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 qdf_freq_t nolfreq; 168 uint16_t delchwidth; 169 uint8_t chan; 170 struct dfs_nolelem *nol_arg; 171 172 nol_arg = container_of(arg, struct dfs_nolelem, nol_timer); 173 dfs = nol_arg->nol_dfs; 174 delfreq = nol_arg->nol_freq; 175 /* Since the content of delfreq might change remember it. 176 * The NOL freq will be used by NOL puncture handler. 177 */ 178 nolfreq = delfreq; 179 delchwidth = nol_arg->nol_chwidth; 180 181 /* Delete the given NOL entry. */ 182 DFS_NOL_DELETE_CHAN_LOCKED(dfs, delfreq, delchwidth); 183 184 utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, 185 &delfreq, 1, DFS_NOL_RESET); 186 /* Update the wireless stack with the new NOL. */ 187 dfs_nol_update(dfs); 188 189 dfs_mlme_nol_timeout_notification(dfs->dfs_pdev_obj); 190 chan = utils_dfs_freq_to_chan(delfreq); 191 utils_dfs_deliver_event(dfs->dfs_pdev_obj, delfreq, 192 WLAN_EV_NOL_FINISHED); 193 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 194 "remove channel %d from nol", chan); 195 utils_dfs_unmark_precac_nol_for_freq(dfs->dfs_pdev_obj, delfreq); 196 197 utils_dfs_save_nol(dfs->dfs_pdev_obj); 198 199 if (dfs->dfs_use_puncture) 200 dfs_handle_nol_puncture(dfs, nolfreq); 201 /* 202 * Check if a channel is configured by the user to which we have to 203 * switch after it's NOL expiry. If that is the case, change 204 * channel immediately. 205 * 206 * If a channel switch is required (indicated by the return value of 207 * dfs_switch_to_postnol_chan_if_nol_expired), return from this function 208 * without posting Start event to Agile SM. That will be taken care 209 * of, after VAP start. 210 */ 211 if (dfs_switch_to_postnol_chan_if_nol_expired(dfs)) 212 return QDF_HRTIMER_NORESTART; 213 /* 214 * If BW Expand is enabled, check if the user configured channel is 215 * available. If it is available, STOP the AGILE SM and Restart the 216 * AGILE SM. This will clear any old preCAC/RCAC chan information. 217 */ 218 if (dfs_bwexpand_find_usr_cnf_chan(dfs)) { 219 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 220 DFS_AGILE_SM_EV_AGILE_STOP); 221 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 222 DFS_AGILE_SM_EV_AGILE_START); 223 } else { 224 /* 225 * In case of interCAC feature, check if the user configured 226 * desired channel is RCAC done or not. 227 * (AP operating on an intermediate channel as desired channel 228 * is still not CAC done). If the RCAC of the desired channel 229 * was interrupted by radar, initiate RCAC on NOL expiry 230 * of the channel. 231 * 232 * If rcac is not started by dfs_restart_rcac_on_nol_expiry() 233 * API initiate rcac start here. 234 */ 235 if (!dfs_restart_rcac_on_nol_expiry(dfs)) 236 utils_dfs_agile_sm_deliver_evt(dfs->dfs_pdev_obj, 237 DFS_AGILE_SM_EV_AGILE_START); 238 } 239 return QDF_HRTIMER_NORESTART; 240 } 241 #endif 242 243 void dfs_print_nol(struct wlan_dfs *dfs) 244 { 245 struct dfs_nolelem *nol; 246 int i = 0; 247 uint32_t diff_ms, remaining_sec; 248 249 if (!dfs) { 250 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 251 return; 252 } 253 254 nol = dfs->dfs_nol; 255 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "NOL"); 256 while (nol) { 257 diff_ms = qdf_do_div(qdf_get_monotonic_boottime() - 258 nol->nol_start_us, 1000); 259 if (nol->nol_timeout_ms > diff_ms) 260 diff_ms = (nol->nol_timeout_ms - diff_ms); 261 else 262 diff_ms = 0; 263 remaining_sec = diff_ms / 1000; /* Convert to seconds */ 264 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 265 "nol:%d channel=%d MHz width=%d MHz time left=%u seconds nol start_us=%llu", 266 i++, nol->nol_freq, 