1 /* 2 * Copyright (c) 2013, 2016-2018 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2005-2006 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 has main dfs structures. 20 */ 21 22 #ifndef _DFS_H_ 23 #define _DFS_H_ 24 25 #include <qdf_types.h> /* QDF_NBUF_EXEMPT_NO_EXEMPTION, etc. */ 26 #include <qdf_net_types.h> /* QDF_NBUF_EXEMPT_NO_EXEMPTION, etc. */ 27 #include <qdf_nbuf.h> /* qdf_nbuf_t, etc. */ 28 #include <qdf_util.h> /* qdf_assert */ 29 #include <qdf_lock.h> /* qdf_spinlock */ 30 #include <qdf_time.h> 31 #include <qdf_timer.h> 32 33 #include <wlan_dfs_ioctl.h> 34 #include "dfs_structs.h" 35 #include "dfs_channel.h" 36 #include "dfs_ioctl_private.h" 37 #include <i_qdf_types.h> /* For qdf_packed*/ 38 #include <queue.h> /* For STAILQ_ENTRY */ 39 #include <wlan_objmgr_psoc_obj.h> 40 #include <wlan_objmgr_pdev_obj.h> 41 #include <osdep.h> 42 43 /* File Line and Submodule String */ 44 #define FLSM(x, str) #str " : " FL(x) 45 /* Cast to dfs type */ 46 #define DC(x) ((struct wlan_dfs *)(x)) 47 48 /** 49 * dfs_log: dfs logging using submodule MASKs and 50 * QDF trace level. 51 * The logging is controlled by two bitmasks: 52 * 1) submodule bitmask: sm 53 * 2) trace level masks: level 54 * 55 * @dfs: The dfs object pointer or NULL if dfs is not defined. 56 * @sm: Submodule BITMASK. 57 * @level: QDF trace level. 58 * @args...: Variable argument list. 59 * 60 * The submodule(sm) cannot be empty even if argument dfs is NULL. 61 * Else the macro will create a compilation error. 62 * One may provide WLAN_DEBUG_DFS_ALWAYS when the argument dfs is NULL. 63 * Example:- 64 * dfs_log(NULL, WLAN_DEBUG_DFS_ALWAYS, QDF_TRACE_LEVEL_INFO,"Error pulse"); 65 * 66 * Why DC(x) is required? 67 * Since NULL is defined as ((void *)(0)), if the argument "dfs" 68 * in a call to the macro "dfs_log" is NULL 69 * then during compilation (NULL)->dfs_debug_mask will dereference 70 * a (void *) type, which is illegal. Therefore, we need 71 * the cast: (DC(dfs))->dfs_debug_mask. 72 * Example:- 73 * dfs_log(NULL, WLAN_DEBUG_DFS, QDF_TRACE_LEVEL_INFO,"dfs is NULL"); 74 */ 75 #define dfs_log(dfs, sm, level, args...) do { \ 76 if (((dfs) == NULL) || \ 77 ((sm) == WLAN_DEBUG_DFS_ALWAYS) || \ 78 ((sm) & ((DC(dfs))->dfs_debug_mask))) { \ 79 QDF_TRACE(QDF_MODULE_ID_DFS, level, ## args); \ 80 } \ 81 } while (0) 82 83 #define dfs_logfl(dfs, level, sm, format, args...) \ 84 dfs_log(dfs, sm, level, FLSM(format, sm), ## args) 85 86 #define dfs_alert(dfs, sm, format, args...) \ 87 dfs_logfl(dfs, QDF_TRACE_LEVEL_FATAL, sm, format, ## args) 88 89 #define dfs_err(dfs, sm, format, args...) \ 90 dfs_logfl(dfs, QDF_TRACE_LEVEL_ERROR, sm, format, ## args) 91 92 #define dfs_warn(dfs, sm, format, args...) \ 93 dfs_logfl(dfs, QDF_TRACE_LEVEL_WARN, sm, format, ## args) 94 95 #define dfs_info(dfs, sm, format, args...) \ 96 dfs_logfl(dfs, QDF_TRACE_LEVEL_INFO, sm, format, ## args) 97 98 #define dfs_debug(dfs, sm, format, args...) \ 99 dfs_logfl(dfs, QDF_TRACE_LEVEL_DEBUG, sm, format, ## args) 100 101 #define DFS_MIN(a, b) ((a) < (b)?(a):(b)) 102 #define DFS_MAX(a, b) ((a) > (b)?(a) : (b)) 103 #define DFS_DIFF(a, b)(DFS_MAX(a, b) - DFS_MIN(a, b)) 104 105 /** 106 * Maximum number of radar events to be processed in a single iteration. 107 * Allows soft watchdog to run. 108 */ 109 #define MAX_EVENTS 100 110 111 /** 112 * Constants to use for chirping detection. 113 * 114 * All are unconverted as HW reports them. 115 * 116 * XXX Are these constants with or without fast clock 5GHz operation? 117 * XXX Peregrine reports pulses in microseconds, not hardware clocks! 118 */ 119 120 #define MAX_DUR_FOR_LOW_RSSI 4 121 122 /** 123 * Cascade has issue with reported duration especially when there is a 124 * crossover of chirp from one segment to another. It may report a value 125 * of duration that is well below 50us for a valid FCC type 5 chirping 126 * pulse. For now changing minimum duration as a work around. This will 127 * affect all chips but since we detect chirp with Merlin+, we may be OK 128 * for now. We need a more robust solution for this. 129 */ 130 #define MIN_BIN5_DUR_CAS 25 /* 50 * 1.25*/ 131 #define MIN_BIN5_DUR_MICROSEC_CAS 20 132 #define MIN_BIN5_DUR 63 /* 50 * 1.25*/ 133 #define MIN_BIN5_DUR_MICROSEC 50 134 #define MAYBE_BIN5_DUR 35 /* 28 * 1.25*/ 135 #define MAYBE_BIN5_DUR_MICROSEC 28 136 137 /* Conversion is already done using dfs->dur_multiplier */ 138 #define MAX_BIN5_DUR 145 /* use 145 for osprey */ 139 #define MAX_BIN5_DUR_MICROSEC 105 140 141 #define DFS_MARGIN_EQUAL(a, b, margin) ((DFS_DIFF(a, b)) <= margin) 142 #define DFS_MAX_STAGGERED_BURSTS 3 143 144 /** 145 * All filter thresholds in the radar filter tables are effective at a 50% 146 * channel loading. 147 */ 148 #define DFS_CHAN_LOADING_THRESH 50 149 #define DFS_EXT_CHAN_LOADING_THRESH 30 150 #define DFS_DEFAULT_PRI_MARGIN 6 151 #define DFS_DEFAULT_FIXEDPATTERN_PRI_MARGIN 4 152 153 #define WLAN_DFSQ_LOCK(_dfs) qdf_spin_lock_bh(&(_dfs)->dfs_radarqlock) 154 #define WLAN_DFSQ_UNLOCK(_dfs) qdf_spin_unlock_bh(&(_dfs)->dfs_radarqlock) 155 #define WLAN_DFSQ_LOCK_CREATE(_dfs) qdf_spinlock_create( \ 156 &(_dfs)->dfs_radarqlock) 157 #define WLAN_DFSQ_LOCK_DESTROY(_dfs) qdf_spinlock_destroy( \ 158 &(_dfs)->dfs_radarqlock) 159 160 #define WLAN_ARQ_LOCK(_dfs) qdf_spin_lock_bh(&(_dfs)->dfs_arqlock) 161 #define WLAN_ARQ_UNLOCK(_dfs) qdf_spin_unlock_bh(&(_dfs)->dfs_arqlock) 162 #define WLAN_ARQ_LOCK_CREATE(_dfs) qdf_spinlock_create(&(_dfs)->dfs_arqlock) 163 #define WLAN_ARQ_LOCK_DESTROY(_dfs) qdf_spinlock_destroy(&(_dfs)->dfs_arqlock) 164 165 #define WLAN_DFSEVENTQ_LOCK(_dfs) qdf_spin_lock_bh(&(_dfs)->dfs_eventqlock) 166 #define WLAN_DFSEVENTQ_UNLOCK(_dfs) qdf_spin_unlock_bh( \ 167 &(_dfs)->dfs_eventqlock) 168 #define WLAN_DFSEVENTQ_LOCK_CREATE(_dfs) qdf_spinlock_create( \ 169 &(_dfs)->dfs_eventqlock) 170 #define WLAN_DFSEVENTQ_LOCK_DESTROY(_dfs) qdf_spinlock_destroy( \ 171 &(_dfs)->dfs_eventqlock) 172 173 #define WLAN_DFSNOL_LOCK(_dfs) qdf_spin_lock_bh(&(_dfs)->dfs_nol_lock) 174 #define WLAN_DFSNOL_UNLOCK(_dfs) qdf_spin_unlock_bh(&(_dfs)->dfs_nol_lock) 175 #define WLAN_DFSNOL_LOCK_CREATE(_dfs) qdf_spinlock_create( \ 176 &(_dfs)->dfs_nol_lock) 177 #define WLAN_DFSNOL_LOCK_DESTROY(_dfs) qdf_spinlock_destroy( \ 178 &(_dfs)->dfs_nol_lock) 179 180 #define PRECAC_LIST_LOCK(_dfs) qdf_spin_lock_irqsave( \ 181 &(_dfs)->dfs_precac_lock) 182 #define PRECAC_LIST_UNLOCK(_dfs) qdf_spin_unlock_irqrestore( \ 183 &(_dfs)->dfs_precac_lock) 184 #define PRECAC_LIST_LOCK_CREATE(_dfs) qdf_spinlock_create( \ 185 &(_dfs)->dfs_precac_lock) 186 #define PRECAC_LIST_LOCK_DESTROY(_dfs) qdf_spinlock_destroy( \ 187 &(_dfs)->dfs_precac_lock) 188 189 /* Mask for time stamp from descriptor */ 190 #define DFS_TSMASK 0xFFFFFFFF 191 /* Shift for time stamp from descriptor */ 192 #define DFS_TSSHIFT 32 193 /* 64 bit TSF wrap value */ 194 #define DFS_TSF_WRAP 0xFFFFFFFFFFFFFFFFULL 195 /* TS mask for 64 bit value */ 196 #define DFS_64BIT_TSFMASK 0x0000000000007FFFULL 197 198 #define DFS_AR_RADAR_RSSI_THR 5 /* in dB */ 199 #define DFS_AR_RADAR_RESET_INT 1 /* in secs */ 200 #define DFS_AR_RADAR_MAX_HISTORY 500 201 #define DFS_AR_REGION_WIDTH 128 202 #define DFS_AR_RSSI_THRESH_STRONG_PKTS 17 /* in dB */ 203 #define DFS_AR_RSSI_DOUBLE_THRESHOLD 15 /* in dB */ 204 #define DFS_AR_MAX_NUM_ACK_REGIONS 9 205 #define DFS_AR_ACK_DETECT_PAR_THRESH 20 206 #define DFS_AR_PKT_COUNT_THRESH 20 207 208 #define DFS_MAX_DL_SIZE 64 209 #define DFS_MAX_DL_MASK 0x3F 210 211 #define DFS_NOL_TIME DFS_NOL_TIMEOUT_US 212 /* 30 minutes in usecs */ 213 214 #define DFS_WAIT_TIME (60*1000000) /* 1 minute in usecs */ 215 216 #define DFS_DISABLE_TIME (3*60*1000000) /* 3 minutes in usecs */ 217 218 #define DFS_MAX_B5_SIZE 128 219 #define DFS_MAX_B5_MASK 0x0000007F /* 128 */ 220 221 /* Max number of overlapping filters */ 222 #define DFS_MAX_RADAR_OVERLAP 16 223 224 /* Max number of dfs events which can be q'd */ 225 #define DFS_MAX_EVENTS 1024 226 227 #define DFS_RADAR_EN 0x80000000 /* Radar detect is capable */ 228 #define DFS_AR_EN 0x40000000 /* AR detect is capable */ 229 /* Radar detect in second segment is capable */ 230 #define DFS_SECOND_SEGMENT_RADAR_EN 0x20000000 231 #define DFS_MAX_RSSI_VALUE 0x7fffffff /* Max rssi value */ 232 233 #define DFS_BIN_MAX_PULSES 60 /* max num of pulses in a burst */ 234 #define DFS_BIN5_PRI_LOWER_LIMIT 990 /* us */ 235 236 /** 237 * To cover the single pusle burst case, change from 2010 us to 238 * 2010000 us. 239 */ 240 241 /** 242 * This is reverted back to 2010 as larger value causes false 243 * bin5 detect (EV76432, EV76320) 244 */ 245 #define DFS_BIN5_PRI_HIGHER_LIMIT 2010 /* us */ 246 247 #define DFS_BIN5_WIDTH_MARGIN 4 /* us */ 248 #define DFS_BIN5_RSSI_MARGIN 5 /* dBm */ 249 250 /** 251 * Following threshold is not specified but should be 252 * okay statistically. 