1 // SPDX-License-Identifier: BSD-3-Clause-Clear 2 /* 3 * Copyright (c) 2018-2021 The Linux Foundation. All rights reserved. 4 * Copyright (c) 2021-2023 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 21 static 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 31 static bool ath12k_regdom_changes(struct ath12k *ar, char *alpha2) 32 { 33 const struct ieee80211_regdomain *regd; 34 35 regd = rcu_dereference_rtnl(ar->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 46 static void 47 ath12k_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 *ar = hw->priv; 52 int ret; 53 54 ath12k_dbg(ar->ab, ATH12K_DBG_REG, 55 "Regulatory Notification received for %s\n", wiphy_name(wiphy)); 56 57 /* Currently supporting only General User Hints. Cell base user 58 * hints to be handled later. 59 * Hints from other sources like Core, Beacons are not expected for 60 * self managed wiphy's 61 */ 62 if (!(request->initiator == NL80211_REGDOM_SET_BY_USER && 63 request->user_reg_hint_type == NL80211_USER_REG_HINT_USER)) { 64 ath12k_warn(ar->ab, "Unexpected Regulatory event for this wiphy\n"); 65 return; 66 } 67 68 if (!IS_ENABLED(CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS)) { 69 ath12k_dbg(ar->ab, ATH12K_DBG_REG, 70 "Country Setting is not allowed\n"); 71 return; 72 } 73 74 if (!ath12k_regdom_changes(ar, request->alpha2)) { 75 ath12k_dbg(ar->ab, ATH12K_DBG_REG, "Country is already set\n"); 76 return; 77 } 78 79 /* Set the country code to the firmware and wait for 80 * the WMI_REG_CHAN_LIST_CC EVENT for updating the 81 * reg info 82 */ 83 arg.flags = ALPHA_IS_SET; 84 memcpy(&arg.cc_info.alpha2, request->alpha2, 2); 85 arg.cc_info.alpha2[2] = 0; 86 87 ret = ath12k_wmi_send_init_country_cmd(ar, &arg); 88 if (ret) 89 ath12k_warn(ar->ab, 90 "INIT Country code set to fw failed : %d\n", ret); 91 } 92 93 int ath12k_reg_update_chan_list(struct ath12k *ar) 94 { 95 struct ieee80211_supported_band **bands; 96 struct ath12k_wmi_scan_chan_list_arg *arg; 97 struct ieee80211_channel *channel; 98 struct ieee80211_hw *hw = ar->hw; 99 struct ath12k_wmi_channel_arg *ch; 100 enum nl80211_band band; 101 int num_channels = 0; 102 int i, ret; 103 104 bands = hw->wiphy->bands; 105 for (band = 0; band < NUM_NL80211_BANDS; band++) { 106 if (!(ar->mac.sbands[band].channels && bands[band])) 107 continue; 108 109 for (i = 0; i < bands[band]->n_channels; i++) { 110 if (bands[band]->channels[i].flags & 111 IEEE80211_CHAN_DISABLED) 112 continue; 113 114 num_channels++; 115 } 116 } 117 118 if (WARN_ON(!num_channels)) 119 return -EINVAL; 120 121 arg = kzalloc(struct_size(arg, channel, num_channels), GFP_KERNEL); 122 123 if (!arg) 124 return -ENOMEM; 125 126 arg->pdev_id = ar->pdev->pdev_id; 127 arg->nallchans = num_channels; 128 129 ch = arg->channel; 130 131 for (band = 0; band < NUM_NL80211_BANDS; band++) { 132 if (!