diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/ath/ath_regd.c')
| -rw-r--r-- | qemu/roms/ipxe/src/drivers/net/ath/ath_regd.c | 602 |
1 files changed, 602 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/ath/ath_regd.c b/qemu/roms/ipxe/src/drivers/net/ath/ath_regd.c new file mode 100644 index 000000000..190b1f9f5 --- /dev/null +++ b/qemu/roms/ipxe/src/drivers/net/ath/ath_regd.c @@ -0,0 +1,602 @@ +/* + * 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; + } +} |