| /* |
| * Copyright (c) 2008-2009 Atheros Communications Inc. |
| * |
| * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011 |
| * Original from Linux kernel 3.0.1 |
| * |
| * 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. |
| */ |
| |
| #include "regd.h" |
| #include "regd_common.h" |
| |
| /* |
| * 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 ATH9K_2GHZ_CH01_11 REG_RULE(2412-10, 2462+10, 40, 0, 20, 0) |
| |
| /* We enable active scan on these a case by case basis by regulatory domain */ |
| #define ATH9K_2GHZ_CH12_13 REG_RULE(2467-10, 2472+10, 40, 0, 20,\ |
| NL80211_RRF_PASSIVE_SCAN) |
| #define ATH9K_2GHZ_CH14 REG_RULE(2484-10, 2484+10, 40, 0, 20,\ |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_OFDM) |
| |
| /* We allow IBSS on these on a case by case basis by regulatory domain */ |
| #define ATH9K_5GHZ_5150_5350 REG_RULE(5150-10, 5350+10, 40, 0, 30,\ |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) |
| #define ATH9K_5GHZ_5470_5850 REG_RULE(5470-10, 5850+10, 40, 0, 30,\ |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) |
| #define ATH9K_5GHZ_5725_5850 REG_RULE(5725-10, 5850+10, 40, 0, 30,\ |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS) |
| |
| #define ATH9K_2GHZ_ALL ATH9K_2GHZ_CH01_11, \ |
| ATH9K_2GHZ_CH12_13, \ |
| ATH9K_2GHZ_CH14 |
| |
| #define ATH9K_5GHZ_ALL ATH9K_5GHZ_5150_5350, \ |
| ATH9K_5GHZ_5470_5850 |
| |
| /* This one skips what we call "mid band" */ |
| #define ATH9K_5GHZ_NO_MIDBAND ATH9K_5GHZ_5150_5350, \ |
| ATH9K_5GHZ_5725_5850 |
| |
| ///* Can be used for: |
| // * 0x60, 0x61, 0x62 */ |
| //static const struct ieee80211_regdomain ath_world_regdom_60_61_62 = { |
| // .n_reg_rules = 5, |
| // .alpha2 = "99", |
| // .reg_rules = { |
| // ATH9K_2GHZ_ALL, |
| // ATH9K_5GHZ_ALL, |
| // } |
| //}; |
| // |
| ///* Can be used by 0x63 and 0x65 */ |
| //static const struct ieee80211_regdomain ath_world_regdom_63_65 = { |
| // .n_reg_rules = 4, |
| // .alpha2 = "99", |
| // .reg_rules = { |
| // ATH9K_2GHZ_CH01_11, |
| // ATH9K_2GHZ_CH12_13, |
| // ATH9K_5GHZ_NO_MIDBAND, |
| // } |
| //}; |
| // |
| ///* Can be used by 0x64 only */ |
| //static const struct ieee80211_regdomain ath_world_regdom_64 = { |
| // .n_reg_rules = 3, |
| // .alpha2 = "99", |
| // .reg_rules = { |
| // ATH9K_2GHZ_CH01_11, |
| // ATH9K_5GHZ_NO_MIDBAND, |
| // } |
| //}; |
| // |
| ///* Can be used by 0x66 and 0x69 */ |
| //static const struct ieee80211_regdomain ath_world_regdom_66_69 = { |
| // .n_reg_rules = 3, |
| // .alpha2 = "99", |
| // .reg_rules = { |
| // ATH9K_2GHZ_CH01_11, |
| // ATH9K_5GHZ_ALL, |
| // } |
| //}; |
| // |
| ///* Can be used by 0x67, 0x68, 0x6A and 0x6C */ |
| //static const struct ieee80211_regdomain ath_world_regdom_67_68_6A_6C = { |
| // .n_reg_rules = 4, |
| // .alpha2 = "99", |
| // .reg_rules = { |
| // ATH9K_2GHZ_CH01_11, |
| // ATH9K_2GHZ_CH12_13, |
| // ATH9K_5GHZ_ALL, |
| // } |
| //}; |
| // |
| //static inline int is_wwr_sku(u16 regd) |
| //{ |
| // return ((regd & COUNTRY_ERD_FLAG) != COUNTRY_ERD_FLAG) && |
| // (((regd & WORLD_SKU_MASK) == WORLD_SKU_PREFIX) || |
| // (regd == WORLD)); |
| //} |
| // |
| //static u16 ath_regd_get_eepromRD(struct ath_regulatory *reg) |
| //{ |
| // return reg->current_rd & ~WORLDWIDE_ROAMING_FLAG; |
| //} |
| // |
| //int ath_is_world_regd(struct ath_regulatory *reg) |
| //{ |
| // return is_wwr_sku(ath_regd_get_eepromRD(reg)); |
| //} |
| // |
| //static const struct ieee80211_regdomain *ath_default_world_regdomain(void) |
