xref: /wlan-dirver/qca-wifi-host-cmn/umac/dfs/core/src/misc/dfs.c (revision f28396d060cff5c6519f883cb28ae0116ce479f1)
1 /*
2  * Copyright (c) 2016-2020 The Linux Foundation. All rights reserved.
3  * Copyright (c) 2002-2006, 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 the dfs_attach() and dfs_detach() functions as well
20  * as the dfs_control() function which is used to process ioctls related to DFS.
21  * For Linux/Mac,  "radartool" is the command line tool that can be used to call
22  * various ioctls to set and get radar detection thresholds.
23  */
24 
25 #include "../dfs_zero_cac.h"
26 #include "wlan_dfs_lmac_api.h"
27 #include "wlan_dfs_mlme_api.h"
28 #include "wlan_dfs_tgt_api.h"
29 #include "../dfs_internal.h"
30 #include "../dfs_filter_init.h"
31 #include "../dfs_full_offload.h"
32 #include <wlan_objmgr_vdev_obj.h>
33 #include "wlan_dfs_utils_api.h"
34 #include "../dfs_process_radar_found_ind.h"
35 #include "../dfs_partial_offload_radar.h"
36 
37 /* Disable NOL in FW. */
38 #define DISABLE_NOL_FW 0
39 
40 #ifndef WLAN_DFS_STATIC_MEM_ALLOC
41 /*
42  * dfs_alloc_wlan_dfs() - allocate wlan_dfs buffer
43  *
44  * Return: buffer, null on failure.
45  */
46 static inline struct wlan_dfs *dfs_alloc_wlan_dfs(void)
47 {
48 	return qdf_mem_malloc(sizeof(struct wlan_dfs));
49 }
50 
51 /*
52  * dfs_free_wlan_dfs() - Free wlan_dfs buffer
53  * @dfs: wlan_dfs buffer pointer
54  *
55  * Return: None
56  */
57 static inline void dfs_free_wlan_dfs(struct wlan_dfs *dfs)
58 {
59 	qdf_mem_free(dfs);
60 }
61 
62 /*
63  * dfs_alloc_dfs_curchan() - allocate dfs_channel buffer
64  *
65  * Return: buffer, null on failure.
66  */
67 static inline struct dfs_channel *dfs_alloc_dfs_curchan(void)
68 {
69 	return qdf_mem_malloc(sizeof(struct dfs_channel));
70 }
71 
72 static inline struct dfs_channel *dfs_alloc_dfs_prevchan(void)
73 {
74 	return qdf_mem_malloc(sizeof(struct dfs_channel));
75 }
76 
77 /*
78  * dfs_free_dfs_chan() - Free dfs_channel buffer
79  * @dfs_chan: dfs_channel buffer pointer
80  *
81  * Return: None
82  */
83 static inline void dfs_free_dfs_chan(struct dfs_channel *dfs_chan)
84 {
85 	qdf_mem_free(dfs_chan);
86 }
87 
88 #else
89 
90 /* Static buffers for DFS objects */
91 static struct wlan_dfs global_dfs;
92 static struct dfs_channel global_dfs_curchan;
93 static struct dfs_channel global_dfs_prevchan;
94 
95 static inline struct wlan_dfs *dfs_alloc_wlan_dfs(void)
96 {
97 	return &global_dfs;
98 }
99 
100 static inline void dfs_free_wlan_dfs(struct wlan_dfs *dfs)
101 {
102 }
103 
104 static inline struct dfs_channel *dfs_alloc_dfs_curchan(void)
105 {
106 	return &global_dfs_curchan;
107 }
108 
109 static inline struct dfs_channel *dfs_alloc_dfs_prevchan(void)
110 {
111 	return &global_dfs_prevchan;
112 }
113 
114 static inline void dfs_free_dfs_chan(struct dfs_channel *dfs_chan)
115 {
116 }
117 #endif
118 
119 /**
120  * dfs_testtimer_task() - Sends CSA in the current channel.
121  *
122  * When the user sets usenol to 0 and inject the RADAR, AP does not mark the
123  * channel as RADAR and does not add the channel to NOL. It sends the CSA in
124  * the current channel.
125  */
126 #ifdef CONFIG_CHAN_FREQ_API
127 static os_timer_func(dfs_testtimer_task)
128 {
129 	struct wlan_dfs *dfs = NULL;
130 
131 	OS_GET_TIMER_ARG(dfs, struct wlan_dfs *);
132 	dfs->wlan_dfstest = 0;
133 
134 	/*
135 	 * Flip the channel back to the original channel.
136 	 * Make sure this is done properly with a CSA.
137 	 */
138 	dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS, "go back to channel %d",
139 		 dfs->wlan_dfstest_ieeechan);
140 	dfs_mlme_start_csa_for_freq(dfs->dfs_pdev_obj,
141 				    dfs->wlan_dfstest_ieeechan,
142 				    dfs->dfs_curchan->dfs_ch_freq,
143 				    dfs->dfs_curchan->dfs_ch_mhz_freq_seg2,
144 				    dfs->dfs_curchan->dfs_ch_flags);
145 }
146 #else
147 #ifdef CONFIG_CHAN_NUM_API
148 static os_timer_func(dfs_testtimer_task)
149 {
150 	struct wlan_dfs *dfs = NULL;
151 
152 	OS_GET_TIMER_ARG(dfs, struct wlan_dfs *);
153 	dfs->wlan_dfstest = 0;
154 
155 	/*
156 	 * Flip the channel back to the original channel.
