From patchwork Fri Oct 8 22:10:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12546611 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72C80C433FE for ; Fri, 8 Oct 2021 22:11:38 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 470A361139 for ; Fri, 8 Oct 2021 22:11:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 470A361139 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=g92m4eq1I17CY4r3Hdcw3uXnmB6q6ryK1F5km1yaDo4=; b=o1eB8xZFtV/fAZ ABpHX+iFvSTgIW66ju9PWiBc5/Zg9+yuSa1EIjQ01jgdKOzz+cgbNApz88rff8qF6fr993y1pFYpm khS1s7iTBYCt7LLiYtQXFQ934IJryxjJ3kCwj76fJemATsCPxAo+XdH65sOs7mMWafwrDLBLgPuPP +NUdpm8T1h0pNh2S/wBSNPPqpXBZnfawmJpSxDiJgtYwAFlRlIQYy5eYT53796UkG3rMvjQnS30hQ FHRp/lUcOSxuV+pbO1Vjifc5KVn65PwVmMzJXhNTZf4eGsNWvgDJBX5Pt1J2Z7WUUCEsgMFyR/b87 W3cQba6gzMKn4s9y82Fg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYy5P-004Gup-Hz; Fri, 08 Oct 2021 22:11:27 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mYy5K-004Gr5-Ih for linux-mediatek@lists.infradead.org; Fri, 08 Oct 2021 22:11:24 +0000 X-UUID: 8a09d0ecb89647dd85a16dd90cc2e80a-20211008 X-UUID: 8a09d0ecb89647dd85a16dd90cc2e80a-20211008 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 285797283; Fri, 08 Oct 2021 15:11:18 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 8 Oct 2021 15:10:53 -0700 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 9 Oct 2021 06:10:53 +0800 From: To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , Mark-yw Chen Subject: [PATCH v1 08/10] Bluetooth: btmtksdio: transmit packet according to the status TX_EMPTY Date: Sat, 9 Oct 2021 06:10:15 +0800 Message-ID: <0f16a1070b325660fed4584ca4cc7480326538a7.1633728573.git.objelf@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211008_151122_664487_8840FE21 X-CRM114-Status: GOOD ( 15.12 ) 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: Mark-yw Chen Each packet should be sent out until the device emits the TX_EMPTY signal to the host, that is firmware people suggested to add to meet the actual firmware behavior and that is compatible among all the devices. Co-developed-by: Sean Wang Signed-off-by: Sean Wang Signed-off-by: Mark-yw Chen --- drivers/bluetooth/btmtksdio.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index f816a7cb0a74..3266c5d83cae 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -103,6 +103,7 @@ struct btmtksdio_dev { struct work_struct txrx_work; unsigned long tx_state; struct sk_buff_head txq; + bool hw_tx_ready; struct sk_buff *evt_skb; @@ -229,6 +230,7 @@ static int btmtksdio_tx_packet(struct btmtksdio_dev *bdev, sdio_hdr->reserved = cpu_to_le16(0); sdio_hdr->bt_type = hci_skb_pkt_type(skb); + bdev->hw_tx_ready = false; err = sdio_writesb(bdev->func, MTK_REG_CTDR, skb->data, round_up(skb->len, MTK_SDIO_BLOCK_SIZE)); if (err < 0) @@ -417,15 +419,6 @@ static void btmtksdio_txrx_work(struct work_struct *work) /* Disable interrupt */ sdio_writel(bdev->func, C_INT_EN_CLR, MTK_REG_CHLPCR, 0); - while ((skb = skb_dequeue(&bdev->txq))) { - err = btmtksdio_tx_packet(bdev, skb); - if (err < 0) { - bdev->hdev->stat.err_tx++; - skb_queue_head(&bdev->txq, skb); - break; - } - } - txrx_timeout = jiffies + 5 * HZ; do { @@ -446,10 +439,21 @@ static void btmtksdio_txrx_work(struct work_struct *work) bt_dev_dbg(bdev->hdev, "Get fw own back"); if (int_status & TX_EMPTY) - schedule_work(&bdev->txrx_work); + bdev->hw_tx_ready = true; else if (unlikely(int_status & TX_FIFO_OVERFLOW)) bt_dev_warn(bdev->hdev, "Tx fifo overflow"); + if (bdev->hw_tx_ready) { + skb = skb_dequeue(&bdev->txq); + if (skb) { + err = btmtksdio_tx_packet(bdev, skb); + if (err < 0) { + bdev->hdev->stat.err_tx++; + skb_queue_head(&bdev->txq, skb); + } + } + } + if (int_status & RX_DONE_INT) { rx_size = sdio_readl(bdev->func, MTK_REG_CRPLR, NULL); rx_size = (rx_size & RX_PKT_LEN) >> 16; @@ -642,6 +646,7 @@ static int btmtksdio_setup(struct hci_dev *hdev) u8 param = 0x1; calltime = ktime_get(); + bdev->hw_tx_ready = true; /* Query whether the firmware is already download */ wmt_params.op = BTMTK_WMT_SEMAPHORE;