From patchwork Thu Aug 29 19:40:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13783645 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 E09D61BC07B; Thu, 29 Aug 2024 19:41:48 +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=1724960511; cv=none; b=eBEcbQCeYyO8DCURzITr1ooxSgfi2QtjUwOKCKBUig8dwvZfvUl/4H7QkxTvu0c3kr6PUplUDdohkZPaj/E5i8JVvTKwnLr5TsJf/cnwFObfqUsv63zATqIb8WLlqTl85TxJiLLu5ys2HxcA/QSziAV3V9t7GMey1+S4n2gcvMw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724960511; c=relaxed/simple; bh=FkLR9/Bpljadi07VESNBr9oG9sHA2baimqKzXqS18GE=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=WZ6d34iJ0/ZMr55mZTNoy+/fWdTneUueYJQCTFXNInL8jtkaCZOHY2jtUYpDM/Vq4rwrgjMcJOr5rOuUBed5uXBy+W1M7Qz3PpdPWmioZlCcWgctDhiKzscVR0w8tkpWTI/4Rve6EnikZll7nPsNhk4On+WAC66oii9ieryrSjE= 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=RrAqhTyZ; 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="RrAqhTyZ" 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 47TI0T3m002700; Thu, 29 Aug 2024 19:41:29 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= EOFzGBRo2RV3PoybDCxsp6y4eseDH8+fA65I4fJ3KNQ=; b=RrAqhTyZcMNCpq/R XxBjP75uXGTLG82JRFEwag/AOyXb+zDVvloMq6UV0DYDZAHALIcwpNE/OuG+GD8B jL5s9sK6UiNg1d9wcFOSjNW/X86RkXqHaU2O37X7VScowG5pm5Q8hruxtaY1Y577 pANn1Wzw5LfCh84Ilf+ozEahcAJatJk+EVpepWUEYoyZO2Xi7Npg86O9BbWjZDoG Ze29x1Uo2KhD4xGTmtZ6TvpJOjC5cmjpvb7vs1KpZ6sx6ykjgxOn+H7EFNaB89w1 wVA6bv8HLijSMmdHIqSXvikkx85Pv5Q5OF36gYAaxwGKkyA5wZAnb8NeuQRtDaao CoDaPg== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 419putxj63-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Aug 2024 19:41:29 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA01.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 47TJfSEp018223 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 29 Aug 2024 19:41:28 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; Thu, 29 Aug 2024 12:41:28 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , , Wesley Cheng Subject: [PATCH v26 15/33] ASoC: usb: Fetch ASoC card and pcm device information Date: Thu, 29 Aug 2024 12:40:47 -0700 Message-ID: <20240829194105.1504814-16-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240829194105.1504814-1-quic_wcheng@quicinc.com> References: <20240829194105.1504814-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01c.na.qualcomm.com (10.47.97.35) 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: TchWVDMw_KauVgrAg7w_fGZgFruQVPbn X-Proofpoint-GUID: TchWVDMw_KauVgrAg7w_fGZgFruQVPbn X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-29_06,2024-08-29_02,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxlogscore=927 suspectscore=0 phishscore=0 spamscore=0 bulkscore=0 clxscore=1015 mlxscore=0 malwarescore=0 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408290138 USB SND needs to know how the USB offload path is being routed. This would allow for applications to open the corresponding sound card and pcm device when it wants to take the audio offload path. This callback should return the mapped indexes based on the USB SND device information. Signed-off-by: Wesley Cheng Reviewed-by: Pierre-Louis Bossart --- include/sound/soc-usb.h | 12 ++++++++++++ sound/soc/soc-usb.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 43 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index 5c788cbfa82e..86876098a2b7 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -36,6 +36,7 @@ struct snd_soc_usb_device { * @list - list head for SND SOC struct list * @component - reference to ASoC component * @connection_status_cb - callback to notify connection events + * @update_offload_route_info - callback to fetch mapped ASoC device * @priv_data - driver data **/ struct snd_soc_usb { @@ -44,6 +45,9 @@ struct snd_soc_usb { int (*connection_status_cb)(struct snd_soc_usb *usb, struct snd_soc_usb_device *sdev, bool connected); + int (*update_offload_route_info)(struct snd_soc_component *component, + int card, int pcm, int direction, + long *route); void *priv_data; }; @@ -59,6 +63,8 @@ void *snd_soc_usb_find_priv_data(struct device *dev); int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component, struct snd_soc_jack *jack); int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component); +int snd_soc_usb_update_offload_route(struct device *dev, int card, int pcm, + int direction, long *route); struct snd_soc_usb *snd_soc_usb_allocate_port(struct snd_soc_component *component, void *data); @@ -101,6 +107,12 @@ static inline int snd_soc_usb_disable_offload_jack(struct snd_soc_component *com return 0; } +static int snd_soc_usb_update_offload_route(struct device *dev, int card, int pcm, + int direction, long *route) +{ + return -ENODEV; +} + static inline struct snd_soc_usb * snd_soc_usb_allocate_port(struct snd_soc_component *component, void *data) { diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index 3d5354298206..de249e8a28cb 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -117,6 +117,37 @@ int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component) } EXPORT_SYMBOL_GPL(snd_soc_usb_disable_offload_jack); +/** + * snd_soc_usb_update_offload_route - Find active USB offload path + * @dev - USB device to get offload status + * @card - USB card index + * @pcm - USB PCM device index + * @direction - playback or capture direction + * @route - pointer to route output array + * + * Fetch the current status for the USB SND card and PCM device indexes + * specified. + */ +int snd_soc_usb_update_offload_route(struct device *dev, int card, int pcm, + int direction, long *route) +{ + struct snd_soc_usb *ctx; + int ret; + + ctx = snd_soc_find_usb_ctx(dev); + if (!ctx) + return -ENODEV; + + mutex_lock(&ctx_mutex); + if (ctx && ctx->update_offload_route_info) + ret = ctx->update_offload_route_info(ctx->component, card, pcm, + direction, route); + mutex_unlock(&ctx_mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_update_offload_route); + /** * snd_soc_usb_find_priv_data() - Retrieve private data stored * @dev: device reference