1 /* 2 * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2002-2010, Atheros Communications Inc. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 /** 19 * DOC: This file contains NOL related functionality, NOL being the non 20 * occupancy list. After radar has been detected in a particular channel, 21 * the channel cannot be used for a period of 30 minutes which is called 22 * the non occupancy. The NOL is basically a list of all the channels that 23 * radar has been detected on. Each channel has a 30 minute timer associated 24 * with it. This file contains the functionality to add a channel to the NOL, 25 * the NOL timer function and the functionality to remove a channel from the 26 * NOL when its time is up. 27 */ 28 29 #include "../dfs.h" 30 #include "../dfs_channel.h" 31 #include "../dfs_ioctl_private.h" 32 #include "../dfs_internal.h" 33 #include <qdf_time.h> 34 #include <wlan_dfs_mlme_api.h> 35 #include <wlan_dfs_utils_api.h> 36 #include <wlan_reg_services_api.h> 37 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 38 #include "../dfs_process_radar_found_ind.h" 39 #include "../dfs_partial_offload_radar.h" 40 #endif 41 42 void dfs_set_update_nol_flag(struct wlan_dfs *dfs, bool val) 43 { 44 dfs->update_nol = val; 45 } 46 47 bool dfs_get_update_nol_flag(struct wlan_dfs *dfs) 48 { 49 return dfs->update_nol; 50 } 51 52 /** 53 * dfs_nol_timeout() - NOL timeout function. 54 * 55 * Clears the WLAN_CHAN_DFS_RADAR_FOUND flag for the NOL timeout channel. 56 */ 57 static os_timer_func(dfs_nol_timeout) 58 { 59 struct dfs_channel *c = NULL, lc; 60 unsigned long oldest, now; 61 struct wlan_dfs *dfs = NULL; 62 int i; 63 int nchans = 0; 64 65 c = &lc; 66 67 OS_GET_TIMER_ARG(dfs, struct wlan_dfs *); 68 dfs_mlme_get_dfs_ch_nchans(dfs->dfs_pdev_obj, &nchans); 69 70 now = oldest = qdf_system_ticks(); 71 for (i = 0; i < nchans; i++) { 72 dfs_mlme_get_dfs_ch_channels(dfs->dfs_pdev_obj, 73 &(c->dfs_ch_freq), 74 &(c->dfs_ch_flags), 75 &(c->dfs_ch_flagext), 76 &(c->dfs_ch_ieee), 77 &(c->dfs_ch_vhtop_ch_freq_seg1), 78 &(c->dfs_ch_vhtop_ch_freq_seg2), 79 i); 80 if (WLAN_IS_CHAN_RADAR(c)) { 81 if (qdf_system_time_after_eq(now, 82 dfs->dfs_nol_event[i] + 83 dfs_get_nol_timeout(dfs))) { 84 c->dfs_ch_flagext &= 85 ~WLAN_CHAN_DFS_RADAR_FOUND; 86 if (c->dfs_ch_flags & 87 WLAN_CHAN_DFS_RADAR) { 88 /* 89 * NB: do this here so we get only one 90 * msg instead of one for every channel 91 * table entry. 92 */ 93 dfs_debug(dfs, WLAN_DEBUG_DFS, 94 "radar on channel %u (%u MHz) cleared after timeout", 95 96 c->dfs_ch_ieee, 97 c->dfs_ch_freq); 98 } 99 } else if (dfs->dfs_nol_event[i] < oldest) 100 oldest = dfs->dfs_nol_event[i]; 101 } 102 } 103 if (oldest != now) { 104 /* Arrange to process next channel up for a status change. */ 105 qdf_timer_mod(&dfs->dfs_nol_timer, 106 dfs_get_nol_timeout(dfs) - 107 qdf_system_ticks_to_msecs(qdf_system_ticks())); 108 } 109 } 110 111 /** 112 * dfs_nol_elem_free_work_cb - Free NOL element 113 * 114 * Free the NOL element memory 115 */ 116 static void dfs_nol_elem_free_work_cb(void *context) 117 { 118 struct wlan_dfs *dfs = (struct wlan_dfs *)context; 119 struct dfs_nolelem *tmp_nol_entry, *nol_entry; 120 121 WLAN_DFSNOL_LOCK(dfs); 122 if (!TAILQ_EMPTY(&dfs->dfs_nol_free_list)) 123 TAILQ_FOREACH_SAFE(nol_entry, 124 &dfs->dfs_nol_free_list, 125 nolelem_list, 126 tmp_nol_entry) { 127 TAILQ_REMOVE(&dfs->dfs_nol_free_list, 128 nol_entry, nolelem_list); 