1 /* 2 * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2002-2010, Atheros Communications Inc. 4 * Copyright (c) 2021-2023 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 * @context: work context (wlan_dfs) 59 * 60 * Free the NOL element memory 61 */ 62 static void dfs_nol_elem_free_work_cb(void *context) 63 { 64 struct wlan_dfs *dfs = (struct wlan_dfs *)context; 65 struct dfs_nolelem *nol_head; 66 67 while (true) { 68 WLAN_DFSNOL_LOCK(dfs); 69 70 nol_head = TAILQ_FIRST(&dfs->dfs_nol_free_list); 71 if (nol_head) { 72 TAILQ_REMOVE(&dfs->dfs_nol_free_list, nol_head, 73 nolelem_list); 74 WLAN_DFSNOL_UNLOCK(dfs); 75 qdf_hrtimer_kill(&nol_head->nol_timer); 76 qdf_mem_free(nol_head); 77 } else { 78 WLAN_DFSNOL_UNLOCK(dfs); 79 break; 80 } 81 } 82 } 83 84 void dfs_nol_attach(struct wlan_dfs *dfs) 85 { 86 dfs->wlan_dfs_nol_timeout = DFS_NOL_TIMEOUT_S; 87 qdf_create_work(NULL, &dfs->dfs_nol_elem_free_work, 88 dfs_nol_elem_free_work_cb, dfs); 89 TAILQ_INIT(&dfs->dfs_nol_free_list); 90 dfs->dfs_use_nol = 1; 91 WLAN_DFSNOL_LOCK_CREATE(dfs); 92 } 93 94 void dfs_nol_detach(struct wlan_dfs *dfs) 95 { 96 dfs_nol_timer_cleanup(dfs); 97 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 98 qdf_destroy_work(NULL, &dfs->dfs_nol_elem_free_work); 99 WLAN_DFSNOL_LOCK_DESTROY(dfs); 100 } 101 102 /** 103 * dfs_nol_delete() - Delete the given frequency/chwidth from the NOL. 104 * @dfs: Pointer to wlan_dfs structure. 105 * @delfreq: Freq to delete. 106 * @delchwidth: Channel width to delete. 107 */ 108 static void dfs_nol_delete(struct wlan_dfs *dfs, 109 uint16_t delfreq, 110 uint16_t delchwidth) 111 { 112 struct dfs_nolelem *nol, **prev_next; 113 114 if (!dfs) { 115 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 116 return; 117 } 118 119 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 120 "remove channel=%d/%d MHz from NOL", 121 delfreq, delchwidth); 122 prev_next = &(dfs->dfs_nol); 123 nol = dfs->dfs_nol; 124 while (nol) { 125 if (nol->nol_freq == delfreq && 126 nol->nol_chwidth == delchwidth) { 127 *prev_next = nol->nol_next; 128 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 129 "removing channel %d/%dMHz from NOL tstamp=%d", 130 nol->nol_freq, 131 nol->nol_chwidth, 132 (qdf_system_ticks_to_msecs 133 (qdf_system_ticks()) / 1000)); 134 TAILQ_INSERT_TAIL(&dfs->dfs_nol_free_list, 135 nol, nolelem_list); 136 nol = *prev_next; 137 138 /* Update the NOL counter. */ 139 dfs->dfs_nol_count--; 140 141 /* Be paranoid! */ 142 if (dfs->dfs_nol_count < 0) { 143 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0; eek!"); 144 dfs->dfs_nol_count = 0; 145 } 146 147 } else { 148 prev_next = &(nol->nol_next); 149 nol = nol->nol_next; 150 } 151 } 152 } 153 154 /** 155 * dfs_remove_from_nol() - Remove the freq from NOL list. 156 * @arg: argument of the timer 157 * 158 * When NOL times out, this function removes the channel from NOL list. 159 */ 160 #ifdef CONFIG_CHAN_FREQ_API 161 162 static enum qdf_hrtimer_restart_status 163 dfs_remove_from_nol(qdf_hrtimer_data_t *arg) 164 { 165 struct wlan_dfs *dfs; 166 uint16_t delfreq; 167 uint16_t delchwidth; 168 uint8_t chan; 169 struct dfs_nolelem *nol_arg; 170 171 nol_arg = container_of(arg, struct dfs_nolelem, nol_timer); 172 dfs = nol_arg->nol_dfs; 173 delfreq = nol_arg->nol_freq; 174 delchwidth = nol_arg->nol_chwidth; 175 176 /* Delete the given NOL entry. */ 177 DFS_NOL_DELETE_CHAN_LOCKED(dfs, delfreq, delchwidth); 178 179 utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, 180 &delfreq, 1, DFS_NOL_RESET); 181 /* Update the wireless stack with the new NOL. */ 182 dfs_nol_update(dfs); 183 184 dfs_mlme_nol_timeout_notification(dfs->dfs_pdev_obj); 185 chan = utils_dfs_freq_to_chan(delfreq); 186 utils_dfs_deliver_event(dfs->dfs_pdev_obj, delfreq, 187 WLAN_EV_NOL_FINISHED); 188 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 189 "remove channel %d from nol", chan); 190 utils_dfs_unmark_precac_nol_for_freq(dfs->dfs_pdev_obj, delfreq); 191 192 utils_dfs_save_nol(dfs->dfs_pdev_obj); 193 194 /* 195 * Check if a channel is configured by the user to which we have to 196 * switch after it's NOL expiry. If that is the case, change 197 * channel immediately. 198 * 199 * If a channel switch is required (indicated by the return value of 200 * dfs_switch_to_postnol_chan_if_nol_expired), return from this function 201 * without posting Start event to Agile SM. That will be taken care 202 * of, after VAP start. 203 */ 204 if (dfs_switch_to_postnol_chan_if_nol_expired(dfs)) 205 return QDF_HRTIMER_NORESTART; 206 /* 207 * If BW Expand is enabled, check if the user configured channel is 208 * available. If it is available, STOP the AGILE SM and Restart the 209 * AGILE SM. This will clear any old preCAC/RCAC chan information. 210 */ 211 if (dfs_bwexpand_find_usr_cnf_chan(dfs)) { 212 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 213 DFS_AGILE_SM_EV_AGILE_STOP); 214 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 215 DFS_AGILE_SM_EV_AGILE_START); 216 } else { 217 /* 218 * In case of interCAC feature, check if the user configured 219 * desired channel is RCAC done or not. 220 * (AP operating on an intermediate channel as desired channel 221 * is still not CAC done). If the RCAC of the desired channel 222 * was interrupted by radar, initiate RCAC on NOL expiry 223 * of the channel. 224 * 225 * If rcac is not started by dfs_restart_rcac_on_nol_expiry() 226 * API initiate rcac start here. 227 */ 228 if (!dfs_restart_rcac_on_nol_expiry(dfs)) 229 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 230 DFS_AGILE_SM_EV_AGILE_START); 231 } 232 return QDF_HRTIMER_NORESTART; 233 } 234 #endif 235 236 void dfs_print_nol(struct wlan_dfs *dfs) 237 { 238 struct dfs_nolelem *nol; 239 int i = 0; 240 uint32_t diff_ms, remaining_sec; 241 242 if (!dfs) { 243 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 244 return; 245 } 246 247 nol = dfs->dfs_nol; 248 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "NOL"); 249 while (nol) { 250 diff_ms = qdf_do_div(qdf_get_monotonic_boottime() - 251 nol->nol_start_us, 1000); 252 if (nol->nol_timeout_ms > diff_ms) 253 diff_ms = (nol->nol_timeout_ms - diff_ms); 254 else 255 diff_ms = 0; 256 remaining_sec = diff_ms / 1000; /* Convert to seconds */ 257 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 258 "nol:%d channel=%d MHz width=%d MHz time left=%u seconds nol start_us=%llu", 259 i++, nol->nol_freq, 260 nol->nol_chwidth, 261 remaining_sec, 262 nol->nol_start_us); 263 nol = nol->nol_next; 264 } 265 } 266 267 void dfs_print_nolhistory(struct wlan_dfs *dfs) 268 { 269 struct dfs_channel *chan_list; 270 int i, j; 271 int nchans; 272 273 if (!dfs) { 274 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 275 return; 276 } 277 278 nchans = dfs_get_num_chans(); 279 280 chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); 281 if (!chan_list) 282 return; 283 284 utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, 285 (void *)chan_list, &nchans); 286 if (!nchans) { 287 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 288 qdf_mem_free(chan_list); 289 return; 290 } 291 292 for (i = 0, j = 0; i < nchans; i++, j++) 293 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 294 "nolhistory = %d channel = %d MHz", 295 j, chan_list[i].dfs_ch_freq); 296 297 qdf_mem_free(chan_list); 298 } 299 300 void dfs_get_nol(struct wlan_dfs *dfs, 301 struct dfsreq_nolelem *dfs_nol, 302 int *nchan) 303 { 304 struct dfs_nolelem *nol; 305 306 *nchan = 0; 307 308 if (!dfs) { 309 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 310 return; 311 } 312 313 nol = dfs->dfs_nol; 314 while (nol) { 315 dfs_nol[*nchan].nol_freq = nol->nol_freq; 316 dfs_nol[*nchan].nol_chwidth = nol->nol_chwidth; 317 dfs_nol[*nchan].nol_start_us = nol->nol_start_us; 318 dfs_nol[*nchan].nol_timeout_ms = nol->nol_timeout_ms; 319 ++(*nchan); 320 nol = nol->nol_next; 321 } 322 } 323 324 #ifdef CONFIG_CHAN_FREQ_API 325 void dfs_set_nol(struct wlan_dfs *dfs, 326 struct dfsreq_nolelem *dfs_nol, 327 int nchan) 328 { 329 #define TIME_IN_MS 1000 330 uint32_t nol_time_lft_ms; 331 struct dfs_channel chan; 332 int i; 333 334 if (!dfs) { 335 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 336 return; 337 } 338 339 for (i = 0; i < nchan; i++) { 340 nol_time_lft_ms = qdf_do_div(qdf_get_monotonic_boottime() - 341 dfs_nol[i].nol_start_us, 1000); 342 343 if (nol_time_lft_ms < dfs_nol[i].nol_timeout_ms) { 344 chan.dfs_ch_freq = dfs_nol[i].nol_freq; 345 chan.dfs_ch_flags = 0; 346 chan.dfs_ch_flagext = 0; 347 nol_time_lft_ms = 348 (dfs_nol[i].nol_timeout_ms - nol_time_lft_ms); 349 350 DFS_NOL_ADD_CHAN_LOCKED(dfs, chan.dfs_ch_freq, 351 (nol_time_lft_ms / TIME_IN_MS)); 352 utils_dfs_reg_update_nol_chan_for_freq( 353 dfs->dfs_pdev_obj, 354 &chan.dfs_ch_freq, 355 1, DFS_NOL_SET); 356 } 357 } 358 #undef TIME_IN_MS 359 dfs_nol_update(dfs); 360 } 361 #else 362 #endif 363 364 void dfs_nol_addchan(struct wlan_dfs *dfs, 365 uint16_t freq, 366 uint32_t dfs_nol_timeout) 367 { 368 #define TIME_IN_MS 1000 369 #define TIME_IN_US (TIME_IN_MS * 1000) 370 struct dfs_nolelem *nol, *elem, *prev; 371 /* For now, assume all events are 20MHz wide. */ 372 int ch_width = 20; 373 374 if (!dfs) { 375 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 376 return; 377 } 378 nol = dfs->dfs_nol; 379 prev = dfs->dfs_nol; 380 elem = NULL; 381 while (nol) { 382 if ((nol->nol_freq == freq) && 383 (nol->nol_chwidth == ch_width)) { 384 nol->nol_start_us = qdf_get_monotonic_boottime(); 385 nol->nol_timeout_ms = dfs_nol_timeout * TIME_IN_MS; 386 387 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 388 "Update OS Ticks for NOL %d MHz / %d MHz", 389 nol->nol_freq, nol->nol_chwidth); 390 qdf_hrtimer_cancel(&nol->nol_timer); 391 qdf_hrtimer_start(&nol->nol_timer, 392 qdf_time_ms_to_ktime( 393 nol->nol_timeout_ms), 394 QDF_HRTIMER_MODE_REL); 395 return; 396 } 397 prev = nol; 398 nol = nol->nol_next; 399 } 400 401 /* Add a new element to the NOL. */ 402 elem = (struct dfs_nolelem *)qdf_mem_malloc(sizeof(struct dfs_nolelem)); 403 if (!elem) 404 goto bad; 405 406 qdf_mem_zero(elem, sizeof(*elem)); 407 elem->nol_dfs = dfs; 408 elem->nol_freq = freq; 409 elem->nol_chwidth = ch_width; 410 elem->nol_start_us = qdf_get_monotonic_boottime(); 411 elem->nol_timeout_ms = dfs_nol_timeout*TIME_IN_MS; 412 elem->nol_next = NULL; 413 if (prev) { 414 prev->nol_next = elem; 415 } else { 416 /* This is the first element in the NOL. */ 417 dfs->dfs_nol = elem; 418 } 419 420 qdf_hrtimer_init(&elem->nol_timer, dfs_remove_from_nol, 421 QDF_CLOCK_MONOTONIC, QDF_HRTIMER_MODE_REL, 422 QDF_CONTEXT_TASKLET); 423 qdf_hrtimer_start(&elem->nol_timer, 424 qdf_time_ms_to_ktime(dfs_nol_timeout * TIME_IN_MS), 425 QDF_HRTIMER_MODE_REL); 426 427 /* Update the NOL counter. */ 428 dfs->dfs_nol_count++; 429 430 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 431 "new NOL channel %d MHz / %d MHz", 432 elem->nol_freq, elem->nol_chwidth); 433 return; 434 435 bad: 436 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL | WLAN_DEBUG_DFS, 437 "failed to allocate memory for nol entry"); 438 439 #undef TIME_IN_MS 440 #undef TIME_IN_US 441 } 442 443 void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, 444 uint32_t *nol_chfreq, 445 uint32_t *nol_chwidth, 446 int index) 447 { 448 if (!dfs_nol) 449 return; 450 451 *nol_chfreq = dfs_nol[index].nol_freq; 452 *nol_chwidth = dfs_nol[index].nol_chwidth; 453 } 454 455 void dfs_nol_update(struct wlan_dfs *dfs) 456 { 457 struct dfsreq_nolelem *dfs_nol; 458 int nlen; 459 460 if (!dfs->dfs_nol_count) { 461 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "dfs_nol_count is zero"); 462 dfs_mlme_clist_update(dfs->dfs_pdev_obj, NULL, 0); 463 return; 464 } 465 466 /* 467 * Allocate enough entries to store the NOL. At least on Linux 468 * (don't ask why), if you allocate a 0 entry array, the 469 * returned pointer is 0x10. Make sure you're aware of this 470 * when you start debugging. 471 */ 472 dfs_nol = (struct dfsreq_nolelem *)qdf_mem_malloc( 473 sizeof(struct dfsreq_nolelem) * dfs->dfs_nol_count); 474 475 /* 476 * XXX TODO: if this fails, just schedule a task to retry 477 * updating the NOL at a later stage. That way the NOL 478 * update _DOES_ happen - hopefully the failure was just 479 * temporary. 480 */ 481 if (!dfs_nol) 482 return; 483 484 DFS_GET_NOL_LOCKED(dfs, dfs_nol, &nlen); 485 486 /* Be suitably paranoid for now. */ 487 if (nlen != dfs->dfs_nol_count) 488 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "nlen (%d) != dfs->dfs_nol_count (%d)!", 489 nlen, dfs->dfs_nol_count); 490 491 /* 492 * Call the driver layer to have it recalculate the NOL flags 493 * for each driver/umac channel. If the list is empty, pass 494 * NULL instead of dfs_nol. The operating system may have some 495 * special representation for "malloc a 0 byte memory region" 496 * - for example, Linux 2.6.38-13 (ubuntu) returns 0x10 rather 497 * than a valid allocation (and is likely not NULL so the 498 * pointer doesn't match NULL checks in any later code. 499 */ 500 dfs_mlme_clist_update(dfs->dfs_pdev_obj, 501 (nlen > 0) ? dfs_nol : NULL, 502 nlen); 503 504 qdf_mem_free(dfs_nol); 505 } 506 507 void dfs_nol_free_list(struct wlan_dfs *dfs) 508 { 509 struct dfs_nolelem *nol = dfs->dfs_nol, *prev; 510 511 while (nol) { 512 prev = nol; 513 nol = nol->nol_next; 514 qdf_mem_free(prev); 515 /* Update the NOL counter. */ 516 dfs->dfs_nol_count--; 517 518 if (dfs->dfs_nol_count < 0) { 519 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0"); 520 ASSERT(0); 521 } 522 } 523 524 dfs->dfs_nol = NULL; 525 } 526 527 #ifdef CONFIG_CHAN_FREQ_API 528 void dfs_nol_timer_cleanup(struct wlan_dfs *dfs) 529 { 530 struct dfs_nolelem *nol; 531 uint16_t nol_freq; 532 533 while (true) { 534 WLAN_DFSNOL_LOCK(dfs); 535 536 nol = dfs->dfs_nol; 537 if (nol) { 