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1#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 * 97 - regulatory domain has not yet been configured
43 * @intersect: indicates whether the wireless core should intersect
44 * the requested regulatory domain with the presently set regulatory
45 * domain.
46 * @processed: indicates whether or not this requests has already been
47 * processed. When the last request is processed it means that the
48 * currently regulatory domain set on cfg80211 is updated from
49 * CRDA and can be used by other regulatory requests. When a
50 * the last request is not yet processed we must yield until it
51 * is processed before processing any new requests.
52 * @country_ie_checksum: checksum of the last processed and accepted
53 * country IE
54 * @country_ie_env: lets us know if the AP is telling us we are outdoor,
55 * indoor, or if it doesn't matter
56 * @list: used to insert into the reg_requests_list linked list
57 */
58struct regulatory_request {
59 int wiphy_idx;
60 enum nl80211_reg_initiator initiator;
61 char alpha2[2];
62 bool intersect;
63 bool processed;
64 enum environment_cap country_ie_env;
65 struct list_head list;
66};
67
68struct ieee80211_freq_range {
69 u32 start_freq_khz;
70 u32 end_freq_khz;
71 u32 max_bandwidth_khz;
72};
73
74struct ieee80211_power_rule {
75 u32 max_antenna_gain;
76 u32 max_eirp;
77};
78
79struct ieee80211_reg_rule {
80 struct ieee80211_freq_range freq_range;
81 struct ieee80211_power_rule power_rule;
82 u32 flags;
83};
84
85struct ieee80211_regdomain {
86 u32 n_reg_rules;
87 char alpha2[2];
88 struct ieee80211_reg_rule reg_rules[];
89};
90
91#define MHZ_TO_KHZ(freq) ((freq) * 1000)
92#define KHZ_TO_MHZ(freq) ((freq) / 1000)
93#define DBI_TO_MBI(gain) ((gain) * 100)
94#define MBI_TO_DBI(gain) ((gain) / 100)
95#define DBM_TO_MBM(gain) ((gain) * 100)
96#define MBM_TO_DBM(gain) ((gain) / 100)
97
98#define REG_RULE(start, end, bw, gain, eirp, reg_flags) \
99{ \
100 .freq_range.start_freq_khz = MHZ_TO_KHZ(start), \
101 .freq_range.end_freq_khz = MHZ_TO_KHZ(end), \
102 .freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw), \
103 .power_rule.max_antenna_gain = DBI_TO_MBI(gain),\
104 .power_rule.max_eirp = DBM_TO_MBM(eirp), \
105 .flags = reg_flags, \
106}
107
108#endif
1#ifndef __NET_REGULATORY_H
2#define __NET_REGULATORY_H
3/*
4 * regulatory support structures
5 *
6 * Copyright 2008-2009 Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
7 *
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.
11 *
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.
19 */
20
21
22/**
23 * enum environment_cap - Environment parsed from country IE
24 * @ENVIRON_ANY: indicates country IE applies to both indoor and
25 * outdoor operation.
26 * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation
27 * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation
28 */
29enum environment_cap {
30 ENVIRON_ANY,
31 ENVIRON_INDOOR,
32 ENVIRON_OUTDOOR,
33};
34
35/**
36 * struct regulatory_request - used to keep track of regulatory requests
37 *
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
57 * domain.
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
65 * country IE
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
69 */
70struct regulatory_request {
71 int wiphy_idx;
72 enum nl80211_reg_initiator initiator;
73 char alpha2[2];
74 u8 dfs_region;
75 bool intersect;
76 bool processed;
77 enum environment_cap country_ie_env;
78 struct list_head list;
79};
80
81struct ieee80211_freq_range {
82 u32 start_freq_khz;
83 u32 end_freq_khz;
84 u32 max_bandwidth_khz;
85};
86
87struct ieee80211_power_rule {
88 u32 max_antenna_gain;
89 u32 max_eirp;
90};
91
92struct ieee80211_reg_rule {
93 struct ieee80211_freq_range freq_range;
94 struct ieee80211_power_rule power_rule;
95 u32 flags;
96};
97
98struct ieee80211_regdomain {
99 u32 n_reg_rules;
100 char alpha2[2];
101 u8 dfs_region;
102 struct ieee80211_reg_rule reg_rules[];
103};
104
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)
111
112#define REG_RULE(start, end, bw, gain, eirp, reg_flags) \
113{ \
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, \
120}
121
122#endif