1 /* 2 * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2002-2010, Atheros Communications Inc. 4 * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /** 20 * DOC: This file contains NOL related functionality, NOL being the non 21 * occupancy list. After radar has been detected in a particular channel, 22 * the channel cannot be used for a period of 30 minutes which is called 23 * the non occupancy. The NOL is basically a list of all the channels that 24 * radar has been detected on. Each channel has a 30 minute timer associated 25 * with it. This file contains the functionality to add a channel to the NOL, 26 * the NOL timer function and the functionality to remove a channel from the 27 * NOL when its time is up. 28 */ 29 30 #include "../dfs.h" 31 #include "../dfs_channel.h" 32 #include "../dfs_ioctl_private.h" 33 #include "../dfs_zero_cac.h" 34 #include "../dfs_internal.h" 35 #include <qdf_time.h> 36 #include <wlan_dfs_mlme_api.h> 37 #include <wlan_objmgr_vdev_obj.h> 38 #include <wlan_dfs_utils_api.h> 39 #include <wlan_reg_services_api.h> 40 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 41 #include "../dfs_process_radar_found_ind.h" 42 #include "../dfs_partial_offload_radar.h" 43 #endif 44 #include <qdf_types.h> 45 46 void dfs_set_update_nol_flag(struct wlan_dfs *dfs, bool val) 47 { 48 dfs->update_nol = val; 49 } 50 51 bool dfs_get_update_nol_flag(struct wlan_dfs *dfs) 52 { 53 return dfs->update_nol; 54 } 55 56 /** 57 * dfs_nol_elem_free_work_cb - Free NOL element 58 * 59 * Free the NOL element memory 60 */ 61 static void dfs_nol_elem_free_work_cb(void *context) 62 { 63 struct wlan_dfs *dfs = (struct wlan_dfs *)context; 64 struct dfs_nolelem *nol_head; 65 66 while (true) { 67 WLAN_DFSNOL_LOCK(dfs); 68 69 nol_head = TAILQ_FIRST(&dfs->dfs_nol_free_list); 70 if (nol_head) { 71 TAILQ_REMOVE(&dfs->dfs_nol_free_list, nol_head, 72 nolelem_list); 73 WLAN_DFSNOL_UNLOCK(dfs); 74 qdf_hrtimer_kill(&nol_head->nol_timer); 75 qdf_flush_work(&nol_head->nol_timer_completion_work); 76 qdf_destroy_work(NULL, 77 &nol_head->nol_timer_completion_work); 78 qdf_mem_free(nol_head); 79 } else { 80 WLAN_DFSNOL_UNLOCK(dfs); 81 break; 82 } 83 } 84 } 85 86 void dfs_nol_attach(struct wlan_dfs *dfs) 87 { 88 dfs->wlan_dfs_nol_timeout = DFS_NOL_TIMEOUT_S; 89 qdf_create_work(NULL, &dfs->dfs_nol_elem_free_work, 90 dfs_nol_elem_free_work_cb, dfs); 91 TAILQ_INIT(&dfs->dfs_nol_free_list); 92 dfs->dfs_use_nol = 1; 93 WLAN_DFSNOL_LOCK_CREATE(dfs); 94 } 95 96 void dfs_nol_detach(struct wlan_dfs *dfs) 97 { 98 dfs_nol_timer_cleanup(dfs); 99 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 100 qdf_destroy_work(NULL, &dfs->dfs_nol_elem_free_work); 101 WLAN_DFSNOL_LOCK_DESTROY(dfs); 102 } 103 104 /** 105 * dfs_nol_delete() - Delete the given frequency/chwidth from the NOL. 106 * @dfs: Pointer to wlan_dfs structure. 107 * @delfreq: Freq to delete. 108 * @delchwidth: Channel width to delete. 