regulatory.h

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#ifndef __NET_REGULATORY_H
#define __NET_REGULATORY_H
/*
 * regulatory support structures
 *
 * Copyright 2008-2009  Luis R. Rodriguez <[email protected]>
 *
 * 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 {
    ENVIRON_ANY,
    ENVIRON_INDOOR,
    ENVIRON_OUTDOOR,
};

struct regulatory_request {
    int wiphy_idx;
    enum nl80211_reg_initiator initiator;
    enum nl80211_user_reg_hint_type user_reg_hint_type;
    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