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1// SPDX-License-Identifier: BSD-3-Clause-Clear2/*3 * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.4 * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.5 */6#include <linux/rtnetlink.h>7#include "core.h"8#include "debug.h"9 10/* World regdom to be used in case default regd from fw is unavailable */11#define ATH12K_2GHZ_CH01_11 REG_RULE(2412 - 10, 2462 + 10, 40, 0, 20, 0)12#define ATH12K_5GHZ_5150_5350 REG_RULE(5150 - 10, 5350 + 10, 80, 0, 30,\13 NL80211_RRF_NO_IR)14#define ATH12K_5GHZ_5725_5850 REG_RULE(5725 - 10, 5850 + 10, 80, 0, 30,\15 NL80211_RRF_NO_IR)16 17#define ETSI_WEATHER_RADAR_BAND_LOW 559018#define ETSI_WEATHER_RADAR_BAND_HIGH 565019#define ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT 60000020 21static const struct ieee80211_regdomain ath12k_world_regd = {22 .n_reg_rules = 3,23 .alpha2 = "00",24 .reg_rules = {25 ATH12K_2GHZ_CH01_11,26 ATH12K_5GHZ_5150_5350,27 ATH12K_5GHZ_5725_5850,28 }29};30 31static bool ath12k_regdom_changes(struct ieee80211_hw *hw, char *alpha2)32{33 const struct ieee80211_regdomain *regd;34 35 regd = rcu_dereference_rtnl(hw->wiphy->regd);36 /* This can happen during wiphy registration where the previous37 * user request is received before we update the regd received38 * from firmware.39 */40 if (!regd)41 return true;42 43 return memcmp(regd->alpha2, alpha2, 2) != 0;44}45 46static void47ath12k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request)48{49 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);50 struct ath12k_wmi_init_country_arg arg;51 struct ath12k_hw *ah = ath12k_hw_to_ah(hw);52 struct ath12k *ar = ath12k_ah_to_ar(ah, 0);53 int ret, i;54 55 ath12k_dbg(ar->ab, ATH12K_DBG_REG,56 "Regulatory Notification received for %s\n", wiphy_name(wiphy));57 58 /* Currently supporting only General User Hints. Cell base user59 * hints to be handled later.60 * Hints from other sources like Core, Beacons are not expected for61 * self managed wiphy's62 */63 if (!(request->initiator == NL80211_REGDOM_SET_BY_USER &&64 request->user_reg_hint_type == NL80211_USER_REG_HINT_USER)) {65 ath12k_warn(ar->ab, "Unexpected Regulatory event for this wiphy\n");66 return;67 }68 69 if (!IS_ENABLED(CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS)) {70 ath12k_dbg(ar->ab, ATH12K_DBG_REG,71 "Country Setting is not allowed\n");72 return;73 }74 75 if (!ath12k_regdom_changes(hw, request->alpha2)) {76 ath12k_dbg(ar->ab, ATH12K_DBG_REG, "Country is already set\n");77 return;78 }79 80 /* Set the country code to the firmware and wait for81 * the WMI_REG_CHAN_LIST_CC EVENT for updating the82 * reg info83 */84 arg.flags = ALPHA_IS_SET;85 memcpy(&arg.cc_info.alpha2, request->alpha2, 2);86 arg.cc_info.alpha2[2] = 0;87 88 /* Allow fresh updates to wiphy regd */89 ah->regd_updated = false;90 91 /* Send the reg change request to all the radios */92 for_each_ar(ah, ar, i) {93 ret = ath12k_wmi_send_init_country_cmd(ar, &arg);94 if (ret)95 ath12k_warn(ar->ab,96 "INIT Country code set to fw failed : %d\n", ret);97 }98}99 100int ath12k_reg_update_chan_list(struct ath12k *ar)101{102 struct ieee80211_supported_band **bands;103 struct ath12k_wmi_scan_chan_list_arg *arg;104 struct ieee80211_channel *channel;105 struct ieee80211_hw *hw = ath12k_ar_to_hw(ar);106 struct ath12k_wmi_channel_arg *ch;107 enum nl80211_band band;108 int num_channels = 0;109 int i, ret;110 111 bands = hw->wiphy->bands;112 for (band = 0; band < NUM_NL80211_BANDS; band++) {113 if (!(ar->mac.sbands[band].channels && bands[band]))114 continue;115 116 for (i = 0; i < bands[band]->n_channels; i++) {117 if (bands[band]->channels[i].flags &118 IEEE80211_CHAN_DISABLED)119 continue;120 121 num_channels++;122 }123 }124 125 if (WARN_ON(!num_channels))126 return -EINVAL;127 128 arg = kzalloc(struct_size(arg, channel, num_channels), GFP_KERNEL);129 130 if (!arg)131 return -ENOMEM;132 133 arg->pdev_id = ar->pdev->pdev_id;134 arg->nallchans = num_channels;135 136 ch = arg->channel;137 138 for (band = 0; band < NUM_NL80211_BANDS; band++) {139 if (!(ar->mac.sbands[band].channels && bands[band]))140 continue;141 142 for (i = 0; i < bands[band]->n_channels; i++) {143 channel = &bands[band]->channels[i];144 145 if (channel->flags & IEEE80211_CHAN_DISABLED)146 continue;147 148 /* TODO: Set to true/false based on some condition? */149 ch->allow_ht = true;150 ch->allow_vht = true;151 ch->allow_he = true;152 153 ch->dfs_set =154 !!(channel->flags & IEEE80211_CHAN_RADAR);155 ch->is_chan_passive = !!(channel->flags &156 IEEE80211_CHAN_NO_IR);157 ch->is_chan_passive |= ch->dfs_set;158 ch->mhz = channel->center_freq;159 ch->cfreq1 = channel->center_freq;160 ch->minpower = 0;161 ch->maxpower = channel->max_power * 2;162 ch->maxregpower = channel->max_reg_power * 2;163 ch->antennamax = channel->max_antenna_gain * 2;164 165 /* TODO: Use appropriate phymodes */166 if (channel->band == NL80211_BAND_2GHZ)167 ch->phy_mode = MODE_11G;168 else169 ch->phy_mode = MODE_11A;170 171 if (channel->band == NL80211_BAND_6GHZ &&172 cfg80211_channel_is_psc(channel))173 ch->psc_channel = true;174 175 ath12k_dbg(ar->ab, ATH12K_DBG_WMI,176 "mac channel [%d/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",177 i, arg->nallchans,178 ch->mhz, ch->maxpower, ch->maxregpower,179 ch->antennamax, ch->phy_mode);180 181 ch++;182 /* TODO: use quarrter/half rate, cfreq12, dfs_cfreq2183 * set_agile, reg_class_idx184 */185 }186 }187 188 ret = ath12k_wmi_send_scan_chan_list_cmd(ar, arg);189 kfree(arg);190 191 return ret;192}193 194static void ath12k_copy_regd(struct ieee80211_regdomain *regd_orig,195 struct ieee80211_regdomain *regd_copy)196{197 u8 i;198 199 /* The caller should have checked error conditions */200 memcpy(regd_copy, regd_orig, sizeof(*regd_orig));201 202 for (i = 0; i < regd_orig->n_reg_rules; i++)203 memcpy(®d_copy->reg_rules[i], ®d_orig->reg_rules[i],204 sizeof(struct ieee80211_reg_rule));205}206 207int ath12k_regd_update(struct ath12k *ar, bool init)208{209 struct ath12k_hw *ah = ath12k_ar_to_ah(ar);210 struct ieee80211_hw *hw = ah->hw;211 struct ieee80211_regdomain *regd, *regd_copy = NULL;212 int ret, regd_len, pdev_id;213 struct ath12k_base *ab;214 int i;215 216 ab = ar->ab;217 218 /* If one of the radios within ah has already updated the regd for219 * the wiphy, then avoid setting regd again220 */221 if (ah->regd_updated)222 return 0;223 224 /* firmware provides reg rules which are similar for 2 GHz and 5 GHz225 * pdev but 6 GHz pdev has superset of