openwrt/target/linux/generic/backport-5.15/821-v5.16-Bluetooth-btusb-Support-public-address-configuration.patch
John Audia b6fa423907 kernel: bump 5.15 to 5.15.83
Removed upstreamed:
	backport-5.15/883-v6.1-ca8210-Fix-crash-by-zero-initializing-data.patch[1]

All patches automatically rebased

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.83&id=246bcd05ba6cc43b34ac0bb4bac3ea94a4efa07c

Build system: x86_64
Build-tested: bcm2711/RPi4B
Run-tested: bcm2711/RPi4B

Signed-off-by: John Audia <therealgraysky@proton.me>
2022-12-14 23:34:50 +01:00

52 lines
1.6 KiB
Diff

From 5cb03751455c299b1bf10cb48631bf359cfb11b5 Mon Sep 17 00:00:00 2001
From: "mark-yw.chen" <mark-yw.chen@mediatek.com>
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 <mark-yw.chen@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
drivers/bluetooth/btusb.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2268,6 +2268,23 @@ 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;
@@ -3919,6 +3936,7 @@ 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;
}