From patchwork Mon Apr 22 22:48:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13639094 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 5113F2110B; Mon, 22 Apr 2024 22:50:00 +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=1713826201; cv=none; b=q98tW3dEybGIlyjT2h9e2YwI8oRZlW+5XgPRqytN21TuRh91qmA7QkdrO0tLaieyUyyBQSHzenrj7dYSNDrC1+yYNyhrAyXZFiXZXt0VdlVEH1AzEBxuJH7kH/+2uXrl2yHniKPgUVVWd3rB0ob/a1eQDVkXBmLsVzOQfnW+2QA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713826201; c=relaxed/simple; bh=hk7In+ww81z4Qk7+BraCCdvs1dyXyuUDvjG/d3CCxYY=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=QG8/cFn3j3wnmdgikXvOKiulLEW0fvD2GMYLQUr21Bi1MORicLQO5T+OFwWBqLmzg/4cYmII+zp6aRTmV2TmsUTlRgmkZlA7TlWavdrr2pcOD2BCMIxSNDliQN9dgr6c4HPKkZbGSduHM5MuwvekOWw+pEiLAO5CPBXIlDEXJss= 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=AeOKTxbn; 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="AeOKTxbn" Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 43MMDFDT004887; Mon, 22 Apr 2024 22:49:41 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=8WSJ8FulDBKQfYgUGO7D 0IPBKMSABhMchwkTts6ZjaY=; b=AeOKTxbnoC86VJfPZGyJa6EESmY/Th3/kqcq tj0VYg00FBGyPc+JASh+HX3YufMLr0WgdJyTeK7/10BdRGA+BmbiqCESiK20zKWL w8eM1Ux5ePSyV4eJC9ww1ou6kFSbg+ZNP1+EZ+u2l2sUo8o5FrtKUiX+KVLMrBrw tf16gc59nIa0Z+/ehhxYJYMYRcStTVqIHfbWLLJIW9IpqxrAzSxthpe8vT45TQ1q EjhmZL4HWbpw0zrLdrnbXehgkBZJLjvdrBMs5dr5FhqVWSjnw7zF0BQSxQQIO50I 4PDA8Gg1QRP8+ufUL//4woTGjtv6XBJymBnQWfE8nv2pMzZFXw== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3xnn82hskm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Apr 2024 22:49:40 +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 43MMnP46003480 (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 15:49:24 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v19 30/41] ASoC: qcom: qdsp6: Add SOC USB offload select get/put callbacks Date: Mon, 22 Apr 2024 15:48:55 -0700 Message-ID: <20240422224906.15868-31-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-arm-msm@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: mdgduxdN3oBFpnIuCxRmr5bEHOj1BOrO X-Proofpoint-ORIG-GUID: mdgduxdN3oBFpnIuCxRmr5bEHOj1BOrO 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 impostorscore=0 mlxlogscore=999 priorityscore=1501 clxscore=1011 suspectscore=0 lowpriorityscore=0 bulkscore=0 adultscore=0 spamscore=0 phishscore=0 mlxscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2404010003 definitions=main-2404220096 In order for device selection to be supported, the Q6USB backend DAI link will need to be notified about the device to start the offloading session on. Device selection is made possible by setting the Q6AFE device token. The audio DSP utilizes this parameter, and will pass this field back to the USB offload driver within the QMI stream requests. Signed-off-by: Wesley Cheng --- sound/soc/qcom/qdsp6/q6usb.c | 115 +++++++++++++++++++++++++++++++++-- 1 file changed, 111 insertions(+), 4 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c index e539b411c35e..72ec7d45f916 100644 --- a/sound/soc/qcom/qdsp6/q6usb.c +++ b/sound/soc/qcom/qdsp6/q6usb.c @@ -36,9 +36,12 @@ struct q6usb_port_data { struct q6afe_usb_cfg usb_cfg; struct snd_soc_usb *usb; struct q6usb_offload priv; - int active_usb_chip_idx; + struct mutex mutex; unsigned long available_card_slot; struct q6usb_status status[SNDRV_CARDS]; + bool idx_valid; + int sel_card_idx; + int sel_pcm_idx; }; static const struct snd_soc_dapm_widget q6usb_dai_widgets[] = { @@ -54,10 +57,34 @@ static int q6usb_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct q6usb_port_data *data = dev_get_drvdata(dai->dev); + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct q6afe_port *q6usb_afe; int direction = substream->stream; + int chip_idx; + int ret; + + mutex_lock(&data->mutex); + chip_idx = data->status[data->sel_card_idx].sdev->chip_idx; + + ret = snd_soc_usb_find_format(chip_idx, params, direction); + if (ret < 0) + goto out; + + q6usb_afe = q6afe_port_get_from_id(cpu_dai->dev, USB_RX); + if (IS_ERR(q6usb_afe)) + goto out; - return snd_soc_usb_find_format(data->active_usb_chip_idx, params, - direction); + ret = afe_port_send_usb_dev_param(q6usb_afe, data->sel_card_idx, + data->sel_pcm_idx); + if (ret < 0) + goto out; + + data->status[data->sel_card_idx].pcm_index = data->sel_pcm_idx; +out: + mutex_unlock(&data->mutex); + + return ret; } static const struct snd_soc_dai_ops q6usb_ops = { @@ -88,6 +115,70 @@ static struct snd_soc_dai_driver q6usb_be_dais[] = { }, }; +static int q6usb_get_offload_dev(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol, + enum snd_soc_usb_kctl type) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct q6usb_port_data *data = dev_get_drvdata(component->dev); + int idx; + + mutex_lock(&data->mutex); + + if (!data->available_card_slot) { + idx = -1; + } else { + if (type == SND_SOC_USB_KCTL_CARD_ROUTE) + idx = data->sel_card_idx; + else + idx = data->sel_pcm_idx; + } + + ucontrol->value.integer.value[0] = idx; + mutex_unlock(&data->mutex); + + return 0; +} + +static int q6usb_put_offload_dev(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol, + enum snd_soc_usb_kctl type) +{ + struct snd_soc_component *component = snd_kcontrol_chip(kcontrol); + struct q6usb_port_data *data = dev_get_drvdata(component->dev); + int changed = 0; + int idx; + + 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)) { + data->sel_card_idx = idx; + changed = 1; + } + break; + case SND_SOC_USB_KCTL_PCM_ROUTE: + if (idx >= 0 && data->sel_card_idx >= 0 && + idx < data->status[data->sel_card_idx].sdev->num_playback) { + data->sel_pcm_idx = idx; + changed = 1; + } + break; + default: + break; + } + + if (changed) + data->idx_valid = true; + +out: + mutex_unlock(&data->mutex); + + return changed; +} + static int q6usb_audio_ports_of_xlate_dai_name(struct snd_soc_component *component, const struct of_phandle_args *args, const char **dai_name) @@ -117,16 +208,28 @@ static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb, data = dev_get_drvdata(usb->component->dev); + mutex_lock(&data->mutex); if (connected) { /* We only track the latest USB headset plugged in */ - data->active_usb_chip_idx = sdev->card_idx; + if (!data->idx_valid) { + data->sel_card_idx = sdev->card_idx; + data->sel_pcm_idx = 0; + } set_bit(sdev->card_idx, &data->available_card_slot); data->status[sdev->card_idx].sdev = sdev; } else { clear_bit(sdev->card_idx, &data->available_card_slot); data->status[sdev->card_idx].sdev = NULL; + + if (data->sel_card_idx == sdev->card_idx) { + data->idx_valid = false; + data->sel_card_idx = data->available_card_slot ? + ffs(data->available_card_slot) - 1 : 0; + data->sel_pcm_idx = 0; + } } + mutex_unlock(&data->mutex); return 0; } @@ -142,6 +245,8 @@ static int q6usb_component_probe(struct snd_soc_component *component) return -ENOMEM; usb->connection_status_cb = q6usb_alsa_connection_cb; + usb->put_offload_dev = q6usb_put_offload_dev; + usb->get_offload_dev = q6usb_get_offload_dev; ret = snd_soc_usb_add_port(usb); if (ret < 0) { @@ -205,6 +310,8 @@ static int q6usb_dai_dev_probe(struct platform_device *pdev) data->priv.domain = iommu_get_domain_for_dev(&pdev->dev); + mutex_init(&data->mutex); + data->priv.dev = dev; dev_set_drvdata(dev, data);