| //{ |
| // /* this is the most restrictive */ |
| // return &ath_world_regdom_64; |
| //} |
| // |
| //static const struct |
| //ieee80211_regdomain *ath_world_regdomain(struct ath_regulatory *reg) |
| //{ |
| // switch (reg->regpair->regDmnEnum) { |
| // case 0x60: |
| // case 0x61: |
| // case 0x62: |
| // return &ath_world_regdom_60_61_62; |
| // case 0x63: |
| // case 0x65: |
| // return &ath_world_regdom_63_65; |
| // case 0x64: |
| // return &ath_world_regdom_64; |
| // case 0x66: |
| // case 0x69: |
| // return &ath_world_regdom_66_69; |
| // case 0x67: |
| // case 0x68: |
| // case 0x6A: |
| // case 0x6C: |
| // return &ath_world_regdom_67_68_6A_6C; |
| // default: |
| // WARN_ON(1); |
| // return ath_default_world_regdomain(); |
| // } |
| //} |
| // |
| //int ath_is_49ghz_allowed(u16 regdomain) |
| //{ |
| // /* possibly more */ |
| // return regdomain == MKK9_MKKC; |
| //} |
| // |
| ///* Frequency is one where radar detection is required */ |
| //static int ath_is_radar_freq(u16 center_freq) |
| //{ |
| // return (center_freq >= 5260 && center_freq <= 5700); |
| //} |
| // |
| ///* |
| // * N.B: These exception rules do not apply radar freqs. |
| // * |
| // * - We enable adhoc (or beaconing) if allowed by 11d |
| // * - We enable active scan if the channel is allowed by 11d |
| // * - If no country IE has been processed and a we determine we have |
| // * received a beacon on a channel we can enable active scan and |
| // * adhoc (or beaconing). |
| // */ |
| //static void |
| //ath_reg_apply_beaconing_flags(struct wiphy *wiphy, |
| // enum nl80211_reg_initiator initiator) |
| //{ |
| // int band; |
| // struct ieee80211_supported_band *sband; |
| // const struct ieee80211_reg_rule *reg_rule; |
| // struct net80211_channel *ch; |
| // unsigned int i; |
| // u32 bandwidth = 0; |
| // int r; |
| // |
| // for (band = 0; band < NET80211_NR_BANDS; band++) { |
| // |
| // if (!wiphy->bands[band]) |
| // continue; |
| // |
| // sband = wiphy->bands[band]; |
| // |
| // for (i = 0; i < sband->n_channels; i++) { |
| // |
| // ch = &sband->channels[i]; |
| // |
| // if (ath_is_radar_freq(ch->center_freq) || |
| // (ch->flags & IEEE80211_CHAN_RADAR)) |
| // continue; |
| // |
| // if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) { |
| // r = freq_reg_info(wiphy, |
| // ch->center_freq, |
| // bandwidth, |
| // ®_rule); |
| // if (r) |
| // continue; |
| // /* |
| // * If 11d had a rule for this channel ensure |
| // * we enable adhoc/beaconing if it allows us to |
| // * use it. Note that we would have disabled it |
| // * by applying our static world regdomain by |
| // * default during init, prior to calling our |
| // * regulatory_hint(). |
| // */ |
| // if (!(reg_rule->flags & |
| // NL80211_RRF_NO_IBSS)) |
| // ch->flags &= |
| // ~IEEE80211_CHAN_NO_IBSS; |
| // if (!(reg_rule->flags & |
| // NL80211_RRF_PASSIVE_SCAN)) |
| // ch->flags &= |
| // ~IEEE80211_CHAN_PASSIVE_SCAN; |
| // } else { |
| // if (ch->beacon_found) |
| // ch->flags &= ~(IEEE80211_CHAN_NO_IBSS | |
| // IEEE80211_CHAN_PASSIVE_SCAN); |
| // } |
| // } |
| // } |
| // |
| //} |
| // |
| ///* Allows active scan scan on Ch 12 and 13 */ |
| //static void |
| //ath_reg_apply_active_scan_flags(struct wiphy *wiphy, |
| // enum nl80211_reg_initiator initiator) |
| //{ |
| // struct ieee80211_supported_band *sband; |
| // struct net80211_channel *ch; |
| // const struct ieee80211_reg_rule *reg_rule; |
