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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 | |
66b69d4d |
31 | struct phy_chan_notify_work { |
32 | struct work_struct work; |
33 | struct net_device *dev; |
34 | }; |
35 | |
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36 | struct hw_addr_filt_notify_work { |
37 | struct work_struct work; |
38 | struct net_device *dev; |
39 | unsigned long changed; |
40 | }; |
41 | |
42884042 |
42 | static struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev) |
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43 | { |
44 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
45 | |
46 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
47 | |
48 | return priv->hw; |
49 | } |
50 | |
51 | static void hw_addr_notify(struct work_struct *work) |
52 | { |
53 | struct hw_addr_filt_notify_work *nw = container_of(work, |
54 | struct hw_addr_filt_notify_work, work); |
55 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); |
56 | int res; |
57 | |
58 | res = hw->ops->set_hw_addr_filt(&hw->hw, |
59 | &hw->hw.hw_filt, |
60 | nw->changed); |
61 | if (res) |
62 | pr_debug("failed changed mask %lx\n", nw->changed); |
63 | |
64 | kfree(nw); |
65 | |
66 | return; |
67 | } |
68 | |
69 | static void set_hw_addr_filt(struct net_device *dev, unsigned long changed) |
70 | { |
71 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
72 | struct hw_addr_filt_notify_work *work; |
73 | |
74 | work = kzalloc(sizeof(*work), GFP_ATOMIC); |
75 | if (!work) |
76 | return; |
77 | |
78 | INIT_WORK(&work->work, hw_addr_notify); |
79 | work->dev = dev; |
80 | work->changed = changed; |
81 | queue_work(priv->hw->dev_workqueue, &work->work); |
82 | |
83 | return; |
84 | } |
85 | |
48e44d50 |
86 | void mac802154_dev_set_short_addr(struct net_device *dev, u16 val) |
87 | { |
88 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
89 | |
90 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
91 | |
92 | spin_lock_bh(&priv->mib_lock); |
93 | priv->short_addr = val; |
94 | spin_unlock_bh(&priv->mib_lock); |
95 | |
96 | if ((priv->hw->ops->set_hw_addr_filt) && |
97 | (priv->hw->hw.hw_filt.short_addr != priv->short_addr)) { |
98 | priv->hw->hw.hw_filt.short_addr = priv->short_addr; |
99 | set_hw_addr_filt(dev, IEEE802515_AFILT_SADDR_CHANGED); |
100 | } |
101 | } |
102 | |
e885a47a |
103 | u16 mac802154_dev_get_short_addr(const struct net_device *dev) |
104 | { |
105 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
106 | u16 ret; |
107 | |
108 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
109 | |
110 | spin_lock_bh(&priv->mib_lock); |
111 | ret = priv->short_addr; |
112 | spin_unlock_bh(&priv->mib_lock); |
113 | |
114 | return ret; |
115 | } |
116 | |
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117 | void mac802154_dev_set_ieee_addr(struct net_device *dev) |
118 | { |
119 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
120 | struct mac802154_priv *mac = priv->hw; |
121 | |
122 | if (mac->ops->set_hw_addr_filt && |
123 | memcmp(mac->hw.hw_filt.ieee_addr, |
124 | dev->dev_addr, IEEE802154_ADDR_LEN)) { |
125 | memcpy(mac->hw.hw_filt.ieee_addr, |
126 | dev->dev_addr, IEEE802154_ADDR_LEN); |
127 | set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED); |
128 | } |
129 | } |
dcbe4f93 |
130 | |
131 | u16 mac802154_dev_get_pan_id(const struct net_device *dev) |
132 | { |
133 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
134 | u16 ret; |
135 | |
136 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
137 | |
138 | spin_lock_bh(&priv->mib_lock); |
139 | ret = priv->pan_id; |
140 | spin_unlock_bh(&priv->mib_lock); |
141 | |
142 | return ret; |
143 | } |
144 | |
145 | void mac802154_dev_set_pan_id(struct net_device *dev, u16 val) |
146 | { |
147 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
148 | |
149 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
150 | |
151 | spin_lock_bh(&priv->mib_lock); |
152 | priv->pan_id = val; |
153 | spin_unlock_bh(&priv->mib_lock); |
154 | |
155 | if ((priv->hw->ops->set_hw_addr_filt) && |
156 | (priv->hw->hw.hw_filt.pan_id != priv->pan_id)) { |
157 | priv->hw->hw.hw_filt.pan_id = priv->pan_id; |
158 | set_hw_addr_filt(dev, IEEE802515_AFILT_PANID_CHANGED); |
159 | } |
160 | } |
66b69d4d |
161 | |
162 | static void phy_chan_notify(struct work_struct *work) |
163 | { |
164 | struct phy_chan_notify_work *nw = container_of(work, |
165 | struct phy_chan_notify_work, work); |
166 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); |
167 | struct mac802154_sub_if_data *priv = netdev_priv(nw->dev); |
168 | int res; |
169 | |
170 | res = hw->ops->set_channel(&hw->hw, priv->page, priv->chan); |
171 | if (res) |
172 | pr_debug("set_channel failed\n"); |
173 | |
174 | kfree(nw); |
175 | } |
176 | |
177 | void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan) |
178 | { |
179 | struct mac802154_sub_if_data *priv = netdev_priv(dev); |
180 | struct phy_chan_notify_work *work; |
181 | |
182 | BUG_ON(dev->type != ARPHRD_IEEE802154); |
183 | |
184 | spin_lock_bh(&priv->mib_lock); |
185 | priv->page = page; |
186 | priv->chan = chan; |
187 | spin_unlock_bh(&priv->mib_lock); |
188 | |
189 | if (priv->hw->phy->current_channel != priv->chan || |
190 | priv->hw->phy->current_page != priv->page) { |
191 | work = kzalloc(sizeof(*work), GFP_ATOMIC); |
192 | if (!work) |
193 | return; |
194 | |
195 | INIT_WORK(&work->work, phy_chan_notify); |
196 | work->dev = dev; |
197 | queue_work(priv->hw->dev_workqueue, &work->work); |
198 | } |
199 | } |