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Bluetooth: Add initial skeleton for asynchronous HCI requests

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This patch adds the initial definitions and functions for asynchronous
HCI requests. Asynchronous requests are essentially a group of HCI
commands together with an optional completion callback. The request is
tracked through the already existing command queue by having the
necessary context information as part of the control buffer of each skb.

The only information needed in the skb control buffer is a flag for
indicating that the skb is the start of a request as well as the
optional complete callback that should be used when the request is
complete (this will be found in the last skb of the request).

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>
This commit is contained in:
Johan Hedberg
2013-03-05 20:37:44 +02:00
committed by Gustavo Padovan
parent 2177bab507
commit 3119ae9599
3 changed files with 48 additions and 0 deletions
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10
include/net/bluetooth/bluetooth.h
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@@ -260,12 +260,22 @@ struct l2cap_ctrl {
__u8 retries;
};
struct hci_dev;
typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status);
struct hci_req_ctrl {
bool start;
hci_req_complete_t complete;
};
struct bt_skb_cb {
__u8 pkt_type;
__u8 incoming;
__u16 expect;
__u8 force_active;
struct l2cap_ctrl control;
struct hci_req_ctrl req;
};
#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))