1 /* 2 * Copyright (c) 2016-2019 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_objmgr_vdev_obj.h> 36 #include <wlan_dfs_utils_api.h> 37 #include <wlan_reg_services_api.h> 38 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 39 #include "../dfs_process_radar_found_ind.h" 40 #include "../dfs_partial_offload_radar.h" 41 #endif 42 43 void dfs_set_update_nol_flag(struct wlan_dfs *dfs, bool val) 44 { 45 dfs->update_nol = val; 46 } 47 48 bool dfs_get_update_nol_flag(struct wlan_dfs *dfs) 49 { 50 return dfs->update_nol; 51 } 52 53 /** 54 * dfs_nol_timeout() - NOL timeout function. 55 * 56 * Clears the WLAN_CHAN_DFS_RADAR_FOUND flag for the NOL timeout channel. 57 */ 58 static os_timer_func(dfs_nol_timeout) 59 { 60 struct dfs_channel *c = NULL, lc; 61 unsigned long oldest, now; 62 struct wlan_dfs *dfs = NULL; 63 int i; 64 int nchans = 0; 65 66 c = &lc; 67 68 OS_GET_TIMER_ARG(dfs, struct wlan_dfs *); 69 dfs_mlme_get_dfs_ch_nchans(dfs->dfs_pdev_obj, &nchans); 70 71 now = oldest = qdf_system_ticks(); 72 for (i = 0; i < nchans; i++) { 73 dfs_mlme_get_dfs_ch_channels(dfs->dfs_pdev_obj, 74 &(c->dfs_ch_freq), 75 &(c->dfs_ch_flags), 76 &(c->dfs_ch_flagext), 77 &(c->dfs_ch_ieee), 78 &(c->dfs_ch_vhtop_ch_freq_seg1), 79 &(c->dfs_ch_vhtop_ch_freq_seg2), 80 i); 81 if (WLAN_IS_CHAN_RADAR(c)) { 82 if (qdf_system_time_after_eq(now, 83 dfs->dfs_nol_event[i] + 84 dfs_get_nol_timeout(dfs))) { 85 c->dfs_ch_flagext &= 86 ~WLAN_CHAN_DFS_RADAR_FOUND; 87 if (c->dfs_ch_flags & 88 WLAN_CHAN_DFS_RADAR) { 89 /* 90 * NB: do this here so we get only one 91 * msg instead of one for every channel 92 * table entry. 93 */ 94 dfs_debug(dfs, WLAN_DEBUG_DFS, 95 "radar on channel %u (%u MHz) cleared after timeout", 96 97 c->dfs_ch_ieee, 98 c->dfs_ch_freq); 99 } 100 } else if (dfs->dfs_nol_event[i] < oldest) 101 oldest = dfs->dfs_nol_event[i]; 102 } 103 } 104 if (oldest != now) { 105 /* Arrange to process next channel up for a status change. */ 106 qdf_timer_mod(&dfs->dfs_nol_timer, 107 dfs_get_nol_timeout(dfs) - 108 qdf_system_ticks_to_msecs(qdf_system_ticks())); 109 } 110 } 111 112 /** 113 * dfs_nol_elem_free_work_cb - Free NOL element 114 * 115 * Free the NOL element memory 116 */ 117 static void dfs_nol_elem_free_work_cb(void *context) 118 { 119 struct wlan_dfs *dfs = (struct wlan_dfs *)context; 120 struct dfs_nolelem *nol_head; 121 122 while (true) { 123 WLAN_DFSNOL_LOCK(dfs); 124 125 nol_head = TAILQ_FIRST(&dfs->dfs_nol_free_list); 126 if (nol_head) { 127 TAILQ_REMOVE(&dfs->dfs_nol_free_list, nol_head, 128 nolelem_list); 129 WLAN_DFSNOL_UNLOCK(dfs); 130 131 qdf_timer_free(&nol_head->nol_timer); 132 qdf_mem_free(nol_head); 133 } else { 134 WLAN_DFSNOL_UNLOCK(dfs); 135 break; 136 } 137 } 138 } 139 140 void dfs_nol_timer_init(struct wlan_dfs *dfs) 141 { 142 qdf_timer_init(NULL, 143 &(dfs->dfs_nol_timer), 144 dfs_nol_timeout, 145 (void *)(dfs), 146 QDF_TIMER_TYPE_WAKE_APPS); 147 } 148 149 void dfs_nol_attach(struct wlan_dfs *dfs) 150 { 151 dfs->wlan_dfs_nol_timeout = DFS_NOL_TIMEOUT_S; 152 dfs_nol_timer_init(dfs); 153 qdf_create_work(NULL, &dfs->dfs_nol_elem_free_work, 154 dfs_nol_elem_free_work_cb, dfs); 155 TAILQ_INIT(&dfs->dfs_nol_free_list); 156 dfs->dfs_use_nol = 1; 157 WLAN_DFSNOL_LOCK_CREATE(dfs); 158 } 159 160 void dfs_nol_detach(struct wlan_dfs *dfs) 161 { 162 dfs_nol_timer_cleanup(dfs); 163 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 164 qdf_destroy_work(NULL, &dfs->dfs_nol_elem_free_work); 165 WLAN_DFSNOL_LOCK_DESTROY(dfs); 166 } 167 168 void dfs_nol_timer_detach(struct wlan_dfs *dfs) 169 { 170 qdf_timer_free(&dfs->dfs_nol_timer); 171 } 172 173 /** 174 * dfs_nol_delete() - Delete the given frequency/chwidth from the NOL. 175 * @dfs: Pointer to wlan_dfs structure. 