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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 | |
48e44d50 |
81 | void mac802154_dev_set_short_addr(struct net_device *dev, u16 val) |
82 | { |
83 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
84 | |
85 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
86 | |
87 | spin_lock_bh(&priv->mib_lock); |
88 | priv->short_addr = val; |
89 | spin_unlock_bh(&priv->mib_lock); |
90 | |
91 | if ((priv->hw->ops->set_hw_addr_filt) && |
92 | (priv->hw->hw.hw_filt.short_addr != priv->short_addr)) { |
93 | priv->hw->hw.hw_filt.short_addr = priv->short_addr; |
94 | set_hw_addr_filt(dev, IEEE802515_AFILT_SADDR_CHANGED); |
95 | } |
96 | } |
97 | |
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98 | void mac802154_dev_set_ieee_addr(struct net_device *dev) |
99 | { |
100 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
101 | struct mac802154_priv *mac = priv->hw; |
102 | |
103 | if (mac->ops->set_hw_addr_filt && |
104 | memcmp(mac->hw.hw_filt.ieee_addr, |
105 | dev->dev_addr, IEEE802154_ADDR_LEN)) { |
106 | memcpy(mac->hw.hw_filt.ieee_addr, |
107 | dev->dev_addr, IEEE802154_ADDR_LEN); |
108 | set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED); |
109 | } |
110 | } |
dcbe4f93 |
111 | |
112 | u16 mac802154_dev_get_pan_id(const struct net_device *dev) |
113 | { |
114 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
115 | u16 ret; |
116 | |
117 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
118 | |
119 | spin_lock_bh(&priv->mib_lock); |
120 | ret = priv->pan_id; |
121 | spin_unlock_bh(&priv->mib_lock); |
122 | |
123 | return ret; |
124 | } |
125 | |
126 | void mac802154_dev_set_pan_id(struct net_device *dev, u16 val) |
127 | { |
128 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
129 | |
130 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
131 | |
132 | spin_lock_bh(&priv->mib_lock); |
133 | priv->pan_id = val; |
134 | spin_unlock_bh(&priv->mib_lock); |
135 | |
136 | if ((priv->hw->ops->set_hw_addr_filt) && |
137 | (priv->hw->hw.hw_filt.pan_id != priv->pan_id)) { |
138 | priv->hw->hw.hw_filt.pan_id = priv->pan_id; |
139 | set_hw_addr_filt(dev, IEEE802515_AFILT_PANID_CHANGED); |
140 | } |
141 | } |