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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> | |
b70ab2e8 | 27 | #include <net/ieee802154_netdev.h> |
ef2486f5 | 28 | #include <net/wpan-phy.h> |
29 | ||
30 | #include "mac802154.h" | |
31 | ||
66b69d4d | 32 | struct phy_chan_notify_work { |
33 | struct work_struct work; | |
34 | struct net_device *dev; | |
35 | }; | |
36 | ||
ef2486f5 | 37 | struct hw_addr_filt_notify_work { |
38 | struct work_struct work; | |
39 | struct net_device *dev; | |
40 | unsigned long changed; | |
41 | }; | |
42 | ||
42884042 | 43 | static struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev) |
ef2486f5 | 44 | { |
45 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
46 | ||
47 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
48 | ||
49 | return priv->hw; | |
50 | } | |
51 | ||
52 | static void hw_addr_notify(struct work_struct *work) | |
53 | { | |
54 | struct hw_addr_filt_notify_work *nw = container_of(work, | |
55 | struct hw_addr_filt_notify_work, work); | |
56 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); | |
57 | int res; | |
58 | ||
59 | res = hw->ops->set_hw_addr_filt(&hw->hw, | |
60 | &hw->hw.hw_filt, | |
61 | nw->changed); | |
62 | if (res) | |
63 | pr_debug("failed changed mask %lx\n", nw->changed); | |
64 | ||
65 | kfree(nw); | |
ef2486f5 | 66 | } |
67 | ||
68 | static void set_hw_addr_filt(struct net_device *dev, unsigned long changed) | |
69 | { | |
70 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
71 | struct hw_addr_filt_notify_work *work; | |
72 | ||
73 | work = kzalloc(sizeof(*work), GFP_ATOMIC); | |
74 | if (!work) | |
75 | return; | |
76 | ||
77 | INIT_WORK(&work->work, hw_addr_notify); | |
78 | work->dev = dev; | |
79 | work->changed = changed; | |
80 | queue_work(priv->hw->dev_workqueue, &work->work); | |
ef2486f5 | 81 | } |
82 | ||
b70ab2e8 | 83 | void mac802154_dev_set_short_addr(struct net_device *dev, __le16 val) |
48e44d50 | 84 | { |
85 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
86 | ||
87 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
88 | ||
89 | spin_lock_bh(&priv->mib_lock); | |
90 | priv->short_addr = val; | |
91 | spin_unlock_bh(&priv->mib_lock); | |
92 | ||
93 | if ((priv->hw->ops->set_hw_addr_filt) && | |
94 | (priv->hw->hw.hw_filt.short_addr != priv->short_addr)) { | |
95 | priv->hw->hw.hw_filt.short_addr = priv->short_addr; | |
96 | set_hw_addr_filt(dev, IEEE802515_AFILT_SADDR_CHANGED); | |
97 | } | |
98 | } | |
99 | ||
b70ab2e8 | 100 | __le16 mac802154_dev_get_short_addr(const struct net_device *dev) |
e885a47a | 101 | { |
102 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
b70ab2e8 | 103 | __le16 ret; |
e885a47a | 104 | |
105 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
106 | ||
107 | spin_lock_bh(&priv->mib_lock); | |
108 | ret = priv->short_addr; | |
109 | spin_unlock_bh(&priv->mib_lock); | |
110 | ||
111 | return ret; | |
112 | } | |
113 | ||
ef2486f5 | 114 | void mac802154_dev_set_ieee_addr(struct net_device *dev) |
115 | { | |
116 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
117 | struct mac802154_priv *mac = priv->hw; | |
118 | ||
e6278d92 | 119 | priv->extended_addr = ieee802154_devaddr_from_raw(dev->dev_addr); |
b70ab2e8 | 120 | |
e6278d92 PB |
121 | if (mac->ops->set_hw_addr_filt && |
122 | mac->hw.hw_filt.ieee_addr != priv->extended_addr) { | |