176 * @delfreq: Freq to delete. 177 * @delchwidth: Channel width to delete. 178 */ 179 static void dfs_nol_delete(struct wlan_dfs *dfs, 180 uint16_t delfreq, 181 uint16_t delchwidth) 182 { 183 struct dfs_nolelem *nol, **prev_next; 184 185 if (!dfs) { 186 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 187 return; 188 } 189 190 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 191 "remove channel=%d/%d MHz from NOL", 192 delfreq, delchwidth); 193 prev_next = &(dfs->dfs_nol); 194 nol = dfs->dfs_nol; 195 while (nol != NULL) { 196 if (nol->nol_freq == delfreq && 197 nol->nol_chwidth == delchwidth) { 198 *prev_next = nol->nol_next; 199 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 200 "removing channel %d/%dMHz from NOL tstamp=%d", 201 nol->nol_freq, 202 nol->nol_chwidth, 203 (qdf_system_ticks_to_msecs 204 (qdf_system_ticks()) / 1000)); 205 TAILQ_INSERT_TAIL(&dfs->dfs_nol_free_list, 206 nol, nolelem_list); 207 nol = *prev_next; 208 209 /* Update the NOL counter. */ 210 dfs->dfs_nol_count--; 211 212 /* Be paranoid! */ 213 if (dfs->dfs_nol_count < 0) { 214 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0; eek!"); 215 dfs->dfs_nol_count = 0; 216 } 217 218 } else { 219 prev_next = &(nol->nol_next); 220 nol = nol->nol_next; 221 } 222 } 223 } 224 225 /** 226 * dfs_remove_from_nol() - Remove the freq from NOL list. 227 * 228 * When NOL times out, this function removes the channel from NOL list. 229 */ 230 static os_timer_func(dfs_remove_from_nol) 231 { 232 struct dfs_nolelem *nol_arg; 233 struct wlan_dfs *dfs; 234 uint16_t delfreq; 235 uint16_t delchwidth; 236 uint8_t chan; 237 238 OS_GET_TIMER_ARG(nol_arg, struct dfs_nolelem *); 239 240 dfs = nol_arg->nol_dfs; 241 delfreq = nol_arg->nol_freq; 242 delchwidth = nol_arg->nol_chwidth; 243 244 /* Delete the given NOL entry. */ 245 DFS_NOL_DELETE_CHAN_LOCKED(dfs, delfreq, delchwidth); 246 247 /* Update the wireless stack with the new NOL. */ 248 dfs_nol_update(dfs); 249 250 dfs_mlme_nol_timeout_notification(dfs->dfs_pdev_obj); 251 chan = utils_dfs_freq_to_chan(delfreq); 252 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 253 "remove channel %d from nol", chan); 254 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 255 &chan, 1, DFS_NOL_RESET); 256 utils_dfs_save_nol(dfs->dfs_pdev_obj); 257 258 /* 259 * Free the NOL element in a thread. This is to avoid freeing the 260 * timer object from within timer callback function . The nol element 261 * contains the timer Object. 