1// SPDX-License-Identifier: BSD-3-Clause-Clear 2/* 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 5590 18#define ETSI_WEATHER_RADAR_BAND_HIGH 5650 19#define ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT 600000 20 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 previous 37 * user request is received before we update the regd received 38 * from firmware. 39 */ 40 if (!regd) 41 return true; 42 43 return memcmp(regd->alpha2, alpha2, 2) != 0; 44} 45 46static void 47ath12k_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); 53 int ret; 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 user 59 * hints to be handled later. 60 * Hints from other sources like Core, Beacons are not expected for 61 * self managed wiphy's 62 */ 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 for 81 * the WMI_REG_CHAN_LIST_CC EVENT for updating the 82 * reg info 83 */ 84 arg.flags = ALPHA_IS_SET; 85 memcpy(&arg.cc_info.alpha2, request->alpha2, 2); 86 arg.cc_info.alpha2[2] = 0; 87 88 ret = ath12k_wmi_send_init_country_cmd(ar, &arg); 89 if (ret) 90 ath12k_warn(ar->ab, 91 "INIT Country code set to fw failed : %d\n", ret); 92} 93 94int ath12k_reg_update_chan_list(struct ath12k *ar) 95{ 96 struct ieee80211_supported_band **bands; 97 struct ath12k_wmi_scan_chan_list_arg *arg; 98 struct ieee80211_channel *channel; 99 struct ieee80211_hw *hw = ath12k_ar_to_hw(ar); 100 struct ath12k_wmi_channel_arg *ch; 101 enum nl80211_band band; 102 int num_channels = 0; 103 int i, ret; 104 105 bands = hw->wiphy->bands; 106 for (band = 0; band < NUM_NL80211_BANDS; band++) { 107 if (!(ar->mac.sbands[band].channels && bands[band])) 108 continue; 109 110 for (i = 0; i < bands[band]->n_channels; i++) { 111 if (bands[band]->channels[i].flags & 112 IEEE80211_CHAN_DISABLED) 113 continue; 114 115 num_channels++; 116 } 117 } 118 119 if (WARN_ON(!num_channels)) 120 return -EINVAL; 121 122 arg = kzalloc(struct_size(arg, channel, num_channels), GFP_KERNEL); 123 124 if (!arg) 125 return -ENOMEM; 126 127 arg->pdev_id = ar->pdev->pdev_id; 128 arg->nallchans = num_channels; 129 130 ch = arg->channel; 131 132 for (band = 0; band < NUM_NL80211_BANDS; band++) { 133 if (!(ar->mac.sbands[band].channels && bands[band])) 134 continue; 135 136 for (i = 0; i < bands[band]->n_channels; i++) { 137 channel = &bands[band]->channels[i]; 138 139 if (channel->flags & IEEE80211_CHAN_DISABLED) 140 continue; 141 142 /* TODO: Set to true/false based on some condition? */ 143 ch->allow_ht = true; 144 ch->allow_vht = true; 145 ch->allow_he = true; 146 147 ch->dfs_set = 148 !!(channel->flags & IEEE80211_CHAN_RADAR); 149 ch->is_chan_passive = !!(channel->flags & 150 IEEE80211_CHAN_NO_IR); 151 ch->is_chan_passive |= ch->dfs_set; 152 ch->mhz = channel->center_freq; 153 ch->cfreq1 = channel->center_freq; 154 ch->minpower = 0; 155 ch->maxpower = channel->max_power * 2; 156 ch->maxregpower = channel->max_reg_power * 2; 157 ch->antennamax = channel->max_antenna_gain * 2; 158 159 /* TODO: Use appropriate phymodes */ 160 if (channel->band == NL80211_BAND_2GHZ) 161 ch->phy_mode = MODE_11G; 162 else 163 ch->phy_mode = MODE_11A; 164 165 if (channel->band == NL80211_BAND_6GHZ && 166 cfg80211_channel_is_psc(channel)) 167 ch->psc_channel = true; 168 169 ath12k_dbg(ar->ab, ATH12K_DBG_WMI, 170 "mac channel [%d/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n", 171 i, arg->nallchans, 