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Signed-off-by: Chris Lu --- drivers/bluetooth/btusb.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 6c9c761d5b93..6cf1729a8225 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2704,11 +2704,14 @@ static int btusb_mtk_shutdown(struct hci_dev *hdev) { struct btusb_data *data = hci_get_drvdata(hdev); struct btmtk_data *btmtk_data = hci_get_priv(hdev); + int ret; + + ret = btmtk_usb_shutdown(hdev); if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags)) btusb_mtk_release_iso_intf(data); - return btmtk_usb_shutdown(hdev); + return ret; } #ifdef CONFIG_PM From patchwork Thu Sep 19 07:49:23 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Lu X-Patchwork-Id: 13807457 Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA015198E81; 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Thu, 19 Sep 2024 15:49:30 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 19 Sep 2024 15:49:27 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Thu, 19 Sep 2024 15:49:27 +0800 From: Chris Lu To: Marcel Holtmann , Johan Hedberg , Luiz Von Dentz CC: Sean Wang , Aaron Hou , Steve Lee , linux-bluetooth , linux-kernel , linux-mediatek , Chris Lu Subject: [PATCH v2 2/4] Bluetooth: btusb: mediatek: add callback function in btusb_disconnect Date: Thu, 19 Sep 2024 15:49:23 +0800 Message-ID: <20240919074925.22860-3-chris.lu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240919074925.22860-1-chris.lu@mediatek.com> References: <20240919074925.22860-1-chris.lu@mediatek.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--4.331900-8.000000 X-TMASE-MatchedRID: y/MOm6ldwRI1vivz3L6ga8LPXKYZysJR9l9p8mNlkgm0ObdxMohq2ICu qghmtWfXXj+G1I2Cld+xpBP9Oramp2Vnjx+sD6KyngIgpj8eDcAZ1CdBJOsoY9mzcdRxL+xwKra uXd3MZDUo5EQfqvblfre1p4GsFJbVsIc0+IeBu7qxuSf5TeAQ1D/t1QR3QKuETaQP2XYPQ2kaQs z7R1kd2F9TyrSZzhrbyUQ/Y5AoRrhBLAb/FTpmUnQE0HbT5LEft/yYljnuhl10loENhqV3WYc7S 1VgNXhPQwymtxuJ6y0= X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--4.331900-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: FF418458DD37296C8B691E6333DE9605397CF74A140DDE005066AB14311AC2F62000:8 Add disconnect callback function in btusb_disconnect which is reserved for vendor specific usage before deregister hci in btusb_disconnect. Signed-off-by: Chris Lu --- drivers/bluetooth/btusb.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 6cf1729a8225..dfc42bdc8aaf 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -846,6 +846,7 @@ struct btusb_data { int (*suspend)(struct hci_dev *hdev); int (*resume)(struct hci_dev *hdev); + int (*disconnect)(struct hci_dev *hdev); int oob_wake_irq; /* irq for out-of-band wake-on-bt */ unsigned cmd_timeout_cnt; @@ -4011,6 +4012,9 @@ static void btusb_disconnect(struct usb_interface *intf) if (data->diag) usb_set_intfdata(data->diag, NULL); + if (data->disconnect) + data->disconnect(hdev); + hci_unregister_dev(hdev); if (intf == data->intf) { From patchwork Thu Sep 19 07:49:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Lu X-Patchwork-Id: 13807456 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9F0F5195FCE; 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Thu, 19 Sep 2024 15:49:30 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 19 Sep 2024 15:49:28 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Thu, 19 Sep 2024 15:49:28 +0800 From: Chris Lu To: Marcel Holtmann , Johan Hedberg , Luiz Von Dentz CC: Sean Wang , Aaron Hou , Steve Lee , linux-bluetooth , linux-kernel , linux-mediatek , Chris Lu Subject: [PATCH v2 3/4] Bluetooth: btusb: mediatek: add intf release flow when usb disconnect Date: Thu, 19 Sep 2024 15:49:24 +0800 Message-ID: <20240919074925.22860-4-chris.lu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240919074925.22860-1-chris.lu@mediatek.com> References: <20240919074925.22860-1-chris.lu@mediatek.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--1.103300-8.000000 X-TMASE-MatchedRID: wjD3WG0lTZLI4MewwWCjuRWCVBr+Ay98Kx5ICGp/WtFYjwH7MZdcVNi9 OlIVE9udxiqnR+5LS88BtjkcfRMmqRLekAZjy1WtdOc7KAdVCk6e4TzN1NEjX8EqvmtqSkiMMJd KxR82Ss51HcTlxHHDKN/9Dl+7GxSalNn1XnREFDvhG1IOMb7PsH0tCKdnhB589yM15V5aWpj6C0 ePs7A07UngwKs5OejnzCIIqkPMUYdZMchMK1Kj71AMKlO/nqIbTT/NQiV71j5mHYOkBL8C8scef mYW/oKjnXbAYVhiMWNV/9crlvi2xqaNltbdg3HRdmtRsRmKkASJZPT2ZDPuzPD2QfzMDLjhIh26 TkmSN3fAvpLE+mvX8g== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--1.103300-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 0479B9372CCDBC9528C05E4EF7758888979D75D569BA59E22FD7B98D8D8176792000:8 MediaTek claim an special usb intr interface for ISO data transmission. The interface need to be released before unregistering hci device when usb disconnect. Removing BT usb dongle without properly releasing the interface may cause Kernel panic while unregister hci device. Signed-off-by: Chris Lu --- drivers/bluetooth/btusb.