cancel_delayed_work(&hdev->service_cache);
cancel_delayed_work_sync(&hdev->le_scan_disable);
+ cancel_delayed_work_sync(&hdev->le_scan_restart);
if (test_bit(HCI_MGMT, &hdev->dev_flags))
cancel_delayed_work_sync(&hdev->rpa_expired);
hci_conn_hash_flush(hdev);
hci_dev_unlock(hdev);
+ smp_unregister(hdev);
+
hci_notify(hdev, HCI_DEV_DOWN);
if (hdev->flush)
return err;
}
-int hci_dev_reset(__u16 dev)
+static int hci_dev_do_reset(struct hci_dev *hdev)
{
- struct hci_dev *hdev;
- int ret = 0;
+ int ret;
- hdev = hci_dev_get(dev);
- if (!hdev)
- return -ENODEV;
+ BT_DBG("%s %p", hdev->name, hdev);
hci_req_lock(hdev);
- if (!test_bit(HCI_UP, &hdev->flags)) {
- ret = -ENETDOWN;
- goto done;
- }
-
- if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
- ret = -EBUSY;
- goto done;
- }
-
- if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) {
- ret = -EOPNOTSUPP;
- goto done;
- }
-
/* Drop queues */
skb_queue_purge(&hdev->rx_q);
skb_queue_purge(&hdev->cmd_q);
ret = __hci_req_sync(hdev, hci_reset_req, 0, HCI_INIT_TIMEOUT);
-done:
hci_req_unlock(hdev);
- hci_dev_put(hdev);
return ret;
}
+int hci_dev_reset(__u16 dev)
+{
+ struct hci_dev *hdev;
+ int err;
+
+ hdev = hci_dev_get(dev);
+ if (!hdev)
+ return -ENODEV;
+
+ if (!test_bit(HCI_UP, &hdev->flags)) {
+ err = -ENETDOWN;
+ goto done;
+ }
+
+ if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+ err = -EBUSY;
+ goto done;
+ }
+
+ if (test_bit(HCI_UNCONFIGURED, &hdev->dev_flags)) {
+ err = -EOPNOTSUPP;
+ goto done;
+ }
+
+ err = hci_dev_do_reset(hdev);
+
+done:
+ hci_dev_put(hdev);
+ return err;
+}
+
int hci_dev_reset_stat(__u16 dev)
{
struct hci_dev *hdev;
BT_DBG("%s", hdev->name);
hci_dev_do_close(hdev);
+}
- smp_unregister(hdev);
+static void hci_error_reset(struct work_struct *work)
+{
+ struct hci_dev *hdev = container_of(work, struct hci_dev, error_reset);
+
+ BT_DBG("%s", hdev->name);
+
+ if (hdev->hw_error)
+ hdev->hw_error(hdev, hdev->hw_error_code);
+ else
+ BT_ERR("%s hardware error 0x%2.2x", hdev->name,
+ hdev->hw_error_code);
+
+ if (hci_dev_do_close(hdev))
+ return;
+
+ hci_dev_do_open(hdev);
}
static void hci_discov_off(struct work_struct *work)
if (hash192 && rand192) {
memcpy(data->hash192, hash192, sizeof(data->hash192));
memcpy(data->rand192, rand192, sizeof(data->rand192));
+ if (hash256 && rand256)
+ data->present = 0x03;
} else {
memset(data->hash192, 0, sizeof(data->hash192));
memset(data->rand192, 0, sizeof(data->rand192));
+ if (hash256 && rand256)
+ data->present = 0x02;
+ else
+ data->present = 0x00;
}
if (hash256 && rand256) {
} else {
memset(data->hash256, 0, sizeof(data->hash256));
memset(data->rand256, 0, sizeof(data->rand256));
+ if (hash192 && rand192)
+ data->present = 0x01;
}
BT_DBG("%s for %pMR", hdev->name, bdaddr);
return;
}
+ hdev->discovery.scan_start = 0;
+
switch (hdev->discovery.type) {
case DISCOV_TYPE_LE:
hci_dev_lock(hdev);
BT_DBG("%s", hdev->name);
+ cancel_delayed_work_sync(&hdev->le_scan_restart);
+
hci_req_init(&req, hdev);
hci_req_add_le_scan_disable(&req);
BT_ERR("Disable LE scanning request failed: err %d", err);
}
+static void le_scan_restart_work_complete(struct hci_dev *hdev, u8 status,
+ u16 opcode)
+{
+ unsigned long timeout, duration, scan_start, now;
+
+ BT_DBG("%s", hdev->name);
+
+ if (status) {
+ BT_ERR("Failed to restart LE scan: status %d", status);
+ return;
+ }
+
+ if (!test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks) ||
+ !hdev->discovery.scan_start)
+ return;
+
+ /* When the scan was started, hdev->le_scan_disable has been queued
+ * after duration from scan_start. During scan restart this job
+ * has been canceled, and we need to queue it again after proper
+ * timeout, to make sure that scan does not run indefinitely.
+ */
+ duration = hdev->discovery.scan_duration;
+ scan_start = hdev->discovery.scan_start;
+ now = jiffies;
+ if (now - scan_start <= duration) {
+ int elapsed;
+
+ if (now >= scan_start)
+ elapsed = now - scan_start;
+ else
+ elapsed = ULONG_MAX - scan_start + now;
+
+ timeout = duration - elapsed;
+ } else {
+ timeout = 0;
+ }
+ queue_delayed_work(hdev->workqueue,
+ &hdev->le_scan_disable, timeout);
+}
+
+static void le_scan_restart_work(struct work_struct *work)
+{
+ struct hci_dev *hdev = container_of(work, struct hci_dev,
+ le_scan_restart.work);
+ struct hci_request req;
+ struct hci_cp_le_set_scan_enable cp;
+ int err;
+
+ BT_DBG("%s", hdev->name);
+
+ /* If controller is not scanning we are done. */
+ if (!test_bit(HCI_LE_SCAN, &hdev->dev_flags))
+ return;
+
+ hci_req_init(&req, hdev);
+
+ hci_req_add_le_scan_disable(&req);
+
+ memset(&cp, 0, sizeof(cp));
+ cp.enable = LE_SCAN_ENABLE;
+ cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
+ hci_req_add(&req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(cp), &cp);
+
+ err = hci_req_run(&req, le_scan_restart_work_complete);
+ if (err)
+ BT_ERR("Restart LE scan request failed: err %d", err);
+}
+
/* Copy the Identity Address of the controller.
*
* If the controller has a public BD_ADDR, then by default use that one.
INIT_WORK(&hdev->cmd_work, hci_cmd_work);
INIT_WORK(&hdev->tx_work, hci_tx_work);
INIT_WORK(&hdev->power_on, hci_power_on);
+ INIT_WORK(&hdev->error_reset, hci_error_reset);
INIT_DELAYED_WORK(&hdev->power_off, hci_power_off);
INIT_DELAYED_WORK(&hdev->discov_off, hci_discov_off);
INIT_DELAYED_WORK(&hdev->le_scan_disable, le_scan_disable_work);
+ INIT_DELAYED_WORK(&hdev->le_scan_restart, le_scan_restart_work);
skb_queue_head_init(&hdev->rx_q);
skb_queue_head_init(&hdev->cmd_q);
rfkill_destroy(hdev->rfkill);
}
- smp_unregister(hdev);
-
device_del(&hdev->dev);
debugfs_remove_recursive(hdev->debugfs);
projects / firefly-linux-kernel-4.4.55.git / blobdiff