all rules including rules for226 * all bands, we prefer 6 GHz pdev's rules to be used for setup of227 * the wiphy regd.228 * If 6 GHz pdev was part of the ath12k_hw, wait for the 6 GHz pdev,229 * else pick the first pdev which calls this function and use its230 * regd to update global hw regd.231 * The regd_updated flag set at the end will not allow any further232 * updates.233 */234 if (ah->use_6ghz_regd && !ar->supports_6ghz)235 return 0;236 237 pdev_id = ar->pdev_idx;238 239 spin_lock_bh(&ab->base_lock);240 241 if (init) {242 /* Apply the regd received during init through243 * WMI_REG_CHAN_LIST_CC event. In case of failure to244 * receive the regd, initialize with a default world245 * regulatory.246 */247 if (ab->default_regd[pdev_id]) {248 regd = ab->default_regd[pdev_id];249 } else {250 ath12k_warn(ab,251 "failed to receive default regd during init\n");252 regd = (struct ieee80211_regdomain *)&ath12k_world_regd;253 }254 } else {255 regd = ab->new_regd[pdev_id];256 }257 258 if (!regd) {259 ret = -EINVAL;260 spin_unlock_bh(&ab->base_lock);261 goto err;262 }263 264 regd_len = sizeof(*regd) + (regd->n_reg_rules *265 sizeof(struct ieee80211_reg_rule));266 267 regd_copy = kzalloc(regd_len, GFP_ATOMIC);268 if (regd_copy)269 ath12k_copy_regd(regd, regd_copy);270 271 spin_unlock_bh(&ab->base_lock);272 273 if (!regd_copy) {274 ret = -ENOMEM;275 goto err;276 }277 278 rtnl_lock();279 wiphy_lock(hw->wiphy);280 ret = regulatory_set_wiphy_regd_sync(hw->wiphy, regd_copy);281 wiphy_unlock(hw->wiphy);282 rtnl_unlock();283 284 kfree(regd_copy);285 286 if (ret)287 goto err;288 289 if (ah->state != ATH12K_HW_STATE_ON)290 goto skip;291 292 ah->regd_updated = true;293 /* Apply the new regd to all the radios, this is expected to be received only once294 * since we check for ah->regd_updated and allow here only once.295 */296 for_each_ar(ah, ar, i) {297 ab = ar->ab;298 ret = ath12k_reg_update_chan_list(ar);299 if (ret)300 goto err;301 }302skip:303 return 0;304err:305 ath12k_warn(ab, "failed to perform regd update : %d\n", ret);306 return ret;307}308 309static enum nl80211_dfs_regions310ath12k_map_fw_dfs_region(enum ath12k_dfs_region dfs_region)311{312 switch (dfs_region) {313 case ATH12K_DFS_REG_FCC:314 case ATH12K_DFS_REG_CN:315 return NL80211_DFS_FCC;316 case ATH12K_DFS_REG_ETSI:317 case ATH12K_DFS_REG_KR:318 return NL80211_DFS_ETSI;319 case ATH12K_DFS_REG_MKK:320 case ATH12K_DFS_REG_MKK_N:321 return NL80211_DFS_JP;322 default:323 return NL80211_DFS_UNSET;324 }325}326 327static u32 ath12k_map_fw_reg_flags(u16 reg_flags)328{329 u32 flags = 0;330 331 if (reg_flags & REGULATORY_CHAN_NO_IR)332 flags = NL80211_RRF_NO_IR;333 334 if (reg_flags & REGULATORY_CHAN_RADAR)335 flags |= NL80211_RRF_DFS;336 337 if (reg_flags & REGULATORY_CHAN_NO_OFDM)338 flags |= NL80211_RRF_NO_OFDM;339 340 if (reg_flags & REGULATORY_CHAN_INDOOR_ONLY)341 flags |= NL80211_RRF_NO_OUTDOOR;342 343 if (reg_flags & REGULATORY_CHAN_NO_HT40)344 flags |= NL80211_RRF_NO_HT40;345 346 if (reg_flags & REGULATORY_CHAN_NO_80MHZ)347 flags |= NL80211_RRF_NO_80MHZ;348 349 if (reg_flags & REGULATORY_CHAN_NO_160MHZ)350 flags |= NL80211_RRF_NO_160MHZ;351 352 return flags;353}354 355static u32 ath12k_map_fw_phy_flags(u32 phy_flags)356{357 u32 flags = 