From patchwork Tue Jan 21 21:05:02 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13946579 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 8EDE320767F; Tue, 21 Jan 2025 21:06:11 +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=1737493573; cv=none; b=tVyiVYFW/44R8qKNB4oLZCKMs++RCRwRZjU7JnPafJVLMrteK5c9WD5GtQ2poTznPKVPwB+TTqo08L1xgT2K0rwBuvIKEFcU4aYmWOsiYNKuTCAf3BTvyNAm14o8ijxOyuzaJuW/khzRJ/dm5CCFgrITS9apXn0UAFLouCnLTUE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737493573; c=relaxed/simple; bh=YR1+izuNzCYaDUFS6TU5MxPxuN1lMBFoD+8vt+P3foU=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=BFDL3VWWBE2DRVEbXlKeVxDipnPr1GiRUxJ7zq7kt9cAvmN/PwTSRGSQmTgigU0+GnHtZL9YeNYuXnqMmypwWg3yQXv0OiBypUExoxzhhgvypGQPZhU9Vr/hDVpfDbGEOaJzfiCWN+nUU2C+L4Paf6OMrMb8EXUJQOliM/JwA3M= 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=GfDIzysj; 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="GfDIzysj" 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 50LHQawG024187; Tue, 21 Jan 2025 21:05:34 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= 2/mPp97m5+qbF468aYFCR+wGg+UmhYmA1t00N8yB9/g=; b=GfDIzysjYpug/XrN nt8DJiBmYL5KSf9XhQN2oX+/yKqpXW/GpsVnRmGJ4h0G32kqDvqpbvSSqWwfjaCt 4j09WTswJi+O60yLbVncgLXP75WbLzEPYbG6nSh9uwdcl8l6lQN0BQVx3eTv8dWA 2ZHdHFJgKOMXHhF+fVwyPvihzhnJr4WzB32BCPG02KSIK2meTn5adoDivaN741lA S1Wdq2cLkILclRCo9Oynx1SftfHwUmA8vBIFjuRALaj2VtZyR15/s2uBYWACg13a i5tBaw6C0JTAnRueSpNOscJnMx8mz3M4mSbVYoQzrGvlrtFGZgvdC2kEGOUPGBvy MyGPjw== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 44ag00rgg4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jan 2025 21:05:33 +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 50LL5XGW003314 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jan 2025 21:05:33 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; Tue, 21 Jan 2025 13:05:32 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v34 15/31] ASoC: usb: Add PCM format check API for USB backend Date: Tue, 21 Jan 2025 13:05:02 -0800 Message-ID: <20250121210518.2436771-16-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250121210518.2436771-1-quic_wcheng@quicinc.com> References: <20250121210518.2436771-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-input@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: hjPP9LPBJYeaXYvWwtouah56l3eO-KCR X-Proofpoint-ORIG-GUID: hjPP9LPBJYeaXYvWwtouah56l3eO-KCR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-01-21_08,2025-01-21_03,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 spamscore=0 malwarescore=0 suspectscore=0 clxscore=1015 impostorscore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 phishscore=0 mlxlogscore=999 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501210167 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. Reviewed-by: Pierre-Louis Bossart Signed-off-by: Wesley Cheng --- include/sound/soc-usb.h | 11 +++++++++++ sound/soc/soc-usb.c | 26 ++++++++++++++++++++++++++ 2 files changed, 37 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index 8b838861efc3..9c5aa79fc053 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -48,6 +48,10 @@ 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 *usbdev); @@ -58,6 +62,13 @@ 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 6528c6253dfc..2902cb3afcaf 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -71,6 +71,32 @@ void *snd_soc_usb_find_priv_data(struct device *usbdev) } 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