From patchwork Thu Aug 1 01:16:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816097 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3AA98C3DA7F for ; Thu, 1 Aug 2024 01:26:27 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A27D4312F; Thu, 1 Aug 2024 03:25:38 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A27D4312F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475548; bh=1Hp7NsyUYlfn3QAxb9QnxnkH97Pw2w+Y8pA0TZzpWMk=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=tuNDLrRBigBbgPafZnqWcV/FLCMdfiCnE8KH862J1f4CPCGniVonrIT/XqwBQ8eGO hGuF+4X5vimkf10K5zyJW0hx3150zHQqv/PpDEJS/RN1VuPnXmqLm+KWMHp7biRG0G dCvb3Xth5LQxglkSgWRlkz7CNq+vqG3beLBcTAjY= Received: by alsa1.perex.cz (Postfix, from userid 50401) id AFD7AF80CB9; Thu, 1 Aug 2024 03:21:30 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id E5E6AF80CBE; Thu, 1 Aug 2024 03:21:29 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id C89C0F80579; Thu, 1 Aug 2024 03:18:24 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id D0C91F805B0 for ; Thu, 1 Aug 2024 03:17:44 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz D0C91F805B0 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=UMYUguhh Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VD5qDI023993; Thu, 1 Aug 2024 01:17:43 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=PGp6ZQrpBw6E+mtDZb2UpP5A W9qYy/DIjxLaXDKBVPk=; b=UMYUguhh6KVGxRkHOJpHs5a0z/43jr3kTXLPWz4F EcS3KylkVA8myP9f5/YbefNTQbYU8o7q+hkKnUgwc2/MgzzRe+Z+a05tWi1uw/xp aZvFeNnjqPDUs9EIpin6/7/HmlNgyOULE5GsWo3MDL7fBOr96jg8E3hSJMFR9D9h DDfOcWTD1ugGXcLDN/uGyUrVFp2EKFnps/pKPRkjjRoHv33ua6NT2r3+imEQol4r hVJxS4iwe+p12gLPS44Az/+2tbIevqQ3/TY2ojK1CH+VJUSOrNxEhAqOklSs2g7H THDL+alXq/FDT5I47szEzmLL0zQNXkqcfvGD2O5nKKgNmw== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw456g0q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:43 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HgrM020097 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:42 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; Wed, 31 Jul 2024 18:17:41 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Mathias Nyman , Wesley Cheng Subject: [PATCH v24 01/34] xhci: add helper to stop endpoint and wait for completion Date: Wed, 31 Jul 2024 18:16:57 -0700 Message-ID: <20240801011730.4797-2-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: sJOvWWZv3JF6z43sxM2AcTvdSMUdrrFD X-Proofpoint-ORIG-GUID: sJOvWWZv3JF6z43sxM2AcTvdSMUdrrFD 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 priorityscore=1501 suspectscore=0 adultscore=0 clxscore=1011 impostorscore=0 malwarescore=0 lowpriorityscore=0 mlxlogscore=999 phishscore=0 bulkscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: ITVUFTNW2RBGGPR4TVPHCSZCXIUF5UC7 X-Message-ID-Hash: ITVUFTNW2RBGGPR4TVPHCSZCXIUF5UC7 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: From: Mathias Nyman Expose xhci_stop_endpoint_sync() which is a synchronous variant of xhci_queue_stop_endpoint(). This is useful for client drivers that are using the secondary interrupters, and need to stop/clean up the current session. The stop endpoint command handler will also take care of cleaning up the ring. Signed-off-by: Mathias Nyman Signed-off-by: Wesley Cheng --- drivers/usb/host/xhci.c | 39 +++++++++++++++++++++++++++++++++++++++ drivers/usb/host/xhci.h | 2 ++ 2 files changed, 41 insertions(+) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 37eb37b0affa..3a051ed32907 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -2784,6 +2784,45 @@ static int xhci_reserve_bandwidth(struct xhci_hcd *xhci, return -ENOMEM; } +/* + * Synchronous XHCI stop endpoint helper. Issues the stop endpoint command and + * waits for the command completion before returning. + */ +int xhci_stop_endpoint_sync(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, int suspend, + gfp_t gfp_flags) +{ + struct xhci_command *command; + unsigned long flags; + int ret; + + command = xhci_alloc_command(xhci, true, gfp_flags); + if (!command) + return -ENOMEM; + + spin_lock_irqsave(&xhci->lock, flags); + ret = xhci_queue_stop_endpoint(xhci, command, ep->vdev->slot_id, + ep->ep_index, suspend); + if (ret < 0) { + spin_unlock_irqrestore(&xhci->lock, flags); + goto out; + } + + xhci_ring_cmd_db(xhci); + spin_unlock_irqrestore(&xhci->lock, flags); + + wait_for_completion(command->completion); + + if (command->status == COMP_COMMAND_ABORTED || + command->status == COMP_COMMAND_RING_STOPPED) { + xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n"); + ret = -ETIME; + } +out: + xhci_free_command(xhci, command); + + return ret; +} +EXPORT_SYMBOL_GPL(xhci_stop_endpoint_sync); /* Issue a configure endpoint command or evaluate context command * and wait for it to finish. diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 30415158ed3c..1c6126ed55b0 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1914,6 +1914,8 @@ void xhci_ring_doorbell_for_active_rings(struct xhci_hcd *xhci, void xhci_cleanup_command_queue(struct xhci_hcd *xhci); void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring); unsigned int count_trbs(u64 addr, u64 len); +int xhci_stop_endpoint_sync(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, + int suspend, gfp_t gfp_flags); /* xHCI roothub code */ void xhci_set_link_state(struct xhci_hcd *xhci, struct xhci_port *port, From patchwork Thu Aug 1 01:16:58 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816100 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0E5D9C3DA64 for ; Thu, 1 Aug 2024 01:24:54 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id BFB2B301E; Thu, 1 Aug 2024 03:24:05 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz BFB2B301E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475455; bh=cUtHOLNf0R5GOdviTZVOeP6thiX8pbViVYJ0ZvcMhT0=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=Y1vKc5NGaN6q9KSqzX5s0DGSgK2JSwTqMymd80r9XmnvzzI/tvjHKE9U8JhuH026R 0AC/QR8C6BCSEpO9jlu3RBKVmijqBooQt2bRHIGsHko+OTjSO14faQVLXvLQ0q/fQj rS5wZW55615rNVaxjgNpuzNfNKWpAPoiRDyQHJLo= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 7838EF80768; Thu, 1 Aug 2024 03:21:17 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 72074F8076A; Thu, 1 Aug 2024 03:21:17 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5451AF80580; Thu, 1 Aug 2024 03:18:17 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 5BB5FF805A0 for ; Thu, 1 Aug 2024 03:17:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 5BB5FF805A0 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=fUV3t+8G Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VGDclB024192; Thu, 1 Aug 2024 01:17:43 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=db1DiRDPnPzv2WrnCumz0mnC v8rXyp8CcEMm0K1v/Ns=; b=fUV3t+8GgWjAldffE18vsDBAowSCmE9WxLH1C79M l6O7DIwrKzmTQUAKMaWRaLjgsh8kjZQ5AH0vFM26cYSmCnaJC86satoyhXJDLeZ/ xyV6BRF1FssbvK5F5THx3hpzNq1EtfeM11xxRc5FB5e0CCc0o9a8Fs50ICtZZJag qcW+RtG3KCliCzR9TJF2FF50caDnPAZhR4r5hj60eSZZYYAZ91140KVBi6nAVLxY ap0YRUffjAbC3ahfbbzoNOx3/Zp2UA1KpnKgLTxxlw+n/hilIK633Y3LGVrN0Iq2 4batYyPIQ52ZD0KT7/o2AtCCrg1pqh1j8yhfuQuq9AUy4w== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40ms43d1sn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:43 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HgZ0030334 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:42 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; Wed, 31 Jul 2024 18:17:41 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 02/34] usb: host: xhci: Repurpose event handler for skipping interrupter events Date: Wed, 31 Jul 2024 18:16:58 -0700 Message-ID: <20240801011730.4797-3-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: Ys5foNK6LHAaqNr8SWorc9dVpDIidomw X-Proofpoint-ORIG-GUID: Ys5foNK6LHAaqNr8SWorc9dVpDIidomw 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=896 suspectscore=0 phishscore=0 priorityscore=1501 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010004 Message-ID-Hash: 3TNR2HBERCGD7SVAN2OEVMEWFU2K645K X-Message-ID-Hash: 3TNR2HBERCGD7SVAN2OEVMEWFU2K645K 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: Depending on the interrupter use case, the OS may only be used to handle the interrupter event ring clean up. In these scenarios, event TRBs don't need to be handled by the OS, so introduce an xhci interrupter flag to tag if the events from an interrupter needs to be handled or not. Signed-off-by: Wesley Cheng --- drivers/usb/host/xhci-ring.c | 17 +++++++++++++---- drivers/usb/host/xhci.h | 1 + 2 files changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 9e90d2952760..80dca780317a 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2951,14 +2951,22 @@ static int handle_tx_event(struct xhci_hcd *xhci, } /* - * This function handles one OS-owned event on the event ring. It may drop - * xhci->lock between event processing (e.g. to pass up port status changes). + * This function handles one OS-owned event on the event ring, or ignores one event + * on interrupters which are non-OS owned. It may drop xhci->lock between event + * processing (e.g. to pass up port status changes). */ static int xhci_handle_event_trb(struct xhci_hcd *xhci, struct xhci_interrupter *ir, union xhci_trb *event) { u32 trb_type; + /* + * Some interrupters do not need to handle event TRBs, as they may be + * managed by another entity, but rely on the OS to clean up. + */ + if (ir->skip_events) + return 0; + trace_xhci_handle_event(ir->event_ring, &event->generic); /* @@ -3047,8 +3055,9 @@ static void xhci_clear_interrupt_pending(struct xhci_hcd *xhci, } /* - * Handle all OS-owned events on an interrupter event ring. It may drop - * and reaquire xhci->lock between event processing. + * Handle all OS-owned events on an interrupter event ring, or skip pending events + * for non OS owned interrupter event ring. It may drop and reaquire xhci->lock + * between event processing. */ static int xhci_handle_events(struct xhci_hcd *xhci, struct xhci_interrupter *ir) { diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 1c6126ed55b0..efbd1f651da4 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1430,6 +1430,7 @@ struct xhci_interrupter { struct xhci_intr_reg __iomem *ir_set; unsigned int intr_num; bool ip_autoclear; + bool skip_events; u32 isoc_bei_interval; /* For interrupter registers save and restore over suspend/resume */ u32 s3_irq_pending; From patchwork Thu Aug 1 01:16:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816323 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B44ACC3DA7F for ; Thu, 1 Aug 2024 01:26:06 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 51CD430BE; Thu, 1 Aug 2024 03:25:18 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 51CD430BE DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475528; bh=UjogX+AdlD+t8z4tRkw67O+dqsv5qD9zwwp77qCX5zM=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=UChGfXZPT1iWUifL2+uF+4z8r5QW0gER7wBWY/y0UP+8AaDAiGobye2m24L1NmrLB uyNNF+uL5x10g7XCWnrrDKVrXKlyWpLHKeYxUsoWLeWhWw41oningXZycmUr1ewU6B fMwjv0l6Na7JhCbTqSD3gBN3U5RbqHdU3tYtJT3o= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 42A07F80C74; Thu, 1 Aug 2024 03:21:28 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id D0724F80C6E; Thu, 1 Aug 2024 03:21:27 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 1C274F80579; Thu, 1 Aug 2024 03:18:23 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 8950DF805AF for ; Thu, 1 Aug 2024 03:17:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 8950DF805AF Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=eGv0QHrO 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 46VE7590030498; Thu, 1 Aug 2024 01:17:44 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=AQFYP0KH9xprwXjcQBFFYtb0 MTazm89n3if8EuNV+u8=; b=eGv0QHrOcaJpIP4mp5JFexo8cK/uOMaCExgvHcfw 8Pm6nxDQ2xgixbIMJN7/x2JWO4RhtiPSROdHt/As/2uzdXIvJoNpcb1TgAcR4Q4R xy5FMxqb1djSjem1J3C+b1U89O/jP3baFypqQBghKOjoigmxjFOxMqH8Du4Xf9T6 3CNh3fFNLpsgeCS6YrXFIhh9YuZYoeGyDjqMvbu98roFt6s8qJjnab6qmEXC2O3H HSN7yUtTFBqPztUa9Jt3mTVQLaUSBjlrjKX6mlI2KXI08jHuPPcPZMbz6mr/lcGj dD+3j0pLKTeQPGkiJFLMvALR2ErK+pnidsuG5ECedFvfng== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw446ega-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:43 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HgdF012366 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:42 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; Wed, 31 Jul 2024 18:17:42 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Mathias Nyman , Wesley Cheng Subject: [PATCH v24 03/34] xhci: sideband: add initial api to register a sideband entity Date: Wed, 31 Jul 2024 18:16:59 -0700 Message-ID: <20240801011730.4797-4-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: NIHq-ACqwOwxFOPsoeMykkMRokOaHyuE X-Proofpoint-ORIG-GUID: NIHq-ACqwOwxFOPsoeMykkMRokOaHyuE 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 clxscore=1015 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: XXRLORIJOB7ITJ6UNFZFMYZ446JKG3IP X-Message-ID-Hash: XXRLORIJOB7ITJ6UNFZFMYZ446JKG3IP 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: From: Mathias Nyman Introduce XHCI sideband, which manages the USB endpoints being requested by a client driver. This is used for when client drivers are attempting to offload USB endpoints to another entity for handling USB transfers. XHCI sideband will allow for drivers to fetch the required information about the transfer ring, so the user can submit transfers independently. Expose the required APIs for drivers to register and request for a USB endpoint and to manage XHCI secondary interrupters. Multiple ring segment page linking, proper endpoint clean up, and allowing module compliation added by Wesley Cheng to complete original concept code by Mathias Nyman. Signed-off-by: Mathias Nyman Co-developed-by: Wesley Cheng Signed-off-by: Wesley Cheng --- drivers/usb/host/Kconfig | 9 + drivers/usb/host/Makefile | 2 + drivers/usb/host/xhci-sideband.c | 419 ++++++++++++++++++++++++++++++ drivers/usb/host/xhci.h | 4 + include/linux/usb/xhci-sideband.h | 68 +++++ 5 files changed, 502 insertions(+) create mode 100644 drivers/usb/host/xhci-sideband.c create mode 100644 include/linux/usb/xhci-sideband.h diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 4448d0ab06f0..6135603c5dc4 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -104,6 +104,15 @@ config USB_XHCI_RZV2M Say 'Y' to enable the support for the xHCI host controller found in Renesas RZ/V2M SoC. +config USB_XHCI_SIDEBAND + tristate "xHCI support for sideband" + help + Say 'Y' to enable the support for the xHCI sideband capability. + provide a mechanism for a sideband datapath for payload associated + with audio class endpoints. This allows for an audio DSP to use + xHCI USB endpoints directly, allowing CPU to sleep while playing + audio + config USB_XHCI_TEGRA tristate "xHCI support for NVIDIA Tegra SoCs" depends on PHY_TEGRA_XUSB diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index be4e5245c52f..435a1e93b40b 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -32,6 +32,8 @@ endif xhci-rcar-hcd-y += xhci-rcar.o xhci-rcar-hcd-$(CONFIG_USB_XHCI_RZV2M) += xhci-rzv2m.o +obj-$(CONFIG_USB_XHCI_SIDEBAND) += xhci-sideband.o + obj-$(CONFIG_USB_PCI) += pci-quirks.o obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o diff --git a/drivers/usb/host/xhci-sideband.c b/drivers/usb/host/xhci-sideband.c new file mode 100644 index 000000000000..8e1f13fd07f7 --- /dev/null +++ b/drivers/usb/host/xhci-sideband.c @@ -0,0 +1,419 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* + * xHCI host controller sideband support + * + * Copyright (c) 2023, Intel Corporation. + * + * Author: Mathias Nyman + */ + +#include +#include + +#include "xhci.h" + +/* sideband internal helpers */ +static struct sg_table * +xhci_ring_to_sgtable(struct xhci_sideband *sb, struct xhci_ring *ring) +{ + struct xhci_segment *seg; + struct sg_table *sgt; + unsigned int n_pages; + struct page **pages; + struct device *dev; + size_t sz; + int i; + + dev = xhci_to_hcd(sb->xhci)->self.sysdev; + sz = ring->num_segs * TRB_SEGMENT_SIZE; + n_pages = PAGE_ALIGN(sz) >> PAGE_SHIFT; + pages = kvmalloc_array(n_pages, sizeof(struct page *), GFP_KERNEL); + if (!pages) + return NULL; + + sgt = kzalloc(sizeof(struct sg_table), GFP_KERNEL); + if (!sgt) { + kvfree(pages); + return NULL; + } + + seg = ring->first_seg; + /* + * Rings can potentially have multiple segments, create an array that + * carries page references to allocated segments. Utilize the + * sg_alloc_table_from_pages() to create the sg table, and to ensure + * that page links are created. + */ + for (i = 0; i < ring->num_segs; i++) { + dma_get_sgtable(dev, sgt, seg->trbs, seg->dma, + TRB_SEGMENT_SIZE); + pages[i] = sg_page(sgt->sgl); + sg_free_table(sgt); + seg = seg->next; + } + + if (sg_alloc_table_from_pages(sgt, pages, n_pages, 0, sz, GFP_KERNEL)) { + kvfree(pages); + kfree(sgt); + + return NULL; + } + /* + * Save first segment dma address to sg dma_address field for the sideband + * client to have access to the IOVA of the ring. + */ + sg_dma_address(sgt->sgl) = ring->first_seg->dma; + + return sgt; +} + +static void +__xhci_sideband_remove_endpoint(struct xhci_sideband *sb, struct xhci_virt_ep *ep) +{ + /* + * Issue a stop endpoint command when an endpoint is removed. + * The stop ep cmd handler will handle the ring cleanup. + */ + xhci_stop_endpoint_sync(sb->xhci, ep, 0, GFP_KERNEL); + + ep->sideband = NULL; + sb->eps[ep->ep_index] = NULL; +} + +/* sideband api functions */ + +/** + * xhci_sideband_add_endpoint - add endpoint to sideband access list + * @sb: sideband instance for this usb device + * @host_ep: usb host endpoint + * + * Adds an endpoint to the list of sideband accessed endpoints for this usb + * device. + * After an endpoint is added the sideband client can get the endpoint transfer + * ring buffer by calling xhci_sideband_endpoint_buffer() + * + * Return: 0 on success, negative error otherwise. + */ +int +xhci_sideband_add_endpoint(struct xhci_sideband *sb, + struct usb_host_endpoint *host_ep) +{ + struct xhci_virt_ep *ep; + unsigned int ep_index; + + mutex_lock(&sb->mutex); + ep_index = xhci_get_endpoint_index(&host_ep->desc); + ep = &sb->vdev->eps[ep_index]; + + if (ep->ep_state & EP_HAS_STREAMS) { + mutex_unlock(&sb->mutex); + return -EINVAL; + } + + /* + * Note, we don't know the DMA mask of the audio DSP device, if its + * smaller than for xhci it won't be able to access the endpoint ring + * buffer. This could be solved by not allowing the audio class driver + * to add the endpoint the normal way, but instead offload it immediately, + * and let this function add the endpoint and allocate the ring buffer + * with the smallest common DMA mask + */ + if (sb->eps[ep_index] || ep->sideband) { + mutex_unlock(&sb->mutex); + return -EBUSY; + } + + ep->sideband = sb; + sb->eps[ep_index] = ep; + mutex_unlock(&sb->mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(xhci_sideband_add_endpoint); + +/** + * xhci_sideband_remove_endpoint - remove endpoint from sideband access list + * @sb: sideband instance for this usb device + * @host_ep: usb host endpoint + * + * Removes an endpoint from the list of sideband accessed endpoints for this usb + * device. + * sideband client should no longer touch the endpoint transfer buffer after + * calling this. + * + * Return: 0 on success, negative error otherwise. + */ +int +xhci_sideband_remove_endpoint(struct xhci_sideband *sb, + struct usb_host_endpoint *host_ep) +{ + struct xhci_virt_ep *ep; + unsigned int ep_index; + + mutex_lock(&sb->mutex); + ep_index = xhci_get_endpoint_index(&host_ep->desc); + ep = sb->eps[ep_index]; + + if (!ep || !ep->sideband) { + mutex_unlock(&sb->mutex); + return -ENODEV; + } + + __xhci_sideband_remove_endpoint(sb, ep); + xhci_initialize_ring_info(ep->ring, 1); + mutex_unlock(&sb->mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(xhci_sideband_remove_endpoint); + +int +xhci_sideband_stop_endpoint(struct xhci_sideband *sb, + struct usb_host_endpoint *host_ep) +{ + struct xhci_virt_ep *ep; + unsigned int ep_index; + + ep_index = xhci_get_endpoint_index(&host_ep->desc); + ep = sb->eps[ep_index]; + + if (!ep || ep->sideband != sb) + return -EINVAL; + + return xhci_stop_endpoint_sync(sb->xhci, ep, 0, GFP_KERNEL); +} +EXPORT_SYMBOL_GPL(xhci_sideband_stop_endpoint); + +/** + * xhci_sideband_get_endpoint_buffer - gets the endpoint transfer buffer address + * @sb: sideband instance for this usb device + * @host_ep: usb host endpoint + * + * Returns the address of the endpoint buffer where xHC controller reads queued + * transfer TRBs from. This is the starting address of the ringbuffer where the + * sideband client should write TRBs to. + * + * Caller needs to free the returned sg_table + * + * Return: struct sg_table * if successful. NULL otherwise. + */ +struct sg_table * +xhci_sideband_get_endpoint_buffer(struct xhci_sideband *sb, + struct usb_host_endpoint *host_ep) +{ + struct xhci_virt_ep *ep; + unsigned int ep_index; + + ep_index = xhci_get_endpoint_index(&host_ep->desc); + ep = sb->eps[ep_index]; + + if (!ep) + return NULL; + + return xhci_ring_to_sgtable(sb, ep->ring); +} +EXPORT_SYMBOL_GPL(xhci_sideband_get_endpoint_buffer); + +/** + * xhci_sideband_get_event_buffer - return the event buffer for this device + * @sb: sideband instance for this usb device + * + * If a secondary xhci interupter is set up for this usb device then this + * function returns the address of the event buffer where xHC writes + * the transfer completion events. + * + * Caller needs to free the returned sg_table + * + * Return: struct sg_table * if successful. NULL otherwise. + */ +struct sg_table * +xhci_sideband_get_event_buffer(struct xhci_sideband *sb) +{ + if (!sb || !sb->ir) + return NULL; + + return xhci_ring_to_sgtable(sb, sb->ir->event_ring); +} +EXPORT_SYMBOL_GPL(xhci_sideband_get_event_buffer); + +/** + * xhci_sideband_create_interrupter - creates a new interrupter for this sideband + * @sb: sideband instance for this usb device + * @num_seg: number of event ring segments to allocate + * @ip_autoclear: IP autoclearing support such as MSI implemented + * + * Sets up a xhci interrupter that can be used for this sideband accessed usb + * device. Transfer events for this device can be routed to this interrupters + * event ring by setting the 'Interrupter Target' field correctly when queueing + * the transfer TRBs. + * Once this interrupter is created the interrupter target ID can be obtained + * by calling xhci_sideband_interrupter_id() + * + * Returns 0 on success, negative error otherwise + */ +int +xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, + bool ip_autoclear) +{ + int ret = 0; + + if (!sb) + return -ENODEV; + + mutex_lock(&sb->mutex); + if (sb->ir) { + ret = -EBUSY; + goto out; + } + + sb->ir = xhci_create_secondary_interrupter(xhci_to_hcd(sb->xhci), + num_seg); + if (!sb->ir) { + ret = -ENOMEM; + goto out; + } + + sb->ir->ip_autoclear = ip_autoclear; + /* skip events for secondary interrupters by default */ + sb->ir->skip_events = true; + +out: + mutex_unlock(&sb->mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(xhci_sideband_create_interrupter); + +/** + * xhci_sideband_remove_interrupter - remove the interrupter from a sideband + * @sb: sideband instance for this usb device + * + * Removes a registered interrupt for a sideband. This would allow for other + * sideband users to utilize this interrupter. + */ +void +xhci_sideband_remove_interrupter(struct xhci_sideband *sb) +{ + if (!sb || !sb->ir) + return; + + mutex_lock(&sb->mutex); + xhci_remove_secondary_interrupter(xhci_to_hcd(sb->xhci), sb->ir); + + sb->ir = NULL; + mutex_unlock(&sb->mutex); +} +EXPORT_SYMBOL_GPL(xhci_sideband_remove_interrupter); + +/** + * xhci_sideband_interrupter_id - return the interrupter target id + * @sb: sideband instance for this usb device + * + * If a secondary xhci interrupter is set up for this usb device then this + * function returns the ID used by the interrupter. The sideband client + * needs to write this ID to the 'Interrupter Target' field of the transfer TRBs + * it queues on the endpoints transfer ring to ensure transfer completion event + * are written by xHC to the correct interrupter event ring. + * + * Returns interrupter id on success, negative error othgerwise + */ +int +xhci_sideband_interrupter_id(struct xhci_sideband *sb) +{ + if (!sb || !sb->ir) + return -ENODEV; + + return sb->ir->intr_num; +} +EXPORT_SYMBOL_GPL(xhci_sideband_interrupter_id); + +/** + * xhci_sideband_register - register a sideband for a usb device + * @udev: usb device to be accessed via sideband + * + * Allows for clients to utilize XHCI interrupters and fetch transfer and event + * ring parameters for executing data transfers. + * + * Return: pointer to a new xhci_sideband instance if successful. NULL otherwise. + */ +struct xhci_sideband * +xhci_sideband_register(struct usb_device *udev) +{ + struct usb_hcd *hcd = bus_to_hcd(udev->bus); + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + struct xhci_virt_device *vdev; + struct xhci_sideband *sb; + + /* make sure the usb device is connected to a xhci controller */ + if (!udev->slot_id) + return NULL; + + sb = kzalloc_node(sizeof(*sb), GFP_KERNEL, dev_to_node(hcd->self.sysdev)); + if (!sb) + return NULL; + + mutex_init(&sb->mutex); + + /* check this device isn't already controlled via sideband */ + spin_lock_irq(&xhci->lock); + + vdev = xhci->devs[udev->slot_id]; + + if (!vdev || vdev->sideband) { + xhci_warn(xhci, "XHCI sideband for slot %d already in use\n", + udev->slot_id); + spin_unlock_irq(&xhci->lock); + kfree(sb); + return NULL; + } + + sb->xhci = xhci; + sb->vdev = vdev; + vdev->sideband = sb; + + spin_unlock_irq(&xhci->lock); + + return sb; +} +EXPORT_SYMBOL_GPL(xhci_sideband_register); + +/** + * xhci_sideband_unregister - unregister sideband access to a usb device + * @sb: sideband instance to be unregistered + * + * Unregisters sideband access to a usb device and frees the sideband + * instance. + * After this the endpoint and interrupter event buffers should no longer + * be accessed via sideband. The xhci driver can now take over handling + * the buffers. + */ +void +xhci_sideband_unregister(struct xhci_sideband *sb) +{ + struct xhci_hcd *xhci; + int i; + + if (!sb) + return; + + xhci = sb->xhci; + + mutex_lock(&sb->mutex); + for (i = 0; i < EP_CTX_PER_DEV; i++) + if (sb->eps[i]) + __xhci_sideband_remove_endpoint(sb, sb->eps[i]); + mutex_unlock(&sb->mutex); + + xhci_sideband_remove_interrupter(sb); + + spin_lock_irq(&xhci->lock); + sb->xhci = NULL; + sb->vdev->sideband = NULL; + spin_unlock_irq(&xhci->lock); + + kfree(sb); +} +EXPORT_SYMBOL_GPL(xhci_sideband_unregister); +MODULE_DESCRIPTION("XHCI sideband driver for secondary interrupter management"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index efbd1f651da4..9232c53d204a 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -693,6 +693,8 @@ struct xhci_virt_ep { int next_frame_id; /* Use new Isoch TRB layout needed for extended TBC support */ bool use_extended_tbc; + /* set if this endpoint is controlled via sideband access*/ + struct xhci_sideband *sideband; }; enum xhci_overhead_type { @@ -755,6 +757,8 @@ struct xhci_virt_device { u16 current_mel; /* Used for the debugfs interfaces. */ void *debugfs_private; + /* set if this device is registered for sideband access */ + struct xhci_sideband *sideband; }; /* diff --git a/include/linux/usb/xhci-sideband.h b/include/linux/usb/xhci-sideband.h new file mode 100644 index 000000000000..1035dae43cee --- /dev/null +++ b/include/linux/usb/xhci-sideband.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * xHCI host controller sideband support + * + * Copyright (c) 2023, Intel Corporation. + * + * Author: Mathias Nyman + */ + +#ifndef __LINUX_XHCI_SIDEBAND_H +#define __LINUX_XHCI_SIDEBAND_H + +#include +#include + +#define EP_CTX_PER_DEV 31 /* FIMXME defined twice, from xhci.h */ + +struct xhci_sideband; + +/** + * struct xhci_sideband - representation of a sideband accessed usb device. + * @xhci: The xhci host controller the usb device is connected to + * @vdev: the usb device accessed via sideband + * @eps: array of endpoints controlled via sideband + * @ir: event handling and buffer for sideband accessed device + * + * FIXME usb device accessed via sideband Keeping track of sideband accessed usb devices. + */ + +struct xhci_sideband { + struct xhci_hcd *xhci; + struct xhci_virt_device *vdev; + struct xhci_virt_ep *eps[EP_CTX_PER_DEV]; + struct xhci_interrupter *ir; + struct mutex mutex; +}; + +struct xhci_sideband * +xhci_sideband_register(struct usb_device *udev); +void +xhci_sideband_unregister(struct xhci_sideband *sb); +int +xhci_sideband_add_endpoint(struct xhci_sideband *sb, + struct usb_host_endpoint *host_ep); +int +xhci_sideband_remove_endpoint(struct xhci_sideband *sb, + struct usb_host_endpoint *host_ep); +int +xhci_sideband_stop_endpoint(struct xhci_sideband *sb, + struct usb_host_endpoint *host_ep); +struct sg_table * +xhci_sideband_get_endpoint_buffer(struct xhci_sideband *sb, + struct usb_host_endpoint *host_ep); +struct sg_table * +xhci_sideband_get_event_buffer(struct xhci_sideband *sb); + +int +xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, + bool ip_autoclear); + +void +xhci_sideband_remove_interrupter(struct xhci_sideband *sb); + +int +xhci_sideband_interrupter_id(struct xhci_sideband *sb); + +#endif /* __LINUX_XHCI_SIDEBAND_H */ + From patchwork Thu Aug 1 01:17:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816102 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 707BAC3DA64 for ; Thu, 1 Aug 2024 01:23:42 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id E65CA2F8D; Thu, 1 Aug 2024 03:23:03 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz E65CA2F8D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475393; bh=HZooWyjcRTJHzNxR3BoM3J4scbZn1Pe8IJtWKfTTaTk=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=SU56QzQGWOsNTnbOKnfPmUGpkoOfs/jbbA9ZPSMx+AE/g2T53fsoffF7PIfSMahJd aywHq76qR84wqxvDWII0LuLo/jKH44+3TaoxYWTL2KtT/4SP2M+/C03nSofUk3UbS9 2e7wszVo/hwqRzm3PynzbkH/o/oiA8jMxF6pxxTM= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 40029F806BE; Thu, 1 Aug 2024 03:21:10 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id A580DF806B7; Thu, 1 Aug 2024 03:21:09 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id A9B40F80588; Thu, 1 Aug 2024 03:18:15 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id B8973F805A1 for ; Thu, 1 Aug 2024 03:17:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B8973F805A1 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=E022ZRoW Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VJUsV0011518; Thu, 1 Aug 2024 01:17:44 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=8wY5tYBCGiXkcM+KfUXAuguh YoX1cuJtyZ+PwFdif7c=; b=E022ZRoWjuEZOqVQAAm6+ugDkTBSEG02kCGSbfAc gjxj5BF0o1aenObskFskEm1huLFATrjoNM0QDsP5f5vmhVOFB2FvuuwPJ0bXTedi 5DRc97dG0SgrlodlluNmxv6FGYsjPsZ7FlnkB+0DCtFKI9U+eR7Lfyr8fOpfujBz s7JHS8Z9TEoIvXPlaffMwNkWaRrdbSyJsLNMQBpIRQ6Ti/21dZA5GQtNHx6vplNn cT0NzCdVQb3/Gvksh1Zdcu0OHDG4eJmQqujR5qDBLirf7IsBYmpOXEF1W1rih0DH 3oH9sbnr73vXTD0fm/Xkz90Vsamb5wIhYgYlK40i62k9wg== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qugagqw7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:44 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HgYG012369 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:42 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; Wed, 31 Jul 2024 18:17:42 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 04/34] usb: xhci: Allow for secondary interrupter to set IMOD Date: Wed, 31 Jul 2024 18:17:00 -0700 Message-ID: <20240801011730.4797-5-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: x_k-Kuf9uEC0WOcchgFFzvmziOB8tL5P X-Proofpoint-ORIG-GUID: x_k-Kuf9uEC0WOcchgFFzvmziOB8tL5P 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 impostorscore=0 mlxscore=0 spamscore=0 malwarescore=0 phishscore=0 mlxlogscore=700 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: P3QSPPAXWAPBNVUPYR2R7NJYKVT5VQWS X-Message-ID-Hash: P3QSPPAXWAPBNVUPYR2R7NJYKVT5VQWS 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: When creating a secondary interrupter, add an argument for XHCI sideband clients to specify an interrupt moderation value for the interrupter context. Signed-off-by: Wesley Cheng --- drivers/usb/host/xhci-mem.c | 4 +++- drivers/usb/host/xhci-sideband.c | 4 ++-- drivers/usb/host/xhci.c | 2 +- drivers/usb/host/xhci.h | 5 ++++- include/linux/usb/xhci-sideband.h | 2 +- 5 files changed, 11 insertions(+), 6 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 3100219d6496..2ca5937b73f4 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2334,7 +2334,8 @@ xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir, } struct xhci_interrupter * -xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs) +xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs, + u32 imod_interval) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct xhci_interrupter *ir; @@ -2367,6 +2368,7 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs) return NULL; } + xhci_set_interrupter_moderation(ir, imod_interval); xhci_dbg(xhci, "Add secondary interrupter %d, max interrupters %d\n", i, xhci->max_interrupters); diff --git a/drivers/usb/host/xhci-sideband.c b/drivers/usb/host/xhci-sideband.c index 8e1f13fd07f7..40058bd68dff 100644 --- a/drivers/usb/host/xhci-sideband.c +++ b/drivers/usb/host/xhci-sideband.c @@ -254,7 +254,7 @@ EXPORT_SYMBOL_GPL(xhci_sideband_get_event_buffer); */ int xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, - bool ip_autoclear) + bool ip_autoclear, u32 imod_interval) { int ret = 0; @@ -268,7 +268,7 @@ xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, } sb->ir = xhci_create_secondary_interrupter(xhci_to_hcd(sb->xhci), - num_seg); + num_seg, imod_interval); if (!sb->ir) { ret = -ENOMEM; goto out; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 3a051ed32907..0b22342bbff1 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -347,7 +347,7 @@ static int xhci_disable_interrupter(struct xhci_interrupter *ir) } /* interrupt moderation interval imod_interval in nanoseconds */ -static int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, +int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, u32 imod_interval) { u32 imod; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 9232c53d204a..eb1d1f946cdb 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1832,7 +1832,8 @@ struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci, void xhci_free_container_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); struct xhci_interrupter * -xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs); +xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs, + u32 imod_interval); void xhci_remove_secondary_interrupter(struct usb_hcd *hcd, struct xhci_interrupter *ir); @@ -1872,6 +1873,8 @@ int xhci_alloc_tt_info(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_device *hdev, struct usb_tt *tt, gfp_t mem_flags); +int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, + u32 imod_interval); /* xHCI ring, segment, TRB, and TD functions */ dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb); diff --git a/include/linux/usb/xhci-sideband.h b/include/linux/usb/xhci-sideband.h index 1035dae43cee..5fc95dd499aa 100644 --- a/include/linux/usb/xhci-sideband.h +++ b/include/linux/usb/xhci-sideband.h @@ -56,7 +56,7 @@ xhci_sideband_get_event_buffer(struct xhci_sideband *sb); int xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, - bool ip_autoclear); + bool ip_autoclear, u32 imod_interval); void xhci_sideband_remove_interrupter(struct xhci_sideband *sb); From patchwork Thu Aug 1 01:17:01 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816093 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 988F5C3DA7F for ; Thu, 1 Aug 2024 01:28:56 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id DFD12326B; Thu, 1 Aug 2024 03:27:46 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz DFD12326B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475676; bh=URZel3GJ1C4i+NW5d6UwSxWii7XHrxOh5ZPdDEbLocA=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=dUxtoChghayx+BMeaZWrqDGpt8komPPZFKh+m56Aqv4qnfH95Q9uyrt3BzZKuHKA9 tHcWZ5EJxFTHsXqewaxzEZBHvhwxVlDlmZJu9o8tzFIIj9UstXLrRHqGoQMYFfNbrB UUIf4Kly4VHavDD77LshErRgJjlOvART6iJqkgKM= Received: by alsa1.perex.cz (Postfix, from userid 50401) id AEA3CF8976A; Thu, 1 Aug 2024 03:21:46 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 19D41F89765; Thu, 1 Aug 2024 03:21:46 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 79EDDF80579; Thu, 1 Aug 2024 03:18:33 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 2E99CF805B2 for ; Thu, 1 Aug 2024 03:17:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 2E99CF805B2 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=R8RtJya9 Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VDUJX3023986; Thu, 1 Aug 2024 01:17:44 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=9xMnK3z8W0pRjJDw9AyzHCIN be0p/pk9EDB3rOqeD1c=; b=R8RtJya97PlQbww/s0gykGukQ4cTbzUxBwugaf2Q Zx2moRsVj+lQ0KUsv+Ivdrtq7ucBZaMDzGvT9e6jnv8JR9CT7MPcsijxUPOwH0Pc oTp5qLxDAEQo+xcUVYxdManzAxuJ+iCf2E4FsJ5d7WEFH4ZXzL5nQSNWlsIPLKx1 8k/e32CCflOTbvY24lUTXono4d0Zryx1PxYW6TpmGeDe/7aMUgsdjFTMUyZRS1lY 6cz6f8k8DNpnWMoffLB5CWXIcQEIB97JPa5kpkU4EWfE/zzd761SWg6Rqbd27o7D FUQ/6VZ5X+Pes84v3Ta2uC+ZK3mcBgFYbxM0Cv6eqwIs3A== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw456g0t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:44 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HhfC030342 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:43 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; Wed, 31 Jul 2024 18:17:42 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 05/34] usb: host: xhci-mem: Cleanup pending secondary event ring events Date: Wed, 31 Jul 2024 18:17:01 -0700 Message-ID: <20240801011730.4797-6-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: QTTuTCrb35Pu5YcxakPrEOh979_zOrte X-Proofpoint-ORIG-GUID: QTTuTCrb35Pu5YcxakPrEOh979_zOrte 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 priorityscore=1501 suspectscore=0 adultscore=0 clxscore=1015 impostorscore=0 malwarescore=0 lowpriorityscore=0 mlxlogscore=900 phishscore=0 bulkscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: SM5DI4IS3GC6ZO23ZZEVNFGNEUPBSXAJ X-Message-ID-Hash: SM5DI4IS3GC6ZO23ZZEVNFGNEUPBSXAJ 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: As part of xHCI bus suspend, the XHCI is halted. However, if there are pending events in the secondary event ring, it is observed that the xHCI controller stops responding to further commands upon host or device