157 	 * Make sure this is done properly with a CSA.
158 	 */
159 	dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS, "go back to channel %d",
160 			dfs->wlan_dfstest_ieeechan);
161 	dfs_mlme_start_csa(dfs->dfs_pdev_obj,
162 			dfs->wlan_dfstest_ieeechan,
163 			dfs->dfs_curchan->dfs_ch_freq,
164 			dfs->dfs_curchan->dfs_ch_vhtop_ch_freq_seg2,
165 			dfs->dfs_curchan->dfs_ch_flags);
166 }
167 #endif
168 #endif
169 
170 int dfs_get_debug_info(struct wlan_dfs *dfs, void *data)
171 {
172 	if (data)
173 		*(uint32_t *)data = dfs->dfs_proc_phyerr;
174 
175 	return (int)dfs->dfs_proc_phyerr;
176 }
177 
178 void dfs_main_task_testtimer_init(struct wlan_dfs *dfs)
179 {
180 	qdf_timer_init(NULL,
181 		&(dfs->wlan_dfstesttimer),
182 		dfs_testtimer_task, (void *)dfs,
183 		QDF_TIMER_TYPE_WAKE_APPS);
184 }
185 
186 int dfs_create_object(struct wlan_dfs **dfs)
187 {
188 	*dfs = dfs_alloc_wlan_dfs();
189 	if (!(*dfs))
190 		return 1;
191 
192 	qdf_mem_zero(*dfs, sizeof(**dfs));
193 
194 	(*dfs)->dfs_curchan = dfs_alloc_dfs_curchan();
195 	if (!((*dfs)->dfs_curchan)) {
196 		dfs_free_wlan_dfs(*dfs);
197 		return 1;
198 	}
199 
200 	(*dfs)->dfs_prevchan = dfs_alloc_dfs_prevchan();
201 	if (!((*dfs)->dfs_prevchan)) {
202 		dfs_free_wlan_dfs(*dfs);
203 		return 1;
204 	}
205 	qdf_mem_zero((*dfs)->dfs_prevchan, sizeof(struct dfs_channel));
206 	return 0;
207 }
208 
209 int dfs_attach(struct wlan_dfs *dfs)
210 {
211 	int ret;
212 
213 	if (!dfs->dfs_is_offload_enabled) {
214 		ret = dfs_main_attach(dfs);
215 
216 		/*
217 		 * For full offload we have a wmi handler registered to process
218 		 * a radar event from firmware in the event of a radar detect.
219 		 * So, init of timer, dfs_task is not required for
220 		 * full-offload. dfs_task timer is called in
221 		 * dfs_main_timer_init within dfs_main_attach for
222 		 * partial-offload in the event of radar detect.
223 		 */
224 		if (ret) {
225 			dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS,  "dfs_main_attach failed");
226 			return ret;
227 		}
228 	}
229 	dfs_cac_timer_attach(dfs);
230 	dfs_zero_cac_attach(dfs);
231 	dfs_nol_attach(dfs);
232 
233 	/*
234 	 * Init of timer ,dfs_testtimer_task is required by both partial
235 	 * and full offload, indicating test mode timer initialization for both.
236 	 */
237 	dfs_main_task_testtimer_init(dfs);
238 	return 0;
239 }
240 
241 void dfs_stop(struct wlan_dfs *dfs)
242 {
243 	dfs_nol_timer_cleanup(dfs);
244 	dfs_nol_workqueue_cleanup(dfs);
245 	dfs_clear_nolhistory(dfs);
246 }
247 
248 void dfs_task_testtimer_reset(struct wlan_dfs *dfs)
249 {
250 	if (dfs->wlan_dfstest) {
251 		qdf_timer_sync_cancel(&dfs->wlan_dfstesttimer);
252 		dfs->wlan_dfstest = 0;
253 	}
254 }
255 
256 void dfs_task_testtimer_detach(struct wlan_dfs *dfs)
257 {
258 	qdf_timer_free(&dfs->wlan_dfstesttimer);
259 	dfs->wlan_dfstest = 0;
260 }
261 
262 void dfs_reset(struct wlan_dfs *dfs)
263 {
264 	if (!dfs) {
265 		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS,  "dfs is NULL");
266 		return;
267 	}
268 
269 	dfs_cac_timer_reset(dfs);
270 	dfs_zero_cac_reset(dfs);
271 	if (!dfs->dfs_is_offload_enabled) {
272 		dfs_main_timer_reset(dfs);
273 		dfs_host_wait_timer_reset(dfs);
274 		dfs_false_radarfound_reset_vars(dfs);
275 	}
276 	dfs_task_testtimer_reset(dfs);
277 }
278 
279 void dfs_timer_detach(struct wlan_dfs *dfs)
280 {
281 	dfs_cac_timer_detach(dfs);
282 	dfs_zero_cac_timer_detach(dfs->dfs_soc_obj);
283 
284 	if (!dfs->dfs_is_offload_enabled) {
285 		dfs_main_timer_detach(dfs);
286 		dfs_host_wait_timer_detach(dfs);
287 	}
288 
289 	dfs_task_testtimer_detach(dfs);
290 	dfs_nol_timer_detach(dfs);
291 }
292 
293 void dfs_detach(struct wlan_dfs *dfs)
294 {
295 	dfs_timer_detach(dfs);
296 	if (!dfs->dfs_is_offload_enabled)
297 		dfs_main_detach(dfs);
298 	dfs_zero_cac_detach(dfs);
299 	dfs_nol_detach(dfs);
300 }
301 
302 #ifndef WLAN_DFS_STATIC_MEM_ALLOC
303 void dfs_destroy_object(struct wlan_dfs *dfs)
304 {
305 	dfs_free_dfs_chan(dfs->dfs_prevchan);
306 	dfs_free_dfs_chan(dfs->dfs_curchan);
307 	dfs_free_wlan_dfs(dfs);
308 }
309 #else
310 void dfs_destroy_object(struct wlan_dfs *dfs)
311 {
312 }
313 #endif
314 
315 /* dfs_set_disable_radar_marking()- Set the flag to mark/unmark a radar flag
316  * on NOL channel.
