summaryrefslogtreecommitdiffstats
path: root/net/mac802154/mib.c
blob: d74503b4302f25e401c91a416bd6c5d22298c6af (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
/*
 * Copyright 2007-2012 Siemens AG
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Written by:
 * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
 * Sergey Lapin <slapin@ossfans.org>
 * Maxim Gorbachyov <maxim.gorbachev@siemens.com>
 * Alexander Smirnov <alex.bluesman.smirnov@gmail.com>
 */

#include <linux/if_arp.h>

#include <net/mac802154.h>
#include <net/wpan-phy.h>

#include "mac802154.h"

struct hw_addr_filt_notify_work {
	struct work_struct work;
	struct net_device *dev;
	unsigned long changed;
};

struct mac802154_priv *mac802154_slave_get_priv(struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	return priv->hw;
}

static void hw_addr_notify(struct work_struct *work)
{
	struct hw_addr_filt_notify_work *nw = container_of(work,
			struct hw_addr_filt_notify_work, work);
	struct mac802154_priv *hw = mac802154_slave_get_priv(nw->dev);
	int res;

	res = hw->ops->set_hw_addr_filt(&hw->hw,
					&hw->hw.hw_filt,
					nw->changed);
	if (res)
		pr_debug("failed changed mask %lx\n", nw->changed);

	kfree(nw);

	return;
}

static void set_hw_addr_filt(struct net_device *dev, unsigned long changed)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	struct hw_addr_filt_notify_work *work;

	work = kzalloc(sizeof(*work), GFP_ATOMIC);
	if (!work)
		return;

	INIT_WORK(&work->work, hw_addr_notify);
	work->dev = dev;
	work->changed = changed;
	queue_work(priv->hw->dev_workqueue, &work->work);

	return;
}

void mac802154_dev_set_short_addr(struct net_device *dev, u16 val)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	spin_lock_bh(&priv->mib_lock);
	priv->short_addr = val;
	spin_unlock_bh(&priv->mib_lock);

	if ((priv->hw->ops->set_hw_addr_filt) &&
	    (priv->hw->hw.hw_filt.short_addr != priv->short_addr)) {
		priv->hw->hw.hw_filt.short_addr = priv->short_addr;
		set_hw_addr_filt(dev, IEEE802515_AFILT_SADDR_CHANGED);
	}
}

void mac802154_dev_set_ieee_addr(struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	struct mac802154_priv *mac = priv->hw;

	if (mac->ops->set_hw_addr_filt &&
	    memcmp(mac->hw.hw_filt.ieee_addr,
		   dev->dev_addr, IEEE802154_ADDR_LEN)) {
		memcpy(mac->hw.hw_filt.ieee_addr,
		       dev->dev_addr, IEEE802154_ADDR_LEN);
		set_hw_addr_filt(dev, IEEE802515_AFILT_IEEEADDR_CHANGED);
	}
}

u16 mac802154_dev_get_pan_id(const struct net_device *dev)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);
	u16 ret;

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	spin_lock_bh(&priv->mib_lock);
	ret = priv->pan_id;
	spin_unlock_bh(&priv->mib_lock);

	return ret;
}

void mac802154_dev_set_pan_id(struct net_device *dev, u16 val)
{
	struct mac802154_sub_if_data *priv = netdev_priv(dev);

	BUG_ON(dev->type != ARPHRD_IEEE802154);

	spin_lock_bh(&priv->mib_lock);
	priv->pan_id = val;
	spin_unlock_bh(&priv->mib_lock);

	if ((priv->hw->ops->set_hw_addr_filt) &&
	    (priv->hw->hw.hw_filt.pan_id != priv->pan_id)) {
		priv->hw->hw.hw_filt.pan_id = priv->pan_id;
		set_hw_addr_filt(dev, IEEE802515_AFILT_PANID_CHANGED);
	}
}