From patchwork Fri May 24 00:10:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13672573 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 7B4723BBED; Fri, 24 May 2024 00:11:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716509485; cv=none; b=RroTFrSp5LbD3JgshGkSYTqmLC9HBAztFHp6WQ+eTrIXp5ESIaKWXejykuJ6lPQ2F0Isb8ZEQVmTAvjzTg7W2UO2OyHol1uj+tFrOmdBpzPAJMySByUa75pXFvu+8+k3xAdbiruUY5CBveXkjYMfCBXvjaEd9A6jTdlM1SPVWSQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716509485; c=relaxed/simple; bh=mMjfhikAapy3yEhdUgCdMwC2K7gi8qsZL718HI1rgN8=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=bOimwVIUYPhcsMGvrN1ReOxrfQu3la1CjHRYBmHVu1BMD0ahinmSASGj6/MRSrH4xlBJvVus6uhYo7fEmXOKkiRHq9XuRrU/isx9i+9ccpAAMeTTtbUKIhpucRts0HqC9dM6ntniYPWCdoo8cjEuioNgYMuHC9NvlACp1zDaGWE= 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=g+qa76Fo; arc=none smtp.client-ip=205.220.180.131 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="g+qa76Fo" Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 44NNPHPA007650; Fri, 24 May 2024 00:11:05 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=qcppdkim1; bh=7RpG2/ulW/z/mLA7szHHtNtb NNS0U7CenpPtBBWreTU=; b=g+qa76FoDRF+WKvloVTORB8xdFnnYkvcr3k6lxws PAwixUWEEZnZdDFJC1Np22GuLFRiAhVCmHd7tJDCroK8xYBmSdRnS2L0PJuVkj9/ BSp1RgIOKZElL8tG1DefgwI+hNJTgab/0PIC4qs3g7J4UiC7rQioZCgw73PTMZ/A aIJD+gWnaHlkI6uAsKSX/m+/aXqqmuuE/++VKlA+hnPRXTO/ApC3Sza+i8SGCE+z O7AKQlbIRNjRVY7oYgqXDQSFKG2zGqKSAFJFI0iw2MU7uG+cTB8dci0fKgSznrB6 KfozOr9CrgDMyFC1nLB9s7CR6ZF0jfTvRdIZ3RpD/IlInA== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3yaa9trqab-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 May 2024 00:11:05 +0000 (GMT) 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 44O0B4eF008148 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 May 2024 00:11:04 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, 23 May 2024 17:11:03 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v22 33/38] ASoC: usb: Fetch ASoC sound card information Date: Thu, 23 May 2024 17:10:38 -0700 Message-ID: <20240524001043.10141-34-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240524001043.10141-1-quic_wcheng@quicinc.com> References: <20240524001043.10141-1-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: UPXrLS-IHLsY3hwj8ZGutgBG-chvLwGh X-Proofpoint-ORIG-GUID: UPXrLS-IHLsY3hwj8ZGutgBG-chvLwGh X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.12.28.16 definitions=2024-05-23_13,2024-05-23_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxscore=0 spamscore=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 malwarescore=0 adultscore=0 suspectscore=0 phishscore=0 impostorscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2405230166 For USB sound to expose mixer controls to fetch information about the ASoC sound card, add an API that returns the platform sound card number that is registered with SOC USB. Knowing this allows for applications to further query about the offload status. Signed-off-by: Wesley Cheng --- include/sound/soc-usb.h | 6 ++++++ sound/soc/soc-usb.c | 20 ++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index 8e94c1991819..ab5ade4942d5 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -85,6 +85,7 @@ int snd_soc_usb_find_supported_format(int card_idx, int snd_soc_usb_connect(struct device *usbdev, struct snd_soc_usb_device *sdev); int snd_soc_usb_disconnect(struct device *usbdev, struct snd_soc_usb_device *sdev); void *snd_soc_usb_find_priv_data(struct device *dev); +int snd_soc_usb_device_offload_available(struct device *dev); int snd_soc_usb_prepare_session(struct snd_soc_usb *usb, int card_idx, int pcm_idx); int snd_soc_usb_shutdown_session(struct snd_soc_usb *usb, int session_id); @@ -129,6 +130,11 @@ static inline void *snd_soc_usb_find_priv_data(struct device *dev) return NULL; } +static inline int snd_soc_usb_device_offload_available(struct device *dev) +{ + return -ENODEV; +} + static inline int snd_soc_usb_prepare_session(struct snd_soc_usb *usb, int card_idx, int pcm_idx) { diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index 0baba34910b5..d50bcb9f379e 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -503,6 +503,26 @@ int snd_soc_usb_find_supported_format(int card_idx, } EXPORT_SYMBOL_GPL(snd_soc_usb_find_supported_format); +/** + * snd_soc_usb_device_offload_available() - Fetch BE DAI link sound card + * @dev: the device to find in SOC USB + * + * Finds the component linked to a specific SOC USB instance, and returns + * the sound card number for the platform card supporting offloading. + * + */ +int snd_soc_usb_device_offload_available(struct device *dev) +{ + struct snd_soc_usb *ctx; + + ctx = snd_soc_find_usb_ctx(dev); + if (!ctx) + return -ENODEV; + + return ctx->component->card->snd_card->number; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_device_offload_available); + /** * snd_soc_usb_allocate_port() - allocate a SOC USB device * @component: USB DPCM backend DAI component