Loading...
Note: File does not exist in v4.10.11.
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
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 *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(hw, 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
93int 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 (!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 (!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
187static 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
200int ath12k_regd_update(struct ath12k *ar, bool init)
201{
202 struct ieee80211_hw *hw = ar->hw;
203 struct ieee80211_regdomain *regd, *regd_copy = NULL;
204 int ret, regd_len, pdev_id;
205 struct ath12k_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 ath12k_warn(ab,
222 "failed to receive default regd during init\n");
223 regd = (struct ieee80211_regdomain *)&ath12k_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 ath12k_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(hw->wiphy);
251 ret = regulatory_set_wiphy_regd_sync(hw->wiphy, regd_copy);
252 wiphy_unlock(hw->wiphy);
253 rtnl_unlock();
254
255 kfree(regd_copy);
256
257 if (ret)
258 goto err;
259
260 if (ar->state == ATH12K_STATE_ON) {
261 ret = ath12k_reg_update_chan_list(ar);
262 if (ret)
263 goto err;
264 }
265
266 return 0;
267err:
268 ath12k_warn(ab, "failed to perform regd update : %d\n", ret);
269 return ret;
270}
271
272static enum nl80211_dfs_regions
273ath12k_map_fw_dfs_region(enum ath12k_dfs_region dfs_region)
274{
275 switch (dfs_region) {
276 case ATH12K_DFS_REG_FCC:
277 case ATH12K_DFS_REG_CN:
278 return NL80211_DFS_FCC;
279 case ATH12K_DFS_REG_ETSI:
280 case ATH12K_DFS_REG_KR:
281 return NL80211_DFS_ETSI;
282 case ATH12K_DFS_REG_MKK:
283 case ATH12K_DFS_REG_MKK_N:
284 return NL80211_DFS_JP;
285 default:
286 return NL80211_DFS_UNSET;
287 }
288}
289
290static u32 ath12k_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
318static u32 ath12k_map_fw_phy_flags(u32 phy_flags)
319{
320 u32 flags = 0;
321
322 if (phy_flags & ATH12K_REG_PHY_BITMAP_NO11AX)
323 flags |= NL80211_RRF_NO_HE;
324
325 if (phy_flags & ATH12K_REG_PHY_BITMAP_NO11BE)
326 flags |= NL80211_RRF_NO_EHT;
327
328 return flags;
329}
330
331static bool
332ath12k_reg_can_intersect(struct ieee80211_reg_rule *rule1,
333 struct ieee80211_reg_rule *rule2)
334{
335 u32 start_freq1, end_freq1;
336 u32 start_freq2, end_freq2;
337
338 start_freq1 = rule1->freq_range.start_freq_khz;
339 start_freq2 = rule2->freq_range.start_freq_khz;
340
341 end_freq1 = rule1->freq_range.end_freq_khz;
342 end_freq2 = rule2->freq_range.end_freq_khz;
343
344 if ((start_freq1 >= start_freq2 &&
345 start_freq1 < end_freq2) ||
346 (start_freq2 > start_freq1 &&
347 start_freq2 < end_freq1))
348 return true;
349
350 /* TODO: Should we restrict intersection feasibility
351 * based on min bandwidth of the intersected region also,
352 * say the intersected rule should have a min bandwidth
353 * of 20MHz?
