From patchwork Thu Aug 1 01:17:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816215 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 6EA8215746D; Thu, 1 Aug 2024 01:18:35 +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=1722475117; cv=none; b=IO4jTaij62RpT5Y1356K2niAOwPqM3C2PwBRld/i3t9vrZhfeTzquW0qORuV3LZjL5NoHBNTa1aQ6byKBasZMk3Jf0t2zmj8ZojDwYT3mjgtiklTnsgttTYIMCPV/aCvizjLogoYOJjCaqbMjVdutR84GanYg4cqZbRbClVOrhU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722475117; c=relaxed/simple; bh=5D+mPwaUMmWNXrW1AfnwWvndBtdg2eDUNCCsQlJ9glc=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=p63NAMhKqty8hWbAFAShK+29hRV50bJElXoAgYAiDpfjKVIJEhxKOgw3iM6jjn0WzliGvLFEWviDwaFnu7wUotVjCs/9f1SINZ+fLL7bQBTMQCDECV3xC/FEYdEOJ5gpDXoXn7LTCqUaVGH+jPUtREQketg3BeF2rQhFJFKT+r0= 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=HA12HgE1; 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="HA12HgE1" 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 46VDgOpY029572; Thu, 1 Aug 2024 01:17:52 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=qcppdkim1; bh=V0SsoROSKuWHPcxVRs3FThND enkLYwa5QV1abLWIvVY=; b=HA12HgE1zGhdCjiTJVXZaeXqyqVtSYFVfWuc2sUW JtmFRqfX3mFWSsdsZiYQLilkwy5BzH4FfKpkEcCQlWx4w5LGW6xNkWBhYh8TsfrV BMGPx7KWlglRPXnqP/hMZMTCBVAhKT9NntK5KlVMhmsvfrz6yRhWV+U3V2Eg5jJB R7i3Hr3RvuG56tUNdvSZAutheTjqNPXG5eY3qPi+XLhncbd3xCHChE2sc21boUen rkHGP7LHBKq4xeRBejTTU2ndfLEnz3y9o4JusdNHJT1X/QrA/35G8xtSU7x2PVit Y9v+yydAwvbAojBf73fxln8wvEcKHV70cn9aAZF9kXDK6A== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw446egr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:52 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HpNk030399 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:51 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, 31 Jul 2024 18:17:50 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 33/34] ASoC: usb: Add PCM format check API for USB backend Date: Wed, 31 Jul 2024 18:17:29 -0700 Message-ID: <20240801011730.4797-34-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-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-GUID: eaABEy1t2unmemgBOhV1_OuVtrIQlSy7 X-Proofpoint-ORIG-GUID: eaABEy1t2unmemgBOhV1_OuVtrIQlSy7 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 clxscore=1015 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 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 | 10 ++++++++++ sound/soc/soc-usb.c | 25 +++++++++++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index a167e3de0a78..7c875d053981 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -52,6 +52,9 @@ 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 *dev); @@ -68,6 +71,13 @@ 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 b891beb77001..9cb79ad908dd 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -162,6 +162,31 @@ void *snd_soc_usb_find_priv_data(struct device *dev) } 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 device * @component: USB DPCM backend DAI component