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 *nol_head; 120 121 while (true) { 122 WLAN_DFSNOL_LOCK(dfs); 123 124 nol_head = TAILQ_FIRST(&dfs->dfs_nol_free_list); 125 if (nol_head) { 126 TAILQ_REMOVE(&dfs->dfs_nol_free_list, nol_head, 127 nolelem_list); 128 WLAN_DFSNOL_UNLOCK(dfs); 129 130 qdf_timer_free(&nol_head->nol_timer); 131 qdf_mem_free(nol_head); 132 } else { 133 WLAN_DFSNOL_UNLOCK(dfs); 134 break; 135 } 136 } 137 } 138 139 void dfs_nol_timer_init(struct wlan_dfs *dfs) 140 { 141 qdf_timer_init(NULL, 142 &(dfs->dfs_nol_timer), 143 dfs_nol_timeout, 144 (void *)(dfs), 145 QDF_TIMER_TYPE_WAKE_APPS); 146 } 147 148 void dfs_nol_attach(struct wlan_dfs *dfs) 149 { 150 dfs->wlan_dfs_nol_timeout = DFS_NOL_TIMEOUT_S; 151 dfs_nol_timer_init(dfs); 152 qdf_create_work(NULL, &dfs->dfs_nol_elem_free_work, 153 dfs_nol_elem_free_work_cb, dfs); 154 TAILQ_INIT(&dfs->dfs_nol_free_list); 155 dfs->dfs_use_nol = 1; 156 WLAN_DFSNOL_LOCK_CREATE(dfs); 157 } 158 159 void dfs_nol_detach(struct wlan_dfs *dfs) 160 { 161 dfs_nol_timer_cleanup(dfs); 162 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 163 qdf_destroy_work(NULL, &dfs->dfs_nol_elem_free_work); 164 WLAN_DFSNOL_LOCK_DESTROY(dfs); 165 } 166 167 void dfs_nol_timer_detach(struct wlan_dfs *dfs) 168 { 169 qdf_timer_free(&dfs->dfs_nol_timer); 170 } 171 172 /** 173 * dfs_nol_delete() - Delete the given frequency/chwidth from the NOL. 174 * @dfs: Pointer to wlan_dfs structure. 175 * @delfreq: Freq to delete. 176 * @delchwidth: Channel width to delete. 177 */ 178 static void dfs_nol_delete(struct wlan_dfs *dfs, 179 uint16_t delfreq, 180 uint16_t delchwidth) 181 { 182 struct dfs_nolelem *nol, **prev_next; 183 184 if (!dfs) { 185 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 186 return; 187 } 188 189 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 190 "remove channel=%d/%d MHz from NOL", 191 delfreq, delchwidth); 192 prev_next = &(dfs->dfs_nol); 193 nol = dfs->dfs_nol; 194 while (nol != NULL) { 195 if (nol->nol_freq == delfreq && 196 nol->nol_chwidth == delchwidth) { 197 *prev_next = nol->nol_next; 198 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 199 "removing channel %d/%dMHz from NOL tstamp=%d", 200 nol->nol_freq, 201 nol->nol_chwidth, 202 (qdf_system_ticks_to_msecs 203 (qdf_system_ticks()) / 1000)); 204 TAILQ_INSERT_TAIL(&dfs->dfs_nol_free_list, 205 nol, nolelem_list); 206 nol = *prev_next; 207 208 /* Update the NOL counter. */ 209 dfs->dfs_nol_count--; 210 211 /* Be paranoid! */ 212 if (dfs->dfs_nol_count < 0) { 213 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0; eek!"); 214 dfs->dfs_nol_count = 0; 215 } 216 217 } else { 218 prev_next = &(nol->nol_next); 219 nol = nol->nol_next; 220 } 221 } 222 } 223 224 /** 225 * dfs_remove_from_nol() - Remove the freq from NOL list. 226 * 227 * When NOL times out, this function removes the channel from NOL list. 228 */ 229 static os_timer_func(dfs_remove_from_nol) 230 { 231 struct dfs_nolelem *nol_arg; 232 struct wlan_dfs *dfs; 233 uint16_t delfreq; 234 uint16_t delchwidth; 235 uint8_t chan; 236 237 OS_GET_TIMER_ARG(nol_arg, struct dfs_nolelem *); 238 239 dfs = nol_arg->nol_dfs; 240 delfreq = nol_arg->nol_freq; 241 delchwidth = nol_arg->nol_chwidth; 242 243 /* Delete the given NOL entry. */ 244 DFS_NOL_DELETE_CHAN_LOCKED(dfs, delfreq, delchwidth); 245 246 /* Update the wireless stack with the new NOL. */ 247 dfs_nol_update(dfs); 248 249 dfs_mlme_nol_timeout_notification(dfs->dfs_pdev_obj); 250 chan = utils_dfs_freq_to_chan(delfreq); 251 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 252 "remove channel %d from nol", chan); 253 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 254 &chan, 1, DFS_NOL_RESET); 255 utils_dfs_save_nol(dfs->dfs_pdev_obj); 256 257 /* 258 * Free the NOL element in a thread. This is to avoid freeing the 259 * timer object from within timer callback function . The nol element 260 * contains the timer Object. 