172 ch->mhz, ch->maxpower, ch->maxregpower, 173 ch->antennamax, ch->phy_mode); 174 175 ch++; 176 /* TODO: use quarrter/half rate, cfreq12, dfs_cfreq2 177 * set_agile, reg_class_idx 178 */ 179 } 180 } 181 182 ret = ath12k_wmi_send_scan_chan_list_cmd(ar, arg); 183 kfree(arg); 184 185 return ret; 186} 187 188static void ath12k_copy_regd(struct ieee80211_regdomain *regd_orig, 189 struct ieee80211_regdomain *regd_copy) 190{ 191 u8 i; 192 193 /* The caller should have checked error conditions */ 194 memcpy(regd_copy, regd_orig, sizeof(*regd_orig)); 195 196 for (i = 0; i < regd_orig->n_reg_rules; i++) 197 memcpy(®d_copy->reg_rules[i], ®d_orig->reg_rules[i], 198 sizeof(struct ieee80211_reg_rule)); 199} 200 201int ath12k_regd_update(struct ath12k *ar, bool init) 202{ 203 struct ieee80211_hw *hw = ath12k_ar_to_hw(ar); 204 struct ieee80211_regdomain *regd, *regd_copy = NULL; 205 int ret, regd_len, pdev_id; 206 struct ath12k_base *ab; 207 208 ab = ar->ab; 209 pdev_id = ar->pdev_idx; 210 211 spin_lock_bh(&ab->base_lock); 212 213 if (init) { 214 /* Apply the regd received during init through 215 * WMI_REG_CHAN_LIST_CC event. In case of failure to 216 * receive the regd, initialize with a default world 217 * regulatory. 218 */ 219 if (ab->default_regd[pdev_id]) { 220 regd = ab->default_regd[pdev_id]; 221 } else { 222 ath12k_warn(ab, 223 "failed to receive default regd during init\n"); 224 regd = (struct ieee80211_regdomain *)&ath12k_world_regd; 225 } 226 } else { 227 regd = ab->new_regd[pdev_id]; 228 } 229 230 if (!regd) { 231 ret = -EINVAL; 232 spin_unlock_bh(&ab->base_lock); 233 goto err; 234 } 235 236 regd_len = sizeof(*regd) + (regd->n_reg_rules * 237 sizeof(struct ieee80211_reg_rule)); 238 239 regd_copy = kzalloc(regd_len, GFP_ATOMIC); 240 if (regd_copy) 241 ath12k_copy_regd(regd, regd_copy); 242 243 spin_unlock_bh(&ab->base_lock); 244 245 if (!regd_copy) { 246 ret = -ENOMEM; 247 goto err; 248 } 249 250 rtnl_lock(); 251 wiphy_lock(hw->wiphy); 252 ret = regulatory_set_wiphy_regd_sync(hw->wiphy, regd_copy); 253 wiphy_unlock(hw->wiphy); 254 rtnl_unlock(); 255 256 kfree(regd_copy); 257 258 if (ret) 259 goto err; 260 261 if (ar->state == ATH12K_STATE_ON) { 262 ret = ath12k_reg_update_chan_list(ar); 263 if (ret) 264 goto err; 265 } 266 267 return 0; 268err: 269 ath12k_warn(ab, "failed to perform regd update : %d\n", ret); 270 return ret; 271} 272 273static enum nl80211_dfs_regions 274ath12k_map_fw_dfs_region(enum ath12k_dfs_region dfs_region) 275{ 276 switch (dfs_region) { 277 case ATH12K_DFS_REG_FCC: 278 case ATH12K_DFS_REG_CN: 279 return NL80211_DFS_FCC; 280 case ATH12K_DFS_REG_ETSI: 281 case ATH12K_DFS_REG_KR: 282 return NL80211_DFS_ETSI; 283 case ATH12K_DFS_REG_MKK: 284 case ATH12K_DFS_REG_MKK_N: 285 return NL80211_DFS_JP; 286 default: 287 return NL80211_DFS_UNSET; 288 } 289} 290 291static u32 ath12k_map_fw_reg_flags(u16 reg_flags) 292{ 293 u32 flags = 0; 294 295 if (reg_flags & REGULATORY_CHAN_NO_IR) 296 flags = NL80211_RRF_NO_IR; 297 298 if (reg_flags & REGULATORY_CHAN_RADAR) 299 flags |= NL80211_RRF_DFS; 300 301 if (reg_flags & REGULATORY_CHAN_NO_OFDM) 302 flags |= NL80211_RRF_NO_OFDM; 303 304 if (reg_flags & REGULATORY_CHAN_INDOOR_ONLY) 305 flags |= NL80211_RRF_NO_OUTDOOR; 306 307 if (reg_flags & REGULATORY_CHAN_NO_HT40) 308 flags |= NL80211_RRF_NO_HT40; 309 310 if (reg_flags & REGULATORY_CHAN_NO_80MHZ) 311 flags |= NL80211_RRF_NO_80MHZ; 312 313 if (reg_flags & REGULATORY_CHAN_NO_160MHZ) 314 flags |= NL80211_RRF_NO_160MHZ; 315 316 return flags; 317} 318 319static u32 ath12k_map_fw_phy_flags(u32 phy_flags) 320{ 321 u32 flags = 0; 322 323 if (phy_flags & ATH12K_REG_PHY_BITMAP_NO11AX) 324 flags |= NL80211_RRF_NO_HE; 325 326 if (phy_flags & ATH12K_REG_PHY_BITMAP_NO11BE) 327 flags |= NL80211_RRF_NO_EHT; 328 329 return flags; 330} 331 332static bool 333ath12k_reg_can_intersect(struct ieee80211_reg_rule *rule1, 334 struct ieee80211_reg_rule *rule2) 335{ 336 u32 start_freq1, end_freq1; 337 u32 start_freq2, end_freq2; 338 339 start_freq1 = rule1->freq_range.start_freq_khz; 340 start_freq2 = rule2->freq_range.start_freq_khz; 341 342 end_freq1 = rule1->freq_range.end_freq_khz; 343 end_freq2 = rule2->freq_range.end_freq_khz; 344 345 if ((start_freq1 >= start_freq2 && 346 start_freq1 < end_freq2) || 347 (start_freq2 > start_freq1 && 348 start_freq2 < end_freq1)) 349 return true; 350 351 /* TODO: Should we restrict intersection feasibility 352 * based on min bandwidth of the intersected region also, 353 * say the intersected rule should have a min bandwidth 354 * of 20MHz? 355 */ 356 357 return false; 358} 359 360static void ath12k_reg_intersect_rules(struct ieee80211_reg_rule *rule1, 361 struct ieee80211_reg_rule *rule2, 362 struct ieee80211_reg_rule *new_rule) 363{ 364 u32 start_freq1, end_freq1; 365 u32 start_freq2, end_freq2; 366 u32 freq_diff, max_bw; 367 368 start_freq1 = rule1->freq_range.start_freq_khz; 369 start_freq2 = rule2->freq_range.start_freq_khz; 370 371 end_freq1 = rule1->freq_range.end_freq_khz; 372 end_freq2 = rule2->freq_range.end_freq_khz; 373 374 new_rule->freq_range.start_freq_khz = max_t(u32, start_freq1, 375 start_freq2); 376 new_rule->freq_range.end_freq_khz = min_t(u32, end_freq1, end_freq2); 377 378 freq_diff = new_rule->freq_range.end_freq_khz - 379 new_rule->freq_range.start_freq_khz; 380 max_bw = min_t(u32, rule1->freq_range.max_bandwidth_khz, 381 rule2->freq_range.max_bandwidth_khz); 382 new_rule->freq_range.max_bandwidth_khz = min_t(u32, max_bw, freq_diff); 383 384 new_rule->power_rule.max_antenna_gain = 385 min_t(u32, rule1->power_rule.max_antenna_gain, 386 rule2->power_rule.max_antenna_gain); 387 388 new_rule->power_rule.max_eirp = min_t(u32, rule1->power_rule.max_eirp, 389 rule2->power_rule.max_eirp); 390 391 /* Use the flags of both the rules */ 392 new_rule->flags = rule1->flags | rule2->flags; 393 394 /* To be safe, lts use the max cac timeout of both rules */ 395 new_rule->dfs_cac_ms = max_t(u32, rule1->dfs_cac_ms, 396 rule2->dfs_cac_ms); 397} 398 399static struct ieee80211_regdomain * 400ath12k_regd_intersect(struct ieee80211_regdomain *default_regd, 401 struct ieee80211_regdomain *curr_regd) 402{ 403 u8 num_old_regd_rules, num_curr_regd_rules, num_new_regd_rules; 404 struct ieee80211_reg_rule *old_rule, *curr_rule, *new_rule; 405 struct ieee80211_regdomain *new_regd = NULL; 406 u8 i, j, k; 407 408 num_old_regd_rules = default_regd->n_reg_rules; 409 num_curr_regd_rules = curr_regd->n_reg_rules; 410 num_new_regd_rules = 0; 411 412 /* Find the number of intersecting rules to allocate new regd memory */ 413 for (i = 0; i < num_old_regd_rules; i++) { 414 old_rule = default_regd->reg_rules + i; 415 for (j = 0; j < num_curr_regd_rules; j++) { 416 curr_rule = curr_regd->reg_rules + j; 417 418 if (ath12k_reg_can_intersect(old_rule, curr_rule)) 419 num_new_regd_rules++; 420 } 421 } 422 423 if (!num_new_regd_rules) 424 return NULL; 425 426 new_regd = kzalloc(sizeof(*new_regd) + (num_new_regd_rules * 427 sizeof(struct ieee80211_reg_rule)), 428 GFP_ATOMIC); 429 430 if (!new_regd) 431 return NULL; 432 433 /* We set the new country and dfs region directly and only trim 434 * the freq, power, antenna gain by intersecting with the 435 * default regdomain. Also MAX of the dfs cac timeout is selected. 