317  * @dfs: Pointer to wlan_dfs structure.
318  * @disable_radar_marking: Flag to enable/disable marking channel as radar.
319  */
320 #if defined(WLAN_DFS_FULL_OFFLOAD) && defined(QCA_DFS_NOL_OFFLOAD)
321 static void dfs_set_disable_radar_marking(struct wlan_dfs *dfs,
322 					  bool disable_radar_marking)
323 {
324 	dfs->dfs_disable_radar_marking = disable_radar_marking;
325 }
326 #else
327 static inline void dfs_set_disable_radar_marking(struct wlan_dfs *dfs,
328 						 bool disable_radar_marking)
329 {
330 }
331 #endif
332 
333 #if defined(WLAN_DFS_FULL_OFFLOAD) && defined(QCA_DFS_NOL_OFFLOAD)
334 bool dfs_get_disable_radar_marking(struct wlan_dfs *dfs)
335 {
336 	return dfs->dfs_disable_radar_marking;
337 }
338 #else
339 static inline bool dfs_get_disable_radar_marking(struct wlan_dfs *dfs)
340 {
341 	return QDF_STATUS_SUCCESS;
342 }
343 #endif
344 int dfs_control(struct wlan_dfs *dfs,
345 		u_int id,
346 		void *indata,
347 		uint32_t insize,
348 		void *outdata,
349 		uint32_t *outsize)
350 {
351 	struct wlan_dfs_phyerr_param peout;
352 	struct dfs_ioctl_params *dfsparams;
353 	struct dfs_bangradar_params *bangradar_params;
354 	int error = 0;
355 	uint32_t val = 0;
356 	struct dfsreq_nolinfo *nol;
357 	uint32_t *data = NULL;
358 	int i;
359 	struct dfs_emulate_bang_radar_test_cmd dfs_unit_test;
360 	int usenol_pdev_param;
361 
362 	qdf_mem_zero(&dfs_unit_test, sizeof(dfs_unit_test));
363 
364 	if (!dfs) {
365 		dfs_err(NULL, WLAN_DEBUG_DFS_ALWAYS,  "dfs is NULL");
366 		goto bad;
367 	}
368 
369 	switch (id) {
370 	case DFS_SET_THRESH:
371 		if (insize < sizeof(struct dfs_ioctl_params) || !indata) {
372 			dfs_debug(dfs, WLAN_DEBUG_DFS1,
373 					"insize = %d, expected = %zu bytes, indata = %pK",
374 					insize,
375 					sizeof(struct dfs_ioctl_params),
376 					indata);
377 			error = -EINVAL;
378 			break;
379 		}
380 		dfsparams = (struct dfs_ioctl_params *)indata;
381 		if (!dfs_set_thresholds(dfs, DFS_PARAM_FIRPWR,
382 					dfsparams->dfs_firpwr))
383 			error = -EINVAL;
384 		if (!dfs_set_thresholds(dfs, DFS_PARAM_RRSSI,
385 					dfsparams->dfs_rrssi))
386 			error = -EINVAL;
387 		if (!dfs_set_thresholds(dfs, DFS_PARAM_HEIGHT,
388 					dfsparams->dfs_height))
389 			error = -EINVAL;
390 		if (!dfs_set_thresholds(dfs, DFS_PARAM_PRSSI,
391 					dfsparams->dfs_prssi))
392 			error = -EINVAL;
393 		if (!dfs_set_thresholds(dfs, DFS_PARAM_INBAND,
394 					dfsparams->dfs_inband))
395 			error = -EINVAL;
396 
397 		/* 5413 speicfic. */
398 		if (!dfs_set_thresholds(dfs, DFS_PARAM_RELPWR,
399 					dfsparams->dfs_relpwr))
400 			error = -EINVAL;
401 		if (!dfs_set_thresholds(dfs, DFS_PARAM_RELSTEP,
402 					dfsparams->dfs_relstep))
403 			error = -EINVAL;
404 		if (!dfs_set_thresholds(dfs, DFS_PARAM_MAXLEN,
405 					dfsparams->dfs_maxlen))
406 			error = -EINVAL;
407 		break;
408 	case DFS_BANGRADAR:
409 		/*
410 		 * Handle all types of Bangradar here.