0;358 359 if (phy_flags & ATH12K_REG_PHY_BITMAP_NO11AX)360 flags |= NL80211_RRF_NO_HE;361 362 if (phy_flags & ATH12K_REG_PHY_BITMAP_NO11BE)363 flags |= NL80211_RRF_NO_EHT;364 365 return flags;366}367 368static bool369ath12k_reg_can_intersect(struct ieee80211_reg_rule *rule1,370 struct ieee80211_reg_rule *rule2)371{372 u32 start_freq1, end_freq1;373 u32 start_freq2, end_freq2;374 375 start_freq1 = rule1->freq_range.start_freq_khz;376 start_freq2 = rule2->freq_range.start_freq_khz;377 378 end_freq1 = rule1->freq_range.end_freq_khz;379 end_freq2 = rule2->freq_range.end_freq_khz;380 381 if ((start_freq1 >= start_freq2 &&382 start_freq1 < end_freq2) ||383 (start_freq2 > start_freq1 &&384 start_freq2 < end_freq1))385 return true;386 387 /* TODO: Should we restrict intersection feasibility388 * based on min bandwidth of the intersected region also,389 * say the intersected rule should have a min bandwidth390 * of 20MHz?391 */392 393 return false;394}395 396static void ath12k_reg_intersect_rules(struct ieee80211_reg_rule *rule1,397 struct ieee80211_reg_rule *rule2,398 struct ieee80211_reg_rule *new_rule)399{400 u32 start_freq1, end_freq1;401 u32 start_freq2, end_freq2;402 u32 freq_diff, max_bw;403 404 start_freq1 = rule1->freq_range.start_freq_khz;405 start_freq2 = rule2->freq_range.start_freq_khz;406 407 end_freq1 = rule1->freq_range.end_freq_khz;408 end_freq2 = rule2->freq_range.end_freq_khz;409 410 new_rule->freq_range.start_freq_khz = max_t(u32, start_freq1,411 start_freq2);412 new_rule->freq_range.end_freq_khz = min_t(u32, end_freq1, end_freq2);413 414 freq_diff = new_rule->freq_range.end_freq_khz -415 new_rule->freq_range.start_freq_khz;416 max_bw = min_t(u32, rule1->freq_range.max_bandwidth_khz,417 rule2->freq_range.max_bandwidth_khz);418 new_rule->freq_range.max_bandwidth_khz = min_t(u32, max_bw, freq_diff);419 420 new_rule->power_rule.max_antenna_gain =421 min_t(u32, rule1->power_rule.max_antenna_gain,422 rule2->power_rule.max_antenna_gain);423 424 new_rule->power_rule.max_eirp = min_t(u32, rule1->power_rule.max_eirp,425 rule2->power_rule.max_eirp);426 427 /* Use the flags of both the rules */428 new_rule->flags = rule1->flags | rule2->flags;429 430 /* To be safe, lts use the max cac timeout of both rules */431 new_rule->dfs_cac_ms = max_t(u32, rule1->dfs_cac_ms,432 rule2->dfs_cac_ms);433}434 435static struct ieee80211_regdomain *436ath12k_regd_intersect(struct ieee80211_regdomain *default_regd,437 struct ieee80211_regdomain *curr_regd)438{439 u8 num_old_regd_rules, num_curr_regd_rules, num_new_regd_rules;440 struct ieee80211_reg_rule *old_rule, *curr_rule, *new_rule;441 struct ieee80211_regdomain *new_regd = NULL;442 u8 i, j, k;443 444 num_old_regd_rules = default_regd->n_reg_rules;445 num_curr_regd_rules = curr_regd->n_reg_rules;446 num_new_regd_rules = 0;447 448 /* Find the number of intersecting rules to allocate new regd memory */449 for (i = 0; i < num_old_regd_rules; i++) {450 old_rule = default_regd->reg_rules + i;451 for (j = 0; j < num_curr_regd_rules; j++) {452 curr_rule = curr_regd->reg_rules + j;453 454 if (ath12k_reg_can_intersect(old_rule, curr_rule))455 num_new_regd_rules++;456 }457 }458 459 if (!num_new_regd_rules)460 return NULL;461 462 new_regd = kzalloc(sizeof(*new_regd) + (num_new_regd_rules *463 sizeof(struct ieee80211_reg_rule)),464 GFP_ATOMIC);465 466 if (!new_regd)467 return NULL;468 469 /* We set the new country and dfs region directly and only trim470 * the freq, power, antenna gain by intersecting with the471 * default regdomain. Also MAX of the dfs cac timeout is selected.472 */473 new_regd->n_reg_rules = num_new_regd_rules;474 memcpy(new_regd->alpha2, curr_regd->alpha2, sizeof(new_regd->alpha2));475 new_regd->dfs_region = curr_regd->dfs_region;476 new_rule = new_regd->reg_rules;477 478 for (i = 0, k = 0; i < num_old_regd_rules; i++) {479 old_rule = default_regd->reg_rules + i;480 for (j = 0; j < num_curr_regd_rules; j++) {481 curr_rule = curr_regd->reg_rules + j;482 483 if (ath12k_reg_can_intersect(old_rule, curr_rule))484 ath12k_reg_intersect_rules(old_rule, curr_rule,485 (new_rule + k++));486 }487 }488 return new_regd;489}490 491static const char *492ath12k_reg_get_regdom_str(enum nl80211_dfs_regions dfs_region)493{494 switch (dfs_region) {495 case NL80211_DFS_FCC:496 return "FCC";497 case NL80211_DFS_ETSI:498 return "ETSI";499 case NL80211_DFS_JP:500 return "JP";501 default:502 return "UNSET";503 }504}505 506static u16507ath12k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw)508{509 u16 bw;510 511 bw = end_freq - start_freq;512 bw = min_t(u16, bw, max_bw);513 514 if (bw >= 80 && bw < 160)515 bw = 80;516 else if (bw >= 40 && bw < 80)517 bw = 40;518 else if (bw < 40)519 bw = 20;520 521 return bw;522}523 524static void525ath12k_reg_update_rule(struct ieee80211_reg_rule *reg_rule, u32 start_freq,526 u32 end_freq, u32 bw, u32 ant_gain, u32 reg_pwr,527 u32 reg_flags)528{529 reg_rule->freq_range.start_freq_khz = MHZ_TO_KHZ(start_freq);530 reg_rule->freq_range.end_freq_khz = MHZ_TO_KHZ(end_freq);531 reg_rule->freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw);532 reg_rule->power_rule.max_antenna_gain = DBI_TO_MBI(ant_gain);533 reg_rule->power_rule.max_eirp = DBM_TO_MBM(reg_pwr);534 reg_rule->flags = reg_flags;535}536 537static void538ath12k_reg_update_weather_radar_band(struct ath12k_base *ab,539 struct ieee80211_regdomain *regd,540 struct ath12k_reg_rule *reg_rule,541 u8 *rule_idx, u32 flags, u16 max_bw)542{543 u32 end_freq;544 u16 bw;545 u8 i;546 547 i = *rule_idx;548 549 bw = ath12k_reg_adjust_bw(reg_rule->start_freq,550 ETSI_WEATHER_RADAR_BAND_LOW, max_bw);551 552 ath12k_reg_update_rule(regd->reg_rules + i, reg_rule->start_freq,553 ETSI_WEATHER_RADAR_BAND_LOW, bw,554 reg_rule->ant_gain, reg_rule->reg_power,555 flags);556 557 ath12k_dbg(ab, ATH12K_DBG_REG,558 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",559 i + 1, reg_rule->start_freq, ETSI_WEATHER_RADAR_BAND_LOW,560 bw, reg_rule->ant_gain, reg_rule->reg_power,561 regd->reg_rules[i].dfs_cac_ms,562 flags);563 564 if (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_HIGH)565 end_freq = ETSI_WEATHER_RADAR_BAND_HIGH;566 else567 end_freq = reg_rule->end_freq;568 569 bw = ath12k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_LOW, end_freq,570 max_bw);571 572 i++;573 574 ath12k_reg_update_rule(regd->reg_rules + i,575 ETSI_WEATHER_RADAR_BAND_LOW, end_freq, bw,576 reg_rule->ant_gain, reg_rule->reg_power,577 flags);578 579 regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT;580 