diff --git a/drivers/net/wireless/brcm80211/brcmsmac/channel.c b/drivers/net/wireless/brcm80211/brcmsmac/channel.c index c311ef7e99a7..65ef60bf9c8f 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/channel.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/channel.c @@ -15,7 +15,9 @@ */ #include +#include #include +#include #include #include "pub.h" @@ -23,6 +25,7 @@ #include "main.h" #include "stf.h" #include "channel.h" +#include "mac80211_if.h" /* QDB() macro takes a dB value and converts to a quarter dB value */ #define QDB(n) ((n) * BRCMS_TXPWR_DB_FACTOR) @@ -108,6 +111,39 @@ (((c) < 100) ? 2 : \ (((c) < 149) ? 3 : 4)))) +#define BRCM_2GHZ_2412_2462 REG_RULE(2412-10, 2462+10, 40, 0, 19, 0) +#define BRCM_2GHZ_2467_2472 REG_RULE(2467-10, 2472+10, 20, 0, 19, \ + NL80211_RRF_PASSIVE_SCAN | \ + NL80211_RRF_NO_IBSS) + +#define BRCM_5GHZ_5180_5240 REG_RULE(5180-10, 5240+10, 40, 0, 21, \ + NL80211_RRF_PASSIVE_SCAN | \ + NL80211_RRF_NO_IBSS) +#define BRCM_5GHZ_5260_5320 REG_RULE(5260-10, 5320+10, 40, 0, 21, \ + NL80211_RRF_PASSIVE_SCAN | \ + NL80211_RRF_DFS | \ + NL80211_RRF_NO_IBSS) +#define BRCM_5GHZ_5500_5700 REG_RULE(5500-10, 5700+10, 40, 0, 21, \ + NL80211_RRF_PASSIVE_SCAN | \ + NL80211_RRF_DFS | \ + NL80211_RRF_NO_IBSS) +#define BRCM_5GHZ_5745_5825 REG_RULE(5745-10, 5825+10, 40, 0, 21, \ + NL80211_RRF_PASSIVE_SCAN | \ + NL80211_RRF_NO_IBSS) + +static const struct ieee80211_regdomain brcms_regdom_x2 = { + .n_reg_rules = 7, + .alpha2 = "X2", + .reg_rules = { + BRCM_2GHZ_2412_2462, + BRCM_2GHZ_2467_2472, + BRCM_5GHZ_5180_5240, + BRCM_5GHZ_5260_5320, + BRCM_5GHZ_5500_5700, + BRCM_5GHZ_5745_5825, + } +}; + struct brcms_cm_band { /* struct locale_info flags */ u8 locale_flags; @@ -137,14 +173,15 @@ struct country_info { const u8 locale_mimo_5G; /* 5G mimo info */ }; +struct brcms_regd { + struct country_info country; + const struct ieee80211_regdomain *regdomain; +}; + struct brcms_cm_info { struct brcms_pub *pub; struct brcms_c_info *wlc; - char srom_ccode[BRCM_CNTRY_BUF_SZ]; /* Country Code in SROM */ - uint srom_regrev; /* Regulatory Rev for the SROM ccode */ - const struct country_info *country; /* current country def */ - uint regrev; /* current Regulatory Revision */ - char country_abbrev[BRCM_CNTRY_BUF_SZ]; /* current advertised ccode */ + const struct brcms_regd *world_regd; /* per-band state (one per phy/radio) */ struct brcms_cm_band bandstate[MAXBANDS]; /* quiet channels currently for radar sensitivity or 11h support */ @@ -408,12 +445,12 @@ static const struct locale_mimo_info *g_mimo_5g_table[] = { &locale_11n }; -static const struct { - char abbrev[BRCM_CNTRY_BUF_SZ]; /* country abbreviation */ - struct country_info country; -} cntry_locales[] = { +static const struct brcms_regd cntry_locales[] = { + /* Worldwide RoW 2, must always be at index 0 */ { - "X2", LOCALES(i, 11, bn, 11n)}, /* Worldwide RoW 2 */ + .country = LOCALES(i, 11, bn, 11n), + .regdomain = &brcms_regdom_x2, + }, }; static const struct locale_info *brcms_c_get_locale_2g(u8 locale_idx) @@ -482,93 +519,24 @@ static bool brcms_c_country_valid(const char *ccode) return true; } -/* Lookup a country info structure from a null terminated country - * abbreviation and