262 */ 263 qdf_sched_work(NULL, &dfs->dfs_nol_elem_free_work); 264 } 265 266 void dfs_print_nol(struct wlan_dfs *dfs) 267 { 268 struct dfs_nolelem *nol; 269 int i = 0; 270 uint32_t diff_ms, remaining_sec; 271 272 if (!dfs) { 273 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 274 return; 275 } 276 277 nol = dfs->dfs_nol; 278 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "NOL"); 279 while (nol != NULL) { 280 diff_ms = qdf_system_ticks_to_msecs(qdf_system_ticks() - 281 nol->nol_start_ticks); 282 diff_ms = (nol->nol_timeout_ms - diff_ms); 283 remaining_sec = diff_ms / 1000; /* Convert to seconds */ 284 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 285 "nol:%d channel=%d MHz width=%d MHz time left=%u seconds nol starttick=%llu", 286 i++, nol->nol_freq, 287 nol->nol_chwidth, 288 remaining_sec, 289 (uint64_t)nol->nol_start_ticks); 290 nol = nol->nol_next; 291 } 292 } 293 294 void dfs_print_nolhistory(struct wlan_dfs *dfs) 295 { 296 struct dfs_channel *chan_list; 297 int i, j; 298 int nchans; 299 300 if (!dfs) { 301 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 302 return; 303 } 304 305 nchans = dfs_get_num_chans(); 306 307 chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); 308 if (!chan_list) 309 return; 310 311 utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, 312 (void *)chan_list, &nchans); 313 if (!nchans) { 314 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 315 qdf_mem_free(chan_list); 316 return; 317 } 318 319 for (i = 0, j = 0; i < nchans; i++, j++) 320 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 321 "nolhistory = %d channel = %d MHz", 322 j, chan_list[i].dfs_ch_freq); 323 324 qdf_mem_free(chan_list); 325 } 326 327 void dfs_get_nol(struct wlan_dfs *dfs, 328 struct dfsreq_nolelem *dfs_nol, 329 int *nchan) 330 { 331 struct dfs_nolelem *nol; 332 333 *nchan = 0; 334 335 if (!dfs) { 336 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 337 return; 338 } 339 340 nol = dfs->dfs_nol; 341 while (nol != NULL) { 342 dfs_nol[*nchan].nol_freq = nol->nol_freq; 343 dfs_nol[*nchan].nol_chwidth = nol->nol_chwidth; 344 dfs_nol[*nchan].nol_start_ticks = nol->nol_start_ticks; 345 dfs_nol[*nchan].nol_timeout_ms = nol->nol_timeout_ms; 346 ++(*nchan); 347 nol = nol->nol_next; 348 } 349 } 350 351 void dfs_set_nol(struct wlan_dfs *dfs, 352 struct dfsreq_nolelem *dfs_nol, 353 int nchan) 354 { 355 #define TIME_IN_MS 1000 356 uint32_t nol_time_left_ms; 357 struct dfs_channel chan; 358 int i; 359 uint8_t chan_num; 360 361 if (!dfs) { 362 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 363 return; 364 } 365 366 for (i = 0; i < nchan; i++) { 367 nol_time_left_ms = 368 qdf_system_ticks_to_msecs(qdf_system_ticks() - 369 dfs_nol[i].nol_start_ticks); 370 371 if (nol_time_left_ms < dfs_nol[i].nol_timeout_ms) { 372 chan.dfs_ch_freq = dfs_nol[i].nol_freq; 373 chan.dfs_ch_flags = 0; 374 chan.dfs_ch_flagext = 0; 375 nol_time_left_ms = 376 (dfs_nol[i].nol_timeout_ms - nol_time_left_ms); 377 378 DFS_NOL_ADD_CHAN_LOCKED(dfs, chan.dfs_ch_freq, 379 (nol_time_left_ms / TIME_IN_MS)); 380 chan_num = utils_dfs_freq_to_chan(chan.dfs_ch_freq); 381 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 382 &chan_num, 1, DFS_NOL_SET); 383 } 384 } 385 #undef TIME_IN_MS 386 dfs_nol_update(dfs); 387 } 388 389 void dfs_nol_addchan(struct wlan_dfs *dfs, 390 uint16_t freq, 391 uint32_t dfs_nol_timeout) 392 { 393 #define TIME_IN_MS 1000 394 #define TIME_IN_US (TIME_IN_MS * 1000) 395 struct dfs_nolelem *nol, *elem, *prev; 396 /* For now, assume all events are 20MHz wide. */ 397 int ch_width = 20; 398 399 if (!dfs) { 400 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 401 return; 402 } 403 nol = dfs->dfs_nol; 404 prev = dfs->dfs_nol; 405 elem = NULL; 406 while (nol != NULL) { 407 if ((nol->nol_freq == freq) && 