261 */ 262 qdf_sched_work(NULL, &dfs->dfs_nol_elem_free_work); 263 } 264 265 void dfs_print_nol(struct wlan_dfs *dfs) 266 { 267 struct dfs_nolelem *nol; 268 int i = 0; 269 uint32_t diff_ms, remaining_sec; 270 271 if (!dfs) { 272 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 273 return; 274 } 275 276 nol = dfs->dfs_nol; 277 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "NOL"); 278 while (nol != NULL) { 279 diff_ms = qdf_system_ticks_to_msecs(qdf_system_ticks() - 280 nol->nol_start_ticks); 281 diff_ms = (nol->nol_timeout_ms - diff_ms); 282 remaining_sec = diff_ms / 1000; /* Convert to seconds */ 283 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 284 "nol:%d channel=%d MHz width=%d MHz time left=%u seconds nol starttick=%llu", 285 i++, nol->nol_freq, 286 nol->nol_chwidth, 287 remaining_sec, 288 (uint64_t)nol->nol_start_ticks); 289 nol = nol->nol_next; 290 } 291 } 292 293 void dfs_print_nolhistory(struct wlan_dfs *dfs) 294 { 295 struct dfs_channel *c, lc; 296 int i, j = 0; 297 int nchans = 0; 298 299 if (!dfs) { 300 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 301 return; 302 } 303 304 c = &lc; 305 306 dfs_mlme_get_dfs_ch_nchans(dfs->dfs_pdev_obj, &nchans); 307 for (i = 0; i < nchans; i++) { 308 dfs_mlme_get_dfs_ch_channels(dfs->dfs_pdev_obj, 309 &(c->dfs_ch_freq), 310 &(c->dfs_ch_flags), 311 &(c->dfs_ch_flagext), 312 &(c->dfs_ch_ieee), 313 &(c->dfs_ch_vhtop_ch_freq_seg1), 314 &(c->dfs_ch_vhtop_ch_freq_seg2), 315 i); 316 if (WLAN_IS_CHAN_HISTORY_RADAR(c)) { 317 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 318 "nolhistory:%d channel=%d MHz Flags=%llx", 319 j, c->dfs_ch_freq, c->dfs_ch_flags); 320 j++; 321 } 322 } 323 } 324 325 void dfs_get_nol(struct wlan_dfs *dfs, 326 struct dfsreq_nolelem *dfs_nol, 327 int *nchan) 328 { 329 struct dfs_nolelem *nol; 330 331 *nchan = 0; 332 333 if (!dfs) { 334 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 335 return; 336 } 337 338 nol = dfs->dfs_nol; 339 while (nol != NULL) { 340 dfs_nol[*nchan].nol_freq = nol->nol_freq; 341 dfs_nol[*nchan].nol_chwidth = nol->nol_chwidth; 342 dfs_nol[*nchan].nol_start_ticks = nol->nol_start_ticks; 343 dfs_nol[*nchan].nol_timeout_ms = nol->nol_timeout_ms; 344 ++(*nchan); 345 nol = nol->nol_next; 346 } 347 } 348 349 void dfs_set_nol(struct wlan_dfs *dfs, 350 struct dfsreq_nolelem *dfs_nol, 351 int nchan) 352 { 353 #define TIME_IN_MS 1000 354 uint32_t nol_time_left_ms; 355 struct dfs_channel chan; 356 int i; 357 uint8_t chan_num; 358 359 if (!dfs) { 360 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 361 return; 362 } 363 364 for (i = 0; i < nchan; i++) { 365 nol_time_left_ms = 366 qdf_system_ticks_to_msecs(qdf_system_ticks() - 367 dfs_nol[i].nol_start_ticks); 368 369 if (nol_time_left_ms < dfs_nol[i].nol_timeout_ms) { 370 chan.dfs_ch_freq = dfs_nol[i].nol_freq; 371 chan.dfs_ch_flags = 0; 372 chan.dfs_ch_flagext = 0; 373 nol_time_left_ms = 374 (dfs_nol[i].nol_timeout_ms - nol_time_left_ms); 375 376 DFS_NOL_ADD_CHAN_LOCKED(dfs, chan.dfs_ch_freq, 377 (nol_time_left_ms / TIME_IN_MS)); 378 chan_num = utils_dfs_freq_to_chan(chan.dfs_ch_freq); 379 