354 */
355
356 return false;
357}
358
359static void ath12k_reg_intersect_rules(struct ieee80211_reg_rule *rule1,
360 struct ieee80211_reg_rule *rule2,
361 struct ieee80211_reg_rule *new_rule)
362{
363 u32 start_freq1, end_freq1;
364 u32 start_freq2, end_freq2;
365 u32 freq_diff, max_bw;
366
367 start_freq1 = rule1->freq_range.start_freq_khz;
368 start_freq2 = rule2->freq_range.start_freq_khz;
369
370 end_freq1 = rule1->freq_range.end_freq_khz;
371 end_freq2 = rule2->freq_range.end_freq_khz;
372
373 new_rule->freq_range.start_freq_khz = max_t(u32, start_freq1,
374 start_freq2);
375 new_rule->freq_range.end_freq_khz = min_t(u32, end_freq1, end_freq2);
376
377 freq_diff = new_rule->freq_range.end_freq_khz -
378 new_rule->freq_range.start_freq_khz;
379 max_bw = min_t(u32, rule1->freq_range.max_bandwidth_khz,
380 rule2->freq_range.max_bandwidth_khz);
381 new_rule->freq_range.max_bandwidth_khz = min_t(u32, max_bw, freq_diff);
382
383 new_rule->power_rule.max_antenna_gain =
384 min_t(u32, rule1->power_rule.max_antenna_gain,
385 rule2->power_rule.max_antenna_gain);
386
387 new_rule->power_rule.max_eirp = min_t(u32, rule1->power_rule.max_eirp,
388 rule2->power_rule.max_eirp);
389
390 /* Use the flags of both the rules */
391 new_rule->flags = rule1->flags | rule2->flags;
392
393 /* To be safe, lts use the max cac timeout of both rules */
394 new_rule->dfs_cac_ms = max_t(u32, rule1->dfs_cac_ms,
395 rule2->dfs_cac_ms);
396}
397
398static struct ieee80211_regdomain *
399ath12k_regd_intersect(struct ieee80211_regdomain *default_regd,
400 struct ieee80211_regdomain *curr_regd)
401{
402 u8 num_old_regd_rules, num_curr_regd_rules, num_new_regd_rules;
403 struct ieee80211_reg_rule *old_rule, *curr_rule, *new_rule;
404 struct ieee80211_regdomain *new_regd = NULL;
405 u8 i, j, k;
406
407 num_old_regd_rules = default_regd->n_reg_rules;
408 num_curr_regd_rules = curr_regd->n_reg_rules;
409 num_new_regd_rules = 0;
410
411 /* Find the number of intersecting rules to allocate new regd memory */
412 for (i = 0; i < num_old_regd_rules; i++) {
413 old_rule = default_regd->reg_rules + i;
414 for (j = 0; j < num_curr_regd_rules; j++) {
415 curr_rule = curr_regd->reg_rules + j;
416
417 if (ath12k_reg_can_intersect(old_rule, curr_rule))
418 num_new_regd_rules++;
419 }
420 }
421
422 if (!num_new_regd_rules)
423 return NULL;
424
425 new_regd = kzalloc(sizeof(*new_regd) + (num_new_regd_rules *
426 sizeof(struct ieee80211_reg_rule)),
427 GFP_ATOMIC);
428
429 if (!new_regd)
430 return NULL;
431
432 /* We set the new country and dfs region directly and only trim
433 * the freq, power, antenna gain by intersecting with the
434 * default regdomain. Also MAX of the dfs cac timeout is selected.
