diff options
Diffstat (limited to 'drivers/net/wireless/ath9k/regd.c')
| -rw-r--r-- | drivers/net/wireless/ath9k/regd.c | 1188 |
1 files changed, 328 insertions, 860 deletions
diff --git a/drivers/net/wireless/ath9k/regd.c b/drivers/net/wireless/ath9k/regd.c index 64043e99fac..90f0c982430 100644 --- a/drivers/net/wireless/ath9k/regd.c +++ b/drivers/net/wireless/ath9k/regd.c @@ -21,174 +21,323 @@ #include "regd.h" #include "regd_common.h" -static int ath9k_regd_chansort(const void *a, const void *b) -{ - const struct ath9k_channel *ca = a; - const struct ath9k_channel *cb = b; - - return (ca->channel == cb->channel) ? - (ca->channelFlags & CHAN_FLAGS) - - (cb->channelFlags & CHAN_FLAGS) : ca->channel - cb->channel; -} +/* + * 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. + */ -static void -ath9k_regd_sort(void *a, u32 n, u32 size, ath_hal_cmp_t *cmp) -{ - u8 *aa = a; - u8 *ai, *t; - - for (ai = aa + size; --n >= 1; ai += size) - for (t = ai; t > aa; t -= size) { - u8 *u = t - size; - if (cmp(u, t) <= 0) - break; - swap_array(u, t, size); - } -} +/* 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 ath9k_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 ath9k_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 ath9k_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 ath9k_world_regdom_66_69 = { + .n_reg_rules = 3, + .alpha2 = "99", + .reg_rules = { + ATH9K_2GHZ_CH01_11, + ATH9K_5GHZ_ALL, + } +}; + +/* Can be used by 0x67, 0x6A and 0x68 */ +static const struct ieee80211_regdomain ath9k_world_regdom_67_68_6A = { + .n_reg_rules = 4, + .alpha2 = "99", + .reg_rules = { + ATH9K_2GHZ_CH01_11, + ATH9K_2GHZ_CH12_13, + ATH9K_5GHZ_ALL, + } +}; static u16 ath9k_regd_get_eepromRD(struct ath_hal *ah) { return ah->ah_currentRD & ~WORLDWIDE_ROAMING_FLAG; } -static bool ath9k_regd_is_chan_bm_zero(u64 *bitmask) +u16 ath9k_regd_get_rd(struct ath_hal *ah) { - int i; + return ath9k_regd_get_eepromRD(ah); +} - for (i = 0; i < BMLEN; i++) { - if (bitmask[i] != 0) - return false; - } - return true; +bool ath9k_is_world_regd(struct ath_hal *ah) +{ + return isWwrSKU(ah); } -static bool ath9k_regd_is_eeprom_valid(struct ath_hal *ah) +const struct ieee80211_regdomain *ath9k_default_world_regdomain(void) { - u16 rd = ath9k_regd_get_eepromRD(ah); - int i; + /* this is the most restrictive */ + return &ath9k_world_regdom_64; +} - if (rd & COUNTRY_ERD_FLAG) { - u16 cc = rd & ~COUNTRY_ERD_FLAG; - for (i = 0; i < ARRAY_SIZE(allCountries); i++) - if (allCountries[i].countryCode == cc) - return true; - } else { - for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) - if (regDomainPairs[i].regDmnEnum == rd) - return true; +const struct ieee80211_regdomain *ath9k_world_regdomain(struct ath_hal *ah) +{ + switch (ah->regpair->regDmnEnum) { + case 0x60: + case 0x61: + case 0x62: + return &ath9k_world_regdom_60_61_62; + case 0x63: + case 0x65: + return &ath9k_world_regdom_63_65; + case 0x64: + return &ath9k_world_regdom_64; + case 0x66: + case 0x69: + return &ath9k_world_regdom_66_69; + case 0x67: + case 0x68: + case 0x6A: + return &ath9k_world_regdom_67_68_6A; + default: + WARN_ON(1); + return ath9k_default_world_regdomain(); } - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "invalid regulatory domain/country code 0x%x\n", rd); - return false; } -static bool ath9k_regd_is_fcc_midband_supported(struct ath_hal *ah) +/* Enable adhoc on 5 GHz if allowed by 11d */ +static void ath9k_reg_apply_5ghz_adhoc_flags(struct wiphy *wiphy, + enum reg_set_by setby) { - u32 regcap; - - regcap = ah->ah_caps.reg_cap; + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct ath_softc *sc = hw->priv; + struct ieee80211_supported_band *sband; + const struct ieee80211_reg_rule *reg_rule; + struct ieee80211_channel *ch; + unsigned int i; + u32 bandwidth = 0; + int r; + + if (setby != REGDOM_SET_BY_COUNTRY_IE) + return; + if (!test_bit(ATH9K_MODE_11A, + sc->sc_ah->ah_caps.wireless_modes)) + return; - if (regcap & AR_EEPROM_EEREGCAP_EN_FCC_MIDBAND) - return true; - else - return false; + sband = wiphy->bands[IEEE80211_BAND_5GHZ]; + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + 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 + * if it allows us to use it. Note that we would have disabled + * it by applying our static world regdomain by default during + * probe */ + if (!