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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
|
/******************************************************************************
* Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
*
* 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, USA
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* wlanfae <wlanfae@realtek.com>
******************************************************************************/
#include "dot11d.h"
struct channel_list {
u8 Channel[32];
u8 Len;
};
static struct channel_list ChannelPlan[] = {
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 36, 40, 44, 48, 52, 56, 60, 64,
149, 153, 157, 161, 165}, 24},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}, 11},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52, 56,
60, 64}, 21},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
56, 60, 64}, 22},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
56, 60, 64}, 22},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
56, 60, 64}, 22},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 36, 40, 44, 48, 52,
56, 60, 64}, 22},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14}, 14},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}, 13},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 36, 40, 44, 48, 52,
56, 60, 64}, 21}
};
void Dot11d_Init(struct rtllib_device *ieee)
{
struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee);
pDot11dInfo->bEnabled = false;
pDot11dInfo->State = DOT11D_STATE_NONE;
pDot11dInfo->CountryIeLen = 0;
memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
RESET_CIE_WATCHDOG(ieee);
}
void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee)
{
int i, max_chan = 14, min_chan = 1;
ieee->bGlobalDomain = false;
if (ChannelPlan[channel_plan].Len != 0) {
memset(GET_DOT11D_INFO(ieee)->channel_map, 0,
sizeof(GET_DOT11D_INFO(ieee)->channel_map));
for (i = 0; i < ChannelPlan[channel_plan].Len; i++) {
if (ChannelPlan[channel_plan].Channel[i] < min_chan ||
ChannelPlan[channel_plan].Channel[i] > max_chan)
break;
GET_DOT11D_INFO(ieee)->channel_map[ChannelPlan
[channel_plan].Channel[i]] = 1;
}
}
switch (channel_plan) {
case COUNTRY_CODE_GLOBAL_DOMAIN:
ieee->bGlobalDomain = true;
for (i = 12; i <= 14; i++)
GET_DOT11D_INFO(ieee)->channel_map[i] = 2;
ieee->IbssStartChnl = 10;
ieee->ibss_maxjoin_chal = 11;
break;
case COUNTRY_CODE_WORLD_WIDE_13:
for (i = 12; i <= 13; i++)
GET_DOT11D_INFO(ieee)->channel_map[i] = 2;
ieee->IbssStartChnl = 10;
ieee->ibss_maxjoin_chal = 11;
break;
default:
ieee->IbssStartChnl = 1;
ieee->ibss_maxjoin_chal = 14;
break;
}
}
void Dot11d_Reset(struct rtllib_device *ieee)
{
struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee);
u32 i;
memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
for (i = 1; i <= 11; i++)
(pDot11dInfo->channel_map)[i] = 1;
for (i = 12; i <= 14; i++)
(pDot11dInfo->channel_map)[i] = 2;
pDot11dInfo->State = DOT11D_STATE_NONE;
pDot11dInfo->CountryIeLen = 0;
RESET_CIE_WATCHDOG(ieee);
}
void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr,
u16 CoutryIeLen, u8 *pCoutryIe)
{
struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev);
u8 i, j, NumTriples, MaxChnlNum;
struct chnl_txpow_triple *pTriple;
memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1);
memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1);
MaxChnlNum = 0;
NumTriples = (CoutryIeLen - 3) / 3;
pTriple = (struct chnl_txpow_triple *)(pCoutryIe + 3);
for (i = 0; i < NumTriples; i++) {
if (MaxChnlNum >= pTriple->FirstChnl) {
printk(KERN_INFO "Dot11d_UpdateCountryIe(): Invalid"
" country IE, skip it........1\n");
return;
}
if (MAX_CHANNEL_NUMBER < (pTriple->FirstChnl +
pTriple->NumChnls)) {
printk(KERN_INFO "Dot11d_UpdateCountryIe(): Invalid "
"country IE, skip it........2\n");
return;
}
for (j = 0 ; j < pTriple->NumChnls; j++) {
pDot11dInfo->channel_map[pTriple->FirstChnl + j] = 1;
pDot11dInfo->MaxTxPwrDbmList[pTriple->FirstChnl + j] =
pTriple->MaxTxPowerInDbm;
MaxChnlNum = pTriple->FirstChnl + j;
}
pTriple = (struct chnl_txpow_triple *)((u8*)pTriple + 3);
}
UPDATE_CIE_SRC(dev, pTaddr);
pDot11dInfo->CountryIeLen = CoutryIeLen;
memcpy(pDot11dInfo->CountryIeBuf, pCoutryIe, CoutryIeLen);
pDot11dInfo->State = DOT11D_STATE_LEARNED;
}
u8 DOT11D_GetMaxTxPwrInDbm(struct rtllib_device *dev, u8 Channel)
{
struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev);
u8 MaxTxPwrInDbm = 255;
if (MAX_CHANNEL_NUMBER < Channel) {
printk(KERN_INFO "DOT11D_GetMaxTxPwrInDbm(): Invalid "
"Channel\n");
return MaxTxPwrInDbm;
}
if (pDot11dInfo->channel_map[Channel])
MaxTxPwrInDbm = pDot11dInfo->MaxTxPwrDbmList[Channel];
return MaxTxPwrInDbm;
}
void DOT11D_ScanComplete(struct rtllib_device *dev)
{
struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev);
switch (pDot11dInfo->State) {
case DOT11D_STATE_LEARNED:
pDot11dInfo->State = DOT11D_STATE_DONE;
break;
case DOT11D_STATE_DONE:
Dot11d_Reset(dev);
break;
case DOT11D_STATE_NONE:
break;
}
}
int ToLegalChannel(struct rtllib_device *dev, u8 channel)
{
struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(dev);
u8 default_chn = 0;
u32 i;
for (i = 1; i <= MAX_CHANNEL_NUMBER; i++) {
if (pDot11dInfo->channel_map[i] > 0) {
default_chn = i;
break;
}
}
if (MAX_CHANNEL_NUMBER < channel) {
printk(KERN_ERR "%s(): Invalid Channel\n", __func__);
return default_chn;
}
if (pDot11dInfo->channel_map[channel] > 0)
return channel;
return default_chn;
}
|
