From patchwork Tue May 7 19:51:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13657748 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 41D7C17BB2C; Tue, 7 May 2024 19:51:56 +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=1715111517; cv=none; b=BdY//GT9nEEj3fCNqTR5N79Plz5/UZQ2QdCtUrY0/hFdYyPlzgFuVPct1LFij8CrKViUy1z8nuVf2G+nk6RVslZULV5zpSHVkO6697qGhE9ge8GZnL25eWyyJjPHc3hUl1/EzTPqYiU7YATbUBm8c9sCLnQw+jsOFY/KHsuDcc4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715111517; c=relaxed/simple; bh=4LTu3a6WdYBcZqVkqq+JP5P5US9ziEy7S0U31UerGeQ=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=SMUSc920ArVeWO+GK6UQCMIpinkDLJGfIkpSu5f/GsU+HnCF4zDJTDENheuWCnTQbx5xE3juNF1qDOg6ccweCDed8k4yi2SI2Vy5bf2WvsFdumpzGViIYlm3wpO2S6t7RYWKbef8C8F1FCa6JToeD1/wCkjHH+lt65n/RAq+lsU= 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=IJh1M4np; 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="IJh1M4np" Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 447JHS5j028414; Tue, 7 May 2024 19:51:35 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=4BLaLS9BU3WdvEdnigOS cKoO5rJErALU0p71fdKHXME=; b=IJh1M4npRf5FoN8EJyUnWVRy1cMvuNrY3kRu 8R4D3DGyiqlEQZavg8gxG/Uvii+e5iztbRcmuMNYjPj4GTZO9R5ZLzGV3aI7jU9K 5w3478TW9aMV4Ss4C9XVVUfJWC8JuMuzqmyiDv375PsVVd3xpzGUK+o5vtkmD2Ig RkxNpjFm0MGeV5+3iiZXItIaM0O/yyE5WNA6MxnH8lL2Pwv1L0awOUkGu5484J54 vNteOwVM5yMlQ4mL0RJURSafbVKVkMC1ceg4HrVzkENRUrZ/xdwqaFhMmZiI97+Q aUlQADCyJd7Tf5KCxAiETS+tF0na30ss4OEVxdLV7QnAYI+QvQ== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3xysg9g5wy-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 May 2024 19:51:35 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 447JpYqE019827 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 7 May 2024 19:51:34 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, 7 May 2024 12:51:34 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v21 25/39] ALSA: usb-audio: qcom: Populate PCM and USB chip information Date: Tue, 7 May 2024 12:51:02 -0700 Message-ID: <20240507195116.9464-26-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240507195116.9464-1-quic_wcheng@quicinc.com> References: <20240507195116.9464-1-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: 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: 7nMIjPbW445MQJ5oaKTeBt6-BWzMWGlf X-Proofpoint-ORIG-GUID: 7nMIjPbW445MQJ5oaKTeBt6-BWzMWGlf X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-07_12,2024-05-06_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 malwarescore=0 bulkscore=0 mlxscore=0 suspectscore=0 impostorscore=0 lowpriorityscore=0 adultscore=0 spamscore=0 priorityscore=1501 clxscore=1015 mlxlogscore=811 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405010000 definitions=main-2405070138 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 | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c index 648b97aeae1d..1a45bc289f90 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -170,6 +170,21 @@ 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) { @@ -1638,6 +1653,8 @@ 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;