253 */ 254 #define DFS_BIN5_BRI_LOWER_LIMIT 300000 /* us */ 255 #define DFS_BIN5_BRI_UPPER_LIMIT 12000000 /* us */ 256 257 /* Max number of pulses kept in buffer */ 258 #define DFS_MAX_PULSE_BUFFER_SIZE 1024 259 #define DFS_MAX_PULSE_BUFFER_MASK 0x3ff 260 261 #define DFS_FAST_CLOCK_MULTIPLIER (800/11) 262 #define DFS_NO_FAST_CLOCK_MULTIPLIER (80) 263 #define DFS_BIG_SIDX 10000 264 265 /* Min value of valid psidx diff */ 266 #define DFS_MIN_PSIDX_DIFF 4 267 /* Max value of valid psidx diff */ 268 #define DFS_MAX_PSIDX_DIFF 16 269 270 /** 271 * Software use: channel interference used for as AR as well as RADAR 272 * interference detection. 273 */ 274 #define CHANNEL_INTERFERENCE 0x01 275 276 #define CHANNEL_2GHZ 0x00080 /* 2 GHz spectrum channel. */ 277 #define CHANNEL_OFDM 0x00040 /* OFDM channel */ 278 #define CHANNEL_TURBO 0x00010 /* Turbo Channel */ 279 #define CHANNEL_108G (CHANNEL_2GHZ|CHANNEL_OFDM|CHANNEL_TURBO) 280 281 /* qdf_packed - denotes structure is packed. */ 282 #define qdf_packed __qdf_packed 283 284 #define SEG_ID_PRIMARY 0 285 #define SEG_ID_SECONDARY 1 286 287 /* MIN and MAX width for different regions */ 288 #define REG0_MIN_WIDTH 33 289 #define REG0_MAX_WIDTH 38 290 #define REG1_MIN_WIDTH 39 291 #define REG1_MAX_WIDTH 44 292 #define REG2_MIN_WIDTH 53 293 #define REG2_MAX_WIDTH 58 294 #define REG3_MIN_WIDTH 126 295 #define REG3_MAX_WIDTH 140 296 #define REG4_MIN_WIDTH 141 297 #define REG4_MAX_WIDTH 160 298 #define REG5_MIN_WIDTH 189 299 #define REG5_MAX_WIDTH 210 300 #define REG6_MIN_WIDTH 360 301 #define REG6_MAX_WIDTH 380 302 #define REG7_MIN_WIDTH 257 303 #define REG7_MAX_WIDTH 270 304 #define REG8_MIN_WIDTH 295 305 #define REG8_MAX_WIDTH 302 306 307 #define OVER_SAMPLING_FREQ 44000 308 #define SAMPLING_FREQ 40000 309 #define HUNDRED 100 310 #define NUM_BINS 128 311 #define THOUSAND 1000 312 313 /* Check if the dfs current channel is 5.8GHz */ 314 #define DFS_CURCHAN_IS_58GHz(freq) \ 315 ((((freq) >= 5745) && ((freq) <= 5865)) ? true : false) 316 317 /* ETSI11_WORLD regdmn pair id */ 318 #define ETSI11_WORLD_REGDMN_PAIR_ID 0x26 319 #define ETSI12_WORLD_REGDMN_PAIR_ID 0x28 320 #define ETSI13_WORLD_REGDMN_PAIR_ID 0x27 321 #define ETSI14_WORLD_REGDMN_PAIR_ID 0x29 322 323 /* Array offset to ETSI legacy pulse */ 324 #define ETSI_LEGACY_PULSE_ARR_OFFSET 2 325 326 #define DFS_NOL_ADD_CHAN_LOCKED(dfs, freq, timeout) \ 327 do { \ 328 WLAN_DFSNOL_LOCK(dfs); \ 329 dfs_nol_addchan(dfs, freq, timeout); \ 330 WLAN_DFSNOL_UNLOCK(dfs); \ 331 } while (0) 332 333 #define DFS_NOL_DELETE_CHAN_LOCKED(dfs, freq, chwidth) \ 334 do { \ 335 WLAN_DFSNOL_LOCK(dfs); \ 336 dfs_nol_delete(dfs, freq, chwidth); \ 337 WLAN_DFSNOL_UNLOCK(dfs); \ 338 } while (0) 339 340 #define DFS_GET_NOL_LOCKED(dfs, dfs_nol, nchan) \ 341 do { \ 342 WLAN_DFSNOL_LOCK(dfs); \ 343 dfs_get_nol(dfs, dfs_nol, nchan); \ 344 WLAN_DFSNOL_UNLOCK(dfs); \ 345 } while (0) 346 347 #define DFS_PRINT_NOL_LOCKED(dfs) \ 348 do { \ 349 WLAN_DFSNOL_LOCK(dfs); \ 350 dfs_print_nol(dfs); \ 351 WLAN_DFSNOL_UNLOCK(dfs); \ 352 } while (0) 353 354 #define DFS_NOL_FREE_LIST_LOCKED(dfs) \ 355 do { \ 356 WLAN_DFSNOL_LOCK(dfs); \ 357 dfs_nol_free_list(dfs); \ 358 WLAN_DFSNOL_UNLOCK(dfs); \ 359 } while (0) 360 361 /* Host sends the average parameters of the radar pulses and starts the status 362 * wait timer with this timeout. 363 */ 364 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 365 #define HOST_DFS_STATUS_WAIT_TIMER_MS 100 366 #endif 367 368 /** 369 * struct dfs_pulseparams - DFS pulse param structure. 370 * @p_time: Time for start of pulse in usecs. 371 * @p_dur: Duration of pulse in usecs. 372 * @p_rssi: RSSI of pulse. 373 * @p_seg_id: Segment id. 374 * @p_sidx: Sidx value. 375 * @p_delta_peak: Delta peak value. 376 * @p_psidx_diff: The difference in the FFT peak index between the short FFT 377 * and the first long FFT. 378 * @p_seq_num: Sequence number. 379 */ 380 struct dfs_pulseparams { 381 uint64_t p_time; 382 uint8_t p_dur; 383 uint8_t p_rssi; 384 uint8_t p_seg_id; 385 int16_t p_sidx; 386 int8_t p_delta_peak; 387 int16_t p_psidx_diff; 388 uint32_t p_seq_num; 389 } qdf_packed; 390 391 /** 392 * struct dfs_pulseline - Pulseline structure. 393 * @pl_elems[]: array of pulses in delay line. 394 * @pl_firstelem: Index of the first element. 395 * @pl_lastelem: Index of the last element. 396 * @pl_numelems: Number of elements in the delay line. 397 */ 398 struct dfs_pulseline { 399 struct dfs_pulseparams pl_elems[DFS_MAX_PULSE_BUFFER_SIZE]; 400 uint32_t pl_firstelem; 401 uint32_t pl_lastelem; 402 uint32_t pl_numelems; 403 } qdf_packed; 404 405 #define DFS_EVENT_CHECKCHIRP 0x01 /* Whether to check the chirp flag */ 406 #define DFS_EVENT_HW_CHIRP 0x02 /* hardware chirp */ 407 #define DFS_EVENT_SW_CHIRP 0x04 /* software chirp */ 408 /* Whether the event contains valid psidx diff value*/ 409 #define DFS_EVENT_VALID_PSIDX_DIFF 0x08 410 411 /* Use this only if the event has CHECKCHIRP set. */ 412 #define DFS_EVENT_ISCHIRP(e) \ 413 ((e)->re_flags & (DFS_EVENT_HW_CHIRP | DFS_EVENT_SW_CHIRP)) 414 415 /** 416 * Check if the given event is to be rejected as not possibly 417 * a chirp. This means: 418 * (a) it's a hardware or software checked chirp, and 419 * (b) the HW/SW chirp bits are both 0. 420 */ 421 #define DFS_EVENT_NOTCHIRP(e) \ 422 (((e)->re_flags & (DFS_EVENT_CHECKCHIRP)) && (!DFS_EVENT_ISCHIRP((e)))) 423 424 /** 425 * struct dfs_event - DFS event structure. 426 * @re_full_ts: 64-bit full timestamp from interrupt time. 427 * @re_ts: Original 15 bit recv timestamp. 428 * @re_rssi: Rssi of radar event. 429 * @re_dur: Duration of radar pulse. 430 * @re_chanindex: Channel of event. 431 * @re_flags: Event flags. 432 * @re_freq: Centre frequency of event, KHz. 433 * @re_freq_lo: Lower bounds of frequency, KHz. 434 * @re_freq_hi: Upper bounds of frequency, KHz. 435 * @re_seg_id: HT80_80/HT160 use. 436 * @re_sidx: Seg index. 437 * @re_freq_offset_khz: Freq offset in KHz 438 * @re_peak_mag: Peak mag. 439 * @re_total_gain: Total gain. 440 * @re_mb_gain: Mb gain. 441 * @re_relpwr_db: Relpower in db. 442 * @re_delta_diff: Delta diff. 443 * @re_delta_peak: Delta peak. 444 * @re_psidx_diff: Psidx diff. 445 * @re_list: List of radar events. 446 */ 447 struct dfs_event { 448 uint64_t re_full_ts; 449 uint32_t re_ts; 450 uint8_t re_rssi; 451 uint8_t re_dur; 452 uint8_t re_chanindex; 453 uint8_t re_flags; 454 uint32_t re_freq; 455 uint32_t re_freq_lo; 456 uint32_t re_freq_hi; 457 uint8_t re_seg_id; 458 int re_sidx; 459 u_int re_freq_offset_khz; 460 int re_peak_mag; 461 int re_total_gain; 462 int re_mb_gain; 463 int re_relpwr_db; 464 uint8_t re_delta_diff; 465 int8_t re_delta_peak; 466 int16_t re_psidx_diff; 467 468 STAILQ_ENTRY(dfs_event) re_list; 469 } qdf_packed; 470 471 #define DFS_AR_MAX_ACK_RADAR_DUR 511 472 #define DFS_AR_MAX_NUM_PEAKS 3 473 #define DFS_AR_ARQ_SIZE 2048 /* 8K AR events for buffer size */ 474 #define DFS_AR_ARQ_SEQSIZE 2049 /* Sequence counter wrap for AR */ 475 476 #define DFS_RADARQ_SIZE 512 /* 1K radar events for buffer size */ 477 #define DFS_RADARQ_SEQSIZE 513 /* Sequence counter wrap for radar */ 478 /* Number of radar channels we keep state for */ 479 #define DFS_NUM_RADAR_STATES 64 480 /* Max number radar filters for each type */ 481 #define DFS_MAX_NUM_RADAR_FILTERS 10 482 /* Number of different radar types */ 483 #define DFS_MAX_RADAR_TYPES 32 484 /* Number of filter index table rows */ 485 #define DFS_NUM_FT_IDX_TBL_ROWS 256 486 487 /* RADAR filter pattern type 1*/ 488 #define WLAN_DFS_RF_PATTERN_TYPE_1 1 489 490 /** 491 * struct dfs_ar_state - DFS AR state structure. 492 * @ar_prevwidth: Previous width. 493 * @ar_phyerrcount[]: Phy error count. 494 * @ar_acksum: Acksum. 495 * @ar_packetthreshold: Thresh to determine traffic load. 496 * @ar_parthreshold: Thresh to determine peak. 497 * @ar_radarrssi: Rssi threshold for AR event. 498 * @ar_prevtimestamp: Prev time stamp. 499 * @ar_peaklist[]: Peak list. 500 */ 501 struct dfs_ar_state { 502 uint32_t ar_prevwidth; 503 uint32_t ar_phyerrcount[DFS_AR_MAX_ACK_RADAR_DUR]; 504 uint32_t ar_acksum; 505 uint32_t ar_packetthreshold; 506 uint32_t ar_parthreshold; 507 uint32_t ar_radarrssi; 508 uint16_t ar_prevtimestamp; 509 uint16_t ar_peaklist[DFS_AR_MAX_NUM_PEAKS]; 510 }; 511 512 /** 513 * struct dfs_delayelem - Delay Element. 514 * @de_time: Current "filter" time for start of pulse in usecs. 515 * @de_dur: Duration of pulse in usecs. 516 * @de_rssi: Rssi of pulse in dB. 517 * @de_ts: Time stamp for this delay element. 518 * @de_seg_id: Segment id for HT80_80/HT160 use. 519 * @de_sidx: Sidx value. 520 * @de_delta_peak: Delta peak. 521 * @de_psidx_diff: Psidx diff. 522 * @de_seq_num: Sequence number. 