Bluetooth: Track current configured LE scan type parameter

The LE scan type paramter defines if active scanning or passive scanning
is in use. Track the currently set value so it can be used for decision
making from other pieces in the core.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 1e386ed..9ee081b 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -199,6 +199,8 @@
 	memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
 	hdev->scan_rsp_data_len = 0;
 
+	hdev->le_scan_type = LE_SCAN_PASSIVE;
+
 	hdev->ssp_debug_mode = 0;
 }
 
@@ -997,6 +999,25 @@
 	hci_dev_unlock(hdev);
 }
 
+static void hci_cc_le_set_scan_param(struct hci_dev *hdev, struct sk_buff *skb)
+{
+	struct hci_cp_le_set_scan_param *cp;
+	__u8 status = *((__u8 *) skb->data);
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, status);
+
+	cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_SCAN_PARAM);
+	if (!cp)
+		return;
+
+	hci_dev_lock(hdev);
+
+	if (!status)
+		hdev->le_scan_type = cp->type;
+
+	hci_dev_unlock(hdev);
+}
+
 static void hci_cc_le_set_scan_enable(struct hci_dev *hdev,
 				      struct sk_buff *skb)
 {
@@ -2488,6 +2509,10 @@
 		hci_cc_le_set_adv_enable(hdev, skb);
 		break;
 
+	case HCI_OP_LE_SET_SCAN_PARAM:
+		hci_cc_le_set_scan_param(hdev, skb);
+		break;
+
 	case HCI_OP_LE_SET_SCAN_ENABLE:
 		hci_cc_le_set_scan_enable(hdev, skb);
 		break;