projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d3236553 JB |
1 | #ifndef __NET_REGULATORY_H |
| 2 | #define __NET_REGULATORY_H | |
| 3 | /* | |
| 4 | * regulatory support structures | |
| 5 | * | |
| 6 | * Copyright 2008-2009 Luis R. Rodriguez <[email protected]> | |
| 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 | */ | |
| 21 | enum 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 | */ | |
| 51 | struct 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 | ||
| 61 | struct ieee80211_freq_range { | |
| 62 | u32 start_freq_khz; | |
| 63 | u32 end_freq_khz; | |
| 64 | u32 max_bandwidth_khz; | |
| 65 | }; | |
| 66 | ||
| 67 | struct ieee80211_power_rule { | |
| 68 | u32 max_antenna_gain; | |
| 69 | u32 max_eirp; | |
| 70 | }; | |
| 71 | ||
| 72 | struct ieee80211_reg_rule { | |
| 73 | struct ieee80211_freq_range freq_range; | |
| 74 | struct ieee80211_power_rule power_rule; | |
| 75 | u32 flags; | |
| 76 | }; | |
| 77 | ||
| 78 | struct 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 |