523 */ 524 struct dfs_delayelem { 525 uint32_t de_time; 526 uint8_t de_dur; 527 uint8_t de_rssi; 528 uint64_t de_ts; 529 uint8_t de_seg_id; 530 int16_t de_sidx; 531 int8_t de_delta_peak; 532 int16_t de_psidx_diff; 533 uint32_t de_seq_num; 534 } qdf_packed; 535 536 /** 537 * struct dfs_delayline - DFS Delay Line. 538 * @dl_elems[]: Array of pulses in delay line. 539 * @dl_last_ts: Last timestamp the delay line was used (in usecs). 540 * @dl_firstelem: Index of the first element. 541 * @dl_lastelem: Index of the last element. 542 * @dl_numelems: Number of elements in the delay line. 543 * The following is to handle fractional PRI pulses that can cause false 544 * detection. 545 * @dl_seq_num_start: Sequence number of first pulse that was part of 546 * threshold match. 547 * @dl_seq_num_stop: Sequence number of last pulse that was part of threshold 548 * match. 549 * The following is required because the first pulse may or may not be in the 550 * delay line but we will find it iin the pulse line using dl_seq_num_second's 551 * diff_ts value. 552 * @dl_seq_num_second: Sequence number of second pulse that was part of 553 * threshold match. 554 * @dl_search_pri: We need final search PRI to identify possible fractional 555 * PRI issue. 556 * @dl_min_sidx: Minimum sidx value of pulses used to match thershold. 557 * Used for sidx spread check. 558 * @dl_max_sidx: Maximum sidx value of pulses used to match thershold. 559 * Used for sidx spread check. 560 * @dl_delta_peak_match_count: Number of pulse in the delay line that had valid 561 * delta peak value. 562 * @dl_psidx_diff_match_count: Number of pulse in the delay line that had valid 563 * psidx diff value. 564 */ 565 struct dfs_delayline { 566 struct dfs_delayelem dl_elems[DFS_MAX_DL_SIZE]; 567 uint64_t dl_last_ts; 568 uint32_t dl_firstelem; 569 uint32_t dl_lastelem; 570 uint32_t dl_numelems; 571 uint32_t dl_seq_num_start; 572 uint32_t dl_seq_num_stop; 573 uint32_t dl_seq_num_second; 574 uint32_t dl_search_pri; 575 int16_t dl_min_sidx; 576 int8_t dl_max_sidx; 577 uint8_t dl_delta_peak_match_count; 578 uint8_t dl_psidx_diff_match_count; 579 } qdf_packed; 580 581 /** 582 * struct dfs_filter - Dfs filter. 583 * @rf_dl: Delay line of pulses for this filter. 584 * @rf_numpulses: Number of pulses in the filter. 585 * @rf_minpri: Min pri to be considered for this filter. 586 * @rf_maxpri: Max pri to be considered for this filter. 587 * @rf_threshold: Match filter output threshold for radar detect. 588 * @rf_filterlen: Length (in usecs) of the filter. 589 * @rf_patterntype: Fixed or variable pattern type. 590 * @rf_fixed_pri_radar_pulse: indicates if it is a fixed pri pulse. 591 * @rf_mindur: Min duration for this radar filter. 592 * @rf_maxdur: Max duration for this radar filter. 593 * @rf_ignore_pri_window: Ignore pri window. 594 * @rf_pulseid: Unique ID corresponding to the original filter ID. 595 * To reduce false detection, look at frequency spread. For now we will use 596 * sidx spread. But for HT160 frequency spread will be a better measure. 597 * @rf_sidx_spread: Maximum SIDX value spread in a matched sequence 598 * excluding FCC Bin 5. 599 * @rf_check_delta_peak: Minimum allowed delta_peak value for a pulse to be 600 * considetred for this filter's match. 601 */ 602 struct dfs_filter { 603 struct dfs_delayline rf_dl; 604 uint32_t rf_numpulses; 605 uint32_t rf_minpri; 606 uint32_t rf_maxpri; 607 uint32_t rf_threshold; 608 uint32_t rf_filterlen; 609 uint32_t rf_patterntype; 610 uint32_t rf_fixed_pri_radar_pulse; 611 uint32_t rf_mindur; 612 uint32_t rf_maxdur; 613 uint32_t rf_ignore_pri_window; 614 uint32_t rf_pulseid; 615 uint16_t rf_sidx_spread; 616 int8_t rf_check_delta_peak; 617 } qdf_packed; 618 619 /** 620 * struct dfs_filtertype - DFS Filter type. 621 * @ft_filterdur[]: Filter array. 622 * @ft_filterdur: Duration of pulse which specifies filter type. 623 * @ft_numfilters: Num filters of this type. 624 * @ft_last_ts: Last timestamp this filtertype was used (in usecs). 625 * @ft_mindur: Min pulse duration to be considered for this filter type. 626 * @ft_maxdur: Max pulse duration to be considered for this filter type. 627 * @ft_rssithresh: Min rssi to be considered for this filter type. 628 * @ft_numpulses: Num pulses in each filter of this type. 629 * @ft_patterntype: Fixed or variable pattern type. 630 * @ft_minpri: Min pri to be considered for this type. 631 * @ft_rssimargin: Rssi threshold margin. In Turbo Mode HW reports rssi 3dB 632 * lower than in non TURBO mode. This will offset that diff. 633 */ 634 struct dfs_filtertype { 635 struct dfs_filter ft_filters[DFS_MAX_NUM_RADAR_FILTERS]; 636 uint32_t ft_filterdur; 637 uint32_t ft_numfilters; 638 uint64_t ft_last_ts; 639 uint32_t ft_mindur; 640 uint32_t ft_maxdur; 641 uint32_t ft_rssithresh; 642 uint32_t ft_numpulses; 643 uint32_t ft_patterntype; 644 uint32_t ft_minpri; 645 uint32_t ft_rssimargin; 646 }; 647 648 /** 649 * struct dfs_channel - Channel structure for dfs component. 650 * @dfs_ch_freq: Frequency in Mhz. 651 * @dfs_ch_flags: Channel flags. 652 * @dfs_ch_flagext: Extended channel flags. 653 * @dfs_ch_ieee: IEEE channel number. 654 * @dfs_ch_vhtop_ch_freq_seg1: Channel Center frequency. 655 * @dfs_ch_vhtop_ch_freq_seg2: Channel Center frequency applicable for 80+80MHz 656 * mode of operation. 657 */ 658 struct dfs_channel { 659 uint16_t dfs_ch_freq; 660 uint64_t dfs_ch_flags; 661 uint16_t dfs_ch_flagext; 662 uint8_t dfs_ch_ieee; 663 uint8_t dfs_ch_vhtop_ch_freq_seg1; 664 uint8_t dfs_ch_vhtop_ch_freq_seg2; 665 }; 666 667 /** 668 * struct dfs_state - DFS state. 669 * @rs_chan: Channel info. 670 * @rs_chanindex: Channel index in radar structure. 671 * @rs_numradarevents: Number of radar events. 672 * @rs_param: Phy param. 673 */ 674 struct dfs_state { 675 struct dfs_channel rs_chan; 676 uint8_t rs_chanindex; 677 uint32_t rs_numradarevents; 678 struct wlan_dfs_phyerr_param rs_param; 679 }; 680 681 #define DFS_NOL_TIMEOUT_S (30*60) /* 30 minutes in seconds */ 682 #define DFS_NOL_TIMEOUT_MS (DFS_NOL_TIMEOUT_S * 1000) 683 #define DFS_NOL_TIMEOUT_US (DFS_NOL_TIMEOUT_MS * 1000) 684 685 /** 686 * struct dfs_nolelem - DFS NOL element. 687 * @nol_dfs Back pointer to dfs object. 688 * @nol_freq: Centre frequency. 689 * @nol_chwidth: Event width (MHz). 690 * @nol_start_ticks: NOL start time in OS ticks. 691 * @nol_timeout_ms: NOL timeout value in msec. 692 * @nol_timer: Per element NOL timer. 693 * @nol_next: Next element pointer. 694 */ 695 struct dfs_nolelem { 696 TAILQ_ENTRY(dfs_nolelem) nolelem_list; 697 struct wlan_dfs *nol_dfs; 698 uint32_t nol_freq; 699 uint32_t nol_chwidth; 700 unsigned long nol_start_ticks; 701 uint32_t nol_timeout_ms; 702 os_timer_t nol_timer; 703 struct dfs_nolelem *nol_next; 704 } qdf_packed; 705 706 707 /** 708 * struct dfs_info - DFS Info. 709 * @rn_ftindex: Number of different types of radars. 710 * @rn_lastfull_ts: Last 64 bit timstamp from recv interrupt. 711 * @rn_last_ts: last 15 bit ts from recv descriptor. 712 * @rn_last_unique_ts: last unique 32 bit ts from recv descriptor. 713 * @rn_ts_prefix: Prefix to prepend to 15 bit recv ts. 714 * @rn_numbin5radars: Number of bin5 radar pulses to search for. 715 * @rn_fastdivGCval: Value of fast diversity gc limit from init file. 716 * @rn_minrssithresh: Min rssi for all radar types. 717 * @rn_maxpulsedur: Max pulse width in TSF ticks. 718 * @dfs_ext_chan_busy: Ext chan busy. 719 * @ext_chan_busy_ts: Ext chan busy time. 720 * @dfs_bin5_chirp_ts: Ext bin5 chrip time. 721 * @dfs_last_bin5_dur: Last bin5 during. 722 */ 723 struct dfs_info { 724 uint32_t rn_ftindex; 725 uint64_t rn_lastfull_ts; 726 uint16_t rn_last_ts; 727 uint32_t rn_last_unique_ts; 728 uint64_t rn_ts_prefix; 729 uint32_t rn_numbin5radars; 730 uint32_t rn_fastdivGCval; 731 int32_t rn_minrssithresh; 732 uint32_t rn_maxpulsedur; 733 uint8_t dfs_ext_chan_busy; 734 uint64_t ext_chan_busy_ts; 735 uint64_t dfs_bin5_chirp_ts; 736 uint8_t dfs_last_bin5_dur; 737 } qdf_packed; 738 739 /** 740 * struct dfs_bin5elem - BIN5 elements. 741 * @be_ts: Timestamp for the bin5 element. 742 * @be_rssi: Rssi for the bin5 element. 743 * @be_dur: Duration of bin5 element. 744 */ 745 struct dfs_bin5elem { 746 uint64_t be_ts; 747 uint32_t be_rssi; 748 uint32_t be_dur; 749 }; 750 751 /** 752 * struct dfs_bin5radars - BIN5 radars. 753 * @br_elems[]: List of bin5 elems that fall within the time window. 754 * @br_firstelem: Index of the first element. 755 * @br_lastelem: Index of the last element. 756 * @br_numelems: Number of elements in the delay line. 757 * @br_pulse: Original info about bin5 pulse. 758 */ 759 struct dfs_bin5radars { 760 struct dfs_bin5elem br_elems[DFS_MAX_B5_SIZE]; 761 uint32_t br_firstelem; 762 uint32_t br_lastelem; 763 uint32_t br_numelems; 764 struct dfs_bin5pulse br_pulse; 765 }; 766 767 /** 768 * struct dfs_stats - DFS stats. 769 * @num_radar_detects: Total num. of radar detects. 