Bluetooth: Refactor fast connectable HCI commands

This patch refactors the fast connectable HCI commands into their own
HCI function. This is necessary so that the same function can be reused
fo the fast connectable change required by disabling the connectable
setting.
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>

net/bluetooth/mgmt.c

@@ -1000,6 +1000,29 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	return err;
 }
 
+static void write_fast_connectable(struct hci_request *req, bool enable)
+{
+	struct hci_cp_write_page_scan_activity acp;
+	u8 type;
+
+	if (enable) {
+		type = PAGE_SCAN_TYPE_INTERLACED;
+
+		/* 160 msec page scan interval */
+		acp.interval = __constant_cpu_to_le16(0x0100);
+	} else {
+		type = PAGE_SCAN_TYPE_STANDARD;	/* default */
+
+		/* default 1.28 sec page scan */
+		acp.interval = __constant_cpu_to_le16(0x0800);
+	}
+
+	acp.window = __constant_cpu_to_le16(0x0012);
+
+	hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY, sizeof(acp), &acp);
+	hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
+}
+
 static void set_connectable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
@@ -2937,10 +2960,8 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
 				void *data, u16 len)
 {
 	struct mgmt_mode *cp = data;
-	struct hci_cp_write_page_scan_activity acp;
 	struct pending_cmd *cmd;
 	struct hci_request req;
-	u8 type;
 	int err;
 
 	BT_DBG("%s", hdev->name);
@@ -2975,21 +2996,6 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
 		goto unlock;
 	}
 
-	if (cp->val) {
-		type = PAGE_SCAN_TYPE_INTERLACED;
-
-		/* 160 msec page scan interval */
-		acp.interval = __constant_cpu_to_le16(0x0100);
-	} else {
-		type = PAGE_SCAN_TYPE_STANDARD;	/* default */
-
-		/* default 1.28 sec page scan */
-		acp.interval = __constant_cpu_to_le16(0x0800);
-	}
-
-	/* default 11.25 msec page scan window */
-	acp.window = __constant_cpu_to_le16(0x0012);
-
 	cmd = mgmt_pending_add(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev,
 			       data, len);
 	if (!cmd) {
@@ -2999,8 +3005,7 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
 
 	hci_req_init(&req, hdev);
 
-	hci_req_add(&req, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY, sizeof(acp), &acp);
-	hci_req_add(&req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
+	write_fast_connectable(&req, cp->val);
 
 	err = hci_req_run(&req, fast_connectable_complete);
 	if (err < 0) {