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 380 &chan_num, 1, DFS_NOL_SET); 381 } 382 } 383 #undef TIME_IN_MS 384 dfs_nol_update(dfs); 385 } 386 387 void dfs_nol_addchan(struct wlan_dfs *dfs, 388 uint16_t freq, 389 uint32_t dfs_nol_timeout) 390 { 391 #define TIME_IN_MS 1000 392 #define TIME_IN_US (TIME_IN_MS * 1000) 393 struct dfs_nolelem *nol, *elem, *prev; 394 /* For now, assume all events are 20MHz wide. */ 395 int ch_width = 20; 396 397 if (!dfs) { 398 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 399 return; 400 } 401 nol = dfs->dfs_nol; 402 prev = dfs->dfs_nol; 403 elem = NULL; 404 while (nol != NULL) { 405 if ((nol->nol_freq == freq) && 406 (nol->nol_chwidth == ch_width)) { 407 nol->nol_start_ticks = qdf_system_ticks(); 408 nol->nol_timeout_ms = dfs_nol_timeout * TIME_IN_MS; 409 410 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 411 "Update OS Ticks for NOL %d MHz / %d MHz", 412 nol->nol_freq, nol->nol_chwidth); 413 414 qdf_timer_stop(&nol->nol_timer); 415 qdf_timer_mod(&nol->nol_timer, 416 dfs_nol_timeout * TIME_IN_MS); 417 return; 418 } 419 prev = nol; 420 nol = nol->nol_next; 421 } 422 423 /* Add a new element to the NOL. */ 424 elem = (struct dfs_nolelem *)qdf_mem_malloc(sizeof(struct dfs_nolelem)); 425 if (!elem) 426 goto bad; 427 428 qdf_mem_zero(elem, sizeof(*elem)); 429 elem->nol_dfs = dfs; 430 elem->nol_freq = freq; 431 elem->nol_chwidth = ch_width; 432 elem->nol_start_ticks = qdf_system_ticks(); 433 elem->nol_timeout_ms = dfs_nol_timeout*TIME_IN_MS; 434 elem->nol_next = NULL; 435 if (prev) { 436 prev->nol_next = elem; 437 } else { 438 /* This is the first element in the NOL. */ 439 dfs->dfs_nol = elem; 440 } 441 442 qdf_timer_init(NULL, 443 &elem->nol_timer, dfs_remove_from_nol, 444 elem, QDF_TIMER_TYPE_WAKE_APPS); 445 qdf_timer_mod(&elem->nol_timer, dfs_nol_timeout * TIME_IN_MS); 446 447 /* Update the NOL counter. */ 448 dfs->dfs_nol_count++; 449 450 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 451 "new NOL channel %d MHz / %d MHz", 452 elem->nol_freq, elem->nol_chwidth); 453 return; 454 455 bad: 456 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL | WLAN_DEBUG_DFS, 457 "failed to allocate memory for nol entry"); 458 459 #undef TIME_IN_MS 460 #undef TIME_IN_US 461 } 462 463 void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, 464 uint32_t *nol_chfreq, 465 uint32_t *nol_chwidth, 466 int index) 467 { 468 if (!dfs_nol) 469 return; 470 471 *nol_chfreq = dfs_nol[index].nol_freq; 472 *nol_chwidth = dfs_nol[index].nol_chwidth; 473 } 474 475 void dfs_nol_update(struct wlan_dfs *dfs) 476 { 477 struct dfsreq_nolelem *dfs_nol; 478 int nlen; 479 480 if (!dfs->dfs_nol_count) { 481 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "dfs_nol_count is zero"); 482 return; 483 } 484 485 /* 486 * Allocate enough entries to store the NOL. At least on Linux 487 * (don't ask why), if you allocate a 0 entry array, the 488 * returned pointer is 0x10. Make sure you're aware of this 489 * when you start debugging. 490 */ 491 dfs_nol = (struct dfsreq_nolelem *)qdf_mem_malloc( 492 sizeof(struct dfsreq_nolelem) * dfs->dfs_nol_count); 493 494 if (!dfs_nol) { 495 /* 496 * XXX TODO: if this fails, just schedule a task to retry 497 * updating the NOL at a later stage. That way the NOL 498 * update _DOES_ happen - hopefully the failure was just 499 * temporary. 