129 qdf_mem_free(nol_entry); 130 } 131 WLAN_DFSNOL_UNLOCK(dfs); 132 } 133 134 void dfs_nol_timer_init(struct wlan_dfs *dfs) 135 { 136 qdf_timer_init(NULL, 137 &(dfs->dfs_nol_timer), 138 dfs_nol_timeout, 139 (void *)(dfs), 140 QDF_TIMER_TYPE_WAKE_APPS); 141 } 142 143 void dfs_nol_attach(struct wlan_dfs *dfs) 144 { 145 dfs->wlan_dfs_nol_timeout = DFS_NOL_TIMEOUT_S; 146 dfs_nol_timer_init(dfs); 147 qdf_create_work(NULL, &dfs->dfs_nol_elem_free_work, 148 dfs_nol_elem_free_work_cb, dfs); 149 TAILQ_INIT(&dfs->dfs_nol_free_list); 150 dfs->dfs_use_nol = 1; 151 WLAN_DFSNOL_LOCK_CREATE(dfs); 152 } 153 154 void dfs_nol_detach(struct wlan_dfs *dfs) 155 { 156 dfs_nol_timer_cleanup(dfs); 157 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 158 qdf_destroy_work(NULL, &dfs->dfs_nol_elem_free_work); 159 WLAN_DFSNOL_LOCK_DESTROY(dfs); 160 } 161 162 /** 163 * dfs_nol_delete() - Delete the given frequency/chwidth from the NOL. 164 * @dfs: Pointer to wlan_dfs structure. 165 * @delfreq: Freq to delete. 166 * @delchwidth: Channel width to delete. 167 */ 168 static void dfs_nol_delete(struct wlan_dfs *dfs, 169 uint16_t delfreq, 170 uint16_t delchwidth) 171 { 172 struct dfs_nolelem *nol, **prev_next; 173 174 if (!dfs) { 175 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 176 return; 177 } 178 179 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 180 "remove channel=%d/%d MHz from NOL", 181 delfreq, delchwidth); 182 prev_next = &(dfs->dfs_nol); 183 nol = dfs->dfs_nol; 184 while (nol != NULL) { 185 if (nol->nol_freq == delfreq && 186 nol->nol_chwidth == delchwidth) { 187 *prev_next = nol->nol_next; 188 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 189 "removing channel %d/%dMHz from NOL tstamp=%d", 190 nol->nol_freq, 191 nol->nol_chwidth, 192 (qdf_system_ticks_to_msecs 193 (qdf_system_ticks()) / 1000)); 194 TAILQ_INSERT_TAIL(&dfs->dfs_nol_free_list, 195 nol, nolelem_list); 196 nol = *prev_next; 197 198 /* Update the NOL counter. */ 199 dfs->dfs_nol_count--; 200 201 /* Be paranoid! */ 202 if (dfs->dfs_nol_count < 0) { 203 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0; eek!"); 204 dfs->dfs_nol_count = 0; 205 } 206 207 } else { 208 prev_next = &(nol->nol_next); 209 nol = nol->nol_next; 210 } 211 } 212 } 213 214 /** 215 * dfs_remove_from_nol() - Remove the freq from NOL list. 216 * 217 * When NOL times out, this function removes the channel from NOL list. 218 */ 219 static os_timer_func(dfs_remove_from_nol) 220 { 221 struct dfs_nolelem *nol_arg; 222 struct wlan_dfs *dfs; 223 uint16_t delfreq; 224 uint16_t delchwidth; 225 uint8_t chan; 226 227 OS_GET_TIMER_ARG(nol_arg, struct dfs_nolelem *); 228 229 dfs = nol_arg->nol_dfs; 230 delfreq = nol_arg->nol_freq; 231 delchwidth = nol_arg->nol_chwidth; 232 233 /* Delete the given NOL entry. */ 234 DFS_NOL_DELETE_CHAN_LOCKED(dfs, delfreq, delchwidth); 235 236 /* Update the wireless stack with the new NOL. */ 237 dfs_nol_update(dfs); 238 239 dfs_mlme_nol_timeout_notification(dfs->dfs_pdev_obj); 240 chan = utils_dfs_freq_to_chan(delfreq); 241 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 242 "remove channel %d from nol", chan); 243 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 244 &chan, 1, DFS_NOL_RESET); 245 utils_dfs_save_nol(dfs->dfs_pdev_obj); 246 247 /* 248 * Free the NOL element in a thread. This is to avoid freeing the 249 * timer object from within timer callback function . The nol element 250 * contains the timer Object. 