diff options
| author | Johan Hedberg <johan.hedberg@intel.com> | 2014-07-02 23:42:02 +0400 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2014-07-03 19:42:59 +0400 |
| commit | 0d2bf13462732d3b2e11d8efb0545c1ed272298b (patch) | |
| tree | 1065349727cfb7a56059809823ae94ab2d837ff2 | |
| parent | 75ce208cc44938195f57c55f81c8e4447dd492fb (diff) | |
| download | linux-0d2bf13462732d3b2e11d8efb0545c1ed272298b.tar.xz | |
Bluetooth: Add support for background LE scanning
If we have one or more devices with HCI_AUTO_CONN_REPORT we should do
background scanning and emit mgmt_device_found events. This patch
modifies the hci_update_background_scan() function to extend the
conditions needed to trigger scanning, and adds the necessary code to
process_adv_report() to emit mgmt_device_found events.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
| -rw-r--r-- | net/bluetooth/hci_core.c | 7 | ||||
| -rw-r--r-- | net/bluetooth/hci_event.c | 25 |
2 files changed, 27 insertions, 5 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 8e0061f72dd1..41cc64429ea1 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -5380,9 +5380,10 @@ void hci_update_background_scan(struct hci_dev *hdev) hci_req_init(&req, hdev); - if (list_empty(&hdev->pend_le_conns)) { - /* If there is no pending LE connections, we should stop - * the background scanning. + if (list_empty(&hdev->pend_le_conns) && !hdev->pend_le_reports) { + /* If there is no pending LE connections or devices + * to be scanned for, we should stop the background + * scanning. */ /* If controller is not scanning we are done. */ diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 846f6a6af881..87a704bd7eb7 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -4225,11 +4225,32 @@ static void process_adv_report(struct hci_dev *hdev, u8 type, bdaddr_t *bdaddr, bool match; u32 flags; - /* Passive scanning shouldn't trigger any device found events */ + /* Passive scanning shouldn't trigger any device found events, + * except for devices marked as CONN_REPORT for which we do send + * device found events. + */ if (hdev->le_scan_type == LE_SCAN_PASSIVE) { + struct hci_conn_params *param; + if (type == LE_ADV_IND || type == LE_ADV_DIRECT_IND) check_pending_le_conn(hdev, bdaddr, bdaddr_type); - return; + + if (!hdev->pend_le_reports) + return; + + if (type == LE_ADV_DIRECT_IND) + return; + + param = hci_conn_params_lookup(hdev, bdaddr, bdaddr_type); + if (!param || param->auto_connect != HCI_AUTO_CONN_REPORT) + return; + + if (type == LE_ADV_NONCONN_IND || type == LE_ADV_SCAN_IND) + flags = MGMT_DEV_FOUND_NOT_CONNECTABLE; + else + flags = 0; + mgmt_device_found(hdev, bdaddr, LE_LINK, bdaddr_type, NULL, + rssi, flags, data, len, NULL, 0); } /* When receiving non-connectable or scannable undirected |