109 */ 110 static void dfs_nol_delete(struct wlan_dfs *dfs, 111 uint16_t delfreq, 112 uint16_t delchwidth) 113 { 114 struct dfs_nolelem *nol, **prev_next; 115 116 if (!dfs) { 117 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 118 return; 119 } 120 121 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 122 "remove channel=%d/%d MHz from NOL", 123 delfreq, delchwidth); 124 prev_next = &(dfs->dfs_nol); 125 nol = dfs->dfs_nol; 126 while (nol) { 127 if (nol->nol_freq == delfreq && 128 nol->nol_chwidth == delchwidth) { 129 *prev_next = nol->nol_next; 130 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 131 "removing channel %d/%dMHz from NOL tstamp=%d", 132 nol->nol_freq, 133 nol->nol_chwidth, 134 (qdf_system_ticks_to_msecs 135 (qdf_system_ticks()) / 1000)); 136 TAILQ_INSERT_TAIL(&dfs->dfs_nol_free_list, 137 nol, nolelem_list); 138 nol = *prev_next; 139 140 /* Update the NOL counter. */ 141 dfs->dfs_nol_count--; 142 143 /* Be paranoid! */ 144 if (dfs->dfs_nol_count < 0) { 145 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0; eek!"); 146 dfs->dfs_nol_count = 0; 147 } 148 149 } else { 150 prev_next = &(nol->nol_next); 151 nol = nol->nol_next; 152 } 153 } 154 } 155 156 void dfs_process_noltimeout_completion(void *context) 157 { 158 struct dfs_nolelem *nol_arg; 159 struct wlan_dfs *dfs; 160 uint16_t delfreq; 161 uint16_t delchwidth; 162 uint8_t chan; 163 164 nol_arg = (struct dfs_nolelem *)context; 165 dfs = nol_arg->nol_dfs; 166 delfreq = nol_arg->nol_freq; 167 delchwidth = nol_arg->nol_chwidth; 168 /* Delete the given NOL entry. */ 169 DFS_NOL_DELETE_CHAN_LOCKED(dfs, delfreq, delchwidth); 170 171 utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, 172 &delfreq, 1, DFS_NOL_RESET); 173 /* Update the wireless stack with the new NOL. */ 174 dfs_nol_update(dfs); 175 176 dfs_mlme_nol_timeout_notification(dfs->dfs_pdev_obj); 177 chan = utils_dfs_freq_to_chan(delfreq); 178 utils_dfs_deliver_event(dfs->dfs_pdev_obj, delfreq, 179 WLAN_EV_NOL_FINISHED); 180 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 181 "remove channel %d from nol", chan); 182 utils_dfs_unmark_precac_nol_for_freq(dfs->dfs_pdev_obj, delfreq); 183 184 utils_dfs_save_nol(dfs->dfs_pdev_obj); 185 186 /* 187 * Check if a channel is configured by the user to which we have to 188 * switch after it's NOL expiry. If that is the case, change 189 * channel immediately. 190 * 191 * If a channel switch is required (indicated by the return value of 192 * dfs_switch_to_postnol_chan_if_nol_expired), return from this function 193 * without posting Start event to Agile SM. That will be taken care 194 * of, after VAP start. 195 */ 196 if (dfs_switch_to_postnol_chan_if_nol_expired(dfs)) 197 return; 198 /* 199 * If BW Expand is enabled, check if the user configured channel is 200 * available. If it is available, STOP the AGILE SM and Restart the 201 * AGILE SM. This will clear any old preCAC/RCAC chan information. 202 */ 203 if (dfs_bwexpand_find_usr_cnf_chan(dfs)) { 204 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 205 DFS_AGILE_SM_EV_AGILE_STOP); 206 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 207 DFS_AGILE_SM_EV_AGILE_START); 208 } else { 209 /* 210 * In case of interCAC feature, check if the user configured 211 * desired channel is RCAC done or not. 212 * (AP operating on an intermediate channel as desired channel 213 * is still not CAC done). If the RCAC of the desired channel 214 * was interrupted by radar, initiate RCAC on NOL expiry 215 * of the channel. 