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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> | |
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 | ||
ef2486f5 | 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) |
ef2486f5 | 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 | ||
ef2486f5 | 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 | |
0483546a TC |
162 | u8 mac802154_dev_get_dsn(const struct net_device *dev) |
163 | { | |
164 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
165 | ||
166 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
167 | ||
168 | return priv->dsn++; | |
169 | } | |
170 | ||
66b69d4d | 171 | static void phy_chan_notify(struct work_struct *work) |
172 | { | |
173 | struct phy_chan_notify_work *nw = container_of(work, | |
174 | struct phy_chan_notify_work, work); | |
175 | struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev); | |
176 | struct mac802154_sub_if_data *priv = netdev_priv(nw->dev); | |
177 | int res; | |
178 | ||
9f7f78b4 | 179 | mutex_lock(&priv->hw->phy->pib_lock); |
66b69d4d | 180 | res = hw->ops->set_channel(&hw->hw, priv->page, priv->chan); |
181 | if (res) | |
182 | pr_debug("set_channel failed\n"); | |
9f7f78b4 AO |
183 | else { |
184 | priv->hw->phy->current_channel = priv->chan; | |
185 | priv->hw->phy->current_page = priv->page; | |
186 | } | |
187 | mutex_unlock(&priv->hw->phy->pib_lock); | |
66b69d4d | 188 | |
189 | kfree(nw); | |
190 | } | |
191 | ||
192 | void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan) | |
193 | { | |
194 | struct mac802154_sub_if_data *priv = netdev_priv(dev); | |
195 | struct phy_chan_notify_work *work; | |
196 | ||
197 | BUG_ON(dev->type != ARPHRD_IEEE802154); | |
198 | ||
199 | spin_lock_bh(&priv->mib_lock); | |
200 | priv->page = page; | |
201 | priv->chan = chan; | |
202 | spin_unlock_bh(&priv->mib_lock); | |
203 | ||
9f7f78b4 | 204 | mutex_lock(&priv->hw->phy->pib_lock); |
66b69d4d | 205 | if (priv->hw->phy->current_channel != priv->chan || |
206 | priv->hw->phy->current_page != priv->page) { | |
9f7f78b4 AO |
207 | mutex_unlock(&priv->hw->phy->pib_lock); |
208 | ||
66b69d4d | 209 | work = kzalloc(sizeof(*work), GFP_ATOMIC); |
210 | if (!work) | |
211 | return; | |
212 | ||
213 | INIT_WORK(&work->work, phy_chan_notify); | |
214 | work->dev = dev; | |
215 | queue_work(priv->hw->dev_workqueue, &work->work); | |
9f7f78b4 AO |
216 | } else |
217 | mutex_unlock(&priv->hw->phy->pib_lock); | |
66b69d4d | 218 | } |