ef2486f5 |
1 | /* |
2 | * Copyright 2007-2012 Siemens AG |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License version 2 |
6 | * as published by the Free Software Foundation. |
7 | * |
8 | * This program is distributed in the hope that it will be useful, |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
11 | * GNU General Public License for more details. |
12 | * |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
16 | * |
17 | * Written by: |
18 | * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> |
19 | * Sergey Lapin <slapin@ossfans.org> |
20 | * Maxim Gorbachyov <maxim.gorbachev@siemens.com> |
21 | * Alexander Smirnov <alex.bluesman.smirnov@gmail.com> |
22 | */ |
23 | |
24 | #include <linux/if_arp.h> |
25 | |
26 | #include <net/mac802154.h> |
27 | #include <net/wpan-phy.h> |
28 | |
29 | #include "mac802154.h" |
30 | |
31 | struct hw_addr_filt_notify_work { |
32 | struct work_struct work; |
33 | struct net_device *dev; |
34 | unsigned long changed; |
35 | }; |
36 | |
37 | struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev) |
38 | { |
39 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
40 | |
41 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
42 | |
43 | return priv->hw; |
44 | } |
45 | |
46 | static void hw_addr_notify(struct work_struct *work) |
47 | { |
48 | struct hw_addr_filt_notify_work *nw = container_of(work, |
49 | struct hw_addr_filt_notify_work, work); |
50 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); |
51 | int res; |
52 | |
53 | res = hw->ops->set_hw_addr_filt(&hw->hw, |
54 | &hw->hw.hw_filt, |
55 | nw->changed); |
56 | if (res) |
57 | pr_debug("failed changed mask %lx\n", nw->changed); |
58 | |
59 | kfree(nw); |
60 | |
61 | return; |
62 | } |
63 | |
64 | static void set_hw_addr_filt(struct net_device *dev, unsigned long changed) |
65 | { |
66 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
67 | struct hw_addr_filt_notify_work *work; |
68 | |
69 | work = kzalloc(sizeof(*work), GFP_ATOMIC); |
70 | if (!work) |
71 | return; |
72 | |
73 | INIT_WORK(&work->work, hw_addr_notify); |
74 | work->dev = dev; |
75 | work->changed = changed; |
76 | queue_work(priv->hw->dev_workqueue, &work->work); |
77 | |
78 | return; |
79 | } |
80 | |
81 | void mac802154_dev_set_ieee_addr(struct net_device *dev) |
82 | { |
83 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
84 | struct mac802154_priv *mac = priv->hw; |
85 | |
86 | if (mac->ops->set_hw_addr_filt && |
87 | memcmp(mac->hw.hw_filt.ieee_addr, |
88 | dev->dev_addr, IEEE802154_ADDR_LEN)) { |
89 | memcpy(mac->hw.hw_filt.ieee_addr, |
90 | dev->dev_addr, IEEE802154_ADDR_LEN); |
91 | set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED); |
92 | } |
93 | } |