(reg_rule->flags & NL80211_RRF_NO_IBSS)) + ch->flags &= ~NL80211_RRF_NO_IBSS; + } } -static bool ath9k_regd_is_ccode_valid(struct ath_hal *ah, - u16 cc) +/* Allows active scan scan on Ch 12 and 13 */ +static void ath9k_reg_apply_active_scan_flags(struct wiphy *wiphy, + enum reg_set_by setby) { - u16 rd; - int i; - - if (cc == CTRY_DEFAULT) - return true; - if (cc == CTRY_DEBUG) - return true; + struct ieee80211_supported_band *sband; + struct ieee80211_channel *ch; + const struct ieee80211_reg_rule *reg_rule; + u32 bandwidth = 0; + int r; + + /* Force passive scan on Channels 12-13 */ + sband = wiphy->bands[IEEE80211_BAND_2GHZ]; + + /* If no country IE has been received always enable active scan + * on these channels */ + if (setby != 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; + } - rd = ath9k_regd_get_eepromRD(ah); - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, "EEPROM regdomain 0x%x\n", rd); + /* If a country IE has been recieved check its rule for this + * channel first before enabling active scan. The passive scan + * would have been enforced by the initial probe processing on + * our custom regulatory domain. */ - if (rd & COUNTRY_ERD_FLAG) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "EEPROM setting is country code %u\n", - rd & ~COUNTRY_ERD_FLAG); - return cc == (rd & ~COUNTRY_ERD_FLAG); + 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; } - for (i = 0; i < ARRAY_SIZE(allCountries); i++) { - if (cc == allCountries[i].countryCode) { -#ifdef AH_SUPPORT_11D - if ((rd & WORLD_SKU_MASK) == WORLD_SKU_PREFIX) - return true; -#endif - if (allCountries[i].regDmnEnum == rd || - rd == DEBUG_REG_DMN || rd == NO_ENUMRD) - return true; - } + 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; } - return false; } -static void -ath9k_regd_get_wmodes_nreg(struct ath_hal *ah, - struct country_code_to_enum_rd *country, - struct regDomain *rd5GHz, - unsigned long *modes_allowed) +/* Always apply Radar/DFS rules on freq range 5260 MHz - 5700 MHz */ +void ath9k_reg_apply_radar_flags(struct wiphy *wiphy) { - bitmap_copy(modes_allowed, ah->ah_caps.wireless_modes, ATH9K_MODE_MAX); + struct ieee80211_supported_band *sband; + struct ieee80211_channel *ch; + unsigned int i; - if (test_bit(ATH9K_MODE_11G, ah->ah_caps.wireless_modes) && - (!country->allow11g)) - clear_bit(ATH9K_MODE_11G, modes_allowed); + if (!wiphy->bands[IEEE80211_BAND_5GHZ]) + return; - if (test_bit(ATH9K_MODE_11A, ah->ah_caps.wireless_modes) && - (ath9k_regd_is_chan_bm_zero(rd5GHz->chan11a))) - clear_bit(ATH9K_MODE_11A, modes_allowed); + sband = wiphy->bands[IEEE80211_BAND_5GHZ]; - if (test_bit(ATH9K_MODE_11NG_HT20, ah->ah_caps.wireless_modes) - && (!country->allow11ng20)) - clear_bit(ATH9K_MODE_11NG_HT20, modes_allowed); + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + if (ch->center_freq < 5260) + continue; + if (ch->center_freq > 5700) + 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; + } +} - if (test_bit(ATH9K_MODE_11NA_HT20, ah->ah_caps.wireless_modes) - && (!country->allow11na20)) - clear_bit(ATH9K_MODE_11NA_HT20, modes_allowed); +void ath9k_reg_apply_world_flags(struct wiphy *wiphy, enum reg_set_by setby) +{ + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct ath_softc *sc = hw->priv; + struct ath_hal *ah = sc->sc_ah; + + switch (ah->regpair->regDmnEnum) { + case 0x60: + case 0x63: + case 0x66: + case 0x67: + ath9k_reg_apply_5ghz_adhoc_flags(wiphy, setby); + break; + case 0x68: + ath9k_reg_apply_5ghz_adhoc_flags(wiphy, setby); + ath9k_reg_apply_active_scan_flags(wiphy, setby); + break; + } + return; +} - if (test_bit(ATH9K_MODE_11NG_HT40PLUS, ah->ah_caps.wireless_modes) && - (!country->allow11ng40)) - clear_bit(ATH9K_MODE_11NG_HT40PLUS, modes_allowed); +int ath9k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request) +{ + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct ath_softc *sc = hw->priv; - if (test_bit(ATH9K_MODE_11NG_HT40MINUS, ah->ah_caps.wireless_modes) && - (!country->allow11ng40)) - clear_bit(ATH9K_MODE_11NG_HT40MINUS, modes_allowed); + /* We always apply this */ + ath9k_reg_apply_radar_flags(wiphy); - if (test_bit(ATH9K_MODE_11NA_HT40PLUS, ah->ah_caps.wireless_modes) && - (!country->allow11na40)) - clear_bit(ATH9K_MODE_11NA_HT40PLUS, modes_allowed); + switch (request->initiator) { + case REGDOM_SET_BY_DRIVER: + case REGDOM_SET_BY_INIT: + case REGDOM_SET_BY_CORE: + case REGDOM_SET_BY_USER: + break; + case REGDOM_SET_BY_COUNTRY_IE: + if (ath9k_is_world_regd(sc->sc_ah)) + ath9k_reg_apply_world_flags(wiphy, request->initiator); + break; + } - if (test_bit(ATH9K_MODE_11NA_HT40MINUS, ah->ah_caps.wireless_modes) && - (!country->allow11na40)) - clear_bit(ATH9K_MODE_11NA_HT40MINUS, modes_allowed); + return 0; } -bool ath9k_regd_is_public_safety_sku(struct ath_hal *ah) +bool ath9k_regd_is_eeprom_valid(struct ath_hal *ah) { - u16 rd; - - rd = ath9k_regd_get_eepromRD(ah); + u16 rd = ath9k_regd_get_eepromRD(ah); + int i; - switch (rd) { - case FCC4_FCCA: - case (CTRY_UNITED_STATES_FCC49 | COUNTRY_ERD_FLAG): - return true; - case DEBUG_REG_DMN: - case NO_ENUMRD: - if (ah->ah_countryCode == CTRY_UNITED_STATES_FCC49) - return true; - break; + if (rd & COUNTRY_ERD_FLAG) { + /* EEPROM value is a country code */ + u16 cc = rd & ~COUNTRY_ERD_FLAG; + for (i = 0; i < ARRAY_SIZE(allCountries); i++) + if (allCountries[i].countryCode == cc) + return true; + } else { + /* EEPROM value is a regpair value */ + for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) + if (regDomainPairs[i].regDmnEnum == rd) + return true; } + DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, + "invalid regulatory domain/country code 0x%x\n", rd); return false; } +/* EEPROM country code to regpair mapping */ static struct country_code_to_enum_rd* ath9k_regd_find_country(u16 countryCode) { @@ -201,10 +350,23 @@ ath9k_regd_find_country(u16 countryCode) return NULL; } +/* EEPROM rd code to regpair mapping */ +static struct country_code_to_enum_rd* +ath9k_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 ath9k_regd_get_default_country(struct ath_hal *ah) { u16 rd; - int i; rd = ath9k_regd_get_eepromRD(ah); if (rd & COUNTRY_ERD_FLAG) { @@ -216,798 +378,104 @@ static u16 ath9k_regd_get_default_country(struct ath_hal *ah) return cc; } - for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) - if (regDomainPairs[i].regDmnEnum == rd) { - if (regDomainPairs[i].singleCC != 0) - return regDomainPairs[i].singleCC; - else - i = ARRAY_SIZE(regDomainPairs); - } return CTRY_DEFAULT; } -static bool ath9k_regd_is_valid_reg_domain(int regDmn, - struct regDomain *rd) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(regDomains); i++) { - if (regDomains[i].regDmnEnum == regDmn) { - if (rd != NULL) { - memcpy(rd, ®Domains[i], - sizeof(struct regDomain)); - } - return true; - } - } - return false; -} - -static bool ath9k_regd_is_valid_reg_domainPair(int regDmnPair) +static struct reg_dmn_pair_mapping* +ath9k_get_regpair(int regdmn) { int i; - if (regDmnPair == NO_ENUMRD) - return false; + if (regdmn == NO_ENUMRD) + return NULL; for (i = 0; i < ARRAY_SIZE(regDomainPairs); i++) { - if (regDomainPairs[i].regDmnEnum == regDmnPair) - return true; + if (regDomainPairs[i].regDmnEnum == regdmn) + return ®DomainPairs[i]; } - return false; -} - -static bool -ath9k_regd_get_wmode_regdomain(struct ath_hal *ah, int regDmn, - u16 channelFlag, struct regDomain *rd) -{ - int i, found; - u64 flags = NO_REQ; - struct reg_dmn_pair_mapping *regPair = NULL; - int regOrg; - - regOrg = regDmn; - if (regDmn == CTRY_DEFAULT) { - u16 rdnum; - rdnum = ath9k_regd_get_eepromRD(ah); - - if (!