From patchwork Tue Jul 26 23:01:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Brian Gix X-Patchwork-Id: 12929915 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 5600FC04A68 for ; Tue, 26 Jul 2022 23:01:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239814AbiGZXBy (ORCPT ); Tue, 26 Jul 2022 19:01:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239766AbiGZXBx (ORCPT ); Tue, 26 Jul 2022 19:01:53 -0400 Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3CB8EEE2E for ; Tue, 26 Jul 2022 16:01:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1658876512; x=1690412512; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=NKttana0ttN/WBqh7pAzR4E16KnYY/p5RJdmlgJ5Aa4=; b=fpUCy6Xoc0Bu9pt9PVbPhNpt+q/kHNj4gF23yMbWNoU0TsfDZJqYtELh PFJ2/DsZgZQi4dmDfVieG6WWKUHRN8MB6PNNmF8+LK2WhQ/bI2y3BH62H s5DlNXCZJjK2VMLcLkbcVmTeL4xy/nEqkQSTpIHxMV87gtMtlMZWD3k1l qNmyHRmqCIVbTiMqHVopvfP2kJDHCTeEzuXeT0IDFEGYmFkDvi9br8I9E X8BIlNpzlYFXlYcWVqbowDc/wW6mab0H1PbOHNgpwfKtSpKFGIZZVKDLS BjHJ3k2ZLynO0/I5tmWmdQAh0KZWj67jPCATdQKF7gLg4FpmMR1JV1vQr g==; X-IronPort-AV: E=McAfee;i="6400,9594,10420"; a="274965139" X-IronPort-AV: E=Sophos;i="5.93,194,1654585200"; d="scan'208";a="274965139" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jul 2022 16:01:50 -0700 X-IronPort-AV: E=Sophos;i="5.93,194,1654585200"; d="scan'208";a="668098977" Received: from srezaei-mobl.amr.corp.intel.com (HELO bgi1-mobl2.amr.corp.intel.com) ([10.212.5.115]) by fmsmga004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jul 2022 16:01:49 -0700 From: Brian Gix To: linux-bluetooth@vger.kernel.org Cc: marcel@holtmann.org, luiz.dentz@gmail.com, brian.gix@intel.com Subject: [PATCH v3 1/4] Bluetooth: Convert le_scan_disable timeout to hci_sync Date: Tue, 26 Jul 2022 16:01:37 -0700 Message-Id: <20220726230140.205481-2-brian.gix@intel.com> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220726230140.205481-1-brian.gix@intel.com> References: <20220726230140.205481-1-brian.gix@intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-bluetooth@vger.kernel.org The le_scan_disable timeout was being performed on the deprecated hci_request.c mechanism. This timeout is performed in hci_sync.c Signed-off-by: Brian Gix --- net/bluetooth/hci_request.c | 98 +------------------------------------ net/bluetooth/hci_sync.c | 73 +++++++++++++++++++++++++++ 2 files changed, 74 insertions(+), 97 deletions(-) diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index e64d558e5d69..32fefaa0d3ca 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -269,6 +269,7 @@ void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, const void *param) { + bt_dev_dbg(req->hdev, "HCI_REQ-0x%4.4x", opcode); hci_req_add_ev(req, opcode, plen, param, 0); } @@ -1974,101 +1975,6 @@ int hci_abort_conn(struct hci_conn *conn, u8 reason) return 0; } -static int le_scan_disable(struct hci_request *req, unsigned long opt) -{ - hci_req_add_le_scan_disable(req, false); - return 0; -} - -static int bredr_inquiry(struct hci_request *req, unsigned long opt) -{ - u8 length = opt; - const u8 giac[3] = { 0x33, 0x8b, 0x9e }; - const u8 liac[3] = { 0x00, 0x8b, 0x9e }; - struct hci_cp_inquiry cp; - - if (test_bit(HCI_INQUIRY, &req->hdev->flags)) - return 0; - - bt_dev_dbg(req->hdev, ""); - - hci_dev_lock(req->hdev); - hci_inquiry_cache_flush(req->hdev); - hci_dev_unlock(req->hdev); - - memset(&cp, 0, sizeof(cp)); - - if (req->hdev->discovery.limited) - memcpy(&cp.lap, liac, sizeof(cp.lap)); - else - memcpy(&cp.lap, giac, sizeof(cp.lap)); - - cp.length = length; - - hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp); - - return 0; -} - -static void le_scan_disable_work(struct work_struct *work) -{ - struct hci_dev *hdev = container_of(work, struct hci_dev, - le_scan_disable.work); - u8 status; - - bt_dev_dbg(hdev, ""); - - if (!hci_dev_test_flag(hdev, HCI_LE_SCAN)) - return; - - cancel_delayed_work(&hdev->le_scan_restart); - - hci_req_sync(hdev, le_scan_disable, 0, HCI_CMD_TIMEOUT, &status); - if (status) { - bt_dev_err(hdev, "failed to disable LE scan: status 0x%02x", - status); - return; - } - - hdev->discovery.scan_start = 0; - - /* If we were running LE only scan, change discovery state. If - * we were running both LE and BR/EDR inquiry simultaneously, - * and BR/EDR inquiry is already finished, stop discovery, - * otherwise BR/EDR