diff options
Diffstat (limited to 'net/bluetooth/hci_request.c')
| -rw-r--r-- | net/bluetooth/hci_request.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 11624645cfcf..bf83179ab9d1 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -1021,6 +1021,7 @@ static void suspend_req_complete(struct hci_dev *hdev, u8 status, u16 opcode) /* Call with hci_dev_lock */ void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next) { + int old_state; struct hci_conn *conn; struct hci_request req; u8 page_scan; @@ -1038,6 +1039,28 @@ void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next) /* Mark device as suspended */ hdev->suspended = true; + /* Pause discovery if not already stopped */ + old_state = hdev->discovery.state; + if (old_state != DISCOVERY_STOPPED) { + set_bit(SUSPEND_PAUSE_DISCOVERY, hdev->suspend_tasks); + hci_discovery_set_state(hdev, DISCOVERY_STOPPING); + queue_work(hdev->req_workqueue, &hdev->discov_update); + } + + hdev->discovery_paused = true; + hdev->discovery_old_state = old_state; + + /* Stop advertising */ + old_state = hci_dev_test_flag(hdev, HCI_ADVERTISING); + if (old_state) { + set_bit(SUSPEND_PAUSE_ADVERTISING, hdev->suspend_tasks); + cancel_delayed_work(&hdev->discov_off); + queue_delayed_work(hdev->req_workqueue, + &hdev->discov_off, 0); + } + + hdev->advertising_paused = true; + hdev->advertising_old_state = old_state; /* Disable page scan */ page_scan = SCAN_DISABLED; hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &page_scan); @@ -1084,6 +1107,27 @@ void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next) hci_req_clear_event_filter(&req); /* Reset passive/background scanning to normal */ hci_req_config_le_suspend_scan(&req); + + /* Unpause advertising */ + hdev->advertising_paused = false; + if (hdev->advertising_old_state) { + set_bit(SUSPEND_UNPAUSE_ADVERTISING, + hdev->suspend_tasks); + hci_dev_set_flag(hdev, HCI_ADVERTISING); + queue_work(hdev->req_workqueue, + &hdev->discoverable_update); + hdev->advertising_old_state = 0; + } + + /* Unpause discovery */ + hdev->discovery_paused = false; + if (hdev->discovery_old_state != DISCOVERY_STOPPED && + hdev->discovery_old_state != DISCOVERY_STOPPING) { + set_bit(SUSPEND_UNPAUSE_DISCOVERY, hdev->suspend_tasks); + hci_discovery_set_state(hdev, DISCOVERY_STARTING); + queue_work(hdev->req_workqueue, &hdev->discov_update); + } + hci_req_run(&req, suspend_req_complete); } |