251 */ 252 qdf_sched_work(NULL, &dfs->dfs_nol_elem_free_work); 253 } 254 255 void dfs_print_nol(struct wlan_dfs *dfs) 256 { 257 struct dfs_nolelem *nol; 258 int i = 0; 259 uint32_t diff_ms, remaining_sec; 260 261 if (!dfs) { 262 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 263 return; 264 } 265 266 nol = dfs->dfs_nol; 267 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "NOL"); 268 while (nol != NULL) { 269 diff_ms = qdf_system_ticks_to_msecs(qdf_system_ticks() - 270 nol->nol_start_ticks); 271 diff_ms = (nol->nol_timeout_ms - diff_ms); 272 remaining_sec = diff_ms / 1000; /* Convert to seconds */ 273 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 274 "nol:%d channel=%d MHz width=%d MHz time left=%u seconds nol starttick=%llu", 275 i++, nol->nol_freq, 276 nol->nol_chwidth, 277 remaining_sec, 278 (uint64_t)nol->nol_start_ticks); 279 nol = nol->nol_next; 280 } 281 } 282 283 void dfs_print_nolhistory(struct wlan_dfs *dfs) 284 { 285 struct dfs_channel *c, lc; 286 int i, j = 0; 287 int nchans = 0; 288 289 if (!dfs) { 290 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 291 return; 292 } 293 294 c = &lc; 295 296 dfs_mlme_get_dfs_ch_nchans(dfs->dfs_pdev_obj, &nchans); 297 for (i = 0; i < nchans; i++) { 298 dfs_mlme_get_dfs_ch_channels(dfs->dfs_pdev_obj, 299 &(c->dfs_ch_freq), 300 &(c->dfs_ch_flags), 301 &(c->dfs_ch_flagext), 302 &(c->dfs_ch_ieee), 303 &(c->dfs_ch_vhtop_ch_freq_seg1), 304 &(c->dfs_ch_vhtop_ch_freq_seg2), 305 i); 306 if (WLAN_IS_CHAN_HISTORY_RADAR(c)) { 307 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 308 "nolhistory:%d channel=%d MHz Flags=%llx", 309 j, c->dfs_ch_freq, c->dfs_ch_flags); 310 j++; 311 } 312 } 313 } 314 315 void dfs_get_nol(struct wlan_dfs *dfs, 316 struct dfsreq_nolelem *dfs_nol, 317 int *nchan) 318 { 319 struct dfs_nolelem *nol; 320 321 *nchan = 0; 322 323 if (!dfs) { 324 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 325 return; 326 } 327 328 nol = dfs->dfs_nol; 329 while (nol != NULL) { 330 dfs_nol[*nchan].nol_freq = nol->nol_freq; 331 dfs_nol[*nchan].nol_chwidth = nol->nol_chwidth; 332 dfs_nol[*nchan].nol_start_ticks = nol->nol_start_ticks; 333 dfs_nol[*nchan].nol_timeout_ms = nol->nol_timeout_ms; 334 ++(*nchan); 335 nol = nol->nol_next; 336 } 337 } 338 339 void dfs_set_nol(struct wlan_dfs *dfs, 340 struct dfsreq_nolelem *dfs_nol, 341 int nchan) 342 { 343 #define TIME_IN_MS 1000 344 uint32_t nol_time_left_ms; 345 struct dfs_channel chan; 346 int i; 347 uint8_t chan_num; 348 349 if (!dfs) { 350 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 351 return; 352 } 353 354 for (i = 0; i < nchan; i++) { 355 nol_time_left_ms = 356 qdf_system_ticks_to_msecs(qdf_system_ticks() - 357 dfs_nol[i].nol_start_ticks); 358 359 if (nol_time_left_ms < dfs_nol[i].nol_timeout_ms) { 360 chan.dfs_ch_freq = dfs_nol[i].nol_freq; 361 chan.dfs_ch_flags = 0; 362 chan.dfs_ch_flagext = 0; 363 nol_time_left_ms = 364 (dfs_nol[i].nol_timeout_ms - nol_time_left_ms); 365 366 DFS_NOL_ADD_CHAN_LOCKED(dfs, chan.dfs_ch_freq, 367 (nol_time_left_ms / TIME_IN_MS)); 368 chan_num = utils_dfs_freq_to_chan(chan.dfs_ch_freq); 369 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 370 &chan_num, 1, DFS_NOL_SET); 371 } 372 } 373 #undef TIME_IN_MS 374 dfs_nol_update(dfs); 375 } 376 377 void dfs_nol_addchan(struct wlan_dfs *dfs, 378 uint16_t freq, 379 uint32_t dfs_nol_timeout) 380 { 381 #define