123 | mac->hw.hw_filt.ieee_addr = priv->extended_addr; | |
ef2486f5 | 124 | set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED); |
125 | } | |
126 | } | |
dcbe4f93 | 127 | |
b70ab2e8 | 128 | __le16 mac802154_dev_get_pan_id(const struct net_device *dev) |
dcbe4f93 | 129 | { |
130 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
b70ab2e8 | 131 | __le16 ret; |
dcbe4f93 | 132 | |
133 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
134 | ||
135 | spin_lock_bh(&priv->mib_lock); | |
136 | ret = priv->pan_id; | |
137 | spin_unlock_bh(&priv->mib_lock); | |
138 | ||
139 | return ret; | |
140 | } | |
141 | ||
b70ab2e8 | 142 | void mac802154_dev_set_pan_id(struct net_device *dev, __le16 val) |
dcbe4f93 | 143 | { |
144 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
145 | ||
146 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
147 | ||
148 | spin_lock_bh(&priv->mib_lock); | |
149 | priv->pan_id = val; | |
150 | spin_unlock_bh(&priv->mib_lock); | |
151 | ||
152 | if ((priv->hw->ops->set_hw_addr_filt) && | |
153 | (priv->hw->hw.hw_filt.pan_id != priv->pan_id)) { | |
154 | priv->hw->hw.hw_filt.pan_id = priv->pan_id; | |
155 | set_hw_addr_filt(dev, IEEE802515_AFILT_PANID_CHANGED); | |
156 | } | |
157 | } | |
66b69d4d | 158 | |
0483546a TC |
159 | u8 mac802154_dev_get_dsn(const struct net_device *dev) |
160 | { | |
161 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
162 | ||
163 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
164 | ||
165 | return priv->dsn++; | |
166 | } | |
167 | ||
66b69d4d | 168 | static void phy_chan_notify(struct work_struct *work) |
169 | { | |
170 | struct phy_chan_notify_work *nw = container_of(work, | |
171 | struct phy_chan_notify_work, work); | |
172 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); | |
173 | struct mac802154_sub_if_data *priv = netdev_priv(nw->dev); | |
174 | int res; | |
175 | ||
9f7f78b4 | 176 | mutex_lock(&priv->hw->phy->pib_lock); |
66b69d4d | 177 | res = hw->ops->set_channel(&hw->hw, priv->page, priv->chan); |
178 | if (res) | |
179 | pr_debug("set_channel failed\n"); | |
9f7f78b4 AO |
180 | else { |
181 | priv->hw->phy->current_channel = priv->chan; | |
182 | priv->hw->phy->current_page = priv->page; | |
183 | } | |
184 | mutex_unlock(&priv->hw->phy->pib_lock); | |
66b69d4d | 185 | |
186 | kfree(nw); | |
187 | } | |
188 | ||
189 | void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan) | |
190 | { | |
191 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
192 | struct phy_chan_notify_work *work; | |
193 | ||
194 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
195 | ||
196 | spin_lock_bh(&priv->mib_lock); | |
197 | priv->page = page; | |
198 | priv->chan = chan; | |
199 | spin_unlock_bh(&priv->mib_lock); | |
200 | ||
9f7f78b4 | 201 | mutex_lock(&priv->hw->phy->pib_lock); |
66b69d4d | 202 | if (priv->hw->phy->current_channel != priv->chan || |
203 | priv->hw->phy->current_page != priv->page) { | |
9f7f78b4 AO |
204 | mutex_unlock(&priv->hw->phy->pib_lock); |
205 | ||
66b69d4d | 206 | work = kzalloc(sizeof(*work), GFP_ATOMIC); |
207 | if (!work) | |
208 | return; | |
209 | ||
210 | INIT_WORK(&work->work, phy_chan_notify); | |
211 | work->dev = dev; | |
212 | queue_work(priv->hw->dev_workqueue, &work->work); | |
9f7f78b4 AO |
213 | } else |
214 | mutex_unlock(&priv->hw->phy->pib_lock); | |
66b69d4d | 215 | } |