Bluetooth: Add support for Start Limited Discovery command
This patch implements the mgmt Start Limited Discovery command. Most
of existing Start Discovery code is reused since the only difference
is the presence of a 'limited' flag as part of the discovery state.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 9997c31..41b5f38 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -1737,8 +1737,8 @@
static int bredr_inquiry(struct hci_request *req, unsigned long opt)
{
u8 length = opt;
- /* General inquiry access code (GIAC) */
- u8 lap[3] = { 0x33, 0x8b, 0x9e };
+ const u8 giac[3] = { 0x33, 0x8b, 0x9e };
+ const u8 liac[3] = { 0x00, 0x8b, 0x9e };
struct hci_cp_inquiry cp;
BT_DBG("%s", req->hdev->name);
@@ -1748,7 +1748,12 @@
hci_dev_unlock(req->hdev);
memset(&cp, 0, sizeof(cp));
- memcpy(&cp.lap, lap, sizeof(cp.lap));
+
+ if (req->hdev->discovery.limited)
+ memcpy(&cp.lap, liac, sizeof(cp.lap));
+ else
+ memcpy(&cp.lap, giac, sizeof(cp.lap));
+
cp.length = length;
hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp);