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

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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>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
mark-yw.chen 2021-09-01 11:32:25 +08:00 committed by Marcel Holtmann
parent 1bff51ea59
commit 5a87679ffd
1 changed files with 18 additions and 0 deletions
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18
drivers/bluetooth/btusb.c
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@ -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;
}