1/*
2 * Ultra Wide Band
3 * IE Received notification handling.
4 *
5 * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version
9 * 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#include <linux/errno.h>
21#include <linux/module.h>
22#include <linux/device.h>
23#include <linux/bitmap.h>
24#include "uwb-internal.h"
25
26/*
27 * Process an incoming IE Received notification.
28 */
29int uwbd_evt_handle_rc_ie_rcv(struct uwb_event *evt)
30{
31 int result = -EINVAL;
32 struct device *dev = &evt->rc->uwb_dev.dev;
33 struct uwb_rc_evt_ie_rcv *iercv;
34
35 /* Is there enough data to decode it? */
36 if (evt->notif.size < sizeof(*iercv)) {
37 dev_err(dev, "IE Received notification: Not enough data to "
38 "decode (%zu vs %zu bytes needed)\n",
39 evt->notif.size, sizeof(*iercv));
40 goto error;
41 }
42 iercv = container_of(evt->notif.rceb, struct uwb_rc_evt_ie_rcv, rceb);
43
44 dev_dbg(dev, "IE received, element ID=%d\n", iercv->IEData[0]);
45
46 if (iercv->IEData[0] == UWB_RELINQUISH_REQUEST_IE) {
47 dev_warn(dev, "unhandled Relinquish Request IE\n");
48 }
49
50 return 0;
51error:
52 return result;
53}
54