From patchwork Thu Sep 12 19:39:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13802608 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 5A92A1BFDEA; Thu, 12 Sep 2024 19:40:17 +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=1726170019; cv=none; b=MroDyezCWhJc8/J4poGGlgm2kSGwu4gr8SSXbNE+ZZZ0Rho2dKRAx8GQSxJaCeJRSa6LbZkXRTE6+/+JdAKMFDmA6SPpdsSPGmhoVV5RoZT3PLiX4oeGsOajM7q8I6/A62NGSkKjT4/cdEpqXuBCpLcoSurV3P9e5bwjJHzrtIM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726170019; c=relaxed/simple; bh=Nm8aqgQ0GcbTIdZz+5RH7tVRiIi1hmi+glCYy8qYN8M=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=k6UyCwm5fPxuC35KVq9HlwgwyUqdiYkqNVtZuTxuFsB4dBT0GTjiQcDHtl2zP9azFJXmbi8TMdvJdUpM0S+nZPQFGRoKE16UoRjmf2DgTZCrNk1rwKj3yedrg2bhc0aBRFmEZFXg+H7ic6Tvxsi75tzq2ecTxgFtSU2cCaS1wUs= 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=DIwnJoa5; 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="DIwnJoa5" Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 48CHslEV000528; Thu, 12 Sep 2024 19:39:51 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= iYFID7OryVHMFMsUucuLQ+QUngojA4llWqFBVJpFtVY=; b=DIwnJoa5g03mq+X7 i48aprzTpVF3S3UwLddgokzzYDGWEDfsTXg+jTDGbuCQ42gYi96lM5YAXO64YtYQ LGsHJEp6Qte8c4I1g0GK44CxOLXgxB+yADpK21BcDuv26dAXuldloaNaQA2wxMAZ NwE8HsQMDJ7ihOATPnxEGuX5TPlbhU2GtPEjXes+gbP6NyFYnkS9YGGq7BqJgSfs D2OPHZft5EXTE+KIFBoEHFQnSGQ/5d8nuvjBrm+UfWLggcWAKZZRWD0o2gBsTF00 YuNTNNWQ0zavURE6+CToyHxuuYVnSI6W+dWNAxRpLTfc4jwiKbw1Po91N+S4kbFi cg4ing== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 41gy5rpe4r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 Sep 2024 19:39:51 +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 48CJdoqN032754 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 12 Sep 2024 19:39:50 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, 12 Sep 2024 12:39:49 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , , Wesley Cheng Subject: [PATCH v27 12/32] ALSA: usb-audio: Save UAC sample size information Date: Thu, 12 Sep 2024 12:39:15 -0700 Message-ID: <20240912193935.1916426-13-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240912193935.1916426-1-quic_wcheng@quicinc.com> References: <20240912193935.1916426-1-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: nalasex01c.na.qualcomm.com (10.47.97.35) 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: PYw4dRZQBoMxhW1CGBT9fr8Skv93pz-K X-Proofpoint-ORIG-GUID: PYw4dRZQBoMxhW1CGBT9fr8Skv93pz-K X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 phishscore=0 clxscore=1015 malwarescore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 impostorscore=0 priorityscore=1501 mlxlogscore=999 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2408220000 definitions=main-2409120143 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 existing 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 4f4f3f39b7fa..b65163c60176 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))) {