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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
Luis R. Rodriguez09d989d2010-01-29 19:58:57 -050042 * 97 - regulatory domain has not yet been configured
Johannes Bergd3236552009-04-20 14:31:42 +020043 * @intersect: indicates whether the wireless core should intersect
44 * the requested regulatory domain with the presently set regulatory
45 * domain.
46 * @country_ie_checksum: checksum of the last processed and accepted
47 * country IE
48 * @country_ie_env: lets us know if the AP is telling us we are outdoor,
49 * indoor, or if it doesn't matter
50 * @list: used to insert into the reg_requests_list linked list
51 */
52struct regulatory_request {
53 int wiphy_idx;
54 enum nl80211_reg_initiator initiator;
55 char alpha2[2];
56 bool intersect;
57 u32 country_ie_checksum;
58 enum environment_cap country_ie_env;
59 struct list_head list;
60};
61
62struct ieee80211_freq_range {
63 u32 start_freq_khz;
64 u32 end_freq_khz;
65 u32 max_bandwidth_khz;
66};
67
68struct ieee80211_power_rule {
69 u32 max_antenna_gain;
70 u32 max_eirp;
71};
72
73struct ieee80211_reg_rule {
74 struct ieee80211_freq_range freq_range;
75 struct ieee80211_power_rule power_rule;
76 u32 flags;
77};
78
79struct ieee80211_regdomain {
80 u32 n_reg_rules;
81 char alpha2[2];
82 struct ieee80211_reg_rule reg_rules[];
83};
84
85#define MHZ_TO_KHZ(freq) ((freq) * 1000)
86#define KHZ_TO_MHZ(freq) ((freq) / 1000)
87#define DBI_TO_MBI(gain) ((gain) * 100)
88#define MBI_TO_DBI(gain) ((gain) / 100)
89#define DBM_TO_MBM(gain) ((gain) * 100)
90#define MBM_TO_DBM(gain) ((gain) / 100)
91
92#define REG_RULE(start, end, bw, gain, eirp, reg_flags) \
93{ \
94 .freq_range.start_freq_khz = MHZ_TO_KHZ(start), \
95 .freq_range.end_freq_khz = MHZ_TO_KHZ(end), \
96 .freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw), \
97 .power_rule.max_antenna_gain = DBI_TO_MBI(gain),\
98 .power_rule.max_eirp = DBM_TO_MBM(eirp), \
99 .flags = reg_flags, \
100}
101
102#endif