770 * @num_seg_two_radar_detects: Total num. of radar detected in secondary segment 771 * @total_phy_errors: Total PHY errors. 772 * @owl_phy_errors: OWL PHY errors. 773 * @pri_phy_errors: Primary channel phy errors. 774 * @ext_phy_errors: Extension channel phy errors. 775 * @dc_phy_errors: DC PHY errors. 776 * @early_ext_phy_errors: Extension channel early radar found error. 777 * @bwinfo_errors: Bogus bandwidth info received in descriptor. 778 * @datalen_discards: data length at least three bytes of payload. 779 * @rssi_discards: RSSI is not accurate. 780 * @last_reset_tstamp: Last reset timestamp. 781 */ 782 struct dfs_stats { 783 uint32_t num_radar_detects; 784 uint32_t num_seg_two_radar_detects; 785 uint32_t total_phy_errors; 786 uint32_t owl_phy_errors; 787 uint32_t pri_phy_errors; 788 uint32_t ext_phy_errors; 789 uint32_t dc_phy_errors; 790 uint32_t early_ext_phy_errors; 791 uint32_t bwinfo_errors; 792 uint32_t datalen_discards; 793 uint32_t rssi_discards; 794 uint64_t last_reset_tstamp; 795 }; 796 797 #define DFS_EVENT_LOG_SIZE 256 798 799 /** 800 * struct dfs_event_log - DFS event log. 801 * @ts: 64-bit full timestamp from interrupt time. 802 * @diff_ts: Diff timestamp. 803 * @rssi: Rssi of radar event. 804 * @dur: Duration of radar pulse. 805 * @is_chirp: Chirp flag. 806 * @seg_id: HT80_80/HT160 use. 807 * @sidx: Seg index. 808 * @freq_offset_khz: Freq offset in KHz 809 * @peak_mag: Peak mag. 810 * @total_gain: Total gain. 811 * @mb_gain: Mb gain. 812 * @relpwr_db: Relpower in db. 813 * @delta_diff: Delta diff. 814 * @delta_peak: Delta peak. 815 * @psidx_diff: Psidx diff. 816 */ 817 818 struct dfs_event_log { 819 uint64_t ts; 820 uint32_t diff_ts; 821 uint8_t rssi; 822 uint8_t dur; 823 int is_chirp; 824 uint8_t seg_id; 825 int sidx; 826 u_int freq_offset_khz; 827 int peak_mag; 828 int total_gain; 829 int mb_gain; 830 int relpwr_db; 831 uint8_t delta_diff; 832 int8_t delta_peak; 833 int16_t psidx_diff; 834 }; 835 836 #define WLAN_DFS_RESET_TIME_S 7 837 #define WLAN_DFS_WAIT (60 + WLAN_DFS_RESET_TIME_S) /* 60 seconds */ 838 #define WLAN_DFS_WAIT_MS ((WLAN_DFS_WAIT) * 1000) /*in MS*/ 839 840 #define WLAN_DFS_WEATHER_CHANNEL_WAIT_MIN 10 /*10 minutes*/ 841 #define WLAN_DFS_WEATHER_CHANNEL_WAIT_S (WLAN_DFS_WEATHER_CHANNEL_WAIT_MIN * 60) 842 #define WLAN_DFS_WEATHER_CHANNEL_WAIT_MS \ 843 ((WLAN_DFS_WEATHER_CHANNEL_WAIT_S) * 1000) /*in MS*/ 844 845 #define WLAN_DFS_WAIT_POLL_PERIOD 2 /* 2 seconds */ 846 #define WLAN_DFS_WAIT_POLL_PERIOD_MS \ 847 ((WLAN_DFS_WAIT_POLL_PERIOD) * 1000) /*in MS*/ 848 849 #define DFS_DEBUG_TIMEOUT_S 30 /* debug timeout is 30 seconds */ 850 #define DFS_DEBUG_TIMEOUT_MS (DFS_DEBUG_TIMEOUT_S * 1000) 851 852 #define RSSI_POSSIBLY_FALSE 50 853 #define SEARCH_FFT_REPORT_PEAK_MAG_THRSH 40 854 855 /** 856 * struct wlan_dfs - The main dfs structure. 857 * @dfs_debug_mask: Current debug bitmask. 858 * @dfs_curchan_radindex: Current channel radar index. 859 * @dfs_extchan_radindex: Extension channel radar index. 860 * @dfsdomain: Current DFS domain. 861 * @dfs_proc_phyerr: Flags for Phy Errs to process. 862 * @dfs_eventq: Q of free dfs event objects. 863 * @dfs_eventqlock: Lock for free dfs event list. 864 * @dfs_radarq: Q of radar events. 865 * @dfs_radarqlock: Lock for dfs q. 866 * @dfs_arq: Q of AR events. 867 * @dfs_arqlock: Lock for AR q. 868 * @dfs_ar_state: AR state. 869 * @dfs_radar[]: Per-Channel Radar detector state. 870 * @dfs_radarf[]: One filter for each radar pulse type. 871 * @dfs_rinfo: State vars for radar processing. 872 * @dfs_b5radars: Array of bin5 radar events. 873 * @dfs_ftindextable: Map of radar durs to filter types. 874 * @dfs_nol: Non occupancy list for radar. 875 * @dfs_nol_count: How many items? 876 * @dfs_defaultparams: Default phy params per radar state. 877 * @wlan_dfs_stats: DFS related stats. 878 * @pulses: Pulse history. 879 * @events: Events structure. 880 * @wlan_radar_tasksched: Radar task is scheduled. 881 * @wlan_dfswait: Waiting on channel for radar detect. 882 * @wlan_dfstest: Test timer in progress. 883 * @dfs_caps: Object of wlan_dfs_caps structure. 884 * @wlan_dfstest_ieeechan: IEEE chan num to return to after a dfs mute 885 * test. 886 * @wlan_dfs_cac_time: CAC period. 887 * @wlan_dfstesttime: Time to stay off chan during dfs test. 888 * @wlan_dfswaittimer: Dfs wait timer. 889 * @wlan_dfstesttimer: Dfs mute test timer. 890 * @wlan_dfs_debug_timer: Dfs debug timer. 891 * @dfs_second_segment_bangradar: Bangaradar on second segment of 892 * VHT80_80/160. 893 * @is_radar_found_on_secondary_seg: Radar on second segment. 894 * @is_radar_during_precac: Radar found during precac. 895 * @dfs_precac_lock: Lock to protect precac lists. 896 * @dfs_precac_enable: Enable the precac. 897 * @dfs_precac_secondary_freq: Second segment freq for precac. 898 * @dfs_precac_primary_freq: Primary freq. 899 * @dfs_precac_timer_running: Precac timer running. 900 * @dfs_defer_precac_channel_change: Defer precac channel change. 901 * @dfs_pre_cac_timeout_channel_change: Channel change due to precac timeout. 902 * @wlan_dfs_task_timer: Dfs wait timer. 903 * @dur_multiplier: Duration multiplier. 904 * @wlan_dfs_isdfsregdomain: True when AP is in DFS domain 905 * @wlan_dfs_false_rssi_thres: False RSSI Threshold. 906 * @wlan_dfs_peak_mag: Peak mag. 907 * @radar_log[]: Radar log. 908 * @dfs_event_log_count: Event log count. 909 * @dfs_event_log_on: Event log on. 910 * @dfs_phyerr_count: Same as number of PHY radar interrupts. 911 * @dfs_phyerr_reject_count: When TLV is supported, # of radar events 912 * ignored after TLV is parsed. 913 * @dfs_phyerr_queued_count: Number of radar events queued for matching 914 * the filters. 915 * @dfs_phyerr_freq_min: Phyerr min freq. 916 * @dfs_phyerr_freq_max: Phyerr max freq. 917 * @dfs_phyerr_w53_counter: Phyerr w53 counter. 918 * @dfs_pri_multiplier: Allow pulse if they are within multiple of 919 * PRI for the radar type. 920 * @wlan_dfs_nol_timeout: NOL timeout. 921 * @update_nol: Update NOL. 922 * @dfs_seq_num: Sequence number. 923 * @dfs_nol_event[]: NOL event. 924 * @dfs_nol_timer: NOL list processing. 925 * @dfs_nol_free_list: NOL free list. 926 * @dfs_nol_elem_free_work: The work queue to free an NOL element. 927 * @dfs_cac_timer: CAC timer. 928 * @dfs_cac_valid_timer: Ignore CAC when this timer is running. 929 * @dfs_cac_timeout_override: Overridden cac timeout. 930 * @dfs_enable: DFS Enable. 931 * @dfs_cac_timer_running: DFS CAC timer running. 932 * @dfs_ignore_dfs: Ignore DFS. 933 * @dfs_ignore_cac: Ignore CAC. 934 * @dfs_cac_valid: DFS CAC valid. 935 * @dfs_cac_valid_time: Time for which CAC will be valid and will 936 * not be re-done. 937 * @dfs_precac_timer: PRECAC timer. 938 * @dfs_precac_timeout_override: Overridden precac timeout. 939 * @dfs_num_precac_freqs: Number of PreCAC VHT80 frequencies. 940 * @dfs_precac_required_list: PreCAC required list. 941 * @dfs_precac_done_list: PreCAC done list. 942 * @dfs_precac_nol_list: PreCAC NOL List. 943 * @dfs_is_offload_enabled: Set if DFS offload enabled. 944 * @dfs_use_nol: Use the NOL when radar found(default: TRUE) 945 * @dfs_nol_lock: Lock to protect nol list. 946 * @tx_leakage_threshold: Tx leakage threshold for dfs. 947 * @dfs_use_nol_subchannel_marking: Use subchannel marking logic to add only 948 * radar affected subchannel instead of all 949 * bonding channels. 950 * @dfs_host_wait_timer: The timer that is started from host after 951 * sending the average radar parameters. 952 * Before this timeout host expects its dfs 953 * status from fw. 954 * @dfs_average_pri: Average pri value of the received radar 955 * pulses. 956 * @dfs_average_duration: Average duration of the received radar 957 * pulses. 958 * @dfs_average_sidx: Average sidx of the received radar pulses. 959 * @dfs_is_host_wait_running: Indicates if host dfs status wait timer is 960 * running. 961 * @dfs_average_params_sent: Indicates if host has sent the average 962 * radar parameters. 963 * @dfs_no_res_from_fw: Indicates no response from fw. 964 * @dfs_spoof_check_failed: Indicates if the spoof check has failed. 965 * @dfs_spoof_test_done: Indicates if the sppof test is done. 966 * @dfs_seg_id: Segment ID of the radar hit channel. 967 * @dfs_false_radar_found: Indicates if false radar is found. 968 * @dfs_status_timeout_override: Used to change the timeout value of 969 * dfs_host_wait_timer. 