regrev directly with no translation. - */ -static const struct country_info * -brcms_c_country_lookup_direct(const char *ccode, uint regrev) +static const struct brcms_regd *brcms_world_regd(const char *regdom, int len) { - uint size, i; + const struct brcms_regd *regd = NULL; + int i; - /* Should just return 0 for single locale driver. */ - /* Keep it this way in case we add more locales. (for now anyway) */ - - /* - * all other country def arrays are for regrev == 0, so if - * regrev is non-zero, fail - */ - if (regrev > 0) - return NULL; - - /* find matched table entry from country code */ - size = ARRAY_SIZE(cntry_locales); - for (i = 0; i < size; i++) { - if (strcmp(ccode, cntry_locales[i].abbrev) == 0) - return &cntry_locales[i].country; + for (i = 0; i < ARRAY_SIZE(cntry_locales); i++) { + if (!strncmp(regdom, cntry_locales[i].regdomain->alpha2, len)) { + regd = &cntry_locales[i]; + break; + } } - return NULL; + + return regd; } -static const struct country_info * -brcms_c_countrycode_map(struct brcms_cm_info *wlc_cm, const char *ccode, - char *mapped_ccode, uint *mapped_regrev) +static const struct brcms_regd *brcms_default_world_regd(void) { - struct brcms_c_info *wlc = wlc_cm->wlc; - const struct country_info *country; - uint srom_regrev = wlc_cm->srom_regrev; - const char *srom_ccode = wlc_cm->srom_ccode; - - /* check for currently supported ccode size */ - if (strlen(ccode) > (BRCM_CNTRY_BUF_SZ - 1)) { - wiphy_err(wlc->wiphy, "wl%d: %s: ccode \"%s\" too long for " - "match\n", wlc->pub->unit, __func__, ccode); - return NULL; - } - - /* default mapping is the given ccode and regrev 0 */ - strncpy(mapped_ccode, ccode, BRCM_CNTRY_BUF_SZ); - *mapped_regrev = 0; - - /* If the desired country code matches the srom country code, - * then the mapped country is the srom regulatory rev. - * Otherwise look for an aggregate mapping. - */ - if (!strcmp(srom_ccode, ccode)) { - *mapped_regrev = srom_regrev; - wiphy_err(wlc->wiphy, "srom_code == ccode %s\n", __func__); - } - - /* find the matching built-in country definition */ - country = brcms_c_country_lookup_direct(mapped_ccode, *mapped_regrev); - - /* if there is not an exact rev match, default to rev zero */ - if (country == NULL && *mapped_regrev != 0) { - *mapped_regrev = 0; - country = - brcms_c_country_lookup_direct(mapped_ccode, *mapped_regrev); - } - - return country; -} - -/* Lookup a country info structure from a null terminated country code - * The lookup is case sensitive. - */ -static const struct country_info * -brcms_c_country_lookup(struct brcms_c_info *wlc, const char *ccode) -{ - const struct country_info *country; - char mapped_ccode[BRCM_CNTRY_BUF_SZ]; - uint mapped_regrev; - - /* - * map the country code to a built-in country code, regrev, and - * country_info struct - */ - country = brcms_c_countrycode_map(wlc->cmi, ccode, mapped_ccode, - &mapped_regrev); - - return country; + return &cntry_locales[0]; } /* @@ -634,12 +602,6 @@ static bool brcms_c_japan_ccode(const char *ccode) (ccode[1] == 'P' || (ccode[1] >= '1' && ccode[1] <= '9'))); } -/* Returns true if currently set country is Japan or variant */ -static bool brcms_c_japan(struct brcms_c_info *wlc) -{ - return