(rdnum & COUNTRY_ERD_FLAG)) { - if (ath9k_regd_is_valid_reg_domain(rdnum, NULL) || - ath9k_regd_is_valid_reg_domainPair(rdnum)) { - regDmn = rdnum; - } - } - } - - if ((regDmn & MULTI_DOMAIN_MASK) == 0) { - for (i = 0, found = 0; - (i < ARRAY_SIZE(regDomainPairs)) && (!found); i++) { - if (regDomainPairs[i].regDmnEnum == regDmn) { - regPair = ®DomainPairs[i]; - found = 1; - } - } - if (!found) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Failed to find reg domain pair %u\n", regDmn); - return false; - } - if (!(channelFlag & CHANNEL_2GHZ)) { - regDmn = regPair->regDmn5GHz; - flags = regPair->flags5GHz; - } - if (channelFlag & CHANNEL_2GHZ) { - regDmn = regPair->regDmn2GHz; - flags = regPair->flags2GHz; - } - } - - found = ath9k_regd_is_valid_reg_domain(regDmn, rd); - if (!found) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Failed to find unitary reg domain %u\n", regDmn); - return false; - } else { - rd->pscan &= regPair->pscanMask; - if (((regOrg & MULTI_DOMAIN_MASK) == 0) && - (flags != NO_REQ)) { - rd->flags = flags; - } - - rd->flags &= (channelFlag & CHANNEL_2GHZ) ? - REG_DOMAIN_2GHZ_MASK : REG_DOMAIN_5GHZ_MASK; - return true; - } -} - -static bool ath9k_regd_is_bit_set(int bit, u64 *bitmask) -{ - int byteOffset, bitnum; - u64 val; - - byteOffset = bit / 64; - bitnum = bit - byteOffset * 64; - val = ((u64) 1) << bitnum; - if (bitmask[byteOffset] & val) - return true; - else - return false; -} - -static void -ath9k_regd_add_reg_classid(u8 *regclassids, u32 maxregids, - u32 *nregids, u8 regclassid) -{ - int i; - - if (regclassid == 0) - return; - - for (i = 0; i < maxregids; i++) { - if (regclassids[i] == regclassid) - return; - if (regclassids[i] == 0) - break; - } - - if (i == maxregids) - return; - else { - regclassids[i] = regclassid; - *nregids += 1; - } - - return; -} - -static bool -ath9k_regd_get_eeprom_reg_ext_bits(struct ath_hal *ah, - enum reg_ext_bitmap bit) -{ - return (ah->ah_currentRDExt & (1 << bit)) ? true : false; -} - -#ifdef ATH_NF_PER_CHAN - -static void ath9k_regd_init_rf_buffer(struct ath9k_channel *ichans, - int nchans) -{ - int i, j, next; - - for (next = 0; next < nchans; next++) { - for (i = 0; i < NUM_NF_READINGS; i++) { - ichans[next].nfCalHist[i].currIndex = 0; - ichans[next].nfCalHist[i].privNF = - AR_PHY_CCA_MAX_GOOD_VALUE; - ichans[next].nfCalHist[i].invalidNFcount = - AR_PHY_CCA_FILTERWINDOW_LENGTH; - for (j = 0; j < ATH9K_NF_CAL_HIST_MAX; j++) { - ichans[next].nfCalHist[i].nfCalBuffer[j] = - AR_PHY_CCA_MAX_GOOD_VALUE; - } - } - } -} -#endif - -static int ath9k_regd_is_chan_present(struct ath_hal *ah, - u16 c) -{ - int i; - - for (i = 0; i < 150; i++) { - if (!ah->ah_channels[i].channel) - return -1; - else if (ah->ah_channels[i].channel == c) - return i; - } - - return -1; -} - -static bool -ath9k_regd_add_channel(struct ath_hal *ah, - u16 c, - u16 c_lo, - u16 c_hi, - u16 maxChan, - u8 ctl, - int pos, - struct regDomain rd5GHz, - struct RegDmnFreqBand *fband, - struct regDomain *rd, - const struct cmode *cm, - struct ath9k_channel *ichans, - bool enableExtendedChannels) -{ - struct ath9k_channel *chan; - int ret; - u32 channelFlags = 0; - u8 privFlags = 0; - - if (!(c_lo <= c && c <= c_hi)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "c %u out of range [%u..%u]\n", - c, c_lo, c_hi); - return false; - } - if ((fband->channelBW == CHANNEL_HALF_BW) && - !