408 (nol->nol_chwidth == ch_width)) { 409 nol->nol_start_ticks = qdf_system_ticks(); 410 nol->nol_timeout_ms = dfs_nol_timeout * TIME_IN_MS; 411 412 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 413 "Update OS Ticks for NOL %d MHz / %d MHz", 414 nol->nol_freq, nol->nol_chwidth); 415 416 qdf_timer_stop(&nol->nol_timer); 417 qdf_timer_mod(&nol->nol_timer, 418 dfs_nol_timeout * TIME_IN_MS); 419 return; 420 } 421 prev = nol; 422 nol = nol->nol_next; 423 } 424 425 /* Add a new element to the NOL. */ 426 elem = (struct dfs_nolelem *)qdf_mem_malloc(sizeof(struct dfs_nolelem)); 427 if (!elem) 428 goto bad; 429 430 qdf_mem_zero(elem, sizeof(*elem)); 431 elem->nol_dfs = dfs; 432 elem->nol_freq = freq; 433 elem->nol_chwidth = ch_width; 434 elem->nol_start_ticks = qdf_system_ticks(); 435 elem->nol_timeout_ms = dfs_nol_timeout*TIME_IN_MS; 436 elem->nol_next = NULL; 437 if (prev) { 438 prev->nol_next = elem; 439 } else { 440 /* This is the first element in the NOL. */ 441 dfs->dfs_nol = elem; 442 } 443 444 qdf_timer_init(NULL, 445 &elem->nol_timer, dfs_remove_from_nol, 446 elem, QDF_TIMER_TYPE_WAKE_APPS); 447 qdf_timer_mod(&elem->nol_timer, dfs_nol_timeout * TIME_IN_MS); 448 449 /* Update the NOL counter. */ 450 dfs->dfs_nol_count++; 451 452 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 453 "new NOL channel %d MHz / %d MHz", 454 elem->nol_freq, elem->nol_chwidth); 455 return; 456 457 bad: 458 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL | WLAN_DEBUG_DFS, 459 "failed to allocate memory for nol entry"); 460 461 #undef TIME_IN_MS 462 #undef TIME_IN_US 463 } 464 465 void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, 466 uint32_t *nol_chfreq, 467 uint32_t *nol_chwidth, 468 int index) 469 { 470 if (!dfs_nol) 471 return; 472 473 *nol_chfreq = dfs_nol[index].nol_freq; 474 *nol_chwidth = dfs_nol[index].nol_chwidth; 475 } 476 477 void dfs_nol_update(struct wlan_dfs *dfs) 478 { 479 struct dfsreq_nolelem *dfs_nol; 480 int nlen; 481 482 if (!dfs->dfs_nol_count) { 483 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "dfs_nol_count is zero"); 484 dfs_mlme_clist_update(dfs->dfs_pdev_obj, NULL, 0); 485 return; 486 } 487 488 /* 489 * Allocate enough entries to store the NOL. At least on Linux 490 * (don't ask why), if you allocate a 0 entry array, the 491 * returned pointer is 0x10. Make sure you're aware of this 492 * when you start debugging. 493 */ 494 dfs_nol = (struct dfsreq_nolelem *)qdf_mem_malloc( 495 sizeof(struct dfsreq_nolelem) * dfs->dfs_nol_count); 496 497 if (!dfs_nol) { 498 /* 499 * XXX TODO: if this fails, just schedule a task to retry 500 * updating the NOL at a later stage. That way the NOL 501 * update _DOES_ happen - hopefully the failure was just 502 * temporary. 503 */ 504 dfs_alert(dfs, WLAN_DEBUG_DFS_ALWAYS, "failed to allocate NOL update memory!"); 505 return; 506 } 507 508 DFS_GET_NOL_LOCKED(dfs, dfs_nol, &nlen); 509 510 /* Be suitably paranoid for now. */ 511 if (nlen != dfs->dfs_nol_count) 512 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "nlen (%d) != dfs->dfs_nol_count (%d)!", 513 nlen, dfs->dfs_nol_count); 514 515 /* 516 * Call the driver layer to have it recalculate the NOL flags 517 * for each driver/umac channel. If the list is empty, pass 518 * NULL instead of dfs_nol. The operating system may have some 519 * special