brcms_c_japan_ccode(wlc->cmi->country_abbrev); -} - static void brcms_c_channel_min_txpower_limits_with_local_constraint( struct brcms_cm_info *wlc_cm, struct txpwr_limits *txpwr, @@ -743,8 +705,8 @@ static void brcms_c_channels_commit(struct brcms_cm_info *wlc_cm) mboolset(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE); wiphy_err(wlc->wiphy, "wl%d: %s: no valid channel for \"%s\" " "nbands %d bandlocked %d\n", wlc->pub->unit, - __func__, wlc_cm->country_abbrev, wlc->pub->_nbands, - wlc->bandlocked); + __func__, wlc_cm->world_regd->regdomain->alpha2, + wlc->pub->_nbands, wlc->bandlocked); } else if (mboolisset(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE)) { /* @@ -753,15 +715,6 @@ static void brcms_c_channels_commit(struct brcms_cm_info *wlc_cm) */ mboolclr(wlc->pub->radio_disabled, WL_RADIO_COUNTRY_DISABLE); } - - /* - * Now that the country abbreviation is set, if the radio supports 2G, - * then set channel 14 restrictions based on the new locale. - */ - if (wlc->pub->_nbands > 1 || wlc->band->bandtype == BRCM_BAND_2G) - wlc_phy_chanspec_ch14_widefilter_set(wlc->band->pi, - brcms_c_japan(wlc) ? true : - false); } static int @@ -820,20 +773,13 @@ brcms_c_channels_init(struct brcms_cm_info *wlc_cm, * information found with the country code. */ static void -brcms_c_set_country_common(struct brcms_cm_info *wlc_cm, - const char *country_abbrev, - const char *ccode, uint regrev, - const struct country_info *country) +brcms_c_set_country(struct brcms_cm_info *wlc_cm, + const struct brcms_regd *regd) { + const struct country_info *country = ®d->country; const struct locale_info *locale; struct brcms_c_info *wlc = wlc_cm->wlc; - /* save current country state */ - wlc_cm->country = country; - - strncpy(wlc_cm->country_abbrev, country_abbrev, BRCM_CNTRY_BUF_SZ - 1); - wlc_cm->regrev = regrev; - if ((wlc->pub->_n_enab & SUPPORT_11N) != wlc->protection->nmode_user) brcms_c_set_nmode(wlc); @@ -852,59 +798,13 @@ brcms_c_set_country_common(struct brcms_cm_info *wlc_cm, return; } -static int -brcms_c_set_countrycode_rev(struct brcms_cm_info *wlc_cm, - const char *country_abbrev, - const char *ccode, int regrev) -{ - const struct country_info *country; - char mapped_ccode[BRCM_CNTRY_BUF_SZ]; - uint mapped_regrev; - - /* if regrev is -1, lookup the mapped country code, - * otherwise use the ccode and regrev directly - */ - if (regrev == -1) { - /* - * map the country code to a built-in country - * code, regrev, and country_info - */ - country = - brcms_c_countrycode_map(wlc_cm, ccode, mapped_ccode, - &mapped_regrev); - } else { - /* find the matching built-in country definition */ - country = brcms_c_country_lookup_direct(ccode, regrev); - strncpy(mapped_ccode, ccode, BRCM_CNTRY_BUF_SZ); - mapped_regrev = regrev; - } - - if (country == NULL) - return -EINVAL; - - /* set the driver state for the country */ - brcms_c_set_country_common(wlc_cm, country_abbrev, mapped_ccode, - mapped_regrev, country); - - return 0; -} - -/* - * set the driver's current country and regulatory information using - * a country code as the source. Lookup built in country information - * found with the country code. - */ -static int -brcms_c_set_countrycode(struct brcms_cm_info *wlc_cm, const char *ccode) -{ - return brcms_c_set_countrycode_rev(wlc_cm, ccode, ccode, -1); -} - struct brcms_cm_info *brcms_c_channel_mgr_attach(struct brcms_c_info *wlc) { struct brcms_cm_info *wlc_cm; struct brcms_pub *pub = wlc->pub; struct ssb_sprom *sprom = &wlc->hw->d11core->bus->sprom; + const char *ccode = sprom->alpha2; + int ccode_len = sizeof(sprom->alpha2); BCMMSG(wlc->wiphy, "wl%d\n", wlc->pub->unit); @@ -916,17 +816,27 @@ struct brcms_cm_info *brcms_c_channel_mgr_attach(struct brcms_c_info *wlc) wlc->cmi = wlc_cm; /* store the country code for passing up as a regulatory hint */ - if (sprom->alpha2 && brcms_c_country_valid(sprom->alpha2)) - strncpy(wlc->pub->srom_ccode, sprom->alpha2, sizeof(sprom->alpha2)); + wlc_cm->world_regd = brcms_world_regd(ccode, ccode_len); + if (brcms_c_country_valid(ccode)) + strncpy(wlc->pub->srom_ccode, ccode, ccode_len); + + /* + * If no custom world domain is found in the SROM, use the + * default "X2" domain. + */ + if (!wlc_cm->world_regd) { + wlc_cm->world_regd = brcms_default_world_regd(); + ccode = wlc_cm->world_regd->regdomain->alpha2; + ccode_len = BRCM_CNTRY_BUF_SZ - 1; + } /* save default country for exiting 11d regulatory mode */ - strncpy(wlc->country_default, "X2", BRCM_CNTRY_BUF_SZ - 1); + strncpy(wlc->country_default, ccode, ccode_len); /* initialize autocountry_default to driver default */ - strncpy(wlc->autocountry_default, wlc->country_default, - BRCM_CNTRY_BUF_SZ - 1); + strncpy(wlc->autocountry_default, ccode, ccode_len); - brcms_c_set_countrycode(wlc_cm, wlc->country_default); + brcms_c_set_country(wlc_cm, wlc_cm->world_regd); return wlc_cm; } @@ -994,13 +904,7 @@ brcms_c_channel_reg_limits(struct brcms_cm_info *wlc_cm, u16 chanspec, memset(txpwr, 0, sizeof(struct txpwr_limits)); - if (!brcms_c_valid_chanspec_db(wlc_cm, chanspec)) { - country = brcms_c_country_lookup(wlc, wlc->autocountry_default); - if (country == NULL) - return; - } else { - country = wlc_cm->country; - } + country = &wlc_cm->world_regd->country; chan = CHSPEC_CHANNEL(chanspec); band = wlc->bandstate[chspec_bandunit(chanspec)]; @@ -1252,3 +1156,128 @@ bool brcms_c_valid_chanspec_db(struct brcms_cm_info *wlc_cm, u16 chspec) { return brcms_c_valid_chanspec_ext(wlc_cm, chspec, true); } + +static bool brcms_is_radar_freq(u16 center_freq) +{ + return center_freq >= 5260 && center_freq <= 5700; +} + +static void brcms_reg_apply_radar_flags(struct wiphy *wiphy) +{ + struct ieee80211_supported_band *sband; + struct ieee80211_channel *ch; + int i; + + sband = wiphy->bands[IEEE80211_BAND_5GHZ]; + if (!sband) + return; + + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + + if (!brcms_is_radar_freq(ch->center_freq)) + continue; + + /* + * All channels in this range should be passive and have + * DFS enabled. + */ + if (!