Bluetooth: Add LE scan type macros

This patch adds macros for active and passive LE scan type values.
The LE_SCAN_PASSIVE was also defined since it will be used in future
by LE connection routine and GAP Observer Role support.
Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

include/net/bluetooth/hci.h

@@ -984,6 +984,9 @@ struct hci_cp_le_set_adv_data {
 
 #define HCI_OP_LE_SET_ADV_ENABLE	0x200a
 
+#define LE_SCAN_PASSIVE			0x00
+#define LE_SCAN_ACTIVE			0x01
+
 #define HCI_OP_LE_SET_SCAN_PARAM	0x200b
 struct hci_cp_le_set_scan_param {
 	__u8    type;

net/bluetooth/mgmt.c

@@ -106,7 +106,6 @@ static const u16 mgmt_events[] = {
  * These LE scan and inquiry parameters were chosen according to LE General
  * Discovery Procedure specification.
  */
-#define LE_SCAN_TYPE			0x01
 #define LE_SCAN_WIN			0x12
 #define LE_SCAN_INT			0x12
 #define LE_SCAN_TIMEOUT_LE_ONLY		msecs_to_jiffies(10240)
@@ -2703,7 +2702,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 			goto failed;
 		}
 
-		err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT,
+		err = hci_le_scan(hdev, LE_SCAN_ACTIVE, LE_SCAN_INT,
 				  LE_SCAN_WIN, LE_SCAN_TIMEOUT_LE_ONLY);
 		break;
 
@@ -2715,8 +2714,8 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 			goto failed;
 		}
 
-		err = hci_le_scan(hdev, LE_SCAN_TYPE, LE_SCAN_INT, LE_SCAN_WIN,
-				  LE_SCAN_TIMEOUT_BREDR_LE);
+		err = hci_le_scan(hdev, LE_SCAN_ACTIVE, LE_SCAN_INT,
+				  LE_SCAN_WIN, LE_SCAN_TIMEOUT_BREDR_LE);
 		break;
 
 	default: