+++ /dev/null
-/******************************************************************************
- *
- * Copyright(c) 2009-2012 Realtek Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * wlanfae <wlanfae@realtek.com>
- * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
- * Hsinchu 300, Taiwan.
- *
- * Larry Finger <Larry.Finger@lwfinger.net>
- *
- *****************************************************************************/
-
-#include "wifi.h"
-#include "regd.h"
-
-static struct country_code_to_enum_rd allCountries[] = {
- {COUNTRY_CODE_FCC, "US"},
- {COUNTRY_CODE_IC, "US"},
- {COUNTRY_CODE_ETSI, "EC"},
- {COUNTRY_CODE_SPAIN, "EC"},
- {COUNTRY_CODE_FRANCE, "EC"},
- {COUNTRY_CODE_MKK, "JP"},
- {COUNTRY_CODE_MKK1, "JP"},
- {COUNTRY_CODE_ISRAEL, "EC"},
- {COUNTRY_CODE_TELEC, "JP"},
- {COUNTRY_CODE_MIC, "JP"},
- {COUNTRY_CODE_GLOBAL_DOMAIN, "JP"},
- {COUNTRY_CODE_WORLD_WIDE_13, "EC"},
- {COUNTRY_CODE_TELEC_NETGEAR, "EC"},
-};
-
-/*
- *Only these channels all allow active
- *scan on all world regulatory domains
- */
-#define RTL819x_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 RTL819x_2GHZ_CH12_13 \
- REG_RULE(2467-10, 2472+10, 40, 0, 20,\
- NL80211_RRF_PASSIVE_SCAN)
-
-#define RTL819x_2GHZ_CH14 \
- REG_RULE(2484-10, 2484+10, 40, 0, 20, \
- NL80211_RRF_PASSIVE_SCAN | \
- NL80211_RRF_NO_OFDM)
-
-
-/* 5G chan 36 - chan 64*/
-#define RTL819x_5GHZ_5150_5350 \
- REG_RULE(5150-10, 5350+10, 80, 0, 30, 0)
-/* 5G chan 100 - chan 165*/
-#define RTL819x_5GHZ_5470_5850 \
- REG_RULE(5470-10, 5850+10, 80, 0, 30, 0)
-/* 5G chan 149 - chan 165*/
-#define RTL819x_5GHZ_5725_5850 \
- REG_RULE(5725-10, 5850+10, 80, 0, 30, 0)
-
-#define RTL819x_5GHZ_ALL \
- (RTL819x_5GHZ_5150_5350, RTL819x_5GHZ_5470_5850)
-
-static const struct ieee80211_regdomain rtl_regdom_11 = {
- .n_reg_rules = 1,
- .alpha2 = "99",
- .reg_rules = {
- RTL819x_2GHZ_CH01_11,
- }
-};
-
-static const struct ieee80211_regdomain rtl_regdom_12_13 = {
- .n_reg_rules = 2,
- .alpha2 = "99",
- .reg_rules = {
- RTL819x_2GHZ_CH01_11,
- RTL819x_2GHZ_CH12_13,
- }
-};
-
-static const struct ieee80211_regdomain rtl_regdom_no_midband = {
- .n_reg_rules = 3,
- .alpha2 = "99",
- .reg_rules = {
- RTL819x_2GHZ_CH01_11,
- RTL819x_5GHZ_5150_5350,
- RTL819x_5GHZ_5725_5850,
- }
-};
-
-static const struct ieee80211_regdomain rtl_regdom_60_64 = {
- .n_reg_rules = 3,
- .alpha2 = "99",
- .reg_rules = {
- RTL819x_2GHZ_CH01_11,
- RTL819x_2GHZ_CH12_13,
- RTL819x_5GHZ_5725_5850,
- }
-};
-
-static const struct ieee80211_regdomain rtl_regdom_14_60_64 = {
- .n_reg_rules = 4,
- .alpha2 = "99",
- .reg_rules = {
- RTL819x_2GHZ_CH01_11,
- RTL819x_2GHZ_CH12_13,
- RTL819x_2GHZ_CH14,
- RTL819x_5GHZ_5725_5850,
- }
-};
-
-static const struct ieee80211_regdomain rtl_regdom_14 = {
- .n_reg_rules = 3,
- .alpha2 = "99",
- .reg_rules = {
- RTL819x_2GHZ_CH01_11,
- RTL819x_2GHZ_CH12_13,
- RTL819x_2GHZ_CH14,
- }
-};
-
-static bool _rtl_is_radar_freq(u16 center_freq)
-{
- return center_freq >= 5260 && center_freq <= 5700;
-}
-
-static void _rtl_reg_apply_beaconing_flags(struct wiphy *wiphy,
- enum nl80211_reg_initiator initiator)
-{
- enum ieee80211_band band;
- struct ieee80211_supported_band *sband;
- const struct ieee80211_reg_rule *reg_rule;
- struct ieee80211_channel *ch;
- unsigned int i;
-
- for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
-
- if (!wiphy->bands[band])
- continue;
-
- sband = wiphy->bands[band];
-
- for (i = 0; i < sband->n_channels; i++) {
- ch = &sband->channels[i];
- if (_rtl_is_radar_freq(ch->center_freq) ||
- (ch->flags & IEEE80211_CHAN_RADAR))
- continue;
- if (initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE) {
- reg_rule = freq_reg_info(wiphy,
- ch->center_freq);
- if (IS_ERR(reg_rule))
- 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 _rtl_reg_apply_active_scan_flags(struct wiphy *wiphy,
- enum nl80211_reg_initiator
- initiator)
-{
- struct ieee80211_supported_band *sband;
- struct ieee80211_channel *ch;
- const struct ieee80211_reg_rule *reg_rule;
-
- if (!wiphy->bands[IEEE80211_BAND_2GHZ])
- return;
- sband = wiphy->bands[IEEE80211_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 recieved 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 */
- reg_rule = freq_reg_info(wiphy, ch->center_freq);
- if (!IS_ERR(reg_rule)) {
- 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 */
- reg_rule = freq_reg_info(wiphy, ch->center_freq);
- if (!IS_ERR(reg_rule)) {
- 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 _rtl_reg_apply_radar_flags(struct wiphy *wiphy)
-{
- struct ieee80211_supported_band *sband;
- struct ieee80211_channel *ch;
- unsigned int i;
-
- if (!wiphy->bands[IEEE80211_BAND_5GHZ])
- return;
-
- sband = wiphy->bands[IEEE80211_BAND_5GHZ];
-
- for (i = 0; i < sband->n_channels; i++) {
- ch = &sband->channels[i];
- if (!_rtl_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 _rtl_reg_apply_world_flags(struct wiphy *wiphy,
- enum nl80211_reg_initiator initiator,
- struct rtl_regulatory *reg)
-{
- _rtl_reg_apply_beaconing_flags(wiphy, initiator);
- _rtl_reg_apply_active_scan_flags(wiphy, initiator);
- return;
-}
-
-static void _rtl_dump_channel_map(struct wiphy *wiphy)
-{
- enum ieee80211_band band;
- struct ieee80211_supported_band *sband;
- struct ieee80211_channel *ch;
- unsigned int i;
-
- for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
- if (!wiphy->bands[band])
- continue;
- sband = wiphy->bands[band];
- for (i = 0; i < sband->n_channels; i++)
- ch = &sband->channels[i];
- }
-}
-
-static int _rtl_reg_notifier_apply(struct wiphy *wiphy,
- struct regulatory_request *request,
- struct rtl_regulatory *reg)
-{
- /* We always apply this */
- _rtl_reg_apply_radar_flags(wiphy);
-
- 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:
- _rtl_reg_apply_world_flags(wiphy, request->initiator, reg);
- break;
- }
-
- _rtl_dump_channel_map(wiphy);
-
- return 0;
-}
-
-static const struct ieee80211_regdomain *_rtl_regdomain_select(
- struct rtl_regulatory *reg)
