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Mon, 10 Jun 2024 23:58:26 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 45ANwQvL001579 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 10 Jun 2024 23:58:26 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, 10 Jun 2024 16:58:25 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v23 25/32] ASoC: usb: Create SOC USB SND jack kcontrol Date: Mon, 10 Jun 2024 16:58:01 -0700 Message-ID: <20240610235808.22173-26-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240610235808.22173-1-quic_wcheng@quicinc.com> References: <20240610235808.22173-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] X-ClientProxiedBy: nalasex01a.na.qualcomm.com (10.47.209.196) 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: LT62pxzUl6U4yQN1x5v9mjXqEQW09h4S X-Proofpoint-GUID: LT62pxzUl6U4yQN1x5v9mjXqEQW09h4S 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=2024-06-10_07,2024-06-10_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 adultscore=0 suspectscore=0 bulkscore=0 phishscore=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 mlxlogscore=927 impostorscore=0 mlxscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2405170001 definitions=main-2406100177 Message-ID-Hash: 2DGF7IFIDQRH7UNNV4XTHO7XNHD57CFD X-Message-ID-Hash: 2DGF7IFIDQRH7UNNV4XTHO7XNHD57CFD X-MailFrom: quic_wcheng@quicinc.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: 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) {