411 		 * Bangradar arguments:
412 		 * seg_id      : Segment ID where radar should be injected.
413 		 * is_chirp    : Is chirp radar or non chirp radar.
414 		 * freq_offset : Frequency offset from center frequency.
415 		 *
416 		 * Type 1 (DFS_BANGRADAR_FOR_ALL_SUBCHANS): To add all subchans.
417 		 * Type 2 (DFS_BANGRADAR_FOR_ALL_SUBCHANS_OF_SEGID): To add all
418 		 *               subchans of given segment_id.
419 		 * Type 3 (DFS_BANGRADAR_FOR_SPECIFIC_SUBCHANS): To add specific
420 		 *               subchans based on the arguments.
421 		 *
422 		 * The arguments will already be filled in the indata structure
423 		 * based on the type.
424 		 * If an argument is not specified by user, it will be set to
425 		 * default (0) in the indata already and correspondingly,
426 		 * the type will change.
427 		 */
428 		if (insize < sizeof(struct dfs_bangradar_params) ||
429 		    !indata) {
430 			dfs_debug(dfs, WLAN_DEBUG_DFS1,
431 				  "insize = %d, expected = %zu bytes, indata = %pK",
432 				  insize,
433 				  sizeof(struct dfs_bangradar_params),
434 				  indata);
435 			error = -EINVAL;
436 			break;
437 		}
438 		bangradar_params = (struct dfs_bangradar_params *)indata;
439 		if (bangradar_params) {
440 			if (abs(bangradar_params->freq_offset) >
441 			    FREQ_OFFSET_BOUNDARY_FOR_80MHZ) {
442 				dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
443 					 "Frequency Offset out of bound");
444 				error = -EINVAL;
445 				break;
446 			} else if (bangradar_params->seg_id >
447 				   SEG_ID_SECONDARY) {
448 				dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
449 					 "Illegal segment ID");
450 				error = -EINVAL;
451 				break;
452 			}
453 			dfs->dfs_bangradar_type =
454 				bangradar_params->bangradar_type;
455 			dfs->dfs_seg_id = bangradar_params->seg_id;
456 			dfs->dfs_is_chirp = bangradar_params->is_chirp;
457 			dfs->dfs_freq_offset = bangradar_params->freq_offset;
458 
459 			if (dfs->dfs_is_offload_enabled) {
460 				error = dfs_fill_emulate_bang_radar_test
461 							(dfs, dfs->dfs_seg_id,
462 							 dfs->dfs_is_chirp,
463 							 dfs->dfs_freq_offset,
464 							 &dfs_unit_test);
465 			} else {
466 				error = dfs_start_host_based_bangradar(dfs);
467 			}
468 		} else {
469 			dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
470 				 "bangradar_params is NULL");
471 		}
472 
473 		break;
474 	case DFS_GET_THRESH:
475 		if (!outdata || !outsize ||
476 				*outsize < sizeof(struct dfs_ioctl_params)) {
477 			error = -EINVAL;
478 			break;
479 		}
480 		*outsize = sizeof(struct dfs_ioctl_params);
481 		dfsparams = (struct dfs_ioctl_params *) outdata;
482 
483 		qdf_mem_zero(&peout, sizeof(struct wlan_dfs_phyerr_param));
484 
485 		/* Fetch the DFS thresholds using the internal representation */
486 		(void) dfs_get_thresholds(dfs, &peout);
487 
488 		/* Convert them to the dfs IOCTL representation. */
489 		wlan_dfs_dfsparam_to_ioctlparam(&peout, dfsparams);
490 		break;
491 	case DFS_RADARDETECTS:
492 		if (!outdata || !outsize || *outsize < sizeof(uint32_t)) {
493 			error = -EINVAL;
494 			break;
495 		}
496 		*outsize = sizeof(uint32_t);
497 		*((uint32_t *)outdata) = dfs->wlan_dfs_stats.num_radar_detects;
498 		break;
499 	case DFS_DISABLE_DETECT:
500 		dfs->dfs_proc_phyerr &= ~DFS_RADAR_EN;
501 		dfs->dfs_proc_phyerr &= ~DFS_SECOND_SEGMENT_RADAR_EN;
502 		dfs->dfs_ignore_dfs = 1;
503 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
504 				"enable detects, ignore_dfs %d",
505 				dfs->dfs_ignore_dfs ? 1:0);
506 		break;
507 	case DFS_ENABLE_DETECT:
508 		dfs->dfs_proc_phyerr |= DFS_RADAR_EN;
509 		dfs->dfs_proc_phyerr |= DFS_SECOND_SEGMENT_RADAR_EN;
510 		dfs->dfs_ignore_dfs = 0;
511 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS
512 				, "enable detects, ignore_dfs %d",
513 				dfs->dfs_ignore_dfs ? 1:0);
514 		break;
515 	case DFS_DISABLE_FFT:
516 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
517 				"TODO disable FFT val=0x%x", val);
518 		break;
519 	case DFS_ENABLE_FFT:
520 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
521 				"TODO enable FFT val=0x%x", val);
522 		break;
523 	case DFS_SET_DEBUG_LEVEL:
524 		if (insize < sizeof(uint32_t) || !indata) {
525 			error = -EINVAL;
526 			break;
527 		}
528 		dfs->dfs_debug_mask = *(uint32_t *)indata;
529 
530 		/* Do not allow user to set the ALWAYS/MAX bit.