216 * 217 * If rcac is not started by dfs_restart_rcac_on_nol_expiry() 218 * API initiate rcac start here. 219 */ 220 if (!dfs_restart_rcac_on_nol_expiry(dfs)) 221 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 222 DFS_AGILE_SM_EV_AGILE_START); 223 } 224 } 225 226 /** 227 * dfs_remove_from_nol() - Remove the freq from NOL list. 228 * @arg: argument of the timer 229 * 230 * When NOL times out, this function removes the channel from NOL list. 231 */ 232 #ifdef CONFIG_CHAN_FREQ_API 233 234 static enum qdf_hrtimer_restart_status 235 dfs_remove_from_nol(qdf_hrtimer_data_t *arg) 236 { 237 struct dfs_nolelem *nol_arg; 238 239 nol_arg = container_of(arg, struct dfs_nolelem, nol_timer); 240 241 qdf_sched_work(NULL, &nol_arg->nol_timer_completion_work); 242 243 return QDF_HRTIMER_NORESTART; 244 } 245 #endif 246 247 void dfs_print_nol(struct wlan_dfs *dfs) 248 { 249 struct dfs_nolelem *nol; 250 int i = 0; 251 uint32_t diff_ms, remaining_sec; 252 253 if (!dfs) { 254 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 255 return; 256 } 257 258 nol = dfs->dfs_nol; 259 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "NOL"); 260 while (nol) { 261 diff_ms = qdf_do_div(qdf_get_monotonic_boottime() - 262 nol->nol_start_us, 1000); 263 if (nol->nol_timeout_ms > diff_ms) 264 diff_ms = (nol->nol_timeout_ms - diff_ms); 265 else 266 diff_ms = 0; 267 remaining_sec = diff_ms / 1000; /* Convert to seconds */ 268 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 269 "nol:%d channel=%d MHz width=%d MHz time left=%u seconds nol start_us=%llu", 270 i++, nol->nol_freq, 271 nol->nol_chwidth, 272 remaining_sec, 273 nol->nol_start_us); 274 nol = nol->nol_next; 275 } 276 } 277 278 void dfs_print_nolhistory(struct wlan_dfs *dfs) 279 { 280 struct dfs_channel *chan_list; 281 int i, j; 282 int nchans; 283 284 if (!dfs) { 285 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 286 return; 287 } 288 289 nchans = dfs_get_num_chans(); 290 291 chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); 292 if (!chan_list) 293 return; 294 295 utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, 296 (void *)chan_list, &nchans); 297 if (!nchans) { 298 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 299 qdf_mem_free(chan_list); 300 return; 301 } 302 303 for (i = 0, j = 0; i < nchans; i++, j++) 304 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 305 "nolhistory = %d channel = %d MHz", 306 j, chan_list[i].dfs_ch_freq); 307 308 qdf_mem_free(chan_list); 309 } 310 311 void dfs_get_nol(struct wlan_dfs *dfs, 312 struct dfsreq_nolelem *dfs_nol, 313 int *nchan) 314 { 315 struct dfs_nolelem *nol; 316 317 *nchan = 0; 318 319 if (!dfs) { 320 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 321 return; 322 } 323 324 nol = dfs->dfs_nol; 325 while (nol) { 326 dfs_nol[*nchan].nol_freq = nol->nol_freq; 327 dfs_nol[*nchan].nol_chwidth = nol->nol_chwidth; 328 dfs_nol[*nchan].nol_start_us = nol->nol_start_us; 329 dfs_nol[*nchan].nol_timeout_ms = nol->nol_timeout_ms; 330 ++(*nchan); 331 nol = nol->nol_next; 332 } 333 } 334 335 #ifdef CONFIG_CHAN_FREQ_API 336 void dfs_set_nol(struct