From patchwork Tue Jan 2 12:47:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hao Qin X-Patchwork-Id: 759460 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 13246F9FA; Tue, 2 Jan 2024 12:48:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=mediatek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mediatek.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="XXEYOoS/" X-UUID: 45689010a96d11ee9e680517dc993faa-20240102 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=3ntL+5uaAV9DSRO6KwCdZOXUOQstLPvq7hVMkRfPMeA=; b=XXEYOoS/ZjG/xZFVlcVJMsKMSJap/aoIwLyFQabUOkOyoCKhg3eKl9NmOohlvNDZtHOBA3kTlaUwDu2hKXbSv/3xql2bgRSMfHEBSLVvnjyyAEcFzlVRL41mXLvALMl57JVPqHtSe5M6F7OWXYtZOr5liGMXPe3E2KUDY3/xqSk=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.35, REQID:f9b2f338-6813-4c83-aec6-b5e5503cecc9, IP:0, U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:5d391d7, CLOUDID:9ac5ce8d-e2c0-40b0-a8fe-7c7e47299109, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO, DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: 45689010a96d11ee9e680517dc993faa-20240102 Received: from mtkmbs10n2.mediatek.inc [(172.21.101.183)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1842662143; Tue, 02 Jan 2024 20:48:47 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 2 Jan 2024 20:48:46 +0800 Received: from mhfsdcap04.gcn.mediatek.inc (10.17.3.154) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 2 Jan 2024 20:48:45 +0800 From: Hao Qin To: Marcel Holtmann , Johan Hedberg , Luiz Von Dentz CC: Sean Wang , Deren Wu , Aaron Hou , Chris Lu , Steve Lee , linux-bluetooth , linux-kernel , linux-mediatek , hao.qin Subject: [PATCH v2 2/2] Bluetooth: btusb: mediatek: add a recovery method for MT7922 and MT7925 Date: Tue, 2 Jan 2024 20:47:47 +0800 Message-ID: <20240102124747.21644-2-hao.qin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240102124747.21644-1-hao.qin@mediatek.com> References: <20240102124747.21644-1-hao.qin@mediatek.com> Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: "hao.qin" For MT7922 and MT7925, add USB reset retry to recover from patch download failure, and perform a reset before patch download to avoid unexpected problems caused by unkonwn status of dongle. Signed-off-by: hao.qin --- drivers/bluetooth/btusb.c | 29 ++++++++++++++++++++++++----- 1 file changed, 24 insertions(+), 5 deletions(-) diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index abefcd1a089d..26ad4864d06c 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -3000,17 +3000,26 @@ static int btusb_mtk_subsys_reset(struct hci_dev *hdev, u32 dev_id) u32 val; int err; - if (dev_id == 0x7925) { + if (dev_id == 0x7922) { + btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); + val |= 0x00002020; + btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val); + btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); + btusb_mtk_uhw_reg_read(data, MTK_BT_SUBSYS_RST, &val); + val |= BIT(0); + btusb_mtk_uhw_reg_write(data, MTK_BT_SUBSYS_RST, val); + msleep(100); + } else if (dev_id == 0x7925) { btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); - val |= (1 << 5); + val |= BIT(5); btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); val &= 0xFFFF00FF; - val |= (1 << 13); + val |= BIT(13); btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); btusb_mtk_uhw_reg_write(data, MTK_EP_RST_OPT, 0x00010001); btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val); - val |= (1 << 0); + val |= BIT(0); btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val); btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); btusb_mtk_uhw_reg_read(data, MTK_UDMA_INT_STA_BT, &val); @@ -3040,6 +3049,9 @@ static int btusb_mtk_subsys_reset(struct hci_dev *hdev, u32 dev_id) if (err < 0) bt_dev_err(hdev, "Reset timeout"); + if (dev_id == 0x7922) + btusb_mtk_uhw_reg_write(data, MTK_UDMA_INT_STA_BT, 0x000000FF); + btusb_mtk_id_get(data, 0x70010200, &val); if (!val) bt_dev_err(hdev, "Can't get device id, subsys reset fail."); @@ -3128,8 +3140,10 @@ static int btusb_mtk_setup(struct hci_dev *hdev) fwname = FIRMWARE_MT7668; break; case 0x7922: - case 0x7961: case 0x7925: + btusb_mtk_subsys_reset(hdev, dev_id); + fallthrough; + case 0x7961: if (dev_id == 0x7925) snprintf(fw_bin_name, sizeof(fw_bin_name), "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin", @@ -3143,6 +3157,11 @@ static int btusb_mtk_setup(struct hci_dev *hdev) btusb_mtk_hci_wmt_sync); if (err < 0) { bt_dev_err(hdev, "Failed to set up firmware (%d)", err); + if (dev_id == 0x7922 || dev_id == 0x7925) { + btusb_stop_traffic(data); + usb_kill_anchored_urbs(&data->tx_anchor); + usb_queue_reset_device(data->intf); + } return err; }