(ar->mac.sbands[band].channels && bands[band])) 133 continue; 134 135 for (i = 0; i < bands[band]->n_channels; i++) { 136 channel = &bands[band]->channels[i]; 137 138 if (channel->flags & IEEE80211_CHAN_DISABLED) 139 continue; 140 141 /* TODO: Set to true/false based on some condition? */ 142 ch->allow_ht = true; 143 ch->allow_vht = true; 144 ch->allow_he = true; 145 146 ch->dfs_set = 147 !!(channel->flags & IEEE80211_CHAN_RADAR); 148 ch->is_chan_passive = !!(channel->flags & 149 IEEE80211_CHAN_NO_IR); 150 ch->is_chan_passive |= ch->dfs_set; 151 ch->mhz = channel->center_freq; 152 ch->cfreq1 = channel->center_freq; 153 ch->minpower = 0; 154 ch->maxpower = channel->max_power * 2; 155 ch->maxregpower = channel->max_reg_power * 2; 156 ch->antennamax = channel->max_antenna_gain * 2; 157 158 /* TODO: Use appropriate phymodes */ 159 if (channel->band == NL80211_BAND_2GHZ) 160 ch->phy_mode = MODE_11G; 161 else 162 ch->phy_mode = MODE_11A; 163 164 if (channel->band == NL80211_BAND_6GHZ && 165 cfg80211_channel_is_psc(channel)) 166 ch->psc_channel = true; 167 168 ath12k_dbg(ar->ab, ATH12K_DBG_WMI, 169 "mac channel [%d/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n", 170 i, arg->nallchans, 171 ch->mhz, ch->maxpower, ch->maxregpower, 172 ch->antennamax, ch->phy_mode); 173 174 ch++; 175 /* TODO: use quarrter/half rate, cfreq12, dfs_cfreq2 176 * set_agile, reg_class_idx 177 */ 178 } 179 } 180 181 ret = ath12k_wmi_send_scan_chan_list_cmd(ar, arg); 182 kfree(arg); 183 184 return ret; 185 } 186 187 static void ath12k_copy_regd(struct ieee80211_regdomain *regd_orig, 188 struct ieee80211_regdomain *regd_copy) 189 { 190 u8 i; 191 192 /* The caller should have checked error conditions */ 193 memcpy(regd_copy, regd_orig, sizeof(*regd_orig)); 194 195 for (i = 0; i < regd_orig->n_reg_rules; i++) 196 memcpy(®d_copy->reg_rules[i], ®d_orig->reg_rules[i], 197 sizeof(struct ieee80211_reg_rule)); 198 } 199 200 int ath12k_regd_update(struct ath12k *ar, bool init) 201 { 202 struct ieee80211_regdomain *regd, *regd_copy = NULL; 203 int ret, regd_len, pdev_id; 204 struct ath12k_base *ab; 205 206 ab = ar->ab; 207 pdev_id = ar->pdev_idx; 208 209 spin_lock_bh(&ab->base_lock); 210 211 if (init) { 212 /* Apply the regd received during init through 213 * WMI_REG_CHAN_LIST_CC event. In case of failure to 214 * receive the regd, initialize with a default world 215 * regulatory. 216 */ 217 if (ab->default_regd[pdev_id]) { 218 regd = ab->default_regd[pdev_id]; 219 } else { 220 ath12k_warn(ab, 221 "failed to receive default regd during init\n"); 222 regd = (struct ieee80211_regdomain *)&ath12k_world_regd; 223 } 224 } else { 225 regd = ab->new_regd[pdev_id]; 226 } 227 228 if (!regd) { 229 ret = -EINVAL; 230 spin_unlock_bh(&ab->base_lock); 231 goto err; 232 } 233 234 regd_len = sizeof(*regd) + (regd->n_reg_rules * 235 sizeof(struct ieee80211_reg_rule)); 236 237 regd_copy = kzalloc(regd_len, GFP_ATOMIC); 238 if (regd_copy) 239 ath12k_copy_regd(regd, regd_copy); 240 241 spin_unlock_bh(&ab->base_lock); 242 243 if (!regd_copy) { 244 ret = -ENOMEM; 245 goto err; 246 } 247 248 rtnl_lock(); 249 wiphy_lock(ar->hw->wiphy); 250 ret = regulatory_set_wiphy_regd_sync(ar->hw->wiphy, regd_copy); 251 wiphy_unlock(ar->hw->wiphy); 252 rtnl_unlock(); 253 254 kfree(regd_copy); 255 256 if (ret) 257 goto err; 258 259 if (ar->state == ATH12K_STATE_ON) { 260 ret = ath12k_reg_update_chan_list(ar); 261 if (ret) 262 goto err; 263 } 264 265 return 0; 266 err: 267 ath12k_warn(ab, "failed to perform regd update : %d\n", ret); 268 return ret; 269 } 270 271 static enum nl80211_dfs_regions 272 ath12k_map_fw_dfs_region(enum ath12k_dfs_region dfs_region) 273 { 274 switch (dfs_region) { 275 case ATH12K_DFS_REG_FCC: 276 case ATH12K_DFS_REG_CN: 277 return NL80211_DFS_FCC; 278 case ATH12K_DFS_REG_ETSI: 279 case ATH12K_DFS_REG_KR: 280 return NL80211_DFS_ETSI; 281 case ATH12K_DFS_REG_MKK: 282 case ATH12K_DFS_REG_MKK_N: 283 return NL80211_DFS_JP; 284 default: 285 return NL80211_DFS_UNSET; 286 } 287 } 288 289 static u32 ath12k_map_fw_reg_flags(u16 reg_flags) 290 { 291 u32 flags = 0; 292 293 if (reg_flags & REGULATORY_CHAN_NO_IR) 294 flags = NL80211_RRF_NO_IR; 295 296 if (reg_flags & REGULATORY_CHAN_RADAR) 297 flags |= NL80211_RRF_DFS; 298 299 if (reg_flags & REGULATORY_CHAN_NO_OFDM) 300 flags |= NL80211_RRF_NO_OFDM; 301 302 if (reg_flags & REGULATORY_CHAN_INDOOR_ONLY) 303 flags |= NL80211_RRF_NO_OUTDOOR; 304 305 if (reg_flags & REGULATORY_CHAN_NO_HT40) 306 flags |= NL80211_RRF_NO_HT40; 307 308 if (reg_flags & REGULATORY_CHAN_NO_80MHZ) 309 flags |= NL80211_RRF_NO_80MHZ; 310 311 if (reg_flags & REGULATORY_CHAN_NO_160MHZ) 312 flags |= NL80211_RRF_NO_160MHZ; 313 314 return flags; 315 } 316 317 static bool 318 ath12k_reg_can_intersect(struct ieee80211_reg_rule *rule1, 319 struct ieee80211_reg_rule *rule2) 320 { 321 u32 start_freq1, end_freq1; 322 u32 start_freq2, end_freq2; 323 324 start_freq1 = rule1->freq_range.start_freq_khz; 325 start_freq2 = rule2->freq_range.start_freq_khz; 326 327 end_freq1 = rule1->freq_range.end_freq_khz; 328 end_freq2 = rule2->freq_range.end_freq_khz; 329 330 if ((start_freq1 >= start_freq2 && 331 start_freq1 < end_freq2) || 332 (start_freq2 > start_freq1 && 333 start_freq2 < end_freq1)) 334 return true; 335 336 /* TODO: Should we restrict intersection feasibility 337 * based on min bandwidth of the intersected region also, 338 * say the intersected rule should have a min bandwidth 339 * of 20MHz? 340 */ 341 342 return false; 343 } 344 345 static void ath12k_reg_intersect_rules(struct ieee80211_reg_rule *rule1, 346 struct ieee80211_reg_rule *rule2, 347 struct ieee80211_reg_rule *new_rule) 348 { 349 u32 start_freq1, end_freq1; 350 u32 start_freq2, end_freq2; 351 u32 freq_diff, max_bw; 352 353 start_freq1 = rule1->freq_range.start_freq_khz; 354 start_freq2 = rule2->freq_range.start_freq_khz; 355 356 end_freq1 = rule1->freq_range.end_freq_khz; 357 end_freq2 = rule2->freq_range.end_freq_khz; 358 359 new_rule->freq_range.start_freq_khz = max_t(u32, start_freq1, 