1 // SPDX-License-Identifier: BSD-3-Clause-Clear 2 /* 3 * Copyright (c) 2018-2019 The Linux Foundation. All rights reserved. 4 */ 5 #include "core.h" 6 #include "debug.h" 7 8 /* World regdom to be used in case default regd from fw is unavailable */ 9 #define ATH11K_2GHZ_CH01_11 REG_RULE(2412 - 10, 2462 + 10, 40, 0, 20, 0) 10 #define ATH11K_5GHZ_5150_5350 REG_RULE(5150 - 10, 5350 + 10, 80, 0, 30,\ 11 NL80211_RRF_NO_IR) 12 #define ATH11K_5GHZ_5725_5850 REG_RULE(5725 - 10, 5850 + 10, 80, 0, 30,\ 13 NL80211_RRF_NO_IR) 14 15 #define ETSI_WEATHER_RADAR_BAND_LOW 5590 16 #define ETSI_WEATHER_RADAR_BAND_HIGH 5650 17 #define ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT 600000 18 19 static const struct ieee80211_regdomain ath11k_world_regd = { 20 .n_reg_rules = 3, 21 .alpha2 = "00", 22 .reg_rules = { 23 ATH11K_2GHZ_CH01_11, 24 ATH11K_5GHZ_5150_5350, 25 ATH11K_5GHZ_5725_5850, 26 } 27 }; 28 29 static bool ath11k_regdom_changes(struct ath11k *ar, char *alpha2) 30 { 31 const struct ieee80211_regdomain *regd; 32 33 regd = rcu_dereference_rtnl(ar->hw->wiphy->regd); 34 /* This can happen during wiphy registration where the previous 35 * user request is received before we update the regd received 36 * from firmware. 37 */ 38 if (!regd) 39 return true; 40 41 return memcmp(regd->alpha2, alpha2, 2) != 0; 42 } 43 44 static void 45 ath11k_reg_notifier(struct wiphy *wiphy, struct regulatory_request *request) 46 { 47 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 48 struct wmi_init_country_params init_country_param; 49 struct ath11k *ar = hw->priv; 50 int ret; 51 52 ath11k_dbg(ar->ab, ATH11K_DBG_REG, 53 "Regulatory Notification received for %s\n", wiphy_name(wiphy)); 54 55 /* Currently supporting only General User Hints. Cell base user 56 * hints to be handled later. 57 * Hints from other sources like Core, Beacons are not expected for 58 * self managed wiphy's 59 */ 60 if (!(request->initiator == NL80211_REGDOM_SET_BY_USER && 61 request->user_reg_hint_type == NL80211_USER_REG_HINT_USER)) { 62 ath11k_warn(ar->ab, "Unexpected Regulatory event for this wiphy\n"); 63 return; 64 } 65 66 if (!IS_ENABLED(CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS)) { 67 ath11k_dbg(ar->ab, ATH11K_DBG_REG, 68 "Country Setting is not allowed\n"); 69 return; 70 } 71 72 if (!ath11k_regdom_changes(ar, request->alpha2)) { 73 ath11k_dbg(ar->ab, ATH11K_DBG_REG, "Country is already set\n"); 74 return; 75 } 76 77 /* Set the country code to the firmware and wait for 78 * the WMI_REG_CHAN_LIST_CC EVENT for updating the 79 * reg info 80 */ 81 init_country_param.flags = ALPHA_IS_SET; 82 memcpy(&init_country_param.cc_info.alpha2, request->alpha2, 2); 83 init_country_param.cc_info.alpha2[2] = 0; 84 85 ret = ath11k_wmi_send_init_country_cmd(ar, init_country_param); 86 if (ret) 87 ath11k_warn(ar->ab, 88 "INIT Country code set to fw failed : %d\n", ret); 89 } 90 91 int ath11k_reg_update_chan_list(struct ath11k *ar) 92 { 93 struct ieee80211_supported_band **bands; 94 struct scan_chan_list_params *params; 95 struct ieee80211_channel *channel; 96 struct ieee80211_hw *hw = ar->hw; 97 struct channel_param *ch; 98 enum nl80211_band band; 99 int num_channels = 0; 100 int