diff options
| -rw-r--r-- | net/bluetooth/mgmt.c | 70 |
1 files changed, 66 insertions, 4 deletions
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 610ac32e797b..25b8b278debd 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1026,6 +1026,49 @@ static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev) sizeof(settings)); } +static void clean_up_hci_complete(struct hci_dev *hdev, u8 status) +{ + BT_DBG("%s status 0x%02x", hdev->name, status); + + if (hci_conn_count(hdev) == 0) + queue_work(hdev->req_workqueue, &hdev->power_off.work); +} + +static int clean_up_hci_state(struct hci_dev *hdev) +{ + struct hci_request req; + struct hci_conn *conn; + + hci_req_init(&req, hdev); + + if (test_bit(HCI_ISCAN, &hdev->flags) || + test_bit(HCI_PSCAN, &hdev->flags)) { + u8 scan = 0x00; + hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); + } + + if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) + disable_advertising(&req); + + if (test_bit(HCI_LE_SCAN, &hdev->dev_flags)) { + struct hci_cp_le_set_scan_enable cp; + + memset(&cp, 0, sizeof(cp)); + cp.enable = LE_SCAN_DISABLE; + hci_req_add(&req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp); + } + + list_for_each_entry(conn, &hdev->conn_hash.list, list) { + struct hci_cp_disconnect dc; + + dc.handle = cpu_to_le16(conn->handle); + dc.reason = 0x15; /* Terminated due to Power Off */ + hci_req_add(&req, HCI_OP_DISCONNECT, sizeof(dc), &dc); + } + + return hci_req_run(&req, clean_up_hci_complete); +} + static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) { @@ -1069,12 +1112,19 @@ static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data, goto failed; } - if (cp->val) + if (cp->val) { queue_work(hdev->req_workqueue, &hdev->power_on); - else - queue_work(hdev->req_workqueue, &hdev->power_off.work); + err = 0; + } else { + /* Disconnect connections, stop scans, etc */ + err = clean_up_hci_state(hdev); - err = 0; + /* ENODATA means there were no HCI commands queued */ + if (err == -ENODATA) { + queue_work(hdev->req_workqueue, &hdev->power_off.work); + err = 0; + } + } failed: hci_dev_unlock(hdev); @@ -5028,8 +5078,20 @@ void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, bool mgmt_connected) { struct mgmt_ev_device_disconnected ev; + struct pending_cmd *power_off; struct sock *sk = NULL; + power_off = mgmt_pending_find(MGMT_OP_SET_POWERED, hdev); + if (power_off) { + struct mgmt_mode *cp = power_off->param; + + /* The connection is still in hci_conn_hash so test for 1 + * instead of 0 to know if this is the last one. + */ + if (!cp->val && hci_conn_count(hdev) == 1) + queue_work(hdev->req_workqueue, &hdev->power_off.work); + } + if (!mgmt_connected) return; |