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Bluetooth: Add le_scan_restart work for LE scan restarting

Browse source 
Currently there is no way to restart le scan, and it's needed in
service scan method. The way it work: it disable, and then enable le
scan on controller.

During the restart, we must remember when the scan was started, and
it's duration, to later re-schedule the le_scan_disable work, that was
stopped during the stop scan phase.

Signed-off-by: Jakub Pawlowski <jpawlowski@google.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Jakub Pawlowski 2015-02-01 23:07:54 -08:00 • committed by Marcel Holtmann
commit 2d28cfe7aa
3 changed files with 97 additions and 1 deletions
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5
include/net/bluetooth/hci_core.h
View file

@ -79,6 +79,8 @@ struct discovery_state {
s8 rssi;
u16 uuid_count;
u8 (*uuids)[16];
unsigned long scan_start;
unsigned long scan_duration;
};
struct hci_conn_hash {
@ -354,6 +356,7 @@ struct hci_dev {
unsigned long dev_flags;
struct delayed_work le_scan_disable;
struct delayed_work le_scan_restart;
__s8 adv_tx_power;
__u8 adv_data[HCI_MAX_AD_LENGTH];
@ -531,6 +534,8 @@ static inline void hci_discovery_filter_clear(struct hci_dev *hdev)
hdev->discovery.uuid_count = 0;
kfree(hdev->discovery.uuids);
hdev->discovery.uuids = NULL;
hdev->discovery.scan_start = 0;
hdev->discovery.scan_duration = 0;
}
bool hci_discovery_active(struct hci_dev *hdev);