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