435 */
436 new_regd->n_reg_rules = num_new_regd_rules;
437 memcpy(new_regd->alpha2, curr_regd->alpha2, sizeof(new_regd->alpha2));
438 new_regd->dfs_region = curr_regd->dfs_region;
439 new_rule = new_regd->reg_rules;
440
441 for (i = 0, k = 0; i < num_old_regd_rules; i++) {
442 old_rule = default_regd->reg_rules + i;
443 for (j = 0; j < num_curr_regd_rules; j++) {
444 curr_rule = curr_regd->reg_rules + j;
445
446 if (ath12k_reg_can_intersect(old_rule, curr_rule))
447 ath12k_reg_intersect_rules(old_rule, curr_rule,
448 (new_rule + k++));
449 }
450 }
451 return new_regd;
452}
453
454static const char *
455ath12k_reg_get_regdom_str(enum nl80211_dfs_regions dfs_region)
456{
457 switch (dfs_region) {
458 case NL80211_DFS_FCC:
459 return "FCC";
460 case NL80211_DFS_ETSI:
461 return "ETSI";
462 case NL80211_DFS_JP:
463 return "JP";
464 default:
465 return "UNSET";
466 }
467}
468
469static u16
470ath12k_reg_adjust_bw(u16 start_freq, u16 end_freq, u16 max_bw)
471{
472 u16 bw;
473
474 bw = end_freq - start_freq;
475 bw = min_t(u16, bw, max_bw);
476
477 if (bw >= 80 && bw < 160)
478 bw = 80;
479 else if (bw >= 40 && bw < 80)
480 bw = 40;
481 else if (bw < 40)
482 bw = 20;
483
484 return bw;
485}
486
487static void
488ath12k_reg_update_rule(struct ieee80211_reg_rule *reg_rule, u32 start_freq,
489 u32 end_freq, u32 bw, u32 ant_gain, u32 reg_pwr,
490 u32 reg_flags)
491{
492 reg_rule->freq_range.start_freq_khz = MHZ_TO_KHZ(start_freq);
493 reg_rule->freq_range.end_freq_khz = MHZ_TO_KHZ(end_freq);
494 reg_rule->freq_range.max_bandwidth_khz = MHZ_TO_KHZ(bw);
495 reg_rule->power_rule.max_antenna_gain = DBI_TO_MBI(ant_gain);
496 reg_rule->power_rule.max_eirp = DBM_TO_MBM(reg_pwr);
497 reg_rule->flags = reg_flags;
498}
499
500static void
501ath12k_reg_update_weather_radar_band(struct ath12k_base *ab,
502 struct ieee80211_regdomain *regd,
503 struct ath12k_reg_rule *reg_rule,
504 u8 *rule_idx, u32 flags, u16 max_bw)
505{
506 u32 end_freq;
507 u16 bw;
508 u8 i;
509
510 i = *rule_idx;
511
512 bw = ath12k_reg_adjust_bw(reg_rule->start_freq,
513 ETSI_WEATHER_RADAR_BAND_LOW, max_bw);
514
515 ath12k_reg_update_rule(regd->reg_rules + i, reg_rule->start_freq,
516 ETSI_WEATHER_RADAR_BAND_LOW, bw,
517 reg_rule->ant_gain, reg_rule->reg_power,
518 flags);
519
520 ath12k_dbg(ab, ATH12K_DBG_REG,
521 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
522 i + 1, reg_rule->start_freq, ETSI_WEATHER_RADAR_BAND_LOW,
523 bw, reg_rule->ant_gain, reg_rule->reg_power,
524 regd->reg_rules[i].dfs_cac_ms,
525 flags);
526
527 if (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_HIGH)
528 end_freq = ETSI_WEATHER_RADAR_BAND_HIGH;
529 else
530 end_freq = reg_rule->end_freq;
531
532 bw = ath12k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_LOW, end_freq,
533 max_bw);
534
535 i++;
536
537 ath12k_reg_update_rule(regd->reg_rules + i,
538 ETSI_WEATHER_RADAR_BAND_LOW, end_freq, bw,
539 reg_rule->ant_gain, reg_rule->reg_power,
540 flags);
541
542 regd->reg_rules[i].dfs_cac_ms = ETSI_WEATHER_RADAR_BAND_CAC_TIMEOUT;
543
544 ath12k_dbg(ab, ATH12K_DBG_REG,
545 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
546 i + 1, ETSI_WEATHER_RADAR_BAND_LOW, end_freq,
547 bw, reg_rule->ant_gain, reg_rule->reg_power,
548 regd->reg_rules[i].dfs_cac_ms,
549 flags);
550
551 if (end_freq == reg_rule->end_freq) {
552 regd->n_reg_rules--;
553 *rule_idx = i;
554 return;
555 }
556
557 bw = ath12k_reg_adjust_bw(ETSI_WEATHER_RADAR_BAND_HIGH,
558 reg_rule->end_freq, max_bw);
559
560 i++;
561
562 ath12k_reg_update_rule(regd->reg_rules + i, ETSI_WEATHER_RADAR_BAND_HIGH,
563 reg_rule->end_freq, bw,
564 reg_rule->ant_gain, reg_rule->reg_power,
565 flags);
566
567 ath12k_dbg(ab, ATH12K_DBG_REG,
568 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
569 i + 1, ETSI_WEATHER_RADAR_BAND_HIGH, reg_rule->end_freq,
570 bw, reg_rule->ant_gain, reg_rule->reg_power,
571 regd->reg_rules[i].dfs_cac_ms,
572 flags);
573
574 *rule_idx = i;
575}
576
577struct ieee80211_regdomain *
578ath12k_reg_build_regd(struct ath12k_base *ab,
579 struct ath12k_reg_info *reg_info, bool intersect)
580{
581 struct ieee80211_regdomain *tmp_regd, *default_regd, *new_regd = NULL;
582 struct ath12k_reg_rule *reg_rule;
583 u8 i = 0, j = 0, k = 0;
584 u8 num_rules;
585 u16 max_bw;
586 u32 flags;
587 char alpha2[3];
588
589 num_rules = reg_info->num_5g_reg_rules + reg_info->num_2g_reg_rules;
590
591 /* FIXME: Currently taking reg rules for 6G only from Indoor AP mode list.
