[PATCH 3/6] Bluetooth: btusb: Add an indirect recv_intr() hook to btusb_data

[Zijun Hu]

Allow a vendor driver to assemble and handle its non-BT frames from the
interrupt endpoint.

Signed-off-by: Zijun Hu <zijun.hu@xxxxxxxxxxxxxxxx>
---
 drivers/bluetooth/btusb.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 9726a007d25a..e5642d966153 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -1030,6 +1030,7 @@ struct btusb_data {
 
 	int (*recv_event)(struct hci_dev *hdev, struct sk_buff *skb);
 	int (*recv_acl)(struct hci_dev *hdev, struct sk_buff *skb);
+	int (*recv_intr)(struct btusb_data *data, void *buffer, int count);
 	int (*recv_bulk)(struct btusb_data *data, void *buffer, int count);
 
 	int (*setup_on_usb)(struct hci_dev *hdev);
@@ -1502,7 +1503,7 @@ static void btusb_intr_complete(struct urb *urb)
 	if (urb->status == 0) {
 		hdev->stat.byte_rx += urb->actual_length;
 
-		if (btusb_recv_intr(data, urb->transfer_buffer,
+		if (data->recv_intr(data, urb->transfer_buffer,
 				    urb->actual_length) < 0) {
 			bt_dev_err(hdev, "corrupted event packet");
 			hdev->stat.err_rx++;
@@ -2709,7 +2710,7 @@ static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer,
 	 * same way as the ones received from the interrupt endpoint.
 	 */
 	if (btintel_test_flag(hdev, INTEL_BOOTLOADER))
-		return btusb_recv_intr(data, buffer, count);
+		return data->recv_intr(data, buffer, count);
 
 	return btusb_recv_bulk(data, buffer, count);
 }
@@ -4172,6 +4173,7 @@ static int btusb_probe(struct usb_interface *intf,
 	spin_lock_init(&data->rxlock);
 
 	data->recv_event = hci_recv_frame;
+	data->recv_intr = btusb_recv_intr;
 	data->recv_bulk = btusb_recv_bulk;
 
 	if (id->driver_info & BTUSB_INTEL_COMBINED) {

-- 
2.34.1