diff options
| author |   Jakub Pawlowski <jpawlowski@google.com> | 2015-03-17 09:04:14 -0700 |
|---|---|---|
| committer |   Johan Hedberg <johan.hedberg@intel.com> | 2015-03-17 18:31:00 +0200 |
| commit | 07d2334ae747772fc4426077340aa3efe499f50b (patch) | |
| tree | a6d218d89270d7713d418ce44034691f101142b5 /net/bluetooth/mgmt.c | |
| parent | Bluetooth: Refactor BR/EDR inquiry and LE scan triggering. (diff) | |
| download | linux-dev-07d2334ae747772fc4426077340aa3efe499f50b.tar.xz linux-dev-07d2334ae747772fc4426077340aa3efe499f50b.zip | |
Bluetooth: Add simultaneous dual mode scan
When doing scan through mgmt api, some controllers can do both le and
classic scan at same time. They can be distinguished by
HCI_QUIRK_SIMULTANEOUS_DISCOVERY set.
This patch enables them to use this feature when doing dual mode scan.
Instead of doing le, then classic scan, both scans are run at once.
Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | net/bluetooth/mgmt.c | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 5a4b9d5a224f..7bcdf61afe11 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1408,9 +1408,10 @@ static bool hci_stop_discovery(struct hci_request *req) switch (hdev->discovery.state) { case DISCOVERY_FINDING: - if (test_bit(HCI_INQUIRY, &hdev->flags)) { + if (test_bit(HCI_INQUIRY, &hdev->flags)) hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL); - } else { + + if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) { cancel_delayed_work(&hdev->le_scan_disable); hci_req_add_le_scan_disable(req); } @@ -4019,6 +4020,22 @@ static bool trigger_discovery(struct hci_request *req, u8 *status) break; case DISCOV_TYPE_INTERLEAVED: + if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, + &hdev->quirks)) { + /* During simultaneous discovery, we double LE scan + * interval. We must leave some time for the controller + * to do BR/EDR inquiry. + */ + if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT * 2, + status)) + return false; + + if (!trigger_bredr_inquiry(req, status)) + return false; + + return true; + } + if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) { *status = MGMT_STATUS_NOT_SUPPORTED; return false; @@ -4072,7 +4089,18 @@ static void start_discovery_complete(struct hci_dev *hdev, u8 status, timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT); break; case DISCOV_TYPE_INTERLEAVED: - timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout); + /* When running simultaneous discovery, the LE scanning time + * should occupy the whole discovery time sine BR/EDR inquiry + * and LE scanning are scheduled by the controller. + * + * For interleaving discovery in comparison, BR/EDR inquiry + * and LE scanning are done sequentially with separate + * timeouts. + */ + if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks)) + timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT); + else + timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout); break; case DISCOV_TYPE_BREDR: timeout = 0; |