Bluetooth: Add new mgmt setting for LE advertising

This patch adds a new mgmt setting for LE advertising and hooks up the
necessary places in the mgmt code to operate on the HCI_LE_PERIPHERAL
flag (which corresponds to this setting). This patch does not yet add
any new command for enabling the setting - that is left for a subsequent
patch.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 4c3984e..9a2faa3 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -384,8 +384,10 @@
 	if (enable_hs)
 		settings |= MGMT_SETTING_HS;
 
-	if (lmp_le_capable(hdev))
+	if (lmp_le_capable(hdev)) {
 		settings |= MGMT_SETTING_LE;
+		settings |= MGMT_SETTING_ADVERTISING;
+	}
 
 	return settings;
 }
@@ -424,6 +426,9 @@
 	if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags))
 		settings |= MGMT_SETTING_HS;
 
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
+		settings |= MGMT_SETTING_ADVERTISING;
+
 	return settings;
 }
 
@@ -1411,6 +1416,11 @@
 			changed = true;
 		}
 
+		if (!val && test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			changed = true;
+		}
+
 		err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
 		if (err < 0)
 			goto unlock;
@@ -1442,6 +1452,9 @@
 
 	hci_req_init(&req, hdev);
 
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags) && !val)
+		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(val), &val);
+
 	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
 		    &hci_cp);
 
@@ -3517,6 +3530,12 @@
 				    sizeof(cp), &cp);
 	}
 
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+		u8 adv = 0x01;
+
+		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+	}
+
 	link_sec = test_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
 	if (link_sec != test_bit(HCI_AUTH, &hdev->flags))
 		hci_req_add(&req, HCI_OP_WRITE_AUTH_ENABLE,