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