inquiry will stop discovery when finished. - * If we will resolve remote device name, do not change - * discovery state. - */ - - if (hdev->discovery.type == DISCOV_TYPE_LE) - goto discov_stopped; - - if (hdev->discovery.type != DISCOV_TYPE_INTERLEAVED) - return; - - if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) { - if (!test_bit(HCI_INQUIRY, &hdev->flags) && - hdev->discovery.state != DISCOVERY_RESOLVING) - goto discov_stopped; - - return; - } - - hci_req_sync(hdev, bredr_inquiry, DISCOV_INTERLEAVED_INQUIRY_LEN, - HCI_CMD_TIMEOUT, &status); - if (status) { - bt_dev_err(hdev, "inquiry failed: status 0x%02x", status); - goto discov_stopped; - } - - return; - -discov_stopped: - hci_dev_lock(hdev); - hci_discovery_set_state(hdev, DISCOVERY_STOPPED); - hci_dev_unlock(hdev); -} - static int le_scan_restart(struct hci_request *req, unsigned long opt) { struct hci_dev *hdev = req->hdev; @@ -2252,7 +2158,6 @@ int hci_req_configure_datapath(struct hci_dev *hdev, struct bt_codec *codec) void hci_request_setup(struct hci_dev *hdev) { - INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work); INIT_DELAYED_WORK(&hdev->le_scan_restart, le_scan_restart_work); INIT_DELAYED_WORK(&hdev->adv_instance_expire, adv_timeout_expire); INIT_DELAYED_WORK(&hdev->interleave_scan, interleave_scan_work); @@ -2262,7 +2167,6 @@ void hci_request_cancel_all(struct hci_dev *hdev) { __hci_cmd_sync_cancel(hdev, ENODEV); - cancel_delayed_work_sync(&hdev->le_scan_disable); cancel_delayed_work_sync(&hdev->le_scan_restart); if (hdev->adv_instance_timeout) { diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c index 148ce629a59f..7dae2ee1bb82 100644 --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -321,6 +321,77 @@ static void hci_cmd_sync_cancel_work(struct work_struct *work) wake_up_interruptible(&hdev->req_wait_q); } +static int hci_scan_disable_sync(struct hci_dev *hdev); +static int scan_disable_sync(struct hci_dev *hdev, void *data) +{ + return hci_scan_disable_sync(hdev); +} + +static int hci_inquiry_sync(struct hci_dev *hdev, u8 length); +static int interleaved_inquiry_sync(struct hci_dev *hdev, void *data) +{ + return hci_inquiry_sync(hdev, DISCOV_INTERLEAVED_INQUIRY_LEN); +} + +static void le_scan_disable(struct work_struct *work) +{ + struct hci_dev *hdev = container_of(work, struct hci_dev, + le_scan_disable.work); + int status; + + bt_dev_dbg(hdev, ""); + hci_dev_lock(hdev); + + if (!hci_dev_test_flag(hdev, HCI_LE_SCAN)) + goto _return; + + cancel_delayed_work(&hdev->le_scan_restart); + + status = hci_cmd_sync_queue(hdev, scan_disable_sync, NULL, NULL); + if (status) { + bt_dev_err(hdev, "failed to disable LE scan: %d", status); + goto _return; + } + + hdev->discovery.scan_start = 0; + + /* If we were running LE only scan, change discovery state. If + * we were running both LE and BR/EDR inquiry simultaneously, + * and BR/EDR inquiry is already finished, stop discovery, + * otherwise BR/EDR inquiry will stop discovery when finished. + * If we will resolve remote device name, do not change + * discovery state. + */ + + if (hdev->discovery.type == DISCOV_TYPE_LE) + goto discov_stopped; + + if (hdev->discovery.type != DISCOV_TYPE_INTERLEAVED) + goto _return; + + if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) { + if (!test_bit(HCI_INQUIRY, &hdev->flags) && + hdev->discovery.state != DISCOVERY_RESOLVING) + goto discov_stopped; + + goto _return; + } + + status = hci_cmd_sync_queue(hdev, interleaved_inquiry_sync, NULL, NULL); + if (status) { + bt_dev_err(hdev, "inquiry failed: status %d", status); + goto discov_stopped; + } + + goto _return; + +discov_stopped: + hci_discovery_set_state(hdev, DISCOVERY_STOPPED); + +_return: + hci_dev_unlock(hdev); +} + void hci_cmd_sync_init(struct hci_dev *hdev) { INIT_WORK(&hdev->cmd_sync_work, hci_cmd_sync_work); @@ -328,6 +399,7 @@ void hci_cmd_sync_init(struct hci_dev *hdev) mutex_init(&hdev->cmd_sync_work_lock); INIT_WORK(&hdev->cmd_sync_cancel_work, hci_cmd_sync_cancel_work); + INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable); } void hci_cmd_sync_clear(struct hci_dev *hdev) @@ -4415,6 +4487,7 @@ int hci_dev_close_sync(struct hci_dev *hdev) cancel_delayed_work(&hdev->power_off); cancel_delayed_work(&hdev->ncmd_timer); + cancel_delayed_work(&hdev->le_scan_disable); hci_request_cancel_all(hdev);