Bluetooth: Add support for custom event terminated commands
This patch adds support for having commands within HCI requests that do
not result in a command complete but some other event. This is at least
needed for some vendor specific commands to be issued in the
hdev->setup() procecure, but might also be useful for other commands.
The way that the support is implemented is by extending the skb control
buffer to have a field to indicate that the command is expected to
terminate with a special event. After sending the command each received
event can then be compared against this field through hdev->sent_cmd.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index ed0efb7..0a2b128d 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2463,7 +2463,9 @@
if (opcode != HCI_OP_NOP)
del_timer(&hdev->cmd_timer);
- hci_req_cmd_complete(hdev, opcode, ev->status);
+ if (ev->status ||
+ (hdev->sent_cmd && !bt_cb(hdev->sent_cmd)->req.event))
+ hci_req_cmd_complete(hdev, opcode, ev->status);
if (ev->ncmd && !test_bit(HCI_RESET, &hdev->flags)) {
atomic_set(&hdev->cmd_cnt, 1);
@@ -3713,6 +3715,13 @@
skb_pull(skb, HCI_EVENT_HDR_SIZE);
+ if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
+ struct hci_command_hdr *hdr = (void *) hdev->sent_cmd->data;
+ u16 opcode = __le16_to_cpu(hdr->opcode);
+
+ hci_req_cmd_complete(hdev, opcode, 0);
+ }
+
switch (event) {
case HCI_EV_INQUIRY_COMPLETE:
hci_inquiry_complete_evt(hdev, skb);