wlan_dfs *dfs, 337 struct dfsreq_nolelem *dfs_nol, 338 int nchan) 339 { 340 #define TIME_IN_MS 1000 341 uint32_t nol_time_lft_ms; 342 struct dfs_channel chan; 343 int i; 344 345 if (!dfs) { 346 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 347 return; 348 } 349 350 for (i = 0; i < nchan; i++) { 351 nol_time_lft_ms = qdf_do_div(qdf_get_monotonic_boottime() - 352 dfs_nol[i].nol_start_us, 1000); 353 354 if (nol_time_lft_ms < dfs_nol[i].nol_timeout_ms) { 355 chan.dfs_ch_freq = dfs_nol[i].nol_freq; 356 chan.dfs_ch_flags = 0; 357 chan.dfs_ch_flagext = 0; 358 nol_time_lft_ms = 359 (dfs_nol[i].nol_timeout_ms - nol_time_lft_ms); 360 361 DFS_NOL_ADD_CHAN_LOCKED(dfs, chan.dfs_ch_freq, 362 (nol_time_lft_ms / TIME_IN_MS)); 363 utils_dfs_reg_update_nol_chan_for_freq( 364 dfs->dfs_pdev_obj, 365 &chan.dfs_ch_freq, 366 1, DFS_NOL_SET); 367 } 368 } 369 #undef TIME_IN_MS 370 dfs_nol_update(dfs); 371 } 372 #else 373 #endif 374 375 void dfs_nol_addchan(struct wlan_dfs *dfs, 376 uint16_t freq, 377 uint32_t dfs_nol_timeout) 378 { 379 #define TIME_IN_MS 1000 380 #define TIME_IN_US (TIME_IN_MS * 1000) 381 struct dfs_nolelem *nol, *elem, *prev; 382 /* For now, assume all events are 20MHz wide. */ 383 int ch_width = 20; 384 385 if (!dfs) { 386 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 387 return; 388 } 389 nol = dfs->dfs_nol; 390 prev = dfs->dfs_nol; 391 elem = NULL; 392 while (nol) { 393 if ((nol->nol_freq == freq) && 394 (nol->nol_chwidth == ch_width)) { 395 nol->nol_start_us = qdf_get_monotonic_boottime(); 396 nol->nol_timeout_ms = dfs_nol_timeout * TIME_IN_MS; 397 398 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 399 "Update OS Ticks for NOL %d MHz / %d MHz", 400 nol->nol_freq, nol->nol_chwidth); 401 qdf_hrtimer_cancel(&nol->nol_timer); 402 qdf_hrtimer_start(&nol->nol_timer, 403 qdf_time_ms_to_ktime( 404 nol->nol_timeout_ms), 405 QDF_HRTIMER_MODE_REL); 406 return; 407 } 408 prev = nol; 409 nol = nol->nol_next; 410 } 411 412 /* Add a new element to the NOL. */ 413 elem = (struct dfs_nolelem *)qdf_mem_malloc(sizeof(struct dfs_nolelem)); 414 if (!elem) 415 goto bad; 416 417 qdf_mem_zero(elem, sizeof(*elem)); 418 elem->nol_dfs = dfs; 419 elem->nol_freq = freq; 420 elem->nol_chwidth = ch_width; 421 elem->nol_start_us = qdf_get_monotonic_boottime(); 422 elem->nol_timeout_ms = dfs_nol_timeout*TIME_IN_MS; 423 elem->nol_next = NULL; 424 if (prev) { 425 prev->nol_next = elem; 426 } else { 427 /* This is the first element in the NOL. */ 428 dfs->dfs_nol = elem; 429 } 430 431 qdf_hrtimer_init(&elem->nol_timer, dfs_remove_from_nol, 432 QDF_CLOCK_MONOTONIC, QDF_HRTIMER_MODE_REL, 433 QDF_CONTEXT_HARDWARE); 434 qdf_create_work(NULL, 435 &elem->nol_timer_completion_work, 436 dfs_process_noltimeout_completion, 437 elem); 438 qdf_hrtimer_start(&elem->nol_timer, 439 qdf_time_ms_to_ktime(dfs_nol_timeout * TIME_IN_MS), 440 QDF_HRTIMER_MODE_REL); 441 442 /* Update the NOL counter. */ 443 dfs->dfs_nol_count++; 444 445 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 446 "new NOL channel %d MHz / %d MHz", 447 elem->nol_freq, elem->nol_chwidth); 448 return; 449 450 bad: 451 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL | WLAN_DEBUG_DFS, 452 "failed to allocate memory for nol entry"); 453 454 #undef TIME_IN_MS 455 #undef TIME_IN_US 456 } 457 458 void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, 459 uint32_t *nol_chfreq, 460 uint32_t *nol_chwidth, 461 int index) 462 { 463 if (!dfs_nol) 464 return; 465 466 *nol_chfreq = dfs_nol[index].nol_freq; 467 *nol_chwidth = dfs_nol[index].nol_chwidth; 468 } 469 470 void dfs_nol_update(struct wlan_dfs *dfs) 471 { 472 struct dfsreq_nolelem *dfs_nol; 473 int nlen; 474 475 if (!dfs->dfs_nol_count) { 476 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "dfs_nol_count is zero"); 477 dfs_mlme_clist_update(dfs->dfs_pdev_obj, NULL, 0); 478 return; 479 } 480 481 /* 482 * Allocate enough entries to store the NOL. At least on Linux 483 * (don't ask why), if you allocate a 0 entry array, the 484 * returned pointer is 0x10. Make sure you're aware of this 485 * when you start debugging. 486 */ 487 dfs_nol = (struct dfsreq_nolelem *)qdf_mem_malloc( 488 sizeof(struct dfsreq_nolelem) * dfs->dfs_nol_count); 489 490 /* 491 * XXX TODO: if this fails, just schedule a task to retry 492 * updating the NOL at a later stage. That way the NOL 493 * update _DOES_ happen - hopefully the failure was just 494 * temporary. 495 */ 496 if (!dfs_nol) 497 return; 498 499 DFS_GET_NOL_LOCKED(dfs, dfs_nol, &nlen); 500 501 /* Be suitably paranoid for now. */ 502 if (nlen != dfs->dfs_nol_count) 503 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "nlen (%d) != dfs->dfs_nol_count (%d)!", 504 nlen, dfs->dfs_nol_count); 505 506 /* 507 * Call the driver layer to have it recalculate the NOL flags 508 * for each driver/umac channel. If the list is empty, pass 509 * NULL instead of dfs_nol. The operating system may have some 510 * special representation for "malloc a 0 byte memory region" 511 * - for example, Linux 2.6.38-13 (ubuntu) returns 0x10 rather 512 * than a valid allocation (and is likely not NULL so the 513 * pointer doesn't match NULL checks in any later code. 514 */ 515 dfs_mlme_clist_update(dfs->dfs_pdev_obj, 516 (nlen > 0) ? dfs_nol : NULL, 517 nlen); 518 519 qdf_mem_free(dfs_nol); 520 } 521 522 void dfs_nol_free_list(struct wlan_dfs *dfs) 523 { 524 struct dfs_nolelem *nol = dfs->dfs_nol, *prev; 525 526 while (nol) { 527 prev = nol; 528 nol = nol->nol_next; 529 qdf_mem_free(prev); 530 /* Update the NOL counter. */ 531 dfs->dfs_nol_count--; 532 533 if (dfs->dfs_nol_count < 0) { 534 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0"); 535 ASSERT(0); 536 } 537 } 538 539 dfs->dfs_nol = NULL; 540 } 541 542 #ifdef CONFIG_CHAN_FREQ_API 543 void dfs_nol_timer_cleanup(struct wlan_dfs *dfs) 544 { 545 struct dfs_nolelem *nol; 546 uint16_t nol_freq; 547 548 while (true) { 549 WLAN_DFSNOL_LOCK(dfs); 550 551 nol = dfs->dfs_nol; 552 if (nol) { 553 dfs->dfs_nol = nol->nol_next; 554 dfs->dfs_nol_count--; 555 nol_freq = nol->nol_freq; 556 WLAN_DFSNOL_UNLOCK(dfs); 557 utils_dfs_reg_update_nol_chan_for_freq( 558 dfs->dfs_pdev_obj, 559 &nol_freq, 560 1, 561 DFS_NOL_RESET); 562 qdf_hrtimer_kill(&nol->nol_timer); 563 qdf_flush_work(&nol->nol_timer_completion_work); 564 qdf_destroy_work(NULL, 565 &nol->nol_timer_completion_work); 