581 ath12k_dbg(ab, ATH12K_DBG_REG,582 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",583 i + 1, ETSI_WEATHER_RADAR_BAND_LOW, end_freq,584 bw, reg_rule->ant_gain, reg_rule->reg_power,585 regd->reg_rules[i].dfs_cac_ms,586 flags);587 588 if (end_freq == reg_rule->end_freq) {589 regd->n_reg_rules--;590 *rule_idx = i;591 return;592 }593 594 bw = ath12k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_HIGH,595 reg_rule->end_freq, max_bw);596 597 i++;598 599 ath12k_reg_update_rule(regd->reg_rules + i, ETSI_WEATHER_RADAR_BAND_HIGH,600 reg_rule->end_freq, bw,601 reg_rule->ant_gain, reg_rule->reg_power,602 flags);603 604 ath12k_dbg(ab, ATH12K_DBG_REG,605 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",606 i + 1, ETSI_WEATHER_RADAR_BAND_HIGH, reg_rule->end_freq,607 bw, reg_rule->ant_gain, reg_rule->reg_power,608 regd->reg_rules[i].dfs_cac_ms,609 flags);610 611 *rule_idx = i;612}613 614struct ieee80211_regdomain *615ath12k_reg_build_regd(struct ath12k_base *ab,616 struct ath12k_reg_info *reg_info, bool intersect)617{618 struct ieee80211_regdomain *tmp_regd, *default_regd, *new_regd = NULL;619 struct ath12k_reg_rule *reg_rule;620 u8 i = 0, j = 0, k = 0;621 u8 num_rules;622 u16 max_bw;623 u32 flags;624 char alpha2[3];625 626 num_rules = reg_info->num_5g_reg_rules + reg_info->num_2g_reg_rules;627 628 /* FIXME: Currently taking reg rules for 6G only from Indoor AP mode list.629 * This can be updated to choose the combination dynamically based on AP630 * type and client type, after complete 6G regulatory support is added.631 */632 if (reg_info->is_ext_reg_event)633 num_rules += reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP];634 635 if (!num_rules)636 goto ret;637 638 /* Add max additional rules to accommodate weather radar band */639 if (reg_info->dfs_region == ATH12K_DFS_REG_ETSI)640 num_rules += 2;641 642 tmp_regd = kzalloc(sizeof(*tmp_regd) +643 (num_rules * sizeof(struct ieee80211_reg_rule)),644 GFP_ATOMIC);645 if (!tmp_regd)646 goto ret;647 648 memcpy(tmp_regd->alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1);649 memcpy(alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1);650 alpha2[2] = '\0';651 tmp_regd->dfs_region = ath12k_map_fw_dfs_region(reg_info->dfs_region);652 653 ath12k_dbg(ab, ATH12K_DBG_REG,654 "\r\nCountry %s, CFG Regdomain %s FW Regdomain %d, num_reg_rules %d\n",655 alpha2, ath12k_reg_get_regdom_str(tmp_regd->dfs_region),656 reg_info->dfs_region, num_rules);657 /* Update reg_rules[] below. Firmware is expected to658 * send these rules in order(2G rules first and then 5G)659 */660 for (; i < num_rules; i++) {661 if (reg_info->num_2g_reg_rules &&662 (i < reg_info->num_2g_reg_rules)) {663 reg_rule = reg_info->reg_rules_2g_ptr + i;664 max_bw = min_t(u16, reg_rule->max_bw,665 reg_info->max_bw_2g);666 flags = 0;667 } else if (reg_info->num_5g_reg_rules &&668 (j < reg_info->num_5g_reg_rules)) {669 reg_rule = reg_info->reg_rules_5g_ptr + j++;670 max_bw = min_t(u16, reg_rule->max_bw,671 reg_info->max_bw_5g);672 673 /* FW doesn't pass NL80211_RRF_AUTO_BW flag for674 * BW Auto correction, we can enable this by default675 * for all 5G rules here. The regulatory core performs676 * BW correction if required and applies flags