970 */ 971 struct wlan_dfs { 972 uint32_t dfs_debug_mask; 973 int16_t dfs_curchan_radindex; 974 int16_t dfs_extchan_radindex; 975 uint32_t dfsdomain; 976 uint32_t dfs_proc_phyerr; 977 978 STAILQ_HEAD(, dfs_event) dfs_eventq; 979 qdf_spinlock_t dfs_eventqlock; 980 981 STAILQ_HEAD(, dfs_event) dfs_radarq; 982 qdf_spinlock_t dfs_radarqlock; 983 984 STAILQ_HEAD(, dfs_event) dfs_arq; 985 qdf_spinlock_t dfs_arqlock; 986 987 struct dfs_ar_state dfs_ar_state; 988 struct dfs_state dfs_radar[DFS_NUM_RADAR_STATES]; 989 struct dfs_filtertype *dfs_radarf[DFS_MAX_RADAR_TYPES]; 990 struct dfs_info dfs_rinfo; 991 struct dfs_bin5radars *dfs_b5radars; 992 int8_t **dfs_ftindextable; 993 struct dfs_nolelem *dfs_nol; 994 int dfs_nol_count; 995 struct wlan_dfs_phyerr_param dfs_defaultparams; 996 struct dfs_stats wlan_dfs_stats; 997 struct dfs_pulseline *pulses; 998 struct dfs_event *events; 999 1000 uint32_t wlan_radar_tasksched:1, 1001 wlan_dfswait:1, 1002 wlan_dfstest:1; 1003 struct wlan_dfs_caps dfs_caps; 1004 uint8_t wlan_dfstest_ieeechan; 1005 uint32_t wlan_dfs_cac_time; 1006 uint32_t wlan_dfstesttime; 1007 os_timer_t wlan_dfswaittimer; 1008 os_timer_t wlan_dfstesttimer; 1009 os_timer_t wlan_dfs_debug_timer; 1010 uint8_t dfs_bangradar; 1011 bool dfs_second_segment_bangradar; 1012 bool is_radar_found_on_secondary_seg; 1013 bool is_radar_during_precac; 1014 qdf_spinlock_t dfs_precac_lock; 1015 bool dfs_precac_enable; 1016 uint8_t dfs_precac_secondary_freq; 1017 uint8_t dfs_precac_primary_freq; 1018 uint8_t dfs_precac_timer_running; 1019 uint8_t dfs_defer_precac_channel_change; 1020 uint8_t dfs_pre_cac_timeout_channel_change:1; 1021 os_timer_t wlan_dfs_task_timer; 1022 int dur_multiplier; 1023 uint16_t wlan_dfs_isdfsregdomain; 1024 int wlan_dfs_false_rssi_thres; 1025 int wlan_dfs_peak_mag; 1026 struct dfs_event_log radar_log[DFS_EVENT_LOG_SIZE]; 1027 int dfs_event_log_count; 1028 int dfs_event_log_on; 1029 int dfs_phyerr_count; 1030 int dfs_phyerr_reject_count; 1031 int dfs_phyerr_queued_count; 1032 int dfs_phyerr_freq_min; 1033 int dfs_phyerr_freq_max; 1034 int dfs_phyerr_w53_counter; 1035 int dfs_pri_multiplier; 1036 int wlan_dfs_nol_timeout; 1037 bool update_nol; 1038 uint32_t dfs_seq_num; 1039 int dfs_nol_event[DFS_CHAN_MAX]; 1040 os_timer_t dfs_nol_timer; 1041 1042 TAILQ_HEAD(, dfs_nolelem) dfs_nol_free_list; 1043 qdf_work_t dfs_nol_elem_free_work; 1044 1045 os_timer_t dfs_cac_timer; 1046 os_timer_t dfs_cac_valid_timer; 1047 int dfs_cac_timeout_override; 1048 uint8_t dfs_enable:1, 1049 dfs_cac_timer_running:1, 1050 dfs_ignore_dfs:1, 1051 dfs_ignore_cac:1, 1052 dfs_cac_valid:1; 1053 uint32_t dfs_cac_valid_time; 1054 os_timer_t dfs_precac_timer; 1055 int dfs_precac_timeout_override; 1056 uint8_t dfs_num_precac_freqs; 1057 1058 TAILQ_HEAD(, dfs_precac_entry) dfs_precac_required_list; 1059 TAILQ_HEAD(, dfs_precac_entry) dfs_precac_done_list; 1060 TAILQ_HEAD(, dfs_precac_entry) dfs_precac_nol_list; 1061 1062 struct dfs_channel *dfs_curchan; 1063 struct wlan_objmgr_pdev *dfs_pdev_obj; 1064 bool dfs_is_offload_enabled; 1065 int dfs_use_nol; 1066 qdf_spinlock_t dfs_nol_lock; 1067 uint16_t tx_leakage_threshold; 1068 bool dfs_use_nol_subchannel_marking; 1069 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 1070 os_timer_t dfs_host_wait_timer; 1071 uint32_t dfs_average_pri; 1072 uint32_t dfs_average_duration; 1073 uint32_t dfs_average_sidx; 1074 uint8_t dfs_is_host_wait_running:1, 1075 dfs_average_params_sent:1, 1076 dfs_no_res_from_fw:1, 1077 dfs_spoof_check_failed:1, 1078 dfs_spoof_test_done:1; 1079 uint8_t dfs_seg_id; 1080 int dfs_false_radar_found; 1081 struct dfs_channel dfs_radar_found_chan; 1082 int dfs_status_timeout_override; 1083 #endif 1084 }; 1085 1086 /** 1087 * struct dfs_soc_priv_obj - dfs private data 1088 * @psoc: pointer to PSOC object information 1089 * @pdev: pointer to PDEV object information 1090 * @dfs_is_phyerr_filter_offload: For some chip like Rome indicates too many 1091 * phyerr packets in a short time, which causes 1092 * OS hang. If this feild is configured as true, 1093 * FW will do the pre-check, filter out some 1094 * kinds of invalid phyerrors and indicate 1095 * radar detection related information to host. 1096 */ 1097 struct dfs_soc_priv_obj { 1098 struct wlan_objmgr_psoc *psoc; 1099 struct wlan_objmgr_pdev *pdev; 1100 bool dfs_is_phyerr_filter_offload; 1101 }; 1102 1103 /** 1104 * enum DFS debug - This should match the table from if_ath.c. 1105 * @WLAN_DEBUG_DFS: Minimal DFS debug. 1106 * @WLAN_DEBUG_DFS1: Normal DFS debug. 1107 * @WLAN_DEBUG_DFS2: Maximal DFS debug. 1108 * @WLAN_DEBUG_DFS3: Matched filterID display. 1109 * @WLAN_DEBUG_DFS_PHYERR: Phy error parsing. 1110 * @WLAN_DEBUG_DFS_NOL: NOL related entries. 1111 * @WLAN_DEBUG_DFS_PHYERR_SUM: PHY error summary. 1112 * @WLAN_DEBUG_DFS_PHYERR_PKT: PHY error payload. 1113 * @WLAN_DEBUG_DFS_BIN5: BIN5 checks. 1114 * @WLAN_DEBUG_DFS_BIN5_FFT: BIN5 FFT check. 1115 * @WLAN_DEBUG_DFS_BIN5_PULSE: BIN5 pulse check. 1116 * @WLAN_DEBUG_DFS_FALSE_DET: False detection debug related prints. 1117 * @WLAN_DEBUG_DFS_FALSE_DET2: Second level check to confirm poisitive 1118 * detection. 1119 * @WLAN_DEBUG_DFS_RANDOM_CHAN: Random channel selection. 1120 */ 1121 enum { 1122 WLAN_DEBUG_DFS = 0x00000100, 1123 WLAN_DEBUG_DFS1 = 0x00000200, 1124 WLAN_DEBUG_DFS2 = 0x00000400, 1125 WLAN_DEBUG_DFS3 = 0x00000800, 1126 WLAN_DEBUG_DFS_PHYERR = 0x00001000, 1127 WLAN_DEBUG_DFS_NOL = 0x00002000, 1128 WLAN_DEBUG_DFS_PHYERR_SUM = 0x00004000, 1129 WLAN_DEBUG_DFS_PHYERR_PKT = 0x00008000, 1130 WLAN_DEBUG_DFS_BIN5 = 0x00010000, 1131 WLAN_DEBUG_DFS_BIN5_FFT = 0x00020000, 1132 WLAN_DEBUG_DFS_BIN5_PULSE = 0x00040000, 1133 WLAN_DEBUG_DFS_FALSE_DET = 0x00080000, 1134 WLAN_DEBUG_DFS_FALSE_DET2 = 0x00100000, 1135 WLAN_DEBUG_DFS_RANDOM_CHAN = 0x00200000, 1136 WLAN_DEBUG_DFS_MAX = 0x80000000, 1137 WLAN_DEBUG_DFS_ALWAYS = WLAN_DEBUG_DFS_MAX 1138 }; 1139 1140 /** 1141 * enum host dfs spoof check status. 1142 * @HOST_DFS_CHECK_PASSED: Host indicates RADAR detected and the FW 1143 * confirms it to be spoof radar to host. 1144 * @HOST_DFS_CHECK_FAILED: Host doesn't indicate RADAR detected or spoof 1145 * radar parameters by 1146 * WMI_HOST_DFS_RADAR_FOUND_CMDID doesn't match. 1147 * @HOST_DFS_STATUS_CHECK_HW_RADAR: Host indicates RADAR detected and the 1148 * FW confirms it to be real HW radar to host. 1149 */ 1150 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 1151 enum { 1152 HOST_DFS_STATUS_CHECK_PASSED = 0, 1153 HOST_DFS_STATUS_CHECK_FAILED = 1, 1154 HOST_DFS_STATUS_CHECK_HW_RADAR = 2 1155 }; 1156 #endif 1157 1158 /** 1159 * struct dfs_phy_err - DFS phy error. 1160 * @fulltsf: 64-bit TSF as read from MAC. 1161 * @is_pri: Detected on primary channel. 1162 * @is_ext: Detected on extension channel. 1163 * @is_dc: Detected at DC. 1164 * @is_early: Early detect. 1165 * @do_check_chirp: Whether to check hw_chirp/sw_chirp. 1166 * @is_hw_chirp: Hardware-detected chirp. 1167 * @is_sw_chirp: Software detected chirp. 1168 * @rs_tstamp: 32 bit TSF from RX descriptor (event). 1169 * @freq: Centre frequency of event - KHz. 1170 * @freq_lo: Lower bounds of frequency - KHz. 1171 * @freq_hi: Upper bounds of frequency - KHz. 1172 * @rssi: Pulse RSSI. 1173 * @dur: Pulse duration, raw (not uS). 1174 * @seg_id: HT80_80/HT160 use. 1175 * @sidx: Seg index. 1176 * @freq_offset_khz: Freq offset in KHz. 1177 * @peak_mag: Peak mag. 1178 * @total_gain: Total gain. 1179 * @mb_gain: Mb gain. 1180 * @relpwr_db: Relpower in DB. 1181 * @pulse_delta_diff: Pulse delta diff. 1182 * @pulse_delta_peak: Pulse delta peak. 1183 * @pulse_psidx_diff: Pulse psidx diff. 1184 * 1185 * Chirp notes! 1186 * 1187 * Pre-Sowl chips don't do FFT reports, so chirp pulses simply show up 1188 * as long duration pulses. 1189 * 1190 * The bin5 checking code would simply look for a chirp pulse of the correct 1191 * duration (within MIN_BIN5_DUR and MAX_BIN5_DUR) and add it to the "chirp" 1192 * pattern. 1193 * 1194 * For Sowl and later, an FFT was done on longer duration frames. If those 1195 * frames looked like a chirp, their duration was adjusted to fall within 1196 * the chirp duration limits. If the pulse failed the chirp test (it had 1197 * no FFT data or the FFT didn't meet the chirping requirements) then the 1198 * pulse duration was adjusted to be greater than MAX_BIN5_DUR, so it 1199 * would always fail chirp detection. 1200 * 1201 * This is pretty horrible. 1202 * 1203 * The eventual goal for chirp handling is thus: 1204 * 1205 * 1)In case someone ever wants to do chirp detection with this code on 1206 * chips that don't support chirp detection, you can still do it based 1207 * on pulse duration. That's your problem to solve. 1208 * 1209 * 2)For chips that do hardware chirp detection or FFT, the "do_check_chirp" 1210 * bit should be set. 1211 * 1212 * 3)Then, either is_hw_chirp or is_sw_chirp is set, indicating that 1213 * the hardware or software post-processing of the chirp event found 1214 * that indeed it was a chirp. 1215 * 1216 * 4)Finally, the bin5 code should just check whether the chirp bits are 1217 * set and behave appropriately, falling back onto the duration checks 1218 * if someone wishes to use this on older hardware (or with disabled 1219 * FFTs, for whatever reason.) 