params_len; 101 int i, ret; 102 103 bands = hw->wiphy->bands; 104 for (band = 0; band < NUM_NL80211_BANDS; band++) { 105 if (!bands[band]) 106 continue; 107 108 for (i = 0; i < bands[band]->n_channels; i++) { 109 if (bands[band]->channels[i].flags & 110 IEEE80211_CHAN_DISABLED) 111 continue; 112 113 num_channels++; 114 } 115 } 116 117 if (WARN_ON(!num_channels)) 118 return -EINVAL; 119 120 params_len = sizeof(struct scan_chan_list_params) + 121 num_channels * sizeof(struct channel_param); 122 params = kzalloc(params_len, GFP_KERNEL); 123 124 if (!params) 125 return -ENOMEM; 126 127 params->pdev_id = ar->pdev->pdev_id; 128 params->nallchans = num_channels; 129 130 ch = params->ch_param; 131 132 for (band = 0; band < NUM_NL80211_BANDS; band++) { 133 if (!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 ath11k_dbg(ar->ab, ATH11K_DBG_WMI, 170 "mac channel [%d/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n", 171 i, params->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 = ath11k_wmi_send_scan_chan_list_cmd(ar, params); 183 kfree(params); 184 185 return ret; 186 } 187 188 static void ath11k_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 } 200 201 int ath11k_regd_update(struct ath11k *ar, bool init) 202 { 203 struct ieee80211_regdomain *regd, *regd_copy = NULL; 204 int ret, regd_len, pdev_id; 205 struct ath11k_base *ab; 206 207 ab = ar->ab; 208 pdev_id = ar->pdev_idx; 209 210 spin_lock_bh(&ab->base_lock); 211 212 if (init) { 213 /* Apply the regd received during init through 214 * WMI_REG_CHAN_LIST_CC event. In case of failure to 215 * receive the regd, initialize with a default world 216 * regulatory. 217 */ 218 if (ab->default_regd[pdev_id]) { 219 regd = ab->default_regd[pdev_id]; 220 } else { 221 ath11k_warn(ab, 222 "failed to receive default regd during init\n"); 223 regd = (struct ieee80211_regdomain *)&ath11k_world_regd; 224 } 225 } else { 226 regd = ab->new_regd[pdev_id]; 227 } 228 229 if (!regd) { 230 ret = -EINVAL; 231 spin_unlock_bh(&ab->base_lock); 232 goto err; 233 } 234 235 regd_len = sizeof(*regd) + (regd->n_reg_rules * 236 sizeof(struct ieee80211_reg_rule)); 237 238 regd_copy = kzalloc(regd_len, GFP_ATOMIC); 239 if (regd_copy) 240 ath11k_copy_regd(regd, regd_copy); 241 242 spin_unlock_bh(&ab->base_lock); 243 244 if (!regd_copy) { 245 ret = -ENOMEM; 246 goto err; 247 } 248 249 rtnl_lock(); 250 wiphy_lock(ar->hw->wiphy); 251 ret = regulatory_set_wiphy_regd_sync(ar->hw->wiphy, regd_copy); 252 wiphy_unlock(ar->hw->wiphy); 253 rtnl_unlock(); 254 255 kfree(regd_copy); 256 257 if (ret) 258 goto err; 259 260 if (ar->state == ATH11K_STATE_ON) { 261 ret = ath11k_reg_update_chan_list(ar); 262 if (ret) 263 goto err; 264 } 265 266 return 0; 267 err: 268 ath11k_warn(ab, "failed to perform regd update : %d\n", ret); 269 return ret; 270 } 271 272 static enum nl80211_dfs_regions 273 ath11k_map_fw_dfs_region(enum ath11k_dfs_region dfs_region) 274 { 275 switch (dfs_region) { 276 case ATH11K_DFS_REG_FCC: 277 case ATH11K_DFS_REG_CN: 278 return NL80211_DFS_FCC; 279 case ATH11K_DFS_REG_ETSI: 280 case ATH11K_DFS_REG_KR: 281 return NL80211_DFS_ETSI; 282 case ATH11K_DFS_REG_MKK: 283 case ATH11K_DFS_REG_MKK_N: 284 return