531 		 * It will be used internally  by dfs print macro(s)
532 		 * to print messages when dfs is NULL.
533 		 */
534 		dfs->dfs_debug_mask &= ~(WLAN_DEBUG_DFS_ALWAYS);
535 
536 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
537 				"debug level now = 0x%x", dfs->dfs_debug_mask);
538 		if (dfs->dfs_debug_mask & WLAN_DEBUG_DFS3) {
539 			/* Enable debug Radar Event */
540 			dfs->dfs_event_log_on = 1;
541 		} else if ((utils_get_dfsdomain(dfs->dfs_pdev_obj) ==
542 		    DFS_FCC_DOMAIN) &&
543 		    lmac_is_host_dfs_check_support_enabled(dfs->dfs_pdev_obj)) {
544 			dfs->dfs_event_log_on = 1;
545 		} else {
546 			dfs->dfs_event_log_on = 0;
547 		}
548 		break;
549 	case DFS_SET_FALSE_RSSI_THRES:
550 		if (insize < sizeof(uint32_t) || !indata) {
551 			error = -EINVAL;
552 			break;
553 		}
554 		dfs->wlan_dfs_false_rssi_thres = *(uint32_t *)indata;
555 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
556 				"false RSSI threshold now = 0x%x",
557 				dfs->wlan_dfs_false_rssi_thres);
558 		break;
559 	case DFS_SET_PEAK_MAG:
560 		if (insize < sizeof(uint32_t) || !indata) {
561 			error = -EINVAL;
562 			break;
563 		}
564 		dfs->wlan_dfs_peak_mag = *(uint32_t *)indata;
565 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
566 				"peak_mag now = 0x%x",
567 				dfs->wlan_dfs_peak_mag);
568 		break;
569 	case DFS_GET_CAC_VALID_TIME:
570 		if (!outdata || !outsize || *outsize < sizeof(uint32_t)) {
571 			error = -EINVAL;
572 			break;
573 		}
574 		*outsize = sizeof(uint32_t);
575 		*((uint32_t *)outdata) = dfs->dfs_cac_valid_time;
576 		break;
577 	case DFS_SET_CAC_VALID_TIME:
578 		if (insize < sizeof(uint32_t) || !indata) {
579 			error = -EINVAL;
580 			break;
581 		}
582 		dfs->dfs_cac_valid_time = *(uint32_t *)indata;
583 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
584 				"dfs timeout = %d", dfs->dfs_cac_valid_time);
585 		break;
586 	case DFS_IGNORE_CAC:
587 		if (insize < sizeof(uint32_t) || !indata) {
588 			error = -EINVAL;
589 			break;
590 		}
591 
592 		if (*(uint32_t *)indata)
593 			dfs->dfs_ignore_cac = 1;
594 		else
595 			dfs->dfs_ignore_cac = 0;
596 
597 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
598 				"ignore cac = 0x%x", dfs->dfs_ignore_cac);
599 		break;
600 	case DFS_SET_NOL_TIMEOUT:
601 		if (insize < sizeof(uint32_t) || !indata) {
602 			error = -EINVAL;
603 			break;
604 		}
605 		if (*(int *)indata)
606 			dfs->wlan_dfs_nol_timeout = *(int *)indata;
607 		else
608 			dfs->wlan_dfs_nol_timeout = DFS_NOL_TIMEOUT_S;
609 
610 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS, "nol timeout = %d sec",
611 				dfs->wlan_dfs_nol_timeout);
612 		break;
613 	case DFS_MUTE_TIME:
614 		if (insize < sizeof(uint32_t) || !indata) {
615 			error = -EINVAL;
616 			break;
617 		}
618 		data = (uint32_t *) indata;
619 		dfs->wlan_dfstesttime = *data;
620 		dfs->wlan_dfstesttime *= (1000); /* convert sec into ms */
621 		break;
622 	case DFS_GET_USENOL:
623 		if (!outdata || !outsize || *outsize < sizeof(uint32_t)) {
624 			error = -EINVAL;
625 			break;
626 		}
627 		*outsize = sizeof(uint32_t);
628 		*((uint32_t *)outdata) = dfs->dfs_use_nol;
629 
630 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
631 				"#Phyerr=%d, #false detect=%d, #queued=%d",
632 				 dfs->dfs_phyerr_count,
633 				dfs->dfs_phyerr_reject_count,
634 				dfs->dfs_phyerr_queued_count);
635 
636 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
637 				"dfs_phyerr_freq_min=%d, dfs_phyerr_freq_max=%d",