267 nol->nol_chwidth, 268 remaining_sec, 269 nol->nol_start_us); 270 nol = nol->nol_next; 271 } 272 } 273 274 void dfs_print_nolhistory(struct wlan_dfs *dfs) 275 { 276 struct dfs_channel *chan_list; 277 int i, j; 278 int nchans; 279 280 if (!dfs) { 281 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 282 return; 283 } 284 285 nchans = dfs_get_num_chans(); 286 287 chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); 288 if (!chan_list) 289 return; 290 291 utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, 292 (void *)chan_list, &nchans); 293 if (!nchans) { 294 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 295 qdf_mem_free(chan_list); 296 return; 297 } 298 299 for (i = 0, j = 0; i < nchans; i++, j++) 300 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, 301 "nolhistory = %d channel = %d MHz", 302 j, chan_list[i].dfs_ch_freq); 303 304 qdf_mem_free(chan_list); 305 } 306 307 void dfs_get_nol(struct wlan_dfs *dfs, 308 struct dfsreq_nolelem *dfs_nol, 309 int *nchan) 310 { 311 struct dfs_nolelem *nol; 312 313 *nchan = 0; 314 315 if (!dfs) { 316 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 317 return; 318 } 319 320 nol = dfs->dfs_nol; 321 while (nol) { 322 dfs_nol[*nchan].nol_freq = nol->nol_freq; 323 dfs_nol[*nchan].nol_chwidth = nol->nol_chwidth; 324 dfs_nol[*nchan].nol_start_us = nol->nol_start_us; 325 dfs_nol[*nchan].nol_timeout_ms = nol->nol_timeout_ms; 326 ++(*nchan); 327 nol = nol->nol_next; 328 } 329 } 330 331 #ifdef CONFIG_CHAN_FREQ_API 332 void dfs_set_nol(struct wlan_dfs *dfs, 333 struct dfsreq_nolelem *dfs_nol, 334 int nchan) 335 { 336 #define TIME_IN_MS 1000 337 uint32_t nol_time_lft_ms; 338 struct dfs_channel chan; 339 int i; 340 341 if (!dfs) { 342 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 343 return; 344 } 345 346 for (i = 0; i < nchan; i++) { 347 nol_time_lft_ms = qdf_do_div(qdf_get_monotonic_boottime() - 348 dfs_nol[i].nol_start_us, 1000); 349 350 if (nol_time_lft_ms < dfs_nol[i].nol_timeout_ms) { 351 chan.dfs_ch_freq = dfs_nol[i].nol_freq; 352 chan.dfs_ch_flags = 0; 353 chan.dfs_ch_flagext = 0; 354 nol_time_lft_ms = 355 (dfs_nol[i].nol_timeout_ms - nol_time_lft_ms); 356 357 DFS_NOL_ADD_CHAN_LOCKED(dfs, chan.dfs_ch_freq, 358 (nol_time_lft_ms / TIME_IN_MS)); 359 utils_dfs_reg_update_nol_chan_for_freq( 360 dfs->dfs_pdev_obj, 361 &chan.dfs_ch_freq, 362 1, DFS_NOL_SET); 363 } 364 } 365 #undef TIME_IN_MS 366 dfs_nol_update(dfs); 367 } 368 #else 369 #endif 370 371 void dfs_nol_addchan(struct wlan_dfs *dfs, 372 uint16_t freq, 373 uint32_t dfs_nol_timeout) 374 { 375 #define TIME_IN_MS 1000 376 #define TIME_IN_US (TIME_IN_MS * 1000) 377 struct dfs_nolelem *nol, *elem, *prev; 378 /* For now, assume all events are 20MHz wide. */ 379 int ch_width = 20; 380 381 if (!dfs) { 382 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs is NULL"); 383 return; 384 } 385 nol = dfs->dfs_nol; 386 prev = dfs->dfs_nol; 387 elem = NULL; 388 while (nol) { 389 if ((nol->nol_freq == freq) && 390 (nol->nol_chwidth == ch_width)) { 391 nol->nol_start_us = qdf_get_monotonic_boottime(); 392 nol->nol_timeout_ms = dfs_nol_timeout * TIME_IN_MS; 393 394 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 395 "Update OS Ticks for NOL %d MHz / %d MHz", 396 nol->nol_freq, nol->nol_chwidth); 397 qdf_hrtimer_cancel(&nol->nol_timer); 398 qdf_hrtimer_start(&nol->nol_timer, 399 qdf_time_ms_to_ktime( 400 nol->nol_timeout_ms), 401 QDF_HRTIMER_MODE_REL); 402 return; 403 } 404 prev = nol; 405 nol = nol->nol_next; 406 } 407 408 /* Add a new element to the NOL. */ 409 elem = (struct dfs_nolelem *)qdf_mem_malloc(sizeof(struct