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Bluetooth: btmtksdio: use register CRPLR to read packet length 

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>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Sean Wang 2021-10-19 05:30:18 +08:00 committed by Marcel Holtmann
parent 5b23ac1adb
commit 184ea403cc
1 changed files with 5 additions and 4 deletions
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9
drivers/bluetooth/btmtksdio.c
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@ -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 */