638 				 dfs->dfs_phyerr_freq_min,
639 				dfs->dfs_phyerr_freq_max);
640 
641 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
642 				"Total radar events detected=%d, entries in the radar queue follows:",
643 				 dfs->dfs_event_log_count);
644 
645 		for (i = 0; (i < DFS_EVENT_LOG_SIZE) &&
646 				(i < dfs->dfs_event_log_count); i++) {
647 #define FREQ_OFFSET1 ((int)dfs->radar_log[i].freq_offset_khz / 1000)
648 #define FREQ_OFFSET2 ((int)abs(dfs->radar_log[i].freq_offset_khz) % 1000)
649 			dfs_debug(dfs, WLAN_DEBUG_DFS,
650 					"ts=%llu diff_ts=%u rssi=%u dur=%u, is_chirp=%d, seg_id=%d, sidx=%d, freq_offset=%d.%dMHz, peak_mag=%d, total_gain=%d, mb_gain=%d, relpwr_db=%d, delta_diff=%d, delta_peak=%d, psidx_diff=%d\n",
651 					dfs->radar_log[i].ts,
652 					dfs->radar_log[i].diff_ts,
653 					dfs->radar_log[i].rssi,
654 					dfs->radar_log[i].dur,
655 					dfs->radar_log[i].is_chirp,
656 					dfs->radar_log[i].seg_id,
657 					dfs->radar_log[i].sidx,
658 					FREQ_OFFSET1,
659 					FREQ_OFFSET2,
660 					dfs->radar_log[i].peak_mag,
661 					dfs->radar_log[i].total_gain,
662 					dfs->radar_log[i].mb_gain,
663 					dfs->radar_log[i].relpwr_db,
664 					dfs->radar_log[i].delta_diff,
665 					dfs->radar_log[i].delta_peak,
666 					dfs->radar_log[i].psidx_diff);
667 		}
668 		dfs->dfs_event_log_count = 0;
669 		dfs->dfs_phyerr_count = 0;
670 		dfs->dfs_phyerr_reject_count = 0;
671 		dfs->dfs_phyerr_queued_count = 0;
672 		dfs->dfs_phyerr_freq_min = 0x7fffffff;
673 		dfs->dfs_phyerr_freq_max = 0;
674 		break;
675 	case DFS_SET_USENOL:
676 		if (insize < sizeof(uint32_t) || !indata) {
677 			error = -EINVAL;
678 			break;
679 		}
680 		dfs->dfs_use_nol = *(uint32_t *)indata;
681 		usenol_pdev_param = dfs->dfs_use_nol;
682 		if (dfs->dfs_is_offload_enabled) {
683 			if (dfs->dfs_use_nol ==
684 				USENOL_ENABLE_NOL_HOST_DISABLE_NOL_FW)
685 				usenol_pdev_param = DISABLE_NOL_FW;
686 			tgt_dfs_send_usenol_pdev_param(dfs->dfs_pdev_obj,
687 						       usenol_pdev_param);
688 		}
689 		break;
690 	case DFS_SET_DISABLE_RADAR_MARKING:
691 		if (dfs->dfs_is_offload_enabled &&
692 		    (utils_get_dfsdomain(dfs->dfs_pdev_obj) ==
693 			 DFS_FCC_DOMAIN)) {
694 			if (insize < sizeof(uint32_t) || !indata) {
695 				error = -EINVAL;
696 				break;
697 			}
698 			dfs_set_disable_radar_marking(dfs, *(uint8_t *)indata);
699 		}
700 		break;
701 	case DFS_GET_DISABLE_RADAR_MARKING:
702 		if (!outdata || !outsize || *outsize < sizeof(uint8_t)) {
703 			error = -EINVAL;
704 			break;
705 		}
706 		if (dfs->dfs_is_offload_enabled) {
707 			*outsize = sizeof(uint8_t);
708 			*((uint8_t *)outdata) =
709 				dfs_get_disable_radar_marking(dfs);
710 		}
711 		break;
712 	case DFS_GET_NOL:
713 		if (!outdata || !outsize ||
714 				*outsize < sizeof(struct dfsreq_nolinfo)) {
715 			error = -EINVAL;
716 			break;
717 		}
718 		*outsize = sizeof(struct dfsreq_nolinfo);
719 		nol = (struct dfsreq_nolinfo *)outdata;
720 		DFS_GET_NOL_LOCKED(dfs,
721 				(struct dfsreq_nolelem *)nol->dfs_nol,
722 				&nol->dfs_ch_nchans);
723 		DFS_PRINT_NOL_LOCKED(dfs);
724 		break;
725 	case DFS_SET_NOL:
726 		if (insize < sizeof(struct dfsreq_nolinfo) || !indata) {
727 			error = -EINVAL;
728 			break;
729 		}
730 		nol = (struct dfsreq_nolinfo *) indata;
731 		dfs_set_nol(dfs,
732 				(struct dfsreq_nolelem *)nol->dfs_nol,
733 				nol->dfs_ch_nchans);
734 		break;
735 	case DFS_SHOW_NOL:
736 		DFS_PRINT_NOL_LOCKED(dfs);
737 		break;
738 	case DFS_SHOW_NOLHISTORY:
739 		dfs_print_nolhistory(dfs);
