From patchwork Mon Apr 22 22:48:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 791195 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 B6A8F4655D; Mon, 22 Apr 2024 22:50:03 +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=1713826206; cv=none; b=iq2Q71nMJO6lNwvXJvmXM40HmbSNBMTPrt/DXFGa7wANJyVvLgBoMqQVFC62hXXWl1hHsLwNUUrmnUfsRuIquJoDgjfsY5obgzKEadQeB0MmkIUEAJGgZCVAudWk6BRDuUQR8IlfYuGixEMT2Df3QXUBSTusCxH0JMS57BRUGlc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713826206; c=relaxed/simple; bh=7iOpsTMbqEwoi14/dcN8UwbNoAatyge1GCbT8mE6mNg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=NS/qFAlG+p45O6GDtv5YWNPqNTIahKdGzLeTrSnPCD5G2B4aNydV1nkSPawr+9UEBjl7YgxlQ1dFA+33xhjcrp0WXGniL+WUFHvH33vfldw0KT9sCFUeTg52aKiD192bJ7SmbbQ/dgum6t+6TRgZfpx3xOZgapHQpGGhIPsWsfk= 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=Kx9k3rtr; 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="Kx9k3rtr" 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 43MLtekb015123; Mon, 22 Apr 2024 22:49:41 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=1ti0OFMlpvxuyvNxeli7 4aYR9ZNdqw1HmgshCcMPrxo=; b=Kx9k3rtrUGA3Dn0SwlqssqD9Ckl7CkrSg4Ag hsu379BikxYoQFLf4HQNHZhWIlzwl3sSL+YC8sG6JVVbnyyVn/6M6tSq/jAZDFHs ZSGrp8uDzvVXyLOlu0oN1QdfQMnv3cCkWaIshtczhoTXbbrIkfn/yV9pLiEw0WHE rIHpQQmFF+X96XCzw5uNpJkfgsV2LS6Oh9XWI+4Qd/P7W5lG5N9tCiUzr7paYJ62 ipZiHi3O9ZJxkRXOFJ2KyTPH9Q5edbAG65ppPK2bQJ3u/4jPWy8qP9k3yewxgSyA cr4yaOUGFOpTN7RcY8xV00ul563TGGJAYZIzS69I2etjBaLWSA== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3xnr49s99u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Apr 2024 22:49:41 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 43MMnMMB022892 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Apr 2024 22:49:22 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; Mon, 22 Apr 2024 15:49:22 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v19 22/41] ASoC: usb: Add PCM format check API for USB backend Date: Mon, 22 Apr 2024 15:48:47 -0700 Message-ID: <20240422224906.15868-23-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240422224906.15868-1-quic_wcheng@quicinc.com> References: <20240422224906.15868-1-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: 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: FgSRD-s-Mvc-OkBXa-z7uL9Q06YlLVn_ X-Proofpoint-GUID: FgSRD-s-Mvc-OkBXa-z7uL9Q06YlLVn_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-04-22_16,2024-04-22_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 adultscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 impostorscore=0 mlxscore=0 phishscore=0 clxscore=1015 mlxlogscore=999 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2404220096 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 | 9 +++++++++ sound/soc/soc-usb.c | 25 +++++++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index 5b2fa0877523..8f2d3064b520 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -39,6 +39,8 @@ struct snd_soc_usb { #if IS_ENABLED(CONFIG_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); @@ -55,6 +57,13 @@ static inline const char *snd_soc_usb_get_components_tag(bool playback) return ""; } +static inline int snd_soc_usb_find_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 d21db2345966..bc77204fd2db 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