From patchwork Thu Jan 26 03:14:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13116521 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A5EE1C61DA2 for ; Thu, 26 Jan 2023 03:15:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236135AbjAZDPp (ORCPT ); Wed, 25 Jan 2023 22:15:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45246 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235965AbjAZDPk (ORCPT ); Wed, 25 Jan 2023 22:15:40 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 943F565F02; Wed, 25 Jan 2023 19:15:09 -0800 (PST) Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 30Q3EgC7003775; Thu, 26 Jan 2023 03:14:49 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=9YaFd6y9j4FenaXuzXxC96Owf6Vaq4DV+FD8SKInc2E=; b=d1wXSEP48u2e5+zzWUFAmu/ckZ9QGtC7wPZa507gF+NIOhW0nXfCmNR1NBdIpMRBjkcF mEWkAoiMSlTmLMjbzeEDtctfaKPbt+k04KSEmgxPkLxFrhHSGrWaCnrgHXCxKe8e07bb Cp8X0YYee6L8tc+5oMTFdpXRtVTof3hHhvJ0UXJeSQahR2xQiMxx8FHrrywbL/IP7Imr oK420ht1ENPxCustA4XzCZhfxCpsLsDytftELPZvBLm6iIUiIRW07/z6cgtm9v8EqtHZ ohDzShXPfxhH1fRvjVqjOBTUJIJN+ugdhEQ4cElLpTybEldOsESlki5G0cg8nM+9IavD lQ== Received: from nasanppmta04.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3nbd7arbma-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 26 Jan 2023 03:14:49 +0000 Received: from nasanex01c.na.qualcomm.com (nasanex01c.na.qualcomm.com [10.45.79.139]) by NASANPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 30Q3En9T031339 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 26 Jan 2023 03:14:49 GMT Received: from hu-wcheng-lv.qualcomm.com (10.49.16.6) by nasanex01c.na.qualcomm.com (10.45.79.139) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.36; Wed, 25 Jan 2023 19:14:48 -0800 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [RFC PATCH v2 18/22] sound: soc: soc-usb: Add PCM format check API for USB backend Date: Wed, 25 Jan 2023 19:14:20 -0800 Message-ID: <20230126031424.14582-19-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230126031424.14582-1-quic_wcheng@quicinc.com> References: <20230126031424.14582-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) To nasanex01c.na.qualcomm.com (10.45.79.139) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: t8Rm8HeS8Pc2SnXg9o-kF6dCC6jY6ZmE X-Proofpoint-GUID: t8Rm8HeS8Pc2SnXg9o-kF6dCC6jY6ZmE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-01-25_14,2023-01-25_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 malwarescore=0 spamscore=0 mlxlogscore=999 impostorscore=0 adultscore=0 clxscore=1015 priorityscore=1501 phishscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301260028 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Introduce a check for 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 | 3 +++ sound/soc/soc-usb.c | 13 +++++++++++++ 2 files changed, 16 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index ec422a8a834f..d6a0a1bd9c60 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -21,6 +21,9 @@ struct snd_soc_usb { void *priv_data; }; +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, int card_idx); int snd_soc_usb_disconnect(struct device *usbdev); void snd_soc_usb_set_priv_data(struct device *dev, void *priv); diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index bfce6c9609e1..130cf12505f3 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -94,6 +94,19 @@ void snd_soc_usb_set_priv_data(struct device *dev, void *priv) } EXPORT_SYMBOL_GPL(snd_soc_usb_set_priv_data); +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_add_port() - Add a USB backend port * @dev: USB backend device