740 		break;
741 	case DFS_SHOW_PRECAC_LISTS:
742 		dfs_print_precaclists(dfs);
743 		break;
744 	case DFS_RESET_PRECAC_LISTS:
745 		dfs_reset_precac_lists(dfs);
746 		break;
747 	case DFS_INJECT_SEQUENCE:
748 		error = dfs_inject_synthetic_pulse_sequence(dfs, indata);
749 		if (error)
750 			dfs_debug(dfs, WLAN_DEBUG_DFS_ALWAYS,
751 				  "Not injected Synthetic pulse");
752 		break;
753 
754 	case DFS_ALLOW_HW_PULSES:
755 		if (insize < sizeof(u_int8_t) || !indata) {
756 			error = -EINVAL;
757 			break;
758 		}
759 		dfs_allow_hw_pulses(dfs, !!(*(u_int8_t *)indata));
760 		break;
761 	case DFS_SET_PRI_MULTIPILER:
762 		dfs->dfs_pri_multiplier = *(int *)indata;
763 		dfs_debug(dfs, WLAN_DEBUG_DFS_ALWAYS,
764 			  "Set dfs pri multiplier to %d, dfsdomain %d",
765 			  dfs->dfs_pri_multiplier, dfs->dfsdomain);
766 		break;
767 	default:
768 		error = -EINVAL;
769 	}
770 
771 bad:
772 	return error;
773 }
774 
775 /**
776  * dfs_is_curchan_same_as_given_chan() - Find if dfs_curchan has the same
777  * channel parameters provided.
778  * @dfs_curchan: Pointer to DFS current channel structure.
779  * @dfs_ch_freq: New curchan's primary frequency.
780  * @dfs_ch_flags: New curchan's channel flags.
781  * @dfs_ch_flagext: New curchan's channel flags extension.
782  * @dfs_ch_vhtop_ch_freq_seg1: New curchan's primary centre IEEE.
783  * @dfs_ch_vhtop_ch_freq_seg2: New curchan's secondary centre IEEE.
784  *
785  * Return: True if curchan has the same channel parameters of the given channel,
786  * else false.
787  */
788 static bool
789 dfs_is_curchan_same_as_given_chan(struct dfs_channel *dfs_curchan,
790 				  uint16_t dfs_ch_freq,
791 				  uint64_t dfs_ch_flags,
792 				  uint16_t dfs_ch_flagext,
793 				  uint8_t dfs_ch_vhtop_ch_freq_seg1,
794 				  uint8_t dfs_ch_vhtop_ch_freq_seg2)
795 {
796 	if ((dfs_curchan->dfs_ch_freq == dfs_ch_freq) &&
797 	    (dfs_curchan->dfs_ch_flags == dfs_ch_flags) &&
798 	    (dfs_curchan->dfs_ch_flagext == dfs_ch_flagext) &&
799 	    (dfs_curchan->dfs_ch_vhtop_ch_freq_seg1 ==
800 	     dfs_ch_vhtop_ch_freq_seg1) &&
801 	    (dfs_curchan->dfs_ch_vhtop_ch_freq_seg2 ==
802 	     dfs_ch_vhtop_ch_freq_seg2))
803 		return true;
804 
805 	return false;
806 }
807 
808 #ifdef CONFIG_CHAN_NUM_API
809 void dfs_set_current_channel(struct wlan_dfs *dfs,
810 		uint16_t dfs_ch_freq,
811 		uint64_t dfs_ch_flags,
812 		uint16_t dfs_ch_flagext,
813 		uint8_t dfs_ch_ieee,
814 		uint8_t dfs_ch_vhtop_ch_freq_seg1,
815 		uint8_t dfs_ch_vhtop_ch_freq_seg2)
816 {
817 	if (!dfs) {
818 		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS,  "dfs is NULL");
819 		return;
820 	}
821 
822 	if (!dfs->dfs_curchan) {
823 		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS,  "dfs_curchan is NULL");
824 		return;
825 	}
826 
827 	/* Check if the input parameters are the same as that of dfs_curchan */
828 	if (dfs_is_curchan_same_as_given_chan(dfs->dfs_curchan,
829 					      dfs_ch_freq,
830 					      dfs_ch_flags,
831 					      dfs_ch_flagext,
832 					      dfs_ch_vhtop_ch_freq_seg1,
833 					      dfs_ch_vhtop_ch_freq_seg2)) {
834 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
835 			 "dfs_curchan already updated");
836 		return;
837 	}
838 
839 	/* Update dfs previous channel with the old dfs_curchan, if it exists */
840 	if (dfs->dfs_curchan->dfs_ch_freq)
841 		qdf_mem_copy(dfs->dfs_prevchan,
842 			     dfs->dfs_curchan,
843 			     sizeof(struct dfs_channel));
844 
845 	dfs->dfs_curchan->dfs_ch_freq = dfs_ch_freq;