(ah->ah_caps.hw_caps & ATH9K_HW_CAP_CHAN_HALFRATE)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Skipping %u half rate channel\n", c); - return false; - } - - if ((fband->channelBW == CHANNEL_QUARTER_BW) && - !(ah->ah_caps.hw_caps & ATH9K_HW_CAP_CHAN_QUARTERRATE)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Skipping %u quarter rate channel\n", c); - return false; - } - - if (((c + fband->channelSep) / 2) > (maxChan + HALF_MAXCHANBW)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "c %u > maxChan %u\n", c, maxChan); - return false; - } - - if ((fband->usePassScan & IS_ECM_CHAN) && !enableExtendedChannels) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Skipping ecm channel\n"); - return false; - } - - if ((rd->flags & NO_HOSTAP) && (ah->ah_opmode == NL80211_IFTYPE_AP)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Skipping HOSTAP channel\n"); - return false; - } - - if (IS_HT40_MODE(cm->mode) && - !(ath9k_regd_get_eeprom_reg_ext_bits(ah, REG_EXT_FCC_DFS_HT40)) && - (fband->useDfs) && - (rd->conformanceTestLimit != MKK)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Skipping HT40 channel (en_fcc_dfs_ht40 = 0)\n"); - return false; - } - - if (IS_HT40_MODE(cm->mode) && - !(ath9k_regd_get_eeprom_reg_ext_bits(ah, - REG_EXT_JAPAN_NONDFS_HT40)) && - !(fband->useDfs) && (rd->conformanceTestLimit == MKK)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Skipping HT40 channel (en_jap_ht40 = 0)\n"); - return false; - } - - if (IS_HT40_MODE(cm->mode) && - !(ath9k_regd_get_eeprom_reg_ext_bits(ah, REG_EXT_JAPAN_DFS_HT40)) && - (fband->useDfs) && - (rd->conformanceTestLimit == MKK)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Skipping HT40 channel (en_jap_dfs_ht40 = 0)\n"); - return false; - } - - /* Calculate channel flags */ - - channelFlags = cm->flags; - - switch (fband->channelBW) { - case CHANNEL_HALF_BW: - channelFlags |= CHANNEL_HALF; - break; - case CHANNEL_QUARTER_BW: - channelFlags |= CHANNEL_QUARTER; - break; - } - - if (fband->usePassScan & rd->pscan) - channelFlags |= CHANNEL_PASSIVE; - else - channelFlags &= ~CHANNEL_PASSIVE; - if (fband->useDfs & rd->dfsMask) - privFlags = CHANNEL_DFS; - else - privFlags = 0; - if (rd->flags & LIMIT_FRAME_4MS) - privFlags |= CHANNEL_4MS_LIMIT; - if (privFlags & CHANNEL_DFS) - privFlags |= CHANNEL_DISALLOW_ADHOC; - if (rd->flags & ADHOC_PER_11D) - privFlags |= CHANNEL_PER_11D_ADHOC; - - if (channelFlags & CHANNEL_PASSIVE) { - if ((c < 2412) || (c > 2462)) { - if (rd5GHz.regDmnEnum == MKK1 || - rd5GHz.regDmnEnum == MKK2) { - u32 regcap = ah->ah_caps.reg_cap; - if (!(regcap & - (AR_EEPROM_EEREGCAP_EN_KK_U1_EVEN | - AR_EEPROM_EEREGCAP_EN_KK_U2 | - AR_EEPROM_EEREGCAP_EN_KK_MIDBAND)) && - isUNII1OddChan(c)) { - channelFlags &= ~CHANNEL_PASSIVE; - } else { - privFlags |= CHANNEL_DISALLOW_ADHOC; - } - } else { - privFlags |= CHANNEL_DISALLOW_ADHOC; - } - } - } - - if ((cm->mode == ATH9K_MODE_11A) || - (cm->mode == ATH9K_MODE_11NA_HT20) || - (cm->mode == ATH9K_MODE_11NA_HT40PLUS) || - (cm->mode == ATH9K_MODE_11NA_HT40MINUS)) { - if (rd->flags & (ADHOC_NO_11A | DISALLOW_ADHOC_11A)) - privFlags |= CHANNEL_DISALLOW_ADHOC; - } - - /* Fill in channel details */ - - ret = ath9k_regd_is_chan_present(ah, c); - if (ret == -1) { - chan = &ah->ah_channels[pos]; - chan->channel = c; - chan->maxRegTxPower = fband->powerDfs; - chan->antennaMax = fband->antennaMax; - chan->regDmnFlags = rd->flags; - chan->maxTxPower = AR5416_MAX_RATE_POWER; - chan->minTxPower = AR5416_MAX_RATE_POWER; - chan->channelFlags = channelFlags; - chan->privFlags = privFlags; - } else { - chan = &ah->ah_channels[ret]; - chan->channelFlags |= channelFlags; - chan->privFlags |= privFlags; - } - - /* Set CTLs */ - - if ((cm->flags & CHANNEL_ALL) == CHANNEL_A) - chan->conformanceTestLimit[0] = ctl; - else if ((cm->flags & CHANNEL_ALL) == CHANNEL_B) - chan->conformanceTestLimit[1] = ctl; - else if ((cm->flags & CHANNEL_ALL) == CHANNEL_G) - chan->conformanceTestLimit[2] = ctl; - - return (ret == -1) ? true : false; -} - -static bool ath9k_regd_japan_check(struct ath_hal *ah, - int b, - struct regDomain *rd5GHz) -{ - bool skipband = false; - int i; - u32 regcap; - - for (i = 0; i < ARRAY_SIZE(j_bandcheck); i++) { - if (j_bandcheck[i].freqbandbit == b) { - regcap = ah->ah_caps.reg_cap; - if ((j_bandcheck[i].eepromflagtocheck & regcap) == 0) { - skipband = true; - } else if ((regcap & AR_EEPROM_EEREGCAP_EN_KK_U2) || - (regcap & AR_EEPROM_EEREGCAP_EN_KK_MIDBAND)) { - rd5GHz->dfsMask |= DFS_MKK4; - rd5GHz->pscan |= PSCAN_MKK3; - } - break; - } - } - - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Skipping %d freq band\n", j_bandcheck[i].freqbandbit); - - return skipband; + return NULL; } -bool -ath9k_regd_init_channels(struct ath_hal *ah, - u32 maxchans, - u32 *nchans, u8 *regclassids, - u32 maxregids, u32 *nregids, u16 cc, - bool enableOutdoor, - bool enableExtendedChannels) +int ath9k_regd_init(struct ath_hal *ah) { - u16 maxChan = 7000; struct country_code_to_enum_rd *country = NULL; - struct regDomain rd5GHz, rd2GHz; - const struct cmode *cm; - struct ath9k_channel *ichans = &ah->ah_channels[0]; - int next = 0, b; - u8 ctl; int regdmn; - u16 chanSep; - unsigned long *modes_avail; - DECLARE_BITMAP(modes_allowed, ATH9K_MODE_MAX); - - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, "cc %u %s %s\n", cc, - enableOutdoor ? "Enable outdoor" : "", - enableExtendedChannels ? "Enable ecm" : ""); - - if (!ath9k_regd_is_ccode_valid(ah, cc)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Invalid country code %d\n", cc); - return false; - } if (!ath9k_regd_is_eeprom_valid(ah)) { DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, "Invalid EEPROM contents\n"); - return false; + return -EINVAL; } ah->ah_countryCode = ath9k_regd_get_default_country(ah); - if (ah->ah_countryCode == CTRY_DEFAULT) { - ah->ah_countryCode = cc & COUNTRY_CODE_MASK; - if ((ah->ah_countryCode == CTRY_DEFAULT) && - (ath9k_regd_get_eepromRD(ah) == CTRY_DEFAULT)) { - ah->ah_countryCode = CTRY_UNITED_STATES; - } - } + if (ah->ah_countryCode == CTRY_DEFAULT && + ath9k_regd_get_eepromRD(ah) == CTRY_DEFAULT) + ah->ah_countryCode = CTRY_UNITED_STATES; -#ifdef AH_SUPPORT_11D if (ah->ah_countryCode == CTRY_DEFAULT) { regdmn = ath9k_regd_get_eepromRD(ah); country = NULL; } else { -#endif country = ath9k_regd_find_country(ah->ah_countryCode); if (country == NULL) { DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, "Country is NULL!!!!, cc= %d\n", ah->ah_countryCode); - return false; - } else { + return -EINVAL; + } else regdmn = country->regDmnEnum; -#ifdef AH_SUPPORT_11D - if (((ath9k_regd_get_eepromRD(ah) & - WORLD_SKU_MASK) == WORLD_SKU_PREFIX) && - (cc == CTRY_UNITED_STATES)) { - if (!isWwrSKU_NoMidband(ah) - && ath9k_regd_is_fcc_midband_supported(ah)) - regdmn = FCC3_FCCA; - else - regdmn = FCC1_FCCA; - } -#endif - } -#ifdef AH_SUPPORT_11D - } -#endif - if (!ath9k_regd_get_wmode_regdomain(ah, - regdmn, - ~CHANNEL_2GHZ, - &rd5GHz)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Couldn't find unitary " - "5GHz reg domain for country %u\n", - ah->ah_countryCode); - return false; - } - if (!ath9k_regd_get_wmode_regdomain(ah, - regdmn, - CHANNEL_2GHZ, - &rd2GHz)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Couldn't find unitary 2GHz " - "reg domain for country %u\n", - ah->ah_countryCode); - return false; } - if (!isWwrSKU(ah) && ((rd5GHz.regDmnEnum == FCC1) || - (rd5GHz.regDmnEnum == FCC2))) { - if (ath9k_regd_is_fcc_midband_supported(ah)) { - if (!ath9k_regd_get_wmode_regdomain(ah, - FCC3_FCCA, - ~CHANNEL_2GHZ, - &rd5GHz)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Couldn't find unitary 5GHz " - "reg domain for country %u\n", - ah->ah_countryCode); - return false; - } - } - } - - if (country == NULL) { - modes_avail = ah->ah_caps.wireless_modes; - } else { - ath9k_regd_get_wmodes_nreg(ah, country, &rd5GHz, modes_allowed); - modes_avail = modes_allowed; - - if (!enableOutdoor) - maxChan = country->outdoorChanStart; - } - - next = 0; - - if (maxchans > ARRAY_SIZE(ah->ah_channels)) - maxchans = ARRAY_SIZE(ah->ah_channels); - - for (cm = modes; cm < &modes[ARRAY_SIZE(modes)]; cm++) { - u16 c, c_hi, c_lo; - u64 *channelBM = NULL; - struct regDomain *rd = NULL; - struct RegDmnFreqBand *fband = NULL, *freqs; - int8_t low_adj = 0, hi_adj = 0; - - if (!test_bit(cm->mode, modes_avail)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "!avail mode %d flags 0x%x\n", - cm->mode, cm->flags); - continue; - } - if (!ath9k_get_channel_edges(ah, cm->flags, &c_lo, &c_hi)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "channels 0x%x not supported " - "by hardware\n", cm->flags); - continue; - } - - switch (cm->mode) { - case ATH9K_MODE_11A: - case ATH9K_MODE_11NA_HT20: - case ATH9K_MODE_11NA_HT40PLUS: - case ATH9K_MODE_11NA_HT40MINUS: - rd = &rd5GHz; - channelBM = rd->chan11a; - freqs = ®Dmn5GhzFreq[0]; - ctl = rd->conformanceTestLimit; - break; - case ATH9K_MODE_11B: - rd = &rd2GHz; - channelBM = rd->chan11b; - freqs = ®Dmn2GhzFreq[0]; - ctl = rd->conformanceTestLimit | CTL_11B; - break; - case ATH9K_MODE_11G: - case ATH9K_MODE_11NG_HT20: - case ATH9K_MODE_11NG_HT40PLUS: - case ATH9K_MODE_11NG_HT40MINUS: - rd = &rd2GHz; - channelBM = rd->chan11g; - freqs = ®Dmn2Ghz11gFreq[0]; - ctl = rd->conformanceTestLimit | CTL_11G; - break; - default: - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "Unknown HAL mode 0x%x\n", cm->mode); - continue; - } - - if (ath9k_regd_is_chan_bm_zero(channelBM)) - continue; - - if ((cm->mode == ATH9K_MODE_11NA_HT40PLUS) || - (cm->mode == ATH9K_MODE_11NG_HT40PLUS)) { - hi_adj = -20; - } - - if ((cm->mode == ATH9K_MODE_11NA_HT40MINUS) || - (cm->mode == ATH9K_MODE_11NG_HT40MINUS)) { - low_adj = 20; - } - - /* XXX: Add a helper here instead */ - for (b = 0; b < 64 * BMLEN; b++) { - if (ath9k_regd_is_bit_set(b, channelBM)) { - fband = &freqs[b]; - if (rd5GHz.regDmnEnum == MKK1 - || rd5GHz.regDmnEnum == MKK2) { - if (ath9k_regd_japan_check(ah, - b, - &rd5GHz)) - continue; - } - - ath9k_regd_add_reg_classid(regclassids, - maxregids, - nregids, - fband-> - regClassId); - - if (IS_HT40_MODE(cm->mode) && (rd == &rd5GHz)) { - chanSep = 40; - if (fband->lowChannel == 5280) - low_adj += 20; - - if (fband->lowChannel == 5170) - continue; - } else - chanSep = fband->channelSep; - - for (c = fband->lowChannel + low_adj; - ((c <= (fband->highChannel + hi_adj)) && - (c >= (fband->lowChannel + low_adj))); - c += chanSep) { - if (next >= maxchans) { - DPRINTF(ah->ah_sc, - ATH_DBG_REGULATORY, - "too many channels " - "for channel table\n"); - goto done; - } - if (ath9k_regd_add_channel(ah, - c, c_lo, c_hi, - maxChan, ctl, - next, - rd5GHz, - fband, rd, cm, - ichans, - enableExtendedChannels)) - next++; - } - if (IS_HT40_MODE(cm->mode) && - (fband->lowChannel == 5280)) { - low_adj -= 20; - } - } - } - } -done: - if (next != 0) { - int i; + ah->ah_currentRDInUse = regdmn; + ah->regpair = ath9k_get_regpair(regdmn); - if (next > ARRAY_SIZE(ah->ah_channels)) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "too many channels %u; truncating to %u\n", - next, (int) ARRAY_SIZE(ah->ah_channels)); - next = ARRAY_SIZE(ah->ah_channels); - } -#ifdef ATH_NF_PER_CHAN - ath9k_regd_init_rf_buffer(ichans, next); -#endif - ath9k_regd_sort(ichans, next, - sizeof(struct ath9k_channel), - ath9k_regd_chansort); - - ah->ah_nchan = next; - - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, "Channel list:\n"); - for (i = 0; i < next; i++) { - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "chan: %d flags: 0x%x\n", - ah->ah_channels[i].channel, - ah->ah_channels[i].channelFlags); - } + if (!ah->regpair) { + DPRINTF(ah->ah_sc, ATH_DBG_FATAL, + "No