592 * This can be updated to choose the combination dynamically based on AP
593 * type and client type, after complete 6G regulatory support is added.
594 */
595 if (reg_info->is_ext_reg_event)
596 num_rules += reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP];
597
598 if (!num_rules)
599 goto ret;
600
601 /* Add max additional rules to accommodate weather radar band */
602 if (reg_info->dfs_region == ATH12K_DFS_REG_ETSI)
603 num_rules += 2;
604
605 tmp_regd = kzalloc(sizeof(*tmp_regd) +
606 (num_rules * sizeof(struct ieee80211_reg_rule)),
607 GFP_ATOMIC);
608 if (!tmp_regd)
609 goto ret;
610
611 memcpy(tmp_regd->alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1);
612 memcpy(alpha2, reg_info->alpha2, REG_ALPHA2_LEN + 1);
613 alpha2[2] = '\0';
614 tmp_regd->dfs_region = ath12k_map_fw_dfs_region(reg_info->dfs_region);
615
616 ath12k_dbg(ab, ATH12K_DBG_REG,
617 "\r\nCountry %s, CFG Regdomain %s FW Regdomain %d, num_reg_rules %d\n",
618 alpha2, ath12k_reg_get_regdom_str(tmp_regd->dfs_region),
619 reg_info->dfs_region, num_rules);
620 /* Update reg_rules[] below. Firmware is expected to
621 * send these rules in order(2G rules first and then 5G)
622 */
623 for (; i < num_rules; i++) {
624 if (reg_info->num_2g_reg_rules &&
625 (i < reg_info->num_2g_reg_rules)) {
626 reg_rule = reg_info->reg_rules_2g_ptr + i;
627 max_bw = min_t(u16, reg_rule->max_bw,
628 reg_info->max_bw_2g);
629 flags = 0;
630 } else if (reg_info->num_5g_reg_rules &&
631 (j < reg_info->num_5g_reg_rules)) {
632 reg_rule = reg_info->reg_rules_5g_ptr + j++;
633 max_bw = min_t(u16, reg_rule->max_bw,
634 reg_info->max_bw_5g);
635
636 /* FW doesn't pass NL80211_RRF_AUTO_BW flag for
637 * BW Auto correction, we can enable this by default
638 * for all 5G rules here. The regulatory core performs
639 * BW correction if required and applies flags as
640 * per other BW rule flags we pass from here
641 */
642 flags = NL80211_RRF_AUTO_BW;
643 } else if (reg_info->is_ext_reg_event &&
644 reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP] &&
645 (k < reg_info->num_6g_reg_rules_ap[WMI_REG_INDOOR_AP])) {
646 reg_rule = reg_info->reg_rules_6g_ap_ptr[WMI_REG_INDOOR_AP] + k++;
647 max_bw = min_t(u16, reg_rule->max_bw,
648 reg_info->max_bw_6g_ap[WMI_REG_INDOOR_AP]);
649 flags = NL80211_RRF_AUTO_BW;
650 } else {
651 break;
652 }
653
654 flags |= ath12k_map_fw_reg_flags(reg_rule->flags);
655 flags |= ath12k_map_fw_phy_flags(reg_info->phybitmap);
656
657 ath12k_reg_update_rule(tmp_regd->reg_rules + i,
658 reg_rule->start_freq,
659 reg_rule->end_freq, max_bw,
660 reg_rule->ant_gain, reg_rule->reg_power,
661 flags);
662
663 /* Update dfs cac timeout if the dfs domain is ETSI and the
664 * new rule covers weather radar band.