TIME_IN_MS 1000 382 #define TIME_IN_US (TIME_IN_MS * 1000) 383 struct dfs_nolelem *nol, *elem, *prev; 384 /* For now, assume all events are 20MHz wide. */ 385 int ch_width = 20; 386 387 if (!dfs) { 388 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 389 return; 390 } 391 nol = dfs->dfs_nol; 392 prev = dfs->dfs_nol; 393 elem = NULL; 394 while (nol != NULL) { 395 if ((nol->nol_freq == freq) && 396 (nol->nol_chwidth == ch_width)) { 397 nol->nol_start_ticks = qdf_system_ticks(); 398 nol->nol_timeout_ms = dfs_nol_timeout * TIME_IN_MS; 399 400 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 401 "Update OS Ticks for NOL %d MHz / %d MHz", 402 nol->nol_freq, nol->nol_chwidth); 403 404 qdf_timer_stop(&nol->nol_timer); 405 qdf_timer_mod(&nol->nol_timer, 406 dfs_nol_timeout * TIME_IN_MS); 407 return; 408 } 409 prev = nol; 410 nol = nol->nol_next; 411 } 412 413 /* Add a new element to the NOL. */ 414 elem = (struct dfs_nolelem *)qdf_mem_malloc(sizeof(struct dfs_nolelem)); 415 if (!elem) 416 goto bad; 417 418 qdf_mem_zero(elem, sizeof(*elem)); 419 elem->nol_dfs = dfs; 420 elem->nol_freq = freq; 421 elem->nol_chwidth = ch_width; 422 elem->nol_start_ticks = qdf_system_ticks(); 423 elem->nol_timeout_ms = dfs_nol_timeout*TIME_IN_MS; 424 elem->nol_next = NULL; 425 if (prev) { 426 prev->nol_next = elem; 427 } else { 428 /* This is the first element in the NOL. */ 429 dfs->dfs_nol = elem; 430 } 431 432 qdf_timer_init(NULL, 433 &elem->nol_timer, dfs_remove_from_nol, 434 elem, QDF_TIMER_TYPE_WAKE_APPS); 435 qdf_timer_mod(&elem->nol_timer, dfs_nol_timeout * TIME_IN_MS); 436 437 /* Update the NOL counter. */ 438 dfs->dfs_nol_count++; 439 440 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 441 "new NOL channel %d MHz / %d MHz", 442 elem->nol_freq, elem->nol_chwidth); 443 return; 444 445 bad: 446 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL | WLAN_DEBUG_DFS, 447 "failed to allocate memory for nol entry"); 448 449 #undef TIME_IN_MS 450 #undef TIME_IN_US 451 } 452 453 void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, 454 uint32_t *nol_chfreq, 455 uint32_t *nol_chwidth, 456 int index) 457 { 458 if (!dfs_nol) 459 return; 460 461 *nol_chfreq = dfs_nol[index].nol_freq; 462 *nol_chwidth = dfs_nol[index].nol_chwidth; 463 } 464 465 void dfs_nol_update(struct wlan_dfs *dfs) 466 { 467 struct dfsreq_nolelem *dfs_nol; 468 int nlen; 469 470 /* 471 * Allocate enough entries to store the NOL. At least on Linux 472 * (don't ask why), if you allocate a 0 entry array, the 473 * returned pointer is 0x10. Make sure you're aware of this 474 * when you start debugging. 475 */ 476 dfs_nol = (struct dfsreq_nolelem *)qdf_mem_malloc( 477 sizeof(struct dfsreq_nolelem) * dfs->dfs_nol_count); 478 479 if (!dfs_nol) { 480 /* 481 * XXX TODO: if this fails, just schedule a task to retry 482 * updating the NOL at a later stage. That way the NOL 483 * update _DOES_ happen - hopefully the failure was just 484 * temporary. 