NL80211_DFS_JP; 285 default: 286 return NL80211_DFS_UNSET; 287 } 288 } 289 290 static u32 ath11k_map_fw_reg_flags(u16 reg_flags) 291 { 292 u32 flags = 0; 293 294 if (reg_flags & REGULATORY_CHAN_NO_IR) 295 flags = NL80211_RRF_NO_IR; 296 297 if (reg_flags & REGULATORY_CHAN_RADAR) 298 flags |= NL80211_RRF_DFS; 299 300 if (reg_flags & REGULATORY_CHAN_NO_OFDM) 301 flags |= NL80211_RRF_NO_OFDM; 302 303 if (reg_flags & REGULATORY_CHAN_INDOOR_ONLY) 304 flags |= NL80211_RRF_NO_OUTDOOR; 305 306 if (reg_flags & REGULATORY_CHAN_NO_HT40) 307 flags |= NL80211_RRF_NO_HT40; 308 309 if (reg_flags & REGULATORY_CHAN_NO_80MHZ) 310 flags |= NL80211_RRF_NO_80MHZ; 311 312 if (reg_flags & REGULATORY_CHAN_NO_160MHZ) 313 flags |= NL80211_RRF_NO_160MHZ; 314 315 return flags; 316 } 317 318 static bool 319 ath11k_reg_can_intersect(struct ieee80211_reg_rule *rule1, 320 struct ieee80211_reg_rule *rule2) 321 { 322 u32 start_freq1, end_freq1; 323 u32 start_freq2, end_freq2; 324 325 start_freq1 = rule1->freq_range.start_freq_khz; 326 start_freq2 = rule2->freq_range.start_freq_khz; 327 328 end_freq1 = rule1->freq_range.end_freq_khz; 329 end_freq2 = rule2->freq_range.end_freq_khz; 330 331 if ((start_freq1 >= start_freq2 && 332 start_freq1 < end_freq2) || 333 (start_freq2 > start_freq1 && 334 start_freq2 < end_freq1)) 335 return true; 336 337 /* TODO: Should we restrict intersection feasibility 338 * based on min bandwidth of the intersected region also, 339 * say the intersected rule should have a min bandwidth 340 * of 20MHz? 341 */ 342 343 return false; 344 } 345 346 static void ath11k_reg_intersect_rules(struct ieee80211_reg_rule *rule1, 347 struct ieee80211_reg_rule *rule2, 348 struct ieee80211_reg_rule *new_rule) 349 { 350 u32 start_freq1, end_freq1; 351 u32 start_freq2, end_freq2; 352 u32 freq_diff, max_bw; 353 354 start_freq1 = rule1->freq_range.start_freq_khz; 355 start_freq2 = rule2->freq_range.start_freq_khz; 356 357 end_freq1 = rule1->freq_range.end_freq_khz; 358 end_freq2 = rule2->freq_range.end_freq_khz; 359 360 new_rule->freq_range.start_freq_khz = max_t(u32, start_freq1, 361 start_freq2); 362 new_rule->freq_range.end_freq_khz = min_t(u32, end_freq1, end_freq2); 363 364 freq_diff = new_rule->freq_range.end_freq_khz - 365 new_rule->freq_range.start_freq_khz; 366 max_bw = min_t(u32, rule1->freq_range.max_bandwidth_khz, 367 rule2->freq_range.max_bandwidth_khz); 368 new_rule->freq_range.max_bandwidth_khz = min_t(u32, max_bw, freq_diff); 369 370 new_rule->power_rule.max_antenna_gain = 371 min_t(u32, rule1->power_rule.max_antenna_gain, 372 rule2->power_rule.max_antenna_gain); 373 374 new_rule->power_rule.max_eirp = min_t(u32, rule1->power_rule.max_eirp, 375 rule2->power_rule.max_eirp); 376 377 /* Use the flags of both the rules */ 378 new_rule->flags = rule1->flags | rule2->flags; 379 380 /* To be safe, lts use the max cac timeout of both rules */ 381 new_rule->dfs_cac_ms = max_t(u32, rule1->dfs_cac_ms, 382 rule2->dfs_cac_ms); 383 } 384 385 static struct ieee80211_regdomain * 386 ath11k_regd_intersect(struct ieee80211_regdomain *default_regd, 387 struct ieee80211_regdomain *curr_regd) 388 { 389 u8 num_old_regd_rules, num_curr_regd_rules, num_new_regd_rules; 390 