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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | #ifndef __NET_REGULATORY_H #define __NET_REGULATORY_H /* * regulatory support structures * * Copyright 2008-2009 Luis R. Rodriguez <mcgrof@qca.qualcomm.com> * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /** * enum environment_cap - Environment parsed from country IE * @ENVIRON_ANY: indicates country IE applies to both indoor and * outdoor operation. * @ENVIRON_INDOOR: indicates country IE applies only to indoor operation * @ENVIRON_OUTDOOR: indicates country IE applies only to outdoor operation */ enum environment_cap { ENVIRON_ANY, ENVIRON_INDOOR, ENVIRON_OUTDOOR, }; /** * struct regulatory_request - used to keep track of regulatory requests * * @wiphy_idx: this is set if this request's initiator is * %REGDOM_SET_BY_COUNTRY_IE or %REGDOM_SET_BY_DRIVER. This * can be used by the wireless core to deal with conflicts * and potentially inform users of which devices specifically * cased the conflicts. * @initiator: indicates who sent this request, could be any of * of those set in nl80211_reg_initiator (%NL80211_REGDOM_SET_BY_*) * @alpha2: the ISO / IEC 3166 alpha2 country code of the requested * regulatory domain. We have a few special codes: * 00 - World regulatory domain * 99 - built by driver but a specific alpha2 cannot be determined * 98 - result of an intersection between two regulatory domains * 97 - regulatory domain has not yet been configured * @dfs_region: If CRDA responded with a regulatory domain that requires * DFS master operation on a known DFS region (NL80211_DFS_*), * dfs_region represents that region. Drivers can use this and the * @alpha2 to adjust their device's DFS parameters as required. * @intersect: indicates whether the wireless core should intersect * the requested regulatory domain with the presently set regulatory * domain. * @processed: indicates whether or not this requests has already been * processed. When the last request is processed it means that the * currently regulatory domain set on cfg80211 is updated from * CRDA and can be used by other regulatory requests. When a * the last request is not yet processed we must yield until it * is processed before processing any new requests. * @country_ie_checksum: checksum of the last processed and accepted * country IE * @country_ie_env: lets us know if the AP is telling us we are outdoor, * indoor, or if it doesn't matter * @list: used to insert into the reg_requests_list linked list */ struct regulatory_request { int wiphy_idx; enum nl80211_reg_initiator initiator; char alpha2[2]; u8 dfs_region; bool intersect; bool processed; enum environment_cap country_ie_env; struct list_head list; }; struct ieee80211_freq_range { u32 start_freq_khz; u32 end_freq_khz; u32 max_bandwidth_khz; }; struct ieee80211_power_rule { u32 max_antenna_gain; u32 max_eirp; }; struct ieee80211_reg_rule { struct ieee80211_freq_range freq_range; struct ieee80211_power_rule power_rule; u32 flags; }; struct ieee80211_regdomain { u32 n_reg_rules; char alpha2[2]; u8 dfs_region; struct ieee80211_reg_rule reg_rules[]; }; #define MHZ_TO_KHZ(freq) ((freq) * 1000) #define KHZ_TO_MHZ(freq) ((freq) / 1000) #define DBI_TO_MBI(gain) ((gain) * 100) #define MBI_TO_DBI(gain) ((gain) / 100) #define DBM_TO_MBM(gain) ((gain) * 100) #define MBM_TO_DBM(gain) ((gain) / 100) #define REG_RULE(start, end, bw, gain, eirp, reg_flags) \ { \ .freq_range.start_freq_khz = MHZ_TO_KHZ(start), \ .freq_range.end_freq_khz = MHZ_TO_KHZ(end), \ .freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw), \ .power_rule.max_antenna_gain = DBI_TO_MBI(gain),\ .power_rule.max_eirp = DBM_TO_MBM(eirp), \ .flags = reg_flags, \ } #endif |