From patchwork Fri May 24 00:10:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13672556 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 30A8179C2; Fri, 24 May 2024 00:11:19 +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=1716509483; cv=none; b=WBB6yp9DnCE6Ulm2Wzaljrba0cSXN0OH6fFYKZ6nuB5iyYEcjvQfLJqQJT+b1weTE3KKCCdD7j04ntkzyTrKcofN5w9G2FtUAn44MlS7Ih+JXGAGBagLPvf1QHYXLZKj8UJQi1IcTYx78Me/QkltPfZURigVEevI/mSHz2cqGcY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716509483; c=relaxed/simple; bh=vTcLhZf2R8paXkJQUxSXklktGwb+rhfT7p4hKA16e8Q=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=V3HoK48qGTmVlb4VJptNjOiRn6RgbO/owaWotiRqm2840nykVYqeACki+PRt1rwFRmWbUYOuaPv7bsk/fgSIlVUSHTzvejXwaAwYORRLJhRkQg/mBkyU+8yNHHnOzSM7LeR/wPVUNJBZHHs3HRcrOXw+hBxRcbWuGWWUzmmq4fc= 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=GBD/Fd+L; 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="GBD/Fd+L" Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 44NNPBEi026229; Fri, 24 May 2024 00:11:00 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=uyF8k4GY10EkPruZFkeC0IFO j0f++wkbH8Kw38rv/5Y=; b=GBD/Fd+Li9sEpyikJyu66gJbVp62Hq88hnL4Pf+0 FNzsRcBwoj7tYCB/nNEfg5B9Z09OBK+/vXa5P9oE2HpZgocAck+aep1etJ06JVKp +S3PGyfmigoFO/1qhDHuz+qgE1W3hA4kzEsSGorGHssGY6p3bSa/zN5IyOwQMH6T 4Jh7+nhHTC/xRAto6yPbMWiCCwepPvntFP3z/JLGuTDVsxI7yRRWP8nLP0r2XuY2 cnJ4+0qiwUAZX63hKfrAoF+RA8RxGWWl23rM3vl9WPUBbEsuSxKTwGY1pYV5Lg8L wWXpC5UmT0PAot99lP6xBt+3oHiJK/Drzhd6YY9r4F2mVA== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3yaa978qx6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 May 2024 00:11:00 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 44O0Awc1009780 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 May 2024 00:10:58 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, 23 May 2024 17:10:58 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v22 14/38] ALSA: usb-audio: Save UAC sample size information Date: Thu, 23 May 2024 17:10:19 -0700 Message-ID: <20240524001043.10141-15-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240524001043.10141-1-quic_wcheng@quicinc.com> References: <20240524001043.10141-1-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: LlW-xQYsLjHgUyN2_GIpxoL_PA7uKif6 X-Proofpoint-GUID: LlW-xQYsLjHgUyN2_GIpxoL_PA7uKif6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-05-23_13,2024-05-23_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 lowpriorityscore=0 mlxscore=0 clxscore=1015 spamscore=0 phishscore=0 impostorscore=0 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2405230166 Within the UAC descriptor, there is information describing the size of a sample (bSubframeSize/bSubslotSize) and the number of relevant bits (bBitResolution). Currently, fmt_bits carries only the bit resolution, however, some offloading entities may also require the overall size of the sample. Save this information in a separate parameter, as depending on the UAC format type, the sample size can not easily be decoded from other exisiting parameters. Signed-off-by: Wesley Cheng --- sound/usb/card.h | 1 + sound/usb/format.c | 1 + 2 files changed, 2 insertions(+) diff --git a/sound/usb/card.h b/sound/usb/card.h index 2884912adc96..02e4ea898db5 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -15,6 +15,7 @@ struct audioformat { unsigned int channels; /* # channels */ unsigned int fmt_type; /* USB audio format type (1-3) */ unsigned int fmt_bits; /* number of significant bits */ + unsigned int fmt_sz; /* overall audio sub frame/slot size */ unsigned int frame_size; /* samples per frame for non-audio */ unsigned char iface; /* interface number */ unsigned char altsetting; /* corresponding alternate setting */ diff --git a/sound/usb/format.c b/sound/usb/format.c index 3b45d0ee7693..5fde543536a8 100644 --- a/sound/usb/format.c +++ b/sound/usb/format.c @@ -80,6 +80,7 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip, } fp->fmt_bits = sample_width; + fp->fmt_sz = sample_bytes; if ((pcm_formats == 0) && (format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) {