dfs_nolelem)); 410 if (!elem) 411 goto bad; 412 413 qdf_mem_zero(elem, sizeof(*elem)); 414 elem->nol_dfs = dfs; 415 elem->nol_freq = freq; 416 elem->nol_chwidth = ch_width; 417 elem->nol_start_us = qdf_get_monotonic_boottime(); 418 elem->nol_timeout_ms = dfs_nol_timeout*TIME_IN_MS; 419 elem->nol_next = NULL; 420 if (prev) { 421 prev->nol_next = elem; 422 } else { 423 /* This is the first element in the NOL. */ 424 dfs->dfs_nol = elem; 425 } 426 427 qdf_hrtimer_init(&elem->nol_timer, dfs_remove_from_nol, 428 QDF_CLOCK_MONOTONIC, QDF_HRTIMER_MODE_REL, 429 QDF_CONTEXT_TASKLET); 430 qdf_hrtimer_start(&elem->nol_timer, 431 qdf_time_ms_to_ktime(dfs_nol_timeout * TIME_IN_MS), 432 QDF_HRTIMER_MODE_REL); 433 434 /* Update the NOL counter. */ 435 dfs->dfs_nol_count++; 436 437 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, 438 "new NOL channel %d MHz / %d MHz", 439 elem->nol_freq, elem->nol_chwidth); 440 return; 441 442 bad: 443 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL | WLAN_DEBUG_DFS, 444 "failed to allocate memory for nol entry"); 445 446 #undef TIME_IN_MS 447 #undef TIME_IN_US 448 } 449 450 void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, 451 uint32_t *nol_chfreq, 452 uint32_t *nol_chwidth, 453 int index) 454 { 455 if (!dfs_nol) 456 return; 457 458 *nol_chfreq = dfs_nol[index].nol_freq; 459 *nol_chwidth = dfs_nol[index].nol_chwidth; 460 } 461 462 void dfs_nol_update(struct wlan_dfs *dfs) 463 { 464 struct dfsreq_nolelem *dfs_nol; 465 int nlen; 466 467 if (!dfs->dfs_nol_count) { 468 dfs_debug(dfs, WLAN_DEBUG_DFS_NOL, "dfs_nol_count is zero"); 469 dfs_mlme_clist_update(dfs->dfs_pdev_obj, NULL, 0); 470 return; 471 } 472 473 /* 474 * Allocate enough entries to store the NOL. At least on Linux 475 * (don't ask why), if you allocate a 0 entry array, the 476 * returned pointer is 0x10. Make sure you're aware of this 477 * when you start debugging. 478 */ 479 dfs_nol = (struct dfsreq_nolelem *)qdf_mem_malloc( 480 sizeof(struct dfsreq_nolelem) * dfs->dfs_nol_count); 481 482 /* 483 * XXX TODO: if this fails, just schedule a task to retry 484 * updating the NOL at a later stage. That way the NOL 485 * update _DOES_ happen - hopefully the failure was just 486 * temporary. 487 */ 488 if (!dfs_nol) 489 return; 490 491 DFS_GET_NOL_LOCKED(dfs, dfs_nol, &nlen); 492 493 /* Be suitably paranoid for now. */ 494 if (nlen != dfs->dfs_nol_count) 495 dfs_info(NULL, WLAN_DEBUG_DFS_ALWAYS, "nlen (%d) != dfs->dfs_nol_count (%d)!", 496 nlen, dfs->dfs_nol_count); 497 498 /* 499 * Call the driver layer to have it recalculate the NOL flags 500 * for each driver/umac channel. If the list is empty, pass 501 * NULL instead of dfs_nol. The operating system may have some 502 * special representation for "malloc a 0 byte memory region" 503 * - for example, Linux 2.6.38-13 (ubuntu) returns 0x10 rather 504 * than a valid allocation (and is likely not NULL so the 505 * pointer doesn't match NULL checks in any later code. 506 */ 507 dfs_mlme_clist_update(dfs->dfs_pdev_obj, 508 (nlen > 0) ? dfs_nol : NULL, 509 nlen); 510 511 qdf_mem_free(dfs_nol); 512 } 513 514 void dfs_nol_free_list(struct wlan_dfs *dfs) 515 { 516 struct dfs_nolelem *nol = dfs->dfs_nol, *prev; 517 518 while (nol) { 519 prev = nol; 520 nol = nol->nol_next; 521 qdf_mem_free(prev); 522 /* Update the NOL counter. */ 523 dfs->dfs_nol_count--; 524 525 if (dfs->dfs_nol_count < 0) { 526 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "dfs_nol_count < 0"); 527 ASSERT(0); 528 } 529 } 530 531 dfs->dfs_nol = NULL; 532 } 533 534 #ifdef CONFIG_CHAN_FREQ_API 535 void dfs_nol_timer_cleanup(struct wlan_dfs *dfs) 536 { 537 struct dfs_nolelem *nol; 538 uint16_t nol_freq; 539 540 while (true) { 541 WLAN_DFSNOL_LOCK(dfs); 542 543 nol = dfs->dfs_nol; 544 if (nol) { 545 dfs->dfs_nol = nol->nol_next; 546 dfs->dfs_nol_count--; 547 nol_freq = nol->nol_freq; 548 WLAN_DFSNOL_UNLOCK(dfs); 549 utils_dfs_reg_update_nol_chan_for_freq( 550 dfs->dfs_pdev_obj, 551 &nol_freq, 552 1, 553 DFS_NOL_RESET); 554 qdf_hrtimer_kill(&nol->nol_timer); 555 qdf_mem_free(nol); 556 } else { 557 WLAN_DFSNOL_UNLOCK(dfs); 558 break; 559 } 560 } 561 } 562 #endif 563 564 void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs) 565 { 566 qdf_flush_work(&dfs->dfs_nol_elem_free_work); 567 } 568 569 int dfs_get_use_nol(struct wlan_dfs *dfs) 570 { 571 return dfs->dfs_use_nol; 572 } 573 574 int dfs_get_nol_timeout(struct wlan_dfs *dfs) 575 { 576 return dfs->wlan_dfs_nol_timeout; 577 } 578 579 void dfs_getnol(struct wlan_dfs *dfs, void *dfs_nolinfo) 580 { 581 struct dfsreq_nolinfo *nolinfo = (struct dfsreq_nolinfo *)dfs_nolinfo; 582 583 DFS_GET_NOL_LOCKED(dfs, nolinfo->dfs_nol, &(nolinfo->dfs_ch_nchans)); 584 } 585 586 #if !defined(MOBILE_DFS_SUPPORT) 587 #ifdef CONFIG_CHAN_FREQ_API 588 void dfs_clear_nolhistory(struct wlan_dfs *dfs) 589 { 590 struct dfs_channel *chan_list; 591 int nchans; 592 bool sta_opmode; 593 int i; 594 qdf_freq_t *nol_freq_list = NULL; 595 uint32_t num_nol_history_chans; 596 597 if (!dfs->dfs_is_stadfs_enabled) 598 return; 599 600 sta_opmode = dfs_mlme_is_opmode_sta(dfs->dfs_pdev_obj); 601 if (!sta_opmode) 602 return; 603 604 nchans = dfs_get_num_chans(); 605 606 if (!nchans) { 607 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 608 return; 609 } 610 611 chan_list = qdf_mem_malloc(nchans * sizeof(*chan_list)); 612 if (!chan_list) 613 return; 614 615 utils_dfs_get_nol_history_chan_list(dfs->dfs_pdev_obj, 616 (void *)chan_list, 617 &num_nol_history_chans); 618 619 if (!num_nol_history_chans) { 620 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "zero chans"); 621 qdf_mem_free(chan_list); 622 return; 623 } 624 625 if (num_nol_history_chans > nchans) 626 num_nol_history_chans = nchans; 627 628 nol_freq_list = 629 qdf_mem_malloc(num_nol_history_chans * sizeof(qdf_freq_t)); 630 631 if (!nol_freq_list) { 632 dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS, "Unable to alloc memory for freq list"); 633 qdf_mem_free(chan_list); 634 return; 635 } 636 637 for (i = 0; i < num_nol_history_chans; i++) 638 nol_freq_list[i] = chan_list[i].dfs_ch_freq; 639 640 utils_dfs_reg_update_nol_history_chan_for_freq(dfs->dfs_pdev_obj, 641 nol_freq_list, 642 num_nol_history_chans, 643 DFS_NOL_HISTORY_RESET); 644 qdf_mem_free(chan_list); 645 qdf_mem_free(nol_freq_list); 646 } 647 #endif 648 #endif 649 650 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) && \ 651 defined(CONFIG_CHAN_FREQ_API) 652 void dfs_remove_spoof_channel_from_nol(struct wlan_dfs *dfs) 653 { 654 struct dfs_nolelem *nol; 655 uint16_t freq_list[MAX_20MHZ_SUBCHANS]; 656 int i, nchans = 0; 657 658 nchans = dfs_get_bonding_channels_for_freq(dfs, 659 &dfs->dfs_radar_found_chan, 660 SEG_ID_PRIMARY, 661 DETECTOR_ID_0, 662 freq_list); 663 664 WLAN_DFSNOL_LOCK(dfs); 665 for (i = 0; i < nchans && i < MAX_20MHZ_SUBCHANS; i++) { 666 nol = dfs->dfs_nol; 667 while (nol) { 668 if (nol->nol_freq == freq_list[i]) { 669 qdf_hrtimer_start(&nol->nol_timer, 670 qdf_time_ms_to_ktime(0), 671 QDF_HRTIMER_MODE_REL); 672 break; 673 } 674 nol = nol->nol_next; 675 } 676 } 677 WLAN_DFSNOL_UNLOCK(dfs); 678 679 utils_dfs_reg_update_nol_chan_for_freq(dfs->dfs_pdev_obj, 680 freq_list, nchans, DFS_NOL_RESET); 681 } 682 #endif 683