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#ifndef __NET_REGULATORY_H
#define __NET_REGULATORY_H
/*
* regulatory support structures
*
* Copyright 2008-2009 Luis R. Rodriguez <lrodriguez@atheros.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/**
* 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
* @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];
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];
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
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