665 * Default value of '0' corresponds to 60s timeout, so no
666 * need to update that for other rules.
667 */
668 if (flags & NL80211_RRF_DFS &&
669 reg_info->dfs_region == ATH12K_DFS_REG_ETSI &&
670 (reg_rule->end_freq > ETSI_WEATHER_RADAR_BAND_LOW &&
671 reg_rule->start_freq < ETSI_WEATHER_RADAR_BAND_HIGH)){
672 ath12k_reg_update_weather_radar_band(ab, tmp_regd,
673 reg_rule, &i,
674 flags, max_bw);
675 continue;
676 }
677
678 if (reg_info->is_ext_reg_event) {
679 ath12k_dbg(ab, ATH12K_DBG_REG, "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d) (%d, %d)\n",
680 i + 1, reg_rule->start_freq, reg_rule->end_freq,
681 max_bw, reg_rule->ant_gain, reg_rule->reg_power,
682 tmp_regd->reg_rules[i].dfs_cac_ms,
683 flags, reg_rule->psd_flag, reg_rule->psd_eirp);
684 } else {
685 ath12k_dbg(ab, ATH12K_DBG_REG,
686 "\t%d. (%d - %d @ %d) (%d, %d) (%d ms) (FLAGS %d)\n",
687 i + 1, reg_rule->start_freq, reg_rule->end_freq,
688 max_bw, reg_rule->ant_gain, reg_rule->reg_power,
689 tmp_regd->reg_rules[i].dfs_cac_ms,
690 flags);
691 }
692 }
693
694 tmp_regd->n_reg_rules = i;
695
696 if (intersect) {
697 default_regd = ab->default_regd[reg_info->phy_id];
698
699 /* Get a new regd by intersecting the received regd with
700 * our default regd.
701 */
702 new_regd = ath12k_regd_intersect(default_regd, tmp_regd);
703 kfree(tmp_regd);
704 if (!new_regd) {
705 ath12k_warn(ab, "Unable to create intersected regdomain\n");
706 goto ret;
707 }
708 } else {
709 new_regd = tmp_regd;
710 }
711
712ret:
713 return new_regd;
714}
715
716void ath12k_regd_update_work(struct work_struct *work)
717{
718 struct ath12k *ar = container_of(work, struct ath12k,
719 regd_update_work);
720 int ret;
721
722 ret = ath12k_regd_update(ar, false);
723 if (ret) {
724 /* Firmware has already moved to the new regd. We need
725 * to maintain channel consistency across FW, Host driver
726 * and userspace. Hence as a fallback mechanism we can set
727 * the prev or default country code to the firmware.
728 */
729 /* TODO: Implement Fallback Mechanism */
730 }
731}
732
733void ath12k_reg_init(struct ieee80211_hw *hw)
734{
735 hw->wiphy->regulatory_flags = REGULATORY_WIPHY_SELF_MANAGED;
736 hw->wiphy->reg_notifier = ath12k_reg_notifier;
737}
738
739void ath12k_reg_free(struct ath12k_base *ab)
740{
741 int i;
742
743 for (i = 0; i < ab->hw_params->max_radios; i++) {
744 kfree(ab->default_regd[i]);
745 kfree(ab->new_regd[i]);
746 }
747}