1 #ifndef __NET_REGULATORY_H
2 #define __NET_REGULATORY_H
4 * regulatory support structures
6 * Copyright 2008-2009 Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
8 * Permission to use, copy, modify, and/or distribute this software for any
9 * purpose with or without fee is hereby granted, provided that the above
10 * copyright notice and this permission notice appear in all copies.
12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
13 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
15 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
16 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
23 * enum environment_cap - Environment parsed from country IE
24 * @ENVIRON_ANY: indicates country IE applies to both indoor and
26 * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation
27 * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation
29 enum environment_cap {
36 * struct regulatory_request - used to keep track of regulatory requests
38 * @wiphy_idx: this is set if this request's initiator is
39 * %REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This
40 * can be used by the wireless core to deal with conflicts
41 * and potentially inform users of which devices specifically
42 * cased the conflicts.
43 * @initiator: indicates who sent this request, could be any of
44 * of those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*)
45 * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested
46 * regulatory domain. We have a few special codes:
47 * 00 - World regulatory domain
48 * 99 - built by driver but a specific alpha2 cannot be determined
49 * 98 - result of an intersection between two regulatory domains
50 * 97 - regulatory domain has not yet been configured
51 * @dfs_region: If CRDA responded with a regulatory domain that requires
52 * DFS master operation on a known DFS region (NL80211_DFS_*),
53 * dfs_region represents that region. Drivers can use this and the
54 * @alpha2 to adjust their device's DFS parameters as required.
55 * @intersect: indicates whether the wireless core should intersect
56 * the requested regulatory domain with the presently set regulatory
58 * @processed: indicates whether or not this requests has already been
59 * processed. When the last request is processed it means that the
60 * currently regulatory domain set on cfg80211 is updated from
61 * CRDA and can be used by other regulatory requests. When a
62 * the last request is not yet processed we must yield until it
63 * is processed before processing any new requests.
64 * @country_ie_checksum: checksum of the last processed and accepted
66 * @country_ie_env: lets us know if the AP is telling us we are outdoor,
67 * indoor, or if it doesn't matter
68 * @list: used to insert into the reg_requests_list linked list
70 struct regulatory_request {
72 enum nl80211_reg_initiator initiator;
77 enum environment_cap country_ie_env;
78 struct list_head list;
81 struct ieee80211_freq_range {
84 u32 max_bandwidth_khz;
87 struct ieee80211_power_rule {
92 struct ieee80211_reg_rule {
93 struct ieee80211_freq_range freq_range;
94 struct ieee80211_power_rule power_rule;
98 struct ieee80211_regdomain {
102 struct ieee80211_reg_rule reg_rules[];
105 #define MHZ_TO_KHZ(freq) ((freq) * 1000)
106 #define KHZ_TO_MHZ(freq) ((freq) / 1000)
107 #define DBI_TO_MBI(gain) ((gain) * 100)
108 #define MBI_TO_DBI(gain) ((gain) / 100)
109 #define DBM_TO_MBM(gain) ((gain) * 100)
110 #define MBM_TO_DBM(gain) ((gain) / 100)
112 #define REG_RULE(start, end, bw, gain, eirp, reg_flags) \
114 .freq_range.start_freq_khz = MHZ_TO_KHZ(start), \
115 .freq_range.end_freq_khz = MHZ_TO_KHZ(end), \
116 .freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw), \
117 .power_rule.max_antenna_gain = DBI_TO_MBI(gain),\
118 .power_rule.max_eirp = DBM_TO_MBM(eirp), \
119 .flags = reg_flags, \