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Bluetooth: btusb: add shutdown function for wcn6855

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we should send hci reset command before bt turn off, which can reset bt
firmware status.

Signed-off-by: Tim Jiang <tjiang@codeaurora.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Tim Jiang 2020-12-18 18:12:11 +08:00 committed by Marcel Holtmann
parent 295fa2a564
commit 3b0d5250be
1 changed files with 15 additions and 0 deletions
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15
drivers/bluetooth/btusb.c
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@ -4260,6 +4260,20 @@ static bool btusb_prevent_wake(struct hci_dev *hdev)
return !device_may_wakeup(&data->udev->dev);
}
static int btusb_shutdown_qca(struct hci_dev *hdev)
{
struct sk_buff *skb;
skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
if (IS_ERR(skb)) {
bt_dev_err(hdev, "HCI reset during shutdown failed");
return PTR_ERR(skb);
}
kfree_skb(skb);
return 0;
}
static int btusb_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
@ -4519,6 +4533,7 @@ static int btusb_probe(struct usb_interface *intf,
if (id->driver_info & BTUSB_QCA_WCN6855) {
data->setup_on_usb = btusb_setup_qca;
hdev->shutdown = btusb_shutdown_qca;
hdev->set_bdaddr = btusb_set_bdaddr_wcn6855;
hdev->cmd_timeout = btusb_qca_cmd_timeout;
set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);