846 	dfs->dfs_curchan->dfs_ch_flags = dfs_ch_flags;
847 	dfs->dfs_curchan->dfs_ch_flagext = dfs_ch_flagext;
848 	dfs->dfs_curchan->dfs_ch_ieee = dfs_ch_ieee;
849 	dfs->dfs_curchan->dfs_ch_vhtop_ch_freq_seg1 = dfs_ch_vhtop_ch_freq_seg1;
850 	dfs->dfs_curchan->dfs_ch_vhtop_ch_freq_seg2 = dfs_ch_vhtop_ch_freq_seg2;
851 }
852 #endif
853 
854 #ifdef CONFIG_CHAN_FREQ_API
855 void dfs_set_current_channel_for_freq(struct wlan_dfs *dfs,
856 				      uint16_t dfs_chan_freq,
857 				      uint64_t dfs_chan_flags,
858 				      uint16_t dfs_chan_flagext,
859 				      uint8_t dfs_chan_ieee,
860 				      uint8_t dfs_chan_vhtop_freq_seg1,
861 				      uint8_t dfs_chan_vhtop_freq_seg2,
862 				      uint16_t dfs_chan_mhz_freq_seg1,
863 				      uint16_t dfs_chan_mhz_freq_seg2)
864 
865 {
866 	if (!dfs) {
867 		dfs_err(dfs, WLAN_DEBUG_DFS_ALWAYS,  "dfs is NULL");
868 		return;
869 	}
870 
871 	/* Check if the input parameters are the same as that of dfs_curchan */
872 	if (dfs_is_curchan_same_as_given_chan(dfs->dfs_curchan,
873 					      dfs_chan_freq,
874 					      dfs_chan_flags,
875 					      dfs_chan_flagext,
876 					      dfs_chan_vhtop_freq_seg1,
877 					      dfs_chan_vhtop_freq_seg2)) {
878 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
879 			 "dfs_curchan already updated");
880 		return;
881 	}
882 
883 	/* Update dfs previous channel with the old dfs_curchan, if it exists */
884 	if (dfs->dfs_curchan->dfs_ch_freq)
885 		qdf_mem_copy(dfs->dfs_prevchan,
886 			     dfs->dfs_curchan,
887 			     sizeof(struct dfs_channel));
888 
889 	dfs->dfs_curchan->dfs_ch_freq = dfs_chan_freq;
890 	dfs->dfs_curchan->dfs_ch_flags = dfs_chan_flags;
891 	dfs->dfs_curchan->dfs_ch_flagext = dfs_chan_flagext;
892 	dfs->dfs_curchan->dfs_ch_ieee = dfs_chan_ieee;
893 	dfs->dfs_curchan->dfs_ch_vhtop_ch_freq_seg1 = dfs_chan_vhtop_freq_seg1;
894 	dfs->dfs_curchan->dfs_ch_vhtop_ch_freq_seg2 = dfs_chan_vhtop_freq_seg2;
895 	dfs->dfs_curchan->dfs_ch_mhz_freq_seg1 = dfs_chan_mhz_freq_seg1;
896 	dfs->dfs_curchan->dfs_ch_mhz_freq_seg2 = dfs_chan_mhz_freq_seg2;
897 }
898 #endif
899 
900 void dfs_update_cur_chan_flags(struct wlan_dfs *dfs,
901 		uint64_t flags,
902 		uint16_t flagext)
903 {
904 	dfs->dfs_curchan->dfs_ch_flags = flags;
905 	dfs->dfs_curchan->dfs_ch_flagext = flagext;
906 }
907 
908 int dfs_reinit_timers(struct wlan_dfs *dfs)
909 {
910 	dfs_cac_timer_attach(dfs);
911 	dfs_zero_cac_timer_init(dfs->dfs_soc_obj);
912 	dfs_nol_timer_init(dfs);
913 	dfs_main_task_testtimer_init(dfs);
914 	return 0;
915 }
916 
917 void dfs_reset_dfs_prevchan(struct wlan_dfs *dfs)
918 {
919 	qdf_mem_zero(dfs->dfs_prevchan, sizeof(struct dfs_channel));
920 }
921 
922 bool dfs_is_hw_mode_switch_in_progress(struct wlan_dfs *dfs)
923 {
924 	return lmac_dfs_is_hw_mode_switch_in_progress(dfs->dfs_pdev_obj);
925 }
926 
927 void dfs_complete_deferred_tasks(struct wlan_dfs *dfs)
928 {
929 	if (dfs->dfs_defer_params.is_radar_detected) {
930 		/* Handle radar event that was deferred and free the temporary
931 		 * storage of the radar event parameters.
932 		 */
933 		dfs_process_radar_ind(dfs, dfs->dfs_defer_params.radar_params);
934 		qdf_mem_free(dfs->dfs_defer_params.radar_params);
935 		dfs->dfs_defer_params.is_radar_detected = false;
936 	} else if (dfs->dfs_defer_params.is_cac_completed) {
937 		/* Handle CAC completion event that was deferred for HW mode
938 		 * switch.
939 		 */
940 		dfs_process_cac_completion(dfs);
941 		dfs->dfs_defer_params.is_cac_completed = false;
942 	}
943 }
944