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: 13509005 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 6CBACC46CD2 for ; Tue, 2 Jan 2024 12:49:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:CC:To:From:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=3ntL+5uaAV9DSRO6KwCdZOXUOQstLPvq7hVMkRfPMeA=; b=R0enoRrdZUMVqrLjxvapSkBcS3 9056UiwnH77QDHCnfTVgyjj4QMpBC4i/7nvx8JKjjRLR/AJgheVOng3MTyiQgdnJrfitg8L9xfVWN 7r42CzTTFY2CDDS2qWlbDTLxS0lFaunutzcHelkcb6xAlAAD4TkQ5IdddjDjWsWnTmLVXDYHP7jf2 C9atb+usSQ06a8N7PSvwMKr9gx1V4ZeaTWsRrGe6UZEghUF5gnq3C00BAhgFS8T3WPaY8g5ylsds+ WU4cdq05IPNukcNcqm9DcnQAu5D1Qoa3hIuSmQSuFE5pwwnHZ93DhU8IIccE0YMCnzKy58dDhzU+l EkHe9TRQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rKeD6-008202-1u; Tue, 02 Jan 2024 12:49:32 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rKeD4-0081yw-2G for linux-mediatek@lists.infradead.org; Tue, 02 Jan 2024 12:49:32 +0000 X-UUID: 5ac6751ca96d11ee9a662f17bb45267e-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:680339b9-436c-4d08-a65d-d322192e37c3,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:8e25b92e-1ab8-4133-9780-81938111c800,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: 5ac6751ca96d11ee9a662f17bb45267e-20240102 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1818757804; Tue, 02 Jan 2024 05:49:23 -0700 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> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240102_044930_739444_0178947E X-CRM114-Status: GOOD ( 12.30 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org 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; }