From patchwork Tue Oct 17 20:01:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 734453 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7C3A3CDB474 for ; Tue, 17 Oct 2023 20:02:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344204AbjJQUCA (ORCPT ); Tue, 17 Oct 2023 16:02:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234752AbjJQUBs (ORCPT ); Tue, 17 Oct 2023 16:01:48 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A26A5ED; Tue, 17 Oct 2023 13:01:46 -0700 (PDT) Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 39HJI2wI013950; Tue, 17 Oct 2023 20:01:29 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=9MdB2UaPJpsW3c367TGdC/biKeabpa3J5DqNgB8gRWM=; b=Mv5TaFGi0SRSPevHY/wA/zPH7pEP+t5DpLCeG5/rIVa0N6UFyMonrWG7+HfnY4kpDKcR ALU01hxX+GonWx/IxMZX9VQe6zrSWDueLr0Jam3xxRxd32L5eu/yyO/uF7amK1ip66YG 1m5soI80VEQzV4FEw3wngAiKi60xD9g5V/4e+F5ztENvIw1mwUOJnXx1Y9IJ3Vh+cTOB pEwIXgAkpWcxmQKVAjHD0K6A0/OGbw8xg5qQS9kCIm/0EpRPwbB/Ps3ITlbmqywlcWHM 60mS93eUGXrGFnHHHSx6wZvKjMJgSV69Z2EMqSkh09zJmGRIwVE3rzWez7CxvFdH+HKN yQ== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3tsnej9qj4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 17 Oct 2023 20:01:28 +0000 Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 39HK1RHX018746 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 17 Oct 2023 20:01:27 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 15.2.1118.39; Tue, 17 Oct 2023 13:01:27 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , Wesley Cheng Subject: [PATCH v9 27/34] ALSA: usb-audio: qcom: Populate PCM and USB chip information Date: Tue, 17 Oct 2023 13:01:02 -0700 Message-ID: <20231017200109.11407-28-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20231017200109.11407-1-quic_wcheng@quicinc.com> References: <20231017200109.11407-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: gqXx785R9TS71NduPaTuCiNo98dVIDIj X-Proofpoint-ORIG-GUID: gqXx785R9TS71NduPaTuCiNo98dVIDIj X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-17_03,2023-10-17_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 spamscore=0 bulkscore=0 impostorscore=0 mlxscore=0 lowpriorityscore=0 suspectscore=0 priorityscore=1501 phishscore=0 malwarescore=0 mlxlogscore=634 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310170169 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Currently, only the index to the USB SND card array is passed to the USB backend. Pass through more information, specifically the USB SND card number and the number of PCM devices available. This allows for the DPCM backend to determine what USB resources are available during situations, such as USB audio offloading. Signed-off-by: Wesley Cheng --- sound/usb/qcom/qc_audio_offload.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c index bd6b84f72c74..ae74098b41f5 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -173,6 +173,21 @@ enum usb_qmi_audio_format { USB_QMI_PCM_FORMAT_U32_BE, }; +static int usb_qmi_get_pcm_num(struct snd_usb_audio *chip, int direction) +{ + struct snd_usb_substream *subs = NULL; + struct snd_usb_stream *as; + int count = 0; + + list_for_each_entry(as, &chip->pcm_list, list) { + subs = &as->substream[direction]; + if (subs->ep_num) + count++; + } + + return count; +} + static enum usb_qmi_audio_device_speed_enum_v01 get_speed_info(enum usb_device_speed udev_speed) { @@ -1592,6 +1607,8 @@ static void qc_usb_audio_offload_probe(struct snd_usb_audio *chip) sdev->card_idx = chip->card->number; sdev->chip_idx = chip->index; + sdev->num_playback = usb_qmi_get_pcm_num(chip, 0); + sdev->num_capture = usb_qmi_get_pcm_num(chip, 1); uadev[chip->card->number].sdev = sdev; uaudio_qdev->last_card_num = chip->card->number; @@ -1706,10 +1723,8 @@ static void qc_usb_audio_offload_disconnect(struct snd_usb_audio *chip) mutex_unlock(&chip->mutex); atomic_dec(&uaudio_qdev->qdev_in_use); - if (!atomic_read(&uaudio_qdev->qdev_in_use)) { - snd_soc_usb_disconnect(usb_get_usb_backend(udev)); + if (!atomic_read(&uaudio_qdev->qdev_in_use)) qc_usb_audio_cleanup_qmi_dev(); - } mutex_unlock(&qdev_mutex); }