struct ieee80211_reg_rule *old_rule, *curr_rule, *new_rule; 391 struct ieee80211_regdomain *new_regd = NULL; 392 u8 i, j, k; 393 394 num_old_regd_rules = default_regd->n_reg_rules; 395 num_curr_regd_rules = curr_regd->n_reg_rules; 396 num_new_regd_rules = 0; 397 398 /* Find the number of intersecting rules to allocate new regd memory */ 399 for (i = 0; i < num_old_regd_rules; i++) { 400 old_rule = default_regd->reg_rules + i; 401 for (j = 0; j < num_curr_regd_rules; j++) { 402 curr_rule = curr_regd->reg_rules + j; 403 404 if (ath11k_reg_can_intersect(old_rule, curr_rule)) 405 num_new_regd_rules++; 406 } 407 } 408 409 if (!num_new_regd_rules) 410 return NULL; 411 412 new_regd = kzalloc(sizeof(*new_regd) + (num_new_regd_rules * 413 sizeof(struct ieee80211_reg_rule)), 414 GFP_ATOMIC); 415 416 if (!new_regd) 417 return NULL; 418 419 /* We set the new country and dfs region directly and only trim 420 * the freq, power, antenna gain by intersecting with the 421 * default regdomain. Also MAX of the dfs cac timeout is selected. 422 */ 423 new_regd->n_reg_rules = num_new_regd_rules; 424 memcpy(new_regd->alpha2, curr_regd->alpha2, sizeof(new_regd->alpha2)); 425 new_regd->dfs_region = curr_regd->dfs_region; 426 new_rule = new_regd->reg_rules; 427 428 for (i = 0, k = 0; i < num_old_regd_rules; i++) { 429 old_rule = default_regd->reg_rules + i; 430 for (j = 0; j < num_curr_regd_rules; j++) { 431 curr_rule = curr_regd->reg_rules + j; 432 433 if (ath11k_reg_can_intersect(old_rule, curr_rule)) 434 ath11k_reg_intersect_rules(old_rule, curr_rule, 435 (new_rule + k++)); 436 } 437 } 438 return new_regd; 439 } 440 441 static const char * 442 ath11k_reg_get_regdom_str(enum nl80211_dfs_regions dfs_region) 443 { 444 switch (dfs_region) { 445 case NL80211_DFS_FCC: 446 return "FCC"; 447 case NL80211_DFS_ETSI: 448 return "ETSI"; 449 case NL80211_DFS_JP: 450 return "JP"; 451 default: 452 return "UNSET"; 453 } 454 } 455 456 static u16 457 ath11k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw) 458 { 459 u16 bw; 460 461 bw = end_freq - start_freq; 462 bw = min_t(u16, bw, max_bw); 463 464 if (bw >= 80 && bw < 160) 465 bw = 80; 466 else if (bw >= 40 && bw < 80) 467 bw = 40; 468 else if (bw < 40) 469 bw = 20; 470 471 return bw; 472 } 473 474 static void 475 ath11k_reg_update_rule(struct ieee80211_reg_rule *reg_rule, u32 start_freq, 476 u32 end_freq, u32 bw, u32 ant_gain, u32 reg_pwr, 477 u32 reg_flags) 478 { 479 reg_rule->freq_range.start_freq_khz = MHZ_TO_KHZ(start_freq); 480 reg_rule->freq_range.end_freq_khz = MHZ_TO_KHZ(end_freq); 481 reg_rule->freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw); 482 reg_rule->power_rule.max_antenna_gain = DBI_TO_MBI(ant_gain); 483 reg_rule->power_rule.max_eirp = DBM_TO_MBM(reg_pwr); 484 reg_rule->flags = reg_flags; 485 } 486 487 static void 488 ath11k_reg_update_weather_radar_band(struct ath11k_base *ab, 489 struct ieee80211_regdomain *regd, 490 struct cur_reg_rule *reg_rule, 491 u8 *rule_idx, u32 flags, u16 max_bw) 492 { 493 u32 end_freq; 494 u16 bw; 495 u8 i; 496 497 i = *rule_idx; 498 499 bw = ath11k_reg_adjust_bw(reg_rule->start_freq, 500 ETSI_WEATHER_RADAR_BAND_LOW, max_bw); 501 502 ath11k_reg_update_rule(regd->reg_rules + i, reg_rule->start_freq, 503 ETSI_WEATHER_RADAR_BAND_LOW, bw, 504 reg_rule->ant_gain, reg_rule->reg_power, 505 flags); 506 507 ath11k_dbg(ab, ATH11K_DBG_REG, 508 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 509 i + 1, reg_rule->start_freq, ETSI_WEATHER_RADAR_BAND_LOW, 510 bw, reg_rule->ant_gain, reg_rule->reg_power, 511 regd->reg_rules[i].dfs_cac_ms, 512 flags); 513 514 if (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_HIGH) 515 end_freq = ETSI_WEATHER_RADAR_BAND_HIGH; 516 else 517 end_freq = reg_rule->end_freq; 518 519 bw = ath11k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_LOW, end_freq, 520 max_bw); 521 522 i++; 523 524 ath11k_reg_update_rule(regd->reg_rules + i, 525 ETSI_WEATHER_RADAR_BAND_LOW, end_freq, bw, 526 reg_rule->ant_gain, reg_rule->reg_power, 527 flags); 528 529 regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT; 530 531 ath11k_dbg(ab, ATH11K_DBG_REG, 532 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 533 i + 1, ETSI_WEATHER_RADAR_BAND_LOW, end_freq, 534 bw, reg_rule->ant_gain, reg_rule->reg_power, 535 regd->reg_rules[i].dfs_cac_ms, 536 flags); 537 538 if (end_freq == reg_rule->end_freq) { 539 regd->n_reg_rules--; 540 *rule_idx = i; 541 return; 542 } 543 544 bw = ath11k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_HIGH, 545 reg_rule->end_freq, max_bw); 546 547 i++; 548 549 ath11k_reg_update_rule(regd->reg_rules + i, ETSI_WEATHER_RADAR_BAND_HIGH, 550 reg_rule->end_freq, bw, 551 reg_rule->ant_gain, reg_rule->reg_power, 552 flags); 553 554 ath11k_dbg(ab, ATH11K_DBG_REG, 555 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 556 i + 1, ETSI_WEATHER_RADAR_BAND_HIGH, reg_rule->end_freq, 557 bw, reg_rule->ant_gain, reg_rule->reg_power, 558 regd->reg_rules[i].dfs_cac_ms, 559 flags); 560 561 *rule_idx = i; 562 } 563 564 struct ieee80211_regdomain * 565 ath11k_reg_build_regd(struct ath11k_base *ab, 566 struct cur_regulatory_info *reg_info, bool intersect) 567 { 568 struct ieee80211_regdomain *tmp_regd, *default_regd, *new_regd = NULL; 569 struct cur_reg_rule *reg_rule; 570 u8 i = 0, j = 0; 571 u8 num_rules; 572 u16 max_bw; 573 u32 flags; 574 char alpha2[3]; 575 576 num_rules = reg_info->num_5g_reg_rules + reg_info->num_2g_reg_rules; 577 578 if (!num_rules) 579 goto ret; 580 581 /* Add max additional rules to accommodate weather radar band */ 582 if (reg_info->dfs_region == ATH11K_DFS_REG_ETSI) 583 num_rules += 2; 584 585 tmp_regd = kzalloc(sizeof(*tmp_regd) + 586 (num_rules * sizeof(struct ieee80211_reg_rule)), 587 GFP_ATOMIC); 588 if (!tmp_regd) 589 goto ret; 590 591 memcpy(tmp_regd->alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); 592 memcpy(alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1); 593 alpha2[2] = '\0'; 594 tmp_regd->dfs_region = ath11k_map_fw_dfs_region(reg_info->dfs_region); 595 596 ath11k_dbg(ab, ATH11K_DBG_REG, 597 "\r\nCountry %s, CFG Regdomain %s FW Regdomain %d, num_reg_rules %d\n", 598 alpha2, ath11k_reg_get_regdom_str(tmp_regd->dfs_region), 599 reg_info->dfs_region, num_rules); 600 /* Update reg_rules[] below. Firmware is expected to 601 * send these rules in order(2G rules first and then 5G) 602 */ 603 for (; i < num_rules; i++) { 604 if (reg_info->num_2g_reg_rules && 605 (i < reg_info->num_2g_reg_rules)) { 606 reg_rule = reg_info->reg_rules_2g_ptr + i; 607 max_bw = min_t(u16, reg_rule->max_bw, 608 reg_info->max_bw_2g); 609 flags = 0; 610 } else if (reg_info->num_5g_reg_rules && 611 (j < reg_info->num_5g_reg_rules)) { 612 reg_rule = reg_info->reg_rules_5g_ptr + j++; 613 max_bw = min_t(u16, reg_rule->max_bw, 614 reg_info->max_bw_5g); 615 616 /* FW doesn't pass NL80211_RRF_AUTO_BW flag for 617 * BW Auto correction, we can enable this by default 618 * for all 5G rules here. The regulatory core performs 619 * BW correction if required and applies flags as 620 * per other BW rule flags we pass from here 621 */ 622 flags = NL80211_RRF_AUTO_BW; 623 } else { 624 break; 625 } 626 627 flags |= ath11k_map_fw_reg_flags(reg_rule->flags); 628 629 ath11k_reg_update_rule(tmp_regd->reg_rules + i, 630 reg_rule->start_freq, 631 reg_rule->end_freq, max_bw, 632 reg_rule->ant_gain, reg_rule->reg_power, 633 flags); 634 635 /* Update dfs cac timeout if the dfs domain is ETSI and the 636 * new rule covers weather radar band. 637 * Default value of '0' corresponds to 60s timeout, so no 638 * need to update that for other rules. 639 */ 640 if (flags & NL80211_RRF_DFS && 641 reg_info->dfs_region == ATH11K_DFS_REG_ETSI && 642 (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_LOW && 643 reg_rule->start_freq < ETSI_WEATHER_RADAR_BAND_HIGH)){ 644 ath11k_reg_update_weather_radar_band(ab, tmp_regd, 645 reg_rule, &i, 646 flags, max_bw); 647 continue; 648 } 649 650 ath11k_dbg(ab, ATH11K_DBG_REG, 651 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n", 652 i + 1, reg_rule->start_freq, reg_rule->end_freq, 653 max_bw, reg_rule->ant_gain, reg_rule->reg_power, 654 tmp_regd->reg_rules[i].dfs_cac_ms, 655 flags); 656 } 657 658 tmp_regd->n_reg_rules = i; 659 660 if (intersect) { 661 default_regd = ab->default_regd[reg_info->phy_id]; 662 663 /* Get a new regd by intersecting the received regd with 664 * our default regd. 665 */ 666 new_regd = ath11k_regd_intersect(default_regd, tmp_regd); 667 kfree(tmp_regd); 668 if (!new_regd) { 669 ath11k_warn(ab, "Unable to create intersected regdomain\n"); 670 goto ret; 671 } 672 } else { 673 new_regd = tmp_regd; 674 } 675 676 ret: 677 return new_regd; 678 } 679 680 void ath11k_regd_update_work(struct work_struct *work) 681 { 682 struct ath11k *ar = container_of(work, struct ath11k, 683 regd_update_work); 684 int ret; 685 686 ret = ath11k_regd_update(ar, false); 687 if (ret) { 688 /* Firmware has already moved to the new regd. We need 689 * to maintain channel consistency across FW, Host driver 690 * and userspace. Hence as a fallback mechanism we can set 691 * the prev or default country code to the firmware. 692 */ 693 /* TODO: Implement Fallback Mechanism */ 694 } 695 } 696 697 void ath11k_reg_init(struct ath11k *ar) 698 { 699 ar->hw->wiphy->regulatory_flags = REGULATORY_WIPHY_SELF_MANAGED; 700 ar->hw->wiphy->reg_notifier = ath11k_reg_notifier; 701 } 702 703 void ath11k_reg_free(struct ath11k_base *ab) 704 { 705 int i; 706 707 for (i = 0; i < ab->hw_params.max_radios; i++) { 708 kfree(ab->default_regd[i]); 709 kfree(ab->new_regd[i]); 710 } 711 } 712