(ch->flags & IEEE80211_CHAN_DISABLED)) + ch->flags |= IEEE80211_CHAN_RADAR | + IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_PASSIVE_SCAN; + } +} + +static void +brcms_reg_apply_beaconing_flags(struct wiphy *wiphy, + enum nl80211_reg_initiator initiator) +{ + struct ieee80211_supported_band *sband; + struct ieee80211_channel *ch; + const struct ieee80211_reg_rule *rule; + int band, i, ret; + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + sband = wiphy->bands[band]; + if (!sband) + continue; + + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + + if (ch->flags & + (IEEE80211_CHAN_DISABLED | IEEE80211_CHAN_RADAR)) + continue; + + if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) { + ret = freq_reg_info(wiphy, ch->center_freq, + 0, &rule); + if (ret) + continue; + + if (!(rule->flags & NL80211_RRF_NO_IBSS)) + ch->flags &= ~IEEE80211_CHAN_NO_IBSS; + if (!(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); + } + } + } +} + +static int brcms_reg_notifier(struct wiphy *wiphy, + struct regulatory_request *request) +{ + struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); + struct brcms_info *wl = hw->priv; + struct brcms_c_info *wlc = wl->wlc; + + brcms_reg_apply_radar_flags(wiphy); + + if (request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) + brcms_reg_apply_beaconing_flags(wiphy, request->initiator); + + if (wlc->pub->_nbands > 1 || wlc->band->bandtype == BRCM_BAND_2G) + wlc_phy_chanspec_ch14_widefilter_set(wlc->band->pi, + brcms_c_japan_ccode(request->alpha2)); + + return 0; +} + +void brcms_c_regd_init(struct brcms_c_info *wlc) +{ + struct wiphy *wiphy = wlc->wiphy; + const struct brcms_regd *regd = wlc->cmi->world_regd; + struct ieee80211_supported_band *sband; + struct ieee80211_channel *ch; + struct brcms_chanvec sup_chan; + struct brcms_band *band; + int band_idx, i; + + /* Disable any channels not supported by the phy */ + for (band_idx = 0; band_idx < IEEE80211_NUM_BANDS; band_idx++) { + if (band_idx == IEEE80211_BAND_2GHZ) + band = wlc->bandstate[BAND_2G_INDEX]; + else + band = wlc->bandstate[BAND_5G_INDEX]; + wlc_phy_chanspec_band_validch(band->pi, band->bandtype, + &sup_chan); + + sband = wiphy->bands[band_idx]; + for (i = 0; i < sband->n_channels; i++) { + ch = &sband->channels[i]; + if (!isset(sup_chan.vec, ch->hw_value)) + ch->flags |= IEEE80211_CHAN_DISABLED; + } + } + + wlc->wiphy->reg_notifier = brcms_reg_notifier; + wlc->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | + WIPHY_FLAG_STRICT_REGULATORY; + wiphy_apply_custom_regulatory(wlc->wiphy, regd->regdomain); + brcms_reg_apply_beaconing_flags(wiphy, NL80211_REGDOM_SET_BY_DRIVER); +} diff --git a/drivers/net/wireless/brcm80211/brcmsmac/channel.h b/drivers/net/wireless/brcm80211/brcmsmac/channel.h index 808cb4fbfbe7..de9887d95f2f 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/channel.h +++ b/drivers/net/wireless/brcm80211/brcmsmac/channel.h @@ -49,5 +49,6 @@ extern void brcms_c_channel_reg_limits(struct brcms_cm_info *wlc_cm, extern void brcms_c_channel_set_chanspec(struct brcms_cm_info *wlc_cm, u16 chanspec, u8 local_constraint_qdbm); +extern void brcms_c_regd_init(struct brcms_c_info *wlc); #endif /* _WLC_CHANNEL_H */ diff --git a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c index 341e06a0d6ec..2d5a40412690 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c @@ -1050,6 +1050,8 @@ static struct brcms_info *brcms_attach(struct bcma_device *pdev) goto fail; } + brcms_c_regd_init(wl->wlc); + memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN); if (WARN_ON(!is_valid_ether_addr(perm))) goto fail;