From patchwork Mon Aug 1 10:36:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sven Peter X-Patchwork-Id: 594765 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E7F1C00144 for ; Mon, 1 Aug 2022 10:40:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231310AbiHAKkN (ORCPT ); Mon, 1 Aug 2022 06:40:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40550 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231253AbiHAKkH (ORCPT ); Mon, 1 Aug 2022 06:40:07 -0400 Received: from out5-smtp.messagingengine.com (out5-smtp.messagingengine.com [66.111.4.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D744639BAD; Mon, 1 Aug 2022 03:39:57 -0700 (PDT) Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id E69A75C0130; Mon, 1 Aug 2022 06:39:56 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute2.internal (MEProxy); Mon, 01 Aug 2022 06:39:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=svenpeter.dev; h=cc:cc:content-transfer-encoding:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm3; t=1659350396; x= 1659436796; bh=NkwFPO/ZTUvbyS6zTolzX5iCRdPBBF2BR7/v0HZlVoU=; b=V K1oPBLYVjvANj5UxeJu7pGvWZSPYu0oiFkT0w88ptmfXzIsNHxXYCetBVTaJTLXa kL7dOl+9Wj0nJBQf4GqNbISfn6kXl7/HLk0wpto22cW7VrvMHpxUJkyU1E0b3UVa VYyBpccsXmgxOe4cfsOEAvPIVLSPDAIrWUsDSKGNBo3Nj/cXmDLM1lwqQxaRYaPX n4k1wJu5Z2PkKxfxVcKx8FswQSRPMUvqotCU1G9edrC4b1VWq2zDbKjm0G26kXVl qpwvOXZ98Cx0awYlOTjD2ZdkcAeeVyRyKxO0bYPO9uClcTjk/5uu+7hFf9CYIU8i Z36r+x+nBql+Ns9e8e1fw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm3; t=1659350396; x=1659436796; bh=NkwFPO/ZTUvby S6zTolzX5iCRdPBBF2BR7/v0HZlVoU=; b=hjSLDIumXMjSLcaWE/7iN5n6VPlZb dLuTdkckdLJsWAPnmWG/HiZMORZd90/mB0FmDgZHMNORETYNmCz5VD60emJ4TVBZ OLI7iPAjW5MuaySlUS2PkoHKVjkH7jLDRFVii5AMpnWLc7ZWwyDO3syhvzKFOeCP UsDZDGMIItv6revPgpzcut4x3YmX33P1OAHxYRagoVMvHHYh9qxluwxmw8OXbxai FC0x6f13gxbsUP7fYZJJmUdgsqOsL2w2dNK/e5vjx0qrbU9si0s4etH3Sp3jRmYx 37KPry2L2apsWm1PiFMT+HLATElCOx2IKza2eO0tPGvWKOQGGsDrD6uNg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedrvddvfedgfeduucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhephffvvefufffkofgjfhgggfestdekredtredttdenucfhrhhomhepufhvvghn ucfrvghtvghruceoshhvvghnsehsvhgvnhhpvghtvghrrdguvghvqeenucggtffrrghtth gvrhhnpeejieehheekgedvjefhveekjefguddtfefhteehtdeiffelkeeiuedufeelkeej geenucevlhhushhtvghrufhiiigvpedunecurfgrrhgrmhepmhgrihhlfhhrohhmpehsvh gvnhesshhvvghnphgvthgvrhdruggvvh X-ME-Proxy: Feedback-ID: i51094778:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Mon, 1 Aug 2022 06:39:54 -0400 (EDT) From: Sven Peter To: Marcel Holtmann , Johan Hedberg , Luiz Augusto von Dentz Cc: Sven Peter , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Krzysztof Kozlowski , Paolo Abeni , Rob Herring , Hector Martin , Alyssa Rosenzweig , asahi@lists.linux.dev, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/5] Bluetooth: Add quirk to disable extended scanning Date: Mon, 1 Aug 2022 12:36:32 +0200 Message-Id: <20220801103633.27772-5-sven@svenpeter.dev> X-Mailer: git-send-email 2.30.1 (Apple Git-130) In-Reply-To: <20220801103633.27772-1-sven@svenpeter.dev> References: <20220801103633.27772-1-sven@svenpeter.dev> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org Broadcom 4377 controllers found in Apple x86 Macs with the T2 chip claim to support extended scanning when querying supported states, < HCI Command: LE Read Supported St.. (0x08|0x001c) plen 0 #27 [hci0] 2.971839 > HCI Event: Command Complete (0x0e) plen 12 #28 [hci0] 2.972730 LE Read Supported States (0x08|0x001c) ncmd 1 Status: Success (0x00) States: 0x000003ffffffffff [...] LE Set Extended Scan Parameters (Octet 37 - Bit 5) LE Set Extended Scan Enable (Octet 37 - Bit 6) [...] , but then fail to actually implement the extended scanning: < HCI Command: LE Set Extended Sca.. (0x08|0x0041) plen 8 #105 [hci0] 5.460776 Own address type: Random (0x01) Filter policy: Accept all advertisement (0x00) PHYs: 0x01 Entry 0: LE 1M Type: Active (0x01) Interval: 11.250 msec (0x0012) Window: 11.250 msec (0x0012) > HCI Event: Command Complete (0x0e) plen 4 #106 [hci0] 5.461777 LE Set Extended Scan Parameters (0x08|0x0041) ncmd 1 Status: Unknown HCI Command (0x01) Signed-off-by: Sven Peter --- include/net/bluetooth/hci.h | 10 ++++++++++ include/net/bluetooth/hci_core.h | 4 +++- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 47e1ee6f275d..dd275842b9b2 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -285,6 +285,16 @@ enum { * during the hdev->setup vendor callback. */ HCI_QUIRK_FIXUP_LE_EXT_ADV_REPORT_EVT_TYPE, + + /* + * When this quirk is set, the HCI_OP_LE_SET_EXT_SCAN_ENABLE command is + * disabled. This is required for some Broadcom controllers which + * erroneously claim to support extended scanning. + * + * This quirk can be set before hci_register_dev is called or + * during the hdev->setup vendor callback. + */ + HCI_QUIRK_BROKEN_EXT_SCAN, }; /* HCI device flags */ diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index c0ea2a4892b1..149b9a10f52f 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1501,7 +1501,9 @@ void hci_conn_del_sysfs(struct hci_conn *conn); /* Use ext scanning if set ext scan param and ext scan enable is supported */ #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ - ((dev)->commands[37] & 0x40)) + ((dev)->commands[37] & 0x40) && \ + !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks)) + /* Use ext create connection if command is supported */ #define use_ext_conn(dev) ((dev)->commands[37] & 0x80)