regulatory domain pair found, cannot continue\n"); + return -EINVAL; } - *nchans = next; - ah->ah_countryCode = ah->ah_countryCode; + if (!country) + country = ath9k_regd_find_country_by_rd(regdmn); - ah->ah_currentRDInUse = regdmn; - ah->ah_currentRD5G = rd5GHz.regDmnEnum; - ah->ah_currentRD2G = rd2GHz.regDmnEnum; - if (country == NULL) { - ah->ah_iso[0] = 0; - ah->ah_iso[1] = 0; + if (country) { + ah->alpha2[0] = country->isoName[0]; + ah->alpha2[1] = country->isoName[1]; } else { - ah->ah_iso[0] = country->isoName[0]; - ah->ah_iso[1] = country->isoName[1]; + ah->alpha2[0] = '0'; + ah->alpha2[1] = '0'; } - return next != 0; -} - -struct ath9k_channel* -ath9k_regd_check_channel(struct ath_hal *ah, - const struct ath9k_channel *c) -{ - struct ath9k_channel *base, *cc; - - int flags = c->channelFlags & CHAN_FLAGS; - int n, lim; - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "channel %u/0x%x (0x%x) requested\n", - c->channel, c->channelFlags, flags); - - cc = ah->ah_curchan; - if (cc != NULL && cc->channel == c->channel && - (cc->channelFlags & CHAN_FLAGS) == flags) { - if ((cc->privFlags & CHANNEL_INTERFERENCE) && - (cc->privFlags & CHANNEL_DFS)) - return NULL; - else - return cc; - } + "Country alpha2 being used: %c%c\n", + "Regpair detected: 0x%0x\n", + ah->alpha2[0], ah->alpha2[1], + ah->regpair->regDmnEnum); - base = ah->ah_channels; - n = ah->ah_nchan; - - for (lim = n; lim != 0; lim >>= 1) { - int d; - cc = &base[lim >> 1]; - d = c->channel - cc->channel; - if (d == 0) { - if ((cc->channelFlags & CHAN_FLAGS) == flags) { - if ((cc->privFlags & CHANNEL_INTERFERENCE) && - (cc->privFlags & CHANNEL_DFS)) - return NULL; - else - return cc; - } - d = flags - (cc->channelFlags & CHAN_FLAGS); - } - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, - "channel %u/0x%x d %d\n", - cc->channel, cc->channelFlags, d); - if (d > 0) { - base = cc + 1; - lim--; - } - } - DPRINTF(ah->ah_sc, ATH_DBG_REGULATORY, "no match for %u/0x%x\n", - c->channel, c->channelFlags); - return NULL; -} - -u32 -ath9k_regd_get_antenna_allowed(struct ath_hal *ah, - struct ath9k_channel *chan) -{ - struct ath9k_channel *ichan = NULL; - - ichan = ath9k_regd_check_channel(ah, chan); - if (!ichan) - return 0; - - return ichan->antennaMax; + return 0; } u32 ath9k_regd_get_ctl(struct ath_hal *ah, struct ath9k_channel *chan) { u32 ctl = NO_CTL; - struct ath9k_channel *ichan; - if (ah->ah_countryCode == CTRY_DEFAULT && isWwrSKU(ah)) { + if (!ah->regpair || + (ah->ah_countryCode == CTRY_DEFAULT && isWwrSKU(ah))) { if (IS_CHAN_B(chan)) ctl = SD_NO_CTL | CTL_11B; else if (IS_CHAN_G(chan)) ctl = SD_NO_CTL | CTL_11G; else ctl = SD_NO_CTL | CTL_11A; - } else { - ichan = ath9k_regd_check_channel(ah, chan); - if (ichan != NULL) { - /* FIXME */ - if (IS_CHAN_A(ichan)) - ctl = ichan->conformanceTestLimit[0]; - else if (IS_CHAN_B(ichan)) - ctl = ichan->conformanceTestLimit[1]; - else if (IS_CHAN_G(ichan)) - ctl = ichan->conformanceTestLimit[2]; - - if (IS_CHAN_G(chan) && (ctl & 0xf) == CTL_11B) - ctl = (ctl & ~0xf) | CTL_11G; - } + return ctl; } - return ctl; -} -void ath9k_regd_get_current_country(struct ath_hal *ah, - struct ath9k_country_entry *ctry) -{ - u16 rd = ath9k_regd_get_eepromRD(ah); + if (IS_CHAN_B(chan)) + ctl = ah->regpair->reg_2ghz_ctl | CTL_11B; + else if (IS_CHAN_G(chan)) + ctl = ah->regpair->reg_5ghz_ctl | CTL_11G; + else + ctl = ah->regpair->reg_5ghz_ctl | CTL_11A; - ctry->isMultidomain = false; - if (rd == CTRY_DEFAULT) - ctry->isMultidomain = true; - else if (!(rd & COUNTRY_ERD_FLAG)) - ctry->isMultidomain = isWwrSKU(ah); - - ctry->countryCode = ah->ah_countryCode; - ctry->regDmnEnum = ah->ah_currentRD; - ctry->regDmn5G = ah->ah_currentRD5G; - ctry->regDmn2G = ah->ah_currentRD2G; - ctry->iso[0] = ah->ah_iso[0]; - ctry->iso[1] = ah->ah_iso[1]; - ctry->iso[2] = ah->ah_iso[2]; + return ctl; } |