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Bluetooth: Add support for Start Limited Discovery command

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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>
This commit is contained in:
Johan Hedberg 2016-01-05 13:19:32 +02:00 • committed by Marcel Holtmann
parent 0d3b7f64c8
commit 78b781ca0d
4 changed files with 55 additions and 12 deletions
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11
net/bluetooth/hci_request.c
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@ -1737,8 +1737,8 @@ static int le_scan_disable(struct hci_request *req, unsigned long opt)
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 @@ static int bredr_inquiry(struct hci_request *req, unsigned long opt)
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);