[PATCH v5 1/4] Bluetooth: btusb: Add recv_intr() hook to btusb_data
From: Zijun Hu <hidden>
Date: 2026-09-11 08:00:13
Also in:
lkml
Subsystem:
bluetooth drivers, the rest · Maintainers:
Marcel Holtmann, Luiz Augusto von Dentz, Linus Torvalds
To allow a vendor driver to assemble and handle its non-BT frames from the interrupt endpoint. Used by Qualcomm QCC2072 support. Signed-off-by: Zijun Hu <redacted> --- 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 83d122de5d7d..5efcf31e432b 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c@@ -1067,16 +1067,17 @@ struct btusb_data { unsigned int air_mode; bool usb_alt6_packet_flow; int isoc_altsetting; int suspend_count; const struct usb_device_id *match_id; 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); int (*suspend)(struct hci_dev *hdev); int (*resume)(struct hci_dev *hdev); int (*disconnect)(struct hci_dev *hdev);
@@ -1577,17 +1578,17 @@ static void btusb_intr_complete(struct urb *urb) urb->actual_length); if (!test_bit(HCI_RUNNING, &hdev->flags)) return; 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++; } } else if (urb->status == -ENOENT) { /* Avoid suspend failed when usb_kill_urb */ return; }
@@ -2846,17 +2847,17 @@ static int btusb_recv_bulk_intel(struct btusb_data *data, void *buffer, * same way as the ones received from the interrupt endpoint. * * In H:4 mode there is no interrupt endpoint and every frame on the * bulk endpoint carries an H:4 header, including the ones sent by the * bootloader, so the regular decoding applies. */ if (data->proto == BTUSB_PROTO_LEGACY && 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); } static int btusb_send_frame_intel(struct hci_dev *hdev, struct sk_buff *skb) { struct urb *urb;
@@ -4387,16 +4388,17 @@ static int btusb_probe(struct usb_interface *intf, init_usb_anchor(&data->intr_anchor); init_usb_anchor(&data->bulk_anchor); init_usb_anchor(&data->isoc_anchor); init_usb_anchor(&data->diag_anchor); init_usb_anchor(&data->ctrl_anchor); 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) { /* Allocate extra space for Intel device */ priv_size += sizeof(struct btintel_data); /* Override the rx handlers */ data->recv_event = btintel_recv_event;
--
2.34.1