initiated bus resume. Iterate through all pending events and update the dequeue pointer to the beginning of the event ring. Signed-off-by: Wesley Cheng --- drivers/usb/host/xhci-mem.c | 7 ++++++- drivers/usb/host/xhci-ring.c | 33 ++++++++++++++++++++++++++++++++- drivers/usb/host/xhci.c | 2 +- drivers/usb/host/xhci.h | 6 ++++++ 4 files changed, 45 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 2ca5937b73f4..60dfc59260d8 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1816,7 +1816,7 @@ xhci_remove_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir) tmp &= ERST_SIZE_MASK; writel(tmp, &ir->ir_set->erst_size); - xhci_write_64(xhci, ERST_EHB, &ir->ir_set->erst_dequeue); + xhci_update_erst_dequeue(xhci, ir, true); } } @@ -1859,6 +1859,11 @@ void xhci_remove_secondary_interrupter(struct usb_hcd *hcd, struct xhci_interrup return; } + /* + * Cleanup secondary interrupter to ensure there are no pending events. + * This also updates event ring dequeue pointer back to the start. + */ + xhci_skip_sec_intr_events(xhci, ir->event_ring, ir); intr_num = ir->intr_num; xhci_remove_interrupter(xhci, ir); diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 80dca780317a..a012ddf94fb5 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -3012,7 +3012,7 @@ static int xhci_handle_event_trb(struct xhci_hcd *xhci, struct xhci_interrupter * - When all events have finished * - To avoid "Event Ring Full Error" condition */ -static void xhci_update_erst_dequeue(struct xhci_hcd *xhci, +void xhci_update_erst_dequeue(struct xhci_hcd *xhci, struct xhci_interrupter *ir, bool clear_ehb) { @@ -3112,6 +3112,37 @@ static int xhci_handle_events(struct xhci_hcd *xhci, struct xhci_interrupter *ir return 0; } +/* + * Move the event ring dequeue pointer to skip events kept in the secondary + * event ring. This is used to ensure that pending events in the ring are + * acknowledged, so the XHCI HCD can properly enter suspend/resume. The + * secondary ring is typically maintained by an external component. + */ +void xhci_skip_sec_intr_events(struct xhci_hcd *xhci, + struct xhci_ring *ring, struct xhci_interrupter *ir) +{ + union xhci_trb *current_trb; + u64 erdp_reg; + dma_addr_t deq; + + /* disable irq, ack pending interrupt and ack all pending events */ + xhci_disable_interrupter(ir); + + /* last acked event trb is in erdp reg */ + erdp_reg = xhci_read_64(xhci, &ir->ir_set->erst_dequeue); + deq = (dma_addr_t)(erdp_reg & ERST_PTR_MASK); + if (!deq) { + xhci_err(xhci, "event ring handling not required\n"); + return; + } + + current_trb = ir->event_ring->dequeue; + /* read cycle state of the last acked trb to find out CCS */ + ring->cycle_state = le32_to_cpu(current_trb->event_cmd.flags) & TRB_CYCLE; + + xhci_handle_events(xhci, ir); +} + /* * xHCI spec says we can get an interrupt, and if the HC has an error condition, * we might get bad data out of the event ring. Section 4.10.2.7 has a list of diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 0b22342bbff1..608062d8fab6 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -333,7 +333,7 @@ static int xhci_enable_interrupter(struct xhci_interrupter *ir) return 0; } -static int xhci_disable_interrupter(struct xhci_interrupter *ir) +int xhci_disable_interrupter(struct xhci_interrupter *ir) { u32 iman; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index eb1d1f946cdb..35e5079ce621 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1836,6 +1836,8 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs, u32 imod_interval); void xhci_remove_secondary_interrupter(struct usb_hcd *hcd, struct xhci_interrupter *ir); +void xhci_skip_sec_intr_events(struct xhci_hcd *xhci, + struct xhci_ring *ring, struct xhci_interrupter *ir); /* xHCI host controller glue */ typedef void (*xhci_get_quirks_t)(struct device *, struct xhci_hcd *); @@ -1875,6 +1877,7 @@ int xhci_alloc_tt_info(struct xhci_hcd *xhci, struct usb_tt *tt, gfp_t mem_flags); int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, u32 imod_interval); +int xhci_disable_interrupter(struct xhci_interrupter *ir); /* xHCI ring, segment, TRB, and TD functions */ dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb); @@ -1924,6 +1927,9 @@ void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring); unsigned int count_trbs(u64 addr, u64 len); int xhci_stop_endpoint_sync(struct xhci_hcd *xhci, struct xhci_virt_ep *ep, int suspend, gfp_t gfp_flags); +void xhci_update_erst_dequeue(struct xhci_hcd *xhci, + struct xhci_interrupter *ir, + bool clear_ehb); /* xHCI roothub code */ void xhci_set_link_state(struct xhci_hcd *xhci, struct xhci_port *port, From patchwork Thu Aug 1 01:17:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816106 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EB364C3DA64 for ; Thu, 1 Aug 2024 01:19:03 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 7E2012E17; Thu, 1 Aug 2024 03:18:44 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 7E2012E17 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475134; bh=F7zrIJD+7OxZZUn6azNQp8e/JrBWOqVtN2WdAYS8Jp8=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=cjuUwxd4+Yp0dx6zBfof2sjpuBeVae+of8vC4nG7iTEq2yPeI1dh6ZKUSvbNHxJYl eBBhm9XX7ZKzR8BztuyjEQPDmY9/68D8SM/KWbmF88YZw7TUs8znOyy3Ev4vyEXeC/ 47q2z0jPEVh0fLNCDu8QCgsx7ouH8nXI+vDhuCt4= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 63321F805FE; Thu, 1 Aug 2024 03:18:08 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id AD60EF80601; Thu, 1 Aug 2024 03:18:07 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 9DAF0F805E7; Thu, 1 Aug 2024 03:18:04 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 77C26F8057A for ; Thu, 1 Aug 2024 03:17:45 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 77C26F8057A Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=iV9XZY8Z Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VIpUw6006305; Thu, 1 Aug 2024 01:17:44 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=TJlXXNrJkY1fVyOJrRWBa8hJ 3g/kgbYSmW9DlMZI70o=; b=iV9XZY8ZXCx8cp4n81+y+Uzhnn+9eHEUvRYVfnU7 VVyksgHkWP1lEela7uzmY+kyX8aA3Ap443I4Tbt+Mx2UhUsURMaQ+WfC9NUi1jY2 GMoFJpfII8nUqZvGye9pnHh6MIDp/FTyQF1Hfbq3Xs9HRs9J7rQIB39O1082+AvD w/jKSSUQelNETuDXRpvSBVRE3I9Iqhf47JvOb7S8rpCWW2xmDWLjmyUCwe4hguWg AruFajLBHkdaNb/LU74+ANMIifLIKWPYumt9BxFuRQ+01GSUINxEBOo7HUThk0so 9z9WRhLnE31lnpJM7+MatS9uYSl/HS3gma+TCLTnRvBqxw== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qjpjahk8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:44 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711Hh3K012372 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:43 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; Wed, 31 Jul 2024 18:17:42 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 06/34] usb: host: xhci-mem: Allow for interrupter clients to choose specific index Date: Wed, 31 Jul 2024 18:17:02 -0700 Message-ID: <20240801011730.4797-7-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: 29VWy-gDyDwW5Zvic5btLcH9SDjiKDWn X-Proofpoint-ORIG-GUID: 29VWy-gDyDwW5Zvic5btLcH9SDjiKDWn 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 mlxlogscore=767 spamscore=0 malwarescore=0 bulkscore=0 phishscore=0 priorityscore=1501 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: SEDBZXSPBYJJP3AJAYW3XMJUSDM2VOLK X-Message-ID-Hash: SEDBZXSPBYJJP3AJAYW3XMJUSDM2VOLK 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: Some clients may operate only on a specific XHCI interrupter instance. Allow for the associated class driver to request for the interrupter that it requires. Signed-off-by: Wesley Cheng --- drivers/usb/host/xhci-mem.c | 29 ++++++++++++++++------------- drivers/usb/host/xhci-sideband.c | 4 ++-- drivers/usb/host/xhci.h | 2 +- include/linux/usb/xhci-sideband.h | 2 +- 4 files changed, 20 insertions(+), 17 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 60dfc59260d8..997e8f27acb8 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2340,7 +2340,7 @@ xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir, struct xhci_interrupter * xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs, - u32 imod_interval) + u32 imod_interval, int intr_num) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct xhci_interrupter *ir; @@ -2355,29 +2355,32 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs, return NULL; spin_lock_irq(&xhci->lock); - /* Find available secondary interrupter, interrupter 0 is reserved for primary */ for (i = 1; i < xhci->max_interrupters; i++) { - if (xhci->interrupters[i] == NULL) { - err = xhci_add_interrupter(xhci, ir, i); - break; + if ((intr_num > 0 && i == intr_num) || intr_num <= 0) { + if (xhci->interrupters[i] == NULL) { + err = xhci_add_interrupter(xhci, ir, i); + if (err) { + spin_unlock_irq(&xhci->lock); + goto free_ir; + } + break; + } } } - spin_unlock_irq(&xhci->lock); - if (err) { - xhci_warn(xhci, "Failed to add secondary interrupter, max interrupters %d\n", - xhci->max_interrupters); - xhci_free_interrupter(xhci, ir); - return NULL; - } - xhci_set_interrupter_moderation(ir, imod_interval); + xhci_dbg(xhci, "Add secondary interrupter %d, max interrupters %d\n", i, xhci->max_interrupters); return ir; + +free_ir: + xhci_free_interrupter(xhci, ir); + + return NULL; } EXPORT_SYMBOL_GPL(xhci_create_secondary_interrupter); diff --git a/drivers/usb/host/xhci-sideband.c b/drivers/usb/host/xhci-sideband.c index 40058bd68dff..6cc8492649d6 100644 --- a/drivers/usb/host/xhci-sideband.c +++ b/drivers/usb/host/xhci-sideband.c @@ -254,7 +254,7 @@ EXPORT_SYMBOL_GPL(xhci_sideband_get_event_buffer); */ int xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, - bool ip_autoclear, u32 imod_interval) + bool ip_autoclear, u32 imod_interval, int intr_num) { int ret = 0; @@ -268,7 +268,7 @@ xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, } sb->ir = xhci_create_secondary_interrupter(xhci_to_hcd(sb->xhci), - num_seg, imod_interval); + num_seg, imod_interval, intr_num); if (!sb->ir) { ret = -ENOMEM; goto out; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 35e5079ce621..bf50b56fef14 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1833,7 +1833,7 @@ void xhci_free_container_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); struct xhci_interrupter * xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs, - u32 imod_interval); + u32 imod_interval, int intr_num); void xhci_remove_secondary_interrupter(struct usb_hcd *hcd, struct xhci_interrupter *ir); void xhci_skip_sec_intr_events(struct xhci_hcd *xhci, diff --git a/include/linux/usb/xhci-sideband.h b/include/linux/usb/xhci-sideband.h index 5fc95dd499aa..1231821b2947 100644 --- a/include/linux/usb/xhci-sideband.h +++ b/include/linux/usb/xhci-sideband.h @@ -56,7 +56,7 @@ xhci_sideband_get_event_buffer(struct xhci_sideband *sb); int xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, - bool ip_autoclear, u32 imod_interval); + bool ip_autoclear, u32 imod_interval, int intr_num); void xhci_sideband_remove_interrupter(struct xhci_sideband *sb); From patchwork Thu Aug 1 01:17:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816328 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 700F4C3DA7F for ; Thu, 1 Aug 2024 01:23:28 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id BBE592F6B; Thu, 1 Aug 2024 03:22:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz BBE592F6B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475378; bh=ltXX8jP7pn8uVpu5KSPpn79cIYm5HfBGTiCUp+UHg9k=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=DH6GjPoKmLi67Ne7cFRaqP7AwxaiH0lp2NHtc8mx7pnMI8eGUjNlmn4D0BVFf0zFb PyWTTTn8GUQnI5Q7mWxLbFeOLS0YJGg2Qc0runrHgzFMog+fhAU+Vf7F0TrIqaawFG ePMREDL2WDxX+f1njSevoaCbn+9WCZXwXidBsKzo= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 08676F80691; Thu, 1 Aug 2024 03:21:06 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 1CCF9F8068F; Thu, 1 Aug 2024 03:21:06 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 4C639F80589; Thu, 1 Aug 2024 03:18:12 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 1E84BF80588 for ; Thu, 1 Aug 2024 03:17:46 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 1E84BF80588 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=HLaUv7bF Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4710lrmi010011; Thu, 1 Aug 2024 01:17:45 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=AN6ZcvMWlqNjOXpEc6FdiWAh kqYqJERCJ3muWeL5xeM=; b=HLaUv7bFwOZxqPr6ofMC9hD3vM6Plvi12PmS6jfz 4mO/gaElbIMkl+xTq97N92bmOB1qd9b2Br75Mopuw0QlspiRxn9aXqR53vdzdeGT 2aST6vd1Mgya5THeMfdDrPd25UGXRE34sS2MZNBV83N92U9ou/C4wkR3sv0KNTRu o9/YwaBJpF0YYZq5Wjrnbzh1RdmJqHbhplBK710yjWHdPaw8xcyP75qVpxb6iEFU wVgiIJ1dsOXN/l+HOCEW4AmGU7gmuFiTR0wX4VpYuLKRbS97ILIsAz7sVzN4KABk /69iPSW7b6ZPSrHt1Q7uzXSA0L8JQxa8zZum+YYfilSURw== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qnbaa0vv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:45 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HhCL030346 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:43 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; Wed, 31 Jul 2024 18:17:43 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 07/34] usb: host: xhci-plat: Set XHCI max interrupters if property is present Date: Wed, 31 Jul 2024 18:17:03 -0700 Message-ID: <20240801011730.4797-8-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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-ORIG-GUID: c55okcwrEdOFQjxEd2TkomB8lBXbKIt_ X-Proofpoint-GUID: c55okcwrEdOFQjxEd2TkomB8lBXbKIt_ 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 mlxlogscore=999 phishscore=0 mlxscore=0 impostorscore=0 clxscore=1015 suspectscore=0 adultscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: U3KN7TP5IHRWVZBV2M5GHMNCOCPCSKN7 X-Message-ID-Hash: U3KN7TP5IHRWVZBV2M5GHMNCOCPCSKN7 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: Some platforms may want to limit the number of XHCI interrupters allocated. This is passed to xhci-plat as a device property. Ensure that this is read and the max_interrupters field is set. Signed-off-by: Wesley Cheng --- drivers/usb/host/xhci-plat.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 3d071b875308..1c12cadc02a1 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -258,6 +258,8 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s device_property_read_u32(tmpdev, "imod-interval-ns", &xhci->imod_interval); + device_property_read_u16(tmpdev, "num-hc-interrupters", + &xhci->max_interrupters); } /* From patchwork Thu Aug 1 01:17:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816104 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8CD1CC3DA7F for ; Thu, 1 Aug 2024 01:22:24 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 7F42D2ED0; Thu, 1 Aug 2024 03:21:55 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 7F42D2ED0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475325; bh=QVgWaaYEEcsUT6bvDe9VM8T2WMmhn1VpGiCa8jvulI4=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=gkx1QPUTuSzrgQuIQzyHV6p1np8jG2DoUxTnApMZKFffuP4K3pjhmFenoB1m18VBH Y+W5By8P0NXJf4UCkKITJNae16Fs+bxHG9buWs/KisjlW1WMlobY6VPDZLJjDDnbek Lx+thi23Jq0Fc5g+c9x8DhJJwKN4HmUc2draXPEU= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 26D85F80607; Thu, 1 Aug 2024 03:20:59 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 943EEF80615; Thu, 1 Aug 2024 03:20:58 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id A1E0EF80607; Thu, 1 Aug 2024 03:18:08 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 85BEFF80580 for ; Thu, 1 Aug 2024 03:17:46 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 85BEFF80580 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=V/u1bCxZ 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 46VE7591030498; Thu, 1 Aug 2024 01:17:45 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=VKPJYciOWdn4CHsMb0ZGUDDG nNrSGe/49oKInxiIGdw=; b=V/u1bCxZ+NxHPwv7EIK8IHG1EQ1t4YGUzAL+ettK RXrBMY6Yt26RHR2hL1eUx5kwpGx3Y4QWF8l6c8tdDd2dZknYdI1Dsy16ggNbTKEz i4eIzgMgo14MqL+ZFTXvuFZbqxu29ZZ/c1rWSwib4B/HfjRi8lx3MPC3fUJ2eQFD nYG1GNnSRTAeUdGHJauOTxjSK/iztPMWxZhSO5nGVY5JYV/F+/d4kEOxYsXI+lAe uY1KYJKD6P/qJ/qzXa2Pf8xMKYFYs2b0IMsV9R8wjbuKSK3Z0wTddmW3W6UZlqC1 p5shk92BE4gqWoD9YaNcdBAGcIaHR+wk7TS8mi8Sx4A2yQ== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw446egd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:45 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711Hhmx030349 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:43 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; Wed, 31 Jul 2024 18:17:43 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 08/34] usb: dwc3: Specify maximum number of XHCI interrupters Date: Wed, 31 Jul 2024 18:17:04 -0700 Message-ID: <20240801011730.4797-9-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: GwKTR-p7fLT0BWLiIUSlKSJskbYsZvhh X-Proofpoint-ORIG-GUID: GwKTR-p7fLT0BWLiIUSlKSJskbYsZvhh 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 priorityscore=1501 adultscore=0 mlxlogscore=926 clxscore=1015 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: YOVA5TI2SABKASO6RVZRV42U5O4WJUS6 X-Message-ID-Hash: YOVA5TI2SABKASO6RVZRV42U5O4WJUS6 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: Allow for the DWC3 host driver to pass along XHCI property that defines how many interrupters to allocate. This is in relation for the number of event rings that can be potentially used by other processors within the system. Acked-by: Thinh Nguyen Signed-off-by: Wesley Cheng --- drivers/usb/dwc3/core.c | 12 ++++++++++++ drivers/usb/dwc3/core.h | 2 ++ drivers/usb/dwc3/host.c | 3 +++ 3 files changed, 17 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7ee61a89520b..7aa6f9700757 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1573,6 +1573,7 @@ static void dwc3_get_properties(struct dwc3 *dwc) u8 tx_thr_num_pkt_prd = 0; u8 tx_max_burst_prd = 0; u8 tx_fifo_resize_max_num; + u16 num_hc_interrupters; const char *usb_psy_name; int ret; @@ -1595,6 +1596,9 @@ static void dwc3_get_properties(struct dwc3 *dwc) */ tx_fifo_resize_max_num = 6; + /* default to a single XHCI interrupter */ + num_hc_interrupters = 1; + dwc->maximum_speed = usb_get_maximum_speed(dev); dwc->max_ssp_rate = usb_get_maximum_ssp_rate(dev); dwc->dr_mode = usb_get_dr_mode(dev); @@ -1648,6 +1652,12 @@ static void dwc3_get_properties(struct dwc3 *dwc) &tx_thr_num_pkt_prd); device_property_read_u8(dev, "snps,tx-max-burst-prd", &tx_max_burst_prd); + device_property_read_u16(dev, "num-hc-interrupters", + &num_hc_interrupters); + /* DWC3 core allowed to have a max of 8 interrupters */ + if (num_hc_interrupters > 8) + num_hc_interrupters = 8; + dwc->do_fifo_resize = device_property_read_bool(dev, "tx-fifo-resize"); if (dwc->do_fifo_resize) @@ -1736,6 +1746,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->imod_interval = 0; dwc->tx_fifo_resize_max_num = tx_fifo_resize_max_num; + + dwc->num_hc_interrupters = num_hc_interrupters; } /* check whether the core supports IMOD */ diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 3781c736c1a1..95e6989d116e 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1077,6 +1077,7 @@ struct dwc3_scratchpad_array { * @tx_max_burst_prd: max periodic ESS transmit burst size * @tx_fifo_resize_max_num: max number of fifos allocated during txfifo resize * @clear_stall_protocol: endpoint number that requires a delayed status phase + * @num_hc_interrupters: number of host controller interrupters * @hsphy_interface: "utmi" or "ulpi" * @connected: true when we're connected to a host, false otherwise * @softconnect: true when gadget connect is called, false when disconnect runs @@ -1318,6 +1319,7 @@ struct dwc3 { u8 tx_max_burst_prd; u8 tx_fifo_resize_max_num; u8 clear_stall_protocol; + u16 num_hc_interrupters; const char *hsphy_interface; diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index a171b27a7845..3e5687d6d631 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -180,6 +180,9 @@ int dwc3_host_init(struct dwc3 *dwc) if (DWC3_VER_IS_WITHIN(DWC3, ANY, 300A)) props[prop_idx++] = PROPERTY_ENTRY_BOOL("quirk-broken-port-ped"); + props[prop_idx++] = PROPERTY_ENTRY_U16("num-hc-interrupters", + dwc->num_hc_interrupters); + if (prop_idx) { ret = device_create_managed_software_node(&xhci->dev, props, NULL); if (ret) { From patchwork Thu Aug 1 01:17:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816098 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B50EFC3DA64 for ; Thu, 1 Aug 2024 01:25:57 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id AE0C430B3; Thu, 1 Aug 2024 03:25:09 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz AE0C430B3 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475519; bh=lCGQI6ig7vhfsTjJmP2RlEzGbBCbERdVOwHvgZPRHOU=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=utdiLVz1HtJVnSrA1BnsvuIhixmw0Hh2yHM8G2/BrvlvF6MArT77cYHZwN5PxU6TD y7CWOQZG95q4hXFUoWPfRJqXRGLK9lxMP3+BAfx5LLs4u0xbPfxni4TjLwJu5dqsKG Oxges2+V2NHVmfs8KMzq7Qt2L2rMiA14InmSBEWY= Received: by alsa1.perex.cz (Postfix, from userid 50401) id AB3A6F80C43; Thu, 1 Aug 2024 03:21:26 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id ACDFDF80C32; Thu, 1 Aug 2024 03:21:25 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 3C750F80579; Thu, 1 Aug 2024 03:18:22 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 6EB99F805AE for ; Thu, 1 Aug 2024 03:17:47 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 6EB99F805AE Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=FY6jizwz Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VMOhV2027545; Thu, 1 Aug 2024 01:17:45 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=yiSq+iF91qM9cPuIYAGuBEsF QsRmsw18Er+5qXrgMj4=; b=FY6jizwzOCvQT+/yAijUFPV7rnjZI3dFD2AyEwer 2yPmrdiwmtNSGkg5wfRkYnYQvbbOzvjSPeMyx/O9zP7e/ScoPfrTUnK4fC1pPSX2 Mt7J22TCs8UQT7/+lFlJQw6MgRNb0tCFaCKleavRnr947VDL8RJY/AV60zR+UcYE XKPHfC+Mct+ERFCJ/BJ+Yz61v3nI27I/vkEJfefnnNsHtyVIdrRVmfugocq7rvqp Po5rHdxI4JZWR1Fzy5qTdnm7zs5eJvljgyeTfWRd6l5DPf1u8tU/lRh7frbAK/UK XhOaXduz9VqMYXxV6CM0pHu9QI+vcXuTLEkRYeBXqDLmqQ== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40q232wce0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:45 +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 4711HiPZ026877 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:44 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; Wed, 31 Jul 2024 18:17:43 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 09/34] ASoC: Add SOC USB APIs for adding an USB backend Date: Wed, 31 Jul 2024 18:17:05 -0700 Message-ID: <20240801011730.4797-10-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: M5peKGg06r2wz3-qAlPIHrv6jgmGujgV X-Proofpoint-ORIG-GUID: M5peKGg06r2wz3-qAlPIHrv6jgmGujgV 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 malwarescore=0 bulkscore=0 priorityscore=1501 spamscore=0 adultscore=0 mlxscore=0 mlxlogscore=999 clxscore=1015 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: 3ZELQPKU3LLDMCPF2B3AF5EGW37XTZ6S X-Message-ID-Hash: 3ZELQPKU3LLDMCPF2B3AF5EGW37XTZ6S 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: Some platforms may have support for offloading USB audio devices to a dedicated audio DSP. Introduce a set of APIs that allow for management of USB sound card and PCM devices enumerated by the USB SND class driver. This allows for the ASoC components to be aware of what USB devices are available for offloading. Signed-off-by: Wesley Cheng --- include/sound/soc-usb.h | 92 +++++++++++++++++ sound/soc/Kconfig | 10 ++ sound/soc/Makefile | 2 + sound/soc/soc-usb.c | 216 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 320 insertions(+) create mode 100644 include/sound/soc-usb.h create mode 100644 sound/soc/soc-usb.c diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h new file mode 100644 index 000000000000..20394b3552cd --- /dev/null +++ b/include/sound/soc-usb.h @@ -0,0 +1,92 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef __LINUX_SND_SOC_USB_H +#define __LINUX_SND_SOC_USB_H + +/** + * struct snd_soc_usb_device + * @card_idx - sound card index associated with USB device + * @pcm_idx - PCM device index associated with USB device + * @chip_idx - USB sound chip array index + * @num_playback - number of playback streams + * @num_capture - number of capture streams + * @list - list head for SoC USB devices + **/ +struct snd_soc_usb_device { + int card_idx; + int pcm_idx; + int chip_idx; + int num_playback; + int num_capture; + struct list_head list; +}; + +/** + * struct snd_soc_usb + * @list - list head for SND SOC struct list + * @component - reference to ASoC component + * @num_supported_streams - number of supported concurrent sessions + * @connection_status_cb - callback to notify connection events + * @priv_data - driver data + **/ +struct snd_soc_usb { + struct list_head list; + struct snd_soc_component *component; + unsigned int num_supported_streams; + int (*connection_status_cb)(struct snd_soc_usb *usb, + struct snd_soc_usb_device *sdev, bool connected); + void *priv_data; +}; + +#if IS_ENABLED(CONFIG_SND_SOC_USB) +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); + +struct snd_soc_usb *snd_soc_usb_allocate_port(struct snd_soc_component *component, + int num_streams, void *data); +void snd_soc_usb_free_port(struct snd_soc_usb *usb); +void snd_soc_usb_add_port(struct snd_soc_usb *usb); +void snd_soc_usb_remove_port(struct snd_soc_usb *usb); +#else +static inline int snd_soc_usb_connect(struct device *usbdev, + struct snd_soc_usb_device *sdev) +{ + return -ENODEV; +} + +static inline int snd_soc_usb_disconnect(struct device *usbdev, + struct snd_soc_usb_device *sdev) +{ + return -EINVAL; +} + +static inline void *snd_soc_usb_find_priv_data(struct device *dev) +{ + return NULL; +} + +static inline struct snd_soc_usb *snd_soc_usb_allocate_port( + struct snd_soc_component *component, + int num_streams, void *data) +{ + return ERR_PTR(-ENOMEM); +} + +static inline void snd_soc_usb_free_port(struct snd_soc_usb *usb) +{ } + +static inline void snd_soc_usb_add_port(struct snd_soc_usb *usb) +{ + return -EINVAL; +} + +static inline void snd_soc_usb_remove_port(struct snd_soc_usb *usb) +{ + return -ENODEV; +} +#endif /* IS_ENABLED(CONFIG_SND_SOC_USB) */ +#endif /*__LINUX_SND_SOC_USB_H */ diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig index a52afb423b46..c993705c8ac2 100644 --- a/sound/soc/Kconfig +++ b/sound/soc/Kconfig @@ -84,6 +84,16 @@ config SND_SOC_UTILS_KUNIT_TEST config SND_SOC_ACPI tristate +config SND_SOC_USB + tristate "SoC based USB audio offloading" + depends on SND_USB_AUDIO + help + Enable this option if an ASoC platform card has support to handle + USB audio offloading. This enables the SoC USB layer, which will + notifies the ASoC USB DPCM backend DAI link about available USB audio + devices. Based on the notifications, sequences to enable the audio + stream can be taken based on the design. + # All the supported SoCs source "sound/soc/adi/Kconfig" source "sound/soc/amd/Kconfig" diff --git a/sound/soc/Makefile b/sound/soc/Makefile index fd61847dd1eb..adf9d9203778 100644 --- a/sound/soc/Makefile +++ b/sound/soc/Makefile @@ -35,6 +35,8 @@ endif obj-$(CONFIG_SND_SOC_ACPI) += snd-soc-acpi.o +obj-$(CONFIG_SND_SOC_USB) += soc-usb.o + obj-$(CONFIG_SND_SOC) += snd-soc-core.o obj-$(CONFIG_SND_SOC) += codecs/ obj-$(CONFIG_SND_SOC) += generic/ diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c new file mode 100644 index 000000000000..b8a87e3fc6b2 --- /dev/null +++ b/sound/soc/soc-usb.c @@ -0,0 +1,216 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ +#include +#include +#include +#include +#include "../usb/card.h" + +static DEFINE_MUTEX(ctx_mutex); +static LIST_HEAD(usb_ctx_list); + +static struct device_node *snd_soc_find_phandle(struct device *dev) +{ + struct device_node *node; + + node = of_parse_phandle(dev->of_node, "usb-soc-be", 0); + if (!node) + return ERR_PTR(-ENODEV); + + return node; +} + +static struct snd_soc_usb *snd_soc_usb_ctx_lookup(struct device_node *node) +{ + struct snd_soc_usb *ctx; + + if (!node) + return NULL; + + mutex_lock(&ctx_mutex); + list_for_each_entry(ctx, &usb_ctx_list, list) { + if (ctx->component->dev->of_node == node) { + mutex_unlock(&ctx_mutex); + return ctx; + } + } + mutex_unlock(&ctx_mutex); + + return NULL; +} + +static struct snd_soc_usb *snd_soc_find_usb_ctx(struct device *dev) +{ + struct snd_soc_usb *ctx; + struct device_node *node; + + node = snd_soc_find_phandle(dev); + if (!IS_ERR(node)) { + ctx = snd_soc_usb_ctx_lookup(node); + of_node_put(node); + } else { + ctx = snd_soc_usb_ctx_lookup(dev->of_node); + } + + return ctx ? ctx : NULL; +} + +/** + * snd_soc_usb_find_priv_data() - Retrieve private data stored + * @dev: device reference + * + * Fetch the private data stored in the USB SND SOC structure. + * + */ +void *snd_soc_usb_find_priv_data(struct device *dev) +{ + struct snd_soc_usb *ctx; + + ctx = snd_soc_find_usb_ctx(dev); + + return ctx ? ctx->priv_data : NULL; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_find_priv_data); + +/** + * snd_soc_usb_allocate_port() - allocate a SOC USB device + * @component: USB DPCM backend DAI component + * @num_streams: number of offloading sessions supported + * @data: private data + * + * Allocate and initialize a SOC USB device. This will populate parameters that + * are used in subsequent sequences. + * + */ +struct snd_soc_usb *snd_soc_usb_allocate_port(struct snd_soc_component *component, + int num_streams, void *data) +{ + struct snd_soc_usb *usb; + + usb = kzalloc(sizeof(*usb), GFP_KERNEL); + if (!usb) + return ERR_PTR(-ENOMEM); + + usb->component = component; + usb->priv_data = data; + usb->num_supported_streams = num_streams; + + return usb; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_allocate_port); + +/** + * snd_soc_usb_free_port() - free a SOC USB device + * @usb: allocated SOC USB device + + * Free and remove the SOC USB device from the available list of devices. + * + */ +void snd_soc_usb_free_port(struct snd_soc_usb *usb) +{ + snd_soc_usb_remove_port(usb); + kfree(usb); +} +EXPORT_SYMBOL_GPL(snd_soc_usb_free_port); + +/** + * snd_soc_usb_add_port() - Add a USB backend port + * @usb: soc usb device to add + * + * Register a USB backend device to the SND USB SOC framework. Memory is + * allocated as part of the USB backend device. + * + */ +void snd_soc_usb_add_port(struct snd_soc_usb *usb) +{ + mutex_lock(&ctx_mutex); + list_add_tail(&usb->list, &usb_ctx_list); + mutex_unlock(&ctx_mutex); +} +EXPORT_SYMBOL_GPL(snd_soc_usb_add_port); + +/** + * snd_soc_usb_remove_port() - Remove a USB backend port + * @usb: soc usb device to remove + * + * Remove a USB backend device from USB SND SOC. Memory is freed when USB + * backend is removed. + * + */ +void snd_soc_usb_remove_port(struct snd_soc_usb *usb) +{ + struct snd_soc_usb *ctx, *tmp; + + mutex_lock(&ctx_mutex); + list_for_each_entry_safe(ctx, tmp, &usb_ctx_list, list) { + if (ctx == usb) { + list_del(&ctx->list); + break; + } + } + mutex_unlock(&ctx_mutex); +} +EXPORT_SYMBOL_GPL(snd_soc_usb_remove_port); + +/** + * snd_soc_usb_connect() - Notification of USB device connection + * @usbdev: USB bus device + * @sdev: USB SND device to add + * + * Notify of a new USB SND device connection. The sdev->card_idx can be used to + * handle how the DPCM backend selects, which device to enable USB offloading + * on. + * + */ +int snd_soc_usb_connect(struct device *usbdev, struct snd_soc_usb_device *sdev) +{ + struct snd_soc_usb *ctx; + + if (!usbdev) + return -ENODEV; + + ctx = snd_soc_find_usb_ctx(usbdev); + if (IS_ERR(ctx)) + return -ENODEV; + + mutex_lock(&ctx_mutex); + if (ctx->connection_status_cb) + ctx->connection_status_cb(ctx, sdev, true); + mutex_unlock(&ctx_mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_connect); + +/** + * snd_soc_usb_disconnect() - Notification of USB device disconnection + * @usbdev: USB bus device + * @sdev: USB SND device to remove + * + * Notify of a new USB SND device disconnection to the USB backend. + * + */ +int snd_soc_usb_disconnect(struct device *usbdev, struct snd_soc_usb_device *sdev) +{ + struct snd_soc_usb *ctx; + + if (!usbdev) + return -ENODEV; + + ctx = snd_soc_find_usb_ctx(usbdev); + if (IS_ERR(ctx)) + return -ENODEV; + + mutex_lock(&ctx_mutex); + if (ctx->connection_status_cb) + ctx->connection_status_cb(ctx, sdev, false); + mutex_unlock(&ctx_mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_disconnect); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("SoC USB driver for offloading"); From patchwork Thu Aug 1 01:17:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816103 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E138AC3DA7F for ; Thu, 1 Aug 2024 01:23:04 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id D48462F2E; Thu, 1 Aug 2024 03:22:26 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz D48462F2E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475356; bh=5OuRtri+O39xqDjbps1Ea4vqUKfFnCTZbIfxRcPmTq8=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=PH4u5Z0QPyhS+x7DIZ4sD/uK5h8uDXjTb0B0Z8lSspN83NDgzDwBnTHdRJ2p94+u6 jOh6aOO222sXKExAluxRkpiIpXPR8QpcW0ay6HGfyx/9WuUYcLyqMH4Nga1HDz//8N U4oqEIKT88rQPZflazSSkROGXkz4Wb505ufBCNwo= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 9382EF80684; Thu, 1 Aug 2024 03:21:04 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id D6EACF80674; Thu, 1 Aug 2024 03:21:03 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B61EEF805EC; Thu, 1 Aug 2024 03:18:10 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id A1624F80589 for ; Thu, 1 Aug 2024 03:17:47 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz A1624F80589 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=XHyt0Lj6 Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VIeo9Z005957; Thu, 1 Aug 2024 01:17:45 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=UnL6mbrRKUuoRnppUsxhGnDv wBYZvbEw7Dv7AsbkRdQ=; b=XHyt0Lj6Wk/nZac7h9qee25O00lfZpfbC64BQzQs 6gngEeVjcnyLw/XDg+86dQcuT61TkFzO/QHr479d8alMO7BDraOZxFIoESoj1sKR m2U7zTJuvX/7Sl+v1vcVtm/V5pXN3wE1bzhSDOqcFjgaMyrFG16rFfziRREXldPF UyB/ZNlhmgr7ylbkciHHl2S6n6SwcgpQNjMjNiEA1/A95UlmjSQUBrRpfUZpu843 YWm5GSOGXKuXS0drahQ82uMeNzW+fFX+oGsSugEHGnmdPI6SJby+qBDuNnJ7aQQ/ lS7yezEBolvJFBwjowsgdGWAqLABPj9wPAvI4lD/8hCeMQ== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qjpjahk9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:45 +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 4711HiFx026881 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:44 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; Wed, 31 Jul 2024 18:17:43 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 10/34] ASoC: usb: Create SOC USB SND jack kcontrol Date: Wed, 31 Jul 2024 18:17:06 -0700 Message-ID: <20240801011730.4797-11-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: yVuWHTcp9iYZ1Ri0S1Dm8ED9OnD-Z3-Q X-Proofpoint-ORIG-GUID: yVuWHTcp9iYZ1Ri0S1Dm8ED9OnD-Z3-Q 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 mlxlogscore=822 spamscore=0 malwarescore=0 bulkscore=0 phishscore=0 priorityscore=1501 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: PMS5HSUF7STNSW6VSMUSTERSHZ5J2SHJ X-Message-ID-Hash: PMS5HSUF7STNSW6VSMUSTERSHZ5J2SHJ 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 | 17 +++++++++++ sound/soc/soc-usb.c | 62 ++++++++++++++++++++++++++++++++++++++++- 2 files changed, 78 insertions(+), 1 deletion(-) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index 20394b3552cd..d6b576f971ae 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 + /** * struct snd_soc_usb_device * @card_idx - sound card index associated with USB device @@ -46,6 +48,10 @@ 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_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); void snd_soc_usb_free_port(struct snd_soc_usb *usb); @@ -69,6 +75,17 @@ static inline void *snd_soc_usb_find_priv_data(struct device *dev) return NULL; } +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 b8a87e3fc6b2..fe2a75a28af4 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); @@ -57,6 +59,64 @@ static struct snd_soc_usb *snd_soc_find_usb_ctx(struct device *dev) return ctx ? ctx : NULL; } +/* 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 + * + * 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); + /** * snd_soc_usb_find_priv_data() - Retrieve private data stored * @dev: device reference From patchwork Thu Aug 1 01:17:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816099 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 48658C3DA7F for ; Thu, 1 Aug 2024 01:25:27 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 2B7AC3068; Thu, 1 Aug 2024 03:24:37 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 2B7AC3068 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475487; bh=We2PXyGMDfnGoL4xXnM5bIUMn1vj5jh6gYcAzSzb8PA=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=SSqanl1K7msqrnaJ/jLhxySYxRDaXVDrcZD1O7rwtVydFDYW2lp+fnYo+6vkJMGIw zoQpdV+njrfP/7j/TW8RzEYpzzJbMUtFWh/7ONiO/LrPVx1G9eLcGQjG2ebqiNjW5r VnzsXZTDn1+P/5t2AUdslJDci1aZSwnRKZ1PAVq0= Received: by alsa1.perex.cz (Postfix, from userid 50401) id E9D71F80863; Thu, 1 Aug 2024 03:21:21 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 0A3ADF8081A; Thu, 1 Aug 2024 03:21:21 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 34600F80580; Thu, 1 Aug 2024 03:18:18 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 69A17F80269 for ; Thu, 1 Aug 2024 03:17:47 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 69A17F80269 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=LR5AdAWZ 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 46VDgOpX029572; Thu, 1 Aug 2024 01:17:46 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=dWkbUsq8HJ7+0Yi3DGcFN1c1 OEx7yBs1I+aB6rSpVZM=; b=LR5AdAWZGCpXV2z4kXsoaDu2aRH7sdU3eBnJf2mX Ja7jgPf7ptfC0Nwu/HUgIe66B5VV8bOTIi0kYfMqTm7wl4L+iakn8mxR1mOET3tb he1+NrnLvHr2oW22fMLW+Awfrct0zcyx+jT3B/1E0mtKewIg+4Ho0NQ40gh0XR7z XBiFw/OrwuCRnBpJ+ZCWxSLj7RZ/gKIpaxsOHKbdljvi2o8YwrF+HIiKyPpFN0rw Zu8MNuq0Lc1/WzsOnBczbvZGArnE1fwOLVRV51UKi1QqavZgAyckUsxon4zF3l0B O+D80Hu5hY+8LdFzOp75laUkjxc//hDHYD/3cxK9ZZWG5g== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw446egf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:45 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711Hibs012381 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:44 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; Wed, 31 Jul 2024 18:17:44 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 11/34] ASoC: usb: Fetch ASoC card and pcm device information Date: Wed, 31 Jul 2024 18:17:07 -0700 Message-ID: <20240801011730.4797-12-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: sdH2EMAcWWkpWfEl5aEzAu-CG9UM2Hbl X-Proofpoint-ORIG-GUID: sdH2EMAcWWkpWfEl5aEzAu-CG9UM2Hbl 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 clxscore=1015 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: XXKPFDSRACU574BOGU47WDN4JGIUTNZS X-Message-ID-Hash: XXKPFDSRACU574BOGU47WDN4JGIUTNZS 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: 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 --- include/sound/soc-usb.h | 16 ++++++++++++++++ sound/soc/soc-usb.