Commit 5a87679f authored by mark-yw.chen's avatar mark-yw.chen Committed by Marcel Holtmann
Browse files

Bluetooth: btusb: Support public address configuration for MediaTek Chip. 



The MediaTek chip support vendor specific HCI command(0xfc1a) to
change the public address. Add hdev->set_bdaddr handler for MediaTek
Chip. After doing a power cycle or MediaTek Bluetooth reset, BD_ADDR
will bring back the original one.

Signed-off-by: default avatarmark-yw.chen <mark-yw.chen@mediatek.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 1bff51ea

drivers/bluetooth/btusb.c

+18 −0
Original line number Diff line number Diff line
@@ -2200,6 +2200,23 @@ struct btmtk_section_map { 
	};

} __packed;



static int btusb_set_bdaddr_mtk(struct hci_dev *hdev, const bdaddr_t *bdaddr)

{

	struct sk_buff *skb;

	long ret;



	skb = __hci_cmd_sync(hdev, 0xfc1a, sizeof(bdaddr), bdaddr, HCI_INIT_TIMEOUT);

	if (IS_ERR(skb)) {

		ret = PTR_ERR(skb);

		bt_dev_err(hdev, "changing Mediatek device address failed (%ld)",

			   ret);

		return ret;

	}

	kfree_skb(skb);



	return 0;

}



static void btusb_mtk_wmt_recv(struct urb *urb)

{

	struct hci_dev *hdev = urb->context;
@@ -3819,6 +3836,7 @@ static int btusb_probe(struct usb_interface *intf, 
		hdev->shutdown = btusb_mtk_shutdown;

		hdev->manufacturer = 70;

		hdev->cmd_timeout = btusb_mtk_cmd_timeout;

		hdev->set_bdaddr = btusb_set_bdaddr_mtk;

		set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);

		data->recv_acl = btusb_recv_acl_mtk;

	}