From patchwork Tue Jan 21 21:04:57 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13946567 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 9F42B1F9418; Tue, 21 Jan 2025 21:05:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737493551; cv=none; b=gmTtd7OO3Lq0d9cfRdC42qZ+WFvuk9LFP3TmmS/hzjvbHhNeDajVzPi+ZJZUMDt10eQcUakOySxF/YG0x0HGVWcuOu48SAgrQF7wkhWFh1fod6mF1VolQ9R1hQYc46AsFuSfBWEyRPZfFb3rVz44EZUWkl9ap3WdtXJIXmtijg8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737493551; c=relaxed/simple; bh=uwMmmc0Pgdf7JRyIqnhB49HyER04IQ0I9JtlA61F2H4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=hBlyJ4IjP+q+5DUClgzO/4ihVgPD9QEyxnF70B1ZcOS6Ck8sgTIRJGnrMi2AtCQfnUHLJNnEjpugiP5eJlQx1MKzoBxVo5EBAXXX6Gp8zoyL+fMvFmdnrmWoedsRtlPljkuG+elnxrfNQ+kBFZ1IUdT8R9EShQjM/Mpisgha+Bg= 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=LFW0m9zU; arc=none smtp.client-ip=205.220.168.131 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="LFW0m9zU" Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 50LK1kt1024386; Tue, 21 Jan 2025 21:05:32 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= 4bT/oDsYIvWCvd7KTc4ugKcXx+6hePSFmLJkYUewgaU=; b=LFW0m9zUKJ1RZAGz +CISmo0SV1tviT/SxCbM7pwxjMntwoUaVJZLX6vv114TYzr9VW2pWn77+SGoWHSn 3VRr+FVB85DkPjkCuFqeFOBYiBJxNBKE0EiAN3pSQ5l2/jheEz24p1q9zxVfJ98I ymz3S5oRpbsI8gdifyQcW5XgDdxxt0KkVT9ZaHyvrhpO6Q9vYIaghOtdIFI8jBzs BqtXLbhpdJ/UCucaoGxwXDN1w9njJX35pSMoGvfvKuVFJ6pZ3F1E6rvlhMgIbxTR A60w4OjLZwLxLJFn/CiPbg8rFDehn0dcW5Pv2+zfkkb8O2yTkUbcWrXa2+3DDmhE SwmU2A== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 44aj8n047c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jan 2025 21:05:32 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 50LL5VtC003200 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jan 2025 21:05:31 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; Tue, 21 Jan 2025 13:05:31 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v34 10/31] ALSA: usb-audio: Save UAC sample size information Date: Tue, 21 Jan 2025 13:04:57 -0800 Message-ID: <20250121210518.2436771-11-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250121210518.2436771-1-quic_wcheng@quicinc.com> References: <20250121210518.2436771-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01a.na.qualcomm.com (10.47.209.196) 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: QPS_zWRaThRPlPwu30oF1Igsov08ehqW X-Proofpoint-ORIG-GUID: QPS_zWRaThRPlPwu30oF1Igsov08ehqW 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=2025-01-21_08,2025-01-21_03,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 priorityscore=1501 adultscore=0 spamscore=0 suspectscore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 mlxlogscore=999 bulkscore=0 mlxscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501210167 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. Reviewed-by: Pierre-Louis Bossart 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 6049d957694c..f66449e5d634 100644 --- a/sound/usb/format.c +++ b/sound/usb/format.c @@ -85,6 +85,7 @@ 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 == BIT(UAC_FORMAT_TYPE_I_UNDEFINED))) {