as677 * per other BW rule flags we pass from here678 */679 flags = NL80211_RRF_AUTO_BW;680 } else if (reg_info->is_ext_reg_event &&681 reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP] &&682 (k < reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP])) {683 reg_rule = reg_info->reg_rules_6g_ap_ptr[WMI_REG_INDOOR_AP] + k++;684 max_bw = min_t(u16, reg_rule->max_bw,685 reg_info->max_bw_6g_ap[WMI_REG_INDOOR_AP]);686 flags = NL80211_RRF_AUTO_BW;687 } else {688 break;689 }690 691 flags |= ath12k_map_fw_reg_flags(reg_rule->flags);692 flags |= ath12k_map_fw_phy_flags(reg_info->phybitmap);693 694 ath12k_reg_update_rule(tmp_regd->reg_rules + i,695 reg_rule->start_freq,696 reg_rule->end_freq, max_bw,697 reg_rule->ant_gain, reg_rule->reg_power,698 flags);699 700 /* Update dfs cac timeout if the dfs domain is ETSI and the701 * new rule covers weather radar band.702 * Default value of '0' corresponds to 60s timeout, so no703 * need to update that for other rules.704 */705 if (flags & NL80211_RRF_DFS &&706 reg_info->dfs_region == ATH12K_DFS_REG_ETSI &&707 (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_LOW &&708 reg_rule->start_freq < ETSI_WEATHER_RADAR_BAND_HIGH)){709 ath12k_reg_update_weather_radar_band(ab, tmp_regd,710 reg_rule, &i,711 flags, max_bw);712 continue;713 }714 715 if (reg_info->is_ext_reg_event) {716 ath12k_dbg(ab, ATH12K_DBG_REG, "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d) (%d, %d)\n",717 i + 1, reg_rule->start_freq, reg_rule->end_freq,718 max_bw, reg_rule->ant_gain, reg_rule->reg_power,719 tmp_regd->reg_rules[i].dfs_cac_ms,720 flags, reg_rule->psd_flag, reg_rule->psd_eirp);721 } else {722 ath12k_dbg(ab, ATH12K_DBG_REG,723 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",724 i + 1, reg_rule->start_freq, reg_rule->end_freq,725 max_bw, reg_rule->ant_gain, reg_rule->reg_power,726 tmp_regd->reg_rules[i].dfs_cac_ms,727 flags);728 }729 }730 731 tmp_regd->n_reg_rules = i;732 733 if (intersect) {734 default_regd = ab->default_regd[reg_info->phy_id];735 736 /* Get a new regd by intersecting the received regd with737 * our default regd.738 */739 new_regd = ath12k_regd_intersect(default_regd, tmp_regd);740 kfree(tmp_regd);741 if (!new_regd) {742 ath12k_warn(ab, "Unable to create intersected regdomain\n");743 goto ret;744 }745 } else {746 new_regd = tmp_regd;747 }748 749ret:750 return new_regd;751}752 753void ath12k_regd_update_work(struct work_struct *work)754{755 struct ath12k *ar = container_of(work, struct ath12k,756 regd_update_work);757 int ret;758 759 ret = ath12k_regd_update(ar, false);760 if (ret) {761 /* Firmware has already moved to the new regd. We need762 * to maintain channel consistency across FW, Host driver763 * and userspace. Hence as a fallback mechanism we can set764 * the prev or default country code to the firmware.765 */766 /* TODO: Implement Fallback Mechanism */767 }768}769 770void ath12k_reg_init(struct ieee80211_hw *hw)771{772 hw->wiphy->regulatory_flags = REGULATORY_WIPHY_SELF_MANAGED;773 hw->wiphy->reg_notifier = ath12k_reg_notifier;774}775 776void ath12k_reg_free(struct ath12k_base *ab)777{778 int i;779 780 for (i = 0; i < ab->hw_params->max_radios; i++) {781 kfree(ab->default_regd[i]);782 kfree(ab->new_regd[i]);783 }784}785