1220 * 1221 * XXX TODO: 1222 * 1223 * 1)add duration in uS and raw duration, so the PHY error parsing 1224 * code is responsible for doing the duration calculation; 1225 * 2)add ts in raw and corrected, so the PHY error parsing 1226 * code is responsible for doing the offsetting, not the radar 1227 * event code. 1228 */ 1229 struct dfs_phy_err { 1230 uint64_t fulltsf; 1231 uint32_t is_pri:1, 1232 is_ext:1, 1233 is_dc:1, 1234 is_early:1, 1235 do_check_chirp:1, 1236 is_hw_chirp:1, 1237 is_sw_chirp:1; 1238 uint32_t rs_tstamp; 1239 uint32_t freq; 1240 uint32_t freq_lo; 1241 uint32_t freq_hi; 1242 uint8_t rssi; 1243 uint8_t dur; 1244 uint8_t seg_id; 1245 int sidx; 1246 u_int freq_offset_khz; 1247 int peak_mag; 1248 int total_gain; 1249 int mb_gain; 1250 int relpwr_db; 1251 uint8_t pulse_delta_diff; 1252 int8_t pulse_delta_peak; 1253 int16_t pulse_psidx_diff; 1254 }; 1255 1256 /** 1257 * struct rx_radar_status - Parsed radar status 1258 * @raw_tsf: Raw tsf 1259 * @tsf_offset: TSF offset. 1260 * @rssi: RSSI. 1261 * @pulse_duration: Pulse duration. 1262 * @is_chirp: Is chirp. 1263 * @delta_peak: Delta peak. 1264 * @delta_diff: Delta diff. 1265 * @sidx: Starting frequency. 1266 * @freq_offset: Frequency offset. 1267 * @agc_total_gain: AGC total gain. 1268 * @agc_mb_gain: AGC MB gain. 1269 */ 1270 struct rx_radar_status { 1271 uint32_t raw_tsf; 1272 uint32_t tsf_offset; 1273 int rssi; 1274 int pulse_duration; 1275 int is_chirp:1; 1276 int delta_peak; 1277 int delta_diff; 1278 int sidx; 1279 int freq_offset; /* in KHz */ 1280 int agc_total_gain; 1281 int agc_mb_gain; 1282 }; 1283 1284 /** 1285 * struct rx_search_fft_report - FFT report. 1286 * @total_gain_db: Total gain in Db. 1287 * @base_pwr_db: Base power in Db. 1288 * @fft_chn_idx: FFT channel index. 1289 * @peak_sidx: Peak sidx. 1290 * @relpwr_db: Real power in Db. 1291 * @avgpwr_db: Average power in Db. 1292 * @peak_mag: Peak Mag. 1293 * @num_str_bins_ib: Num dtr BINs IB 1294 * @seg_id: Segment ID 1295 */ 1296 struct rx_search_fft_report { 1297 uint32_t total_gain_db; 1298 uint32_t base_pwr_db; 1299 int fft_chn_idx; 1300 int peak_sidx; 1301 int relpwr_db; 1302 int avgpwr_db; 1303 int peak_mag; 1304 int num_str_bins_ib; 1305 int seg_id; 1306 }; 1307 1308 /** 1309 * dfs_process_radarevent() - process the radar event generated for a pulse. 1310 * @dfs: Pointer to wlan_dfs structure. 1311 * @chan: Current channel. 1312 * 1313 * There is currently no way to specify that a radar event has occurred on 1314 * a specific channel, so the current methodology is to mark both the pri 1315 * and ext channels as being unavailable. This should be fixed for 802.11ac 1316 * or we'll quickly run out of valid channels to use. 1317 * 1318 * If Radar found, this marks the channel (and the extension channel, if HT40) 1319 * as having seen a radar event. It marks CHAN_INTERFERENCE and will add it to 1320 * the local NOL implementation. This is only done for 'usenol=1', as the other 1321 * two modes don't do radar notification or CAC/CSA/NOL; it just notes there 1322 * was a radar. 1323 */ 1324 void dfs_process_radarevent(struct wlan_dfs *dfs, 1325 struct dfs_channel *chan); 1326 1327 /** 1328 * dfs_nol_addchan() - Add channel to NOL. 1329 * @dfs: Pointer to wlan_dfs structure. 1330 * @freq: frequency to add to NOL. 1331 * @dfs_nol_timeout: NOL timeout. 1332 */ 1333 void dfs_nol_addchan(struct wlan_dfs *dfs, 1334 uint16_t freq, 1335 uint32_t dfs_nol_timeout); 1336 1337 /** 1338 * dfs_get_nol() - Get NOL. 1339 * @dfs: Pointer to wlan_dfs structure. 1340 * @dfs_nol: Pointer to dfsreq_nolelem structure to save the channels from NOL. 1341 * @nchan: Number of channels. 1342 */ 1343 void dfs_get_nol(struct wlan_dfs *dfs, 1344 struct dfsreq_nolelem *dfs_nol, 1345 int *nchan); 1346 1347 /** 1348 * dfs_set_nol() - Set NOL. 1349 * @dfs: Pointer to wlan_dfs structure. 1350 * @dfs_nol: Pointer to dfsreq_nolelem structure. 1351 * @nchan: Number of channels. 1352 */ 1353 void dfs_set_nol(struct wlan_dfs *dfs, 1354 struct dfsreq_nolelem *dfs_nol, 1355 int nchan); 1356 1357 /** 1358 * dfs_nol_update() - NOL update 1359 * @dfs: Pointer to wlan_dfs structure. 1360 * 1361 * Notify the driver/umac that it should update the channel radar/NOL flags 1362 * based on the current NOL list. 1363 */ 1364 void dfs_nol_update(struct wlan_dfs *dfs); 1365 1366 /** 1367 * dfs_nol_timer_cleanup() - NOL timer cleanup. 1368 * @dfs: Pointer to wlan_dfs structure. 1369 * 1370 * Cancels the NOL timer and frees the NOL elements. 1371 */ 1372 void dfs_nol_timer_cleanup(struct wlan_dfs *dfs); 1373 1374 /** 1375 * dfs_nol_workqueue_cleanup() - Flushes NOL workqueue. 1376 * @dfs: Pointer to wlan_dfs structure. 1377 * 1378 * Flushes the NOL workqueue. 1379 */ 1380 void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs); 1381 1382 /** 1383 * dfs_retain_bin5_burst_pattern() - Retain the BIN5 burst pattern. 1384 * @dfs: Pointer to wlan_dfs structure. 1385 * @diff_ts: Timestamp diff. 1386 * @old_dur: Old duration. 1387 */ 1388 uint8_t dfs_retain_bin5_burst_pattern(struct wlan_dfs *dfs, 1389 uint32_t diff_ts, 1390 uint8_t old_dur); 1391 1392 /** 1393 * dfs_bin5_check_pulse() - BIN5 check pulse. 1394 * @dfs: Pointer to wlan_dfs structure. 1395 * @re: Pointer to dfs_event structure. 1396 * @br: Pointer to dfs_bin5radars structure. 1397 * 1398 * Reject the pulse if: 1399 * 1) It's outside the RSSI threshold; 1400 * 2) It's outside the pulse duration; 1401 * 3) It's been verified by HW/SW chirp checking 1402 * and neither of those found a chirp. 1403 */ 1404 int dfs_bin5_check_pulse(struct wlan_dfs *dfs, 1405 struct dfs_event *re, 1406 struct dfs_bin5radars *br); 1407 1408 /** 1409 * dfs_bin5_addpulse() - BIN5 add pulse. 1410 * @dfs: Pointer to wlan_dfs structure. 1411 * @br: Pointer to dfs_bin5radars structure. 1412 * @re: Pointer to dfs_event structure. 1413 * @thists: Timestamp. 1414 */ 1415 int dfs_bin5_addpulse(struct wlan_dfs *dfs, 1416 struct dfs_bin5radars *br, 1417 struct dfs_event *re, 1418 uint64_t thists); 1419 1420 /** 1421 * dfs_bin5_check() - BIN5 check. 1422 * @dfs: Pointer to wlan_dfs structure. 1423 * 1424 * If the dfs structure is NULL (which should be illegal if everyting is working 1425 * properly, then signify that a bin5 radar was found. 1426 */ 1427 int dfs_bin5_check(struct wlan_dfs *dfs); 1428 1429 /** 1430 * dfs_check_chirping() - Check chirping. 1431 * @dfs: Pointer to wlan_dfs structure. 1432 * @buf: Phyerr buffer 1433 * @datalen: Phyerr buf length 1434 * @is_ctl: detected on primary channel. 1435 * @is_ext: detected on extension channel. 1436 * @slope: Slope 1437 * @is_dc: DC found 1438 * 1439 * This examines the FFT data contained in the PHY error information to figure 1440 * out whether the pulse is moving across frequencies. 1441 */ 1442 int dfs_check_chirping(struct wlan_dfs *dfs, 1443 void *buf, 1444 uint16_t datalen, 1445 int is_ctl, 1446 int is_ext, 1447 int *slope, 1448 int *is_dc); 1449 1450 /** 1451 * dfs_get_random_bin5_dur() - Get random BIN5 duration. 1452 * @dfs: Pointer to wlan_dfs structure. 1453 * @tstamp: Timestamp. 1454 * 1455 * Chirping pulses may get cut off at DC and report lower durations. 1456 * This function will compute a suitable random duration for each pulse. 1457 * Duration must be between 50 and 100 us, but remember that in 1458 * wlan_process_phyerr() which calls this function, we are dealing with the 1459 * HW reported duration (unconverted). dfs_process_radarevent() will 1460 * actually convert the duration into the correct value. 1461 * This function doesn't take into account whether the hardware 1462 * is operating in 5GHz fast clock mode or not. 1463 * And this function doesn't take into account whether the hardware 1464 * is peregrine or not. 1465 */ 1466 int dfs_get_random_bin5_dur(struct wlan_dfs *dfs, 1467 uint64_t tstamp); 1468 1469 /** 1470 * dfs_print_delayline() - Prints delayline. 1471 * @dfs: Pointer to wlan_dfs structure. 1472 * @dl: Pointer to dfs_delayline structure. 1473 */ 1474 void dfs_print_delayline(struct wlan_dfs *dfs, 1475 struct dfs_delayline *dl); 1476 1477 /** 1478 * dfs_print_nol() - Print NOL elements. 1479 * @dfs: Pointer to wlan_dfs structure. 1480 */ 1481 void dfs_print_nol(struct wlan_dfs *dfs); 1482 1483 /** 1484 * dfs_print_filter() - Prints the filter. 1485 * @dfs: Pointer to wlan_dfs structure. 1486 * @rf: Pointer to dfs_filter structure. 1487 */ 1488 void dfs_print_filter(struct wlan_dfs *dfs, 1489 struct dfs_filter *rf); 1490 1491 /** 1492 * dfs_getchanstate() - Get chan state. 1493 * @dfs: Pointer to wlan_dfs structure. 1494 * @index: To save the index of dfs_radar[] 1495 * @ext_chan_flag: Extension channel flag; 1496 */ 1497 struct dfs_state *dfs_getchanstate(struct wlan_dfs *dfs, 1498 uint8_t *index, 1499 int ext_ch_flag); 1500 1501 /** 1502 * dfs_round() - DFS found. 1503 * @val: Convert durations to TSF ticks. 1504 * 1505 * Return: TSF ticks. 