538 dfs->dfs_nol = nol->nol_next; 539 dfs->dfs_nol_count--; 540 nol_freq = nol->nol_freq; 541 WLAN_DFSNOL_UNLOCK(dfs); 542 utils_dfs_reg_update_nol_chan_for_freq( 543 dfs->dfs_pdev_obj, 544 &nol_freq, 545 1, 546 DFS_NOL_RESET); 547 qdf_hrtimer_kill(&nol->nol_timer); 548 qdf_mem_free(nol); 549 } else { 550 WLAN_DFSNOL_UNLOCK(dfs); 551 break; 552 } 553 } 554 } 555 #endif 556 557 void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs) 558 { 559 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 560 } 561 562 int dfs_get_use_nol(struct wlan_dfs *dfs) 563 { 564 return dfs->dfs_use_nol; 565 } 566 567 int dfs_get_nol_timeout(struct wlan_dfs *dfs) 568 { 569 return dfs->wlan_dfs_nol_timeout; 570 } 571 572 void dfs_getnol(struct wlan_dfs *dfs, void *dfs_nolinfo) 573 { 574 struct dfsreq_nolinfo *nolinfo = (struct dfsreq_nolinfo *)dfs_nolinfo; 575 576 DFS_GET_NOL_LOCKED(dfs, nolinfo->dfs_nol, &(nolinfo->dfs_ch_nchans)); 577 } 578 579 #if !defined(MOBILE_DFS_SUPPORT) 580 #ifdef CONFIG_CHAN_FREQ_API 581 void dfs_clear_nolhistory(struct wlan_dfs *dfs) 582 { 583 struct dfs_channel *chan_list; 584 int nchans; 585 bool sta_opmode; 586 int i; 587 qdf_freq_t *nol_freq_list = NULL; 588 uint32_t num_nol_history_chans; 589 590 if (!dfs->dfs_is_stadfs_enabled) 591 return; 592 593 sta_opmode = dfs_mlme_is_opmode_sta(dfs->dfs_pdev_obj); 594 if (!sta_opmode) 595 return; 596 597 nchans = dfs_get_num_chans(); 598 599 if (!nchans) { 600 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 601 return; 602 } 603 604 chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); 605 if (!chan_list) 606 return; 607 608 utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, 609 (void *)chan_list, 610 &num_nol_history_chans); 611 612 if (!num_nol_history_chans) { 613 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 614 qdf_mem_free(chan_list); 615 return; 616 } 617 618 if (num_nol_history_chans > nchans) 619 num_nol_history_chans = nchans; 620 621 nol_freq_list = 622 qdf_mem_malloc(num_nol_history_chans * sizeof(qdf_freq_t)); 623 624 if (!nol_freq_list) { 625 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "Unable to alloc memory for freq list"); 626 qdf_mem_free(chan_list); 627 return; 628 } 629 630 for (i = 0; i < num_nol_history_chans; i++) 631 nol_freq_list[i] = chan_list[i].dfs_ch_freq; 632 633 utils_dfs_reg_update_nol_history_chan_for_freq(dfs->dfs_pdev_obj, 634 nol_freq_list, 635 num_nol_history_chans, 636 DFS_NOL_HISTORY_RESET); 637 qdf_mem_free(chan_list); 638 qdf_mem_free(nol_freq_list); 639 } 640 #endif 641 #endif 642 643 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) && \ 644 defined(CONFIG_CHAN_FREQ_API) 645 void dfs_remove_spoof_channel_from_nol(struct wlan_dfs *dfs) 646 { 647 struct dfs_nolelem *nol; 648 uint16_t freq_list[MAX_20MHZ_SUBCHANS]; 649 int i, nchans = 0; 650 651 nchans = dfs_get_bonding_channels_for_freq(dfs, 652 &dfs->dfs_radar_found_chan, 653 SEG_ID_PRIMARY, 654 DETECTOR_ID_0, 655 freq_list); 656 657 WLAN_DFSNOL_LOCK(dfs); 658 for (i = 0; i < nchans && i < MAX_20MHZ_SUBCHANS; i++) { 659 nol = dfs->dfs_nol; 660 while (nol) { 661 if (nol->nol_freq == freq_list[i]) { 662 qdf_hrtimer_start(&nol->nol_timer, 663 qdf_time_ms_to_ktime(0), 664 QDF_HRTIMER_MODE_REL); 665 break; 666 } 667 nol = nol->nol_next; 668 } 669 } 670 WLAN_DFSNOL_UNLOCK(dfs); 671 672 utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, 673 freq_list, nchans, DFS_NOL_RESET); 674 } 675 #endif 676