blob: 47995b81c5d72ee3582b328b8cbfca246a8778b1 [file] [log] [blame]
Johannes Bergd3236552009-04-20 14:31:42 +02001#ifndef __NET_REGULATORY_H
2#define __NET_REGULATORY_H
3/*
4 * regulatory support structures
5 *
6 * Copyright 2008-2009 Luis R. Rodriguez <lrodriguez@atheros.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13
14/**
15 * enum environment_cap - Environment parsed from country IE
16 * @ENVIRON_ANY: indicates country IE applies to both indoor and
17 * outdoor operation.
18 * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation
19 * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation
20 */
21enum environment_cap {
22 ENVIRON_ANY,
23 ENVIRON_INDOOR,
24 ENVIRON_OUTDOOR,
25};
26
27/**
28 * struct regulatory_request - used to keep track of regulatory requests
29 *
30 * @wiphy_idx: this is set if this request's initiator is
31 * %REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
32 * can be used by the wireless core to deal with conflicts
33 * and potentially inform users of which devices specifically
34 * cased the conflicts.
35 * @initiator: indicates who sent this request, could be any of
36 * of those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*)
37 * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
38 * regulatory domain. We have a few special codes:
39 * 00 - World regulatory domain
40 * 99 - built by driver but a specific alpha2 cannot be determined
41 * 98 - result of an intersection between two regulatory domains
42 * @intersect: indicates whether the wireless core should intersect
43 * the requested regulatory domain with the presently set regulatory
44 * domain.
45 * @country_ie_checksum: checksum of the last processed and accepted
46 * country IE
47 * @country_ie_env: lets us know if the AP is telling us we are outdoor,
48 * indoor, or if it doesn't matter
49 * @list: used to insert into the reg_requests_list linked list
50 */
51struct regulatory_request {
52 int wiphy_idx;
53 enum nl80211_reg_initiator initiator;
54 char alpha2[2];
55 bool intersect;
56 u32 country_ie_checksum;
57 enum environment_cap country_ie_env;
58 struct list_head list;
59};
60
61struct ieee80211_freq_range {
62 u32 start_freq_khz;
63 u32 end_freq_khz;
64 u32 max_bandwidth_khz;
65};
66
67struct ieee80211_power_rule {
68 u32 max_antenna_gain;
69 u32 max_eirp;
70};
71
72struct ieee80211_reg_rule {
73 struct ieee80211_freq_range freq_range;
74 struct ieee80211_power_rule power_rule;
75 u32 flags;
76};
77
78struct ieee80211_regdomain {
79 u32 n_reg_rules;
80 char alpha2[2];
81 struct ieee80211_reg_rule reg_rules[];
82};
83
84#define MHZ_TO_KHZ(freq) ((freq) * 1000)
85#define KHZ_TO_MHZ(freq) ((freq) / 1000)
86#define DBI_TO_MBI(gain) ((gain) * 100)
87#define MBI_TO_DBI(gain) ((gain) / 100)
88#define DBM_TO_MBM(gain) ((gain) * 100)
89#define MBM_TO_DBM(gain) ((gain) / 100)
90
91#define REG_RULE(start, end, bw, gain, eirp, reg_flags) \
92{ \
93 .freq_range.start_freq_khz = MHZ_TO_KHZ(start), \
94 .freq_range.end_freq_khz = MHZ_TO_KHZ(end), \
95 .freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw), \
96 .power_rule.max_antenna_gain = DBI_TO_MBI(gain),\
97 .power_rule.max_eirp = DBM_TO_MBM(eirp), \
98 .flags = reg_flags, \
99}
100
101#endif