| // u32 bandwidth = 0; |
| // int r; |
| // |
| // sband = wiphy->bands[NET80211_BAND_2GHZ]; |
| // |
| // /* |
| // * If no country IE has been received always enable active scan |
| // * on these channels. This is only done for specific regulatory SKUs |
| // */ |
| // if (initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE) { |
| // ch = &sband->channels[11]; /* CH 12 */ |
| // if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) |
| // ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; |
| // ch = &sband->channels[12]; /* CH 13 */ |
| // if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) |
| // ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; |
| // return; |
| // } |
| // |
| // /* |
| // * 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. |
| // */ |
| // |
| // ch = &sband->channels[11]; /* CH 12 */ |
| // r = freq_reg_info(wiphy, ch->center_freq, bandwidth, ®_rule); |
| // if (!r) { |
| // if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) |
| // if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) |
| // ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; |
| // } |
| // |
| // ch = &sband->channels[12]; /* CH 13 */ |
| // r = freq_reg_info(wiphy, ch->center_freq, bandwidth, ®_rule); |
| // if (!r) { |
| // if (!(reg_rule->flags & NL80211_RRF_PASSIVE_SCAN)) |
| // if (ch->flags & IEEE80211_CHAN_PASSIVE_SCAN) |
| // ch->flags &= ~IEEE80211_CHAN_PASSIVE_SCAN; |
| // } |
| //} |
| // |
| ///* Always apply Radar/DFS rules on freq range 5260 MHz - 5700 MHz */ |
| //static void ath_reg_apply_radar_flags(struct wiphy *wiphy) |
| //{ |
| // struct ieee80211_supported_band *sband; |
| // struct net80211_channel *ch; |
| // unsigned int i; |
| // |
| // if (!wiphy->bands[NET80211_BAND_5GHZ]) |
| // return; |
| // |
| // sband = wiphy->bands[NET80211_BAND_5GHZ]; |
| // |
| // for (i = 0; i < sband->n_channels; i++) { |
| // ch = &sband->channels[i]; |
| // if (!ath_is_radar_freq(ch->center_freq)) |
| // continue; |
| // /* We always enable radar detection/DFS on this |
| // * frequency range. Additionally we also apply on |
| // * this frequency range: |
| // * - If STA mode does not yet have DFS supports disable |
| // * active scanning |
| // * - If adhoc mode does not support DFS yet then |
| // * disable adhoc in the frequency. |
| // * - If AP mode does not yet support radar detection/DFS |
| // * do not allow AP mode |
| // */ |
| // if (!(ch->flags & IEEE80211_CHAN_DISABLED)) |
| // ch->flags |= IEEE80211_CHAN_RADAR | |
| // IEEE80211_CHAN_NO_IBSS | |
| // IEEE80211_CHAN_PASSIVE_SCAN; |
| // } |
| //} |
| // |
| //static void ath_reg_apply_world_flags(struct wiphy *wiphy, |
| // enum nl80211_reg_initiator initiator, |
| // struct ath_regulatory *reg) |
| //{ |
| // switch (reg->regpair->regDmnEnum) { |
| // case 0x60: |
| // case 0x63: |
| // case 0x66: |
| // case 0x67: |
| // case 0x6C: |
| // ath_reg_apply_beaconing_flags(wiphy, initiator); |
| // break; |
| // case 0x68: |
| // ath_reg_apply_beaconing_flags(wiphy, initiator); |
| // ath_reg_apply_active_scan_flags(wiphy, initiator); |
| // break; |
| // } |
| //} |
| // |
| //int ath_reg_notifier_apply(struct wiphy *wiphy, |
| // struct regulatory_request *request, |
| // struct ath_regulatory *reg) |
| //{ |
| // /* We always apply this */ |
| // ath_reg_apply_radar_flags(wiphy); |
| // |
| // /* |
| // * This would happen when we have sent a custom regulatory request |