485 */ 486 dfs_alert(dfs, WLAN_DEBUG_DFS_ALWAYS, "failed to allocate NOL update memory!"); 487 return; 488 } 489 490 DFS_GET_NOL_LOCKED(dfs, dfs_nol, &nlen); 491 492 /* Be suitably paranoid for now. */ 493 if (nlen != dfs->dfs_nol_count) 494 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "nlen (%d) != dfs->dfs_nol_count (%d)!", 495 nlen, dfs->dfs_nol_count); 496 497 /* 498 * Call the driver layer to have it recalculate the NOL flags 499 * for each driver/umac channel. If the list is empty, pass 500 * NULL instead of dfs_nol. The operating system may have some 501 * special representation for "malloc a 0 byte memory region" 502 * - for example, Linux 2.6.38-13 (ubuntu) returns 0x10 rather 503 * than a valid allocation (and is likely not NULL so the 504 * pointer doesn't match NULL checks in any later code. 505 */ 506 dfs_mlme_clist_update(dfs->dfs_pdev_obj, 507 (nlen > 0) ? dfs_nol : NULL, 508 nlen); 509 510 qdf_mem_free(dfs_nol); 511 } 512 513 void dfs_nol_free_list(struct wlan_dfs *dfs) 514 { 515 struct dfs_nolelem *nol = dfs->dfs_nol, *prev; 516 517 while (nol) { 518 prev = nol; 519 nol = nol->nol_next; 520 qdf_mem_free(prev); 521 /* Update the NOL counter. */ 522 dfs->dfs_nol_count--; 523 524 if (dfs->dfs_nol_count < 0) { 525 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0"); 526 ASSERT(0); 527 } 528 } 529 530 dfs->dfs_nol = NULL; 531 } 532 533 void dfs_nol_timer_cleanup(struct wlan_dfs *dfs) 534 { 535 struct dfs_nolelem *nol; 536 537 WLAN_DFSNOL_LOCK(dfs); 538 nol = dfs->dfs_nol; 539 while (nol) { 540 dfs->dfs_nol = nol->nol_next; 541 dfs->dfs_nol_count--; 542 543 if (!qdf_timer_stop(&nol->nol_timer)) { 544 /* 545 * Unlock is required so that when we sync with the 546 * nol_timeout timer we do not run into deadlock. 547 */ 548 WLAN_DFSNOL_UNLOCK(dfs); 549 qdf_timer_sync_cancel(&(nol->nol_timer)); 550 WLAN_DFSNOL_LOCK(dfs); 551 } 552 553 qdf_mem_free(nol); 554 nol = dfs->dfs_nol; 555 } 556 WLAN_DFSNOL_UNLOCK(dfs); 557 } 558 559 void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs) 560 { 561 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 562 } 563 564 int dfs_get_use_nol(struct wlan_dfs *dfs) 565 { 566 return dfs->dfs_use_nol; 567 } 568 569 int dfs_get_nol_timeout(struct wlan_dfs *dfs) 570 { 571 return dfs->wlan_dfs_nol_timeout; 572 } 573 574 void dfs_getnol(struct wlan_dfs *dfs, void *dfs_nolinfo) 575 { 576 struct dfsreq_nolinfo *nolinfo = (struct dfsreq_nolinfo *)dfs_nolinfo; 577 578 DFS_GET_NOL_LOCKED(dfs, nolinfo->dfs_nol, &(nolinfo->dfs_ch_nchans)); 579 } 580 581 void dfs_clear_nolhistory(struct wlan_dfs *dfs) 582 { 583 /* We should have a dfs_clear_nolhistory API from Regdomain. */ 584 struct dfs_channel *c, lc; 585 int i; 586 int nchans = 0; 587 588 c = &lc; 589 dfs_mlme_get_dfs_ch_nchans(dfs->dfs_pdev_obj, &nchans); 590 for (i = 0; i < nchans; i++) { 591 dfs_mlme_get_dfs_ch_channels(dfs->dfs_pdev_obj, 592 &(c->dfs_ch_freq), 593 &(c->dfs_ch_flags), 594 &(c->dfs_ch_flagext), 595 &(c->dfs_ch_ieee), 596 &(c->dfs_ch_vhtop_ch_freq_seg1), 597 &(c->dfs_ch_vhtop_ch_freq_seg2), 598 i); 599 WLAN_CHAN_CLR_HISTORY_RADAR(c); 600 } 601 } 602 603 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 604 void dfs_remove_spoof_channel_from_nol(struct wlan_dfs *dfs) 605 { 606 struct dfs_nolelem *nol; 607 uint8_t channels[NUM_CHANNELS_160MHZ]; 608 int i, nchans = 0; 609 610 nchans = dfs_get_bonding_channels(&dfs->dfs_radar_found_chan, 0, 611 channels); 612 613 WLAN_DFSNOL_LOCK(dfs); 614 for (i = 0; i < nchans && i < NUM_CHANNELS_160MHZ; i++) { 615 nol = dfs->dfs_nol; 616 while (nol) { 617 if (nol->nol_freq == (uint16_t)utils_dfs_chan_to_freq( 618 channels[i])) { 619 OS_SET_TIMER(&nol->nol_timer, 0); 620 break; 621 } 622 nol = nol->nol_next; 623 } 624 } 625 WLAN_DFSNOL_UNLOCK(dfs); 626 627 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 628 channels, nchans, DFS_NOL_RESET); 629 } 630 #endif 631