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 44 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index d6b576f971ae..a167e3de0a78 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -8,6 +8,11 @@ #include +enum snd_soc_usb_kctl { + SND_SOC_USB_KCTL_CARD_ROUTE, + SND_SOC_USB_KCTL_PCM_ROUTE, +}; + /** * struct snd_soc_usb_device * @card_idx - sound card index associated with USB device @@ -32,6 +37,7 @@ struct snd_soc_usb_device { * @component - reference to ASoC component * @num_supported_streams - number of supported concurrent sessions * @connection_status_cb - callback to notify connection events + * @get_offload_dev - callback to fetch mapped ASoC device * @priv_data - driver data **/ struct snd_soc_usb { @@ -40,6 +46,8 @@ struct snd_soc_usb { unsigned int num_supported_streams; int (*connection_status_cb)(struct snd_soc_usb *usb, struct snd_soc_usb_device *sdev, bool connected); + int (*get_offload_dev)(struct snd_soc_component *component, + int card, int pcm, enum snd_soc_usb_kctl route); void *priv_data; }; @@ -51,6 +59,8 @@ 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 soc_usb_get_offload_device(struct device *dev, int card, int pcm, + enum snd_soc_usb_kctl route); struct snd_soc_usb *snd_soc_usb_allocate_port(struct snd_soc_component *component, int num_streams, void *data); @@ -86,6 +96,12 @@ static inline int snd_soc_usb_disable_offload_jack(struct snd_soc_component *com return -ENODEV; } +static int soc_usb_get_offload_device(struct device *dev, int card, int pcm, + enum snd_soc_usb_kctl route) +{ + 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 fe2a75a28af4..3c217ac67c57 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -117,6 +117,34 @@ int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component) } EXPORT_SYMBOL_GPL(snd_soc_usb_disable_offload_jack); +/** + * soc_usb_get_offload_device - Set active USB offload path + * @dev - USB device to get offload status + * @card - USB card index + * @pcm - USB PCM device index + * + * Fetch the current status for the USB SND card and PCM device indexes + * specified. + */ +int soc_usb_get_offload_device(struct device *dev, int card, int pcm, + enum snd_soc_usb_kctl 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->get_offload_dev) + ret = ctx->get_offload_dev(ctx->component, card, pcm, route); + mutex_unlock(&ctx_mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(soc_usb_get_offload_device); + /** * snd_soc_usb_find_priv_data() - Retrieve private data stored * @dev: device reference From patchwork Thu Aug 1 01:17:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816105 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 61A57C3DA7F for ; Thu, 1 Aug 2024 01:21:54 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 47558191C; Thu, 1 Aug 2024 03:21:29 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 47558191C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475299; bh=gd0jvFf6d1417W/dh9Gj+fbuNT4Y+qCeB0xvkknIUUQ=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=IvMWeqGycjZyKUmB6m1g44EUUtDCYGd4LCFusCLJVflADQ+kwWIRkQniY7oV1b7H7 Sxr7JjoFD2ROJAVKvbNlTLszIl0+94ixd+O80E5VqX6Ap26OPKn+ScTJ2wR5Y7i14H W6QdES2ojW1VIFSbfCK+7qtID3C/SvrgyyJwQJas= Received: by alsa1.perex.cz (Postfix, from userid 50401) id DAB89F805E5; Thu, 1 Aug 2024 03:20:54 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id E2671F805C1; Thu, 1 Aug 2024 03:20:53 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B6C53F805E6; Thu, 1 Aug 2024 03:18:06 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 1329DF8026A for ; Thu, 1 Aug 2024 03:17:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 1329DF8026A Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=A+V1snKP Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VDutWA022998; Thu, 1 Aug 2024 01:17:46 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=Nnrb9R0TCvvgf3fvYU7EkA66 Cu8xCEzm7jqgS2bG/lk=; b=A+V1snKPLLDVCv3y7lrIGHR5Amm6QlXjlY0gt71v TBwD9/0/sIKFz9nNlc4F9wJW83XfltmLHu0yt6/SA850OskgN/zk48kC0PsmLJaL gkC3PPy81t1v2wMlzWhXDIOovQr+R8W8IoV7w6q+gFg14PdXjtseSrXozy/w2w4X CNxVd7jve/gh7fbsFqoWy082cm9GWA+neEz+8dlMQ0tSLOqgy2EIx9Sw32qYS9le Q6nEJQddzru4SakBxTzCdfN77YTBrA/yg46CXpSHBQ4pBImAUsT0qvprponmvD8f aCVWQwSdhweRElO+e1xBi/HiA9qyD+Ddo8FxUTChugRLxA== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40msnecwxg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:46 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711Hi0B020138 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:45 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 15.2.1544.9; Wed, 31 Jul 2024 18:17:44 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 12/34] ASoC: doc: Add documentation for SOC USB Date: Wed, 31 Jul 2024 18:17:08 -0700 Message-ID: <20240801011730.4797-13-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: wWLx9BOK0r-h9MvQwIbGRsTu3SwxXLX0 X-Proofpoint-ORIG-GUID: wWLx9BOK0r-h9MvQwIbGRsTu3SwxXLX0 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=999 priorityscore=1501 clxscore=1015 spamscore=0 mlxscore=0 bulkscore=0 suspectscore=0 impostorscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: T2JDTYA2LC65WBBBH5LIB46CAOFBHMDO X-Message-ID-Hash: T2JDTYA2LC65WBBBH5LIB46CAOFBHMDO 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: With the introduction of the soc-usb driver, add documentation highlighting details on how to utilize the new driver and how it interacts with different components in USB SND and ASoC. It provides examples on how to implement the drivers that will need to be introduced in order to enable USB audio offloading. Signed-off-by: Wesley Cheng --- Documentation/sound/soc/index.rst | 1 + Documentation/sound/soc/usb.rst | 435 ++++++++++++++++++++++++++++++ 2 files changed, 436 insertions(+) create mode 100644 Documentation/sound/soc/usb.rst diff --git a/Documentation/sound/soc/index.rst b/Documentation/sound/soc/index.rst index e57df2dab2fd..8bed8f8f48da 100644 --- a/Documentation/sound/soc/index.rst +++ b/Documentation/sound/soc/index.rst @@ -18,3 +18,4 @@ The documentation is spilt into the following sections:- jack dpcm codec-to-codec + usb diff --git a/Documentation/sound/soc/usb.rst b/Documentation/sound/soc/usb.rst new file mode 100644 index 000000000000..acd90ad0a4d9 --- /dev/null +++ b/Documentation/sound/soc/usb.rst @@ -0,0 +1,435 @@ +================ +ASoC USB support +================ + +Overview +======== +In order to leverage the existing USB sound device support in ALSA, the +ASoC USB APIs are introduced to allow for the entities to communicate +with one another. + +One potential use case would be to support USB audio offloading, which is +an implementation that allows for an external DSP on the SoC to handle the +transfer of audio data over the USB bus. This would let the main +processor to stay in lower power modes for longer durations. The following +is an example design of how the ASoC and ALSA pieces can be connected +together to achieve this: + +:: + + USB | ASoC + | _________________________ + | | ASoC Platform card | + | |_________________________| + | | | + | ___V____ ____V____ + | |ASoC BE | |ASoC FE | + | |DAI LNK | |DAI LNK | + | |________| |_________| + | ^ ^ ^ + | | |________| + | ___V____ | + | |SOC-USB | | + ________ ________ | | | + |USB SND |<--->|USBSND |<------------>|________| | + |(card.c)| |offld |<---------- | + |________| |________|___ | | | + ^ ^ | | | ____________V_________ + | | | | | |IPC | + __ V_______________V_____ | | | |______________________| + |USB SND (endpoint.c) | | | | ^ + |_________________________| | | | | + ^ | | | ___________V___________ + | | | |->|audio DSP | + ___________V_____________ | | |_______________________| + |XHCI HCD |<- | + |_________________________| | + + +SOC USB driver +============== +Structures +---------- +``struct snd_soc_usb`` + + - ``list``: list head for SND SOC struct list + - ``component``: reference to ASoC component + - ``num_supported_streams``: number of supported concurrent sessions + - ``connection_status_cb``: callback to notify connection events + - ``get_offload_dev``: callback to fetch selected USB sound card/PCM device + - ``priv_data``: driver data + +The snd_soc_usb structure can be referenced using the ASoC platform card +device, or a USB device (udev->dev). This is created by the ASoC BE DAI +link, and the USB sound entity will be able to pass information to the +ASoC BE DAI link using this structure. + +``struct snd_soc_usb_device`` + + - ``card_idx``: sound card index associated with USB sound device + - ``pcm_idx``: pcm device index associated with the USB sound device + - ``chip_idx``: USB sound chip array index + - ``num_playback``: number of playback streams + - ``num_capture``: number of capture streams + - ``list``: list head for the USB sound device list + +The struct snd_soc_usb_device is created by the USB sound offload driver. +This will carry basic parameters/limitations that will be used to +determine the possible offloading paths for this USB audio device. + +Functions +--------- +.. code-block:: rst + + const char *snd_soc_usb_get_components_tag(bool playback); +.. + + - ``playback``: direction of audio stream + +**snd_soc_usb_get_components_tag()** returns the tag used for describing if USB +offloading is supported for appending to a sound card's components string. + +Returns a tag based on the direction of the audio stream. + +.. code-block:: rst + + int snd_soc_usb_find_format(int card_idx, struct snd_pcm_hw_params *params, + int direction) +.. + + - ``card_idx``: the index into the USB sound chip array. + - ``params``: Requested PCM parameters from the USB DPCM BE DAI link + - ``direction``: capture or playback + +**snd_soc_usb_find_format()** ensures that the requested audio profile being +requested by the external DSP is supported by the USB device. + +Returns 0 on success, and -EOPNOTSUPP on failure. + +.. code-block:: rst + + int snd_soc_usb_connect(struct device *usbdev, struct snd_soc_usb_device *sdev) +.. + + - ``usbdev``: the usb device that was discovered + - ``sdev``: capabilities of the device + +**snd_soc_usb_connect()** notifies the ASoC USB DCPM BE DAI link of a USB +audio device detection. This can be utilized in the BE DAI +driver to keep track of available USB audio devices. This is intended +to be called by the USB offload driver residing in USB SND. + +Returns 0 on success, negative error code on failure. + +.. code-block:: rst + + int snd_soc_usb_disconnect(struct device *usbdev, struct snd_soc_usb_device *sdev) +.. + + - ``usbdev``: the usb device that was removed + - ``sdev``: capabilities to free + +**snd_soc_usb_disconnect()** notifies the ASoC USB DCPM BE DAI link of a USB +audio device removal. This is intended to be called by the USB offload +driver that resides in USB SND. + +.. code-block:: rst + + void *snd_soc_usb_find_priv_data(struct device *usbdev) +.. + + - ``usbdev``: the usb device to reference to find private data + +**snd_soc_usb_find_priv_data()** fetches the private data saved to the SOC USB +device. + +Returns pointer to priv_data on success, NULL on failure. + +.. code-block:: rst + + int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component) +.. + + - ``component``: ASoC component to add the jack + +**snd_soc_usb_setup_offload_jack()** is a helper to add a sound jack control to +the platform sound card. This will allow for consistent naming to be used on +designs that support USB audio offloading. + +Returns 0 on success, negative otherwise. + +.. code-block:: rst + + int snd_soc_usb_disable_offload_jack(struct snd_soc_component *component) +.. + + - ``component``: ASoC component to disable the jack + +**snd_soc_usb_disable_offload_jack()** is a helper to disable a sound jack control +on the platform sound card. + +Returns 0 on success, negative otherwise. + +.. code-block:: rst + + int soc_usb_get_offload_device(struct device *dev, int card, int pcm, + enum snd_soc_usb_kctl route) +.. + + - ``dev``: USB device to look up offload path mapping + - ``card``: USB sound card index + - ``pcm``: USB sound PCM device index + - ``route``: kcontrol type + +**soc_usb_get_offload_device()** is a registered callback to the USB BE DAI link +to fetch the information about the mapped ASoC devices for executing USB audio +offload for the device. + +Returns 0 on success, negative otherwise. + +.. code-block:: rst + + struct snd_soc_usb *snd_soc_usb_allocate_port(struct snd_soc_component *component, + int num_supported_streams, void *data); +.. + + - ``component``: DPCM BE DAI link component + - ``num_supported_streams``: number of active streams supported by external DSP + - ``data``: private data + +**snd_soc_usb_allocate_port()** allocates a SOC USB device and populates standard +parameters that is used for further operations. + +Returns a pointer to struct soc_usb on success, negative on error. + +.. code-block:: rst + + void snd_soc_usb_free_port(struct snd_soc_usb *usb); +.. + + - ``usb``: SOC USB device to free + +**snd_soc_usb_free_port()** frees a SOC USB device. + +.. code-block:: rst + + void snd_soc_usb_add_port(struct snd_soc_usb *usb); +.. + + - ``usb``: SOC USB device to add + +**snd_soc_usb_add_port()** add an allocated SOC USB device to the SOC USB framework. +Once added, this device can be referenced by further operations. + +.. code-block:: rst + + void snd_soc_usb_remove_port(struct snd_soc_usb *usb); +.. + + - ``usb``: SOC USB device to remove + +**snd_soc_usb_remove_port()** removes a SOC USB device from the SOC USB framework. +After removing a device, any SOC USB operations would not be able to reference the +device removed. + +How to Register to SOC USB +-------------------------- +The ASoC DPCM USB BE DAI link is the entity responsible for allocating and +registering the SOC USB device on the component bind. Likewise, it will +also be responsible for freeing the allocated resources. An example can +be shown below: + +.. code-block:: rst + + static int q6usb_component_probe(struct snd_soc_component *component) + { + ... + data->usb = snd_soc_usb_allocate_port(component, 1, &data->priv); + if (!data->usb) + return -ENOMEM; + + usb->connection_status_cb = q6usb_alsa_connection_cb; + + ret = snd_soc_usb_add_port(usb); + if (ret < 0) { + dev_err(component->dev, "failed to add usb port\n"); + goto free_usb; + } + ... + } + + static void q6usb_component_remove(struct snd_soc_component *component) + { + ... + snd_soc_usb_remove_port(data->usb); + snd_soc_usb_free_port(data->usb); + } + + static const struct snd_soc_component_driver q6usb_dai_component = { + .probe = q6usb_component_probe, + .remove = q6usb_component_remove, + .name = "q6usb-dai-component", + ... + }; +.. + +BE DAI links can pass along vendor specific information as part of the +call to allocate the SOC USB device. This will allow any BE DAI link +parameters or settings to be accessed by the USB offload driver that +resides in USB SND. + +USB Audio Device Connection Flow +-------------------------------- +USB devices can be hotplugged into the USB root hub at any point in time. +The BE DAI link should be aware of the current state of the physical USB +port, i.e. if there are any USB devices with audio interface(s) connected. +connection_status_cb() can be used to notify the BE DAI link of any change. + +This is called whenever there is a USB SND interface bind or remove event, +using snd_soc_usb_connect() or snd_soc_usb_disconnect(): + +.. code-block:: rst + + static void qc_usb_audio_offload_probe(struct snd_usb_audio *chip) + { + ... + snd_soc_usb_connect(usb_get_usb_backend(udev), sdev); + ... + } + + static void qc_usb_audio_offload_disconnect(struct snd_usb_audio *chip) + { + ... + snd_soc_usb_disconnect(usb_get_usb_backend(chip->dev), dev->sdev); + ... + } +.. + +In order to account for conditions where driver or device existence is +not guaranteed, USB SND exposes snd_usb_rediscover_devices() to resend the +connect events for any identified USB audio interfaces. Consider the +the following situtation: + + **usb_audio_probe()** + | --> USB audio streams allocated and saved to usb_chip[] + | --> Propagate connect event to USB offload driver in USB SND + | --> **snd_soc_usb_connect()** exits as USB BE DAI link is not ready + + BE DAI link component probe + | --> DAI link is probed and SOC USB port is allocated + | --> The USB audio device connect event is missed + +To ensure connection events are not missed, **snd_usb_rediscover_devices()** +is executed when the SOC USB device is registered. Now, when the BE DAI +link component probe occurs, the following highlights the sequence: + + BE DAI link component probe + | --> DAI link is probed and SOC USB port is allocated + | --> SOC USB device added, and **snd_usb_rediscover_devices()** runs + + **snd_usb_rediscover_devices()** + | --> Traverses through usb_chip[] and for non-NULL entries issue + | **connection_status_cb()** + +In the case where the USB offload driver is unbound, while USB SND is ready, +the **snd_usb_rediscover_devices()** is called during module init. This allows +for the offloading path to also be enabled with the following flow: + + **usb_audio_probe()** + | --> USB audio streams allocated and saved to usb_chip[] + | --> Propagate connect event to USB offload driver in USB SND + | --> USB offload driver **NOT** ready! + + BE DAI link component probe + | --> DAI link is probed and SOC USB port is allocated + | --> No USB connect event due to missing USB offload driver + + USB offload driver probe + | --> **qc_usb_audio_offload_init()** + | --> Calls **snd_usb_rediscover_devices()** to notify of devices + +USB Offload Related Kcontrols +============================= +Details +------- +A set of kcontrols can be utilized by applications to help select the proper sound +devices to enable USB audio offloading. SOC USB exposes the get_offload_dev() +callback that designs can use to ensure that the proper indices are returned to the +application. + +Implementation +-------------- + +**Example:** + + **Sound Cards**: + + :: + + 0 [SM8250MTPWCD938]: sm8250 - SM8250-MTP-WCD9380-WSA8810-VA-D + SM8250-MTP-WCD9380-WSA8810-VA-DMIC + 1 [Seri ]: USB-Audio - Plantronics Blackwire 3225 Seri + Plantronics Plantronics Blackwire 3225 Seri at usb-xhci-hcd.1.auto-1.1, full sp + 2 [C320M ]: USB-Audio - Plantronics C320-M + Plantronics Plantronics C320-M at usb-xhci-hcd.1.auto-1.2, full speed + + **USB Sound Card** - card#1: + + :: + + USB Offload Playback Route PCM#0 -1, -1 (range -1->255) + + **USB Sound Card** - card#2: + + :: + + USB Offload Playback Route PCM#0 0, 1 (range -1->255) + +The above example shows a scenario where the system has one ASoC platform card +(card#0) and two USB sound devices connected (card#1 and card#2). When reading +the available kcontrols for each USB audio device, the following kcontrol lists +the mapped offload path for the specific device: + + "USB Offload Playback Route#*" + +The kcontrol is indexed, because a USB audio device could potentially have +several PCM devices. The above kcontrols are defined as: + + - ``USB Offload Playback Route PCM`` **(R)**: Returns the ASoC platform sound + card and PCM device index. The output "0, 1" (card index, PCM device index) + signifies that there is an available offload path for the USB SND device + through card#0-PCM device#1. If "-1, -1" is seen, then no offload path is + available for the USB SND device. + +USB Offload Playback Route Kcontrol +----------------------------------- +In order to allow for vendor specific implementations on audio offloading device +selection, the SOC USB layer exposes the following: + +.. code-block:: rst + + int (*get_offload_dev)(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol); +.. + +These are specific for the **USB Offload Playback Route PCM#** kcontrol. + +When users issue get calls to the kcontrol, the registered SOC USB callbacks will +execute the registered function calls to the DPCM BE DAI link. + +**Callback Registration:** + +.. code-block:: rst + + static int q6usb_component_probe(struct snd_soc_component *component) + { + ... + usb = snd_soc_usb_allocate_port(component, 1, &data->priv); + if (IS_ERR(usb)) + return -ENOMEM; + + usb->connection_status_cb = q6usb_alsa_connection_cb; + usb->get_offload_dev = q6usb_get_offload_dev; + + ret = snd_soc_usb_add_port(usb); +.. From patchwork Thu Aug 1 01:17:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816332 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8DE74C3DA64 for ; Thu, 1 Aug 2024 01:18:42 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id DBB162DC9; Thu, 1 Aug 2024 03:18:24 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz DBB162DC9 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475114; bh=izD+DbozS8oGydYFz+5Vb7dIzvHhxa3xSOkF47CTxH8=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=RbSSyuJmjmezSPJ9G+HlZiz31PCfBMuxDWIc70b+W9Hed+xrBZmvnvSwVsfOe/fDU 4qgqc9RrWmH9Uh6kuNQmuQrdl4TdN+Pm01PDCClcjp+GsKQ3F+Qu9X27GA66KIKNwK g7moirSl9HzFqZn8bgWb/gmitMJXJLUZygfGGmhs= Received: by alsa1.perex.cz (Postfix, from userid 50401) id E0226F805DA; Thu, 1 Aug 2024 03:18:02 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 9738AF805C9; Thu, 1 Aug 2024 03:18:02 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 65A52F805A9; Thu, 1 Aug 2024 03:17:55 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 0C4E7F80269 for ; Thu, 1 Aug 2024 03:17:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 0C4E7F80269 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=W8a8hguu 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 46VNMbev030523; Thu, 1 Aug 2024 01:17:46 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=DYLWwo/G+1Jgv2CP4pXZ8GM4 oRunCFe5DUVQ7F3XSlY=; b=W8a8hguujs00OcPpNn5uDap/sLoigiddDEY8DILN IR/DnqPoPvx5f3DwCrNzCbowXZpiLBur8SH7856b9Vfb+YbVqZctRQY+JNO1W06Y cgGfV7Qa/ARsi4rWmpCbCL7UUB3awGutP33FiTtbrbfRlCUqTofU7tgwk80PpFgU UtaoSWw9RirfLDLrR6Ia1/XCH7y/2GM9CpLyoza2k5+iAyKO179nbNtfxMojK2K3 SQapshRmDax610FSMfdy4Xq7U+AG0QJZMPSByfwshSes+FNVcd08q4i9f+3WYB5J FZAzbbhMTJEWxJU6aaFLY0y30F9bawDAQtEszSZuSCQ8+g== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qm0825bp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:46 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA01.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711Hj54026894 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:45 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 15.2.1544.9; Wed, 31 Jul 2024 18:17:44 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 13/34] ASoC: dt-bindings: Update example for enabling USB offload on SM8250 Date: Wed, 31 Jul 2024 18:17:09 -0700 Message-ID: <20240801011730.4797-14-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: 4Jxg3kxzMJetKVzayKSptjZagDJySRLr X-Proofpoint-ORIG-GUID: 4Jxg3kxzMJetKVzayKSptjZagDJySRLr 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 bulkscore=0 mlxscore=0 priorityscore=1501 mlxlogscore=999 spamscore=0 clxscore=1015 malwarescore=0 impostorscore=0 phishscore=0 lowpriorityscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: DKOQNJPR6T52IRHNKVXFPVMZAHTSDCI6 X-Message-ID-Hash: DKOQNJPR6T52IRHNKVXFPVMZAHTSDCI6 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: Add an example on enabling of USB offload for the Q6DSP. The routing can be done by the mixer, which can pass the multimedia stream to the USB backend. Acked-by: Rob Herring Signed-off-by: Wesley Cheng --- .../devicetree/bindings/sound/qcom,sm8250.yaml | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml index b2e15ebbd1bc..f2d708f899bf 100644 --- a/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml +++ b/Documentation/devicetree/bindings/sound/qcom,sm8250.yaml @@ -229,6 +229,21 @@ examples: sound-dai = <&vamacro 0>; }; }; + + usb-dai-link { + link-name = "USB Playback"; + cpu { + sound-dai = <&q6afedai USB_RX>; + }; + + codec { + sound-dai = <&usbdai USB_RX>; + }; + + platform { + sound-dai = <&q6routing>; + }; + }; }; - | From patchwork Thu Aug 1 01:17:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816327 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 82D23C3DA7F for ; Thu, 1 Aug 2024 01:23:50 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 4C72E2FA2; Thu, 1 Aug 2024 03:23:10 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 4C72E2FA2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475400; bh=2TQXo2YMYhg/mBJxKuqafaOEZef1g+SCKODQN1pqdkU=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=Jj3UpcmBFOdt3RB8JuTY+KQlXD1RLZYNpE/agcP5c0M1YwzW+/3LhF/iq+4QXzKaT ToDupdOgdvfKNt74LC/HWMp2ATOGwpA+ZQZVHD4icMddARQXZtxdsDglXUxrfIMfp3 W9oiHxsJlmVR567xhd1L+MLdH6IHAHA3xnn3aJrs= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 40072F806DE; Thu, 1 Aug 2024 03:21:12 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 8C0C5F806E2; Thu, 1 Aug 2024 03:21:11 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 35859F80588; Thu, 1 Aug 2024 03:18:16 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 9FCD7F8059F for ; Thu, 1 Aug 2024 03:17:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 9FCD7F8059F Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=lwycA8eM Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VCUi9n010039; Thu, 1 Aug 2024 01:17:46 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=/ZM8SPXr7udKkYr/SDUmnoP1 IOgbHf5SfkdSPWJ27XA=; b=lwycA8eMGRxOEVKNNmV7LirxUscsIXVGXXpk5oRN Hhpa9LxUoCz2MG2d2Sj4z4KgGm9L37dfWFkpXV+hkx+ZatHp86uuouMcloIWk3AB OomPCKXktlmxcdmxC3p96fwf8XCIQM+6/0OPybzbgklm/2mzbiFu+jaY8tafO375 re3lcGHXhY9S2ftl5QMhsvbthkx1MWaJIqYcwZHHbVuhb5iQ33u6hKLcRjC5pEEI roQvx4ljUqTXiVBkHKaHszMpjTJ6WcQHV6+TxSPYNdsXn/K7bzsXL3YEssfJlkPh UQ1SxDJE8EDvTQgNFP92Ln9gOFevTPvBTNF+4w3Enoy1bg== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qnbaa0vx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:46 +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 4711HjMv026892 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:45 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 15.2.1544.9; Wed, 31 Jul 2024 18:17:45 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 14/34] ASoC: dt-bindings: qcom,q6dsp-lpass-ports: Add USB_RX port Date: Wed, 31 Jul 2024 18:17:10 -0700 Message-ID: <20240801011730.4797-15-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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-ORIG-GUID: V_BFnefTkhDUMtNdQdcccXO5x8r7S_6Z X-Proofpoint-GUID: V_BFnefTkhDUMtNdQdcccXO5x8r7S_6Z 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 mlxlogscore=991 phishscore=0 mlxscore=0 impostorscore=0 clxscore=1015 suspectscore=0 adultscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: EZUHE3IFX5T2VDTJIJTMTPECCZFZRGOY X-Message-ID-Hash: EZUHE3IFX5T2VDTJIJTMTPECCZFZRGOY 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: Q6DSP supports handling of USB playback audio data if USB audio offloading is enabled. Add a new definition for the USB_RX AFE port, which is referenced when the AFE port is started. Acked-by: Krzysztof Kozlowski Signed-off-by: Wesley Cheng --- include/dt-bindings/sound/qcom,q6dsp-lpass-ports.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/dt-bindings/sound/qcom,q6dsp-lpass-ports.h b/include/dt-bindings/sound/qcom,q6dsp-lpass-ports.h index 39f203256c4f..6d1ce7f5da51 100644 --- a/include/dt-bindings/sound/qcom,q6dsp-lpass-ports.h +++ b/include/dt-bindings/sound/qcom,q6dsp-lpass-ports.h @@ -139,6 +139,7 @@ #define DISPLAY_PORT_RX_5 133 #define DISPLAY_PORT_RX_6 134 #define DISPLAY_PORT_RX_7 135 +#define USB_RX 136 #define LPASS_CLK_ID_PRI_MI2S_IBIT 1 #define LPASS_CLK_ID_PRI_MI2S_EBIT 2 From patchwork Thu Aug 1 01:17:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816330 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3622FC3DA64 for ; Thu, 1 Aug 2024 01:22:08 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id F3D052E99; Thu, 1 Aug 2024 03:21:43 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz F3D052E99 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475314; bh=9GImG1uvrSv3ftSZjvPK/IWX3xCwU2NzohBrdUtKIUE=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=Ln1ofj4fheyGUSlmZ71KYHHHkR0R+Ldx1dZ6Lg+9f25UfiighNF+U+zvmOd5DHVwY bVzz7aNYfpidYtQfOxC7zptze778wakjeCjn+tdFryjY/rSCNS/6CiBj60otxEk4FY +S6T7dzPdD/15vpwf2TsXMjSiaoj19YZ5QqbK0aQ= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0341BF805F8; Thu, 1 Aug 2024 03:20:56 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id C5568F805E0; Thu, 1 Aug 2024 03:20:55 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 7A340F805EC; Thu, 1 Aug 2024 03:18:07 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 32C5DF800E3 for ; Thu, 1 Aug 2024 03:17:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 32C5DF800E3 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=GOuAviNY Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VL5qlY022460; Thu, 1 Aug 2024 01:17:47 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=qQjNtAemt4pA7A8UNah9Opd7 M7sEIf6lFHISXF6+fqg=; b=GOuAviNYFLJzdTqviPTXFzoko/tufuerAw3CLXpv We+6VTN1voX0/zLZmF/LGdM8gGIfMcvTz087eBg/G+e/SjHB7XVf+ZfQm5r8fO88 vImYiMBZlsKSkjn3V5Q4sjRurxUYdN9HkJioQETVmBGLz5LNNnlylfR5O1wuEFWt JaDflwZPdVvTbGqYjfRJCvYbker4TIoWmQDOfVCChGnBB/Wgz9/KUqmRcQG1sL3i i/8sQIWPrLHE+WkXEMlR2Q5z8xI1yhRL1uX7QFn9FDT+jwaJdyBOpHoDeZUTMEk0 x+NiQK7fF8Z+43anDrQ3Cv5v6bW9cnDmhnbItmWosrk78A== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qkv0t5cu-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:46 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HjgF020147 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:45 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 15.2.1544.9; Wed, 31 Jul 2024 18:17:45 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 15/34] ASoC: qcom: qdsp6: Introduce USB AFE port to q6dsp Date: Wed, 31 Jul 2024 18:17:11 -0700 Message-ID: <20240801011730.4797-16-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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-ORIG-GUID: QjdsloEYS0FQ2qsc59tHy14d4NA7o_XE X-Proofpoint-GUID: QjdsloEYS0FQ2qsc59tHy14d4NA7o_XE 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 clxscore=1015 adultscore=0 priorityscore=1501 malwarescore=0 mlxscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 suspectscore=0 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: AT3CKPP7TF6EPFYXTUGWJTOJSVRFEPXH X-Message-ID-Hash: AT3CKPP7TF6EPFYXTUGWJTOJSVRFEPXH 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: The QC ADSP is able to support USB playback endpoints, so that the main application processor can be placed into lower CPU power modes. This adds the required AFE port configurations and port start command to start an audio session. Specifically, the QC ADSP can support all potential endpoints that are exposed by the audio data interface. This includes, feedback endpoints (both implicit and explicit) as well as the isochronous (data) endpoints. The size of audio samples sent per USB frame (microframe) will be adjusted based on information received on the feedback endpoint. Some pre-requisites are needed before issuing the AFE port start command, such as setting the USB AFE dev_token. This carries information about the available USB SND cards and PCM devices that have been discovered on the USB bus. The dev_token field is used by the audio DSP to notify the USB offload driver of which card and PCM index to enable playback on. Signed-off-by: Wesley Cheng --- sound/soc/qcom/qdsp6/q6afe-dai.c | 60 +++++++ sound/soc/qcom/qdsp6/q6afe.c | 191 ++++++++++++++++++++++- sound/soc/qcom/qdsp6/q6afe.h | 36 ++++- sound/soc/qcom/qdsp6/q6dsp-lpass-ports.c | 23 +++ sound/soc/qcom/qdsp6/q6dsp-lpass-ports.h | 1 + sound/soc/qcom/qdsp6/q6routing.c | 9 ++ 6 files changed, 318 insertions(+), 2 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6afe-dai.c b/sound/soc/qcom/qdsp6/q6afe-dai.c index a9c4f896a7df..80b22d1a24d0 100644 --- a/sound/soc/qcom/qdsp6/q6afe-dai.c +++ b/sound/soc/qcom/qdsp6/q6afe-dai.c @@ -92,6 +92,39 @@ static int q6hdmi_hw_params(struct snd_pcm_substream *substream, return 0; } +static int q6afe_usb_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct q6afe_dai_data *dai_data = dev_get_drvdata(dai->dev); + int channels = params_channels(params); + int rate = params_rate(params); + struct q6afe_usb_cfg *usb = &dai_data->port_config[dai->id].usb_audio; + + usb->sample_rate = rate; + usb->num_channels = channels; + + switch (params_format(params)) { + case SNDRV_PCM_FORMAT_U16_LE: + case SNDRV_PCM_FORMAT_S16_LE: + usb->bit_width = 16; + break; + case SNDRV_PCM_FORMAT_S24_LE: + case SNDRV_PCM_FORMAT_S24_3LE: + usb->bit_width = 24; + break; + case SNDRV_PCM_FORMAT_S32_LE: + usb->bit_width = 32; + break; + default: + dev_err(dai->dev, "%s: invalid format %d\n", + __func__, params_format(params)); + return -EINVAL; + } + + return 0; +} + static int q6i2s_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, struct snd_soc_dai *dai) @@ -392,6 +425,10 @@ static int q6afe_dai_prepare(struct snd_pcm_substream *substream, q6afe_cdc_dma_port_prepare(dai_data->port[dai->id], &dai_data->port_config[dai->id].dma_cfg); break; + case USB_RX: + q6afe_usb_port_prepare(dai_data->port[dai->id], + &dai_data->port_config[dai->id].usb_audio); + break; default: return -EINVAL; } @@ -618,6 +655,9 @@ static const struct snd_soc_dapm_route q6afe_dapm_routes[] = { {"TX_CODEC_DMA_TX_5", NULL, "TX_CODEC_DMA_TX_5 Capture"}, {"RX_CODEC_DMA_RX_6 Playback", NULL, "RX_CODEC_DMA_RX_6"}, {"RX_CODEC_DMA_RX_7 Playback", NULL, "RX_CODEC_DMA_RX_7"}, + + /* USB playback AFE port receives data for playback, hence use the RX port */ + {"USB Playback", NULL, "USB_RX"}, }; static int msm_dai_q6_dai_probe(struct snd_soc_dai *dai) @@ -645,6 +685,23 @@ static int msm_dai_q6_dai_remove(struct snd_soc_dai *dai) return 0; } +static const struct snd_soc_dai_ops q6afe_usb_ops = { + .probe = msm_dai_q6_dai_probe, + .prepare = q6afe_dai_prepare, + .hw_params = q6afe_usb_hw_params, + /* + * Shutdown callback required to stop the USB AFE port, which is enabled + * by the prepare() stage. This stops the audio traffic on the USB AFE + * port on the Q6DSP. + */ + .shutdown = q6afe_dai_shutdown, + /* + * Startup callback not needed, as AFE port start command passes the PCM + * parameters within the AFE command, which is provided by the PCM core + * during the prepare() stage. + */ +}; + static const struct snd_soc_dai_ops q6hdmi_ops = { .probe = msm_dai_q6_dai_probe, .remove = msm_dai_q6_dai_remove, @@ -943,6 +1000,8 @@ static const struct snd_soc_dapm_widget q6afe_dai_widgets[] = { 0, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_AIF_IN("RX_CODEC_DMA_RX_7", "NULL", 0, SND_SOC_NOPM, 0, 0), + + SND_SOC_DAPM_AIF_IN("USB_RX", NULL, 0, SND_SOC_NOPM, 0, 0), }; static const struct snd_soc_component_driver q6afe_dai_component = { @@ -1057,6 +1116,7 @@ static int q6afe_dai_dev_probe(struct platform_device *pdev) cfg.q6i2s_ops = &q6i2s_ops; cfg.q6tdm_ops = &q6tdm_ops; cfg.q6dma_ops = &q6dma_ops; + cfg.q6usb_ops = &q6afe_usb_ops; dais = q6dsp_audio_ports_set_config(dev, &cfg, &num_dais); return devm_snd_soc_register_component(dev, &q6afe_dai_component, dais, num_dais); diff --git a/sound/soc/qcom/qdsp6/q6afe.c b/sound/soc/qcom/qdsp6/q6afe.c index ef7557be5d66..948007955934 100644 --- a/sound/soc/qcom/qdsp6/q6afe.c +++ b/sound/soc/qcom/qdsp6/q6afe.c @@ -35,6 +35,8 @@ #define AFE_MODULE_TDM 0x0001028A #define AFE_PARAM_ID_CDC_SLIMBUS_SLAVE_CFG 0x00010235 +#define AFE_PARAM_ID_USB_AUDIO_DEV_PARAMS 0x000102A5 +#define AFE_PARAM_ID_USB_AUDIO_DEV_LPCM_FMT 0x000102AA #define AFE_PARAM_ID_LPAIF_CLK_CONFIG 0x00010238 #define AFE_PARAM_ID_INT_DIGITAL_CDC_CLK_CONFIG 0x00010239 @@ -44,6 +46,7 @@ #define AFE_PARAM_ID_TDM_CONFIG 0x0001029D #define AFE_PARAM_ID_PORT_SLOT_MAPPING_CONFIG 0x00010297 #define AFE_PARAM_ID_CODEC_DMA_CONFIG 0x000102B8 +#define AFE_PARAM_ID_USB_AUDIO_CONFIG 0x000102A4 #define AFE_CMD_REMOTE_LPASS_CORE_HW_VOTE_REQUEST 0x000100f4 #define AFE_CMD_RSP_REMOTE_LPASS_CORE_HW_VOTE_REQUEST 0x000100f5 #define AFE_CMD_REMOTE_LPASS_CORE_HW_DEVOTE_REQUEST 0x000100f6 @@ -72,12 +75,16 @@ #define AFE_PORT_CONFIG_I2S_WS_SRC_INTERNAL 0x1 #define AFE_LINEAR_PCM_DATA 0x0 +#define AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG 0x1 /* Port IDs */ #define AFE_API_VERSION_HDMI_CONFIG 0x1 #define AFE_PORT_ID_MULTICHAN_HDMI_RX 0x100E #define AFE_PORT_ID_HDMI_OVER_DP_RX 0x6020 +/* USB AFE port */ +#define AFE_PORT_ID_USB_RX 0x7000 + #define AFE_API_VERSION_SLIMBUS_CONFIG 0x1 /* Clock set API version */ #define AFE_API_VERSION_CLOCK_SET 1 @@ -513,12 +520,96 @@ struct afe_param_id_cdc_dma_cfg { u16 active_channels_mask; } __packed; +struct afe_param_id_usb_cfg { +/* Minor version used for tracking USB audio device configuration. + * Supported values: AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG + */ + u32 cfg_minor_version; +/* Sampling rate of the port. + * Supported values: + * - AFE_PORT_SAMPLE_RATE_8K + * - AFE_PORT_SAMPLE_RATE_11025 + * - AFE_PORT_SAMPLE_RATE_12K + * - AFE_PORT_SAMPLE_RATE_16K + * - AFE_PORT_SAMPLE_RATE_22050 + * - AFE_PORT_SAMPLE_RATE_24K + * - AFE_PORT_SAMPLE_RATE_32K + * - AFE_PORT_SAMPLE_RATE_44P1K + * - AFE_PORT_SAMPLE_RATE_48K + * - AFE_PORT_SAMPLE_RATE_96K + * - AFE_PORT_SAMPLE_RATE_192K + */ + u32 sample_rate; +/* Bit width of the sample. + * Supported values: 16, 24 + */ + u16 bit_width; +/* Number of channels. + * Supported values: 1 and 2 + */ + u16 num_channels; +/* Data format supported by the USB. The supported value is + * 0 (#AFE_USB_AUDIO_DATA_FORMAT_LINEAR_PCM). + */ + u16 data_format; +/* this field must be 0 */ + u16 reserved; +/* device token of actual end USB audio device */ + u32 dev_token; +/* endianness of this interface */ + u32 endian; +/* service interval */ + u32 service_interval; +} __packed; + +/** + * struct afe_param_id_usb_audio_dev_params + * @cfg_minor_version: Minor version used for tracking USB audio device + * configuration. + * Supported values: + * AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG + * @dev_token: device token of actual end USB audio device + **/ +struct afe_param_id_usb_audio_dev_params { + u32 cfg_minor_version; + u32 dev_token; +} __packed; + +/** + * struct afe_param_id_usb_audio_dev_lpcm_fmt + * @cfg_minor_version: Minor version used for tracking USB audio device + * configuration. + * Supported values: + * AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG + * @endian: endianness of this interface + **/ +struct afe_param_id_usb_audio_dev_lpcm_fmt { + u32 cfg_minor_version; + u32 endian; +} __packed; + +#define AFE_PARAM_ID_USB_AUDIO_SVC_INTERVAL 0x000102B7 + +/** + * struct afe_param_id_usb_audio_svc_interval + * @cfg_minor_version: Minor version used for tracking USB audio device + * configuration. + * Supported values: + * AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG + * @svc_interval: service interval + **/ +struct afe_param_id_usb_audio_svc_interval { + u32 cfg_minor_version; + u32 svc_interval; +} __packed; + union afe_port_config { struct afe_param_id_hdmi_multi_chan_audio_cfg hdmi_multi_ch; struct afe_param_id_slimbus_cfg slim_cfg; struct afe_param_id_i2s_cfg i2s_cfg; struct afe_param_id_tdm_cfg tdm_cfg; struct afe_param_id_cdc_dma_cfg dma_cfg; + struct afe_param_id_usb_cfg usb_cfg; } __packed; @@ -833,6 +924,7 @@ static struct afe_port_map port_maps[AFE_PORT_MAX] = { RX_CODEC_DMA_RX_6, 1, 1}, [RX_CODEC_DMA_RX_7] = { AFE_PORT_ID_RX_CODEC_DMA_RX_7, RX_CODEC_DMA_RX_7, 1, 1}, + [USB_RX] = { AFE_PORT_ID_USB_RX, USB_RX, 1, 1}, }; static void q6afe_port_free(struct kref *ref) @@ -1290,6 +1382,100 @@ void q6afe_tdm_port_prepare(struct q6afe_port *port, } EXPORT_SYMBOL_GPL(q6afe_tdm_port_prepare); +/** + * afe_port_send_usb_dev_param() - Send USB dev token + * + * @port: Instance of afe port + * @cardidx: USB SND card index to reference + * @pcmidx: USB SND PCM device index to reference + * + * The USB dev token carries information about which USB SND card instance and + * PCM device to execute the offload on. This information is carried through + * to the stream enable QMI request, which is handled by the offload class + * driver. The information is parsed to determine which USB device to query + * the required resources for. + */ +int afe_port_send_usb_dev_param(struct q6afe_port *port, int cardidx, int pcmidx) +{ + struct afe_param_id_usb_audio_dev_params usb_dev; + int ret; + + memset(&usb_dev, 0, sizeof(usb_dev)); + + usb_dev.cfg_minor_version = AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG; + usb_dev.dev_token = (cardidx << 16) | (pcmidx << 8); + ret = q6afe_port_set_param_v2(port, &usb_dev, + AFE_PARAM_ID_USB_AUDIO_DEV_PARAMS, + AFE_MODULE_AUDIO_DEV_INTERFACE, sizeof(usb_dev)); + if (ret) + dev_err(port->afe->dev, "%s: AFE device param cmd failed %d\n", + __func__, ret); + + return ret; +} +EXPORT_SYMBOL_GPL(afe_port_send_usb_dev_param); + +static int afe_port_send_usb_params(struct q6afe_port *port, struct q6afe_usb_cfg *cfg) +{ + union afe_port_config *pcfg = &port->port_cfg; + struct afe_param_id_usb_audio_dev_lpcm_fmt lpcm_fmt; + struct afe_param_id_usb_audio_svc_interval svc_int; + int ret; + + if (!pcfg) { + dev_err(port->afe->dev, "%s: Error, no configuration data\n", __func__); + ret = -EINVAL; + goto exit; + } + + memset(&lpcm_fmt, 0, sizeof(lpcm_fmt)); + memset(&svc_int, 0, sizeof(svc_int)); + + lpcm_fmt.cfg_minor_version = AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG; + lpcm_fmt.endian = pcfg->usb_cfg.endian; + ret = q6afe_port_set_param_v2(port, &lpcm_fmt, + AFE_PARAM_ID_USB_AUDIO_DEV_LPCM_FMT, + AFE_MODULE_AUDIO_DEV_INTERFACE, sizeof(lpcm_fmt)); + if (ret) { + dev_err(port->afe->dev, "%s: AFE device param cmd LPCM_FMT failed %d\n", + __func__, ret); + goto exit; + } + + svc_int.cfg_minor_version = AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG; + svc_int.svc_interval = pcfg->usb_cfg.service_interval; + ret = q6afe_port_set_param_v2(port, &svc_int, + AFE_PARAM_ID_USB_AUDIO_SVC_INTERVAL, + AFE_MODULE_AUDIO_DEV_INTERFACE, sizeof(svc_int)); + if (ret) + dev_err(port->afe->dev, "%s: AFE device param cmd svc_interval failed %d\n", + __func__, ret); + +exit: + return ret; +} + +/** + * q6afe_usb_port_prepare() - Prepare usb afe port. + * + * @port: Instance of afe port + * @cfg: USB configuration for the afe port + * + */ +void q6afe_usb_port_prepare(struct q6afe_port *port, + struct q6afe_usb_cfg *cfg) +{ + union afe_port_config *pcfg = &port->port_cfg; + + pcfg->usb_cfg.cfg_minor_version = AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG; + pcfg->usb_cfg.sample_rate = cfg->sample_rate; + pcfg->usb_cfg.num_channels = cfg->num_channels; + pcfg->usb_cfg.bit_width = cfg->bit_width; + + afe_port_send_usb_params(port, cfg); +} +EXPORT_SYMBOL_GPL(q6afe_usb_port_prepare); + /** * q6afe_hdmi_port_prepare() - Prepare hdmi afe port. * @@ -1612,7 +1798,10 @@ struct q6afe_port *q6afe_port_get_from_id(struct device *dev, int id) break; case AFE_PORT_ID_WSA_CODEC_DMA_RX_0 ... AFE_PORT_ID_RX_CODEC_DMA_RX_7: cfg_type = AFE_PARAM_ID_CODEC_DMA_CONFIG; - break; + break; + case AFE_PORT_ID_USB_RX: + cfg_type = AFE_PARAM_ID_USB_AUDIO_CONFIG; + break; default: dev_err(dev, "Invalid port id 0x%x\n", port_id); return ERR_PTR(-EINVAL); diff --git a/sound/soc/qcom/qdsp6/q6afe.h b/sound/soc/qcom/qdsp6/q6afe.h index 65d0676075e1..04c70f904b86 100644 --- a/sound/soc/qcom/qdsp6/q6afe.h +++ b/sound/soc/qcom/qdsp6/q6afe.h @@ -3,7 +3,7 @@ #ifndef __Q6AFE_H__ #define __Q6AFE_H__ -#define AFE_PORT_MAX 129 +#define AFE_PORT_MAX 137 #define MSM_AFE_PORT_TYPE_RX 0 #define MSM_AFE_PORT_TYPE_TX 1 @@ -203,6 +203,36 @@ struct q6afe_cdc_dma_cfg { u16 active_channels_mask; }; +/** + * struct q6afe_usb_cfg + * @cfg_minor_version: Minor version used for tracking USB audio device + * configuration. + * Supported values: + * AFE_API_MINOR_VERSION_USB_AUDIO_CONFIG + * @sample_rate: Sampling rate of the port + * Supported values: + * AFE_PORT_SAMPLE_RATE_8K + * AFE_PORT_SAMPLE_RATE_11025 + * AFE_PORT_SAMPLE_RATE_12K + * AFE_PORT_SAMPLE_RATE_16K + * AFE_PORT_SAMPLE_RATE_22050 + * AFE_PORT_SAMPLE_RATE_24K + * AFE_PORT_SAMPLE_RATE_32K + * AFE_PORT_SAMPLE_RATE_44P1K + * AFE_PORT_SAMPLE_RATE_48K + * AFE_PORT_SAMPLE_RATE_96K + * AFE_PORT_SAMPLE_RATE_192K + * @bit_width: Bit width of the sample. + * Supported values: 16, 24 + * @num_channels: Number of channels + * Supported values: 1, 2 + **/ +struct q6afe_usb_cfg { + u32 cfg_minor_version; + u32 sample_rate; + u16 bit_width; + u16 num_channels; +}; struct q6afe_port_config { struct q6afe_hdmi_cfg hdmi; @@ -210,6 +240,7 @@ struct q6afe_port_config { struct q6afe_i2s_cfg i2s_cfg; struct q6afe_tdm_cfg tdm; struct q6afe_cdc_dma_cfg dma_cfg; + struct q6afe_usb_cfg usb_audio; }; struct q6afe_port; @@ -219,6 +250,8 @@ int q6afe_port_start(struct q6afe_port *port); int q6afe_port_stop(struct q6afe_port *port); void q6afe_port_put(struct q6afe_port *port); int q6afe_get_port_id(int index); +void q6afe_usb_port_prepare(struct q6afe_port *port, + struct q6afe_usb_cfg *cfg); void q6afe_hdmi_port_prepare(struct q6afe_port *port, struct q6afe_hdmi_cfg *cfg); void q6afe_slim_port_prepare(struct q6afe_port *port, @@ -228,6 +261,7 @@ void q6afe_tdm_port_prepare(struct q6afe_port *port, struct q6afe_tdm_cfg *cfg); void q6afe_cdc_dma_port_prepare(struct q6afe_port *port, struct q6afe_cdc_dma_cfg *cfg); +int afe_port_send_usb_dev_param(struct q6afe_port *port, int cardidx, int pcmidx); int q6afe_port_set_sysclk(struct q6afe_port *port, int clk_id, int clk_src, int clk_root, unsigned int freq, int dir); diff --git a/sound/soc/qcom/qdsp6/q6dsp-lpass-ports.c b/sound/soc/qcom/qdsp6/q6dsp-lpass-ports.c index 4919001de08b..4a96b11f7fd1 100644 --- a/sound/soc/qcom/qdsp6/q6dsp-lpass-ports.c +++ b/sound/soc/qcom/qdsp6/q6dsp-lpass-ports.c @@ -97,6 +97,26 @@ } static struct snd_soc_dai_driver q6dsp_audio_fe_dais[] = { + { + .playback = { + .stream_name = "USB Playback", + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | + SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | + SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE | + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE | + SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, + .channels_min = 1, + .channels_max = 2, + .rate_min = 8000, + .rate_max = 192000, + }, + .id = USB_RX, + .name = "USB_RX", + }, { .playback = { .stream_name = "HDMI Playback", @@ -624,6 +644,9 @@ struct snd_soc_dai_driver *q6dsp_audio_ports_set_config(struct device *dev, case WSA_CODEC_DMA_RX_0 ... RX_CODEC_DMA_RX_7: q6dsp_audio_fe_dais[i].ops = cfg->q6dma_ops; break; + case USB_RX: + q6dsp_audio_fe_dais[i].ops = cfg->q6usb_ops; + break; default: break; } diff --git a/sound/soc/qcom/qdsp6/q6dsp-lpass-ports.h b/sound/soc/qcom/qdsp6/q6dsp-lpass-ports.h index 7f052c8a1257..d8dde6dd0aca 100644 --- a/sound/soc/qcom/qdsp6/q6dsp-lpass-ports.h +++ b/sound/soc/qcom/qdsp6/q6dsp-lpass-ports.h @@ -11,6 +11,7 @@ struct q6dsp_audio_port_dai_driver_config { const struct snd_soc_dai_ops *q6i2s_ops; const struct snd_soc_dai_ops *q6tdm_ops; const struct snd_soc_dai_ops *q6dma_ops; + const struct snd_soc_dai_ops *q6usb_ops; }; struct snd_soc_dai_driver *q6dsp_audio_ports_set_config(struct device *dev, diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c index 81fde0681f95..45811f0f0d44 100644 --- a/sound/soc/qcom/qdsp6/q6routing.c +++ b/sound/soc/qcom/qdsp6/q6routing.c @@ -515,6 +515,9 @@ static int msm_routing_put_audio_mixer(struct snd_kcontrol *kcontrol, return 1; } +static const struct snd_kcontrol_new usb_mixer_controls[] = { + Q6ROUTING_RX_MIXERS(USB_RX) }; + static const struct snd_kcontrol_new hdmi_mixer_controls[] = { Q6ROUTING_RX_MIXERS(HDMI_RX) }; @@ -950,6 +953,10 @@ static const struct snd_soc_dapm_widget msm_qdsp6_widgets[] = { SND_SOC_DAPM_MIXER("MultiMedia8 Mixer", SND_SOC_NOPM, 0, 0, mmul8_mixer_controls, ARRAY_SIZE(mmul8_mixer_controls)), + SND_SOC_DAPM_MIXER("USB Mixer", SND_SOC_NOPM, 0, 0, + usb_mixer_controls, + ARRAY_SIZE(usb_mixer_controls)), + }; static const struct snd_soc_dapm_route intercon[] = { @@ -1043,6 +1050,8 @@ static const struct snd_soc_dapm_route intercon[] = { {"MM_UL6", NULL, "MultiMedia6 Mixer"}, {"MM_UL7", NULL, "MultiMedia7 Mixer"}, {"MM_UL8", NULL, "MultiMedia8 Mixer"}, + + Q6ROUTING_RX_DAPM_ROUTE("USB Mixer", "USB_RX"), }; static int routing_hw_params(struct snd_soc_component *component, From patchwork Thu Aug 1 01:17:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816324 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 219F6C3DA64 for ; Thu, 1 Aug 2024 01:25:45 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id C14483095; Thu, 1 Aug 2024 03:24:55 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C14483095 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475505; bh=5l1ZDxiiOCJBz70DKB8YoEv4oAwewH8W9SdYrKkgC5E=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=owGrr8YnG3ZUsMUsj/Nt0Gtm30+W4wPubIq2Lktt3FU66OYcnEVPAeTEJWoxdkS8r 72IifY/OYFXKJsQvNq8oNBo99qfLdj35nLPWGMaqtGaKau6dz3txBlCb94KqeiAhQP lpy9l2FSd46j5txBsd8IShthSuh5EnA/vF7Q5zms= Received: by alsa1.perex.cz (Postfix, from userid 50401) id E0473F808F5; Thu, 1 Aug 2024 03:21:24 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 65898F808C3; Thu, 1 Aug 2024 03:21:24 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id CAD8EF80579; Thu, 1 Aug 2024 03:18:18 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 2F0C4F805AC for ; Thu, 1 Aug 2024 03:17:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 2F0C4F805AC Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=kzpLHBE2 Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VJVFjG012787; Thu, 1 Aug 2024 01:17:47 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=Okp2NIuxOum+UIJx68gt8HGP T3ztWG2atEl9RFxfZvI=; b=kzpLHBE242OwHCCaEtvTS+OR0WTg9MTasFcdxqVR ku4CJLyaPZkthK8YgdPwG6s9/1usYYyLW/AXc++3hEnBqjJnvsuQ+pF7hxSODd0j ORPT4zp57ebvuRPaKKhXjZQxptB9d6l9GGTBtZAgT9Vfv4ugnU+4guB6/l71aLWI mSVTMYfBD6V7uqMJS0+Q4Yd2B/NlDPy0gfKWHsD/q0ZMCHsX2IyHENVgjvaB+zmK whOfChs19z1HcieJmFNANWkQVDbKEzr4f8iIEJ1k12H+G0M1ym+w8STgOi1fJkY5 JIZuhJKvXpDk89qOM30LvDDK5sO9VDy9/7oV4k7+Zt47aA== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qugagqwc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:47 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HkPa012384 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:46 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; Wed, 31 Jul 2024 18:17:45 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 16/34] ASoC: qcom: qdsp6: q6afe: Increase APR timeout Date: Wed, 31 Jul 2024 18:17:12 -0700 Message-ID: <20240801011730.4797-17-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: buiEd9BmAqEj62xNKX9mxoQaRTz43ayh X-Proofpoint-ORIG-GUID: buiEd9BmAqEj62xNKX9mxoQaRTz43ayh 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 lowpriorityscore=0 priorityscore=1501 bulkscore=0 suspectscore=0 impostorscore=0 mlxscore=0 spamscore=0 malwarescore=0 phishscore=0 mlxlogscore=974 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: CBSP5IZQHGFGGPV3QV5ZTDS6VTWQDMFT X-Message-ID-Hash: CBSP5IZQHGFGGPV3QV5ZTDS6VTWQDMFT 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: For USB offloading situations, the AFE port start command will result in a QMI handshake between the Q6DSP and the main processor. Depending on if the USB bus is suspended, this routine would require more time to complete, as resuming the USB bus has some overhead associated with it. Increase the timeout to 3s to allow for sufficient time for the USB QMI stream enable handshake to complete. Reviewed-by: Srinivas Kandagatla Signed-off-by: Wesley Cheng --- sound/soc/qcom/qdsp6/q6afe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/qcom/qdsp6/q6afe.c b/sound/soc/qcom/qdsp6/q6afe.c index 948007955934..452d7e8b9b30 100644 --- a/sound/soc/qcom/qdsp6/q6afe.c +++ b/sound/soc/qcom/qdsp6/q6afe.c @@ -366,7 +366,7 @@ #define AFE_API_VERSION_SLOT_MAPPING_CONFIG 1 #define AFE_API_VERSION_CODEC_DMA_CONFIG 1 -#define TIMEOUT_MS 1000 +#define TIMEOUT_MS 3000 #define AFE_CMD_RESP_AVAIL 0 #define AFE_CMD_RESP_NONE 1 #define AFE_CLK_TOKEN 1024 From patchwork Thu Aug 1 01:17:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816331 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0BB12C3DA64 for ; Thu, 1 Aug 2024 01:21:31 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id C44B82E58; Thu, 1 Aug 2024 03:21:12 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C44B82E58 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475282; bh=gEDDXK3PXzhc4fN1fZ7VFhKWmzemEwC+YXQeYqrXy5U=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=iRvzPKgVGasyQw0q5XC/8/pfSd4KUYs+Wmsj4kr/gMo8zdybEKytSnI8D6sismcDM oGlsOfY0Fqqo3pKGt3ABu69JWHgzFIKSdO4nxafHy+5VR/DPR2Nv6WV/J8nhSo22mw 8zYs+SaI/z5bAdKaTba+4OcwHOuZ0mUJ9CiuZxpU= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 81F67F805B1; Thu, 1 Aug 2024 03:20:51 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id ADF21F8019B; Thu, 1 Aug 2024 03:20:50 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 83CDBF805E9; Thu, 1 Aug 2024 03:18:06 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 7169BF80448 for ; Thu, 1 Aug 2024 03:17:48 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 7169BF80448 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=H5QsZZrz Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VIDrc1019384; Thu, 1 Aug 2024 01:17:47 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=vc9WrqxkjmslCIq8d2BnMy3e cva28vFviequKzNiPuY=; b=H5QsZZrzdZX1/fzbyPUnWEB01dwYV5HkRCO9c1v0 oTN797Erkt8yy/AJmX3zgk9i0crkcxUZYB+3nA9S9lONIT5smJ3szadJOZ8+ggDL slynCZlPG0pGuDFG0QGgRFtOtuGWg75M05AvjQn3gs4XiazrzOHGwv1WEriakAD1 gXOBzdoQjaBJ+tH7+77J+SzIYF8uaUYwBmYcyp4j1l1GNxKErsRxUWqVDCpEwl12 Ajp9rQ8M7SVuLDAVgGQHP2jvnCIcA5Up1Xu1ZBwDMjGRNAYYJtn9w1WYXJBQ+DBN tLqsJkhiyaoVfZNTaLRz0DJo1u6rcFe3F9JaAk6Qru3zsA== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40ms43d1sw-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:47 +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 4711Hk9I026895 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:46 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; Wed, 31 Jul 2024 18:17:45 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 17/34] ASoC: qcom: qdsp6: Add USB backend ASoC driver for Q6 Date: Wed, 31 Jul 2024 18:17:13 -0700 Message-ID: <20240801011730.4797-18-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: 6K9Yxlh0a7KvfOTSZKrTi4lI_EEkMdBl X-Proofpoint-ORIG-GUID: 6K9Yxlh0a7KvfOTSZKrTi4lI_EEkMdBl 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 priorityscore=1501 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010004 Message-ID-Hash: 25M5LOOZG74USZPP2IYHJFH726MHQXHF X-Message-ID-Hash: 25M5LOOZG74USZPP2IYHJFH726MHQXHF 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: Create a USB BE component that will register a new USB port to the ASoC USB framework. This will handle determination on if the requested audio profile is supported by the USB device currently selected. Signed-off-by: Wesley Cheng --- include/sound/q6usboffload.h | 20 +++ sound/soc/qcom/Kconfig | 10 ++ sound/soc/qcom/qdsp6/Makefile | 1 + sound/soc/qcom/qdsp6/q6usb.c | 238 ++++++++++++++++++++++++++++++++++ 4 files changed, 269 insertions(+) create mode 100644 include/sound/q6usboffload.h create mode 100644 sound/soc/qcom/qdsp6/q6usb.c diff --git a/include/sound/q6usboffload.h b/include/sound/q6usboffload.h new file mode 100644 index 000000000000..fdc1f5c53a3b --- /dev/null +++ b/include/sound/q6usboffload.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * linux/sound/q6usboffload.h -- QDSP6 USB offload + * + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +/** + * struct q6usb_offload + * @dev - dev handle to usb be + * @sid - streamID for iommu + * @intr_num - usb interrupter number + * @domain - allocated iommu domain + **/ +struct q6usb_offload { + struct device *dev; + long long sid; + u16 intr_num; + struct iommu_domain *domain; +}; diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig index 762491d6f2f2..a1beafe2b1dd 100644 --- a/sound/soc/qcom/Kconfig +++ b/sound/soc/qcom/Kconfig @@ -118,6 +118,16 @@ config SND_SOC_QDSP6_PRM tristate select SND_SOC_QDSP6_PRM_LPASS_CLOCKS +config SND_SOC_QDSP6_USB + tristate "SoC ALSA USB offloading backing for QDSP6" + depends on SND_SOC_USB + help + Adds support for USB offloading for QDSP6 ASoC + based platform sound cards. This will enable the + Q6USB DPCM backend DAI link, which will interact + with the SoC USB framework to initialize a session + with active USB SND devices. + config SND_SOC_QDSP6 tristate "SoC ALSA audio driver for QDSP6" depends on QCOM_APR diff --git a/sound/soc/qcom/qdsp6/Makefile b/sound/soc/qcom/qdsp6/Makefile index 26b7c55c9c11..67267304e7e9 100644 --- a/sound/soc/qcom/qdsp6/Makefile +++ b/sound/soc/qcom/qdsp6/Makefile @@ -17,3 +17,4 @@ obj-$(CONFIG_SND_SOC_QDSP6_APM_DAI) += q6apm-dai.o obj-$(CONFIG_SND_SOC_QDSP6_APM_LPASS_DAI) += q6apm-lpass-dais.o obj-$(CONFIG_SND_SOC_QDSP6_PRM) += q6prm.o obj-$(CONFIG_SND_SOC_QDSP6_PRM_LPASS_CLOCKS) += q6prm-clocks.o +obj-$(CONFIG_SND_SOC_QDSP6_USB) += q6usb.o diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c new file mode 100644 index 000000000000..9a46532e8c16 --- /dev/null +++ b/sound/soc/qcom/qdsp6/q6usb.c @@ -0,0 +1,238 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "q6afe.h" +#include "q6dsp-lpass-ports.h" + +#define Q6_USB_SID_MASK 0xF + +struct q6usb_port_data { + struct q6afe_usb_cfg usb_cfg; + struct snd_soc_usb *usb; + struct q6usb_offload priv; + struct mutex mutex; + struct list_head devices; +}; + +static const struct snd_soc_dapm_widget q6usb_dai_widgets[] = { + SND_SOC_DAPM_HP("USB_RX_BE", NULL), +}; + +static const struct snd_soc_dapm_route q6usb_dapm_routes[] = { + {"USB Playback", NULL, "USB_RX_BE"}, +}; + +static int q6usb_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct q6usb_port_data *data = dev_get_drvdata(dai->dev); + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct q6afe_port *q6usb_afe; + struct snd_soc_usb_device *sdev; + int ret; + + /* No active chip index */ + if (list_empty(&data->devices)) + return -EINVAL; + + mutex_lock(&data->mutex); + sdev = list_last_entry(&data->devices, struct snd_soc_usb_device, list); + + q6usb_afe = q6afe_port_get_from_id(cpu_dai->dev, USB_RX); + if (IS_ERR(q6usb_afe)) + goto out; + + /* Notify audio DSP about the devices being offloaded */ + ret = afe_port_send_usb_dev_param(q6usb_afe, sdev->card_idx, + sdev->pcm_idx); + +out: + mutex_unlock(&data->mutex); + + return ret; +} + +static const struct snd_soc_dai_ops q6usb_ops = { + .hw_params = q6usb_hw_params, +}; + +static struct snd_soc_dai_driver q6usb_be_dais[] = { + { + .playback = { + .stream_name = "USB BE RX", + .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | + SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | + SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | + SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | + SNDRV_PCM_RATE_192000, + .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | + SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE | + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE | + SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE, + .channels_min = 1, + .channels_max = 2, + .rate_max = 192000, + .rate_min = 8000, + }, + .id = USB_RX, + .name = "USB_RX_BE", + .ops = &q6usb_ops, + }, +}; + +static int q6usb_audio_ports_of_xlate_dai_name(struct snd_soc_component *component, + const struct of_phandle_args *args, + const char **dai_name) +{ + int id = args->args[0]; + int ret = -EINVAL; + int i; + + for (i = 0; i < ARRAY_SIZE(q6usb_be_dais); i++) { + if (q6usb_be_dais[i].id == id) { + *dai_name = q6usb_be_dais[i].name; + ret = 0; + break; + } + } + + return ret; +} + +static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb, + struct snd_soc_usb_device *sdev, bool connected) +{ + struct q6usb_port_data *data; + + if (!usb->component) + return -ENODEV; + + data = dev_get_drvdata(usb->component->dev); + + mutex_lock(&data->mutex); + if (connected) { + /* Selects the latest USB headset plugged in for offloading */ + list_add_tail(&sdev->list, &data->devices); + } else { + list_del(&sdev->list); + } + mutex_unlock(&data->mutex); + + return 0; +} + +static int q6usb_component_probe(struct snd_soc_component *component) +{ + struct q6usb_port_data *data = dev_get_drvdata(component->dev); + struct snd_soc_usb *usb; + + usb = snd_soc_usb_allocate_port(component, 1, &data->priv); + if (IS_ERR(usb)) + return -ENOMEM; + + usb->connection_status_cb = q6usb_alsa_connection_cb; + + snd_soc_usb_add_port(usb); + data->usb = usb; + + return 0; +} + +static void q6usb_component_remove(struct snd_soc_component *component) +{ + struct q6usb_port_data *data = dev_get_drvdata(component->dev); + + snd_soc_usb_remove_port(data->usb); + snd_soc_usb_free_port(data->usb); +} + +static const struct snd_soc_component_driver q6usb_dai_component = { + .probe = q6usb_component_probe, + .remove = q6usb_component_remove, + .name = "q6usb-dai-component", + .dapm_widgets = q6usb_dai_widgets, + .num_dapm_widgets = ARRAY_SIZE(q6usb_dai_widgets), + .dapm_routes = q6usb_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(q6usb_dapm_routes), + .of_xlate_dai_name = q6usb_audio_ports_of_xlate_dai_name, +}; + +static int q6usb_dai_dev_probe(struct platform_device *pdev) +{ + struct device_node *node = pdev->dev.of_node; + struct q6usb_port_data *data; + struct device *dev = &pdev->dev; + struct of_phandle_args args; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + ret = of_property_read_u16(node, "qcom,usb-audio-intr-idx", + &data->priv.intr_num); + if (ret) { + dev_err(&pdev->dev, "failed to read intr idx.\n"); + return ret; + } + + ret = of_parse_phandle_with_fixed_args(node, "iommus", 1, 0, &args); + if (ret < 0) + data->priv.sid = -1; + else + data->priv.sid = args.args[0] & Q6_USB_SID_MASK; + + data->priv.domain = iommu_get_domain_for_dev(&pdev->dev); + + data->priv.dev = dev; + INIT_LIST_HEAD(&data->devices); + dev_set_drvdata(dev, data); + + return devm_snd_soc_register_component(dev, &q6usb_dai_component, + q6usb_be_dais, ARRAY_SIZE(q6usb_be_dais)); +} + +static const struct of_device_id q6usb_dai_device_id[] = { + { .compatible = "qcom,q6usb" }, + {}, +}; +MODULE_DEVICE_TABLE(of, q6usb_dai_device_id); + +static struct platform_driver q6usb_dai_platform_driver = { + .driver = { + .name = "q6usb-dai", + .of_match_table = of_match_ptr(q6usb_dai_device_id), + }, + .probe = q6usb_dai_dev_probe, + /* + * Remove not required as resources are cleaned up as part of + * component removal. Others are device managed resources. + */ +}; +module_platform_driver(q6usb_dai_platform_driver); + +MODULE_DESCRIPTION("Q6 USB backend dai driver"); +MODULE_LICENSE("GPL"); From patchwork Thu Aug 1 01:17:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816101 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4F1AFC3DA7F for ; Thu, 1 Aug 2024 01:24:19 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 13E1A2FD4; Thu, 1 Aug 2024 03:23:33 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 13E1A2FD4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475423; bh=r8ezgd/Gmc5A7vJyIKzsQe/Jd6XDu0X6ef4rKrjqv4k=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=MRH8eWchpkc4QiuHzcaxsQt1GqzKmDLt/BTUJLdTwjZu2NTl1L4DQ1/945FXL3zrk EyO9knSAJaz+t9XmqwbLaAjQJIFEVO+tCKoFbdi/SRzqTe+pvXg642Q+ql3DSsW10s Q8RqN0jomMKIFLeyK4XGjcOoz4crzv/Y8ZApxSoc= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5AF76F80710; Thu, 1 Aug 2024 03:21:14 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id C815DF8070D; Thu, 1 Aug 2024 03:21:13 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id DCAF6F80588; Thu, 1 Aug 2024 03:18:16 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 06AE2F80579 for ; Thu, 1 Aug 2024 03:17:49 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 06AE2F80579 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=dCTBFzHN Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VDMNfP024000; Thu, 1 Aug 2024 01:17:48 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=TtSFz3KykgXNQPcTeqAGcPRM SpuLyxaV/c5izHrloGo=; b=dCTBFzHNxw4yLNky2bpOwiL7Kspc/6dA5ClRm+W2 D5lyVir9JIXU8wJRnuusmlVi8l1dBt8bolCbeKyRyt/EIIn7qt/BQF+yVdDtt726 VyqFx60NwYjDV3wvZtwPisRCv/h9WqfIqDPXp5PWeI2Gh8a4jeXzL5OkJHBzEnHv DZ37zXQpiIYF0qVYR0qh5BOoco/ILMR/R9I9gcCr4crP2uLKdqXW0p3RRxXjvAC0 gX4HCr8eyYD6lVWyu/jW7u1NXaMQOzKqITs5x6s8o0s8E/2EXD3fSbU6e05np8O8 ldlE6MruExkbzv4u71TOevZOo1uuwYBPyrNtvidw/5gKFQ== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw456g11-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:47 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HkF0020154 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:46 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; Wed, 31 Jul 2024 18:17:46 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 18/34] ASoC: qcom: qdsp6: Add headphone jack for offload connection status Date: Wed, 31 Jul 2024 18:17:14 -0700 Message-ID: <20240801011730.4797-19-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: 7om5ZiYWEK0ZmUjLk1DfeSvQWei8eahG X-Proofpoint-ORIG-GUID: 7om5ZiYWEK0ZmUjLk1DfeSvQWei8eahG 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 priorityscore=1501 suspectscore=0 adultscore=0 clxscore=1015 impostorscore=0 malwarescore=0 lowpriorityscore=0 mlxlogscore=999 phishscore=0 bulkscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: FJN5YPCI25YRI32EIAPX3EU36NAJFDIU X-Message-ID-Hash: FJN5YPCI25YRI32EIAPX3EU36NAJFDIU 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: The headphone jack framework has a well defined infrastructure for notifying userspace entities through input devices. Expose a jack device that carries information about if an offload capable device is connected. Applications can further identify specific offloading information through other SND kcontrols. Signed-off-by: Wesley Cheng --- sound/soc/qcom/Kconfig | 5 +++ sound/soc/qcom/Makefile | 2 ++ sound/soc/qcom/qdsp6/q6usb.c | 40 +++++++++++++++++++++ sound/soc/qcom/sm8250.c | 23 +++++++++++- sound/soc/qcom/usb_offload_utils.c | 56 ++++++++++++++++++++++++++++++ sound/soc/qcom/usb_offload_utils.h | 29 ++++++++++++++++ 6 files changed, 154 insertions(+), 1 deletion(-) create mode 100644 sound/soc/qcom/usb_offload_utils.c create mode 100644 sound/soc/qcom/usb_offload_utils.h diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig index a1beafe2b1dd..e5284a93cf9a 100644 --- a/sound/soc/qcom/Kconfig +++ b/sound/soc/qcom/Kconfig @@ -118,9 +118,14 @@ config SND_SOC_QDSP6_PRM tristate select SND_SOC_QDSP6_PRM_LPASS_CLOCKS +config SND_SOC_QCOM_OFFLOAD_UTILS + tristate + config SND_SOC_QDSP6_USB tristate "SoC ALSA USB offloading backing for QDSP6" depends on SND_SOC_USB + select SND_SOC_QCOM_OFFLOAD_UTILS + help Adds support for USB offloading for QDSP6 ASoC based platform sound cards. This will enable the diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile index 16db7b53ddac..985ce2ae286b 100644 --- a/sound/soc/qcom/Makefile +++ b/sound/soc/qcom/Makefile @@ -30,6 +30,7 @@ snd-soc-sc8280xp-y := sc8280xp.o snd-soc-qcom-common-y := common.o snd-soc-qcom-sdw-y := sdw.o snd-soc-x1e80100-y := x1e80100.o +snd-soc-qcom-offload-utils-objs := usb_offload_utils.o obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o @@ -42,6 +43,7 @@ obj-$(CONFIG_SND_SOC_SM8250) += snd-soc-sm8250.o obj-$(CONFIG_SND_SOC_QCOM_COMMON) += snd-soc-qcom-common.o obj-$(CONFIG_SND_SOC_QCOM_SDW) += snd-soc-qcom-sdw.o obj-$(CONFIG_SND_SOC_X1E80100) += snd-soc-x1e80100.o +obj-$(CONFIG_SND_SOC_QCOM_OFFLOAD_UTILS) += snd-soc-qcom-offload-utils.o #DSP lib obj-$(CONFIG_SND_SOC_QDSP6) += qdsp6/ diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c index 9a46532e8c16..36c441d621fb 100644 --- a/sound/soc/qcom/qdsp6/q6usb.c +++ b/sound/soc/qcom/qdsp6/q6usb.c @@ -14,6 +14,7 @@ #include #include +#include #include #include #include @@ -30,6 +31,7 @@ struct q6usb_port_data { struct q6afe_usb_cfg usb_cfg; struct snd_soc_usb *usb; + struct snd_soc_jack *hs_jack; struct q6usb_offload priv; struct mutex mutex; struct list_head devices; @@ -135,14 +137,51 @@ static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb, mutex_lock(&data->mutex); if (connected) { /* Selects the latest USB headset plugged in for offloading */ + if (data->hs_jack && list_empty(&data->devices)) + snd_jack_report(data->hs_jack->jack, 1); + list_add_tail(&sdev->list, &data->devices); } else { list_del(&sdev->list); + + if (data->hs_jack && list_empty(&data->devices)) + snd_jack_report(data->hs_jack->jack, 0); } mutex_unlock(&data->mutex); return 0; } +static void q6usb_component_disable_jack(struct q6usb_port_data *data) +{ + /* Offload jack has already been disabled */ + if (!data->hs_jack) + return; + + snd_jack_report(data->hs_jack->jack, 0); + data->hs_jack = NULL; +} + +static void q6usb_component_enable_jack(struct q6usb_port_data *data, + struct snd_soc_jack *jack) +{ + snd_jack_report(jack->jack, !list_empty(&data->devices) ? 1 : 0); + data->hs_jack = jack; +} + +static int q6usb_component_set_jack(struct snd_soc_component *component, + struct snd_soc_jack *jack, void *priv) +{ + struct q6usb_port_data *data = dev_get_drvdata(component->dev); + + mutex_lock(&data->mutex); + if (jack) + q6usb_component_enable_jack(data, jack); + else + q6usb_component_disable_jack(data); + mutex_unlock(&data->mutex); + + return 0; +} static int q6usb_component_probe(struct snd_soc_component *component) { @@ -171,6 +210,7 @@ static void q6usb_component_remove(struct snd_soc_component *component) static const struct snd_soc_component_driver q6usb_dai_component = { .probe = q6usb_component_probe, + .set_jack = q6usb_component_set_jack, .remove = q6usb_component_remove, .name = "q6usb-dai-component", .dapm_widgets = q6usb_dai_widgets, diff --git a/sound/soc/qcom/sm8250.c b/sound/soc/qcom/sm8250.c index a15dafb99b33..a132a814ceb4 100644 --- a/sound/soc/qcom/sm8250.c +++ b/sound/soc/qcom/sm8250.c @@ -12,6 +12,7 @@ #include #include "qdsp6/q6afe.h" #include "common.h" +#include "usb_offload_utils.h" #include "sdw.h" #define DRIVER_NAME "sm8250" @@ -22,14 +23,33 @@ struct sm8250_snd_data { struct snd_soc_card *card; struct sdw_stream_runtime *sruntime[AFE_PORT_MAX]; struct snd_soc_jack jack; + struct snd_soc_jack usb_offload_jack; + bool usb_offload_jack_setup; bool jack_setup; }; static int sm8250_snd_init(struct snd_soc_pcm_runtime *rtd) { struct sm8250_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + int ret; + + if (cpu_dai->id == USB_RX) + ret = qcom_snd_usb_offload_jack_setup(rtd, &data->usb_offload_jack, + &data->usb_offload_jack_setup); + else + ret = qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup); + return ret; +} + +static void sm8250_snd_exit(struct snd_soc_pcm_runtime *rtd) +{ + struct sm8250_snd_data *data = snd_soc_card_get_drvdata(rtd->card); + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + + if (cpu_dai->id == USB_RX) + qcom_snd_usb_offload_jack_remove(rtd, &data->usb_offload_jack_setup); - return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup); } static int sm8250_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, @@ -129,6 +149,7 @@ static void sm8250_add_be_ops(struct snd_soc_card *card) for_each_card_prelinks(card, i, link) { if (link->no_pcm == 1) { link->init = sm8250_snd_init; + link->exit = sm8250_snd_exit; link->be_hw_params_fixup = sm8250_be_hw_params_fixup; link->ops = &sm8250_be_ops; } diff --git a/sound/soc/qcom/usb_offload_utils.c b/sound/soc/qcom/usb_offload_utils.c new file mode 100644 index 000000000000..2d35d87d1519 --- /dev/null +++ b/sound/soc/qcom/usb_offload_utils.c @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ +#include +#include +#include +#include + +#include "usb_offload_utils.h" + +int qcom_snd_usb_offload_jack_setup(struct snd_soc_pcm_runtime *rtd, + struct snd_soc_jack *jack, bool *jack_setup) +{ + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); + int ret = 0; + + if (cpu_dai->id != USB_RX) + return -EINVAL; + + if (!*jack_setup) { + ret = snd_soc_usb_setup_offload_jack(codec_dai->component, jack); + if (ret) + return ret; + } + + *jack_setup = true; + + return 0; +} +EXPORT_SYMBOL_GPL(qcom_snd_usb_offload_jack_setup); + +int qcom_snd_usb_offload_jack_remove(struct snd_soc_pcm_runtime *rtd, + bool *jack_setup) +{ + struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); + int ret = 0; + + if (cpu_dai->id != USB_RX) + return -EINVAL; + + if (*jack_setup) { + ret = snd_soc_usb_disable_offload_jack(codec_dai->component); + if (ret) + return ret; + } + + *jack_setup = false; + + return 0; +} +EXPORT_SYMBOL_GPL(qcom_snd_usb_offload_jack_remove); +MODULE_DESCRIPTION("ASoC Q6 USB offload controls"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/qcom/usb_offload_utils.h b/sound/soc/qcom/usb_offload_utils.h new file mode 100644 index 000000000000..d44f78569b47 --- /dev/null +++ b/sound/soc/qcom/usb_offload_utils.