| // * a world regulatory domain and the scheduler hasn't yet processed |
| // * any pending requests in the queue. |
| // */ |
| // if (!request) |
| // return 0; |
| // |
| // switch (request->initiator) { |
| // case NL80211_REGDOM_SET_BY_DRIVER: |
| // case NL80211_REGDOM_SET_BY_CORE: |
| // case NL80211_REGDOM_SET_BY_USER: |
| // break; |
| // case NL80211_REGDOM_SET_BY_COUNTRY_IE: |
| // if (ath_is_world_regd(reg)) |
| // ath_reg_apply_world_flags(wiphy, request->initiator, |
| // reg); |
| // break; |
| // } |
| // |
| // return 0; |
| //} |
| // |
| //static int ath_regd_is_eeprom_valid(struct ath_regulatory *reg) |
| //{ |
| // u16 rd = ath_regd_get_eepromRD(reg); |
| // int i; |
| // |
| // if (rd & COUNTRY_ERD_FLAG) { |
| // /* EEPROM value is a country code */ |
| // u16 cc = rd & ~COUNTRY_ERD_FLAG; |
| // DBG2( |
| // "ath: EEPROM indicates we should expect " |
| // "a country code\n"); |
| // for (i = 0; i < ARRAY_SIZE(allCountries); i++) |
| // if (allCountries[i].countryCode == cc) |
| // return 1; |
| // } else { |
| // /* EEPROM value is a regpair value */ |
| // if (rd != CTRY_DEFAULT) |
| // DBG2("ath: EEPROM indicates we " |
| // "should expect a direct regpair map\n"); |
| // for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) |
| // if (regDomainPairs[i].regDmnEnum == rd) |
| // return 1; |
| // } |
| // DBG( |
| // "ath: invalid regulatory domain/country code 0x%x\n", rd); |
| // return 0; |
| //} |
| // |
| ///* EEPROM country code to regpair mapping */ |
| //static struct country_code_to_enum_rd* |
| //ath_regd_find_country(u16 countryCode) |
| //{ |
| // int i; |
| // |
| // for (i = 0; i < ARRAY_SIZE(allCountries); i++) { |
| // if (allCountries[i].countryCode == countryCode) |
| // return &allCountries[i]; |
| // } |
| // return NULL; |
| //} |
| // |
| ///* EEPROM rd code to regpair mapping */ |
| //static struct country_code_to_enum_rd* |
| //ath_regd_find_country_by_rd(int regdmn) |
| //{ |
| // int i; |
| // |
| // for (i = 0; i < ARRAY_SIZE(allCountries); i++) { |
| // if (allCountries[i].regDmnEnum == regdmn) |
| // return &allCountries[i]; |
| // } |
| // return NULL; |
| //} |
| // |
| ///* Returns the map of the EEPROM set RD to a country code */ |
| //static u16 ath_regd_get_default_country(u16 rd) |
| //{ |
| // if (rd & COUNTRY_ERD_FLAG) { |
| // struct country_code_to_enum_rd *country = NULL; |
| // u16 cc = rd & ~COUNTRY_ERD_FLAG; |
| // |
| // country = ath_regd_find_country(cc); |
| // if (country != NULL) |
| // return cc; |
| // } |
| // |
| // return CTRY_DEFAULT; |
| //} |
| // |
| //static struct reg_dmn_pair_mapping* |
| //ath_get_regpair(int regdmn) |
| //{ |
| // int i; |
| // |
| // if (regdmn == NO_ENUMRD) |
| // return NULL; |
| // for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) { |
| // if (regDomainPairs[i].regDmnEnum == regdmn) |
| // return ®DomainPairs[i]; |
| // } |
| // return NULL; |
| //} |
| // |
| //static int |
| //ath_regd_init_wiphy(struct ath_regulatory *reg, |
| // struct wiphy *wiphy, |
| // int (*reg_notifier)(struct wiphy *wiphy, |
| // struct regulatory_request *request)) |
| //{ |
| // const struct ieee80211_regdomain *regd; |
| // |
| // wiphy->reg_notifier = reg_notifier; |
| // wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY; |
| // |
| // if (ath_is_world_regd(reg)) { |
| // /* |
| // * Anything applied here (prior to wiphy registration) gets |
| // * saved on the wiphy orig_* parameters |
| // */ |
