From patchwork Mon Apr 22 22:48:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13639133 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 29D641F605; Mon, 22 Apr 2024 22:49:58 +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=1713826200; cv=none; b=CVRs48jeFoUykaSbFKkR/xbXTe3yqomiGhBtj7cYUotBqu+tN5FgoccujeCKpESWopwjL9vvbVO79O0zMSUGAhTj/pYMvLndrEu4+/cioRlXfbUCVV8vX830rSpPYQVQ8xl9SwglKo9ecj/UsT0n3jCmbdvk4rWdFzLSQUnwjpY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713826200; c=relaxed/simple; bh=dtH+XypTk/Dtwesx70WStgcYULhuLJpaBE5SqAaS+wg=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=HBRhZD8ofEtBRGRvER9aGDEbrj4Ezq3WMsR9QFRSDqLtO0iwoeodZrY92ST/PX9NP7/aot2rQZHbd0bz2b48aCp93qTM3zurfJY/G0vBB8gEWOpqBR/zVxDl6VHwDNj0Gx8KCOhtIoBLhAFhboDSD51LqQBmeJ83ZCbX9RpdIgo= 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=SBJdgfCM; 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="SBJdgfCM" Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 43MMLSq1003207; Mon, 22 Apr 2024 22:49:43 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=Hs3fpdD+l1O4EfSuPsgb K4Q6nEGroTvEVrnQjm293OU=; b=SBJdgfCMpZmaa6pe3zAu5RVewz7Q8Ndx7IkV urIo5g/9j94l5Z0GD4fXCcZ6/NiO8+9Rcbrs6mAdjkKMo+v/mivnL/YNohk73ZTr 6wf+Hzsu9Ug4YsRm/3xanAwqPhDwqIthfZVxKvdQ9atRzYBgMrrVxFH4soZ/stP5 O1iFHAS8KbX6FKMYYgH42pYKAn+egssYTm1QUmXlrjKo/ekGHCdNeB2VDbT3zbkq 2PG5KVfWnaTmFZuPFX4ALD8W05i9cefzdXXHYgq062k0NLqB1hQoGhi8kaN+d1oz Lm5sOiiTp2X5zrV7ZXkuGJ+CmZ5D+m1bLEwrxvcji7/LojCAPA== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3xnn82ssjt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Apr 2024 22:49:42 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 43MMnPG6003483 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Apr 2024 22:49:25 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; Mon, 22 Apr 2024 15:49:25 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v19 32/41] ASoC: qcom: qdsp6: Add PCM ops to track current state Date: Mon, 22 Apr 2024 15:48:57 -0700 Message-ID: <20240422224906.15868-33-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240422224906.15868-1-quic_wcheng@quicinc.com> References: <20240422224906.15868-1-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: 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: 1cZYwHA9mg199ZJJ78dlyvM_wL6thFjF X-Proofpoint-ORIG-GUID: 1cZYwHA9mg199ZJJ78dlyvM_wL6thFjF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-04-22_16,2024-04-22_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 clxscore=1015 bulkscore=0 malwarescore=0 spamscore=0 impostorscore=0 priorityscore=1501 mlxlogscore=999 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2404220096 Register PCM callbacks so that the Q6USB DPCM backend dai link can track and update the status of the PCM device. Utilize the SOC USB state APIs to ensure that the SND kcontrol for the offload status is updated properly. Signed-off-by: Wesley Cheng --- sound/soc/qcom/qdsp6/q6usb.c | 52 +++++++++++++++++++++++++++++++++--- 1 file changed, 49 insertions(+), 3 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c index 72ec7d45f916..32971395ab13 100644 --- a/sound/soc/qcom/qdsp6/q6usb.c +++ b/sound/soc/qcom/qdsp6/q6usb.c @@ -30,6 +30,9 @@ struct q6usb_status { struct snd_soc_usb_device *sdev; unsigned int pcm_index; + bool prepared; + bool running; + int session_id; }; struct q6usb_port_data { @@ -81,14 +84,48 @@ static int q6usb_hw_params(struct snd_pcm_substream *substream, goto out; data->status[data->sel_card_idx].pcm_index = data->sel_pcm_idx; + data->status[data->sel_card_idx].prepared = true; + data->status[data->sel_card_idx].session_id = + snd_soc_usb_prepare_session(data->usb, data->sel_card_idx, + data->sel_pcm_idx); out: mutex_unlock(&data->mutex); return ret; } +static int q6usb_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct q6usb_port_data *data = dev_get_drvdata(dai->dev); + + mutex_lock(&data->mutex); + data->status[data->sel_card_idx].running = true; + snd_soc_usb_set_session_state(data->usb, + data->status[data->sel_card_idx].session_id, + SND_SOC_USB_RUNNING); + mutex_unlock(&data->mutex); + + return 0; +} + +static void q6usb_shutdown(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct q6usb_port_data *data = dev_get_drvdata(dai->dev); + + mutex_lock(&data->mutex); + data->status[data->sel_card_idx].running = false; + data->status[data->sel_card_idx].prepared = false; + snd_soc_usb_shutdown_session(data->usb, + data->status[data->sel_card_idx].session_id); + mutex_unlock(&data->mutex); +} + static const struct snd_soc_dai_ops q6usb_ops = { .hw_params = q6usb_hw_params, + .prepare = q6usb_prepare, + .shutdown = q6usb_shutdown, }; static struct snd_soc_dai_driver q6usb_be_dais[] = { @@ -149,9 +186,14 @@ static int q6usb_put_offload_dev(struct snd_kcontrol *kcontrol, int changed = 0; int idx; + mutex_lock(&data->mutex); + + /* Don't allow changes to the offloading devices if session is busy */ + if (data->sel_card_idx >= 0 && data->status[data->sel_card_idx].prepared) + goto out; + idx = ucontrol->value.integer.value[0]; - mutex_lock(&data->mutex); switch (type) { case SND_SOC_USB_KCTL_CARD_ROUTE: if (idx >= 0 && test_bit(idx, &data->available_card_slot)) { @@ -210,8 +252,12 @@ static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb, mutex_lock(&data->mutex); if (connected) { - /* We only track the latest USB headset plugged in */ - if (!data->idx_valid) { + /* + * Update the latest USB headset plugged in, if session is + * idle. + */ + if (!data->idx_valid && + !data->status[data->sel_card_idx].prepared) { data->sel_card_idx = sdev->card_idx; data->sel_pcm_idx = 0; }