566 qdf_mem_free(nol); 567 } else { 568 WLAN_DFSNOL_UNLOCK(dfs); 569 break; 570 } 571 } 572 } 573 #endif 574 575 void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs) 576 { 577 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 578 } 579 580 int dfs_get_use_nol(struct wlan_dfs *dfs) 581 { 582 return dfs->dfs_use_nol; 583 } 584 585 int dfs_get_nol_timeout(struct wlan_dfs *dfs) 586 { 587 return dfs->wlan_dfs_nol_timeout; 588 } 589 590 void dfs_getnol(struct wlan_dfs *dfs, void *dfs_nolinfo) 591 { 592 struct dfsreq_nolinfo *nolinfo = (struct dfsreq_nolinfo *)dfs_nolinfo; 593 594 DFS_GET_NOL_LOCKED(dfs, nolinfo->dfs_nol, &(nolinfo->dfs_ch_nchans)); 595 } 596 597 #if !defined(MOBILE_DFS_SUPPORT) 598 #ifdef CONFIG_CHAN_FREQ_API 599 void dfs_clear_nolhistory(struct wlan_dfs *dfs) 600 { 601 struct dfs_channel *chan_list; 602 int nchans; 603 bool sta_opmode; 604 int i; 605 qdf_freq_t *nol_freq_list = NULL; 606 uint32_t num_nol_history_chans; 607 608 if (!dfs->dfs_is_stadfs_enabled) 609 return; 610 611 sta_opmode = dfs_mlme_is_opmode_sta(dfs->dfs_pdev_obj); 612 if (!sta_opmode) 613 return; 614 615 nchans = dfs_get_num_chans(); 616 617 if (!nchans) { 618 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 619 return; 620 } 621 622 chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); 623 if (!chan_list) 624 return; 625 626 utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, 627 (void *)chan_list, 628 &num_nol_history_chans); 629 630 if (!num_nol_history_chans) { 631 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 632 qdf_mem_free(chan_list); 633 return; 634 } 635 636 if (num_nol_history_chans > nchans) 637 num_nol_history_chans = nchans; 638 639 nol_freq_list = 640 qdf_mem_malloc(num_nol_history_chans * sizeof(qdf_freq_t)); 641 642 if (!nol_freq_list) { 643 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "Unable to alloc memory for freq list"); 644 qdf_mem_free(chan_list); 645 return; 646 } 647 648 for (i = 0; i < num_nol_history_chans; i++) 649 nol_freq_list[i] = chan_list[i].dfs_ch_freq; 650 651 utils_dfs_reg_update_nol_history_chan_for_freq(dfs->dfs_pdev_obj, 652 nol_freq_list, 653 num_nol_history_chans, 654 DFS_NOL_HISTORY_RESET); 655 qdf_mem_free(chan_list); 656 qdf_mem_free(nol_freq_list); 657 } 658 #endif 659 #endif 660 661 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) && \ 662 defined(CONFIG_CHAN_FREQ_API) 663 void dfs_remove_spoof_channel_from_nol(struct wlan_dfs *dfs) 664 { 665 struct dfs_nolelem *nol; 666 uint16_t freq_list[MAX_20MHZ_SUBCHANS]; 667 int i, nchans = 0; 668 669 nchans = dfs_get_bonding_channels_for_freq(dfs, 670 &dfs->dfs_radar_found_chan, 671 SEG_ID_PRIMARY, 672 DETECTOR_ID_0, 673 freq_list); 674 675 WLAN_DFSNOL_LOCK(dfs); 676 for (i = 0; i < nchans && i < MAX_20MHZ_SUBCHANS; i++) { 677 nol = dfs->dfs_nol; 678 while (nol) { 679 if (nol->nol_freq == freq_list[i]) { 680 qdf_hrtimer_start(&nol->nol_timer, 681 qdf_time_ms_to_ktime(0), 682 QDF_HRTIMER_MODE_REL); 683 break; 684 } 685 nol = nol->nol_next; 686 } 687 } 688 WLAN_DFSNOL_UNLOCK(dfs); 689 690 utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, 691 freq_list, nchans, DFS_NOL_RESET); 692 } 693 #endif 694