| Message ID | 20210901033226.20693-1-mark-yw.chen@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2,1/2] Bluetooth: btusb: Support public address configuration for MediaTek Chip. | expand |
Hi Mark, > 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 <mark-yw.chen@mediatek.com> > --- > drivers/bluetooth/btusb.c | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) patch has been applied to bluetooth-next tree. Regards Marcel
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 60d2fce59a71..41e7c9f28d82 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -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; }