From patchwork Fri Dec 23 23:31:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 636575 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8A8D5C3DA7D for ; Fri, 23 Dec 2022 23:33:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233455AbiLWXde (ORCPT ); Fri, 23 Dec 2022 18:33:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52264 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232180AbiLWXdO (ORCPT ); Fri, 23 Dec 2022 18:33:14 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 003FF1144B; Fri, 23 Dec 2022 15:33:13 -0800 (PST) Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2BNNT8Fv016249; Fri, 23 Dec 2022 23:32:46 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=HcJRJO3bS0aEzBawFv2YTqL9+yT53g5gAXCz77w7QI8=; b=jhWHnJXAPUQmenQqF51zAIf94LHxSlYeWFVQN6A+M2LoYdt4ONYk9qsBVMZW9YlzNaZx WoWMB6P22H4y3GWQad8WiYI5grwIJW0HToxl8RAku4RJxoBzyZVKyPEw6X67/biDDAsC xwdZiz+tT/eewKkPGpuAzN6gxchfb/q2r3aUpg5KLMQYLQUWREtBqgUm/V10cpP2B5B9 +baPzhlwkRzcRIOUSySY4bkIL0ZDRmtM/N+/kWYbeKm/s6nHZ84UffIk1AV7hymy6n0Y p7mXB9wTcEIcRroK+xwQieuwTRTQhfAUvY1sLiMpdh6KaTBnhmCwvk6zQIGPGlkLKg27 pg== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3mm8x4n4ex-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 23 Dec 2022 23:32:46 +0000 Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2BNNWjs5009841 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 23 Dec 2022 23:32:45 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 15.2.986.36; Fri, 23 Dec 2022 15:32:44 -0800 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [RFC PATCH 05/14] sound: usb: Export USB SND APIs for modules Date: Fri, 23 Dec 2022 15:31:51 -0800 Message-ID: <20221223233200.26089-6-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20221223233200.26089-1-quic_wcheng@quicinc.com> References: <20221223233200.26089-1-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-GUID: lWD0lW3dlx79i52S_coF9PjwJhGmksbZ X-Proofpoint-ORIG-GUID: lWD0lW3dlx79i52S_coF9PjwJhGmksbZ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-23_08,2022-12-23_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 suspectscore=0 phishscore=0 priorityscore=1501 impostorscore=0 bulkscore=0 lowpriorityscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2212230197 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Some vendor modules will utilize useful parsing and endpoint management APIs to start audio playback/capture. Signed-off-by: Wesley Cheng --- sound/usb/card.c | 2 ++ sound/usb/endpoint.c | 2 ++ sound/usb/helper.c | 1 + sound/usb/pcm.c | 9 ++++++--- sound/usb/pcm.h | 12 ++++++++++++ 5 files changed, 23 insertions(+), 3 deletions(-) diff --git a/sound/usb/card.c b/sound/usb/card.c index 212f55a7683c..396e5a34e23b 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -1068,6 +1068,7 @@ int snd_usb_autoresume(struct snd_usb_audio *chip) } return 0; } +EXPORT_SYMBOL(snd_usb_autoresume); void snd_usb_autosuspend(struct snd_usb_audio *chip) { @@ -1081,6 +1082,7 @@ void snd_usb_autosuspend(struct snd_usb_audio *chip) for (i = 0; i < chip->num_interfaces; i++) usb_autopm_put_interface(chip->intf[i]); } +EXPORT_SYMBOL(snd_usb_autosuspend); static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message) { diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index 310cd6fb0038..1663f9e9cb4b 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -858,6 +858,7 @@ snd_usb_endpoint_open(struct snd_usb_audio *chip, mutex_unlock(&chip->mutex); return ep; } +EXPORT_SYMBOL_GPL(snd_usb_endpoint_open); /* * snd_usb_endpoint_set_sync: Link data and sync endpoints @@ -1525,6 +1526,7 @@ int snd_usb_endpoint_get_clock_rate(struct snd_usb_audio *chip, int clock) mutex_unlock(&chip->mutex); return rate; } +EXPORT_SYMBOL(snd_usb_endpoint_prepare); /** * snd_usb_endpoint_start: start an snd_usb_endpoint diff --git a/sound/usb/helper.c b/sound/usb/helper.c index a4410267bf70..b4ed9ef3eeb3 100644 --- a/sound/usb/helper.c +++ b/sound/usb/helper.c @@ -62,6 +62,7 @@ void *snd_usb_find_csint_desc(void *buffer, int buflen, void *after, u8 dsubtype } return NULL; } +EXPORT_SYMBOL_GPL(snd_usb_find_csint_desc); /* * Wrapper for usb_control_msg(). diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 8ed165f036a0..624f555c6657 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -87,7 +87,7 @@ static snd_pcm_uframes_t snd_usb_pcm_pointer(struct snd_pcm_substream *substream /* * find a matching audio format */ -static const struct audioformat * +const struct audioformat * find_format(struct list_head *fmt_list_head, snd_pcm_format_t format, unsigned int rate, unsigned int channels, bool strict_match, struct snd_usb_substream *subs) @@ -147,8 +147,9 @@ find_format(struct list_head *fmt_list_head, snd_pcm_format_t format, } return found; } +EXPORT_SYMBOL(find_format); -static const struct audioformat * +const struct audioformat * find_substream_format(struct snd_usb_substream *subs, const struct snd_pcm_hw_params *params) { @@ -156,6 +157,7 @@ find_substream_format(struct snd_usb_substream *subs, params_rate(params), params_channels(params), true, subs); } +EXPORT_SYMBOL(find_substream_format); static int init_pitch_v1(struct snd_usb_audio *chip, int ep) { @@ -418,7 +420,7 @@ int snd_usb_pcm_resume(struct snd_usb_stream *as) return 0; } -static void close_endpoints(struct snd_usb_audio *chip, +void close_endpoints(struct snd_usb_audio *chip, struct snd_usb_substream *subs) { if (subs->data_endpoint) { @@ -432,6 +434,7 @@ static void close_endpoints(struct snd_usb_audio *chip, subs->sync_endpoint = NULL; } } +EXPORT_SYMBOL(close_endpoints); /* * hw_params callback diff --git a/sound/usb/pcm.h b/sound/usb/pcm.h index 493a4e34d78d..43a4a03dfce7 100644 --- a/sound/usb/pcm.h +++ b/sound/usb/pcm.h @@ -13,4 +13,16 @@ void snd_usb_preallocate_buffer(struct snd_usb_substream *subs); int snd_usb_audioformat_set_sync_ep(struct snd_usb_audio *chip, struct audioformat *fmt); +void close_endpoints(struct snd_usb_audio *chip, + struct snd_usb_substream *subs); +int configure_endpoints(struct snd_usb_audio *chip, + struct snd_usb_substream *subs); + +const struct audioformat * +find_format(struct list_head *fmt_list_head, snd_pcm_format_t format, + unsigned int rate, unsigned int channels, bool strict_match, + struct snd_usb_substream *subs); +const struct audioformat * +find_substream_format(struct snd_usb_substream *subs, + const struct snd_pcm_hw_params *params); #endif /* __USBAUDIO_PCM_H */