/* * Copyright (c) 2008-2009 Atheros Communications Inc. * * 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. */ #define pr_fmt(fmt) … #include <linux/kernel.h> #include <linux/export.h> #include <net/cfg80211.h> #include <net/mac80211.h> #include "regd.h" #include "regd_common.h" static int __ath_regd_init(struct ath_regulatory *reg); /* * This is a set of common rules used by our world regulatory domains. * We have 12 world regulatory domains. To save space we consolidate * the regulatory domains in 5 structures by frequency and change * the flags on our reg_notifier() on a case by case basis. */ /* Only these channels all allow active scan on all world regulatory domains */ #define ATH_2GHZ_CH01_11 … /* We enable active scan on these a case by case basis by regulatory domain */ #define ATH_2GHZ_CH12_13 … #define ATH_2GHZ_CH14 … /* We allow IBSS on these on a case by case basis by regulatory domain */ #define ATH_5GHZ_5150_5350 … #define ATH_5GHZ_5470_5850 … #define ATH_5GHZ_5725_5850 … #define ATH_2GHZ_ALL … #define ATH_5GHZ_ALL … /* This one skips what we call "mid band" */ #define ATH_5GHZ_NO_MIDBAND … /* Can be used for: * 0x60, 0x61, 0x62 */ static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = …; /* Can be used by 0x63 and 0x65 */ static const struct ieee80211_regdomain ath_world_regdom_63_65 = …; /* Can be used by 0x64 only */ static const struct ieee80211_regdomain ath_world_regdom_64 = …; /* Can be used by 0x66 and 0x69 */ static const struct ieee80211_regdomain ath_world_regdom_66_69 = …; /* Can be used by 0x67, 0x68, 0x6A and 0x6C */ static const struct ieee80211_regdomain ath_world_regdom_67_68_6A_6C = …; static bool dynamic_country_user_possible(struct ath_regulatory *reg) { … } static bool ath_reg_dyn_country_user_allow(struct ath_regulatory *reg) { … } static inline bool is_wwr_sku(u16 regd) { … } static u16 ath_regd_get_eepromRD(struct ath_regulatory *reg) { … } bool ath_is_world_regd(struct ath_regulatory *reg) { … } EXPORT_SYMBOL(…); static const struct ieee80211_regdomain *ath_default_world_regdomain(void) { … } static const struct ieee80211_regdomain *ath_world_regdomain(struct ath_regulatory *reg) { … } bool ath_is_49ghz_allowed(u16 regdomain) { … } EXPORT_SYMBOL(…); /* Frequency is one where radar detection is required */ static bool ath_is_radar_freq(u16 center_freq, struct ath_regulatory *reg) { … } static void ath_force_clear_no_ir_chan(struct wiphy *wiphy, struct ieee80211_channel *ch) { … } static void ath_force_clear_no_ir_freq(struct wiphy *wiphy, u16 center_freq) { … } static void ath_force_no_ir_chan(struct ieee80211_channel *ch) { … } static void ath_force_no_ir_freq(struct wiphy *wiphy, u16 center_freq) { … } static void __ath_reg_apply_beaconing_flags(struct wiphy *wiphy, struct ath_regulatory *reg, enum nl80211_reg_initiator initiator, struct ieee80211_channel *ch) { … } /* * These exception rules do not apply radar frequencies. * * - We enable initiating radiation if the country IE says its fine: * - If no country IE has been processed and a we determine we have * received a beacon on a channel we can enable initiating radiation. */ static void ath_reg_apply_beaconing_flags(struct wiphy *wiphy, struct ath_regulatory *reg, enum nl80211_reg_initiator initiator) { … } /** * ath_reg_apply_ir_flags() * @wiphy: the wiphy to use * @reg: regulatory structure - used for country selection * @initiator: the regulatory hint initiator * * If no country IE has been received always enable passive scan * and no-ibss on these channels. This is only done for specific * regulatory SKUs. * * If a country IE has been received check its rule for this * channel first before enabling active scan. The passive scan * would have been enforced by the initial processing of our * custom regulatory domain. */ static void ath_reg_apply_ir_flags(struct wiphy *wiphy, struct ath_regulatory *reg, enum nl80211_reg_initiator initiator) { … } /* Always apply Radar/DFS rules on freq range 5500 MHz - 5700 MHz */ static void ath_reg_apply_radar_flags(struct wiphy *wiphy, struct ath_regulatory *reg) { … } static void ath_reg_apply_world_flags(struct wiphy *wiphy, enum nl80211_reg_initiator initiator, struct ath_regulatory *reg) { … } u16 ath_regd_find_country_by_name(char *alpha2) { … } EXPORT_SYMBOL(…); static int __ath_reg_dyn_country(struct wiphy *wiphy, struct ath_regulatory *reg, struct regulatory_request *request) { … } static void ath_reg_dyn_country(struct wiphy *wiphy, struct ath_regulatory *reg, struct regulatory_request *request) { … } void ath_reg_notifier_apply(struct wiphy *wiphy, struct regulatory_request *request, struct ath_regulatory *reg) { … } EXPORT_SYMBOL(…); static bool ath_regd_is_eeprom_valid(struct ath_regulatory *reg) { … } /* EEPROM country code to regpair mapping */ static struct country_code_to_enum_rd* ath_regd_find_country(u16 countryCode) { … } /* EEPROM rd code to regpair mapping */ static struct country_code_to_enum_rd* ath_regd_find_country_by_rd(int regdmn) { … } /* Returns the map of the EEPROM set RD to a country code */ static u16 ath_regd_get_default_country(u16 rd) { … } static struct reg_dmn_pair_mapping* ath_get_regpair(int regdmn) { … } static int ath_regd_init_wiphy(struct ath_regulatory *reg, struct wiphy *wiphy, void (*reg_notifier)(struct wiphy *wiphy, struct regulatory_request *request)) { … } /* * Some users have reported their EEPROM programmed with * 0x8000 set, this is not a supported regulatory domain * but since we have more than one user with it we need * a solution for them. We default to 0x64, which is the * default Atheros world regulatory domain. */ static void ath_regd_sanitize(struct ath_regulatory *reg) { … } static int __ath_regd_init(struct ath_regulatory *reg) { … } int ath_regd_init(struct ath_regulatory *reg, struct wiphy *wiphy, void (*reg_notifier)(struct wiphy *wiphy, struct regulatory_request *request)) { … } EXPORT_SYMBOL(…); u32 ath_regd_get_band_ctl(struct ath_regulatory *reg, enum nl80211_band band) { … } EXPORT_SYMBOL(…);
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