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
|
// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
*
* Copyright(c) 2009-2010 Realtek Corporation.
*
*****************************************************************************/
#include <drv_types.h>
#include <rtw_debug.h>
#include <rtw_wifi_regd.h>
/*
* REG_RULE(freq start, freq end, bandwidth, max gain, eirp, reg_flags)
*/
/*
* Only these channels all allow active
* scan on all world regulatory domains
*/
/* 2G chan 01 - chan 11 */
#define RTW_2GHZ_CH01_11 \
REG_RULE(2412 - 10, 2462 + 10, 40, 0, 20, 0)
/*
* We enable active scan on these a case
* by case basis by regulatory domain
*/
/* 2G chan 12 - chan 13, PASSIV SCAN */
#define RTW_2GHZ_CH12_13 \
REG_RULE(2467 - 10, 2472 + 10, 40, 0, 20, \
NL80211_RRF_PASSIVE_SCAN)
/* 2G chan 14, PASSIVS SCAN, NO OFDM (B only) */
#define RTW_2GHZ_CH14 \
REG_RULE(2484 - 10, 2484 + 10, 40, 0, 20, \
NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_OFDM)
static const struct ieee80211_regdomain rtw_regdom_rd = {
.n_reg_rules = 2,
.alpha2 = "99",
.reg_rules = {
RTW_2GHZ_CH01_11,
RTW_2GHZ_CH12_13,
}
};
static int rtw_ieee80211_channel_to_frequency(int chan, int band)
{
/* see 802.11 17.3.8.3.2 and Annex J
* there are overlapping channel numbers in 5GHz and 2GHz bands
*/
/* NL80211_BAND_2GHZ */
if (chan == 14)
return 2484;
else if (chan < 14)
return 2407 + chan * 5;
else
return 0; /* not supported */
}
static void _rtw_reg_apply_flags(struct wiphy *wiphy)
{
struct adapter *padapter = wiphy_to_adapter(wiphy);
struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
RT_CHANNEL_INFO *channel_set = pmlmeext->channel_set;
u8 max_chan_nums = pmlmeext->max_chan_nums;
struct ieee80211_supported_band *sband;
struct ieee80211_channel *ch;
unsigned int i, j;
u16 channel;
u32 freq;
/* all channels disable */
for (i = 0; i < NUM_NL80211_BANDS; i++) {
sband = wiphy->bands[i];
if (sband) {
for (j = 0; j < sband->n_channels; j++) {
ch = &sband->channels[j];
if (ch)
ch->flags = IEEE80211_CHAN_DISABLED;
}
}
}
/* channels apply by channel plans. */
for (i = 0; i < max_chan_nums; i++) {
channel = channel_set[i].ChannelNum;
freq =
rtw_ieee80211_channel_to_frequency(channel,
NL80211_BAND_2GHZ);
ch = ieee80211_get_channel(wiphy, freq);
if (ch) {
if (channel_set[i].ScanType == SCAN_PASSIVE)
ch->flags = IEEE80211_CHAN_NO_IR;
else
ch->flags = 0;
}
}
}
static int _rtw_reg_notifier_apply(struct wiphy *wiphy,
struct regulatory_request *request,
struct rtw_regulatory *reg)
{
/* Hard code flags */
_rtw_reg_apply_flags(wiphy);
return 0;
}
static const struct ieee80211_regdomain *_rtw_regdomain_select(struct
rtw_regulatory
*reg)
{
return &rtw_regdom_rd;
}
static void _rtw_regd_init_wiphy(struct rtw_regulatory *reg,
struct wiphy *wiphy,
void (*reg_notifier)(struct wiphy *wiphy,
struct
regulatory_request *
request))
{
const struct ieee80211_regdomain *regd;
wiphy->reg_notifier = reg_notifier;
wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
wiphy->regulatory_flags &= ~REGULATORY_STRICT_REG;
wiphy->regulatory_flags &= ~REGULATORY_DISABLE_BEACON_HINTS;
regd = _rtw_regdomain_select(reg);
wiphy_apply_custom_regulatory(wiphy, regd);
/* Hard code flags */
_rtw_reg_apply_flags(wiphy);
}
int rtw_regd_init(struct adapter *padapter,
void (*reg_notifier)(struct wiphy *wiphy,
struct regulatory_request *request))
{
struct wiphy *wiphy = padapter->rtw_wdev->wiphy;
_rtw_regd_init_wiphy(NULL, wiphy, reg_notifier);
return 0;
}
void rtw_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
{
struct rtw_regulatory *reg = NULL;
DBG_8192C("%s\n", __func__);
_rtw_reg_notifier_apply(wiphy, request, reg);
}
|
