From nobody Thu Nov 14 16:28:36 2024 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 3C48420C326; Wed, 6 Nov 2024 19:34:49 +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=1730921691; cv=none; b=Kmr9gip3XQEPpJgHsGcxekOJYP7YV8YxiWU0BsJcH6oOQGzEYRvkMkCt0TAdR7J4iyQy2Mhn1lTyFmhDoLK1DIbnJFFC2E0ZdteKu5DeaZ33M2ZHMurjBQpVqlGD7AlG9LiTDgKMebKWRKUqlOUa6rKz0e/VuiZUr8+lwA7oSF0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730921691; c=relaxed/simple; bh=FiFxYrrPO0f4AZFgLNMhwElfx+Sn2apeIdL47dNx34U=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=VD8LlXRqRBd8CV7+WBOmUWPMq7ucI0WPrTfBPHEsbuKWGpyvVVyPs5WUHgjIFhtgLp5sqctucYVODf0Pkjbhxcz8c9H4PpSUnnqdPKe0F8KKnURmn28aKmz0ny7mW/07r64W9ZodWqFl4F9rlbdYNv64mj2jr3u4aK9FDzuxLiI= 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=mkAgG0xl; 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="mkAgG0xl" Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4A69iDTV004090; Wed, 6 Nov 2024 19:34:34 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= 4SJdymAG2H1VKUMjaN5IwJUm/vorM6te+0pqk5xcZUQ=; b=mkAgG0xlFqjvjbZJ tGLkUW2s02Ar1/a17YTuthRiSCjqO4gSUbrHjx7cpjp0svIIkctGKlMa/LFsFRZE JdH8IQXNc8NVLb5Qf/LCIPYgzr0sgBSU/KVCc8jMHWF9qf1IkIcV7IHkEwYzauxO el6b0Rc+vO7lE0w/aCZvQvr006WGvhYi+RIEpb7dWBS8zEW/G1+91qE17OxPtTQY PJRfgbVgttnjbhUBoRXcFdbCw+s9XNsmERMoQEKZw/uNG/m67z2b+M/CjRl2woeR eyr3b5p+UfffsudBE1HurjLHvYX7/5NVCobib6AEYOYdxZ6c/XcjRLEussNFEwrV pamlDw== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 42qhbucyew-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 06 Nov 2024 19:34:34 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 4A6JYXXX008657 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 6 Nov 2024 19:34:33 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; Wed, 6 Nov 2024 11:34:32 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v30 13/30] ASoC: usb: Add PCM format check API for USB backend Date: Wed, 6 Nov 2024 11:33:56 -0800 Message-ID: <20241106193413.1730413-14-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241106193413.1730413-1-quic_wcheng@quicinc.com> References: <20241106193413.1730413-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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-ORIG-GUID: _pi9aO-BnIjYJ89iZkq09Gr4aD6TmYsb X-Proofpoint-GUID: _pi9aO-BnIjYJ89iZkq09Gr4aD6TmYsb 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 impostorscore=0 mlxlogscore=999 clxscore=1015 priorityscore=1501 adultscore=0 bulkscore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 spamscore=0 malwarescore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2411060149 Content-Type: text/plain; charset="utf-8" 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 34240321bbca..db9ff0b4191d 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -48,6 +48,10 @@ struct snd_soc_usb { }; =20 #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_devic= e *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 bd2d68164206..c63033468e4a 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -73,6 +73,32 @@ void *snd_soc_usb_find_priv_data(struct device *usbdev) } EXPORT_SYMBOL_GPL(snd_soc_usb_find_priv_data); =20 +/** + * 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 =3D 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 su= pport * @component: USB DPCM backend DAI component