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From: <sean.wang@mediatek.com>
To: <marcel@holtmann.org>, <johan.hedberg@gmail.com>
Cc: <Mark-YW.Chen@mediatek.com>, <sean.wang@mediatek.com>,
	<Soul.Huang@mediatek.com>, <YN.Chen@mediatek.com>,
	<Leon.Yen@mediatek.com>, <Eric-SY.Chang@mediatek.com>,
	<Deren.Wu@mediatek.com>, <km.lin@mediatek.com>,
	<robin.chiu@mediatek.com>, <Eddie.Chen@mediatek.com>,
	<ch.yeh@mediatek.com>, <posh.sun@mediatek.com>,
	<ted.huang@mediatek.com>, <Eric.Liang@mediatek.com>,
	<Stella.Chang@mediatek.com>, <Tom.Chou@mediatek.com>,
	<steve.lee@mediatek.com>, <jsiuda@google.com>,
	<frankgor@google.com>, <jemele@google.com>,
	<abhishekpandit@google.com>, <michaelfsun@google.com>,
	<mcchou@chromium.org>, <shawnku@google.com>,
	<linux-bluetooth@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	Mark-yw Chen <mark-yw.chen@mediatek.com>
Subject: [PATCH v2 07/10] Bluetooth: btmtksdio: use register CRPLR to read packet length
Date: Tue, 19 Oct 2021 05:30:18 +0800	[thread overview]
Message-ID: <69d548d8fa18183069fa27f76e8bb919d881c78d.1634592181.git.objelf@gmail.com> (raw)
In-Reply-To: <cover.1634592181.git.objelf@gmail.com>

From: Sean Wang <sean.wang@mediatek.com>

That is a preliminary patch to introduce mt7921s support.

Use the register CRPLR to read packet length to make all the devices
share the common logic.

Co-developed-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Mark-yw Chen <mark-yw.chen@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/bluetooth/btmtksdio.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 3381c8844902..f816a7cb0a74 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -83,6 +83,8 @@ MODULE_DEVICE_TABLE(sdio, btmtksdio_table);
 
 #define MTK_REG_CRDR		0x1c
 
+#define MTK_REG_CRPLR		0x24
+
 #define MTK_SDIO_BLOCK_SIZE	256
 
 #define BTMTKSDIO_TX_WAIT_VND_EVT	1
@@ -404,9 +406,8 @@ static void btmtksdio_txrx_work(struct work_struct *work)
 	struct btmtksdio_dev *bdev = container_of(work, struct btmtksdio_dev,
 						  txrx_work);
 	unsigned long txrx_timeout;
+	u32 int_status, rx_size;
 	struct sk_buff *skb;
-	u32 int_status;
-	u16 rx_size;
 	int err;
 
 	pm_runtime_get_sync(bdev->dev);
@@ -450,11 +451,11 @@ static void btmtksdio_txrx_work(struct work_struct *work)
 			bt_dev_warn(bdev->hdev, "Tx fifo overflow");
 
 		if (int_status & RX_DONE_INT) {
-			rx_size = (int_status & RX_PKT_LEN) >> 16;
+			rx_size = sdio_readl(bdev->func, MTK_REG_CRPLR, NULL);
+			rx_size = (rx_size & RX_PKT_LEN) >> 16;
 			if (btmtksdio_rx_packet(bdev, rx_size) < 0)
 				bdev->hdev->stat.err_rx++;
 		}
-
 	} while (int_status || time_is_before_jiffies(txrx_timeout));
 
 	/* Enable interrupt */
-- 
2.25.1


  parent reply	other threads:[~2021-10-18 21:37 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-18 21:30 [PATCH v2 00/10] Add MT7921 SDIO Bluetooth support sean.wang
2021-10-18 21:30 ` [PATCH v2 01/10] Bluetooth: mediatek: add BT_MTK module sean.wang
2021-10-18 21:30 ` [PATCH v2 02/10] Bluetooth: btmtksido: rely on " sean.wang
2021-10-18 21:30 ` [PATCH v2 03/10] Bluetooth: btmtksdio: add .set_bdaddr support sean.wang
2021-10-18 21:30 ` [PATCH v2 04/10] Bluetooth: btmtksdio: explicitly set WHISR as write-1-clear sean.wang
2021-10-18 21:30 ` [PATCH v2 05/10] Bluetooth: btmtksdio: move interrupt service to work sean.wang
2021-10-18 21:30 ` [PATCH v2 06/10] Bluetooth: btmtksdio: update register CSDIOCSR operation sean.wang
2021-10-18 21:30 ` sean.wang [this message]
2021-10-18 21:30 ` [PATCH v2 08/10] Bluetooth: btmtksdio: transmit packet according to status TX_EMPTY sean.wang
2021-10-18 21:30 ` [PATCH v2 09/10] mmc: add MT7921 SDIO identifiers for MediaTek Bluetooth devices sean.wang
2021-10-18 21:30 ` [PATCH v2 10/10] Bluetooth: btmtksdio: add MT7921s Bluetooth support sean.wang
2021-10-25 13:37 ` [PATCH v2 00/10] Add MT7921 SDIO " Marcel Holtmann

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