From patchwork Fri May 24 00:10:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13672565 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 3C630381BE; Fri, 24 May 2024 00:11:21 +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=1716509484; cv=none; b=d63YQOiobyAZpQVkXjKRQQCcgWwZkyf4aKGA/bj0X1Hqjy18kpV1BYdegfI7apm9F/S91TRcvMC3H/opMCxNhltE6kf+6v6bDMW2kXp751iQTcvF2LsXbGKlYqZbQ7rMqf3FGlEGHskCoso9wCBQsPPKrD0EaZkYKCAR+bImgcg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716509484; c=relaxed/simple; bh=0dpxZQ4LBCHMtV64pxGbugE9fxOT6rBxbjLJxwnhXm4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=KcXb9fUtnSk46Tq/PLiAT1/gCAr57BOd2tjIDJ4QZQm1pDrcvj17leqF/zKRpAH7FS/SsCHpLmAlxSYlfu7AJj2aTt5YFVzHR/Psq2lSpSoCE9EOjrDiUCGPtzd2HM9StBUDuf1i++4VEb7O+tmteamvnJm3xJMn0wY3b2GxY/Y= 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=jjYlPygl; 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="jjYlPygl" 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 44NNPDni007627; 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=7fyqlGR2x7IukUd7gn2AMFj7 oHPwjjIvxgOf1sH4COE=; b=jjYlPyglIlwQT2+aqw3UmgUe+XQifLNu6wqMXsFF FcPp/ZL64QfOiOwXUOtiOaGf8PW35mvrTvjewr+54Dd81abzRl67n87N9pQ9tk5R eUW74/6BrV7rXQ8ElXi89aYuz77uG9rclCdsykFUkdlIT9dwKCz/8HL064AT7qmo sJumDw4Z5lYE4ouzG1sd4E9dNlHjEq6vwqVMmmxG1xZ/3BKwA151+slP1FH52TVQ 9QPEb4gmMnenB9dUZyau84gVv8wu5FvDCXqXr5mH7QXhR1L6mUtKEWRC6WGWK6/S b7/VWSmI/7zuchP1rNHKnK7F9728YwLtdLd2crZrgoxvQQ== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3yaa9trqaa-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 May 2024 00:11:04 +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 44O0B3cH020652 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 24 May 2024 00:11:03 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 31/38] ASoC: usb: Create SOC USB SND jack kcontrol Date: Thu, 23 May 2024 17:10:36 -0700 Message-ID: <20240524001043.10141-32-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: VobC6YZHdLyv02ASz6OzGC2NWtHdXBok X-Proofpoint-ORIG-GUID: VobC6YZHdLyv02ASz6OzGC2NWtHdXBok 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=932 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2405230166 Expose API for creation of a jack control for notifying of available devices that are plugged in/discovered, and that support offloading. This allows for control names to be standardized across implementations of USB audio offloading. Signed-off-by: Wesley Cheng --- include/sound/soc-usb.h | 16 +++++++++++ sound/soc/soc-usb.c | 62 ++++++++++++++++++++++++++++++++++++++++- 2 files changed, 77 insertions(+), 1 deletion(-) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index c5aecdd0b006..8e94c1991819 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -6,6 +6,8 @@ #ifndef __LINUX_SND_SOC_USB_H #define __LINUX_SND_SOC_USB_H +#include + enum snd_soc_usb_kctl { SND_SOC_USB_KCTL_CARD_ROUTE, SND_SOC_USB_KCTL_PCM_ROUTE, @@ -88,6 +90,9 @@ int snd_soc_usb_prepare_session(struct snd_soc_usb *usb, int card_idx, int pcm_i int snd_soc_usb_shutdown_session(struct snd_soc_usb *usb, int session_id); int snd_soc_usb_set_session_state(struct snd_soc_usb *usb, int session_id, enum snd_soc_usb_dai_state state); +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); struct snd_soc_usb *snd_soc_usb_allocate_port(struct snd_soc_component *component, int num_streams, void *data); @@ -143,6 +148,17 @@ static inline int snd_soc_usb_set_session_state(struct snd_soc_usb *usb, return -EINVAL; } +static inline int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack) +{ + return -ENODEV; +} + +static inline int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component) +{ + return -ENODEV; +} + static inline struct snd_soc_usb *snd_soc_usb_allocate_port( struct snd_soc_component *component, int num_streams, void *data) diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index faacae8a6a5c..0baba34910b5 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -4,8 +4,10 @@ */ #include #include -#include + +#include #include + #include "../usb/card.h" static DEFINE_MUTEX(ctx_mutex); @@ -61,6 +63,64 @@ static struct snd_soc_usb *snd_soc_find_usb_ctx(struct device *dev) } /* SOC USB sound kcontrols */ +/** + * snd_soc_usb_setup_offload_jack() - Create USB offloading jack + * @component: USB DPCM backend DAI component + * @jack: jack structure to create + * + * Creates a jack device for notifying userspace of the availability + * of an offload capable device. + * + * Returns 0 on success, negative on error. + * + */ +int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack) +{ + int ret; + + ret = snd_soc_card_jack_new(component->card, "USB Offload Playback Jack", + SND_JACK_HEADPHONE, jack); + if (ret < 0) { + dev_err(component->card->dev, "Unable to add USB offload jack\n"); + return ret; + } + + ret = snd_soc_component_set_jack(component, jack, NULL); + if (ret) { + dev_err(component->card->dev, "Failed to set jack: %d\n", ret); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_setup_offload_jack); + +/** + * snd_soc_usb_disable_offload_jack() - Disables USB offloading jack + * @component: USB DPCM backend DAI component + * @jack: jack structure to disable + * + * Disables the offload jack device, so that further connection events + * won't be notified. + * + * Returns 0 on success, negative on error. + * + */ +int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component) +{ + int ret; + + ret = snd_soc_component_set_jack(component, NULL, NULL); + if (ret) { + dev_err(component->card->dev, "Failed to disable jack: %d\n", ret); + return ret; + } + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_disable_offload_jack); + static int snd_soc_usb_get_offload_card_status(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) {