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index dfc42bdc8aaf..37e67b451b34 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2614,9 +2614,9 @@ static void btusb_mtk_claim_iso_intf(struct btusb_data *data) set_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); } -static void btusb_mtk_release_iso_intf(struct btusb_data *data) +static int btusb_mtk_release_iso_intf(struct hci_dev *hdev) { - struct btmtk_data *btmtk_data = hci_get_priv(data->hdev); + struct btmtk_data *btmtk_data = hci_get_priv(hdev); if (btmtk_data->isopkt_intf) { usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); @@ -2630,6 +2630,8 @@ static void btusb_mtk_release_iso_intf(struct btusb_data *data) } clear_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags); + + return 0; } static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) @@ -2649,7 +2651,7 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) return err; if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags)) - btusb_mtk_release_iso_intf(data); + btusb_mtk_release_iso_intf(hdev); btusb_stop_traffic(data); usb_kill_anchored_urbs(&data->tx_anchor); @@ -2703,14 +2705,13 @@ static int btusb_mtk_setup(struct hci_dev *hdev) static int btusb_mtk_shutdown(struct hci_dev *hdev) { - struct btusb_data *data = hci_get_drvdata(hdev); struct btmtk_data *btmtk_data = hci_get_priv(hdev); int ret; ret = btmtk_usb_shutdown(hdev); if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags)) - btusb_mtk_release_iso_intf(data); + btusb_mtk_release_iso_intf(hdev); return ret; } @@ -3824,6 +3825,7 @@ static int btusb_probe(struct usb_interface *intf, data->recv_acl = btmtk_usb_recv_acl; data->suspend = btmtk_usb_suspend; data->resume = btmtk_usb_resume; + data->disconnect = btusb_mtk_release_iso_intf; } if (id->driver_info & BTUSB_SWAVE) { From patchwork Thu Sep 19 07:49:25 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Lu X-Patchwork-Id: 13807455 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E499A196C7C; 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Thu, 19 Sep 2024 15:49:29 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 19 Sep 2024 15:49:28 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Thu, 19 Sep 2024 15:49:28 +0800 From: Chris Lu To: Marcel Holtmann , Johan Hedberg , Luiz Von Dentz CC: Sean Wang , Aaron Hou , Steve Lee , linux-bluetooth , linux-kernel , linux-mediatek , Chris Lu Subject: [PATCH v2 4/4] Bluetooth: btusb: mediatek: change the conditions for ISO interface Date: Thu, 19 Sep 2024 15:49:25 +0800 Message-ID: <20240919074925.22860-5-chris.lu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240919074925.22860-1-chris.lu@mediatek.com> References: <20240919074925.22860-1-chris.lu@mediatek.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Change conditions for Bluetooth driver claiming and releasing usb ISO interface for MediaTek ISO data transmission. Signed-off-by: Chris Lu --- drivers/bluetooth/btusb.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 37e67b451b34..bb28a9b2dc11 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2618,7 +2618,7 @@ static int btusb_mtk_release_iso_intf(struct hci_dev *hdev) { struct btmtk_data *btmtk_data = hci_get_priv(hdev); - if (btmtk_data->isopkt_intf) { + if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { usb_kill_anchored_urbs(&btmtk_data->isopkt_anchor); clear_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags); @@ -2650,7 +2650,7 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data) if (err < 0) return err; - if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags)) + if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) btusb_mtk_release_iso_intf(hdev); btusb_stop_traffic(data); @@ -2696,9 +2696,10 @@ static int btusb_mtk_setup(struct hci_dev *hdev) btmtk_data->reset_sync = btusb_mtk_reset; /* Claim ISO data interface and endpoint */ - btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); - if (btmtk_data->isopkt_intf) + if (!test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) { + btmtk_data->isopkt_intf = usb_ifnum_to_if(data->udev, MTK_ISO_IFNUM); btusb_mtk_claim_iso_intf(data); + } return btmtk_usb_setup(hdev); } @@ -2710,7 +2711,7 @@ static int btusb_mtk_shutdown(struct hci_dev *hdev) ret = btmtk_usb_shutdown(hdev); - if (test_bit(BTMTK_ISOPKT_RUNNING, &btmtk_data->flags)) + if (test_bit(BTMTK_ISOPKT_OVER_INTR, &btmtk_data->flags)) btusb_mtk_release_iso_intf(hdev); return ret;