360 start_freq2); 361 new_rule->freq_range.end_freq_khz = min_t(u32, end_freq1, end_freq2); 362 363 freq_diff = new_rule->freq_range.end_freq_khz - 364 new_rule->freq_range.start_freq_khz; 365 max_bw = min_t(u32, rule1->freq_range.max_bandwidth_khz, 366 rule2->freq_range.max_bandwidth_khz); 367 new_rule->freq_range.max_bandwidth_khz = min_t(u32, max_bw, freq_diff); 368 369 new_rule->power_rule.max_antenna_gain = 370 min_t(u32, rule1->power_rule.max_antenna_gain, 371 rule2->power_rule.max_antenna_gain); 372 373 new_rule->power_rule.max_eirp = min_t(u32, rule1->power_rule.max_eirp, 374 rule2->power_rule.max_eirp); 375 376 /* Use the flags of both the rules */ 377 new_rule->flags = rule1->flags | rule2->flags; 378 379 /* To be safe, lts use the max cac timeout of both rules */ 380 new_rule->dfs_cac_ms = max_t(u32, rule1->dfs_cac_ms, 381 rule2->dfs_cac_ms); 382 } 383 384 static struct ieee80211_regdomain * 385 ath12k_regd_intersect(struct ieee80211_regdomain *default_regd, 386 struct ieee80211_regdomain *curr_regd) 387 { 388 u8 num_old_regd_rules, num_curr_regd_rules, num_new_regd_rules; 389 struct ieee80211_reg_rule *old_rule, *curr_rule, *new_rule; 390 struct ieee80211_regdomain *new_regd = NULL; 391 u8 i, j, k; 392 393 num_old_regd_rules = default_regd->n_reg_rules; 394 num_curr_regd_rules = curr_regd->n_reg_rules; 395 num_new_regd_rules = 0; 396 397 /* Find the number of intersecting rules to allocate new regd memory */ 398 for (i = 0; i < num_old_regd_rules; i++) { 399 old_rule = default_regd->reg_rules + i; 400 for (j = 0; j < num_curr_regd_rules; j++) { 401 curr_rule = curr_regd->reg_rules + j; 402 403 if (ath12k_reg_can_intersect(old_rule, curr_rule)) 404 num_new_regd_rules++; 405 } 406 } 407 408 if (!num_new_regd_rules) 409 return NULL; 410 411 new_regd = kzalloc(sizeof(*new_regd) + (num_new_regd_rules * 412 sizeof(struct ieee80211_reg_rule)), 413 GFP_ATOMIC); 414 415 if (!new_regd) 416 return NULL; 417 418 /* We set the new country and dfs region directly and only trim 419 * the freq, power, antenna gain by intersecting with the 420 * default regdomain. Also MAX of the dfs cac timeout is selected. 421 */ 422 new_regd->n_reg_rules = num_new_regd_rules; 423 memcpy(new_regd->alpha2, curr_regd->alpha2, sizeof(new_regd->alpha2)); 424 new_regd->dfs_region = curr_regd->dfs_region; 425 new_rule = new_regd->reg_rules; 426 427 for (i = 0, k = 0; i < num_old_regd_rules; i++) { 428 old_rule = default_regd->reg_rules + i; 429 for (j = 0; j < num_curr_regd_rules; j++) { 430 curr_rule = curr_regd->reg_rules + j; 431 432 if (ath12k_reg_can_intersect(old_rule, curr_rule)) 433 ath12k_reg_intersect_rules(old_rule, curr_rule, 434 (new_rule + k++)); 435 } 436 } 437 return new_regd; 438 } 439 440 static const char * 441 ath12k_reg_get_regdom_str(enum nl80211_dfs_regions dfs_region) 442 { 443 switch (dfs_region) { 444 case NL80211_DFS_FCC: 445 return "FCC"; 446 case NL80211_DFS_ETSI: 447 return "ETSI"; 448 case NL80211_DFS_JP: 449 return "JP"; 450 default: 451 return "UNSET"; 452 } 453 } 454 455 static u16 456 ath12k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw) 457 { 458 u16 bw; 459 460 bw = end_freq - start_freq; 461 bw = min_t(u16, bw, max_bw); 462 463 if (bw >= 80 && bw < 160) 464 bw = 80; 465 else if (bw >= 40 && bw < 80) 466 bw = 40; 467 else if (bw < 40) 468 bw = 20; 469 470 return bw; 471 } 472 473 static void 474 ath12k_reg_update_rule(struct ieee80211_reg_rule *reg_rule, u32 start_freq, 475 u32 end_freq, u32 bw, u32 ant_gain, u32 reg_pwr, 476 u32 reg_flags) 477 { 478 reg_rule->freq_range.start_freq_khz = MHZ_TO_KHZ(start_freq); 479 reg_rule->freq_range.end_freq_khz = MHZ_TO_KHZ(end_freq); 480 reg_rule->freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw); 481 reg_rule->power_rule.max_antenna_gain = DBI_TO_MBI(ant_gain); 482 reg_rule->power_rule.max_eirp = DBM_TO_MBM(reg_pwr); 483 reg_rule->flags = reg_flags; 484 } 485 486 static void 487 ath12k_reg_update_weather_radar_band(struct ath12k_base *ab, 488 struct ieee80211_regdomain *regd, 489 struct ath12k_reg_rule *reg_rule, 490 u8 *rule_idx, u32 flags, u16 max_bw) 491 { 492 u32 end_freq; 493 u16 bw; 494 u8 i; 495 496 i = *rule_idx; 497 498 bw = ath12k_reg_adjust_bw(reg_rule->start_freq, 499 ETSI_WEATHER_RADAR_BAND_LOW, max_bw); 500 501 ath12k_reg_update_rule(regd->reg_rules + i, reg_rule->start_freq, 502 ETSI_WEATHER_RADAR_BAND_LOW, bw, 503 reg_rule->ant_gain, reg_rule->reg_power, 504 flags); 505 506 ath12k_dbg(ab, ATH12K_DBG_REG, 507 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 508 i + 1, reg_rule->start_freq, ETSI_WEATHER_RADAR_BAND_LOW, 509 bw, reg_rule->ant_gain, reg_rule->reg_power, 510 regd->reg_rules[i].dfs_cac_ms, 511 flags); 512 513 if (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_HIGH) 514 end_freq = ETSI_WEATHER_RADAR_BAND_HIGH; 515 else 516 end_freq = reg_rule->end_freq; 517 518 bw = ath12k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_LOW, end_freq, 519 max_bw); 520 521 i++; 522 523 ath12k_reg_update_rule(regd->reg_rules + i, 524 ETSI_WEATHER_RADAR_BAND_LOW, end_freq, bw, 525 reg_rule->ant_gain, reg_rule->reg_power, 526 flags); 527 528 regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT; 529 530 ath12k_dbg(ab, ATH12K_DBG_REG, 531 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 532 i + 1, ETSI_WEATHER_RADAR_BAND_LOW, end_freq, 533 bw, reg_rule->ant_gain, reg_rule->reg_power, 534 regd->reg_rules[i].dfs_cac_ms, 535 flags); 536 537 if (end_freq == reg_rule->end_freq) { 538 regd->n_reg_rules--; 539 *rule_idx = i; 540 return; 541 } 542 543 bw = ath12k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_HIGH, 544 reg_rule->end_freq, max_bw); 545 546 i++; 547 548 ath12k_reg_update_rule(regd->reg_rules + i, ETSI_WEATHER_RADAR_BAND_HIGH, 549 reg_rule->end_freq, bw, 550 reg_rule->ant_gain, reg_rule->reg_power, 551 flags); 552 553 ath12k_dbg(ab, ATH12K_DBG_REG, 554 