diff options
| author | Andre Guedes <andre.guedes@openbossa.org> | 2012-02-03 17:48:00 -0300 |
|---|---|---|
| committer | Johan Hedberg <johan.hedberg@intel.com> | 2012-02-13 17:01:34 +0200 |
| commit | 28b75a89480df99a17c8facd5c33985847d06bb6 (patch) | |
| tree | ddb050dd79624ed01e12d1d072f8be646a15815f /include/net | |
| parent | 7ba8b4be38e7c83b2b13333a82a0ecde921a7390 (diff) | |
Bluetooth: Add hci_le_scan()
We are not supposed to block in start_discovery() because
start_discovery code is running in write() syscall context
and this would block the write operation on the mgmt socket.
This way, we cannot directly call hci_do_le_scan() to scan
LE devices in start_discovery(). To overcome this issue a
derefered work (hdev->le_scan) was created so we can properly
call hci_do_le_scan().
The helper function hci_le_scan() simply set LE scan parameters
and queue hdev->le_scan work. The work is queued on system_long_wq
since it can sleep for a few seconds in the worst case (timeout).
Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 3e70872bffea..7107790817a5 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -126,6 +126,7 @@ struct le_scan_params { u8 type; u16 interval; u16 window; + int timeout; }; #define NUM_REASSEMBLY 4 @@ -269,6 +270,9 @@ struct hci_dev { struct delayed_work le_scan_disable; + struct work_struct le_scan; + struct le_scan_params le_scan_params; + int (*open)(struct hci_dev *hdev); int (*close)(struct hci_dev *hdev); int (*flush)(struct hci_dev *hdev); @@ -1033,5 +1037,7 @@ void hci_le_ltk_neg_reply(struct hci_conn *conn); int hci_do_inquiry(struct hci_dev *hdev, u8 length); int hci_cancel_inquiry(struct hci_dev *hdev); +int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window, + int timeout); #endif /* __HCI_CORE_H */ |