From patchwork Thu Sep 21 21:48:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13394696 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 78282E7D0AF for ; Thu, 21 Sep 2023 21:53:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232809AbjIUVxi (ORCPT ); Thu, 21 Sep 2023 17:53:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232721AbjIUVxW (ORCPT ); Thu, 21 Sep 2023 17:53:22 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ECA682D63; Thu, 21 Sep 2023 14:49:39 -0700 (PDT) Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 38LLjc1k010925; Thu, 21 Sep 2023 21:49:02 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=NmQu8MFx2lZ7/sy3a7JXrsNnPwmoH+GDE19rppIQVy8=; b=dLwLErETigAiw6VM9ji1hY8Mk+oxEbWTxpRVueloA8mRaGarGWhoq6oy9IrPRymWsi5q aerUjw3Yoyj3U4ZDVfkSfZl19XwJM/jdZLjI5ZS++AKckL8jD3xBoVWfJBKGhljqFFz7 glI/1tQj+CM6O8vaGX+SxmNmEo1awrvyAeWYHaIfn3BwBbl2xAmD0i0nLQh48HEggLSG 3x22EsNcV1UJuIXPXfo2oyTfwx9yV/g2wgDK/fWui9xNLafbqvzOZqUoVoLJjqS4+DwV PEnSrIcopCo4LU8+ShossEmIbqFdvDrU4FuDz3YszyGPWFkehOEtEJh3tHDHk3UT3T2b GA== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3t8txpgc0j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 21 Sep 2023 21:49:02 +0000 Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA01.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 38LLn1Nb031102 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 21 Sep 2023 21:49:01 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 15.2.1118.36; Thu, 21 Sep 2023 14:49:00 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , Wesley Cheng Subject: [PATCH v7 26/33] ALSA: usb-audio: qcom: Populate PCM and USB chip information Date: Thu, 21 Sep 2023 14:48:36 -0700 Message-ID: <20230921214843.18450-27-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230921214843.18450-1-quic_wcheng@quicinc.com> References: <20230921214843.18450-1-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-ORIG-GUID: xkjOQ3Atu-mQnKB-HPI3o_fltUXGJtlf X-Proofpoint-GUID: xkjOQ3Atu-mQnKB-HPI3o_fltUXGJtlf X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-09-21_19,2023-09-21_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 spamscore=0 phishscore=0 impostorscore=0 malwarescore=0 adultscore=0 bulkscore=0 clxscore=1015 suspectscore=0 lowpriorityscore=0 priorityscore=1501 mlxlogscore=644 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2309210188 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 2ce39aa26906..2dffe7e99e01 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -175,6 +175,21 @@ 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) { @@ -1579,6 +1594,8 @@ 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; @@ -1693,10 +1710,8 @@ 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); }