500 */ 501 dfs_alert(dfs, WLAN_DEBUG_DFS_ALWAYS, "failed to allocate NOL update memory!"); 502 return; 503 } 504 505 DFS_GET_NOL_LOCKED(dfs, dfs_nol, &nlen); 506 507 /* Be suitably paranoid for now. */ 508 if (nlen != dfs->dfs_nol_count) 509 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "nlen (%d) != dfs->dfs_nol_count (%d)!", 510 nlen, dfs->dfs_nol_count); 511 512 /* 513 * Call the driver layer to have it recalculate the NOL flags 514 * for each driver/umac channel. If the list is empty, pass 515 * NULL instead of dfs_nol. The operating system may have some 516 * special representation for "malloc a 0 byte memory region" 517 * - for example, Linux 2.6.38-13 (ubuntu) returns 0x10 rather 518 * than a valid allocation (and is likely not NULL so the 519 * pointer doesn't match NULL checks in any later code. 520 */ 521 dfs_mlme_clist_update(dfs->dfs_pdev_obj, 522 (nlen > 0) ? dfs_nol : NULL, 523 nlen); 524 525 qdf_mem_free(dfs_nol); 526 } 527 528 void dfs_nol_free_list(struct wlan_dfs *dfs) 529 { 530 struct dfs_nolelem *nol = dfs->dfs_nol, *prev; 531 532 while (nol) { 533 prev = nol; 534 nol = nol->nol_next; 535 qdf_mem_free(prev); 536 /* Update the NOL counter. */ 537 dfs->dfs_nol_count--; 538 539 if (dfs->dfs_nol_count < 0) { 540 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0"); 541 ASSERT(0); 542 } 543 } 544 545 dfs->dfs_nol = NULL; 546 } 547 548 void dfs_nol_timer_cleanup(struct wlan_dfs *dfs) 549 { 550 struct dfs_nolelem *nol; 551 552 while (true) { 553 WLAN_DFSNOL_LOCK(dfs); 554 555 nol = dfs->dfs_nol; 556 if (nol) { 557 dfs->dfs_nol = nol->nol_next; 558 dfs->dfs_nol_count--; 559 WLAN_DFSNOL_UNLOCK(dfs); 560 561 qdf_timer_free(&nol->nol_timer); 562 qdf_mem_free(nol); 563 } else { 564 WLAN_DFSNOL_UNLOCK(dfs); 565 break; 566 } 567 } 568 } 569 570 void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs) 571 { 572 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 573 } 574 575 int dfs_get_use_nol(struct wlan_dfs *dfs) 576 { 577 return dfs->dfs_use_nol; 578 } 579 580 int dfs_get_nol_timeout(struct wlan_dfs *dfs) 581 { 582 return dfs->wlan_dfs_nol_timeout; 583 } 584 585 void dfs_getnol(struct wlan_dfs *dfs, void *dfs_nolinfo) 586 { 587 struct dfsreq_nolinfo *nolinfo = (struct dfsreq_nolinfo *)dfs_nolinfo; 588 589 DFS_GET_NOL_LOCKED(dfs, nolinfo->dfs_nol, &(nolinfo->dfs_ch_nchans)); 590 } 591 592 void dfs_clear_nolhistory(struct wlan_dfs *dfs) 593 { 594 /* We should have a dfs_clear_nolhistory API from Regdomain. */ 595 struct dfs_channel *c, lc; 596 int i; 597 int nchans = 0; 598 599 c = &lc; 600 dfs_mlme_get_dfs_ch_nchans(dfs->dfs_pdev_obj, &nchans); 601 for (i = 0; i < nchans; i++) { 602 dfs_mlme_get_dfs_ch_channels(dfs->dfs_pdev_obj, 603 &(c->dfs_ch_freq), 604 &(c->dfs_ch_flags), 605 &(c->dfs_ch_flagext), 606 &(c->dfs_ch_ieee), 607 &(c->dfs_ch_vhtop_ch_freq_seg1), 608 &(c->dfs_ch_vhtop_ch_freq_seg2), 609 i); 610 WLAN_CHAN_CLR_HISTORY_RADAR(c); 611 } 612 } 613 614 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 615 void dfs_remove_spoof_channel_from_nol(struct wlan_dfs *dfs) 616 { 617 struct dfs_nolelem *nol; 618 uint8_t channels[NUM_CHANNELS_160MHZ]; 619 int i, nchans = 0; 620 621 nchans = dfs_get_bonding_channels(dfs, &dfs->dfs_radar_found_chan, 0, 622 channels); 623 624 WLAN_DFSNOL_LOCK(dfs); 625 for (i = 0; i < nchans && i < NUM_CHANNELS_160MHZ; i++) { 626 nol = dfs->dfs_nol; 627 while (nol) { 628 if (nol->nol_freq == (uint16_t)utils_dfs_chan_to_freq( 629 channels[i])) { 630 OS_SET_TIMER(&nol->nol_timer, 0); 631 break; 632 } 633 nol = nol->nol_next; 634 } 635 } 636 WLAN_DFSNOL_UNLOCK(dfs); 637 638 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 639 channels, nchans, DFS_NOL_RESET); 640 } 641 #endif 642