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ +#ifndef __QCOM_SND_USB_OFFLOAD_UTILS_H__ +#define __QCOM_SND_USB_OFFLOAD_UTILS_H__ + +#include + +#if IS_ENABLED(CONFIG_SND_SOC_QCOM_OFFLOAD_UTILS) +int qcom_snd_usb_offload_jack_setup(struct snd_soc_pcm_runtime *rtd, + struct snd_soc_jack *jack, bool *jack_setup); + +int qcom_snd_usb_offload_jack_remove(struct snd_soc_pcm_runtime *rtd, + bool *jack_setup); +#else +static inline int qcom_snd_usb_offload_jack_setup(struct snd_soc_pcm_runtime *rtd, + struct snd_soc_jack *jack, bool *jack_setup) +{ + return -ENODEV; +} + +static inline int qcom_snd_usb_offload_jack_remove(struct snd_soc_pcm_runtime *rtd, + bool *jack_setup) +{ + return -ENODEV; +} +#endif /* IS_ENABLED(CONFIG_SND_SOC_QCOM_OFFLOAD_UTILS) */ +#endif /* __QCOM_SND_USB_OFFLOAD_UTILS_H__ */ From patchwork Thu Aug 1 01:17:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816321 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7B877C3DA7F for ; Thu, 1 Aug 2024 01:27:31 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 9D7AE2BD0; Thu, 1 Aug 2024 03:26:29 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 9D7AE2BD0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475599; bh=GkOcfRPuVtcPZZxjCBEX4Nz7K2f39TOd1oJDrcqkdt8=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=g78GG+1lDxWoETk9PVBO5JON8btTYttSaqe9ZMSO1/QkKg6af7wfpFnnOSKubo/ka 8xz52WzqIe6riVigLs1QdcHsbCx4TGoIU6xYlqkvW08Q90sRKtqQGaXBy18oOVCm36 yJEwa/JG8KN4z8bbTnx0ai9UVX+n8Z+bBHqP0fXU= Received: by alsa1.perex.cz (Postfix, from userid 50401) id AB838F896DD; Thu, 1 Aug 2024 03:21:35 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 14DE5F896F4; Thu, 1 Aug 2024 03:21:35 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 77A1BF80579; Thu, 1 Aug 2024 03:18:27 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 78528F805A9 for ; Thu, 1 Aug 2024 03:17:49 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 78528F805A9 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=ZeOH7Lca Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VMm9OF027260; Thu, 1 Aug 2024 01:17:47 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=MM8GjTWZDgBPukRc0Uhodgfi 3cbt6Pmy1ylBMrLBLVU=; b=ZeOH7LcaUSf2NyAtiSzCNdshk463a30AiuMOcl2K OrNDE95eseNWikSn3lp7zhhwAo4DiZn2MgnTICQCQKHjry17EezBmG6uNr79bG4N nENBhjHdKa0zU0HjCdY/t2/swahTXiyqMt3SgR37IIc7Eo1SInZTN638f1HWV4NK i81iUE67Hy8Lklopx8y3jAYJKkHEuua6pmLcJcqe6JCypapXUoAfZX40XfmneMYn Swd3Pu0mja3CbmyrOkHbplvQCUhGS2/Rh7jfWr2uEW2b8c7cbzQ+4FHPYjvJGVYt tgpx2boFlDzQC36cGxXfeuAi/tIiTuRatP2DLt/mDrDLjg== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40q232wce6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:47 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711Hk8P030363 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:47 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; Wed, 31 Jul 2024 18:17:46 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 19/34] ASoC: qcom: qdsp6: Fetch USB offload mapped card and PCM device Date: Wed, 31 Jul 2024 18:17:15 -0700 Message-ID: <20240801011730.4797-20-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: v13_PYpfh4T9fu0z2ioVEcVKXnWzps_j X-Proofpoint-ORIG-GUID: v13_PYpfh4T9fu0z2ioVEcVKXnWzps_j 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 malwarescore=0 bulkscore=0 priorityscore=1501 spamscore=0 adultscore=0 mlxscore=0 mlxlogscore=999 clxscore=1015 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: XQSLGNKGWWNBRR4QLMD6QGGGY3DJ4FLB X-Message-ID-Hash: XQSLGNKGWWNBRR4QLMD6QGGGY3DJ4FLB 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: The USB SND path may need to know how the USB offload path is routed, so that applications can open the proper sound card and PCM device. The implementation for the QC ASoC design has a "USB Mixer" kcontrol for each possible FE (Q6ASM) DAI, which can be utilized to know which front end link is enabled. When an application/userspace queries for the mapped offload devices, the logic will lookup the USB mixer status though the following path: MultiMedia* <-> MM_DL* <-> USB Mixer* The "USB Mixer" is a DAPM widget, and the q6routing entity will set the DAPM connect status accordingly if the USB mixer is enabled. If enabled, the Q6USB backend link can fetch the PCM device number from the FE DAI link (Multimedia*). With respects to the card number, that is straightfoward, as the ASoC components have direct references to the ASoC platform sound card. An example output can be shown below: Number of controls: 9 name value Capture Channel Map 0, 0 (range 0->36) Playback Channel Map 0, 0 (range 0->36) Headset Capture Switch On Headset Capture Volume 1 (range 0->4) Sidetone Playback Switch On Sidetone Playback Volume 4096 (range 0->8192) Headset Playback Switch On Headset Playback Volume 20, 20 (range 0->24) USB Offload Playback Route PCM#0 0, 1 (range -1->255) The "USB Offload Playback Route PCM#*" kcontrol will signify the corresponding card and pcm device it is offload to. (card#0 pcm - device#1) If the USB SND device supports multiple audio interfaces, then it will contain several PCM streams, hence in those situations, it is expected that there will be multiple playback route kcontrols created. Signed-off-by: Wesley Cheng --- sound/soc/qcom/qdsp6/q6usb.c | 89 ++++++++++++++++++++++++++++++++++++ 1 file changed, 89 insertions(+) diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c index 36c441d621fb..d8f1bb4ec497 100644 --- a/sound/soc/qcom/qdsp6/q6usb.c +++ b/sound/soc/qcom/qdsp6/q6usb.c @@ -124,6 +124,94 @@ static int q6usb_audio_ports_of_xlate_dai_name(struct snd_soc_component *compone return ret; } +static int q6usb_get_pcm_id_from_widget(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_dai *dai; + + for_each_card_rtds(w->dapm->card, rtd) { + dai = snd_soc_rtd_to_cpu(rtd, 0); + /* + * Only look for playback widget. RTD number carries the assigned + * PCM index. + */ + if (dai->stream[0].widget == w) + return rtd->num; + } + + return -1; +} + +static int q6usb_usb_mixer_enabled(struct snd_soc_dapm_widget *w) +{ + struct snd_soc_dapm_path *p; + + /* Checks to ensure USB path is enabled/connected */ + snd_soc_dapm_widget_for_each_sink_path(w, p) + if (!strcmp(p->sink->name, "USB Mixer") && p->connect) + return 1; + + return 0; +} + +static int q6usb_get_pcm_id(struct snd_soc_component *component) +{ + struct snd_soc_dapm_widget *w; + struct snd_soc_dapm_path *p; + int pidx; + + /* + * Traverse widgets to find corresponding FE widget. The DAI links are + * built like the following: + * MultiMedia* <-> MM_DL* <-> USB Mixer* + */ + for_each_card_widgets(component->card, w) { + + if (!strncmp(w->name, "MultiMedia", 10)) { + /* + * Look up all paths associated with the FE widget to see if + * the USB BE is enabled. The sink widget is responsible to + * link with the USB mixers. + */ + snd_soc_dapm_widget_for_each_sink_path(w, p) { + if (q6usb_usb_mixer_enabled(p->sink)) { + pidx = q6usb_get_pcm_id_from_widget(w); + return pidx; + } + } + } + } + + return -1; +} + +static int q6usb_get_offload_dev(struct snd_soc_component *component, + int card, int pcm, enum snd_soc_usb_kctl route) +{ + struct q6usb_port_data *data = dev_get_drvdata(component->dev); + struct snd_soc_usb_device *sdev; + int ret = -1; + + mutex_lock(&data->mutex); + + if (list_empty(&data->devices)) + goto out; + + sdev = list_last_entry(&data->devices, struct snd_soc_usb_device, list); + + if ((card == sdev->card_idx) && (pcm == sdev->pcm_idx)) { + if (route == SND_SOC_USB_KCTL_CARD_ROUTE) + ret = component->card->snd_card->number; + else if (route == SND_SOC_USB_KCTL_PCM_ROUTE) + ret = q6usb_get_pcm_id(component); + } + +out: + mutex_unlock(&data->mutex); + + return ret; +} + static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb, struct snd_soc_usb_device *sdev, bool connected) { @@ -193,6 +281,7 @@ static int q6usb_component_probe(struct snd_soc_component *component) return -ENOMEM; usb->connection_status_cb = q6usb_alsa_connection_cb; + usb->get_offload_dev = q6usb_get_offload_dev; snd_soc_usb_add_port(usb); data->usb = usb; From patchwork Thu Aug 1 01:17:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816326 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A2F65C3DA7F for ; Thu, 1 Aug 2024 01:24:48 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 4F8733015; Thu, 1 Aug 2024 03:23:59 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 4F8733015 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475449; bh=dwXZyRlGR/muRLfPxQ5pgAAU5mMDl95+p46kcdtagk8=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=VPMa2PDZ6Evav4R4PWnmw6GDj0sY3Up3m+QnfFcZRXVLVj4YQItNnGtrt3w2SpGjP G4UbSOlA4674hBDvr1R+3hAi/hH1RWqfPj7qXQVnL85TaraR9MsI/80eodLNJhxjOF KQCd2B9OtE0QkaczzhGw9EK70AKyzZcM/vR82V30= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 1C227F8075C; Thu, 1 Aug 2024 03:21:16 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 21508F8072D; Thu, 1 Aug 2024 03:21:16 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id EA2A8F80579; Thu, 1 Aug 2024 03:18:16 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 27F37F8058C for ; Thu, 1 Aug 2024 03:17:52 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 27F37F8058C Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=SKcL/QVI 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 46VDQ4p6029576; Thu, 1 Aug 2024 01:17:48 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=J0YifTOF3gGT3QjCq/GNslmv 18oONxubmTPd4pKp5X4=; b=SKcL/QVIj+XOHNWJiBubI9i2t04WjE9k5rA24tB8 nyQwqqkqyWN7soAK5AEdtI9L4S2/RyBGihaBrxgLbA/H7Eg2l2+jQpYWj9EWM/hl umzY3rNYv6dLiFCZSkvMLnbN5jV+zh1EiUQo3jykXQPsoM5MgbwBWJcBhxeoEvr7 f04sEvmBAj2dm10QJSW+9Mp77z5ZTnMNkco1ogEmhCjyluG4mhbI/kjAPhrsjoFg FAvl+04Z8FuraTKfoNhgBDftA3jwmTxbhA6V9v8te9d/DwpeyEg+nPP9XeU0daPT pqB7N01fEQOMxXjhfbhPVxGrLhU3I7aqFiE0eTaTFom1fA== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw446egk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:48 +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 4711HlJL026900 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:47 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; Wed, 31 Jul 2024 18:17:46 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 20/34] ALSA: usb-audio: Introduce USB SND platform op callbacks Date: Wed, 31 Jul 2024 18:17:16 -0700 Message-ID: <20240801011730.4797-21-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: hqzOQfZOBrhBmaxHWcocO6ejXb5yhWGI X-Proofpoint-ORIG-GUID: hqzOQfZOBrhBmaxHWcocO6ejXb5yhWGI 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 clxscore=1015 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: KM6IDT25QYGWJVWJHH7QDDZNLW5OPD35 X-Message-ID-Hash: KM6IDT25QYGWJVWJHH7QDDZNLW5OPD35 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: Allow for different platforms to be notified on USB SND connect/disconnect seqeunces. This allows for platform USB SND modules to properly initialize and populate internal structures with references to the USB SND chip device. Signed-off-by: Wesley Cheng --- sound/usb/card.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++ sound/usb/card.h | 9 ++++++++ 2 files changed, 62 insertions(+) diff --git a/sound/usb/card.c b/sound/usb/card.c index bdb04fa37a71..bb98ea45d1d7 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -118,6 +118,42 @@ MODULE_PARM_DESC(skip_validation, "Skip unit descriptor validation (default: no) static DEFINE_MUTEX(register_mutex); static struct snd_usb_audio *usb_chip[SNDRV_CARDS]; static struct usb_driver usb_audio_driver; +static struct snd_usb_platform_ops *platform_ops; + +/* + * Register platform specific operations that will be notified on events + * which occur in USB SND. The platform driver can utilize this path to + * enable features, such as USB audio offloading, which allows for audio data + * to be queued by an audio DSP. + * + * Only one set of platform operations can be registered to USB SND. The + * platform register operation is protected by the register_mutex. + */ +int snd_usb_register_platform_ops(struct snd_usb_platform_ops *ops) +{ + guard(mutex)(®ister_mutex); + if (platform_ops) + return -EEXIST; + + platform_ops = ops; + return 0; +} +EXPORT_SYMBOL_GPL(snd_usb_register_platform_ops); + +/* + * Unregisters the current set of platform operations. This allows for + * a new set to be registered if required. + * + * The platform unregister operation is protected by the register_mutex. + */ +int snd_usb_unregister_platform_ops(void) +{ + guard(mutex)(®ister_mutex); + platform_ops = NULL; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_usb_unregister_platform_ops); /* * disconnect streams @@ -914,7 +950,11 @@ static int usb_audio_probe(struct usb_interface *intf, chip->num_interfaces++; usb_set_intfdata(intf, chip); atomic_dec(&chip->active); + + if (platform_ops && platform_ops->connect_cb) + platform_ops->connect_cb(chip); mutex_unlock(®ister_mutex); + return 0; __error: @@ -951,6 +991,9 @@ static void usb_audio_disconnect(struct usb_interface *intf) card = chip->card; mutex_lock(®ister_mutex); + if (platform_ops && platform_ops->disconnect_cb) + platform_ops->disconnect_cb(chip); + if (atomic_inc_return(&chip->shutdown) == 1) { struct snd_usb_stream *as; struct snd_usb_endpoint *ep; @@ -1094,6 +1137,11 @@ static int usb_audio_suspend(struct usb_interface *intf, pm_message_t message) chip->system_suspend = chip->num_suspended_intf; } + mutex_lock(®ister_mutex); + if (platform_ops && platform_ops->suspend_cb) + platform_ops->suspend_cb(intf, message); + mutex_unlock(®ister_mutex); + return 0; } @@ -1134,6 +1182,11 @@ static int usb_audio_resume(struct usb_interface *intf) snd_usb_midi_v2_resume_all(chip); + mutex_lock(®ister_mutex); + if (platform_ops && platform_ops->resume_cb) + platform_ops->resume_cb(intf); + mutex_unlock(®ister_mutex); + out: if (chip->num_suspended_intf == chip->system_suspend) { snd_power_change_state(chip->card, SNDRV_CTL_POWER_D0); diff --git a/sound/usb/card.h b/sound/usb/card.h index 6ec95b2edf86..2884912adc96 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -207,4 +207,13 @@ struct snd_usb_stream { struct list_head list; }; +struct snd_usb_platform_ops { + void (*connect_cb)(struct snd_usb_audio *chip); + void (*disconnect_cb)(struct snd_usb_audio *chip); + void (*suspend_cb)(struct usb_interface *intf, pm_message_t message); + void (*resume_cb)(struct usb_interface *intf); +}; + +int snd_usb_register_platform_ops(struct snd_usb_platform_ops *ops); +int snd_usb_unregister_platform_ops(void); #endif /* __USBAUDIO_CARD_H */ From patchwork Thu Aug 1 01:17:17 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816322 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BA13EC3DA64 for ; Thu, 1 Aug 2024 01:26:48 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id EA3B33154; Thu, 1 Aug 2024 03:25:57 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz EA3B33154 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475568; bh=43oBQVEo67drfTm+3pbJeYPIgCVOIh/KMkrNU8ppnRo=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=BgBZFvvX4F6OIaYdDCEeYwu5wFdcvIzqDAlfdeUqe9rnUgRIL2SXSDut7R+NBWK+H Lyb8BIjN5YAcXzRQ0fAH6QV6puKRmK6lZ/s9+7QTVtf1xflrFUquGX9fYASlACDJlP +pRb7WIAKfAgoP85R7FOzhkv1iYj0/Vignsdru1g= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5E8B2F89612; Thu, 1 Aug 2024 03:21:31 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 606A0F89612; Thu, 1 Aug 2024 03:21:31 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id D8044F80579; Thu, 1 Aug 2024 03:18:25 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id A8924F805AA for ; Thu, 1 Aug 2024 03:17:53 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz A8924F805AA Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=pEMciGXa Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VH2USl022635; Thu, 1 Aug 2024 01:17:48 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=NwyURFgri2cIWBVMtVhZ52KE guO4pvb1psF8cvURl5w=; b=pEMciGXakPZJYzdLNj6OZGGJvUiHTEit9i/Cn9Qm n78fPIhQmqzaOHVi03kS11/Ydt79XAIllt45837Nwz2DbvGAYoDbYaxuusS3mYU1 z8yX8x+7kMA5vYhAtGX8ZnCOus/gi0Y+dBeDwYSe8uDfWB9anyw5zdQosKaU6EP4 P48cbWcoHLfsEvGCepXf1siZ0LslRnNP87NYxEP6EX6L+0x3s7GSspRDDOdJ3GBc 9XZj5qusoG4YsKYWn3uDeYCM3DA56n3KbY28/4jVt55a9Q8M/OmVzur7zK77WbLe kGqqyu7RFJIOUc90hxKOEaFm44ZPsL2bXN2DgpLb5xPp4w== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40ms43d1t1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:48 +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 4711Hlk2026903 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:47 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; Wed, 31 Jul 2024 18:17:47 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 21/34] ALSA: usb-audio: Export USB SND APIs for modules Date: Wed, 31 Jul 2024 18:17:17 -0700 Message-ID: <20240801011730.4797-22-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: W31wW6ICr9eKvtokgUJ41wsUBors0HVx X-Proofpoint-ORIG-GUID: W31wW6ICr9eKvtokgUJ41wsUBors0HVx 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 priorityscore=1501 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010004 Message-ID-Hash: LQON7LSFFJTNOL2HJGMTW3DUDCR3DJCQ X-Message-ID-Hash: LQON7LSFFJTNOL2HJGMTW3DUDCR3DJCQ 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: 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 | 4 +++ sound/usb/endpoint.c | 1 + sound/usb/helper.c | 1 + sound/usb/pcm.c | 75 +++++++++++++++++++++++++++++++------------- sound/usb/pcm.h | 11 +++++++ 5 files changed, 71 insertions(+), 21 deletions(-) diff --git a/sound/usb/card.c b/sound/usb/card.c index bb98ea45d1d7..8f1051e1716e 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -1065,6 +1065,7 @@ int snd_usb_lock_shutdown(struct snd_usb_audio *chip) wake_up(&chip->shutdown_wait); return err; } +EXPORT_SYMBOL_GPL(snd_usb_lock_shutdown); /* autosuspend and unlock the shutdown */ void snd_usb_unlock_shutdown(struct snd_usb_audio *chip) @@ -1073,6 +1074,7 @@ void snd_usb_unlock_shutdown(struct snd_usb_audio *chip) if (atomic_dec_and_test(&chip->usage_count)) wake_up(&chip->shutdown_wait); } +EXPORT_SYMBOL_GPL(snd_usb_unlock_shutdown); int snd_usb_autoresume(struct snd_usb_audio *chip) { @@ -1095,6 +1097,7 @@ int snd_usb_autoresume(struct snd_usb_audio *chip) } return 0; } +EXPORT_SYMBOL_GPL(snd_usb_autoresume); void snd_usb_autosuspend(struct snd_usb_audio *chip) { @@ -1108,6 +1111,7 @@ 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_GPL(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 8f65349a06d3..9876abb80853 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -1513,6 +1513,7 @@ int snd_usb_endpoint_prepare(struct snd_usb_audio *chip, mutex_unlock(&chip->mutex); return err; } +EXPORT_SYMBOL_GPL(snd_usb_endpoint_prepare); /* get the current rate set to the given clock by any endpoint */ int snd_usb_endpoint_get_clock_rate(struct snd_usb_audio *chip, int clock) diff --git a/sound/usb/helper.c b/sound/usb/helper.c index bf80e55d013a..4322ae3738e6 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 08bf535ed163..3adb09ce1702 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -148,6 +148,16 @@ find_format(struct list_head *fmt_list_head, snd_pcm_format_t format, return found; } +const struct audioformat * +snd_usb_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) +{ + return find_format(fmt_list_head, format, rate, channels, strict_match, + subs); +} +EXPORT_SYMBOL_GPL(snd_usb_find_format); + static const struct audioformat * find_substream_format(struct snd_usb_substream *subs, const struct snd_pcm_hw_params *params) @@ -157,6 +167,14 @@ find_substream_format(struct snd_usb_substream *subs, true, subs); } +const struct audioformat * +snd_usb_find_substream_format(struct snd_usb_substream *subs, + const struct snd_pcm_hw_params *params) +{ + return find_substream_format(subs, params); +} +EXPORT_SYMBOL_GPL(snd_usb_find_substream_format); + bool snd_usb_pcm_has_fixed_rate(struct snd_usb_substream *subs) { const struct audioformat *fp; @@ -461,20 +479,9 @@ static void close_endpoints(struct snd_usb_audio *chip, } } -/* - * hw_params callback - * - * allocate a buffer and set the given audio format. - * - * so far we use a physically linear buffer although packetize transfer - * doesn't need a continuous area. - * if sg buffer is supported on the later version of alsa, we'll follow - * that. - */ -static int snd_usb_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) +int snd_usb_hw_params(struct snd_usb_substream *subs, + struct snd_pcm_hw_params *hw_params) { - struct snd_usb_substream *subs = substream->runtime->private_data; struct snd_usb_audio *chip = subs->stream->chip; const struct audioformat *fmt; const struct audioformat *sync_fmt; @@ -499,7 +506,7 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, if (fmt->implicit_fb) { sync_fmt = snd_usb_find_implicit_fb_sync_format(chip, fmt, hw_params, - !substream->stream, + !subs->direction, &sync_fixed_rate); if (!sync_fmt) { usb_audio_dbg(chip, @@ -579,15 +586,28 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, return ret; } +EXPORT_SYMBOL_GPL(snd_usb_hw_params); /* - * hw_free callback + * hw_params callback * - * reset the audio format and release the buffer + * allocate a buffer and set the given audio format. + * + * so far we use a physically linear buffer although packetize transfer + * doesn't need a continuous area. + * if sg buffer is supported on the later version of alsa, we'll follow + * that. */ -static int snd_usb_hw_free(struct snd_pcm_substream *substream) +static int snd_usb_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) { struct snd_usb_substream *subs = substream->runtime->private_data; + + return snd_usb_hw_params(subs, hw_params); +} + +int snd_usb_hw_free(struct snd_usb_substream *subs) +{ struct snd_usb_audio *chip = subs->stream->chip; snd_media_stop_pipeline(subs); @@ -603,6 +623,19 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream) return 0; } +EXPORT_SYMBOL_GPL(snd_usb_hw_free); + +/* + * hw_free callback + * + * reset the audio format and release the buffer + */ +static int snd_usb_pcm_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_usb_substream *subs = substream->runtime->private_data; + + return snd_usb_hw_free(subs); +} /* free-wheeling mode? (e.g. dmix) */ static int in_free_wheeling_mode(struct snd_pcm_runtime *runtime) @@ -1746,8 +1779,8 @@ static int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream static const struct snd_pcm_ops snd_usb_playback_ops = { .open = snd_usb_pcm_open, .close = snd_usb_pcm_close, - .hw_params = snd_usb_hw_params, - .hw_free = snd_usb_hw_free, + .hw_params = snd_usb_pcm_hw_params, + .hw_free = snd_usb_pcm_hw_free, .prepare = snd_usb_pcm_prepare, .trigger = snd_usb_substream_playback_trigger, .sync_stop = snd_usb_pcm_sync_stop, @@ -1758,8 +1791,8 @@ static const struct snd_pcm_ops snd_usb_playback_ops = { static const struct snd_pcm_ops snd_usb_capture_ops = { .open = snd_usb_pcm_open, .close = snd_usb_pcm_close, - .hw_params = snd_usb_hw_params, - .hw_free = snd_usb_hw_free, + .hw_params = snd_usb_pcm_hw_params, + .hw_free = snd_usb_pcm_hw_free, .prepare = snd_usb_pcm_prepare, .trigger = snd_usb_substream_capture_trigger, .sync_stop = snd_usb_pcm_sync_stop, diff --git a/sound/usb/pcm.h b/sound/usb/pcm.h index 388fe2ba346d..be2dd9478982 100644 --- a/sound/usb/pcm.h +++ b/sound/usb/pcm.h @@ -15,4 +15,15 @@ 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); +const struct audioformat * +snd_usb_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 * +snd_usb_find_substream_format(struct snd_usb_substream *subs, + const struct snd_pcm_hw_params *params); + +int snd_usb_hw_params(struct snd_usb_substream *subs, + struct snd_pcm_hw_params *hw_params); +int snd_usb_hw_free(struct snd_usb_substream *subs); #endif /* __USBAUDIO_PCM_H */ From patchwork Thu Aug 1 01:17:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816094 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 58A25C3DA7F for ; Thu, 1 Aug 2024 01:28:18 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 6953631EC; Thu, 1 Aug 2024 03:27:15 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 6953631EC DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475645; bh=vTcLhZf2R8paXkJQUxSXklktGwb+rhfT7p4hKA16e8Q=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=RqZrPS8xAXgsRWXiSQziZgwCGQL3JjPCuM6/PVKa1QxU+su/a2v6b8ZPSEjjPlnja puFxi40w3ndF5AoMSfozd357J+QIcrUn5s/JGeSm5gGLiZ6X+Cr1ilDASkqSgmA9jI IuKpYOG8K72xenqWwxTO33k/A57YzpiN56gBTrjw= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 953C9F8974C; Thu, 1 Aug 2024 03:21:41 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 886ECF8974D; Thu, 1 Aug 2024 03:21:41 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id BFDE7F80579; Thu, 1 Aug 2024 03:18:31 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 1524BF805AD for ; Thu, 1 Aug 2024 03:17:54 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 1524BF805AD Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=ks56lpWC Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VDbKPV019111; Thu, 1 Aug 2024 01:17:48 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=uyF8k4GY10EkPruZFkeC0IFO j0f++wkbH8Kw38rv/5Y=; b=ks56lpWCRDw/YSLlu+4C5CgN8QVzwMJE8Je07zcn CzJ3tB4aHbtkQNiuZjijD7jz7ZW320wQsA+v8Qhghs8p1xHL26a4w/fvJxvb6aGy EJZOnmvthxYfnTSE2vUIGhz/aUrUchVHIiEFjnwIew1dVzQRH4yN+J9RiZ1AsD6P msCZWzdHSZVcHJn0eENOV9IFqYlBtO2v7c7HaQJ/ulwKU+OUs8Qx60i9OyJb5n3a H2YemQ4G0ZNeqYp5GChqy1yC7JluWc0KDm0O5JKBDS3fbCwuqMdG/BBRCUhWk2cX U8Y5EiaAqvrIKt8NnDN/1PPhIPjo+rPKmwMMpxEsuvla9Q== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40msnecwxr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:48 +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 4711HlIY026907 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:47 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; Wed, 31 Jul 2024 18:17:47 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 22/34] ALSA: usb-audio: Save UAC sample size information Date: Wed, 31 Jul 2024 18:17:18 -0700 Message-ID: <20240801011730.4797-23-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: 2HEEDNKlPc9K3y5juODjuS5z-kZGc6XL X-Proofpoint-ORIG-GUID: 2HEEDNKlPc9K3y5juODjuS5z-kZGc6XL 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=999 priorityscore=1501 clxscore=1015 spamscore=0 mlxscore=0 bulkscore=0 suspectscore=0 impostorscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: TREI6RQFDN3LBK4XKRWUKGIXTKY5LQG5 X-Message-ID-Hash: TREI6RQFDN3LBK4XKRWUKGIXTKY5LQG5 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: Within the UAC descriptor, there is information describing the size of a sample (bSubframeSize/bSubslotSize) and the number of relevant bits (bBitResolution). Currently, fmt_bits carries only the bit resolution, however, some offloading entities may also require the overall size of the sample. Save this information in a separate parameter, as depending on the UAC format type, the sample size can not easily be decoded from other exisiting parameters. Signed-off-by: Wesley Cheng --- sound/usb/card.h | 1 + sound/usb/format.c | 1 + 2 files changed, 2 insertions(+) diff --git a/sound/usb/card.h b/sound/usb/card.h index 2884912adc96..02e4ea898db5 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -15,6 +15,7 @@ struct audioformat { unsigned int channels; /* # channels */ unsigned int fmt_type; /* USB audio format type (1-3) */ unsigned int fmt_bits; /* number of significant bits */ + unsigned int fmt_sz; /* overall audio sub frame/slot size */ unsigned int frame_size; /* samples per frame for non-audio */ unsigned char iface; /* interface number */ unsigned char altsetting; /* corresponding alternate setting */ diff --git a/sound/usb/format.c b/sound/usb/format.c index 3b45d0ee7693..5fde543536a8 100644 --- a/sound/usb/format.c +++ b/sound/usb/format.c @@ -80,6 +80,7 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip, } fp->fmt_bits = sample_width; + fp->fmt_sz = sample_bytes; if ((pcm_formats == 0) && (format == 0 || format == (1 << UAC_FORMAT_TYPE_I_UNDEFINED))) { From patchwork Thu Aug 1 01:17:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816325 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BE8CBC3DA64 for ; Thu, 1 Aug 2024 01:25:09 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 9BE1B3039; Thu, 1 Aug 2024 03:24:19 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 9BE1B3039 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475469; bh=SiRRoStMJLVowcJiEYms1eLJh/IALYUgMouih7w73vU=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=VKLx5TWt9mOsZUFlnecZMYSPzgHdzXHm8Jvc274w+BvUNUZg5WHLxZ3KJDNRyuiYx 6WlFk6dDP3g6NGIH1aYAr7NviXG4Y+rnYEuPYRFxWT4tXqqqfKl4duW/Rvi7Xqju1p 3ysitjTPHFoBCQxWrnOqK81Ch+gQtoZlfPAehRv0= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 166E1F807B6; Thu, 1 Aug 2024 03:21:19 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 52993F807A6; Thu, 1 Aug 2024 03:21:19 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id A5DA9F80580; Thu, 1 Aug 2024 03:18:17 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id E5BF7F805A8 for ; Thu, 1 Aug 2024 03:17:55 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz E5BF7F805A8 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=gMcjLCV6 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 4710VJvZ030394; Thu, 1 Aug 2024 01:17:49 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=MF15WFpZlEPlZKaH7jrLwfZ0 WIOTOPgtdyH1a5eGX+s=; b=gMcjLCV6XbYF0eRYS7S46w6Q3ohk/I2Awe2ryWAm CyxtfAX3Muk6wz0FP8j9xKaFR27X4nGLROsnrYFHPqBB6VhyAymFP44uG08A56lh SjvExrj937mRa4Fi46LraiBk3vZjy+BB4iKx22HOd5MwOBHZHVIfowqx+WJ7Zk36 pD2U9oOmpiXIRZPyoBtJ6XccdVqpBYwFFbUzRfdF2nhtn49xoaunIZXHbIjRqw+N 0Fee3o7On5cd6j5b+M79hNToH+2jaCa+6jjjkuQ9739+jk9qLXgz9nK7qzvMzOAN WzLLbClFg1jTitj64N+14bQIeH8aLzdGWDDsBGK0aiEPSg== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw446egn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:49 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HmqB012418 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:48 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; Wed, 31 Jul 2024 18:17:47 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 23/34] ALSA: usb-audio: Prevent starting of audio stream if in use Date: Wed, 31 Jul 2024 18:17:19 -0700 Message-ID: <20240801011730.4797-24-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: uTBFVQZ2iFH_JvqJVyY9hgJMOBIAHMns X-Proofpoint-ORIG-GUID: uTBFVQZ2iFH_JvqJVyY9hgJMOBIAHMns 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 clxscore=1015 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: C4C2QD3AQQ2U77CFVMUZ3NWHWPEH4FXC X-Message-ID-Hash: C4C2QD3AQQ2U77CFVMUZ3NWHWPEH4FXC 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: With USB audio offloading, an audio session is started from the ASoC platform sound card and PCM devices. Likewise, the USB SND path is still readily available for use, in case the non-offload path is desired. In order to prevent the two entities from attempting to use the USB bus, introduce a flag that determines when either paths are in use. If a PCM device is already in use, the check will return an error to userspace notifying that the stream is currently busy. This ensures that only one path is using the USB substream. Signed-off-by: Wesley Cheng --- sound/usb/card.h | 1 + sound/usb/pcm.c | 29 ++++++++++++++++++++++++++--- 2 files changed, 27 insertions(+), 3 deletions(-) diff --git a/sound/usb/card.h b/sound/usb/card.h index 02e4ea898db5..e98883785301 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -165,6 +165,7 @@ struct snd_usb_substream { unsigned int pkt_offset_adj; /* Bytes to drop from beginning of packets (for non-compliant devices) */ unsigned int stream_offset_adj; /* Bytes to drop from beginning of stream (for non-compliant devices) */ + unsigned int opened:1; /* pcm device opened */ unsigned int running: 1; /* running status */ unsigned int period_elapsed_pending; /* delay period handling */ diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 3adb09ce1702..3e6d33de6ce6 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -1241,8 +1241,17 @@ static int snd_usb_pcm_open(struct snd_pcm_substream *substream) struct snd_usb_stream *as = snd_pcm_substream_chip(substream); struct snd_pcm_runtime *runtime = substream->runtime; struct snd_usb_substream *subs = &as->substream[direction]; + struct snd_usb_audio *chip = subs->stream->chip; int ret; + mutex_lock(&chip->mutex); + if (subs->opened) { + mutex_unlock(&chip->mutex); + return -EBUSY; + } + subs->opened = 1; + mutex_unlock(&chip->mutex); + runtime->hw = snd_usb_hardware; /* need an explicit sync to catch applptr update in low-latency mode */ if (direction == SNDRV_PCM_STREAM_PLAYBACK && @@ -1259,13 +1268,23 @@ static int snd_usb_pcm_open(struct snd_pcm_substream *substream) ret = setup_hw_info(runtime, subs); if (ret < 0) - return ret; + goto err_open; ret = snd_usb_autoresume(subs->stream->chip); if (ret < 0) - return ret; + goto err_open; ret = snd_media_stream_init(subs, as->pcm, direction); if (ret < 0) - snd_usb_autosuspend(subs->stream->chip); + goto err_resume; + + return 0; + +err_resume: + snd_usb_autosuspend(subs->stream->chip); +err_open: + mutex_lock(&chip->mutex); + subs->opened = 0; + mutex_unlock(&chip->mutex); + return ret; } @@ -1274,6 +1293,7 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream) int direction = substream->stream; struct snd_usb_stream *as = snd_pcm_substream_chip(substream); struct snd_usb_substream *subs = &as->substream[direction]; + struct snd_usb_audio *chip = subs->stream->chip; int ret; snd_media_stop_pipeline(subs); @@ -1287,6 +1307,9 @@ static int snd_usb_pcm_close(struct snd_pcm_substream *substream) subs->pcm_substream = NULL; snd_usb_autosuspend(subs->stream->chip); + mutex_lock(&chip->mutex); + subs->opened = 0; + mutex_unlock(&chip->mutex); return 0; } From patchwork Thu Aug 1 01:17:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816096 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C2CCFC3DA64 for ; Thu, 1 Aug 2024 01:26:59 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id A477E3178; Thu, 1 Aug 2024 03:26:10 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz A477E3178 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475580; bh=rAH9lQXdt+xoba424n6HNzz7OQlMhiOMAWV3bB3Ppt8=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=IPjITMdYkoZ82zYnSuWlNXZw0ugC/gs1jboNH8LqaAB7a4yeUe+yYXVQmrIdTk/qf e0hjY6f64DgYlY4v5PMOcxtrXgg1L95q+/EqJk6+OiFMRkdnP7Vbee/DxRlTLVMrRN 8jotb/ruoe7itGwXJbQQ08ADRPKU7vveaHzJMMts= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 179D4F896B9; Thu, 1 Aug 2024 03:21:34 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id B70F3F896B8; Thu, 1 Aug 2024 03:21:33 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id EDE38F80579; Thu, 1 Aug 2024 03:18:26 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 3003BF805AB for ; Thu, 1 Aug 2024 03:17:56 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 3003BF805AB Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=TOTaZ/zS Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VJkKc8001834; Thu, 1 Aug 2024 01:17:49 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=yjKVm2kTkPUY0O8Z+B/dUnJ2 wDpXr0PIc72TCL70gyY=; b=TOTaZ/zSk+6we/fNGwwx8ttp+ZDGhGIh3oHaXyU0 maeWlPI0K2dcqYUiWzpFD9eI3ux6xxGISOHqhumBb9NwhdP2fAeC4aIKhetEji7w W/vtJP3SPPJIp1LH9trRBYCpLM9ldUmVl+bCVgnMkp7az4JyMxdaoiQ6+MUZHu5s LWwwoBT09Nj/SBVK3DeWAHwKT17m/CFMBOmZdw9uOYTvT8GZbNq7scEdCKh4/bjO lcMcCXzlVkdVbM50oiGVLiC+6aXUd8aSGf5iN1xKWrd2TyQscb6hte0J6E6CvLjS K3x1SaLBYusEeEXdbupsQw4aGw35BRs4Iq59IaTm4DYu6g== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw456g13-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:49 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HmKB012429 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:48 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; Wed, 31 Jul 2024 18:17:47 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 24/34] ALSA: usb-audio: qcom: Add USB QMI definitions Date: Wed, 31 Jul 2024 18:17:20 -0700 Message-ID: <20240801011730.4797-25-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: LSgSbI9BvLzstAawAJAmo8_FvGZeX0Ap X-Proofpoint-ORIG-GUID: LSgSbI9BvLzstAawAJAmo8_FvGZeX0Ap 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 priorityscore=1501 suspectscore=0 adultscore=0 clxscore=1015 impostorscore=0 malwarescore=0 lowpriorityscore=0 mlxlogscore=999 phishscore=0 bulkscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: NDLT5YDFGPMG47DMAQBS3U5IBLXMSBPO X-Message-ID-Hash: NDLT5YDFGPMG47DMAQBS3U5IBLXMSBPO 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: The Qualcomm USB audio offload driver utilizes the QMI protocol to communicate with the audio DSP. Add the necessary QMI header and field definitions, so the QMI interface driver is able to route the QMI packet received to the USB audio offload driver. Signed-off-by: Wesley Cheng --- sound/usb/qcom/usb_audio_qmi_v01.c | 892 +++++++++++++++++++++++++++++ sound/usb/qcom/usb_audio_qmi_v01.h | 162 ++++++ 2 files changed, 1054 insertions(+) create mode 100644 sound/usb/qcom/usb_audio_qmi_v01.c create mode 100644 sound/usb/qcom/usb_audio_qmi_v01.h diff --git a/sound/usb/qcom/usb_audio_qmi_v01.c b/sound/usb/qcom/usb_audio_qmi_v01.c new file mode 100644 index 000000000000..5f61a8b1cef2 --- /dev/null +++ b/sound/usb/qcom/usb_audio_qmi_v01.c @@ -0,0 +1,892 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include + +#include "usb_audio_qmi_v01.h" + +static const struct qmi_elem_info mem_info_v01_ei[] = { + { + .data_type = QMI_UNSIGNED_8_BYTE, + .elem_len = 1, + .elem_size = sizeof(u64), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct mem_info_v01, va), + }, + { + .data_type = QMI_UNSIGNED_8_BYTE, + .elem_len = 1, + .elem_size = sizeof(u64), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct mem_info_v01, pa), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct mem_info_v01, size), + }, + { + .data_type = QMI_EOTI, + .array_type = NO_ARRAY, + .tlv_type = QMI_COMMON_TLV_TYPE, + }, +}; + +static const struct qmi_elem_info apps_mem_info_v01_ei[] = { + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct mem_info_v01), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct apps_mem_info_v01, evt_ring), + .ei_array = mem_info_v01_ei, + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct mem_info_v01), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct apps_mem_info_v01, tr_data), + .ei_array = mem_info_v01_ei, + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct mem_info_v01), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct apps_mem_info_v01, tr_sync), + .ei_array = mem_info_v01_ei, + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct mem_info_v01), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct apps_mem_info_v01, xfer_buff), + .ei_array = mem_info_v01_ei, + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct mem_info_v01), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct apps_mem_info_v01, dcba), + .ei_array = mem_info_v01_ei, + }, + { + .data_type = QMI_EOTI, + .array_type = NO_ARRAY, + .tlv_type = QMI_COMMON_TLV_TYPE, + }, +}; + +static const struct qmi_elem_info usb_endpoint_descriptor_v01_ei[] = { + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_endpoint_descriptor_v01, + bLength), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_endpoint_descriptor_v01, + bDescriptorType), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_endpoint_descriptor_v01, + bEndpointAddress), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_endpoint_descriptor_v01, + bmAttributes), + }, + { + .data_type = QMI_UNSIGNED_2_BYTE, + .elem_len = 1, + .elem_size = sizeof(u16), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_endpoint_descriptor_v01, + wMaxPacketSize), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_endpoint_descriptor_v01, + bInterval), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_endpoint_descriptor_v01, + bRefresh), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_endpoint_descriptor_v01, + bSynchAddress), + }, + { + .data_type = QMI_EOTI, + .array_type = NO_ARRAY, + .tlv_type = QMI_COMMON_TLV_TYPE, + }, +}; + +static const struct qmi_elem_info usb_interface_descriptor_v01_ei[] = { + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + bLength), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + bDescriptorType), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + bInterfaceNumber), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + bAlternateSetting), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + bNumEndpoints), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + bInterfaceClass), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + bInterfaceSubClass), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + bInterfaceProtocol), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0, + .offset = offsetof(struct usb_interface_descriptor_v01, + iInterface), + }, + { + .data_type = QMI_EOTI, + .array_type = NO_ARRAY, + .tlv_type = QMI_COMMON_TLV_TYPE, + }, +}; + +const struct qmi_elem_info qmi_uaudio_stream_req_msg_v01_ei[] = { + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x01, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + enable), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x02, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + usb_token), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x10, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + audio_format_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x10, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + audio_format), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x11, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + number_of_ch_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x11, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + number_of_ch), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x12, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + bit_rate_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x12, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + bit_rate), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x13, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + xfer_buff_size_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x13, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + xfer_buff_size), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x14, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + service_interval_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x14, + .offset = offsetof(struct qmi_uaudio_stream_req_msg_v01, + service_interval), + }, + { + .data_type = QMI_EOTI, + .array_type = NO_ARRAY, + .tlv_type = QMI_COMMON_TLV_TYPE, + }, +}; + +const struct qmi_elem_info qmi_uaudio_stream_resp_msg_v01_ei[] = { + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct qmi_response_type_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x02, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + resp), + .ei_array = qmi_response_type_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x10, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + status_valid), + }, + { + .data_type = QMI_SIGNED_4_BYTE_ENUM, + .elem_len = 1, + .elem_size = sizeof(enum usb_qmi_audio_stream_status_enum_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x10, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + status), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x11, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + internal_status_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x11, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + internal_status), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x12, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + slot_id_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x12, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + slot_id), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x13, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + usb_token_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x13, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + usb_token), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x14, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + std_as_opr_intf_desc_valid), + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct usb_interface_descriptor_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x14, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + std_as_opr_intf_desc), + .ei_array = usb_interface_descriptor_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x15, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + std_as_data_ep_desc_valid), + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct usb_endpoint_descriptor_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x15, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + std_as_data_ep_desc), + .ei_array = usb_endpoint_descriptor_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x16, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + std_as_sync_ep_desc_valid), + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct usb_endpoint_descriptor_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x16, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + std_as_sync_ep_desc), + .ei_array = usb_endpoint_descriptor_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x17, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + usb_audio_spec_revision_valid), + }, + { + .data_type = QMI_UNSIGNED_2_BYTE, + .elem_len = 1, + .elem_size = sizeof(u16), + .array_type = NO_ARRAY, + .tlv_type = 0x17, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + usb_audio_spec_revision), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x18, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + data_path_delay_valid), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x18, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + data_path_delay), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x19, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + usb_audio_subslot_size_valid), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x19, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + usb_audio_subslot_size), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x1A, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + xhci_mem_info_valid), + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct apps_mem_info_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x1A, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + xhci_mem_info), + .ei_array = apps_mem_info_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x1B, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + interrupter_num_valid), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x1B, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + interrupter_num), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x1C, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + speed_info_valid), + }, + { + .data_type = QMI_SIGNED_4_BYTE_ENUM, + .elem_len = 1, + .elem_size = sizeof(enum usb_qmi_audio_device_speed_enum_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x1C, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + speed_info), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x1D, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + controller_num_valid), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x1D, + .offset = offsetof( + struct qmi_uaudio_stream_resp_msg_v01, + controller_num), + }, + { + .data_type = QMI_EOTI, + .array_type = NO_ARRAY, + .tlv_type = QMI_COMMON_TLV_TYPE, + }, +}; + +const struct qmi_elem_info qmi_uaudio_stream_ind_msg_v01_ei[] = { + { + .data_type = QMI_SIGNED_4_BYTE_ENUM, + .elem_len = 1, + .elem_size = sizeof( + enum usb_qmi_audio_device_indication_enum_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x01, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + dev_event), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x02, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + slot_id), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x10, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + usb_token_valid), + }, + { + .data_type = QMI_UNSIGNED_4_BYTE, + .elem_len = 1, + .elem_size = sizeof(u32), + .array_type = NO_ARRAY, + .tlv_type = 0x10, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + usb_token), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x11, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + std_as_opr_intf_desc_valid), + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct usb_interface_descriptor_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x11, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + std_as_opr_intf_desc), + .ei_array = usb_interface_descriptor_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x12, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + std_as_data_ep_desc_valid), + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct usb_endpoint_descriptor_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x12, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + std_as_data_ep_desc), + .ei_array = usb_endpoint_descriptor_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x13, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + std_as_sync_ep_desc_valid), + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct usb_endpoint_descriptor_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x13, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + std_as_sync_ep_desc), + .ei_array = usb_endpoint_descriptor_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x14, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + usb_audio_spec_revision_valid), + }, + { + .data_type = QMI_UNSIGNED_2_BYTE, + .elem_len = 1, + .elem_size = sizeof(u16), + .array_type = NO_ARRAY, + .tlv_type = 0x14, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + usb_audio_spec_revision), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x15, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + data_path_delay_valid), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x15, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + data_path_delay), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x16, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + usb_audio_subslot_size_valid), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x16, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + usb_audio_subslot_size), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x17, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + xhci_mem_info_valid), + }, + { + .data_type = QMI_STRUCT, + .elem_len = 1, + .elem_size = sizeof(struct apps_mem_info_v01), + .array_type = NO_ARRAY, + .tlv_type = 0x17, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + xhci_mem_info), + .ei_array = apps_mem_info_v01_ei, + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x18, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + interrupter_num_valid), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x18, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + interrupter_num), + }, + { + .data_type = QMI_OPT_FLAG, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x19, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + controller_num_valid), + }, + { + .data_type = QMI_UNSIGNED_1_BYTE, + .elem_len = 1, + .elem_size = sizeof(u8), + .array_type = NO_ARRAY, + .tlv_type = 0x19, + .offset = offsetof(struct qmi_uaudio_stream_ind_msg_v01, + controller_num), + }, + { + .data_type = QMI_EOTI, + .array_type = NO_ARRAY, + .tlv_type = QMI_COMMON_TLV_TYPE, + }, +}; diff --git a/sound/usb/qcom/usb_audio_qmi_v01.h b/sound/usb/qcom/usb_audio_qmi_v01.h new file mode 100644 index 000000000000..6876c4d225a8 --- /dev/null +++ b/sound/usb/qcom/usb_audio_qmi_v01.h @@ -0,0 +1,162 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef USB_QMI_V01_H +#define USB_QMI_V01_H + +#define UAUDIO_STREAM_SERVICE_ID_V01 0x41D +#define UAUDIO_STREAM_SERVICE_VERS_V01 0x01 + +#define QMI_UAUDIO_STREAM_RESP_V01 0x0001 +#define QMI_UAUDIO_STREAM_REQ_V01 0x0001 +#define QMI_UAUDIO_STREAM_IND_V01 0x0001 + + +struct mem_info_v01 { + u64 va; + u64 pa; + u32 size; +}; + +struct apps_mem_info_v01 { + struct mem_info_v01 evt_ring; + struct mem_info_v01 tr_data; + struct mem_info_v01 tr_sync; + struct mem_info_v01 xfer_buff; + struct mem_info_v01 dcba; +}; + +struct usb_endpoint_descriptor_v01 { + u8 bLength; + u8 bDescriptorType; + u8 bEndpointAddress; + u8 bmAttributes; + u16 wMaxPacketSize; + u8 bInterval; + u8 bRefresh; + u8 bSynchAddress; +}; + +struct usb_interface_descriptor_v01 { + u8 bLength; + u8 bDescriptorType; + u8 bInterfaceNumber; + u8 bAlternateSetting; + u8 bNumEndpoints; + u8 bInterfaceClass; + u8 bInterfaceSubClass; + u8 bInterfaceProtocol; + u8 iInterface; +}; + +enum usb_qmi_audio_stream_status_enum_v01 { + USB_QMI_STREAM_STATUS_ENUM_MIN_VAL_V01 = INT_MIN, + USB_QMI_STREAM_REQ_SUCCESS_V01 = 0, + USB_QMI_STREAM_REQ_FAILURE_V01 = 1, + USB_QMI_STREAM_REQ_FAILURE_NOT_FOUND_V01 = 2, + USB_QMI_STREAM_REQ_FAILURE_INVALID_PARAM_V01 = 3, + USB_QMI_STREAM_REQ_FAILURE_MEMALLOC_V01 = 4, + USB_QMI_STREAM_STATUS_ENUM_MAX_VAL_V01 = INT_MAX, +}; + +enum usb_qmi_audio_device_indication_enum_v01 { + USB_QMI_DEVICE_INDICATION_ENUM_MIN_VAL_V01 = INT_MIN, + USB_QMI_DEV_CONNECT_V01 = 0, + USB_QMI_DEV_DISCONNECT_V01 = 1, + USB_QMI_DEV_SUSPEND_V01 = 2, + USB_QMI_DEV_RESUME_V01 = 3, + USB_QMI_DEVICE_INDICATION_ENUM_MAX_VAL_V01 = INT_MAX, +}; + +enum usb_qmi_audio_device_speed_enum_v01 { + USB_QMI_DEVICE_SPEED_ENUM_MIN_VAL_V01 = INT_MIN, + USB_QMI_DEVICE_SPEED_INVALID_V01 = 0, + USB_QMI_DEVICE_SPEED_LOW_V01 = 1, + USB_QMI_DEVICE_SPEED_FULL_V01 = 2, + USB_QMI_DEVICE_SPEED_HIGH_V01 = 3, + USB_QMI_DEVICE_SPEED_SUPER_V01 = 4, + USB_QMI_DEVICE_SPEED_SUPER_PLUS_V01 = 5, + USB_QMI_DEVICE_SPEED_ENUM_MAX_VAL_V01 = INT_MAX, +}; + +struct qmi_uaudio_stream_req_msg_v01 { + u8 enable; + u32 usb_token; + u8 audio_format_valid; + u32 audio_format; + u8 number_of_ch_valid; + u32 number_of_ch; + u8 bit_rate_valid; + u32 bit_rate; + u8 xfer_buff_size_valid; + u32 xfer_buff_size; + u8 service_interval_valid; + u32 service_interval; +}; +#define QMI_UAUDIO_STREAM_REQ_MSG_V01_MAX_MSG_LEN 46 +extern const struct qmi_elem_info qmi_uaudio_stream_req_msg_v01_ei[]; + +struct qmi_uaudio_stream_resp_msg_v01 { + struct qmi_response_type_v01 resp; + u8 status_valid; + enum usb_qmi_audio_stream_status_enum_v01 status; + u8 internal_status_valid; + u32 internal_status; + u8 slot_id_valid; + u32 slot_id; + u8 usb_token_valid; + u32 usb_token; + u8 std_as_opr_intf_desc_valid; + struct usb_interface_descriptor_v01 std_as_opr_intf_desc; + u8 std_as_data_ep_desc_valid; + struct usb_endpoint_descriptor_v01 std_as_data_ep_desc; + u8 std_as_sync_ep_desc_valid; + struct usb_endpoint_descriptor_v01 std_as_sync_ep_desc; + u8 usb_audio_spec_revision_valid; + u16 usb_audio_spec_revision; + u8 data_path_delay_valid; + u8 data_path_delay; + u8 usb_audio_subslot_size_valid; + u8 usb_audio_subslot_size; + u8 xhci_mem_info_valid; + struct apps_mem_info_v01 xhci_mem_info; + u8 interrupter_num_valid; + u8 interrupter_num; + u8 speed_info_valid; + enum usb_qmi_audio_device_speed_enum_v01 speed_info; + u8 controller_num_valid; + u8 controller_num; +}; +#define QMI_UAUDIO_STREAM_RESP_MSG_V01_MAX_MSG_LEN 202 +extern const struct qmi_elem_info qmi_uaudio_stream_resp_msg_v01_ei[]; + +struct qmi_uaudio_stream_ind_msg_v01 { + enum usb_qmi_audio_device_indication_enum_v01 dev_event; + u32 slot_id; + u8 usb_token_valid; + u32 usb_token; + u8 std_as_opr_intf_desc_valid; + struct usb_interface_descriptor_v01 std_as_opr_intf_desc; + u8 std_as_data_ep_desc_valid; + struct usb_endpoint_descriptor_v01 std_as_data_ep_desc; + u8 std_as_sync_ep_desc_valid; + struct usb_endpoint_descriptor_v01 std_as_sync_ep_desc; + u8 usb_audio_spec_revision_valid; + u16 usb_audio_spec_revision; + u8 data_path_delay_valid; + u8 data_path_delay; + u8 usb_audio_subslot_size_valid; + u8 usb_audio_subslot_size; + u8 xhci_mem_info_valid; + struct apps_mem_info_v01 xhci_mem_info; + u8 interrupter_num_valid; + u8 interrupter_num; + u8 controller_num_valid; + u8 controller_num; +}; +#define QMI_UAUDIO_STREAM_IND_MSG_V01_MAX_MSG_LEN 181 +extern const struct qmi_elem_info qmi_uaudio_stream_ind_msg_v01_ei[]; + +#endif From patchwork Thu Aug 1 01:17:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816315 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 181A2C3DA64 for ; Thu, 1 Aug 2024 01:30:55 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id C729E33B4; Thu, 1 Aug 2024 03:29:35 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C729E33B4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475785; bh=62uGFd4n2iiq4mlrsV+IuxGBPV0GJOgMmxbaQPkt4XE=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=Ugy7nl1C2LHLjg8sBOXpWa2PRTSKvJQ5klc89NiZfZeVOlotMX1nNi96hhl0S2J12 ZMkJgASyUerhaST1C/q4Py7Z/zjPLfID87SG2+FgJiYp6YOe8AjRPHoU6+JipPkm5i wrrZWenib9SawPtCTXZkRwkBZjT7YJB+fnwBxjJc= Received: by alsa1.perex.cz (Postfix, from userid 50401) id CC69EF8983A; Thu, 1 Aug 2024 03:22:00 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 6CA3EF89831; Thu, 1 Aug 2024 03:22:00 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id C0EC2F80269; Thu, 1 Aug 2024 03:18:47 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 8070FF805E5 for ; Thu, 1 Aug 2024 03:17:58 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 8070FF805E5 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=e58aZ986 Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4710ghkZ010014; Thu, 1 Aug 2024 01:17:50 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=CgAXl/eZ6IljX8lm5vkktgbv jV9dWoz12/yLbXrzWso=; b=e58aZ986tvgNCaN6MpC+6ybEsQyB+d2UoVL9HfKn GpGYOr3O4ZNnmrT360o0QjVj6CFTmjGKjiiwNUrnSAhXJKqTaQ62dc/l/ZBwF/KP Fxqneu9kq0+Jv4FCi8xaFyaQFWx/EFvai/rNqTtQDbmPRs5n5uYJIFAr549QyOXu Ij2xgPCezjeGn7nVUabaWeBBoOXORbwXNtTXU7hcXsgGTZEm3cn1eHuUkbifiX5Z GsDGxt36eaSFeVULnhQslKQD9XeiYNJRPqm2CZ+T8VvCd7AxGGXxq4W6X3NzAUsr HLozpLvjSjnFRHHFNrU3DYMP27E8m5piOFUS5jxTTo1glA== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qnbaa0w2-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:49 +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 4711HmdP026913 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:48 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; Wed, 31 Jul 2024 18:17:48 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 25/34] ALSA: usb-audio: qcom: Introduce QC USB SND offloading support Date: Wed, 31 Jul 2024 18:17:21 -0700 Message-ID: <20240801011730.4797-26-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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-ORIG-GUID: GdNetg2YLM0C7xQxbvn-qu3eJ1EbJa9w X-Proofpoint-GUID: GdNetg2YLM0C7xQxbvn-qu3eJ1EbJa9w 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 mlxlogscore=999 phishscore=0 mlxscore=0 impostorscore=0 clxscore=1015 suspectscore=0 adultscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: US6T6Z2B6HEEFIZFJGQ6EUXZPYW6YP4R X-Message-ID-Hash: US6T6Z2B6HEEFIZFJGQ6EUXZPYW6YP4R 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: Several Qualcomm SoCs have a dedicated audio DSP, which has the ability to support USB sound devices. This vendor driver will implement the required handshaking with the DSP, in order to pass along required resources that will be utilized by the DSP's USB SW. The communication channel used for this handshaking will be using the QMI protocol. Required resources include: - Allocated secondary event ring address - EP transfer ring address - Interrupter number The above information will allow for the audio DSP to execute USB transfers over the USB bus. It will also be able to support devices that have an implicit feedback and sync endpoint as well. Offloading these data transfers will allow the main/applications processor to enter lower CPU power modes, and sustain a longer duration in those modes. Audio offloading is initiated with the following sequence: 1. Userspace configures to route audio playback to USB backend and starts playback on the platform soundcard. 2. The Q6DSP AFE will communicate to the audio DSP to start the USB AFE port. 3. This results in a QMI packet with a STREAM enable command. 4. The QC audio offload driver will fetch the required resources, and pass this information as part of the QMI response to the STREAM enable command. 5. Once the QMI response is received the audio DSP will start queuing data on the USB bus. Signed-off-by: Wesley Cheng --- sound/usb/Kconfig | 15 + sound/usb/Makefile | 2 +- sound/usb/qcom/Makefile | 2 + sound/usb/qcom/qc_audio_offload.c | 1905 +++++++++++++++++++++++++++++ 4 files changed, 1923 insertions(+), 1 deletion(-) create mode 100644 sound/usb/qcom/Makefile create mode 100644 sound/usb/qcom/qc_audio_offload.c diff --git a/sound/usb/Kconfig b/sound/usb/Kconfig index 4a9569a3a39a..5cc3eaf53e6b 100644 --- a/sound/usb/Kconfig +++ b/sound/usb/Kconfig @@ -176,6 +176,21 @@ config SND_BCD2000 To compile this driver as a module, choose M here: the module will be called snd-bcd2000. +config SND_USB_AUDIO_QMI + tristate "Qualcomm Audio Offload driver" + depends on QCOM_QMI_HELPERS && SND_USB_AUDIO && USB_XHCI_SIDEBAND && SND_SOC_USB + select SND_PCM + help + Say Y here to enable the Qualcomm USB audio offloading feature. + + This module sets up the required QMI stream enable/disable + responses to requests generated by the audio DSP. It passes the + USB transfer resource references, so that the audio DSP can issue + USB transfers to the host controller. + + To compile this driver as a module, choose M here: the module + will be called snd-usb-audio-qmi. + source "sound/usb/line6/Kconfig" endif # SND_USB diff --git a/sound/usb/Makefile b/sound/usb/Makefile index 0532499dbc6d..54a06a2f73ca 100644 --- a/sound/usb/Makefile +++ b/sound/usb/Makefile @@ -34,5 +34,5 @@ obj-$(CONFIG_SND_USB_UA101) += snd-usbmidi-lib.o obj-$(CONFIG_SND_USB_USX2Y) += snd-usbmidi-lib.o obj-$(CONFIG_SND_USB_US122L) += snd-usbmidi-lib.o -obj-$(CONFIG_SND) += misc/ usx2y/ caiaq/ 6fire/ hiface/ bcd2000/ +obj-$(CONFIG_SND) += misc/ usx2y/ caiaq/ 6fire/ hiface/ bcd2000/ qcom/ obj-$(CONFIG_SND_USB_LINE6) += line6/ diff --git a/sound/usb/qcom/Makefile b/sound/usb/qcom/Makefile new file mode 100644 index 000000000000..a81c9b28d484 --- /dev/null +++ b/sound/usb/qcom/Makefile @@ -0,0 +1,2 @@ +snd-usb-audio-qmi-objs := usb_audio_qmi_v01.o qc_audio_offload.o +obj-$(CONFIG_SND_USB_AUDIO_QMI) += snd-usb-audio-qmi.o \ No newline at end of file diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c new file mode 100644 index 000000000000..8b0913b7256b --- /dev/null +++ b/sound/usb/qcom/qc_audio_offload.c @@ -0,0 +1,1905 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../usbaudio.h" +#include "../card.h" +#include "../endpoint.h" +#include "../format.h" +#include "../helper.h" +#include "../pcm.h" +#include "../power.h" + +#include "usb_audio_qmi_v01.h" + +/* Stream disable request timeout during USB device disconnect */ +#define DEV_RELEASE_WAIT_TIMEOUT 10000 /* in ms */ + +/* Data interval calculation parameters */ +#define BUS_INTERVAL_FULL_SPEED 1000 /* in us */ +#define BUS_INTERVAL_HIGHSPEED_AND_ABOVE 125 /* in us */ +#define MAX_BINTERVAL_ISOC_EP 16 + +#define QMI_STREAM_REQ_CARD_NUM_MASK 0xffff0000 +#define QMI_STREAM_REQ_DEV_NUM_MASK 0xff00 +#define QMI_STREAM_REQ_DIRECTION 0xff + +/* iommu resource parameters and management */ +#define PREPEND_SID_TO_IOVA(iova, sid) ((u64)(((u64)(iova)) | \ + (((u64)sid) << 32))) +#define IOVA_MASK(iova) (((u64)(iova)) & 0xFFFFFFFF) +#define IOVA_BASE 0x1000 +#define IOVA_XFER_RING_BASE (IOVA_BASE + PAGE_SIZE * (SNDRV_CARDS + 1)) +#define IOVA_XFER_BUF_BASE (IOVA_XFER_RING_BASE + PAGE_SIZE * SNDRV_CARDS * 32) +#define IOVA_XFER_RING_MAX (IOVA_XFER_BUF_BASE - PAGE_SIZE) +#define IOVA_XFER_BUF_MAX (0xfffff000 - PAGE_SIZE) + +#define MAX_XFER_BUFF_LEN (24 * PAGE_SIZE) + +struct iova_info { + struct list_head list; + unsigned long start_iova; + size_t size; + bool in_use; +}; + +struct intf_info { + unsigned long data_xfer_ring_va; + size_t data_xfer_ring_size; + unsigned long sync_xfer_ring_va; + size_t sync_xfer_ring_size; + unsigned long xfer_buf_va; + size_t xfer_buf_size; + phys_addr_t xfer_buf_pa; + unsigned int data_ep_pipe; + unsigned int sync_ep_pipe; + u8 *xfer_buf; + u8 intf_num; + u8 pcm_card_num; + u8 pcm_dev_num; + u8 direction; + bool in_use; +}; + +struct uaudio_qmi_dev { + struct device *dev; + struct q6usb_offload *data; + + /* list to keep track of available iova */ + struct list_head xfer_ring_list; + size_t xfer_ring_iova_size; + unsigned long curr_xfer_ring_iova; + struct list_head xfer_buf_list; + size_t xfer_buf_iova_size; + unsigned long curr_xfer_buf_iova; + + /* bit fields representing pcm card enabled */ + unsigned long card_slot; + /* indicate event ring mapped or not */ + bool er_mapped; + /* reference count to number of possible consumers */ + atomic_t qdev_in_use; + /* idx to last udev card number plugged in */ + unsigned int last_card_num; +}; + +struct uaudio_dev { + struct usb_device *udev; + /* audio control interface */ + struct usb_host_interface *ctrl_intf; + unsigned int usb_core_id; + atomic_t in_use; + struct kref kref; + wait_queue_head_t disconnect_wq; + + /* interface specific */ + int num_intf; + struct intf_info *info; + struct snd_usb_audio *chip; + + /* xhci sideband */ + struct xhci_sideband *sb; + + /* SoC USB device */ + struct snd_soc_usb_device *sdev; +}; + +static struct uaudio_dev uadev[SNDRV_CARDS]; +static struct uaudio_qmi_dev *uaudio_qdev; +static struct uaudio_qmi_svc *uaudio_svc; +static DEFINE_MUTEX(qdev_mutex); + +struct uaudio_qmi_svc { + struct qmi_handle *uaudio_svc_hdl; + struct sockaddr_qrtr client_sq; + bool client_connected; +}; + +enum mem_type { + MEM_EVENT_RING, + MEM_XFER_RING, + MEM_XFER_BUF, +}; + +/* Supported audio formats */ +enum usb_qmi_audio_format { + USB_QMI_PCM_FORMAT_S8 = 0, + USB_QMI_PCM_FORMAT_U8, + USB_QMI_PCM_FORMAT_S16_LE, + USB_QMI_PCM_FORMAT_S16_BE, + USB_QMI_PCM_FORMAT_U16_LE, + USB_QMI_PCM_FORMAT_U16_BE, + USB_QMI_PCM_FORMAT_S24_LE, + USB_QMI_PCM_FORMAT_S24_BE, + USB_QMI_PCM_FORMAT_U24_LE, + USB_QMI_PCM_FORMAT_U24_BE, + USB_QMI_PCM_FORMAT_S24_3LE, + USB_QMI_PCM_FORMAT_S24_3BE, + USB_QMI_PCM_FORMAT_U24_3LE, + USB_QMI_PCM_FORMAT_U24_3BE, + USB_QMI_PCM_FORMAT_S32_LE, + USB_QMI_PCM_FORMAT_S32_BE, + USB_QMI_PCM_FORMAT_U32_LE, + USB_QMI_PCM_FORMAT_U32_BE, +}; + +static enum usb_qmi_audio_device_speed_enum_v01 +get_speed_info(enum usb_device_speed udev_speed) +{ + switch (udev_speed) { + case USB_SPEED_LOW: + return USB_QMI_DEVICE_SPEED_LOW_V01; + case USB_SPEED_FULL: + return USB_QMI_DEVICE_SPEED_FULL_V01; + case USB_SPEED_HIGH: + return USB_QMI_DEVICE_SPEED_HIGH_V01; + case USB_SPEED_SUPER: + return USB_QMI_DEVICE_SPEED_SUPER_V01; + case USB_SPEED_SUPER_PLUS: + return USB_QMI_DEVICE_SPEED_SUPER_PLUS_V01; + default: + return USB_QMI_DEVICE_SPEED_INVALID_V01; + } +} + +static struct snd_usb_substream *find_substream(unsigned int card_num, + unsigned int pcm_idx, unsigned int direction) +{ + struct snd_usb_substream *subs = NULL; + struct snd_usb_audio *chip; + struct snd_usb_stream *as; + + chip = uadev[card_num].chip; + if (!chip || atomic_read(&chip->shutdown)) + goto done; + + if (pcm_idx >= chip->pcm_devs) + goto done; + + if (direction > SNDRV_PCM_STREAM_CAPTURE) + goto done; + + list_for_each_entry(as, &chip->pcm_list, list) { + if (as->pcm_index == pcm_idx) { + subs = &as->substream[direction]; + goto done; + } + } + +done: + return subs; +} + +static int info_idx_from_ifnum(int card_num, int intf_num, bool enable) +{ + int i; + + /* + * default index 0 is used when info is allocated upon + * first enable audio stream req for a pcm device + */ + if (enable && !uadev[card_num].info) + return 0; + + for (i = 0; i < uadev[card_num].num_intf; i++) { + if (enable && !uadev[card_num].info[i].in_use) + return i; + else if (!enable && + uadev[card_num].info[i].intf_num == intf_num) + return i; + } + + return -EINVAL; +} + +static int get_data_interval_from_si(struct snd_usb_substream *subs, + u32 service_interval) +{ + unsigned int bus_intval_mult; + unsigned int bus_intval; + unsigned int binterval; + + if (subs->dev->speed >= USB_SPEED_HIGH) + bus_intval = BUS_INTERVAL_HIGHSPEED_AND_ABOVE; + else + bus_intval = BUS_INTERVAL_FULL_SPEED; + + if (service_interval % bus_intval) + return -EINVAL; + + bus_intval_mult = service_interval / bus_intval; + binterval = ffs(bus_intval_mult); + if (!binterval || binterval > MAX_BINTERVAL_ISOC_EP) + return -EINVAL; + + /* check if another bit is set then bail out */ + bus_intval_mult = bus_intval_mult >> binterval; + if (bus_intval_mult) + return -EINVAL; + + return (binterval - 1); +} + +/* maps audio format received over QMI to asound.h based pcm format */ +static snd_pcm_format_t map_pcm_format(enum usb_qmi_audio_format fmt_received) +{ + switch (fmt_received) { + case USB_QMI_PCM_FORMAT_S8: + return SNDRV_PCM_FORMAT_S8; + case USB_QMI_PCM_FORMAT_U8: + return SNDRV_PCM_FORMAT_U8; + case USB_QMI_PCM_FORMAT_S16_LE: + return SNDRV_PCM_FORMAT_S16_LE; + case USB_QMI_PCM_FORMAT_S16_BE: + return SNDRV_PCM_FORMAT_S16_BE; + case USB_QMI_PCM_FORMAT_U16_LE: + return SNDRV_PCM_FORMAT_U16_LE; + case USB_QMI_PCM_FORMAT_U16_BE: + return SNDRV_PCM_FORMAT_U16_BE; + case USB_QMI_PCM_FORMAT_S24_LE: + return SNDRV_PCM_FORMAT_S24_LE; + case USB_QMI_PCM_FORMAT_S24_BE: + return SNDRV_PCM_FORMAT_S24_BE; + case USB_QMI_PCM_FORMAT_U24_LE: + return SNDRV_PCM_FORMAT_U24_LE; + case USB_QMI_PCM_FORMAT_U24_BE: + return SNDRV_PCM_FORMAT_U24_BE; + case USB_QMI_PCM_FORMAT_S24_3LE: + return SNDRV_PCM_FORMAT_S24_3LE; + case USB_QMI_PCM_FORMAT_S24_3BE: + return SNDRV_PCM_FORMAT_S24_3BE; + case USB_QMI_PCM_FORMAT_U24_3LE: + return SNDRV_PCM_FORMAT_U24_3LE; + case USB_QMI_PCM_FORMAT_U24_3BE: + return SNDRV_PCM_FORMAT_U24_3BE; + case USB_QMI_PCM_FORMAT_S32_LE: + return SNDRV_PCM_FORMAT_S32_LE; + case USB_QMI_PCM_FORMAT_S32_BE: + return SNDRV_PCM_FORMAT_S32_BE; + case USB_QMI_PCM_FORMAT_U32_LE: + return SNDRV_PCM_FORMAT_U32_LE; + case USB_QMI_PCM_FORMAT_U32_BE: + return SNDRV_PCM_FORMAT_U32_BE; + default: + /* + * We expect the caller to do input validation so we should + * never hit this. But we do have to return a proper + * snd_pcm_format_t value due to the __bitwise attribute; so + * just return the equivalent of 0 in case of bad input. + */ + return SNDRV_PCM_FORMAT_S8; + } +} + +/* Offloading IOMMU management */ +static unsigned long uaudio_get_iova(unsigned long *curr_iova, + size_t *curr_iova_size, struct list_head *head, size_t size) +{ + struct iova_info *info, *new_info = NULL; + struct list_head *curr_head; + size_t tmp_size = size; + unsigned long va = 0; + bool found = false; + + if (size % PAGE_SIZE) + goto done; + + if (size > *curr_iova_size) + goto done; + + if (*curr_iova_size == 0) + goto done; + + list_for_each_entry(info, head, list) { + /* exact size iova_info */ + if (!info->in_use && info->size == size) { + info->in_use = true; + va = info->start_iova; + *curr_iova_size -= size; + found = true; + goto done; + } else if (!info->in_use && tmp_size >= info->size) { + if (!new_info) + new_info = info; + tmp_size -= info->size; + if (tmp_size) + continue; + + va = new_info->start_iova; + for (curr_head = &new_info->list; curr_head != + &info->list; curr_head = curr_head->next) { + new_info = list_entry(curr_head, struct + iova_info, list); + new_info->in_use = true; + } + info->in_use = true; + *curr_iova_size -= size; + found = true; + goto done; + } else { + /* iova region in use */ + new_info = NULL; + tmp_size = size; + } + } + + info = kzalloc(sizeof(struct iova_info), GFP_KERNEL); + if (!info) { + va = 0; + goto done; + } + + va = info->start_iova = *curr_iova; + info->size = size; + info->in_use = true; + *curr_iova += size; + *curr_iova_size -= size; + found = true; + list_add_tail(&info->list, head); + +done: + return va; +} + +static void uaudio_put_iova(unsigned long va, size_t size, struct list_head + *head, size_t *curr_iova_size) +{ + struct iova_info *info; + size_t tmp_size = size; + bool found = false; + + list_for_each_entry(info, head, list) { + if (info->start_iova == va) { + if (!info->in_use) + return; + + found = true; + info->in_use = false; + if (info->size == size) + goto done; + } + + if (found && tmp_size >= info->size) { + info->in_use = false; + tmp_size -= info->size; + if (!tmp_size) + goto done; + } + } + + if (!found) + return; + +done: + *curr_iova_size += size; +} + +/** + * uaudio_iommu_unmap() - unmaps iommu memory for adsp + * @mtype: ring type + * @va: virtual address to unmap + * @iova_size: region size + * @mapped_iova_size: mapped region size + * + * Unmaps the memory region that was previously assigned to the adsp. + * + */ +static void uaudio_iommu_unmap(enum mem_type mtype, unsigned long va, + size_t iova_size, size_t mapped_iova_size) +{ + size_t umap_size; + bool unmap = true; + + if (!va || !iova_size) + return; + + switch (mtype) { + case MEM_EVENT_RING: + if (uaudio_qdev->er_mapped) + uaudio_qdev->er_mapped = false; + else + unmap = false; + break; + + case MEM_XFER_RING: + uaudio_put_iova(va, iova_size, &uaudio_qdev->xfer_ring_list, + &uaudio_qdev->xfer_ring_iova_size); + break; + case MEM_XFER_BUF: + uaudio_put_iova(va, iova_size, &uaudio_qdev->xfer_buf_list, + &uaudio_qdev->xfer_buf_iova_size); + break; + default: + unmap = false; + } + + if (!unmap || !mapped_iova_size) + return; + + umap_size = iommu_unmap(uaudio_qdev->data->domain, va, mapped_iova_size); + if (umap_size != mapped_iova_size) + dev_err(uaudio_qdev->data->dev, + "unmapped size %zu for iova 0x%08lx of mapped size %zu\n", + umap_size, va, mapped_iova_size); +} + +/** + * uaudio_iommu_map() - maps iommu memory for adsp + * @mtype: ring type + * @dma_coherent: dma coherent + * @pa: physical address for ring/buffer + * @size: size of memory region + * @sgt: sg table for memory region + * + * Maps the XHCI related resources to a memory region that is assigned to be + * used by the adsp. This will be mapped to the domain, which is created by + * the ASoC USB backend driver. + * + */ +static unsigned long uaudio_iommu_map(enum mem_type mtype, bool dma_coherent, + phys_addr_t pa, size_t size, struct sg_table *sgt) +{ + struct scatterlist *sg; + unsigned long va = 0; + size_t total_len = 0; + unsigned long va_sg; + phys_addr_t pa_sg; + bool map = true; + size_t sg_len; + int prot; + int ret; + int i; + + prot = IOMMU_READ | IOMMU_WRITE; + + if (dma_coherent) + prot |= IOMMU_CACHE; + + switch (mtype) { + case MEM_EVENT_RING: + va = IOVA_BASE; + /* er already mapped */ + if (uaudio_qdev->er_mapped) + map = false; + break; + case MEM_XFER_RING: + va = uaudio_get_iova(&uaudio_qdev->curr_xfer_ring_iova, + &uaudio_qdev->xfer_ring_iova_size, &uaudio_qdev->xfer_ring_list, + size); + break; + case MEM_XFER_BUF: + va = uaudio_get_iova(&uaudio_qdev->curr_xfer_buf_iova, + &uaudio_qdev->xfer_buf_iova_size, &uaudio_qdev->xfer_buf_list, + size); + break; + default: + dev_err(uaudio_qdev->data->dev, "unknown mem type %d\n", mtype); + } + + if (!va || !map) + goto done; + + if (!sgt) + goto skip_sgt_map; + + va_sg = va; + for_each_sg(sgt->sgl, sg, sgt->nents, i) { + sg_len = PAGE_ALIGN(sg->offset + sg->length); + pa_sg = page_to_phys(sg_page(sg)); + ret = iommu_map(uaudio_qdev->data->domain, va_sg, pa_sg, sg_len, + prot, GFP_KERNEL); + if (ret) { + uaudio_iommu_unmap(MEM_XFER_BUF, va, size, total_len); + va = 0; + goto done; + } + + va_sg += sg_len; + total_len += sg_len; + } + + if (size != total_len) { + uaudio_iommu_unmap(MEM_XFER_BUF, va, size, total_len); + va = 0; + } + return va; + +skip_sgt_map: + iommu_map(uaudio_qdev->data->domain, va, pa, size, prot, GFP_KERNEL); + +done: + return va; +} + +/* looks up alias, if any, for controller DT node and returns the index */ +static int usb_get_controller_id(struct usb_device *udev) +{ + if (udev->bus->sysdev && udev->bus->sysdev->of_node) + return of_alias_get_id(udev->bus->sysdev->of_node, "usb"); + + return -ENODEV; +} + +/** + * uaudio_dev_intf_cleanup() - cleanup transfer resources + * @udev: usb device + * @info: usb offloading interface + * + * Cleans up the transfer ring related resources which are assigned per + * endpoint from XHCI. This is invoked when the USB endpoints are no + * longer in use by the adsp. + * + */ +static void uaudio_dev_intf_cleanup(struct usb_device *udev, + struct intf_info *info) +{ + uaudio_iommu_unmap(MEM_XFER_RING, info->data_xfer_ring_va, + info->data_xfer_ring_size, info->data_xfer_ring_size); + info->data_xfer_ring_va = 0; + info->data_xfer_ring_size = 0; + + uaudio_iommu_unmap(MEM_XFER_RING, info->sync_xfer_ring_va, + info->sync_xfer_ring_size, info->sync_xfer_ring_size); + info->sync_xfer_ring_va = 0; + info->sync_xfer_ring_size = 0; + + uaudio_iommu_unmap(MEM_XFER_BUF, info->xfer_buf_va, + info->xfer_buf_size, info->xfer_buf_size); + info->xfer_buf_va = 0; + + usb_free_coherent(udev, info->xfer_buf_size, + info->xfer_buf, info->xfer_buf_pa); + info->xfer_buf_size = 0; + info->xfer_buf = NULL; + info->xfer_buf_pa = 0; + + info->in_use = false; +} + +/** + * uaudio_event_ring_cleanup_free() - cleanup secondary event ring + * @dev: usb offload device + * + * Cleans up the secondary event ring that was requested. This will + * occur when the adsp is no longer transferring data on the USB bus + * across all endpoints. + * + */ +static void uaudio_event_ring_cleanup_free(struct uaudio_dev *dev) +{ + clear_bit(dev->chip->card->number, &uaudio_qdev->card_slot); + /* all audio devices are disconnected */ + if (!uaudio_qdev->card_slot) { + uaudio_iommu_unmap(MEM_EVENT_RING, IOVA_BASE, PAGE_SIZE, + PAGE_SIZE); + xhci_sideband_remove_interrupter(uadev[dev->chip->card->number].sb); + } +} + +static void uaudio_dev_cleanup(struct uaudio_dev *dev) +{ + int if_idx; + + if (!dev->udev) + return; + + /* free xfer buffer and unmap xfer ring and buf per interface */ + for (if_idx = 0; if_idx < dev->num_intf; if_idx++) { + if (!dev->info[if_idx].in_use) + continue; + uaudio_dev_intf_cleanup(dev->udev, &dev->info[if_idx]); + dev_dbg(uaudio_qdev->data->dev, + "release resources: intf# %d card# %d\n", + dev->info[if_idx].intf_num, dev->chip->card->number); + } + + dev->num_intf = 0; + + /* free interface info */ + kfree(dev->info); + dev->info = NULL; + uaudio_event_ring_cleanup_free(dev); + dev->udev = NULL; +} + +/** + * disable_audio_stream() - disable usb snd endpoints + * @subs: usb substream + * + * Closes the USB SND endpoints associated with the current audio stream + * used. This will decrement the USB SND endpoint opened reference count. + * + */ +static void disable_audio_stream(struct snd_usb_substream *subs) +{ + struct snd_usb_audio *chip = subs->stream->chip; + + snd_usb_hw_free(subs); + snd_usb_autosuspend(chip); +} + +/* QMI service disconnect handlers */ +static void qmi_stop_session(void) +{ + struct snd_usb_substream *subs; + struct usb_host_endpoint *ep; + struct snd_usb_audio *chip; + struct intf_info *info; + int pcm_card_num; + int if_idx; + int idx; + + mutex_lock(&qdev_mutex); + /* find all active intf for set alt 0 and cleanup usb audio dev */ + for (idx = 0; idx < SNDRV_CARDS; idx++) { + if (!atomic_read(&uadev[idx].in_use)) + continue; + + chip = uadev[idx].chip; + for (if_idx = 0; if_idx < uadev[idx].num_intf; if_idx++) { + if (!uadev[idx].info || !uadev[idx].info[if_idx].in_use) + continue; + info = &uadev[idx].info[if_idx]; + pcm_card_num = info->pcm_card_num; + subs = find_substream(pcm_card_num, + info->pcm_dev_num, + info->direction); + if (!subs || !chip || atomic_read(&chip->shutdown)) { + dev_err(&subs->dev->dev, + "no sub for c#%u dev#%u dir%u\n", + info->pcm_card_num, + info->pcm_dev_num, + info->direction); + continue; + } + /* Release XHCI endpoints */ + if (info->data_ep_pipe) + ep = usb_pipe_endpoint(uadev[pcm_card_num].udev, + info->data_ep_pipe); + xhci_sideband_remove_endpoint(uadev[pcm_card_num].sb, ep); + + if (info->sync_ep_pipe) + ep = usb_pipe_endpoint(uadev[pcm_card_num].udev, + info->sync_ep_pipe); + xhci_sideband_remove_endpoint(uadev[pcm_card_num].sb, ep); + + disable_audio_stream(subs); + } + atomic_set(&uadev[idx].in_use, 0); + mutex_lock(&chip->mutex); + uaudio_dev_cleanup(&uadev[idx]); + mutex_unlock(&chip->mutex); + } + mutex_unlock(&qdev_mutex); +} + +/** + * qmi_bye_cb() - qmi bye message callback + * @handle: QMI handle + * @node: id of the dying node + * + * This callback is invoked when the QMI bye control message is received + * from the QMI client. Handle the message accordingly by ensuring that + * the USB offload path is disabled and cleaned up. At this point, ADSP + * is not utilizing the USB bus. + * + */ +static void qmi_bye_cb(struct qmi_handle *handle, unsigned int node) +{ + struct uaudio_qmi_svc *svc = uaudio_svc; + + if (svc->uaudio_svc_hdl != handle) + return; + + if (svc->client_connected && svc->client_sq.sq_node == node) { + qmi_stop_session(); + + /* clear QMI client parameters to block further QMI messages */ + svc->client_sq.sq_node = 0; + svc->client_sq.sq_port = 0; + svc->client_sq.sq_family = 0; + svc->client_connected = false; + } +} + +/** + * qmi_svc_disconnect_cb() - qmi client disconnected + * @handle: QMI handle + * @node: id of the dying node + * @port: port of the dying client + * + * Invoked when the remote QMI client is disconnected. Handle this event + * the same way as when the QMI bye message is received. This will ensure + * the USB offloading path is disabled and cleaned up. + * + */ +static void qmi_svc_disconnect_cb(struct qmi_handle *handle, + unsigned int node, unsigned int port) +{ + struct uaudio_qmi_svc *svc; + + if (uaudio_svc == NULL) + return; + + svc = uaudio_svc; + if (svc->uaudio_svc_hdl != handle) + return; + + if (svc->client_connected && svc->client_sq.sq_node == node && + svc->client_sq.sq_port == port) { + qmi_stop_session(); + + /* clear QMI client parameters to block further QMI messages */ + svc->client_sq.sq_node = 0; + svc->client_sq.sq_port = 0; + svc->client_sq.sq_family = 0; + svc->client_connected = false; + } +} + +/* QMI client callback handlers from QMI interface */ +static struct qmi_ops uaudio_svc_ops_options = { + .bye = qmi_bye_cb, + .del_client = qmi_svc_disconnect_cb, +}; + +/* kref release callback when all streams are disabled */ +static void uaudio_dev_release(struct kref *kref) +{ + struct uaudio_dev *dev = container_of(kref, struct uaudio_dev, kref); + + uaudio_event_ring_cleanup_free(dev); + atomic_set(&dev->in_use, 0); + wake_up(&dev->disconnect_wq); +} + +/** + * enable_audio_stream() - enable usb snd endpoints + * @subs: usb substream + * @pcm_format: pcm format requested + * @channels: number of channels + * @cur_rate: sample rate + * @datainterval: interval + * + * Opens all USB SND endpoints used for the data interface. This will increment + * the USB SND endpoint's opened count. Requests to keep the interface resumed + * until the audio stream is stopped. Will issue the USB set interface control + * message to enable the data interface. + * + */ +static int enable_audio_stream(struct snd_usb_substream *subs, + snd_pcm_format_t pcm_format, + unsigned int channels, unsigned int cur_rate, + int datainterval) +{ + struct snd_pcm_hw_params params; + struct snd_usb_audio *chip; + struct snd_interval *i; + struct snd_mask *m; + int ret; + + chip = subs->stream->chip; + + _snd_pcm_hw_params_any(¶ms); + + m = hw_param_mask(¶ms, SNDRV_PCM_HW_PARAM_FORMAT); + snd_mask_leave(m, pcm_format); + + i = hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_CHANNELS); + snd_interval_setinteger(i); + i->min = i->max = channels; + + i = hw_param_interval(¶ms, SNDRV_PCM_HW_PARAM_RATE); + snd_interval_setinteger(i); + i->min = i->max = cur_rate; + + pm_runtime_barrier(&chip->intf[0]->dev); + snd_usb_autoresume(chip); + + ret = snd_usb_hw_params(subs, ¶ms); + if (ret < 0) + goto put_suspend; + + if (!atomic_read(&chip->shutdown)) { + ret = snd_usb_lock_shutdown(chip); + if (ret < 0) + goto detach_ep; + + if (subs->sync_endpoint) { + ret = snd_usb_endpoint_prepare(chip, subs->sync_endpoint); + if (ret < 0) + goto unlock; + } + + ret = snd_usb_endpoint_prepare(chip, subs->data_endpoint); + if (ret < 0) + goto unlock; + + snd_usb_unlock_shutdown(chip); + + dev_dbg(uaudio_qdev->data->dev, + "selected %s iface:%d altsetting:%d datainterval:%dus\n", + subs->direction ? "capture" : "playback", + subs->cur_audiofmt->iface, subs->cur_audiofmt->altsetting, + (1 << subs->cur_audiofmt->datainterval) * + (subs->dev->speed >= USB_SPEED_HIGH ? + BUS_INTERVAL_HIGHSPEED_AND_ABOVE : + BUS_INTERVAL_FULL_SPEED)); + } + + return 0; + +unlock: + snd_usb_unlock_shutdown(chip); + +detach_ep: + snd_usb_hw_free(subs); + +put_suspend: + snd_usb_autosuspend(chip); + + return ret; +} + +/* returns usb hcd sysdev */ +static struct device *usb_get_usb_backend(struct usb_device *udev) +{ + if (udev->bus->sysdev && udev->bus->sysdev->of_node) + return udev->bus->sysdev; + + return NULL; +} + +/** + * uaudio_transfer_buffer_setup() - fetch and populate xfer buffer params + * @subs: usb substream + * @xfer_buf: xfer buf to be allocated + * @xfer_buf_len: size of allocation + * @mem_info: QMI response info + * + * Allocates and maps the transfer buffers that will be utilized by the + * audio DSP. Will populate the information in the QMI response that is + * sent back to the stream enable request. + * + */ +static int uaudio_transfer_buffer_setup(struct snd_usb_substream *subs, + u8 *xfer_buf, u32 xfer_buf_len, + struct mem_info_v01 *mem_info) +{ + struct sg_table xfer_buf_sgt; + phys_addr_t xfer_buf_pa; + u32 len = xfer_buf_len; + bool dma_coherent; + unsigned long va; + u32 remainder; + u32 mult; + int ret; + + dma_coherent = dev_is_dma_coherent(subs->dev->bus->sysdev); + + /* xfer buffer, multiple of 4K only */ + if (!len) + len = PAGE_SIZE; + + mult = len / PAGE_SIZE; + remainder = len % PAGE_SIZE; + len = mult * PAGE_SIZE; + len += remainder ? PAGE_SIZE : 0; + + if (len > MAX_XFER_BUFF_LEN) { + dev_err(uaudio_qdev->data->dev, + "req buf len %d > max buf len %lu, setting %lu\n", + len, MAX_XFER_BUFF_LEN, MAX_XFER_BUFF_LEN); + len = MAX_XFER_BUFF_LEN; + } + + xfer_buf = usb_alloc_coherent(subs->dev, len, GFP_KERNEL, &xfer_buf_pa); + if (!xfer_buf) + return -ENOMEM; + + dma_get_sgtable(subs->dev->bus->sysdev, &xfer_buf_sgt, xfer_buf, + xfer_buf_pa, len); + va = uaudio_iommu_map(MEM_XFER_BUF, dma_coherent, xfer_buf_pa, len, + &xfer_buf_sgt); + if (!va) { + ret = -ENOMEM; + goto unmap_sync; + } + + mem_info->pa = xfer_buf_pa; + mem_info->size = len; + mem_info->va = PREPEND_SID_TO_IOVA(va, uaudio_qdev->data->sid); + sg_free_table(&xfer_buf_sgt); + + return 0; + +unmap_sync: + usb_free_coherent(subs->dev, len, xfer_buf, xfer_buf_pa); + + return ret; +} + +/** + * uaudio_endpoint_setup() - fetch and populate endpoint params + * @subs: usb substream + * @endpoint: usb endpoint to add + * @card_num: uadev index + * @mem_info: QMI response info + * @ep_desc: QMI ep desc response field + * + * Initialize the USB endpoint being used for a particular USB + * stream. Will request XHCI sideband to reserve the EP for + * offloading as well as populating the QMI response with the + * transfer ring parameters. + * + */ +static phys_addr_t uaudio_endpoint_setup(struct snd_usb_substream *subs, + struct snd_usb_endpoint *endpoint, int card_num, + struct mem_info_v01 *mem_info, + struct usb_endpoint_descriptor_v01 *ep_desc) +{ + struct usb_host_endpoint *ep; + phys_addr_t tr_pa = 0; + struct sg_table *sgt; + bool dma_coherent; + unsigned long va; + struct page *pg; + int ret; + + dma_coherent = dev_is_dma_coherent(subs->dev->bus->sysdev); + + ep = usb_pipe_endpoint(subs->dev, endpoint->pipe); + if (!ep) { + dev_err(uaudio_qdev->data->dev, "data ep # %d context is null\n", + subs->data_endpoint->ep_num); + goto exit; + } + + memcpy(ep_desc, &ep->desc, sizeof(ep->desc)); + + ret = xhci_sideband_add_endpoint(uadev[card_num].sb, ep); + if (ret < 0) { + dev_err(&subs->dev->dev, + "failed to add data ep to sideband\n"); + ret = -ENODEV; + goto exit; + } + + sgt = xhci_sideband_get_endpoint_buffer(uadev[card_num].sb, ep); + if (!sgt) { + dev_err(&subs->dev->dev, + "failed to get data ep ring address\n"); + ret = -ENODEV; + goto remove_ep; + } + + pg = sg_page(sgt->sgl); + tr_pa = page_to_phys(pg); + mem_info->pa = sg_dma_address(sgt->sgl); + sg_free_table(sgt); + + /* data transfer ring */ + va = uaudio_iommu_map(MEM_XFER_RING, dma_coherent, tr_pa, + PAGE_SIZE, NULL); + if (!va) { + ret = -ENOMEM; + goto clear_pa; + } + + mem_info->va = PREPEND_SID_TO_IOVA(va, uaudio_qdev->data->sid); + mem_info->size = PAGE_SIZE; + + return 0; + +clear_pa: + mem_info->pa = 0; +remove_ep: + xhci_sideband_remove_endpoint(uadev[card_num].sb, ep); +exit: + return ret; +} + +/** + * uaudio_event_ring_setup() - fetch and populate event ring params + * @subs: usb substream + * @card_num: uadev index + * @mem_info: QMI response info + * + * Register secondary interrupter to XHCI and fetch the event buffer info + * and populate the information into the QMI response. + * + */ +static int uaudio_event_ring_setup(struct snd_usb_substream *subs, + int card_num, struct mem_info_v01 *mem_info) +{ + struct sg_table *sgt; + phys_addr_t er_pa; + bool dma_coherent; + unsigned long va; + struct page *pg; + int ret; + + dma_coherent = dev_is_dma_coherent(subs->dev->bus->sysdev); + er_pa = 0; + + /* event ring */ + ret = xhci_sideband_create_interrupter(uadev[card_num].sb, 1, false, + 0, uaudio_qdev->data->intr_num); + if (ret < 0) { + dev_err(&subs->dev->dev, "failed to fetch interrupter\n"); + goto exit; + } + + sgt = xhci_sideband_get_event_buffer(uadev[card_num].sb); + if (!sgt) { + dev_err(&subs->dev->dev, + "failed to get event ring address\n"); + ret = -ENODEV; + goto remove_interrupter; + } + + pg = sg_page(sgt->sgl); + er_pa = page_to_phys(pg); + mem_info->pa = sg_dma_address(sgt->sgl); + sg_free_table(sgt); + + va = uaudio_iommu_map(MEM_EVENT_RING, dma_coherent, er_pa, + PAGE_SIZE, NULL); + if (!va) { + ret = -ENOMEM; + goto clear_pa; + } + + mem_info->va = PREPEND_SID_TO_IOVA(va, uaudio_qdev->data->sid); + mem_info->size = PAGE_SIZE; + + return 0; + +clear_pa: + mem_info->pa = 0; +remove_interrupter: + xhci_sideband_remove_interrupter(uadev[card_num].sb); +exit: + return ret; +} + +/** + * uaudio_populate_uac_desc() - parse UAC parameters and populate QMI resp + * @subs: usb substream + * @resp: QMI response buffer + * + * Parses information specified within UAC descriptors which explain the + * sample parameters that the device expects. This information is populated + * to the QMI response sent back to the audio DSP. + * + */ +static int uaudio_populate_uac_desc(struct snd_usb_substream *subs, + struct qmi_uaudio_stream_resp_msg_v01 *resp) +{ + struct usb_interface_descriptor *altsd; + struct usb_host_interface *alts; + struct usb_interface *iface; + int protocol; + + iface = usb_ifnum_to_if(subs->dev, subs->cur_audiofmt->iface); + if (!iface) { + dev_err(&subs->dev->dev, "interface # %d does not exist\n", + subs->cur_audiofmt->iface); + return -ENODEV; + } + + alts = &iface->altsetting[subs->cur_audiofmt->altset_idx]; + altsd = get_iface_desc(alts); + protocol = altsd->bInterfaceProtocol; + + if (protocol == UAC_VERSION_1) { + struct uac1_as_header_descriptor *as; + + as = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, + UAC_AS_GENERAL); + if (!as) { + dev_err(&subs->dev->dev, + "%u:%d : no UAC_AS_GENERAL desc\n", + subs->cur_audiofmt->iface, + subs->cur_audiofmt->altset_idx); + return -ENODEV; + } + + resp->data_path_delay = as->bDelay; + resp->data_path_delay_valid = 1; + + resp->usb_audio_subslot_size = subs->cur_audiofmt->fmt_sz; + resp->usb_audio_subslot_size_valid = 1; + + resp->usb_audio_spec_revision = le16_to_cpu(0x0100); + resp->usb_audio_spec_revision_valid = 1; + } else if (protocol == UAC_VERSION_2) { + resp->usb_audio_subslot_size = subs->cur_audiofmt->fmt_sz; + resp->usb_audio_subslot_size_valid = 1; + + resp->usb_audio_spec_revision = le16_to_cpu(0x0200); + resp->usb_audio_spec_revision_valid = 1; + } else if (protocol == UAC_VERSION_3) { + if (iface->intf_assoc->bFunctionSubClass == + UAC3_FUNCTION_SUBCLASS_FULL_ADC_3_0) { + dev_err(&subs->dev->dev, + "full adc is not supported\n"); + return -EINVAL; + } + + switch (le16_to_cpu(get_endpoint(alts, 0)->wMaxPacketSize)) { + case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_16: + case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_16: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_16: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_16: { + resp->usb_audio_subslot_size = 0x2; + break; + } + + case UAC3_BADD_EP_MAXPSIZE_SYNC_MONO_24: + case UAC3_BADD_EP_MAXPSIZE_SYNC_STEREO_24: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_MONO_24: + case UAC3_BADD_EP_MAXPSIZE_ASYNC_STEREO_24: { + resp->usb_audio_subslot_size = 0x3; + break; + } + + default: + dev_err(&subs->dev->dev, + "%d: %u: Invalid wMaxPacketSize\n", + subs->cur_audiofmt->iface, + subs->cur_audiofmt->altset_idx); + return -EINVAL; + } + resp->usb_audio_subslot_size_valid = 1; + } else { + dev_err(&subs->dev->dev, "unknown protocol version %x\n", + protocol); + return -ENODEV; + } + + memcpy(&resp->std_as_opr_intf_desc, &alts->desc, sizeof(alts->desc)); + + return 0; +} + +/** + * prepare_qmi_response() - prepare stream enable response + * @subs: usb substream + * @req_msg: QMI request message + * @resp: QMI response buffer + * @info_idx: usb interface array index + * + * Prepares the QMI response for a USB QMI stream enable request. Will parse + * out the parameters within the stream enable request, in order to match + * requested audio profile to the ones exposed by the USB device connected. + * + * In addition, will fetch the XHCI transfer resources needed for the handoff to + * happen. This includes, transfer ring and buffer addresses and secondary event + * ring address. These parameters will be communicated as part of the USB QMI + * stream enable response. + * + */ +static int prepare_qmi_response(struct snd_usb_substream *subs, + struct qmi_uaudio_stream_req_msg_v01 *req_msg, + struct qmi_uaudio_stream_resp_msg_v01 *resp, int info_idx) +{ + struct q6usb_offload *data; + u32 xfer_buf_len; + int pcm_dev_num; + int card_num; + u8 *xfer_buf; + int ret; + + pcm_dev_num = (req_msg->usb_token & QMI_STREAM_REQ_DEV_NUM_MASK) >> 8; + xfer_buf_len = req_msg->xfer_buff_size; + card_num = uaudio_qdev->last_card_num; + + if (!uadev[card_num].ctrl_intf) { + dev_err(&subs->dev->dev, "audio ctrl intf info not cached\n"); + ret = -ENODEV; + goto err; + } + + ret = uaudio_populate_uac_desc(subs, resp); + if (ret < 0) + goto err; + + resp->slot_id = subs->dev->slot_id; + resp->slot_id_valid = 1; + + data = snd_soc_usb_find_priv_data(usb_get_usb_backend(subs->dev)); + if (!data) + goto err; + + uaudio_qdev->data = data; + + resp->std_as_opr_intf_desc_valid = 1; + ret = uaudio_endpoint_setup(subs, subs->data_endpoint, card_num, + &resp->xhci_mem_info.tr_data, + &resp->std_as_data_ep_desc); + if (ret < 0) + goto err; + + resp->std_as_data_ep_desc_valid = 1; + + if (subs->sync_endpoint) { + ret = uaudio_endpoint_setup(subs, subs->sync_endpoint, card_num, + &resp->xhci_mem_info.tr_sync, + &resp->std_as_sync_ep_desc); + if (ret < 0) + goto drop_data_ep; + + resp->std_as_sync_ep_desc_valid = 1; + } + + resp->interrupter_num_valid = 1; + resp->controller_num_valid = 0; + ret = usb_get_controller_id(subs->dev); + if (ret >= 0) { + resp->controller_num = ret; + resp->controller_num_valid = 1; + } + + /* event ring */ + ret = uaudio_event_ring_setup(subs, card_num, + &resp->xhci_mem_info.evt_ring); + if (ret < 0) + goto drop_sync_ep; + + uaudio_qdev->er_mapped = true; + resp->interrupter_num = xhci_sideband_interrupter_id(uadev[card_num].sb); + + resp->speed_info = get_speed_info(subs->dev->speed); + if (resp->speed_info == USB_QMI_DEVICE_SPEED_INVALID_V01) { + ret = -ENODEV; + goto free_sec_ring; + } + + resp->speed_info_valid = 1; + + ret = uaudio_transfer_buffer_setup(subs, xfer_buf, req_msg->xfer_buff_size, + &resp->xhci_mem_info.xfer_buff); + if (ret < 0) { + ret = -ENOMEM; + goto free_sec_ring; + } + + resp->xhci_mem_info_valid = 1; + + if (!atomic_read(&uadev[card_num].in_use)) { + kref_init(&uadev[card_num].kref); + init_waitqueue_head(&uadev[card_num].disconnect_wq); + uadev[card_num].num_intf = + subs->dev->config->desc.bNumInterfaces; + uadev[card_num].info = kcalloc(uadev[card_num].num_intf, + sizeof(struct intf_info), GFP_KERNEL); + if (!uadev[card_num].info) { + ret = -ENOMEM; + goto unmap_er; + } + uadev[card_num].udev = subs->dev; + atomic_set(&uadev[card_num].in_use, 1); + } else { + kref_get(&uadev[card_num].kref); + } + + uadev[card_num].usb_core_id = resp->controller_num; + + /* cache intf specific info to use it for unmap and free xfer buf */ + uadev[card_num].info[info_idx].data_xfer_ring_va = + IOVA_MASK(resp->xhci_mem_info.tr_data.va); + uadev[card_num].info[info_idx].data_xfer_ring_size = PAGE_SIZE; + uadev[card_num].info[info_idx].sync_xfer_ring_va = + IOVA_MASK(resp->xhci_mem_info.tr_sync.va); + uadev[card_num].info[info_idx].sync_xfer_ring_size = PAGE_SIZE; + uadev[card_num].info[info_idx].xfer_buf_va = + IOVA_MASK(resp->xhci_mem_info.xfer_buff.va); + uadev[card_num].info[info_idx].xfer_buf_pa = + resp->xhci_mem_info.xfer_buff.pa; + uadev[card_num].info[info_idx].xfer_buf_size = + resp->xhci_mem_info.xfer_buff.size; + uadev[card_num].info[info_idx].data_ep_pipe = subs->data_endpoint ? + subs->data_endpoint->pipe : 0; + uadev[card_num].info[info_idx].sync_ep_pipe = subs->sync_endpoint ? + subs->sync_endpoint->pipe : 0; + uadev[card_num].info[info_idx].xfer_buf = xfer_buf; + uadev[card_num].info[info_idx].pcm_card_num = card_num; + uadev[card_num].info[info_idx].pcm_dev_num = pcm_dev_num; + uadev[card_num].info[info_idx].direction = subs->direction; + uadev[card_num].info[info_idx].intf_num = subs->cur_audiofmt->iface; + uadev[card_num].info[info_idx].in_use = true; + + set_bit(card_num, &uaudio_qdev->card_slot); + + return 0; + +unmap_er: + uaudio_iommu_unmap(MEM_EVENT_RING, IOVA_BASE, PAGE_SIZE, PAGE_SIZE); +free_sec_ring: + xhci_sideband_remove_interrupter(uadev[card_num].sb); +drop_sync_ep: + if (subs->sync_endpoint) { + uaudio_iommu_unmap(MEM_XFER_RING, + IOVA_MASK(resp->xhci_mem_info.tr_sync.va), + PAGE_SIZE, PAGE_SIZE); + xhci_sideband_remove_endpoint(uadev[card_num].sb, + usb_pipe_endpoint(subs->dev, subs->sync_endpoint->pipe)); + } +drop_data_ep: + uaudio_iommu_unmap(MEM_XFER_RING, IOVA_MASK(resp->xhci_mem_info.tr_data.va), + PAGE_SIZE, PAGE_SIZE); + xhci_sideband_remove_endpoint(uadev[card_num].sb, + usb_pipe_endpoint(subs->dev, subs->data_endpoint->pipe)); + +err: + return ret; +} + +/** + * handle_uaudio_stream_req() - handle stream enable/disable request + * @handle: QMI client handle + * @sq: qrtr socket + * @txn: QMI transaction context + * @decoded_msg: decoded QMI message + * + * Main handler for the QMI stream enable/disable requests. This executes the + * corresponding enable/disable stream apis, respectively. + * + */ +static void handle_uaudio_stream_req(struct qmi_handle *handle, + struct sockaddr_qrtr *sq, + struct qmi_txn *txn, + const void *decoded_msg) +{ + struct qmi_uaudio_stream_req_msg_v01 *req_msg; + struct qmi_uaudio_stream_resp_msg_v01 resp = {{0}, 0}; + struct uaudio_qmi_svc *svc = uaudio_svc; + struct snd_usb_audio *chip = NULL; + struct snd_usb_substream *subs; + struct usb_host_endpoint *ep; + int datainterval = -EINVAL; + int info_idx = -EINVAL; + struct intf_info *info; + u8 pcm_card_num; + u8 pcm_dev_num; + u8 direction; + int ret = 0; + + if (!svc->client_connected) { + svc->client_sq = *sq; + svc->client_connected = true; + } + + mutex_lock(&qdev_mutex); + req_msg = (struct qmi_uaudio_stream_req_msg_v01 *)decoded_msg; + if (!req_msg->audio_format_valid || !req_msg->bit_rate_valid || + !req_msg->number_of_ch_valid || !req_msg->xfer_buff_size_valid) { + ret = -EINVAL; + goto response; + } + + if (!uaudio_qdev) { + ret = -EINVAL; + goto response; + } + + direction = (req_msg->usb_token & QMI_STREAM_REQ_DIRECTION); + pcm_dev_num = (req_msg->usb_token & QMI_STREAM_REQ_DEV_NUM_MASK) >> 8; + pcm_card_num = req_msg->enable ? uaudio_qdev->last_card_num : + ffs(uaudio_qdev->card_slot) - 1; + if (pcm_card_num >= SNDRV_CARDS) { + ret = -EINVAL; + goto response; + } + + if (req_msg->audio_format > USB_QMI_PCM_FORMAT_U32_BE) { + ret = -EINVAL; + goto response; + } + + subs = find_substream(pcm_card_num, pcm_dev_num, direction); + chip = uadev[pcm_card_num].chip; + if (!subs || !chip || atomic_read(&chip->shutdown)) { + ret = -ENODEV; + goto response; + } + + info_idx = info_idx_from_ifnum(pcm_card_num, subs->cur_audiofmt ? + subs->cur_audiofmt->iface : -1, req_msg->enable); + if (atomic_read(&chip->shutdown) || !subs->stream || !subs->stream->pcm + || !subs->stream->chip) { + ret = -ENODEV; + goto response; + } + + if (req_msg->enable) { + if (info_idx < 0 || chip->system_suspend) { + ret = -EBUSY; + goto response; + } + } + + if (req_msg->service_interval_valid) { + ret = get_data_interval_from_si(subs, + req_msg->service_interval); + if (ret == -EINVAL) + goto response; + + datainterval = ret; + } + + uadev[pcm_card_num].ctrl_intf = chip->ctrl_intf; + + if (req_msg->enable) { + ret = enable_audio_stream(subs, + map_pcm_format(req_msg->audio_format), + req_msg->number_of_ch, req_msg->bit_rate, + datainterval); + + if (!ret) + ret = prepare_qmi_response(subs, req_msg, &resp, + info_idx); + } else { + info = &uadev[pcm_card_num].info[info_idx]; + if (info->data_ep_pipe) { + ep = usb_pipe_endpoint(uadev[pcm_card_num].udev, + info->data_ep_pipe); + if (ep) + xhci_sideband_stop_endpoint(uadev[pcm_card_num].sb, + ep); + xhci_sideband_remove_endpoint(uadev[pcm_card_num].sb, ep); + info->data_ep_pipe = 0; + } + + if (info->sync_ep_pipe) { + ep = usb_pipe_endpoint(uadev[pcm_card_num].udev, + info->sync_ep_pipe); + if (ep) + xhci_sideband_stop_endpoint(uadev[pcm_card_num].sb, + ep); + xhci_sideband_remove_endpoint(uadev[pcm_card_num].sb, ep); + info->sync_ep_pipe = 0; + } + + disable_audio_stream(subs); + } + +response: + if (!req_msg->enable && ret != -EINVAL && ret != -ENODEV) { + mutex_lock(&chip->mutex); + if (info_idx >= 0) { + info = &uadev[pcm_card_num].info[info_idx]; + uaudio_dev_intf_cleanup( + uadev[pcm_card_num].udev, + info); + } + if (atomic_read(&uadev[pcm_card_num].in_use)) + kref_put(&uadev[pcm_card_num].kref, + uaudio_dev_release); + mutex_unlock(&chip->mutex); + } + mutex_unlock(&qdev_mutex); + + resp.usb_token = req_msg->usb_token; + resp.usb_token_valid = 1; + resp.internal_status = ret; + resp.internal_status_valid = 1; + resp.status = ret ? USB_QMI_STREAM_REQ_FAILURE_V01 : ret; + resp.status_valid = 1; + ret = qmi_send_response(svc->uaudio_svc_hdl, sq, txn, + QMI_UAUDIO_STREAM_RESP_V01, + QMI_UAUDIO_STREAM_RESP_MSG_V01_MAX_MSG_LEN, + qmi_uaudio_stream_resp_msg_v01_ei, &resp); +} + +static struct qmi_msg_handler uaudio_stream_req_handlers = { + .type = QMI_REQUEST, + .msg_id = QMI_UAUDIO_STREAM_REQ_V01, + .ei = qmi_uaudio_stream_req_msg_v01_ei, + .decoded_size = QMI_UAUDIO_STREAM_REQ_MSG_V01_MAX_MSG_LEN, + .fn = handle_uaudio_stream_req, +}; + +/** + * qc_usb_audio_offload_init_qmi_dev() - initializes qmi dev + * + * Initializes the USB qdev, which is used to carry information pertaining to + * the offloading resources. This device is freed only when there are no longer + * any offloading candidates. (i.e, when all audio devices are disconnected) + * + */ +static int qc_usb_audio_offload_init_qmi_dev(void) +{ + uaudio_qdev = kzalloc(sizeof(struct uaudio_qmi_dev), + GFP_KERNEL); + if (!uaudio_qdev) + return -ENOMEM; + + /* initialize xfer ring and xfer buf iova list */ + INIT_LIST_HEAD(&uaudio_qdev->xfer_ring_list); + uaudio_qdev->curr_xfer_ring_iova = IOVA_XFER_RING_BASE; + uaudio_qdev->xfer_ring_iova_size = + IOVA_XFER_RING_MAX - IOVA_XFER_RING_BASE; + + INIT_LIST_HEAD(&uaudio_qdev->xfer_buf_list); + uaudio_qdev->curr_xfer_buf_iova = IOVA_XFER_BUF_BASE; + uaudio_qdev->xfer_buf_iova_size = + IOVA_XFER_BUF_MAX - IOVA_XFER_BUF_BASE; + + return 0; +} + +static int qc_usb_audio_offload_find_avail_pcm(struct snd_usb_audio *chip) +{ + struct snd_usb_stream *as; + struct snd_usb_substream *subs; + + list_for_each_entry(as, &chip->pcm_list, list) { + subs = &as->substream[SNDRV_PCM_STREAM_PLAYBACK]; + /* + * There is at least one playback path available - currently + * support offloading on playback path only. + */ + if (subs->ep_num) + return as->pcm->device; + } + + return -1; +} + +/** + * qc_usb_audio_offload_probe() - platform op connect handler + * @chip: USB SND device + * + * Platform connect handler when a USB SND device is detected. Will + * notify SOC USB about the connection to enable the USB ASoC backend + * and populate internal USB chip array. + * + */ +static void qc_usb_audio_offload_probe(struct snd_usb_audio *chip) +{ + struct usb_device *udev = chip->dev; + struct snd_soc_usb_device *sdev; + struct xhci_sideband *sb; + + if (qc_usb_audio_offload_find_avail_pcm(chip) < 0) + return; + + /* + * If there is no priv_data, the connected device is on a USB bus + * that doesn't support offloading. Avoid populating entries for + * this device. + */ + if (!snd_soc_usb_find_priv_data(usb_get_usb_backend(udev))) + return; + + mutex_lock(&qdev_mutex); + mutex_lock(&chip->mutex); + if (!uadev[chip->card->number].chip) { + sdev = kzalloc(sizeof(*sdev), GFP_KERNEL); + if (!sdev) + goto exit; + + sb = xhci_sideband_register(udev); + if (!sb) + goto free_sdev; + } else { + sb = uadev[chip->card->number].sb; + sdev = uadev[chip->card->number].sdev; + } + + if (!uaudio_qdev) + qc_usb_audio_offload_init_qmi_dev(); + + atomic_inc(&uaudio_qdev->qdev_in_use); + + uadev[chip->card->number].sb = sb; + uadev[chip->card->number].chip = chip; + + sdev->pcm_idx = qc_usb_audio_offload_find_avail_pcm(chip); + sdev->card_idx = chip->card->number; + sdev->chip_idx = chip->index; + uadev[chip->card->number].sdev = sdev; + + uaudio_qdev->last_card_num = chip->card->number; + snd_soc_usb_connect(usb_get_usb_backend(udev), sdev); + + mutex_unlock(&chip->mutex); + mutex_unlock(&qdev_mutex); + + return; + +free_sdev: + kfree(sdev); +exit: + mutex_unlock(&chip->mutex); + mutex_unlock(&qdev_mutex); +} + +/** + * qc_usb_audio_cleanup_qmi_dev() - release qmi device + * + * Frees the USB qdev. Only occurs when there are no longer any potential + * devices that can utilize USB audio offloading. + * + */ +static void qc_usb_audio_cleanup_qmi_dev(void) +{ + kfree(uaudio_qdev); + uaudio_qdev = NULL; +} + +/** + * qc_usb_audio_offload_disconnect() - platform op disconnect handler + * @chip: USB SND device + * + * Platform disconnect handler. Will ensure that any pending stream is + * halted by issuing a QMI disconnect indication packet to the adsp. + * + */ +static void qc_usb_audio_offload_disconnect(struct snd_usb_audio *chip) +{ + struct qmi_uaudio_stream_ind_msg_v01 disconnect_ind = {0}; + struct uaudio_qmi_svc *svc = uaudio_svc; + struct uaudio_dev *dev; + int card_num; + int ret; + + if (!chip) + return; + + card_num = chip->card->number; + if (card_num >= SNDRV_CARDS) + return; + + mutex_lock(&qdev_mutex); + mutex_lock(&chip->mutex); + dev = &uadev[card_num]; + + /* Device has already been cleaned up, or never populated */ + if (!dev->chip) { + mutex_unlock(&qdev_mutex); + mutex_unlock(&chip->mutex); + return; + } + + /* cleaned up already */ + if (!dev->udev) + goto done; + + if (atomic_read(&dev->in_use)) { + mutex_unlock(&chip->mutex); + mutex_unlock(&qdev_mutex); + dev_dbg(uaudio_qdev->data->dev, + "sending qmi indication disconnect\n"); + disconnect_ind.dev_event = USB_QMI_DEV_DISCONNECT_V01; + disconnect_ind.slot_id = dev->udev->slot_id; + disconnect_ind.controller_num = dev->usb_core_id; + disconnect_ind.controller_num_valid = 1; + ret = qmi_send_indication(svc->uaudio_svc_hdl, &svc->client_sq, + QMI_UAUDIO_STREAM_IND_V01, + QMI_UAUDIO_STREAM_IND_MSG_V01_MAX_MSG_LEN, + qmi_uaudio_stream_ind_msg_v01_ei, + &disconnect_ind); + if (ret < 0) + dev_err(uaudio_qdev->data->dev, + "qmi send failed with err: %d\n", ret); + + ret = wait_event_interruptible_timeout(dev->disconnect_wq, + !atomic_read(&dev->in_use), + msecs_to_jiffies(DEV_RELEASE_WAIT_TIMEOUT)); + if (!ret) { + dev_err(uaudio_qdev->data->dev, + "timeout while waiting for dev_release\n"); + atomic_set(&dev->in_use, 0); + } else if (ret < 0) { + dev_err(uaudio_qdev->data->dev, + "failed with ret %d\n", ret); + atomic_set(&dev->in_use, 0); + } + mutex_lock(&qdev_mutex); + mutex_lock(&chip->mutex); + } + + uaudio_dev_cleanup(dev); +done: + /* + * If num_interfaces == 1, the last USB SND interface is being removed. + * This is to accommodate for devices w/ multiple UAC functions. + */ + if (chip->num_interfaces == 1) { + snd_soc_usb_disconnect(usb_get_usb_backend(chip->dev), dev->sdev); + xhci_sideband_unregister(dev->sb); + dev->chip = NULL; + kfree(dev->sdev); + dev->sdev = NULL; + } + mutex_unlock(&chip->mutex); + + atomic_dec(&uaudio_qdev->qdev_in_use); + if (!atomic_read(&uaudio_qdev->qdev_in_use)) + qc_usb_audio_cleanup_qmi_dev(); + + mutex_unlock(&qdev_mutex); +} + +/** + * qc_usb_audio_offload_suspend() - USB offload PM suspend handler + * @intf: USB interface + * @message: suspend type + * + * PM suspend handler to ensure that the USB offloading driver is able to stop + * any pending traffic, so that the bus can be suspended. + * + */ +static void qc_usb_audio_offload_suspend(struct usb_interface *intf, + pm_message_t message) +{ + struct qmi_uaudio_stream_ind_msg_v01 disconnect_ind = {0}; + struct snd_usb_audio *chip = usb_get_intfdata(intf); + struct uaudio_qmi_svc *svc = uaudio_svc; + struct uaudio_dev *dev; + int card_num; + int ret; + + if (!chip) + return; + + card_num = chip->card->number; + if (card_num >= SNDRV_CARDS) + return; + + + mutex_lock(&chip->mutex); + dev = &uadev[card_num]; + + if (atomic_read(&dev->in_use)) { + mutex_unlock(&chip->mutex); + dev_dbg(uaudio_qdev->data->dev, "sending qmi indication suspend\n"); + disconnect_ind.dev_event = USB_QMI_DEV_DISCONNECT_V01; + disconnect_ind.slot_id = dev->udev->slot_id; + disconnect_ind.controller_num = dev->usb_core_id; + disconnect_ind.controller_num_valid = 1; + ret = qmi_send_indication(svc->uaudio_svc_hdl, &svc->client_sq, + QMI_UAUDIO_STREAM_IND_V01, + QMI_UAUDIO_STREAM_IND_MSG_V01_MAX_MSG_LEN, + qmi_uaudio_stream_ind_msg_v01_ei, + &disconnect_ind); + if (ret < 0) + dev_err(uaudio_qdev->data->dev, + "qmi send failed with err: %d\n", ret); + + ret = wait_event_interruptible_timeout(dev->disconnect_wq, + !atomic_read(&dev->in_use), + msecs_to_jiffies(DEV_RELEASE_WAIT_TIMEOUT)); + if (!ret) { + dev_err(uaudio_qdev->data->dev, + "timeout while waiting for dev_release\n"); + atomic_set(&dev->in_use, 0); + } else if (ret < 0) { + dev_err(uaudio_qdev->data->dev, + "failed with ret %d\n", ret); + atomic_set(&dev->in_use, 0); + } + mutex_lock(&chip->mutex); + } + mutex_unlock(&chip->mutex); +} + +static struct snd_usb_platform_ops offload_ops = { + .connect_cb = qc_usb_audio_offload_probe, + .disconnect_cb = qc_usb_audio_offload_disconnect, + .suspend_cb = qc_usb_audio_offload_suspend, +}; + +static int __init qc_usb_audio_offload_init(void) +{ + struct uaudio_qmi_svc *svc; + int ret; + + svc = kzalloc(sizeof(struct uaudio_qmi_svc), GFP_KERNEL); + if (!svc) + return -ENOMEM; + + svc->uaudio_svc_hdl = kzalloc(sizeof(struct qmi_handle), GFP_KERNEL); + if (!svc->uaudio_svc_hdl) { + ret = -ENOMEM; + goto free_svc; + } + + ret = qmi_handle_init(svc->uaudio_svc_hdl, + QMI_UAUDIO_STREAM_REQ_MSG_V01_MAX_MSG_LEN, + &uaudio_svc_ops_options, + &uaudio_stream_req_handlers); + ret = qmi_add_server(svc->uaudio_svc_hdl, UAUDIO_STREAM_SERVICE_ID_V01, + UAUDIO_STREAM_SERVICE_VERS_V01, 0); + + uaudio_svc = svc; + + ret = snd_usb_register_platform_ops(&offload_ops); + if (ret < 0) + goto release_qmi; + + return 0; + +release_qmi: + qmi_handle_release(svc->uaudio_svc_hdl); +free_svc: + kfree(svc); + + return ret; +} + +static void __exit qc_usb_audio_offload_exit(void) +{ + struct uaudio_qmi_svc *svc = uaudio_svc; + int idx; + + /* + * Remove all connected devices after unregistering ops, to ensure + * that no further connect events will occur. The disconnect routine + * will issue the QMI disconnect indication, which results in the + * external DSP to stop issuing transfers. + */ + snd_usb_unregister_platform_ops(); + for (idx = 0; idx < SNDRV_CARDS; idx++) + qc_usb_audio_offload_disconnect(uadev[idx].chip); + + qmi_handle_release(svc->uaudio_svc_hdl); + kfree(svc); + uaudio_svc = NULL; +} + +module_init(qc_usb_audio_offload_init); +module_exit(qc_usb_audio_offload_exit); + +MODULE_DESCRIPTION("QC USB Audio Offloading"); +MODULE_LICENSE("GPL"); From patchwork Thu Aug 1 01:17:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816317 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 08A5BC3DA7F for ; Thu, 1 Aug 2024 01:29:43 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 56D13321F; Thu, 1 Aug 2024 03:28:34 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 56D13321F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475724; bh=3sxoQg8jL5IaN4d8lEApAPYeHMX+nF8dja08/OXP+9E=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=dsDzXkoyWloiFJjwRA1qXCtbpXq48r8Npto4uDkP2HZeDmJwJM8LK89n7xN/Bc7kS 67Mjdek7mTNQbotOjrb9C5RJVen63zXRBRpvCkBzxUQdPMs4RmBfduYUDL9IqAh1NB h9jmHL2DuupVwdM5Vvvq35TcnruHBbtWlO4sImdI= Received: by alsa1.perex.cz (Postfix, from userid 50401) id E344FF897C8; Thu, 1 Aug 2024 03:21:52 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 1480AF897CA; Thu, 1 Aug 2024 03:21:52 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id CB3D5F80579; Thu, 1 Aug 2024 03:18:34 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id A4EABF805E3 for ; Thu, 1 Aug 2024 03:17:57 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz A4EABF805E3 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=WzF/sN5F Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VEcnpD027258; Thu, 1 Aug 2024 01:17:49 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=vibiua+TD7RsuyU8D0c+UUkg XIC99JI0liYmNPVEw4Y=; b=WzF/sN5FjEDM3KnxvwCh4x3VkQ5zseDGUji7fyK+ 0jgU76XjuTUeATNacnkc0vRbF0nCjiQ9hdNZwXbkJx9nYItcAP/z1Bw+LDHJ/dvX 0bJMNvMAbe/AQ0pM6tEDT8yrROmvWpYO/bkUoGaPVO9e6TZOt+WBWMoncD1rRYxB +O6MF2PJUJ/BwZ5VrRCgNIREDB0I+RvuZEXWH4I9IJE6Q2iOMVP86uxlUAhMXhO/ nCnZUJW/+tNOGtDS+QAiVvEzeFCapDsUxlLtNzwM59I+qFvDQkdHHSYtsa3PIptz IMOtkgb12SyBTq06skQqx1K5oH6OQyRq7ak0Y3NgpYbfZQ== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40msnecwxs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:49 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA01.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711Hm8x026940 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:49 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; Wed, 31 Jul 2024 18:17:48 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 26/34] ALSA: usb-audio: qcom: Don't allow USB offload path if PCM device is in use Date: Wed, 31 Jul 2024 18:17:22 -0700 Message-ID: <20240801011730.4797-27-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: VvTcnckCrdHazjzN5_Fl5kLKPAn1TTPG X-Proofpoint-ORIG-GUID: VvTcnckCrdHazjzN5_Fl5kLKPAn1TTPG 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=999 priorityscore=1501 clxscore=1015 spamscore=0 mlxscore=0 bulkscore=0 suspectscore=0 impostorscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: K23YULCVBASYWBLXVYJ7ESWIHVLS6RVG X-Message-ID-Hash: K23YULCVBASYWBLXVYJ7ESWIHVLS6RVG 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: Add proper checks and updates to the USB substream once receiving a USB QMI stream enable request. If the substream is already in use from the non offload path, reject the stream enable request. In addition, update the USB substream opened parameter when enabling the offload path, so the non offload path can be blocked. Signed-off-by: Wesley Cheng --- sound/usb/qcom/qc_audio_offload.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c index 8b0913b7256b..3b46d05f1421 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -1460,12 +1460,17 @@ static void handle_uaudio_stream_req(struct qmi_handle *handle, goto response; } + mutex_lock(&chip->mutex); if (req_msg->enable) { - if (info_idx < 0 || chip->system_suspend) { + if (info_idx < 0 || chip->system_suspend || subs->opened) { ret = -EBUSY; + mutex_unlock(&chip->mutex); + goto response; } + subs->opened = 1; } + mutex_unlock(&chip->mutex); if (req_msg->service_interval_valid) { ret = get_data_interval_from_si(subs, @@ -1487,6 +1492,11 @@ static void handle_uaudio_stream_req(struct qmi_handle *handle, if (!ret) ret = prepare_qmi_response(subs, req_msg, &resp, info_idx); + if (ret < 0) { + mutex_lock(&chip->mutex); + subs->opened = 0; + mutex_unlock(&chip->mutex); + } } else { info = &uadev[pcm_card_num].info[info_idx]; if (info->data_ep_pipe) { @@ -1510,6 +1520,9 @@ static void handle_uaudio_stream_req(struct qmi_handle *handle, } disable_audio_stream(subs); + mutex_lock(&chip->mutex); + subs->opened = 0; + mutex_unlock(&chip->mutex); } response: From patchwork Thu Aug 1 01:17:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816092 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C6041C3DA64 for ; Thu, 1 Aug 2024 01:29:27 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 6ECE72972; Thu, 1 Aug 2024 03:28:18 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 6ECE72972 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475708; bh=1KK0FESbe7RqKMoXmJ8XnK8Hzx3VPUdD2ZcqPKdUwvM=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=L9+k6/rvZVmJ6F9V9BdLQShnaCsi/iEQm/voZxeSCbUNS9Cfvq7M600B3IzJP5qpt 1TqokJ5OdQJpAQ53WhUzpUKGWiin+WbxpIPYcmdOrkbLqrgHpWluLaO6LmxQxPu9XD br7hnEVV+4u/YdytUXl8hVhQlG/IEveSNrLnEvcM= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 8BC93F80601; Thu, 1 Aug 2024 03:21:50 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id D7956F897B7; Thu, 1 Aug 2024 03:21:49 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id B62EFF80579; Thu, 1 Aug 2024 03:18:34 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id A2B45F8057A for ; Thu, 1 Aug 2024 03:17:59 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz A2B45F8057A Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=p1Y3/Xw1 Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VExDuB015475; Thu, 1 Aug 2024 01:17:51 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=rbwA+4CfAzJdP9+8WfADluiT Ct8xILINDgo0lr0S/gw=; b=p1Y3/Xw1BtN8NzarqQNHexyRyF0nK82+mm/KtBy0 wJY3/7E2DYbkFc7tyHI1Ey6ojf0R9xBvLigAT2AHomrVs9bpxtWzM1Gc2YMYvFOm 5fuf+XYBknO1PyfvgaLheRVcgBPXJcCcHkgPcZYNgP2sOGJnXh+1JQuIDQQPXqOX HBO1ydyuaEiZZ4njsw23yssDjg/c48Rjwb408u2blY92p1W/zFpui7B3+8t9EG2g n1N0xtSIbxCkuPv7U56o4lYsmhSNJV1rFbZdP5KcaU0ccUlf+vOzkUiTWdwOlX6r UoBlBM/ZSYUopI6f2Gi34R7nY7EfqdPTae9nzxh9NLbssQ== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40mqw7d6kb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:50 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HnTh030378 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:49 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; Wed, 31 Jul 2024 18:17:48 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 27/34] ALSA: usb-audio: qcom: Use card and PCM index from QMI request Date: Wed, 31 Jul 2024 18:17:23 -0700 Message-ID: <20240801011730.4797-28-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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-ORIG-GUID: DXqhBxnuzIgYQ6unjkTIk8355QIFkqJ7 X-Proofpoint-GUID: DXqhBxnuzIgYQ6unjkTIk8355QIFkqJ7 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 mlxlogscore=999 spamscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1015 bulkscore=0 adultscore=0 suspectscore=0 malwarescore=0 phishscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: BAJZ55NLOW4EMGM7KZUVONY6AD5V3HJI X-Message-ID-Hash: BAJZ55NLOW4EMGM7KZUVONY6AD5V3HJI 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: Utilize the card and PCM index coming from the USB QMI stream request. This field follows what is set by the ASoC USB backend, and could potentially carry information about a specific device selected through the ASoC USB backend. The backend also has information about the last USB sound device plugged in, so it can choose to select the last device plugged in, accordingly. Signed-off-by: Wesley Cheng --- sound/usb/qcom/qc_audio_offload.