1506 */ 1507 uint32_t dfs_round(int32_t val); 1508 1509 /** 1510 * dfs_reset_alldelaylines() - Reset alldelaylines. 1511 * @dfs: Pointer to wlan_dfs structure. 1512 */ 1513 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1514 void dfs_reset_alldelaylines(struct wlan_dfs *dfs); 1515 #else 1516 static inline void dfs_reset_alldelaylines(struct wlan_dfs *dfs) 1517 { 1518 } 1519 #endif 1520 1521 /** 1522 * dfs_reset_delayline() - Clear only a single delay line. 1523 * @dl: Pointer to dfs_delayline structure. 1524 */ 1525 void dfs_reset_delayline(struct dfs_delayline *dl); 1526 1527 /** 1528 * dfs_reset_filter_delaylines() - Reset filter delaylines. 1529 * @dft: Pointer to dfs_filtertype structure. 1530 */ 1531 void dfs_reset_filter_delaylines(struct dfs_filtertype *dft); 1532 1533 /** 1534 * dfs_reset_radarq() - Reset radar queue. 1535 * @dfs: Pointer to wlan_dfs structure. 1536 */ 1537 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1538 void dfs_reset_radarq(struct wlan_dfs *dfs); 1539 #else 1540 static inline void dfs_reset_radarq(struct wlan_dfs *dfs) 1541 { 1542 } 1543 #endif 1544 1545 /** 1546 * dfs_add_pulse() - Adds pulse to the queue. 1547 * @dfs: Pointer to wlan_dfs structure. 1548 * @rf: Pointer to dfs_filter structure. 1549 * @re: Pointer to dfs_event structure. 1550 * @deltaT: deltaT value. 1551 * @this_ts: Last time stamp. 1552 */ 1553 void dfs_add_pulse(struct wlan_dfs *dfs, 1554 struct dfs_filter *rf, 1555 struct dfs_event *re, 1556 uint32_t deltaT, 1557 uint64_t this_ts); 1558 1559 /** 1560 * dfs_bin_check() - BIN check 1561 * @dfs: Pointer to wlan_dfs structure. 1562 * @rf: Pointer to dfs_filter structure. 1563 * @deltaT: deltaT value. 1564 * @width: Width 1565 * @ext_chan_flag: Extension channel flag. 1566 */ 1567 int dfs_bin_check(struct wlan_dfs *dfs, 1568 struct dfs_filter *rf, 1569 uint32_t deltaT, 1570 uint32_t dur, 1571 int ext_chan_flag); 1572 1573 /** 1574 * dfs_bin_pri_check() - BIN PRI check 1575 * @dfs: Pointer to wlan_dfs structure. 1576 * @rf: Pointer to dfs_filter structure. 1577 * @dl: Pointer to dfs_delayline structure. 1578 * @score: Primary score. 1579 * @refpri: Current "filter" time for start of pulse in usecs. 1580 * @refdur: Duration value. 1581 * @ext_chan_flag: Extension channel flag. 1582 * @fundamentalpri: Highest PRI. 1583 */ 1584 int dfs_bin_pri_check(struct wlan_dfs *dfs, 1585 struct dfs_filter *rf, 1586 struct dfs_delayline *dl, 1587 uint32_t score, 1588 uint32_t refpri, 1589 uint32_t refdur, 1590 int ext_chan_flag, 1591 int fundamentalpri); 1592 1593 /** 1594 * dfs_staggered_check() - Detection implementation for staggered PRIs. 1595 * @dfs: Pointer to wlan_dfs structure. 1596 * @rf: Pointer to dfs_filter structure. 1597 * @deltaT: Delta of the Timestamp. 1598 * @width: Duration of radar pulse. 1599 * 1600 * Return: 1 on success and 0 on failure. 1601 */ 1602 int dfs_staggered_check(struct wlan_dfs *dfs, 1603 struct dfs_filter *rf, 1604 uint32_t deltaT, 1605 uint32_t width); 1606 1607 /** 1608 * dfs_get_pri_margin() - Get Primary margin. 1609 * @dfs: Pointer to wlan_dfs structure. 1610 * @is_extchan_detect: Extension channel detect. 1611 * @is_fixed_pattern: Fixed pattern. 1612 * 1613 * For the extension channel, if legacy traffic is present, we see a lot of 1614 * false alarms, so make the PRI margin narrower depending on the busy % for 1615 * the extension channel. 1616 * 1617 * Return: Returns pri_margin. 1618 */ 1619 int dfs_get_pri_margin(struct wlan_dfs *dfs, 1620 int is_extchan_detect, 1621 int is_fixed_pattern); 1622 1623 /** 1624 * dfs_get_filter_threshold() - Get filter threshold. 1625 * @dfs: Pointer to wlan_dfs structure. 1626 * @rf: Pointer to dfs_filter structure. 1627 * @is_extchan_detect: Extension channel detect. 1628 * 1629 * For the extension channel, if legacy traffic is present, we see a lot of 1630 * false alarms, so make the thresholds higher depending on the busy % for the 1631 * extension channel. 1632 * 1633 * Return: Returns threshold. 1634 */ 1635 int dfs_get_filter_threshold(struct wlan_dfs *dfs, 1636 struct dfs_filter *rf, 1637 int is_extchan_detect); 1638 1639 /** 1640 * dfs_process_ar_event() - Process the ar event. 1641 * @dfs: Pointer to wlan_dfs structure. 1642 * @chan: Current channel structure. 1643 */ 1644 void dfs_process_ar_event(struct wlan_dfs *dfs, 1645 struct dfs_channel *chan); 1646 1647 /** 1648 * dfs_reset_ar() - resets the ar state. 1649 * @dfs: pointer to wlan_dfs structure. 1650 */ 1651 void dfs_reset_ar(struct wlan_dfs *dfs); 1652 1653 /** 1654 * dfs_reset_arq() - resets the ar queue. 1655 * @dfs: pointer to wlan_dfs structure. 1656 */ 1657 void dfs_reset_arq(struct wlan_dfs *dfs); 1658 1659 /** 1660 * dfs_is_radar_enabled() - check if radar detection is enabled. 1661 * @dfs: Pointer to wlan_dfs structure. 1662 * @ignore_dfs: if 1 then radar detection is disabled.. 1663 */ 1664 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1665 void dfs_is_radar_enabled(struct wlan_dfs *dfs, 1666 int *ignore_dfs); 1667 #else 1668 static inline void dfs_is_radar_enabled(struct wlan_dfs *dfs, 1669 int *ignore_dfs) 1670 { 1671 } 1672 #endif 1673 1674 /** 1675 * dfs_process_phyerr_bb_tlv() - Parses the PHY error and populates the 1676 * dfs_phy_err struct. 1677 * @dfs: Pointer to wlan_dfs structure. 1678 * @buf: Phyerr buffer 1679 * @datalen: Phyerr buf len 1680 * @rssi: RSSI 1681 * @ext_rssi: Extension RSSI. 1682 * @rs_tstamp: Time stamp. 1683 * @fulltsf: TSF64. 1684 * @e: Pointer to dfs_phy_err structure. 1685 * 1686 * Return: Returns 1. 1687 */ 1688 int dfs_process_phyerr_bb_tlv(struct wlan_dfs *dfs, 1689 void *buf, 1690 uint16_t datalen, 1691 uint8_t rssi, 1692 uint8_t ext_rssi, 1693 uint32_t rs_tstamp, 1694 uint64_t fulltsf, 1695 struct dfs_phy_err *e); 1696 1697 /** 1698 * dfs_reset() - DFS reset 1699 * @dfs: Pointer to wlan_dfs structure. 1700 */ 1701 void dfs_reset(struct wlan_dfs *dfs); 1702 1703 /** 1704 * dfs_radar_enable() - Enables the radar. 1705 * @dfs: Pointer to wlan_dfs structure. 1706 * @no_cac: If no_cac is 0, it cancels the CAC. 1707 */ 1708 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1709 void dfs_radar_enable(struct wlan_dfs *dfs, 1710 int no_cac, uint32_t opmode); 1711 #else 1712 static inline void dfs_radar_enable(struct wlan_dfs *dfs, 1713 int no_cac, uint32_t opmode) 1714 { 1715 } 1716 #endif 1717 1718 /** 1719 * dfs_process_phyerr() - Process phyerr. 1720 * @dfs: Pointer to wlan_dfs structure. 1721 * @buf: Phyerr buffer. 1722 * @datalen: phyerr buffer length. 1723 * @r_rssi: RSSI. 1724 * @r_ext_rssi: Extension channel RSSI. 1725 * @r_rs_tstamp: Timestamp. 1726 * @r_fulltsf: TSF64. 1727 */ 1728 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1729 void dfs_process_phyerr(struct wlan_dfs *dfs, 1730 void *buf, 1731 uint16_t datalen, 1732 uint8_t r_rssi, 1733 uint8_t r_ext_rssi, 1734 uint32_t r_rs_tstamp, 1735 uint64_t r_fulltsf); 1736 #else 1737 static inline void dfs_process_phyerr(struct wlan_dfs *dfs, 1738 void *buf, 1739 uint16_t datalen, 1740 uint8_t r_rssi, 1741 uint8_t r_ext_rssi, 1742 uint32_t r_rs_tstamp, 1743 uint64_t r_fulltsf) 1744 { 1745 } 1746 #endif 1747 1748 #ifdef QCA_MCL_DFS_SUPPORT 1749 /** 1750 * dfs_process_phyerr_filter_offload() - Process radar event. 1751 * @dfs: Pointer to wlan_dfs structure. 1752 * @wlan_radar_event: Pointer to radar_event_info structure. 1753 * 1754 * Return: None 1755 */ 1756 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) 1757 void dfs_process_phyerr_filter_offload(struct wlan_dfs *dfs, 1758 struct radar_event_info *wlan_radar_event); 1759 #else 1760 static inline void dfs_process_phyerr_filter_offload( 1761 struct wlan_dfs *dfs, 1762 struct radar_event_info *wlan_radar_event) 1763 { 1764 } 1765 #endif 1766 #endif 1767 1768 /** 1769 * dfs_get_radars() - Based on the chipset, calls init radar table functions. 1770 * @dfs: Pointer to wlan_dfs structure. 1771 */ 1772 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1773 void dfs_get_radars(struct wlan_dfs *dfs); 1774 #else 1775 static inline void dfs_get_radars(struct wlan_dfs *dfs) 1776 { 1777 } 1778 #endif 1779 1780 /** 1781 * dfs_attach() - Wrapper function to allocate memory for wlan_dfs members. 1782 * @dfs: Pointer to wlan_dfs structure. 1783 */ 1784 int dfs_attach(struct wlan_dfs *dfs); 1785 1786 1787 /** 1788 * dfs_create_object() - Creates DFS object. 1789 * @dfs: Pointer to wlan_dfs structure. 1790 */ 1791 int dfs_create_object(struct wlan_dfs **dfs); 1792 1793 /** 1794 * dfs_destroy_object() - Destroys the DFS object. 1795 * @dfs: Pointer to wlan_dfs structure. 1796 */ 1797 void dfs_destroy_object(struct wlan_dfs *dfs); 1798 1799 /** 1800 * dfs_detach() - Wrapper function to free dfs variables. 1801 * @dfs: Pointer to wlan_dfs structure. 