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- From 5cb03751455c299b1bf10cb48631bf359cfb11b5 Mon Sep 17 00:00:00 2001
- From: "mark-yw.chen" <[email protected]>
- Date: Wed, 1 Sep 2021 11:32:25 +0800
- Subject: [PATCH 1/5] 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: mark-yw.chen <[email protected]>
- Signed-off-by: Marcel Holtmann <[email protected]>
- ---
- drivers/bluetooth/btusb.c | 18 ++++++++++++++++++
- 1 file changed, 18 insertions(+)
- --- a/drivers/bluetooth/btusb.c
- +++ b/drivers/bluetooth/btusb.c
- @@ -2263,6 +2263,23 @@ 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;
- @@ -3914,6 +3931,7 @@ static int btusb_probe(struct usb_interf
- 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;
- }
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