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c index 3b46d05f1421..fc7beadfd0f9 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -106,8 +106,6 @@ struct uaudio_qmi_dev { bool er_mapped; /* reference count to number of possible consumers */ atomic_t qdev_in_use; - /* idx to last udev card number plugged in */ - unsigned int last_card_num; }; struct uaudio_dev { @@ -1240,7 +1238,7 @@ static int prepare_qmi_response(struct snd_usb_substream *subs, pcm_dev_num = (req_msg->usb_token & QMI_STREAM_REQ_DEV_NUM_MASK) >> 8; xfer_buf_len = req_msg->xfer_buff_size; - card_num = uaudio_qdev->last_card_num; + card_num = (req_msg->usb_token & QMI_STREAM_REQ_CARD_NUM_MASK) >> 16; if (!uadev[card_num].ctrl_intf) { dev_err(&subs->dev->dev, "audio ctrl intf info not cached\n"); @@ -1433,8 +1431,7 @@ static void handle_uaudio_stream_req(struct qmi_handle *handle, direction = (req_msg->usb_token & QMI_STREAM_REQ_DIRECTION); pcm_dev_num = (req_msg->usb_token & QMI_STREAM_REQ_DEV_NUM_MASK) >> 8; - pcm_card_num = req_msg->enable ? uaudio_qdev->last_card_num : - ffs(uaudio_qdev->card_slot) - 1; + pcm_card_num = (req_msg->usb_token & QMI_STREAM_REQ_CARD_NUM_MASK) >> 16; if (pcm_card_num >= SNDRV_CARDS) { ret = -EINVAL; goto response; @@ -1662,7 +1659,6 @@ static void qc_usb_audio_offload_probe(struct snd_usb_audio *chip) sdev->chip_idx = chip->index; uadev[chip->card->number].sdev = sdev; - uaudio_qdev->last_card_num = chip->card->number; snd_soc_usb_connect(usb_get_usb_backend(udev), sdev); mutex_unlock(&chip->mutex); From patchwork Thu Aug 1 01:17:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816095 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 98DB1C3DA64 for ; Thu, 1 Aug 2024 01:27:44 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id B74C12E09; Thu, 1 Aug 2024 03:26:43 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz B74C12E09 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475613; bh=XMhaUCkSnqDx18h11qUVr7SqBNhY24xfnSbafNQBVIM=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=eUsGouiIuobRBxRkxCJDg6Vk8MuaUfKKKgMYrZIOYvcj12fHkaBgrL5YDPE9euqH1 6Ka99ohNyG3k1XFNCDDv10Wqz847vWTcn9rCWE/0by1/7xx0rIAV8wEgWoYsTXMTGJ UCTyVVzEuPihusL6ezJ5mEJ9vmDu2rl8yyLp+l0E= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 42B5AF8970A; Thu, 1 Aug 2024 03:21:37 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 5CDD7F89701; Thu, 1 Aug 2024 03:21:37 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 1A302F80579; Thu, 1 Aug 2024 03:18:28 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 9AEE6F805B3 for ; Thu, 1 Aug 2024 03:17:59 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 9AEE6F805B3 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=l7/vQAH1 Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VMaRYW020785; Thu, 1 Aug 2024 01:17:50 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=9mCx5K9uuFBWfdU5cc8wiBIc qyuhsb5DvHLqc0vHpNc=; b=l7/vQAH1RlfMEpPfSl11G0M8+ctTWYM86ZM/OHH8 M5d7CsF/54HhGzAII3GgbU+mz5Obl+JhkrO+9/e4GVewp/GD9i5b1hXEWnLuYB/H J59eSQ6PmDoff9ZmhRFyfYiC7Pn9liiRaSBynmJHKmO6ZUjHetFtJHvjv2NGkkJr SX367Vq+m37lRJd4fdr3v+PCy6TAUSDwtrVb1swE5JZHH6IpXVk09fUWgCT6Jem2 lPzdd+GDDByhzWqWraxuViKp4Gt6DrSGa0Af6rQngVK/5jPpetEE3IxDFRakJgse k46DBNG5oE6YhUKA2iUBT/g1CQ85KUz3F5FRpbmxc/jjdQ== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qkv0t5d0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:50 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HnUv030382 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:49 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; Wed, 31 Jul 2024 18:17:49 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 28/34] ALSA: usb-audio: qcom: Populate PCM and USB chip information Date: Wed, 31 Jul 2024 18:17:24 -0700 Message-ID: <20240801011730.4797-29-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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-ORIG-GUID: Py0YmWBUQT9NBG-tETfb271iP34bjFAP X-Proofpoint-GUID: Py0YmWBUQT9NBG-tETfb271iP34bjFAP 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=818 clxscore=1015 adultscore=0 priorityscore=1501 malwarescore=0 mlxscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 suspectscore=0 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: OP5D44AQPJUQJBU6FAGR7A4QLT5UKYVZ X-Message-ID-Hash: OP5D44AQPJUQJBU6FAGR7A4QLT5UKYVZ 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: Currently, only the index to the USB SND card array is passed to the USB backend. Pass through more information, specifically the USB SND card number and the number of PCM devices available. This allows for the DPCM backend to determine what USB resources are available during situations, such as USB audio offloading. Signed-off-by: Wesley Cheng --- sound/usb/qcom/qc_audio_offload.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c index fc7beadfd0f9..d9320ebad617 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -168,6 +168,21 @@ enum usb_qmi_audio_format { USB_QMI_PCM_FORMAT_U32_BE, }; +static int usb_qmi_get_pcm_num(struct snd_usb_audio *chip, int direction) +{ + struct snd_usb_substream *subs = NULL; + struct snd_usb_stream *as; + int count = 0; + + list_for_each_entry(as, &chip->pcm_list, list) { + subs = &as->substream[direction]; + if (subs->ep_num) + count++; + } + + return count; +} + static enum usb_qmi_audio_device_speed_enum_v01 get_speed_info(enum usb_device_speed udev_speed) { @@ -1657,6 +1672,8 @@ static void qc_usb_audio_offload_probe(struct snd_usb_audio *chip) sdev->pcm_idx = qc_usb_audio_offload_find_avail_pcm(chip); sdev->card_idx = chip->card->number; sdev->chip_idx = chip->index; + sdev->num_playback = usb_qmi_get_pcm_num(chip, 0); + sdev->num_capture = usb_qmi_get_pcm_num(chip, 1); uadev[chip->card->number].sdev = sdev; snd_soc_usb_connect(usb_get_usb_backend(udev), sdev); From patchwork Thu Aug 1 01:17:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816320 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7401AC3DA7F for ; Thu, 1 Aug 2024 01:28:00 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 14E09314F; Thu, 1 Aug 2024 03:26:57 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 14E09314F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475627; bh=NRuiIlu8lgUc+S1jnXodmEqPqOT015bkTFgfa7XPHNM=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=Usy4A8ffud6ttdm0H/yENOzXyx7yKuqRin4bc2ile86WRbLr3+mzXlRXdD5Pe3l5O XBUsPKiBCNkCQN/VKyUjdIjSB+xj+Yd6uGgNSu7rzltuZCOb8bXH5V7uoLbug0Akh1 vBX2swNsgessdpZ9NVLoKXV5xyTuxyV2NKxLvBuw= Received: by alsa1.perex.cz (Postfix, from userid 50401) id E6AD2F89715; Thu, 1 Aug 2024 03:21:39 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 62F87F89733; Thu, 1 Aug 2024 03:21:39 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 18C20F80579; Thu, 1 Aug 2024 03:18:30 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id B3F77F805B4 for ; Thu, 1 Aug 2024 03:17:59 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz B3F77F805B4 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=l5af2AC6 Received: from pps.filterd (m0279867.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VNEe3P021006; Thu, 1 Aug 2024 01:17:50 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=05kfK5VRk611pE6C1mXp4OD7 /1NO71jq7pubqfYaHek=; b=l5af2AC6O+fBseAJeDU1A76Za6br5NvyYeCR9ySy IH4scFS3cXu2TFpv6MSCygtitd3C5zwXrbsArT8k/Pyab9xGTZsjDUNvaCn2VGS6 EZEDozclrMm6qGQaeCCD3tqnjHKgxPANJ8hx0kx6Oy/50gp0pihDAlx1RNAK/6Qu 5nF8LpjEZROsD9MlxP1RVG4PSn6XmNY4SA54VoMXhsMUsamAodvgnGD44rFSsf1Q DSHZAczT74qDkdVt4vH4ngo/KGx9edoC/gAy4dKAjv5DhUlK8MmzQdntoVz+V/8q ceyZW/8kvQcrGQeTnr6Jt+utGriaAzWvLRUisIjyfDOZ2A== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qkv0t5d1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:50 +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 4711HnIW026917 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:49 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; Wed, 31 Jul 2024 18:17:49 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 29/34] ALSA: usb-audio: qcom: Add USB offload route kcontrol Date: Wed, 31 Jul 2024 18:17:25 -0700 Message-ID: <20240801011730.4797-30-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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-ORIG-GUID: HxmKRQlER2wyYyiQR5ORg_ctlLn8Cgru X-Proofpoint-GUID: HxmKRQlER2wyYyiQR5ORg_ctlLn8Cgru 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 clxscore=1015 adultscore=0 priorityscore=1501 malwarescore=0 mlxscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 suspectscore=0 spamscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: PUCZ4NY6TJTS6QEGZBGPLRACQVT77OEU X-Message-ID-Hash: PUCZ4NY6TJTS6QEGZBGPLRACQVT77OEU 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: In order to allow userspace/applications know about USB offloading status, expose a sound kcontrol that fetches information about which sound card and PCM index the USB device is mapped to for supporting offloading. In the USB audio offloading framework, the ASoC BE DAI link is the entity responsible for registering to the SOC USB layer. It is expected for the USB SND offloading driver to add the kcontrol to the sound card associated with the USB audio device. An example output would look like: tinymix -D 1 get 'USB Offload Playback Route PCM#0' -1, -1 (range -1->255) This example signifies that there is no mapped ASoC path available for the USB SND device. tinymix -D 1 get 'USB Offload Playback Route PCM#0' 0, 0 (range -1->255) This example signifies that the offload path is available over ASoC sound card index#0 and PCM device#0. Signed-off-by: Wesley Cheng --- sound/usb/Kconfig | 10 +++ sound/usb/qcom/Makefile | 6 +- sound/usb/qcom/mixer_usb_offload.c | 101 +++++++++++++++++++++++++++++ sound/usb/qcom/mixer_usb_offload.h | 17 +++++ sound/usb/qcom/qc_audio_offload.c | 4 ++ 5 files changed, 137 insertions(+), 1 deletion(-) create mode 100644 sound/usb/qcom/mixer_usb_offload.c create mode 100644 sound/usb/qcom/mixer_usb_offload.h diff --git a/sound/usb/Kconfig b/sound/usb/Kconfig index 5cc3eaf53e6b..1228be3c1f83 100644 --- a/sound/usb/Kconfig +++ b/sound/usb/Kconfig @@ -176,6 +176,16 @@ config SND_BCD2000 To compile this driver as a module, choose M here: the module will be called snd-bcd2000. +config SND_USB_QC_OFFLOAD_MIXER + bool "Qualcomm USB Audio Offload mixer control" + help + Say Y to enable the Qualcomm USB audio offloading mixer controls. + This exposes an USB offload capable kcontrol to signal to + applications about which platform sound card can support USB + audio offload. This can potentially be used to fetch further + information about the offloading status from the platform sound + card. + config SND_USB_AUDIO_QMI tristate "Qualcomm Audio Offload driver" depends on QCOM_QMI_HELPERS && SND_USB_AUDIO && USB_XHCI_SIDEBAND && SND_SOC_USB diff --git a/sound/usb/qcom/Makefile b/sound/usb/qcom/Makefile index a81c9b28d484..eada5cd7b71f 100644 --- a/sound/usb/qcom/Makefile +++ b/sound/usb/qcom/Makefile @@ -1,2 +1,6 @@ snd-usb-audio-qmi-objs := usb_audio_qmi_v01.o qc_audio_offload.o -obj-$(CONFIG_SND_USB_AUDIO_QMI) += snd-usb-audio-qmi.o \ No newline at end of file +obj-$(CONFIG_SND_USB_AUDIO_QMI) += snd-usb-audio-qmi.o + +ifneq ($(CONFIG_SND_USB_QC_OFFLOAD_MIXER),) +snd-usb-audio-qmi-objs += mixer_usb_offload.o +endif \ No newline at end of file diff --git a/sound/usb/qcom/mixer_usb_offload.c b/sound/usb/qcom/mixer_usb_offload.c new file mode 100644 index 000000000000..c00770400c67 --- /dev/null +++ b/sound/usb/qcom/mixer_usb_offload.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#include + +#include +#include +#include + +#include "../card.h" +#include "../mixer.h" +#include "../usbaudio.h" + +#include "mixer_usb_offload.h" + +#define PCM_IDX(n) (n & 0xffff) +#define CARD_IDX(n) (n >> 16) + +static int +snd_usb_offload_route_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct device *sysdev = snd_kcontrol_chip(kcontrol); + int card; + int pcm; + + card = soc_usb_get_offload_device(sysdev, CARD_IDX(kcontrol->private_value), + PCM_IDX(kcontrol->private_value), + SND_SOC_USB_KCTL_CARD_ROUTE); + + pcm = soc_usb_get_offload_device(sysdev, CARD_IDX(kcontrol->private_value), + PCM_IDX(kcontrol->private_value), + SND_SOC_USB_KCTL_PCM_ROUTE); + if (card < 0 || pcm < 0) { + card = -1; + pcm = -1; + } + + ucontrol->value.integer.value[0] = card; + ucontrol->value.integer.value[1] = pcm; + + return 0; +} + +static int snd_usb_offload_route_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = -1; + /* Arbitrary max value, as there is no 'limit' on number of PCM devices */ + uinfo->value.integer.max = 0xff; + + return 0; +} + +static struct snd_kcontrol_new snd_usb_offload_mapped_ctl = { + .iface = SNDRV_CTL_ELEM_IFACE_CARD, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = snd_usb_offload_route_info, + .get = snd_usb_offload_route_get, +}; + +/** + * snd_usb_offload_create_ctl() - Add USB offload bounded mixer + * @chip - USB SND chip device + * + * Creates a sound control for a USB audio device, so that applications can + * query for if there is an available USB audio offload path, and which + * card is managing it. + */ +int snd_usb_offload_create_ctl(struct snd_usb_audio *chip) +{ + struct usb_device *udev = chip->dev; + struct snd_kcontrol_new *chip_kctl; + struct snd_usb_stream *as; + char ctl_name[37]; + int ret; + + list_for_each_entry(as, &chip->pcm_list, list) { + chip_kctl = &snd_usb_offload_mapped_ctl; + chip_kctl->count = 1; + /* + * Store the associated USB SND card number and PCM index for + * the kctl. + */ + chip_kctl->private_value = as->pcm_index | + chip->card->number << 16; + sprintf(ctl_name, "USB Offload Playback Route PCM#%d", + as->pcm_index); + chip_kctl->name = ctl_name; + ret = snd_ctl_add(chip->card, snd_ctl_new1(chip_kctl, + udev->bus->sysdev)); + if (ret < 0) + break; + } + + return ret; +} diff --git a/sound/usb/qcom/mixer_usb_offload.h b/sound/usb/qcom/mixer_usb_offload.h new file mode 100644 index 000000000000..0efda52e92b6 --- /dev/null +++ b/sound/usb/qcom/mixer_usb_offload.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. + */ + +#ifndef __USB_OFFLOAD_MIXER_H +#define __USB_OFFLOAD_MIXER_H + +#if IS_ENABLED(CONFIG_SND_USB_QC_OFFLOAD_MIXER) +int snd_usb_offload_create_ctl(struct snd_usb_audio *chip); +#else +static inline int snd_usb_offload_create_ctl(struct snd_usb_audio *chip) +{ + return -ENODEV; +} +#endif +#endif /* __USB_OFFLOAD_MIXER_H */ diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c index d9320ebad617..b862aa15aa37 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -37,6 +37,7 @@ #include "../pcm.h" #include "../power.h" +#include "mixer_usb_offload.h" #include "usb_audio_qmi_v01.h" /* Stream disable request timeout during USB device disconnect */ @@ -1678,6 +1679,9 @@ static void qc_usb_audio_offload_probe(struct snd_usb_audio *chip) snd_soc_usb_connect(usb_get_usb_backend(udev), sdev); + if (chip->num_interfaces == 1) + snd_usb_offload_create_ctl(chip); + mutex_unlock(&chip->mutex); mutex_unlock(&qdev_mutex); From patchwork Thu Aug 1 01:17:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816318 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3649EC3DA64 for ; Thu, 1 Aug 2024 01:29:10 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 761A82DD6; Thu, 1 Aug 2024 03:28:02 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 761A82DD6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475692; bh=nbpzghXoozOSKRfY4X/efc5Vvr75u27iINS2af+nHL0=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=oliHU+d+jknDHJMsEUyYwaXyFcejUtRRlV/6ufWjCGfEHQheJcg1xgIruHjPMVfgi MZdC0iTV4eSoIsbjsXOeSMeU2bk5wQLcw4ilAL0f+V8f5ydpN4CqVzvhyYF6W/aL2c Ahs5mj2lyF/acDBdcXUHvEg9dyrhyKodbxd7DKUY= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 90376F89797; Thu, 1 Aug 2024 03:21:48 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 95D60F89798; Thu, 1 Aug 2024 03:21:47 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 69989F80579; Thu, 1 Aug 2024 03:18:34 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 912A6F805B5 for ; Thu, 1 Aug 2024 03:18:00 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 912A6F805B5 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=HEeyU4JC Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VF2WmX021468; Thu, 1 Aug 2024 01:17:51 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=9a7035xQ2oD3K2KYVWK3JXn2 oRFgQXUvTYxERWW8hWM=; b=HEeyU4JCmldJXQlsD9YYIzitVI9NC4AzkZOdnj3P 6S7pufN4pa1nvHwuTZuLPXwl7jOs8KXUa2uy/IXpWBkemToSuFroGtJMhMdB/rCJ HZTLP3R/mmqd8h2EiAPpYweGzZfjjp5FNZWmNUEU/NUZVsssJ6/SokC3yX1JZGnX 7eemXCe6J9U8X7u5sqaqSHStm6fFacYE5QuoWq6U5iGbU3Cuu6FctQ5EzXFqJ5k7 rhEWnDxUmG4wHSDzntqer9hOHRzMkh2UNS2Cohl6uyaad67tYKuCKO0bsSZ4qngc +3gVtSK4SHSnOQvikhHoUmLXfUO2yuW/zH2//cVRuY4WEQ== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40ms43d1t3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:50 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA03.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HooP020179 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:50 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; Wed, 31 Jul 2024 18:17:49 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 30/34] ALSA: usb-audio: Allow for rediscovery of connected USB SND devices Date: Wed, 31 Jul 2024 18:17:26 -0700 Message-ID: <20240801011730.4797-31-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: 9S_P9pn8659PSrOAQXeQjyZHGgMI6Ucx X-Proofpoint-ORIG-GUID: 9S_P9pn8659PSrOAQXeQjyZHGgMI6Ucx 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=999 suspectscore=0 phishscore=0 priorityscore=1501 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010004 Message-ID-Hash: YFVJ6WWR4HXAHURXPZE3UURGCEMRFFED X-Message-ID-Hash: YFVJ6WWR4HXAHURXPZE3UURGCEMRFFED 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: In case of notifying SND platform drivers of connection events, some of these use cases, such as offloading, require an ASoC USB backend device to be initialized before the events can be handled. If the USB backend device has not yet been probed, this leads to missing initial USB audio device connection events. Expose an API that traverses the usb_chip array for connected devices, and to call the respective connection callback registered to the SND platform driver. Signed-off-by: Wesley Cheng --- sound/usb/card.c | 21 +++++++++++++++++++++ sound/usb/card.h | 2 ++ sound/usb/qcom/qc_audio_offload.c | 2 ++ 3 files changed, 25 insertions(+) diff --git a/sound/usb/card.c b/sound/usb/card.c index 8f1051e1716e..70b7f22ff495 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -155,6 +155,27 @@ int snd_usb_unregister_platform_ops(void) } EXPORT_SYMBOL_GPL(snd_usb_unregister_platform_ops); +/* + * in case the platform driver was not ready at the time of USB SND + * device connect, expose an API to discover all connected USB devices + * so it can populate any dependent resources/structures. + */ +void snd_usb_rediscover_devices(void) +{ + int i; + + guard(mutex)(®ister_mutex); + + if (!platform_ops || !platform_ops->connect_cb) + return; + + for (i = 0; i < SNDRV_CARDS; i++) { + if (usb_chip[i]) + platform_ops->connect_cb(usb_chip[i]); + } +} +EXPORT_SYMBOL_GPL(snd_usb_rediscover_devices); + /* * disconnect streams * called from usb_audio_disconnect() diff --git a/sound/usb/card.h b/sound/usb/card.h index e98883785301..f0794aa06cd7 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -218,4 +218,6 @@ struct snd_usb_platform_ops { int snd_usb_register_platform_ops(struct snd_usb_platform_ops *ops); int snd_usb_unregister_platform_ops(void); + +void snd_usb_rediscover_devices(void); #endif /* __USBAUDIO_CARD_H */ diff --git a/sound/usb/qcom/qc_audio_offload.c b/sound/usb/qcom/qc_audio_offload.c index b862aa15aa37..3a89dedfd9ac 100644 --- a/sound/usb/qcom/qc_audio_offload.c +++ b/sound/usb/qcom/qc_audio_offload.c @@ -1898,6 +1898,8 @@ static int __init qc_usb_audio_offload_init(void) if (ret < 0) goto release_qmi; + snd_usb_rediscover_devices(); + return 0; release_qmi: From patchwork Thu Aug 1 01:17:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816316 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A16DAC3DA7F for ; Thu, 1 Aug 2024 01:30:11 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 0E89F3346; Thu, 1 Aug 2024 03:28:59 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 0E89F3346 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475749; bh=PcCZLYy0I8raf/H5VPbpHzcBLcQqV8u77Y4tvA7WIh4=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=Q0Jb2B69eG4DwmyPIBOwVHU+6lRNQIyjka2oYnvJdOn449eS24/NgXahWT8tfIv6F Vgen7VPCS1GL/3+mmmDh4GuljzcMg+JzJD7bkhPFh9t/DIdURoDT+fZIOujAbDNc7G RGXbJwavqL4P60phujemrebqWI2iZ3irt+LWFkrc= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 5EFDFF89803; Thu, 1 Aug 2024 03:21:57 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id A5525F897FC; Thu, 1 Aug 2024 03:21:56 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 196DBF80579; Thu, 1 Aug 2024 03:18:36 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 5E0AAF805E7 for ; Thu, 1 Aug 2024 03:18:00 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 5E0AAF805E7 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=hOTj9AzX Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VJE7QZ006042; Thu, 1 Aug 2024 01:17:51 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=5bwCV+PulWY/P3IoprTc8YTe c/mV8JDbacysVR3o66E=; b=hOTj9AzX+tw3zWbXzc83znE6jnt55R3+PsNL2SQP h0JgEEj6MAXu3Pce9fHvkjKVwVzkfZvVThuA1Wfe+/dzSsdGYIRqbt4IqxodQbnP I99OZkHaaVLweZsify6FkYDia4wNjUjIbXttoe4Rf+gg0prNu0CBqUr4LJp8ALZK WguFtNmZB97mxGGodXxnFXkZrSQjWVn75iYEX2x5Cb73HyFB3uCXSTx68QWVd6NZ asth2DKGFsOR0XsQ1n0WpUVfbz2mCqPC/lSo8mcQgx2uzHcdX8li4Q0wNdDkMgwm t4AEu5arix8JjkkZ/ooB6u9S5JQ/iDDbsKjartsAeZq1zQ== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40qjpjahkg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:51 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711Hojq012443 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:50 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; Wed, 31 Jul 2024 18:17:49 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 31/34] ASoC: usb: Rediscover USB SND devices on USB port add Date: Wed, 31 Jul 2024 18:17:27 -0700 Message-ID: <20240801011730.4797-32-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: P3EwPe9c5cOXM8bYyyWupsa7tEwQyo_3 X-Proofpoint-ORIG-GUID: P3EwPe9c5cOXM8bYyyWupsa7tEwQyo_3 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 suspectscore=0 lowpriorityscore=0 adultscore=0 mlxscore=0 mlxlogscore=999 spamscore=0 malwarescore=0 bulkscore=0 phishscore=0 priorityscore=1501 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: 4DRSYD3WU4AWEI7MERNX4NDT3JTMTZ26 X-Message-ID-Hash: 4DRSYD3WU4AWEI7MERNX4NDT3JTMTZ26 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: In case the USB backend device has not been initialized/probed, USB SND device connections can still occur. When the USB backend is eventually made available, previous USB SND device connections are not communicated to the USB backend. Call snd_usb_rediscover_devices() to generate the connect callbacks for all USB SND devices connected. This will allow for the USB backend to be updated with the current set of devices available. The chip array entries are all populated and removed while under the register_mutex, so going over potential race conditions: Thread#1: q6usb_component_probe() --> snd_soc_usb_add_port() --> snd_usb_rediscover_devices() --> mutex_lock(register_mutex) Thread#2 --> usb_audio_disconnect() --> mutex_lock(register_mutex) So either thread#1 or thread#2 will complete first. If Thread#1 completes before thread#2: SOC USB will notify DPCM backend of the device connection. Shortly after, once thread#2 runs, we will get a disconnect event for the connected device. Thread#2 completes before thread#1: Then during snd_usb_rediscover_devices() it won't notify of any connection for that particular chip index. Signed-off-by: Wesley Cheng --- sound/soc/soc-usb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index 3c217ac67c57..b891beb77001 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -216,6 +216,8 @@ void snd_soc_usb_add_port(struct snd_soc_usb *usb) mutex_lock(&ctx_mutex); list_add_tail(&usb->list, &usb_ctx_list); mutex_unlock(&ctx_mutex); + + snd_usb_rediscover_devices(); } EXPORT_SYMBOL_GPL(snd_soc_usb_add_port); From patchwork Thu Aug 1 01:17:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816319 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F22E6C3DA7F for ; Thu, 1 Aug 2024 01:28:33 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 462DB3212; Thu, 1 Aug 2024 03:27:30 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 462DB3212 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475660; bh=ytvl140rQrYUj6EO/9Ou/CdiiBdSdO4v3tDxNxfqVkI=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=G4PzSFZUOd7DYfUuPsF+EDJkIPbwFyxkgvE3Hn8bTdKQexKclJ4r0m0BbHFHA25hx 6fUwgJ5sD3F0I4dUXj62OP1i6XsOLcF1QY60jZj+gYadWagMw24MFlRfhcJKvBowKl LaAja1zpQ+zB2SAYfqLJC2ntKOCCtTZ9QoN5njnY= Received: by alsa1.perex.cz (Postfix, from userid 50401) id BD009F89751; Thu, 1 Aug 2024 03:21:44 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id E9984F805EB; Thu, 1 Aug 2024 03:21:43 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0D823F80579; Thu, 1 Aug 2024 03:18:33 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id C21C4F805B6 for ; Thu, 1 Aug 2024 03:18:00 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz C21C4F805B6 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=NzVjU/kh Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VMRo4g028742; Thu, 1 Aug 2024 01:17:51 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=WaRl4gZ8HxDnORheHzotNsq/ I5DKVs0MHc2zmvjMi3g=; b=NzVjU/khG6bGEkZYTdAj9huGPa29y6BcCom6pHmn 5kZDMOVe0K24mfrwfeUcNqKB+/R7HvXrvlHWihAJF62n0gRqW8L4bbAV2QTjcGsf UZC/Ha8VU/oNuen6Pn7EOPboiD+p/peew4p/DADNbHgpway/a2DISNF00YIeMasj D109FvMDIdOkow0NxjAneRZbGZtJl7yC1UCPMfpl2Qo+isUPgST8K6GORvo8xYz0 MvxP5/nFHY8vqoC0sryPPkYgmQ/S4ou8OLKQQuhCMt7bfyO6iRTDagYoukYQuZeT 1s84jxGl+9lnomJKRsugt8CdlN+xFCgP0xna8kibx+l9Xg== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40q232wceb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:51 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HotY030396 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:50 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; Wed, 31 Jul 2024 18:17:50 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 32/34] ALSA: usb-audio: Check for support for requested audio format Date: Wed, 31 Jul 2024 18:17:28 -0700 Message-ID: <20240801011730.4797-33-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: zrWjxWis6KX3F_SA5EkDA6EqAPuWUWC1 X-Proofpoint-ORIG-GUID: zrWjxWis6KX3F_SA5EkDA6EqAPuWUWC1 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 malwarescore=0 bulkscore=0 priorityscore=1501 spamscore=0 adultscore=0 mlxscore=0 mlxlogscore=999 clxscore=1015 suspectscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: DAERQIBYJP7NPYR56KIK2GIC2LHVPZUO X-Message-ID-Hash: DAERQIBYJP7NPYR56KIK2GIC2LHVPZUO 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: Allow for checks on a specific USB audio device to see if a requested PCM format is supported. This is needed for support when playback is initiated by the ASoC USB backend path. Signed-off-by: Wesley Cheng --- sound/usb/card.c | 31 +++++++++++++++++++++++++++++++ sound/usb/card.h | 2 ++ 2 files changed, 33 insertions(+) diff --git a/sound/usb/card.c b/sound/usb/card.c index 70b7f22ff495..8c22f6bfdef2 100644 --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -176,6 +176,37 @@ void snd_usb_rediscover_devices(void) } EXPORT_SYMBOL_GPL(snd_usb_rediscover_devices); +/* + * Checks to see if requested audio profile, i.e sample rate, # of + * channels, etc... is supported by the substream associated to the + * USB audio device. + */ +struct snd_usb_stream *snd_usb_find_suppported_substream(int card_idx, + struct snd_pcm_hw_params *params, int direction) +{ + struct snd_usb_audio *chip; + struct snd_usb_substream *subs; + struct snd_usb_stream *as; + + /* + * Register mutex is held when populating and clearing usb_chip + * array. + */ + guard(mutex)(®ister_mutex); + chip = usb_chip[card_idx]; + + if (chip && enable[card_idx]) { + list_for_each_entry(as, &chip->pcm_list, list) { + subs = &as->substream[direction]; + if (snd_usb_find_substream_format(subs, params)) + return as; + } + } + + return NULL; +} +EXPORT_SYMBOL_GPL(snd_usb_find_suppported_substream); + /* * disconnect streams * called from usb_audio_disconnect() diff --git a/sound/usb/card.h b/sound/usb/card.h index f0794aa06cd7..99d6a784eacf 100644 --- a/sound/usb/card.h +++ b/sound/usb/card.h @@ -220,4 +220,6 @@ int snd_usb_register_platform_ops(struct snd_usb_platform_ops *ops); int snd_usb_unregister_platform_ops(void); void snd_usb_rediscover_devices(void); +struct snd_usb_stream *snd_usb_find_suppported_substream(int card_idx, + struct snd_pcm_hw_params *params, int direction); #endif /* __USBAUDIO_CARD_H */ From patchwork Thu Aug 1 01:17:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816090 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 17684C3DA64 for ; Thu, 1 Aug 2024 01:30:32 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id BEE89337E; Thu, 1 Aug 2024 03:29:18 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz BEE89337E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475768; bh=5D+mPwaUMmWNXrW1AfnwWvndBtdg2eDUNCCsQlJ9glc=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=ukycApHTvQq9ygBqTTsboIOgfJwzJ1d+HNCTGSp5TRbOmoIPhEaGicxArjNCs5Asx qbLGwsdJKNKIsbTVj+W/gOE2Pl0tB/xn6+CUd6spuBD93WqoERTy9hvLlmDwgZd5H/ h4pUM/TiH/wJK8hvPa7A876AZZtjZv62UhyH1TwY= Received: by alsa1.perex.cz (Postfix, from userid 50401) id C6DA2F89813; Thu, 1 Aug 2024 03:21:58 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 4A1DEF8981D; Thu, 1 Aug 2024 03:21:58 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 3BA04F802DB; Thu, 1 Aug 2024 03:18:43 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 85B5FF80606 for ; Thu, 1 Aug 2024 03:18:02 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 85B5FF80606 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=HA12HgE1 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 46VDgOpY029572; Thu, 1 Aug 2024 01:17:52 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=V0SsoROSKuWHPcxVRs3FThND enkLYwa5QV1abLWIvVY=; b=HA12HgE1zGhdCjiTJVXZaeXqyqVtSYFVfWuc2sUW JtmFRqfX3mFWSsdsZiYQLilkwy5BzH4FfKpkEcCQlWx4w5LGW6xNkWBhYh8TsfrV BMGPx7KWlglRPXnqP/hMZMTCBVAhKT9NntK5KlVMhmsvfrz6yRhWV+U3V2Eg5jJB R7i3Hr3RvuG56tUNdvSZAutheTjqNPXG5eY3qPi+XLhncbd3xCHChE2sc21boUen rkHGP7LHBKq4xeRBejTTU2ndfLEnz3y9o4JusdNHJT1X/QrA/35G8xtSU7x2PVit Y9v+yydAwvbAojBf73fxln8wvEcKHV70cn9aAZF9kXDK6A== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pw446egr-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:52 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.17.1.19/8.17.1.19) with ESMTPS id 4711HpNk030399 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:51 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; Wed, 31 Jul 2024 18:17:50 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 33/34] ASoC: usb: Add PCM format check API for USB backend Date: Wed, 31 Jul 2024 18:17:29 -0700 Message-ID: <20240801011730.4797-34-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: eaABEy1t2unmemgBOhV1_OuVtrIQlSy7 X-Proofpoint-ORIG-GUID: eaABEy1t2unmemgBOhV1_OuVtrIQlSy7 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxscore=0 priorityscore=1501 adultscore=0 mlxlogscore=999 clxscore=1015 impostorscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010005 Message-ID-Hash: T53KHF6SNIP66U26AT3BNO4X34QM53JZ X-Message-ID-Hash: T53KHF6SNIP66U26AT3BNO4X34QM53JZ 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: Introduce a helper to check if a particular PCM format is supported by the USB audio device connected. If the USB audio device does not have an audio profile which can support the requested format, then notify the USB backend. Signed-off-by: Wesley Cheng --- include/sound/soc-usb.h | 10 ++++++++++ sound/soc/soc-usb.c | 25 +++++++++++++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h index a167e3de0a78..7c875d053981 100644 --- a/include/sound/soc-usb.h +++ b/include/sound/soc-usb.h @@ -52,6 +52,9 @@ struct snd_soc_usb { }; #if IS_ENABLED(CONFIG_SND_SOC_USB) +int snd_soc_usb_find_supported_format(int card_idx, + struct snd_pcm_hw_params *params, int direction); + 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); @@ -68,6 +71,13 @@ void snd_soc_usb_free_port(struct snd_soc_usb *usb); void snd_soc_usb_add_port(struct snd_soc_usb *usb); void snd_soc_usb_remove_port(struct snd_soc_usb *usb); #else +static inline int snd_soc_usb_find_supported_format(int card_idx, + struct snd_pcm_hw_params *params, + int direction) +{ + return -EINVAL; +} + static inline int snd_soc_usb_connect(struct device *usbdev, struct snd_soc_usb_device *sdev) { diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c index b891beb77001..9cb79ad908dd 100644 --- a/sound/soc/soc-usb.c +++ b/sound/soc/soc-usb.c @@ -162,6 +162,31 @@ void *snd_soc_usb_find_priv_data(struct device *dev) } EXPORT_SYMBOL_GPL(snd_soc_usb_find_priv_data); +/** + * snd_soc_usb_find_supported_format() - Check if audio format is supported + * @card_idx: USB sound chip array index + * @params: PCM parameters + * @direction: capture or playback + * + * Ensure that a requested audio profile from the ASoC side is able to be + * supported by the USB device. + * + * Return 0 on success, negative on error. + * + */ +int snd_soc_usb_find_supported_format(int card_idx, + struct snd_pcm_hw_params *params, int direction) +{ + struct snd_usb_stream *as; + + as = snd_usb_find_suppported_substream(card_idx, params, direction); + if (!as) + return -EOPNOTSUPP; + + return 0; +} +EXPORT_SYMBOL_GPL(snd_soc_usb_find_supported_format); + /** * snd_soc_usb_allocate_port() - allocate a SOC USB device * @component: USB DPCM backend DAI component From patchwork Thu Aug 1 01:17:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 816091 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 alsa0.perex.cz (unknown [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1E907C3DA64 for ; Thu, 1 Aug 2024 01:29:54 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 8F5C73319; Thu, 1 Aug 2024 03:28:46 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 8F5C73319 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722475736; bh=zXJYxoowjLCGGs/moXG9k9H4KOG3qRzqvJSx6i1jyIo=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=nY1Y9asT3WFDLHLCewOQrPs7qgI/B4lfzz4u0QtYaY5BS14ClOcSj/3S6Nr9gj8qZ d4UH6x7FSKQTeeplLSrZt2QDoR7AZHlNHtQUrpZqA/LEgglW25pUNI+6zbCwuM2ydh ZSoRCabDEXs4WBpd6a1tgEkMAEg4Hp2ept7SQ1f8= Received: by alsa1.perex.cz (Postfix, from userid 50401) id E09ABF897E9; Thu, 1 Aug 2024 03:21:54 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 5DEDBF897E7; Thu, 1 Aug 2024 03:21:54 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 459B7F80579; Thu, 1 Aug 2024 03:18:35 +0200 (CEST) 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 alsa1.perex.cz (Postfix) with ESMTPS id 3E22BF805C2 for ; Thu, 1 Aug 2024 03:18:01 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 3E22BF805C2 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=QCrL/2X2 Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 46VLAJRX006082; Thu, 1 Aug 2024 01:17:52 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=0YyrBOfLud+dH9tBesRDPfRK DGs1gz1i/U8ghzKbd2E=; b=QCrL/2X26/TttjkdVba8u7UWZ/eIR4QHx57yZWVN 3izM0hmOOoYt+JBp8jlRlxHwJ+idRD1XSs7CU/F25tQM1jbdOT+LWuPiEk0xmIv0 WNYaADRaL90O+c3HJNlEefLNfh4dAKifqG6c93VHYefyfKKu+fHq6y9onQ3+gzHZ 5TZSq74wI6xQPxGXM31osGtYuosZgkT0SfVMrrrR+Om+neCWsLYDCzrIMAyCZY3q eM72P5L6wgG3qav83q2pAl/Wtd09MfIpQi9vL/1+YdOpEuUTXYl70yknjxKzGspk zEm3v7hqzifExoTj4h1l+kLHW2QSOhOgc/w78cScudErpg== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40pq5278fm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Aug 2024 01:17:52 +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 4711HpNI026929 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 1 Aug 2024 01:17:51 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; Wed, 31 Jul 2024 18:17:50 -0700 From: Wesley Cheng To: , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v24 34/34] ASoC: qcom: qdsp6: Ensure PCM format is supported by USB audio device Date: Wed, 31 Jul 2024 18:17:30 -0700 Message-ID: <20240801011730.4797-35-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240801011730.4797-1-quic_wcheng@quicinc.com> References: <20240801011730.4797-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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: 9LmxEnlmigDKbRJHAXQqAhHAThcfJJS3 X-Proofpoint-ORIG-GUID: 9LmxEnlmigDKbRJHAXQqAhHAThcfJJS3 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=2024-07-31_11,2024-07-31_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=999 adultscore=0 priorityscore=1501 spamscore=0 bulkscore=0 mlxscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 suspectscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408010004 Message-ID-Hash: CR5C4VNT252BZUJFWRU2IRTQ3I66VDS3 X-Message-ID-Hash: CR5C4VNT252BZUJFWRU2IRTQ3I66VDS3 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: Check for if the PCM format is supported during the hw_params callback. If the profile is not supported then the userspace ALSA entity will receive an error, and can take further action. Signed-off-by: Wesley Cheng --- sound/soc/qcom/qdsp6/q6usb.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c index d8f1bb4ec497..9a3fb3cb32b2 100644 --- a/sound/soc/qcom/qdsp6/q6usb.c +++ b/sound/soc/qcom/qdsp6/q6usb.c @@ -52,6 +52,7 @@ static int q6usb_hw_params(struct snd_pcm_substream *substream, struct q6usb_port_data *data = dev_get_drvdata(dai->dev); struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); + int direction = substream->stream; struct q6afe_port *q6usb_afe; struct snd_soc_usb_device *sdev; int ret; @@ -63,6 +64,10 @@ static int q6usb_hw_params(struct snd_pcm_substream *substream, mutex_lock(&data->mutex); sdev = list_last_entry(&data->devices, struct snd_soc_usb_device, list); + ret = snd_soc_usb_find_supported_format(sdev->chip_idx, params, direction); + if (ret < 0) + goto out; + q6usb_afe = q6afe_port_get_from_id(cpu_dai->dev, USB_RX); if (IS_ERR(q6usb_afe)) goto out;