-{
- switch (reg->country_code) {
- case COUNTRY_CODE_FCC:
- return &rtl_regdom_no_midband;
- case COUNTRY_CODE_IC:
- return &rtl_regdom_11;
- case COUNTRY_CODE_ETSI:
- case COUNTRY_CODE_TELEC_NETGEAR:
- return &rtl_regdom_60_64;
- case COUNTRY_CODE_SPAIN:
- case COUNTRY_CODE_FRANCE:
- case COUNTRY_CODE_ISRAEL:
- case COUNTRY_CODE_WORLD_WIDE_13:
- return &rtl_regdom_12_13;
- case COUNTRY_CODE_MKK:
- case COUNTRY_CODE_MKK1:
- case COUNTRY_CODE_TELEC:
- case COUNTRY_CODE_MIC:
- return &rtl_regdom_14_60_64;
- case COUNTRY_CODE_GLOBAL_DOMAIN:
- return &rtl_regdom_14;
- default:
- return &rtl_regdom_no_midband;
- }
-}
-
-static int _rtl_regd_init_wiphy(struct rtl_regulatory *reg,
- struct wiphy *wiphy,
- void (*reg_notifier)(struct wiphy *wiphy,
- struct regulatory_request *
- request))
-{
- const struct ieee80211_regdomain *regd;
-
- wiphy->reg_notifier = reg_notifier;
-
- wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG;
- wiphy->regulatory_flags &= ~REGULATORY_STRICT_REG;
- wiphy->regulatory_flags &= ~REGULATORY_DISABLE_BEACON_HINTS;
- regd = _rtl_regdomain_select(reg);
- wiphy_apply_custom_regulatory(wiphy, regd);
- _rtl_reg_apply_radar_flags(wiphy);
- _rtl_reg_apply_world_flags(wiphy, NL80211_REGDOM_SET_BY_DRIVER, reg);
- return 0;
-}
-
-static struct country_code_to_enum_rd *_rtl_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;
-}
-
-int rtl_regd_init(struct ieee80211_hw *hw,
- void (*reg_notifier)(struct wiphy *wiphy,
- struct regulatory_request *request))
-{
- struct rtl_priv *rtlpriv = rtl_priv(hw);
- struct wiphy *wiphy = hw->wiphy;
- struct country_code_to_enum_rd *country = NULL;
-
- if (wiphy == NULL || &rtlpriv->regd == NULL)
- return -EINVAL;
-
- /* init country_code from efuse channel plan */
- rtlpriv->regd.country_code = rtlpriv->efuse.channel_plan;
-
- RT_TRACE(rtlpriv, COMP_REGD, DBG_TRACE,
- "rtl: EEPROM regdomain: 0x%0x\n",
- rtlpriv->regd.country_code);
-
- if (rtlpriv->regd.country_code >= COUNTRY_CODE_MAX) {
- RT_TRACE(rtlpriv, COMP_REGD, DBG_DMESG,
- "rtl: EEPROM indicates invalid contry code, world wide 13 should be used\n");
-
- rtlpriv->regd.country_code = COUNTRY_CODE_WORLD_WIDE_13;
- }
-
- country = _rtl_regd_find_country(rtlpriv->regd.country_code);
-
- if (country) {
- rtlpriv->regd.alpha2[0] = country->iso_name[0];
- rtlpriv->regd.alpha2[1] = country->iso_name[1];
- } else {
- rtlpriv->regd.alpha2[0] = '0';
- rtlpriv->regd.alpha2[1] = '0';
- }
-
- RT_TRACE(rtlpriv, COMP_REGD, DBG_TRACE,
- "rtl: Country alpha2 being used: %c%c\n",
- rtlpriv->regd.alpha2[0], rtlpriv->regd.alpha2[1]);
-
- _rtl_regd_init_wiphy(&rtlpriv->regd, wiphy, reg_notifier);
-
- return 0;
-}
-
-void rtl_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)
-{
- struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
- struct rtl_priv *rtlpriv = rtl_priv(hw);
-
- RT_TRACE(rtlpriv, COMP_REGD, DBG_LOUD, "\n");
-
- _rtl_reg_notifier_apply(wiphy, request, &rtlpriv->regd);
-}
Code Review / kvmfornfv.git / blobdiff