436 */ 437 new_regd->n_reg_rules = num_new_regd_rules; 438 memcpy(new_regd->alpha2, curr_regd->alpha2, sizeof(new_regd->alpha2)); 439 new_regd->dfs_region = curr_regd->dfs_region; 440 new_rule = new_regd->reg_rules; 441 442 for (i = 0, k = 0; i < num_old_regd_rules; i++) { 443 old_rule = default_regd->reg_rules + i; 444 for (j = 0; j < num_curr_regd_rules; j++) { 445 curr_rule = curr_regd->reg_rules + j; 446 447 if (ath12k_reg_can_intersect(old_rule, curr_rule)) 448 ath12k_reg_intersect_rules(old_rule, curr_rule, 449 (new_rule + k++)); 450 } 451 } 452 return new_regd; 453} 454 455static const char * 456ath12k_reg_get_regdom_str(enum nl80211_dfs_regions dfs_region) 457{ 458 switch (dfs_region) { 459 case NL80211_DFS_FCC: 460 return "FCC"; 461 case NL80211_DFS_ETSI: 462 return "ETSI"; 463 case NL80211_DFS_JP: 464 return "JP"; 465 default: 466 return "UNSET"; 467 } 468} 469 470static u16 471ath12k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw) 472{ 473 u16 bw; 474 475 bw = end_freq - start_freq; 476 bw = min_t(u16, bw, max_bw); 477 478 if (bw >= 80 && bw < 160) 479 bw = 80; 480 else if (bw >= 40 && bw < 80) 481 bw = 40; 482 else if (bw < 40) 483 bw = 20; 484 485 return bw; 486} 487 488static void 489ath12k_reg_update_rule(struct ieee80211_reg_rule *reg_rule, u32 start_freq, 490 u32 end_freq, u32 bw, u32 ant_gain, u32 reg_pwr, 491 u32 reg_flags) 492{ 493 reg_rule->freq_range.start_freq_khz = MHZ_TO_KHZ(start_freq); 494 reg_rule->freq_range.end_freq_khz = MHZ_TO_KHZ(end_freq); 495 reg_rule->freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw); 496 reg_rule->power_rule.max_antenna_gain = DBI_TO_MBI(ant_gain); 497 reg_rule->power_rule.max_eirp = DBM_TO_MBM(reg_pwr); 498 reg_rule->flags = reg_flags; 499} 500 501static void 502ath12k_reg_update_weather_radar_band(struct ath12k_base *ab, 503 struct ieee80211_regdomain *regd, 504 struct ath12k_reg_rule *reg_rule, 505 u8 *rule_idx, u32 flags, u16 max_bw) 506{ 507 u32 end_freq; 508 u16 bw; 509 u8 i; 510 511 i = *rule_idx; 512 513 bw = ath12k_reg_adjust_bw(reg_rule->start_freq, 514 ETSI_WEATHER_RADAR_BAND_LOW, max_bw); 515 516 ath12k_reg_update_rule(regd->reg_rules + i, reg_rule->start_freq, 517 ETSI_WEATHER_RADAR_BAND_LOW, bw, 518 reg_rule->ant_gain, reg_rule->reg_power, 519 flags); 520 521 ath12k_dbg(ab, ATH12K_DBG_REG, 522 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 523 i + 1, reg_rule->start_freq, ETSI_WEATHER_RADAR_BAND_LOW, 524 bw, reg_rule->ant_gain, reg_rule->reg_power, 525 regd->reg_rules[i].dfs_cac_ms, 526 flags); 527 528 if (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_HIGH) 529 end_freq = ETSI_WEATHER_RADAR_BAND_HIGH; 530 else 531 end_freq = reg_rule->end_freq; 532 533 bw = ath12k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_LOW, end_freq, 534 max_bw); 535 536 i++; 537 538 ath12k_reg_update_rule(regd->reg_rules + i, 539 ETSI_WEATHER_RADAR_BAND_LOW, end_freq, bw, 