Bluetooth: Introduce new hci_req_add function
This function is analogous to hci_send_cmd() but instead of directly
queuing the command to hdev->cmd_q it adds it to the local queue of the
asynchronous HCI request being build (inside struct hci_request).
This is the main function used for building asynchronous requests and
there should be one or more calls to it between calls to hci_req_init
and hci_req_run.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index d2edcc4..6e6a9dd 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2517,6 +2517,28 @@
return 0;
}
+/* Queue a command to an asynchronous HCI request */
+int hci_req_add(struct hci_request *req, u16 opcode, u32 plen, void *param)
+{
+ struct hci_dev *hdev = req->hdev;
+ struct sk_buff *skb;
+
+ BT_DBG("%s opcode 0x%4.4x plen %d", hdev->name, opcode, plen);
+
+ skb = hci_prepare_cmd(hdev, opcode, plen, param);
+ if (!skb) {
+ BT_ERR("%s no memory for command", hdev->name);
+ return -ENOMEM;
+ }
+
+ if (skb_queue_empty(&req->cmd_q))
+ bt_cb(skb)->req.start = true;
+
+ skb_queue_tail(&req->cmd_q, skb);
+
+ return 0;
+}
+
/* Get data from the previously sent command */
void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode)
{