Bluetooth: btmtk: move btusb_recv_acl_mtk to btmtk.c

Move btusb_recv_acl_mtk from btusb.c to btmtk.c which holds
vendor specific stuff and would make btusb.c clean.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Chris Lu <chris.lu@mediatek.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
index f5ecb8227d3b..fe3b892f6c6e 100644
--- a/drivers/bluetooth/btmtk.c
+++ b/drivers/bluetooth/btmtk.c
@@ -930,6 +930,39 @@ int btmtk_usb_subsys_reset(struct hci_dev *hdev, u32 dev_id)
 }
 EXPORT_SYMBOL_GPL(btmtk_usb_subsys_reset);
 
+int btmtk_usb_recv_acl(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct btmtk_data *data = hci_get_priv(hdev);
+	u16 handle = le16_to_cpu(hci_acl_hdr(skb)->handle);
+
+	switch (handle) {
+	case 0xfc6f:		/* Firmware dump from device */
+		/* When the firmware hangs, the device can no longer
+		 * suspend and thus disable auto-suspend.
+		 */
+		usb_disable_autosuspend(data->udev);
+
+		/* We need to forward the diagnostic packet to userspace daemon
+		 * for backward compatibility, so we have to clone the packet
+		 * extraly for the in-kernel coredump support.
+		 */
+		if (IS_ENABLED(CONFIG_DEV_COREDUMP)) {
+			struct sk_buff *skb_cd = skb_clone(skb, GFP_ATOMIC);
+
+			if (skb_cd)
+				btmtk_process_coredump(hdev, skb_cd);
+		}
+
+		fallthrough;
+	case 0x05ff:		/* Firmware debug logging 1 */
+	case 0x05fe:		/* Firmware debug logging 2 */
+		return hci_recv_diag(hdev, skb);
+	}
+
+	return hci_recv_frame(hdev, skb);
+}
+EXPORT_SYMBOL_GPL(btmtk_usb_recv_acl);
+
 int btmtk_usb_setup(struct hci_dev *hdev)
 {
 	struct btmtk_data *btmtk_data = hci_get_priv(hdev);