); diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index a1e0363bd760..e3556c397b39 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -80,6 +80,31 @@ void *snd_soc_usb_find_priv_data(struct device *dev) } EXPORT_SYMBOL_GPL(snd_soc_usb_find_priv_data); +/** + * snd_soc_usb_find_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_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_format); + /** * snd_soc_usb_allocate_port() - allocate a SOC USB device * @component: USB DPCM backend DAI component