From patchwork Thu Jan 16 23:28:08 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 858130 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 DD252246A27; Thu, 16 Jan 2025 23:29:05 +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=1737070148; cv=none; b=XCir86st6alK8seodaHDX00bjt1e/+lPqg8D3bLME/8oA5GoTg8LXM3vqjclLJ/7NjtI6jmPw56zn53MHBnFxJ+IlUJAp2VuDj8m+vBO7j2zBlyg1G7Jd1GwqbiAHFz4t6mA1liXxklZ0DdId+Dsw1tSbG38QUQw3nX7nhzl93w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737070148; c=relaxed/simple; bh=X/Bvl1S4+JNrZMbRaJr50aupT5ChpkpNPUFwxAxdL+A=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ETwBz+PlU7S86JgHcnrh86iRTm8wTQGc8XAfgvo9XyOWMfMnw5+zFmsgG1YX7xVPj44dSZgx4odsBHNtUNSxe9EE2k73kqTjgxJVZR+aspqXrXiMmaqLGWzEB/68aHAStnwzQQmyoT0uQNRLHGzXcGcAmWDQsn+/RZN7n9OKSns= 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=BzX0dpKo; 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="BzX0dpKo" Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 50GN7gEG011119; Thu, 16 Jan 2025 23:28:46 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= xByViXVdmWC7x1UA5M9loILdhYftVOahYhTDpfeOINY=; b=BzX0dpKoiixuCRA9 FQ8KcvVzLrnCKTEETDAnDBqX4wZqd1OntvTcloJBlGuD84e8bKJwtLG5CFiO7lOQ 0xeo6sHa+qljS34k/hYCGdu7W4bDmBQOuKP9LvmFE8MlFeSavrSSmg137GpBUQ+H jECwbm7PniJ3L3J0J0FL5gfN8JBUSH7nqN8AWkTvRHfDqlu1695udNwtIP5sxWvj IrSf4dceIDuA3v4wHGkIY9AzNiu66qx7jHSdJm/UF4H7fj55sAD0xDfqtfKzKBl6 rbLapsiyKJihHwsssHoI66o8orBRmEQeayUTo4pAls84gUHg9fb9EXJ53p89EVwR fkjfQQ== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 447bgw810t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Jan 2025 23:28:46 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 50GNSjdX019290 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 Jan 2025 23:28:45 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; Thu, 16 Jan 2025 15:28:45 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v33 15/31] ASoC: usb: Add PCM format check API for USB backend Date: Thu, 16 Jan 2025 15:28:08 -0800 Message-ID: <20250116232824.3748438-16-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250116232824.3748438-1-quic_wcheng@quicinc.com> References: <20250116232824.3748438-1-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: RIuazPzl8vqF2GlMbzsBZNF55UTFPmbT X-Proofpoint-ORIG-GUID: RIuazPzl8vqF2GlMbzsBZNF55UTFPmbT 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=2025-01-16_10,2025-01-16_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 adultscore=0 bulkscore=0 mlxscore=0 impostorscore=0 clxscore=1015 lowpriorityscore=0 phishscore=0 mlxlogscore=999 malwarescore=0 suspectscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501160174 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 bd4c5632bb62..b36fdf4d0853 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 3b8e47e3f469..8f7f19c55681 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