540 reg_rule->ant_gain, reg_rule->reg_power, 541 flags); 542 543 regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT; 544 545 ath12k_dbg(ab, ATH12K_DBG_REG, 546 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 547 i + 1, ETSI_WEATHER_RADAR_BAND_LOW, end_freq, 548 bw, reg_rule->ant_gain, reg_rule->reg_power, 549 regd->reg_rules[i].dfs_cac_ms, 550 flags); 551 552 if (end_freq == reg_rule->end_freq) { 553 regd->n_reg_rules--; 554 *rule_idx = i; 555 return; 556 } 557 558 bw = ath12k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_HIGH, 559 reg_rule->end_freq, max_bw); 560 561 i++; 562 563 ath12k_reg_update_rule(regd->reg_rules + i, ETSI_WEATHER_RADAR_BAND_HIGH, 564 reg_rule->end_freq, bw, 565 reg_rule->ant_gain, reg_rule->reg_power, 566 flags); 567 568 ath12k_dbg(ab, ATH12K_DBG_REG, 569 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 570 i + 1, ETSI_WEATHER_RADAR_BAND_HIGH, reg_rule->end_freq, 571 bw, reg_rule->ant_gain, reg_rule->reg_power, 572 regd->reg_rules[i].dfs_cac_ms, 573 flags); 574 575 *rule_idx = i; 576} 577 578struct ieee80211_regdomain * 579ath12k_reg_build_regd(struct ath12k_base *ab, 580 struct ath12k_reg_info *reg_info, bool intersect) 581{ 582 struct ieee80211_regdomain *tmp_regd, *default_regd, *new_regd = NULL; 583 struct ath12k_reg_rule *reg_rule; 584 u8 i = 0, j = 0, k = 0; 585 u8 num_rules; 586 u16 max_bw; 587 u32 flags; 588 char alpha2[3]; 589 590 num_rules = reg_info->num_5g_reg_rules + reg_info->num_2g_reg_rules; 591 592 /* FIXME: Currently taking reg rules for 6G only from Indoor AP mode list. 593 * This can be updated to choose the combination dynamically based on AP 594 * type and client type, after complete 6G regulatory support is added. 595 */ 596 if (reg_info->is_ext_reg_event) 597 num_rules += reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP]; 598 599 if (!num_rules) 600 goto ret; 601 602 /* Add max additional rules to accommodate weather radar band */ 603 if (reg_info->dfs_region == ATH12K_DFS_REG_ETSI) 604 num_rules += 2; 605 606 tmp_regd = kzalloc(sizeof(*tmp_regd) + 607 (num_rules * sizeof(struct ieee80211_reg_rule)), 608 GFP_ATOMIC); 609 if (!tmp_regd) 610 goto ret; 611 612 memcpy(tmp_regd->alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); 613 memcpy(alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); 614 alpha2[2] = '\0'; 615 tmp_regd->dfs_region = ath12k_map_fw_dfs_region(reg_info->dfs_region); 616 617 ath12k_dbg(ab, ATH12K_DBG_REG, 618 "\r\nCountry %s, CFG Regdomain %s FW Regdomain %d, num_reg_rules %d\n", 619 alpha2, ath12k_reg_get_regdom_str(tmp_regd->dfs_region), 620 reg_info->dfs_region, num_rules); 621 /* Update reg_rules[] below. Firmware is expected to 622 * send these rules in order(2G rules first and then 5G) 623 */ 624 for (; i < num_rules; i++) { 625 if (reg_info->num_2g_reg_rules && 626 (i < reg_info->num_2g_reg_rules)) { 627 reg_rule = reg_info->reg_rules_2g_ptr + i; 628 max_bw = min_t(u16, reg_rule->max_bw, 629 reg_info->max_bw_2g); 630 flags = 0; 631 } else if (reg_info->num_5g_reg_rules && 632 (j < reg_info->num_5g_reg_rules)) { 633 reg_rule = reg_info->reg_rules_5g_ptr + j++; 634 max_bw = min_t(u16, reg_rule->max_bw, 635 reg_info->max_bw_5g); 636 637 /* FW doesn't pass NL80211_RRF_AUTO_BW flag for 638 * BW Auto correction, we can enable this by default 639 * for all 5G rules here. The regulatory core performs 640 * BW correction if required and applies flags as 641 * per other BW rule flags we pass from here 642 */ 643 flags = NL80211_RRF_AUTO_BW; 644 } else if (reg_info->is_ext_reg_event && 645 reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP] && 646 (k < reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP])) { 647 reg_rule = reg_info->reg_rules_6g_ap_ptr[WMI_REG_INDOOR_AP] + k++; 648 max_bw = min_t(u16, reg_rule->max_bw, 649 reg_info->max_bw_6g_ap[WMI_REG_INDOOR_AP]); 650 flags = NL80211_RRF_AUTO_BW; 651 } else { 652 break; 653 } 654 655 flags |= ath12k_map_fw_reg_flags(reg_rule->flags); 656 flags |= ath12k_map_fw_phy_flags(reg_info->phybitmap); 657 658 ath12k_reg_update_rule(tmp_regd->reg_rules + i, 659 reg_rule->start_freq, 660 reg_rule->end_freq, max_bw, 661 reg_rule->ant_gain, reg_rule->reg_power, 662 flags); 663 664 /* Update dfs cac timeout if the dfs domain is ETSI and the 665 * new rule covers weather radar band. 666 * Default value of '0' corresponds to 60s timeout, so no 667 * need to update that for other rules. 668 */ 669 if (flags & NL80211_RRF_DFS && 670 reg_info->dfs_region == ATH12K_DFS_REG_ETSI && 671 (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_LOW && 672 reg_rule->start_freq < ETSI_WEATHER_RADAR_BAND_HIGH)){ 673 ath12k_reg_update_weather_radar_band(ab, tmp_regd, 674 reg_rule, &i, 675 flags, max_bw); 676 continue; 677 } 678 679 if (reg_info->is_ext_reg_event) { 680 ath12k_dbg(ab, ATH12K_DBG_REG, "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d) (%d, %d)\n", 681 i + 1, reg_rule->start_freq, reg_rule->end_freq, 682 max_bw, reg_rule->ant_gain, reg_rule->reg_power, 683 tmp_regd->reg_rules[i].dfs_cac_ms, 684 flags, reg_rule->psd_flag, reg_rule->psd_eirp); 685 } else { 686 ath12k_dbg(ab, ATH12K_DBG_REG, 687 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 688 i + 1, reg_rule->start_freq, reg_rule->end_freq, 689 max_bw, reg_rule->ant_gain, reg_rule->reg_power, 690 tmp_regd->reg_rules[i].dfs_cac_ms, 691 flags); 692 } 693 } 694 695 tmp_regd->n_reg_rules = i; 696 697 if (intersect) { 698 default_regd = ab->default_regd[reg_info->phy_id]; 699 700 /* Get a new regd by intersecting the received regd with 701 * our default regd. 702 */ 703 new_regd = ath12k_regd_intersect(default_regd, tmp_regd); 704 kfree(tmp_regd); 705 if (!new_regd) { 706 ath12k_warn(ab, "Unable to create intersected regdomain\n"); 707 goto ret; 708 } 709 } else { 710 new_regd = tmp_regd; 711 } 712 713ret: 714 return new_regd; 715} 716 717void ath12k_regd_update_work(struct work_struct *work) 718{ 719 struct ath12k *ar = container_of(work, struct ath12k, 720 regd_update_work); 721 int ret; 722 723 ret = ath12k_regd_update(ar, false); 724 if (ret) { 725 /* Firmware has already moved to the new regd. We need 726 * to maintain channel consistency across FW, Host driver 727 * and userspace. Hence as a fallback mechanism we can set 728 * the prev or default country code to the firmware. 729 */ 730 /* TODO: Implement Fallback Mechanism */ 731 } 732} 733 734void ath12k_reg_init(struct ieee80211_hw *hw) 735{ 736 hw->wiphy->regulatory_flags = REGULATORY_WIPHY_SELF_MANAGED; 737 hw->wiphy->reg_notifier = ath12k_reg_notifier; 738} 739 740void ath12k_reg_free(struct ath12k_base *ab) 741{ 742 int i; 743 744 for (i = 0; i < ab->hw_params->max_radios; i++) { 745 kfree(ab->default_regd[i]); 746 kfree(ab->new_regd[i]); 747 } 748} 749