Message ID | 20241011000650.2585600-25-quic_wcheng@quicinc.com (mailing list archive) |
---|---|
State | Superseded |
Headers | show
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Fri, 11 Oct 2024 00:07:10 +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 49B079Dq015298 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 11 Oct 2024 00:07:09 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, 10 Oct 2024 17:07:08 -0700 From: Wesley Cheng <quic_wcheng@quicinc.com> To: <srinivas.kandagatla@linaro.org>, <mathias.nyman@intel.com>, <perex@perex.cz>, <conor+dt@kernel.org>, <dmitry.torokhov@gmail.com>, <corbet@lwn.net>, <broonie@kernel.org>, <lgirdwood@gmail.com>, <tiwai@suse.com>, <krzk+dt@kernel.org>, <pierre-louis.bossart@linux.intel.com>, <Thinh.Nguyen@synopsys.com>, <bgoswami@quicinc.com>, <robh@kernel.org>, <gregkh@linuxfoundation.org> CC: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-sound@vger.kernel.org>, <linux-input@vger.kernel.org>, <linux-usb@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>, <linux-doc@vger.kernel.org>, <alsa-devel@alsa-project.org>, Wesley Cheng <quic_wcheng@quicinc.com> Subject: [PATCH v28 12/32] ALSA: usb-audio: Save UAC sample size information Date: Thu, 10 Oct 2024 17:06:09 -0700 Message-ID: <20241011000650.2585600-25-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241011000650.2585600-1-quic_wcheng@quicinc.com> References: <20241011000650.2585600-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: <linux-input.vger.kernel.org> List-Subscribe: <mailto:linux-input+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-input+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain 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: uGOjNlWfy9mPrfGVOpARtYE7RflWUExS X-Proofpoint-ORIG-GUID: uGOjNlWfy9mPrfGVOpARtYE7RflWUExS 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 bulkscore=0 mlxlogscore=999 lowpriorityscore=0 spamscore=0 malwarescore=0 adultscore=0 suspectscore=0 clxscore=1015 mlxscore=0 impostorscore=0 priorityscore=1501 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410100159 |
Series |
Introduce QC USB SND audio offloading support
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expand
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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))) {
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 <quic_wcheng@quicinc.com> --- sound/usb/card.h | 1 + sound/usb/format.c | 1 + 2 files changed, 2 insertions(+)