representation for "malloc a 0 byte memory region" 520 * - for example, Linux 2.6.38-13 (ubuntu) returns 0x10 rather 521 * than a valid allocation (and is likely not NULL so the 522 * pointer doesn't match NULL checks in any later code. 523 */ 524 dfs_mlme_clist_update(dfs->dfs_pdev_obj, 525 (nlen > 0) ? dfs_nol : NULL, 526 nlen); 527 528 qdf_mem_free(dfs_nol); 529 } 530 531 void dfs_nol_free_list(struct wlan_dfs *dfs) 532 { 533 struct dfs_nolelem *nol = dfs->dfs_nol, *prev; 534 535 while (nol) { 536 prev = nol; 537 nol = nol->nol_next; 538 qdf_mem_free(prev); 539 /* Update the NOL counter. */ 540 dfs->dfs_nol_count--; 541 542 if (dfs->dfs_nol_count < 0) { 543 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0"); 544 ASSERT(0); 545 } 546 } 547 548 dfs->dfs_nol = NULL; 549 } 550 551 void dfs_nol_timer_cleanup(struct wlan_dfs *dfs) 552 { 553 struct dfs_nolelem *nol; 554 555 while (true) { 556 WLAN_DFSNOL_LOCK(dfs); 557 558 nol = dfs->dfs_nol; 559 if (nol) { 560 dfs->dfs_nol = nol->nol_next; 561 dfs->dfs_nol_count--; 562 WLAN_DFSNOL_UNLOCK(dfs); 563 564 qdf_timer_free(&nol->nol_timer); 565 qdf_mem_free(nol); 566 } else { 567 WLAN_DFSNOL_UNLOCK(dfs); 568 break; 569 } 570 } 571 } 572 573 void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs) 574 { 575 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 576 } 577 578 int dfs_get_use_nol(struct wlan_dfs *dfs) 579 { 580 return dfs->dfs_use_nol; 581 } 582 583 int dfs_get_nol_timeout(struct wlan_dfs *dfs) 584 { 585 return dfs->wlan_dfs_nol_timeout; 586 } 587 588 void dfs_getnol(struct wlan_dfs *dfs, void *dfs_nolinfo) 589 { 590 struct dfsreq_nolinfo *nolinfo = (struct dfsreq_nolinfo *)dfs_nolinfo; 591 592 DFS_GET_NOL_LOCKED(dfs, nolinfo->dfs_nol, &(nolinfo->dfs_ch_nchans)); 593 } 594 595 void dfs_clear_nolhistory(struct wlan_dfs *dfs) 596 { 597 struct dfs_channel *chan_list; 598 int nchans = 0; 599 bool sta_opmode; 600 601 if (!dfs->dfs_is_stadfs_enabled) 602 return; 603 604 sta_opmode = dfs_mlme_is_opmode_sta(dfs->dfs_pdev_obj); 605 if (!sta_opmode) 606 return; 607 608 nchans = dfs_get_num_chans(); 609 610 chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); 611 if (!chan_list) 612 return; 613 614 utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, 615 (void *)chan_list, &nchans); 616 if (!nchans) { 617 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 618 qdf_mem_free(chan_list); 619 return; 620 } 621 622 utils_dfs_reg_update_nol_history_ch(dfs->dfs_pdev_obj, 623 (void *)chan_list, nchans, 624 DFS_NOL_HISTORY_RESET); 625 626 qdf_mem_free(chan_list); 627 } 628 629 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 630 void dfs_remove_spoof_channel_from_nol(struct wlan_dfs *dfs) 631 { 632 struct dfs_nolelem *nol; 633 uint8_t channels[NUM_CHANNELS_160MHZ]; 634 int i, nchans = 0; 635 636 nchans = dfs_get_bonding_channels(dfs, &dfs->dfs_radar_found_chan, 0, 637 channels); 638 639 WLAN_DFSNOL_LOCK(dfs); 640 for (i = 0; i < nchans && i < NUM_CHANNELS_160MHZ; i++) { 641 nol = dfs->dfs_nol; 642 while (nol) { 643 if (nol->nol_freq == (uint16_t)utils_dfs_chan_to_freq( 644 channels[i])) { 645 OS_SET_TIMER(&nol->nol_timer, 0); 646 break; 647 } 648 nol = nol->nol_next; 649 } 650 } 651 WLAN_DFSNOL_UNLOCK(dfs); 652 653 utils_dfs_reg_update_nol_ch(dfs->dfs_pdev_obj, 654 channels, nchans, DFS_NOL_RESET); 655 } 656 #endif 657