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 555 i + 1, ETSI_WEATHER_RADAR_BAND_HIGH, reg_rule->end_freq, 556 bw, reg_rule->ant_gain, reg_rule->reg_power, 557 regd->reg_rules[i].dfs_cac_ms, 558 flags); 559 560 *rule_idx = i; 561 } 562 563 struct ieee80211_regdomain * 564 ath12k_reg_build_regd(struct ath12k_base *ab, 565 struct ath12k_reg_info *reg_info, bool intersect) 566 { 567 struct ieee80211_regdomain *tmp_regd, *default_regd, *new_regd = NULL; 568 struct ath12k_reg_rule *reg_rule; 569 u8 i = 0, j = 0, k = 0; 570 u8 num_rules; 571 u16 max_bw; 572 u32 flags; 573 char alpha2[3]; 574 575 num_rules = reg_info->num_5g_reg_rules + reg_info->num_2g_reg_rules; 576 577 /* FIXME: Currently taking reg rules for 6G only from Indoor AP mode list. 578 * This can be updated to choose the combination dynamically based on AP 579 * type and client type, after complete 6G regulatory support is added. 580 */ 581 if (reg_info->is_ext_reg_event) 582 num_rules += reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP]; 583 584 if (!num_rules) 585 goto ret; 586 587 /* Add max additional rules to accommodate weather radar band */ 588 if (reg_info->dfs_region == ATH12K_DFS_REG_ETSI) 589 num_rules += 2; 590 591 tmp_regd = kzalloc(sizeof(*tmp_regd) + 592 (num_rules * sizeof(struct ieee80211_reg_rule)), 593 GFP_ATOMIC); 594 if (!tmp_regd) 595 goto ret; 596 597 memcpy(tmp_regd->alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); 598 memcpy(alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); 599 alpha2[2] = '\0'; 600 tmp_regd->dfs_region = ath12k_map_fw_dfs_region(reg_info->dfs_region); 601 602 ath12k_dbg(ab, ATH12K_DBG_REG, 603 "\r\nCountry %s, CFG Regdomain %s FW Regdomain %d, num_reg_rules %d\n", 604 alpha2, ath12k_reg_get_regdom_str(tmp_regd->dfs_region), 605 reg_info->dfs_region, num_rules); 606 /* Update reg_rules[] below. Firmware is expected to 607 * send these rules in order(2G rules first and then 5G) 608 */ 609 for (; i < num_rules; i++) { 610 if (reg_info->num_2g_reg_rules && 611 (i < reg_info->num_2g_reg_rules)) { 612 reg_rule = reg_info->reg_rules_2g_ptr + i; 613 max_bw = min_t(u16, reg_rule->max_bw, 614 reg_info->max_bw_2g); 615 flags = 0; 616 } else if (reg_info->num_5g_reg_rules && 617 (j < reg_info->num_5g_reg_rules)) { 618 reg_rule = reg_info->reg_rules_5g_ptr + j++; 619 max_bw = min_t(u16, reg_rule->max_bw, 620 reg_info->max_bw_5g); 621 622 /* FW doesn't pass NL80211_RRF_AUTO_BW flag for 623 * BW Auto correction, we can enable this by default 624 * for all 5G rules here. The regulatory core performs 625 * BW correction if required and applies flags as 626 * per other BW rule flags we pass from here 627 */ 628 flags = NL80211_RRF_AUTO_BW; 629 } else if (reg_info->is_ext_reg_event && 630 reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP] && 631 (k < reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP])) { 632 reg_rule = reg_info->reg_rules_6g_ap_ptr[WMI_REG_INDOOR_AP] + k++; 