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f755c41038
Backport commits from linux.git adding support for various MT7921 Bluetooth USB IDs. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
52 lines
1.6 KiB
Diff
52 lines
1.6 KiB
Diff
From 5cb03751455c299b1bf10cb48631bf359cfb11b5 Mon Sep 17 00:00:00 2001
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From: "mark-yw.chen" <mark-yw.chen@mediatek.com>
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Date: Wed, 1 Sep 2021 11:32:25 +0800
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Subject: [PATCH 1/5] Bluetooth: btusb: Support public address configuration
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for MediaTek Chip.
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The MediaTek chip support vendor specific HCI command(0xfc1a) to
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change the public address. Add hdev->set_bdaddr handler for MediaTek
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Chip. After doing a power cycle or MediaTek Bluetooth reset, BD_ADDR
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will bring back the original one.
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Signed-off-by: mark-yw.chen <mark-yw.chen@mediatek.com>
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Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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---
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drivers/bluetooth/btusb.c | 18 ++++++++++++++++++
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1 file changed, 18 insertions(+)
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--- a/drivers/bluetooth/btusb.c
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+++ b/drivers/bluetooth/btusb.c
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@@ -2263,6 +2263,23 @@ struct btmtk_section_map {
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};
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} __packed;
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+static int btusb_set_bdaddr_mtk(struct hci_dev *hdev, const bdaddr_t *bdaddr)
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+{
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+ struct sk_buff *skb;
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+ long ret;
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+
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+ skb = __hci_cmd_sync(hdev, 0xfc1a, sizeof(bdaddr), bdaddr, HCI_INIT_TIMEOUT);
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+ if (IS_ERR(skb)) {
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+ ret = PTR_ERR(skb);
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+ bt_dev_err(hdev, "changing Mediatek device address failed (%ld)",
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+ ret);
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+ return ret;
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+ }
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+ kfree_skb(skb);
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+
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+ return 0;
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+}
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+
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static void btusb_mtk_wmt_recv(struct urb *urb)
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{
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struct hci_dev *hdev = urb->context;
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@@ -3900,6 +3917,7 @@ static int btusb_probe(struct usb_interf
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hdev->shutdown = btusb_mtk_shutdown;
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hdev->manufacturer = 70;
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hdev->cmd_timeout = btusb_mtk_cmd_timeout;
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+ hdev->set_bdaddr = btusb_set_bdaddr_mtk;
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set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
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data->recv_acl = btusb_recv_acl_mtk;
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}
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