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1 | #ifndef __NET_REGULATORY_H |
2 | #define __NET_REGULATORY_H | |
3 | /* | |
4 | * regulatory support structures | |
5 | * | |
dde88b73 | 6 | * Copyright 2008-2009 Luis R. Rodriguez <mcgrof@qca.qualcomm.com> |
d3236553 | 7 | * |
dde88b73 LR |
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. | |
d3236553 JB |
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 | */ | |
29 | enum 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 | |
09d989d1 | 50 | * 97 - regulatory domain has not yet been configured |
b68e6b3b LR |
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. | |
d3236553 JB |
55 | * @intersect: indicates whether the wireless core should intersect |
56 | * the requested regulatory domain with the presently set regulatory | |
57 | * domain. | |
b2e253cf LR |
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. | |
d3236553 JB |
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 | */ | |
70 | struct regulatory_request { | |
71 | int wiphy_idx; | |
72 | enum nl80211_reg_initiator initiator; | |
73 | char alpha2[2]; | |
b68e6b3b | 74 | u8 dfs_region; |
d3236553 | 75 | bool intersect; |
b2e253cf | 76 | bool processed; |
d3236553 JB |
77 | enum environment_cap country_ie_env; |
78 | struct list_head list; | |
79 | }; | |
80 | ||
81 | struct ieee80211_freq_range { | |
82 | u32 start_freq_khz; | |
83 | u32 end_freq_khz; | |
84 | u32 max_bandwidth_khz; | |
85 | }; | |
86 | ||
87 | struct ieee80211_power_rule { | |
88 | u32 max_antenna_gain; | |
89 | u32 max_eirp; | |
90 | }; | |
91 | ||
92 | struct ieee80211_reg_rule { | |
93 | struct ieee80211_freq_range freq_range; | |
94 | struct ieee80211_power_rule power_rule; | |
95 | u32 flags; | |
96 | }; | |
97 | ||
98 | struct ieee80211_regdomain { | |
99 | u32 n_reg_rules; | |
100 | char alpha2[2]; | |
8b60b078 | 101 | u8 dfs_region; |
d3236553 JB |
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 |