| // regd = ath_world_regdomain(reg); |
| // wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY; |
| // } else { |
| // /* |
| // * This gets applied in the case of the absence of CRDA, |
| // * it's our own custom world regulatory domain, similar to |
| // * cfg80211's but we enable passive scanning. |
| // */ |
| // regd = ath_default_world_regdomain(); |
| // } |
| // wiphy_apply_custom_regulatory(wiphy, regd); |
| // ath_reg_apply_radar_flags(wiphy); |
| // ath_reg_apply_world_flags(wiphy, NL80211_REGDOM_SET_BY_DRIVER, reg); |
| // return 0; |
| //} |
| // |
| ///* |
| // * 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) |
| //{ |
| // if (reg->current_rd != COUNTRY_ERD_FLAG) |
| // return; |
| // DBG2("ath: EEPROM regdomain sanitized\n"); |
| // reg->current_rd = 0x64; |
| //} |
| // |
| //int |
| //ath_regd_init(struct ath_regulatory *reg, |
| // struct wiphy *wiphy, |
| // int (*reg_notifier)(struct wiphy *wiphy, |
| // struct regulatory_request *request)) |
| //{ |
| // struct country_code_to_enum_rd *country = NULL; |
| // u16 regdmn; |
| // |
| // if (!reg) |
| // return -EINVAL; |
| // |
| // ath_regd_sanitize(reg); |
| // |
| // DBG2("ath: EEPROM regdomain: 0x%0x\n", reg->current_rd); |
| // |
| // if (!ath_regd_is_eeprom_valid(reg)) { |
| // DBG("ath: Invalid EEPROM contents\n"); |
| // return -EINVAL; |
| // } |
| // |
| // regdmn = ath_regd_get_eepromRD(reg); |
| // reg->country_code = ath_regd_get_default_country(regdmn); |
| // |
| // if (reg->country_code == CTRY_DEFAULT && |
| // regdmn == CTRY_DEFAULT) { |
| // DBG2("ath: EEPROM indicates default " |
| // "country code should be used\n"); |
| // reg->country_code = CTRY_UNITED_STATES; |
| // } |
| // |
| // if (reg->country_code == CTRY_DEFAULT) { |
| // country = NULL; |
| // } else { |
| // DBG2("ath: doing EEPROM country->regdmn " |
| // "map search\n"); |
| // country = ath_regd_find_country(reg->country_code); |
| // if (country == NULL) { |
| // DBG( |
| // "ath: no valid country maps found for " |
| // "country code: 0x%0x\n", |
| // reg->country_code); |
| // return -EINVAL; |
| // } else { |
| // regdmn = country->regDmnEnum; |
| // DBG2("ath: country maps to " |
| // "regdmn code: 0x%0x\n", |
| // regdmn); |
| // } |
| // } |
| // |
| // reg->regpair = ath_get_regpair(regdmn); |
| // |
| // if (!reg->regpair) { |
| // DBG("ath: " |
| // "No regulatory domain pair found, cannot continue\n"); |
| // return -EINVAL; |
| // } |
| // |
| // if (!country) |
| // country = ath_regd_find_country_by_rd(regdmn); |
| // |
| // if (country) { |
| // reg->alpha2[0] = country->isoName[0]; |
| // reg->alpha2[1] = country->isoName[1]; |
| // } else { |
| // reg->alpha2[0] = '0'; |
| // reg->alpha2[1] = '0'; |
| // } |
| // |
| // DBG2("ath: Country alpha2 being used: %c%c\n", |
| // reg->alpha2[0], reg->alpha2[1]); |
| // DBG2("ath: Regpair used: 0x%0x\n", |
| // reg->regpair->regDmnEnum); |
| // |
| // ath_regd_init_wiphy(reg, wiphy, reg_notifier); |
| // return 0; |
| //} |
| |
| u32 ath_regd_get_band_ctl(struct ath_regulatory *reg, |
| int band) |
| { |
| /* TODO Cottsay: reg */ |
| // if (!reg->regpair || |
| // (reg->country_code == CTRY_DEFAULT && |
| // is_wwr_sku(ath_regd_get_eepromRD(reg)))) { |
| // return SD_NO_CTL; |
| // } |
| |
| switch (band) { |
| case NET80211_BAND_2GHZ: |
| return reg->regpair->reg_2ghz_ctl; |
| case NET80211_BAND_5GHZ: |
| return reg->regpair->reg_5ghz_ctl; |
| default: |
| return NO_CTL; |
| } |
| } |
