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183b9b59 IPG |
1 | /* |
2 | * UWB PAL support. | |
3 | * | |
4 | * Copyright (C) 2008 Cambridge Silicon Radio Ltd. | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License version | |
8 | * 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/uwb.h> | |
20 | ||
21 | #include "uwb-internal.h" | |
22 | ||
23 | /** | |
24 | * uwb_pal_init - initialize a UWB PAL | |
25 | * @pal: the PAL to initialize | |
26 | */ | |
27 | void uwb_pal_init(struct uwb_pal *pal) | |
28 | { | |
29 | INIT_LIST_HEAD(&pal->node); | |
30 | } | |
31 | EXPORT_SYMBOL_GPL(uwb_pal_init); | |
32 | ||
33 | /** | |
34 | * uwb_pal_register - register a UWB PAL | |
35 | * @rc: the radio controller the PAL will be using | |
36 | * @pal: the PAL | |
37 | * | |
38 | * The PAL must be initialized with uwb_pal_init(). | |
39 | */ | |
40 | int uwb_pal_register(struct uwb_rc *rc, struct uwb_pal *pal) | |
41 | { | |
42 | spin_lock(&rc->pal_lock); | |
43 | list_add(&pal->node, &rc->pals); | |
44 | spin_unlock(&rc->pal_lock); | |
45 | ||
46 | return 0; | |
47 | } | |
48 | EXPORT_SYMBOL_GPL(uwb_pal_register); | |
49 | ||
50 | /** | |
51 | * uwb_pal_register - unregister a UWB PAL | |
52 | * @rc: the radio controller the PAL was using | |
53 | * @pal: the PAL | |
54 | */ | |
55 | void uwb_pal_unregister(struct uwb_rc *rc, struct uwb_pal *pal) | |
56 | { | |
57 | spin_lock(&rc->pal_lock); | |
58 | list_del(&pal->node); | |
59 | spin_unlock(&rc->pal_lock); | |
60 | } | |
61 | EXPORT_SYMBOL_GPL(uwb_pal_unregister); | |
62 | ||
63 | /** | |
64 | * uwb_rc_pal_init - initialize the PAL related parts of a radio controller | |
65 | * @rc: the radio controller | |
66 | */ | |
67 | void uwb_rc_pal_init(struct uwb_rc *rc) | |
68 | { | |
69 | spin_lock_init(&rc->pal_lock); | |
70 | INIT_LIST_HEAD(&rc->pals); | |
71 | } |