633 max_bw = min_t(u16, reg_rule->max_bw, 634 reg_info->max_bw_6g_ap[WMI_REG_INDOOR_AP]); 635 flags = NL80211_RRF_AUTO_BW; 636 } else { 637 break; 638 } 639 640 flags |= ath12k_map_fw_reg_flags(reg_rule->flags); 641 642 ath12k_reg_update_rule(tmp_regd->reg_rules + i, 643 reg_rule->start_freq, 644 reg_rule->end_freq, max_bw, 645 reg_rule->ant_gain, reg_rule->reg_power, 646 flags); 647 648 /* Update dfs cac timeout if the dfs domain is ETSI and the 649 * new rule covers weather radar band. 650 * Default value of '0' corresponds to 60s timeout, so no 651 * need to update that for other rules. 652 */ 653 if (flags & NL80211_RRF_DFS && 654 reg_info->dfs_region == ATH12K_DFS_REG_ETSI && 655 (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_LOW && 656 reg_rule->start_freq < ETSI_WEATHER_RADAR_BAND_HIGH)){ 657 ath12k_reg_update_weather_radar_band(ab, tmp_regd, 658 reg_rule, &i, 659 flags, max_bw); 660 continue; 661 } 662 663 if (reg_info->is_ext_reg_event) { 664 ath12k_dbg(ab, ATH12K_DBG_REG, "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d) (%d, %d)\n", 665 i + 1, reg_rule->start_freq, reg_rule->end_freq, 666 max_bw, reg_rule->ant_gain, reg_rule->reg_power, 667 tmp_regd->reg_rules[i].dfs_cac_ms, 668 flags, reg_rule->psd_flag, reg_rule->psd_eirp); 669 } else { 670 ath12k_dbg(ab, ATH12K_DBG_REG, 671 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 672 i + 1, reg_rule->start_freq, reg_rule->end_freq, 673 max_bw, reg_rule->ant_gain, reg_rule->reg_power, 674 tmp_regd->reg_rules[i].dfs_cac_ms, 675 flags); 676 } 677 } 678 679 tmp_regd->n_reg_rules = i; 680 681 if (intersect) { 682 default_regd = ab->default_regd[reg_info->phy_id]; 683 684 /* Get a new regd by intersecting the received regd with 685 * our default regd. 686 */ 687 new_regd = ath12k_regd_intersect(default_regd, tmp_regd); 688 kfree(tmp_regd); 689 if (!new_regd) { 690 ath12k_warn(ab, "Unable to create intersected regdomain\n"); 691 goto ret; 692 } 693 } else { 694 new_regd = tmp_regd; 695 } 696 697 ret: 698 return new_regd; 699 } 700 701 void ath12k_regd_update_work(struct work_struct *work) 702 { 703 struct ath12k *ar = container_of(work, struct ath12k, 704 regd_update_work); 705 int ret; 706 707 ret = ath12k_regd_update(ar, false); 708 if (ret) { 709 /* Firmware has already moved to the new regd. We need 710 * to maintain channel consistency across FW, Host driver 711 * and userspace. Hence as a fallback mechanism we can set 712 * the prev or default country code to the firmware. 713 */ 714 /* TODO: Implement Fallback Mechanism */ 715 } 716 } 717 718 void ath12k_reg_init(struct ath12k *ar) 719 { 720 ar->hw->wiphy->regulatory_flags = REGULATORY_WIPHY_SELF_MANAGED; 721 ar->hw->wiphy->reg_notifier = ath12k_reg_notifier; 722 } 723 724 void ath12k_reg_free(struct ath12k_base *ab) 725 { 726 int i; 727 728 for (i = 0; i < ab->hw_params->max_radios; i++) { 729 kfree(ab->default_regd[i]); 730 kfree(ab->new_regd[i]); 731 } 732 } 733