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Diffstat (limited to 'net/ieee80211/ieee80211_geo.c')
-rw-r--r--net/ieee80211/ieee80211_geo.c195
1 files changed, 0 insertions, 195 deletions
diff --git a/net/ieee80211/ieee80211_geo.c b/net/ieee80211/ieee80211_geo.c
deleted file mode 100644
index 960ad13f5e9f..000000000000
--- a/net/ieee80211/ieee80211_geo.c
+++ /dev/null
@@ -1,195 +0,0 @@
1/******************************************************************************
2
3 Copyright(c) 2005 Intel Corporation. All rights reserved.
4
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of version 2 of the GNU General Public License as
7 published by the Free Software Foundation.
8
9 This program is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 more details.
13
14 You should have received a copy of the GNU General Public License along with
15 this program; if not, write to the Free Software Foundation, Inc., 59
16 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18 The full GNU General Public License is included in this distribution in the
19 file called LICENSE.
20
21 Contact Information:
22 James P. Ketrenos <ipw2100-admin@linux.intel.com>
23 Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
24
25******************************************************************************/
26#include <linux/compiler.h>
27#include <linux/errno.h>
28#include <linux/if_arp.h>
29#include <linux/in6.h>
30#include <linux/in.h>
31#include <linux/ip.h>
32#include <linux/kernel.h>
33#include <linux/module.h>
34#include <linux/netdevice.h>
35#include <linux/proc_fs.h>
36#include <linux/skbuff.h>
37#include <linux/slab.h>
38#include <linux/tcp.h>
39#include <linux/types.h>
40#include <linux/wireless.h>
41#include <linux/etherdevice.h>
42#include <asm/uaccess.h>
43
44#include <net/ieee80211.h>
45
46int ieee80211_is_valid_channel(struct ieee80211_device *ieee, u8 channel)
47{
48 int i;
49
50 /* Driver needs to initialize the geography map before using
51 * these helper functions */
52 if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
53 return 0;
54
55 if (ieee->freq_band & IEEE80211_24GHZ_BAND)
56 for (i = 0; i < ieee->geo.bg_channels; i++)
57 /* NOTE: If G mode is currently supported but
58 * this is a B only channel, we don't see it
59 * as valid. */
60 if ((ieee->geo.bg[i].channel == channel) &&
61 !(ieee->geo.bg[i].flags & IEEE80211_CH_INVALID) &&
62 (!(ieee->mode & IEEE_G) ||
63 !(ieee->geo.bg[i].flags & IEEE80211_CH_B_ONLY)))
64 return IEEE80211_24GHZ_BAND;
65
66 if (ieee->freq_band & IEEE80211_52GHZ_BAND)
67 for (i = 0; i < ieee->geo.a_channels; i++)
68 if ((ieee->geo.a[i].channel == channel) &&
69 !(ieee->geo.a[i].flags & IEEE80211_CH_INVALID))
70 return IEEE80211_52GHZ_BAND;
71
72 return 0;
73}
74
75int ieee80211_channel_to_index(struct ieee80211_device *ieee, u8 channel)
76{
77 int i;
78
79 /* Driver needs to initialize the geography map before using
80 * these helper functions */
81 if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
82 return -1;
83
84 if (ieee->freq_band & IEEE80211_24GHZ_BAND)
85 for (i = 0; i < ieee->geo.bg_channels; i++)
86 if (ieee->geo.bg[i].channel == channel)
87 return i;
88
89 if (ieee->freq_band & IEEE80211_52GHZ_BAND)
90 for (i = 0; i < ieee->geo.a_channels; i++)
91 if (ieee->geo.a[i].channel == channel)
92 return i;
93
94 return -1;
95}
96
97u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee, u8 channel)
98{
99 const struct ieee80211_channel * ch;
100
101 /* Driver needs to initialize the geography map before using
102 * these helper functions */
103 if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
104 return 0;
105
106 ch = ieee80211_get_channel(ieee, channel);
107 if (!ch->channel)
108 return 0;
109 return ch->freq;
110}
111
112u8 ieee80211_freq_to_channel(struct ieee80211_device * ieee, u32 freq)
113{
114 int i;
115
116 /* Driver needs to initialize the geography map before using
117 * these helper functions */
118 if (ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0)
119 return 0;
120
121 freq /= 100000;
122
123 if (ieee->freq_band & IEEE80211_24GHZ_BAND)
124 for (i = 0; i < ieee->geo.bg_channels; i++)
125 if (ieee->geo.bg[i].freq == freq)
126 return ieee->geo.bg[i].channel;
127
128 if (ieee->freq_band & IEEE80211_52GHZ_BAND)
129 for (i = 0; i < ieee->geo.a_channels; i++)
130 if (ieee->geo.a[i].freq == freq)
131 return ieee->geo.a[i].channel;
132
133 return 0;
134}
135
136int ieee80211_set_geo(struct ieee80211_device *ieee,
137 const struct ieee80211_geo *geo)
138{
139 memcpy(ieee->geo.name, geo->name, 3);
140 ieee->geo.name[3] = '\0';
141 ieee->geo.bg_channels = geo->bg_channels;
142 ieee->geo.a_channels = geo->a_channels;
143 memcpy(ieee->geo.bg, geo->bg, geo->bg_channels *
144 sizeof(struct ieee80211_channel));
145 memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels *
146 sizeof(struct ieee80211_channel));
147 return 0;
148}
149
150const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device *ieee)
151{
152 return &ieee->geo;
153}
154
155u8 ieee80211_get_channel_flags(struct ieee80211_device * ieee, u8 channel)
156{
157 int index = ieee80211_channel_to_index(ieee, channel);
158
159 if (index == -1)
160 return IEEE80211_CH_INVALID;
161
162 if (channel <= IEEE80211_24GHZ_CHANNELS)
163 return ieee->geo.bg[index].flags;
164
165 return ieee->geo.a[index].flags;
166}
167
168static const struct ieee80211_channel bad_channel = {
169 .channel = 0,
170 .flags = IEEE80211_CH_INVALID,
171 .max_power = 0,
172};
173
174const struct ieee80211_channel *ieee80211_get_channel(struct ieee80211_device
175 *ieee, u8 channel)
176{
177 int index = ieee80211_channel_to_index(ieee, channel);
178
179 if (index == -1)
180 return &bad_channel;
181
182 if (channel <= IEEE80211_24GHZ_CHANNELS)
183 return &ieee->geo.bg[index];
184
185 return &ieee->geo.a[index];
186}
187
188EXPORT_SYMBOL(ieee80211_get_channel);
189EXPORT_SYMBOL(ieee80211_get_channel_flags);
190EXPORT_SYMBOL(ieee80211_is_valid_channel);
191EXPORT_SYMBOL(ieee80211_freq_to_channel);
192EXPORT_SYMBOL(ieee80211_channel_to_freq);
193EXPORT_SYMBOL(ieee80211_channel_to_index);
194EXPORT_SYMBOL(ieee80211_set_geo);
195EXPORT_SYMBOL(ieee80211_get_geo);
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