1802 */ 1803 void dfs_detach(struct wlan_dfs *dfs); 1804 1805 /** 1806 * dfs_cac_valid_reset() - Cancels the dfs_cac_valid_timer timer. 1807 * @dfs: Pointer to wlan_dfs structure. 1808 * @prevchan_ieee: Prevchan number. 1809 * @prevchan_flags: Prevchan flags. 1810 */ 1811 void dfs_cac_valid_reset(struct wlan_dfs *dfs, 1812 uint8_t prevchan_ieee, 1813 uint32_t prevchan_flags); 1814 1815 /** 1816 * dfs_cac_stop() - Clear the AP CAC timer. 1817 * @dfs: Pointer to wlan_dfs structure. 1818 */ 1819 void dfs_cac_stop(struct wlan_dfs *dfs); 1820 1821 /** 1822 * dfs_cancel_cac_timer() - Cancels the CAC timer. 1823 * @dfs: Pointer to wlan_dfs structure. 1824 */ 1825 void dfs_cancel_cac_timer(struct wlan_dfs *dfs); 1826 1827 /** 1828 * dfs_start_cac_timer() - Starts the CAC timer. 1829 * @dfs: Pointer to wlan_dfs structure. 1830 */ 1831 void dfs_start_cac_timer(struct wlan_dfs *dfs); 1832 1833 /** 1834 * dfs_set_update_nol_flag() - Sets update_nol flag. 1835 * @dfs: Pointer to wlan_dfs structure. 1836 * @val: update_nol flag. 1837 */ 1838 void dfs_set_update_nol_flag(struct wlan_dfs *dfs, 1839 bool val); 1840 1841 /** 1842 * dfs_get_update_nol_flag() - Returns update_nol flag. 1843 * @dfs: Pointer to wlan_dfs structure. 1844 */ 1845 bool dfs_get_update_nol_flag(struct wlan_dfs *dfs); 1846 1847 /** 1848 * dfs_get_use_nol() - Get usenol. 1849 * @dfs: Pointer to wlan_dfs structure. 1850 */ 1851 int dfs_get_use_nol(struct wlan_dfs *dfs); 1852 1853 /** 1854 * dfs_get_nol_timeout() - Get NOL timeout. 1855 * @dfs: Pointer to wlan_dfs structure. 1856 */ 1857 int dfs_get_nol_timeout(struct wlan_dfs *dfs); 1858 1859 /** 1860 * dfs_is_ap_cac_timer_running() - Returns the dfs cac timer. 1861 * @dfs: Pointer to wlan_dfs structure. 1862 */ 1863 int dfs_is_ap_cac_timer_running(struct wlan_dfs *dfs); 1864 1865 /** 1866 * dfs_control()- Used to process ioctls related to DFS. 1867 * @dfs: Pointer to wlan_dfs structure. 1868 * @id: Command type. 1869 * @indata: Input buffer. 1870 * @insize: size of the input buffer. 1871 * @outdata: A buffer for the results. 1872 * @outsize: Size of the output buffer. 1873 */ 1874 int dfs_control(struct wlan_dfs *dfs, 1875 u_int id, 1876 void *indata, 1877 uint32_t insize, 1878 void *outdata, 1879 uint32_t *outsize); 1880 1881 /** 1882 * dfs_getnol() - Wrapper function for dfs_get_nol() 1883 * @dfs: Pointer to wlan_dfs structure. 1884 * @dfs_nolinfo: Pointer to dfsreq_nolinfo structure. 1885 */ 1886 void dfs_getnol(struct wlan_dfs *dfs, 1887 void *dfs_nolinfo); 1888 1889 /** 1890 * dfs_get_override_cac_timeout() - Get override CAC timeout value. 1891 * @dfs: Pointer to DFS object. 1892 * @cac_timeout: Pointer to save the CAC timeout value. 1893 */ 1894 int dfs_get_override_cac_timeout(struct wlan_dfs *dfs, 1895 int *cac_timeout); 1896 1897 /** 1898 * dfs_override_cac_timeout() - Override the default CAC timeout. 1899 * @dfs: Pointer to DFS object. 1900 * @cac_timeout: CAC timeout value. 1901 */ 1902 int dfs_override_cac_timeout(struct wlan_dfs *dfs, 1903 int cac_timeout); 1904 1905 /** 1906 * dfs_clear_nolhistory() - unmarks WLAN_CHAN_CLR_HISTORY_RADAR flag for 1907 * all the channels in dfs_ch_channels. 1908 * @dfs: Pointer to wlan_dfs structure. 1909 */ 1910 void dfs_clear_nolhistory(struct wlan_dfs *dfs); 1911 1912 /** 1913 * ol_if_dfs_configure() - Initialize the RADAR table for offload chipsets. 1914 * @dfs: Pointer to wlan_dfs structure. 1915 * 1916 * This is called during a channel change or regulatory domain 1917 * reset; in order to fetch the new configuration information and 1918 * program the DFS pattern matching module. 1919 * 1920 * Eventually this should be split into "fetch config" (which can 1921 * happen at regdomain selection time) and "configure DFS" (which 1922 * can happen at channel config time) so as to minimise overheads 1923 * when doing channel changes. However, this'll do for now. 1924 */ 1925 void ol_if_dfs_configure(struct wlan_dfs *dfs); 1926 1927 /** 1928 * dfs_init_radar_filters() - Init Radar filters. 1929 * @dfs: Pointer to wlan_dfs structure. 1930 * @radar_info: Pointer to wlan_dfs_radar_tab_info structure. 1931 */ 1932 int dfs_init_radar_filters(struct wlan_dfs *dfs, 1933 struct wlan_dfs_radar_tab_info *radar_info); 1934 1935 /** 1936 * dfs_get_radars_for_ar5212() - Initialize radar table for AR5212 chipsets. 1937 * @dfs: Pointer to wlan_dfs structure. 1938 */ 1939 void dfs_get_radars_for_ar5212(struct wlan_dfs *dfs); 1940 1941 /** 1942 * dfs_get_radars_for_ar5416() - Initialize radar table for AR5416 chipsets. 1943 * @dfs: Pointer to wlan_dfs structure. 1944 */ 1945 void dfs_get_radars_for_ar5416(struct wlan_dfs *dfs); 1946 1947 /** 1948 * dfs_get_radars_for_ar9300() - Initialize radar table for AR9300 chipsets. 1949 * @dfs: Pointer to wlan_dfs structure. 1950 */ 1951 void dfs_get_radars_for_ar9300(struct wlan_dfs *dfs); 1952 1953 /** 1954 * dfs_print_filters() - Print the filters. 1955 * @dfs: Pointer to wlan_dfs structure. 1956 */ 1957 void dfs_print_filters(struct wlan_dfs *dfs); 1958 1959 /** 1960 * dfs_clear_stats() - Clear stats. 1961 * @dfs: Pointer to wlan_dfs structure. 1962 */ 1963 void dfs_clear_stats(struct wlan_dfs *dfs); 1964 1965 /** 1966 * dfs_radar_disable() - Disables the radar. 1967 * @dfs: Pointer to wlan_dfs structure. 1968 */ 1969 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1970 int dfs_radar_disable(struct wlan_dfs *dfs); 1971 #else 1972 static inline int dfs_radar_disable(struct wlan_dfs *dfs) 1973 { 1974 return 0; 1975 } 1976 #endif 1977 1978 /** 1979 * dfs_get_debug_info() - Get debug info. 1980 * @dfs: Pointer to wlan_dfs structure. 1981 * @data: void pointer to the data to save dfs_proc_phyerr. 1982 */ 1983 int dfs_get_debug_info(struct wlan_dfs *dfs, 1984 void *data); 1985 1986 /** 1987 * dfs_cac_timer_init() - Initialize cac timers. 1988 * @dfs: Pointer to wlan_dfs structure. 1989 */ 1990 void dfs_cac_timer_init(struct wlan_dfs *dfs); 1991 1992 /** 1993 * dfs_cac_attach() - Initialize dfs cac variables. 1994 * @dfs: Pointer to wlan_dfs structure. 1995 */ 1996 void dfs_cac_attach(struct wlan_dfs *dfs); 1997 1998 /** 1999 * dfs_cac_timer_reset() - Cancel dfs cac timers. 2000 * @dfs: Pointer to wlan_dfs structure. 2001 */ 2002 void dfs_cac_timer_reset(struct wlan_dfs *dfs); 2003 2004 /** 2005 * dfs_nol_timer_init() - Initialize NOL timers. 2006 * @dfs: Pointer to wlan_dfs structure. 2007 */ 2008 void dfs_nol_timer_init(struct wlan_dfs *dfs); 2009 2010 /** 2011 * dfs_nol_attach() - Initialize NOL variables. 2012 * @dfs: Pointer to wlan_dfs structure. 2013 */ 2014 void dfs_nol_attach(struct wlan_dfs *dfs); 2015 2016 /** 2017 * dfs_nol_detach() - Detach NOL variables. 2018 * @dfs: Pointer to wlan_dfs structure. 2019 */ 2020 void dfs_nol_detach(struct wlan_dfs *dfs); 2021 2022 /** 2023 * dfs_print_nolhistory() - Print NOL history. 2024 * @dfs: Pointer to wlan_dfs structure. 2025 */ 2026 void dfs_print_nolhistory(struct wlan_dfs *dfs); 2027 2028 /** 2029 * dfs_stacac_stop() - Clear the STA CAC timer. 2030 * @dfs: Pointer to wlan_dfs structure. 2031 */ 2032 void dfs_stacac_stop(struct wlan_dfs *dfs); 2033 2034 /** 2035 * dfs_find_precac_secondary_vht80_chan() - Get a VHT80 channel with the 2036 * precac primary center frequency. 2037 * @dfs: Pointer to wlan_dfs structure. 2038 * @chan: Pointer to dfs channel structure. 2039 */ 2040 void dfs_find_precac_secondary_vht80_chan(struct wlan_dfs *dfs, 2041 struct dfs_channel *chan); 2042 2043 /** 2044 * dfs_phyerr_param_copy() - Function to copy src buf to dest buf. 2045 * @dst: dest buf. 2046 * @src: src buf. 2047 */ 2048 void dfs_phyerr_param_copy(struct wlan_dfs_phyerr_param *dst, 2049 struct wlan_dfs_phyerr_param *src); 2050 2051 /** 2052 * dfs_get_thresholds() - Get the threshold value. 2053 * @dfs: Pointer to wlan_dfs structure. 2054 * @param: Pointer to wlan_dfs_phyerr_param structure. 2055 */ 2056 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 2057 int dfs_get_thresholds(struct wlan_dfs *dfs, 2058 struct wlan_dfs_phyerr_param *param); 2059 #else 2060 static inline int dfs_get_thresholds(struct wlan_dfs *dfs, 2061 struct wlan_dfs_phyerr_param *param) 2062 { 2063 return 0; 2064 } 2065 #endif 2066 2067 /** 2068 * dfs_set_thresholds() - Sets the threshold value. 2069 * @dfs: Pointer to wlan_dfs structure. 2070 * @threshtype: DFS ioctl param type. 2071 * @value: Threshold value. 2072 */ 2073 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 2074 int dfs_set_thresholds(struct wlan_dfs *dfs, 2075 const uint32_t threshtype, 2076 const uint32_t value); 2077 #else 2078 static inline int dfs_set_thresholds(struct wlan_dfs *dfs, 2079 const uint32_t threshtype, 2080 const uint32_t value) 2081 { 2082 return 0; 2083 } 2084 #endif 2085 2086 /** 2087 * dfs_set_current_channel() - Set DFS current channel. 2088 * @dfs: Pointer to wlan_dfs structure. 2089 * @dfs_ch_freq: Frequency in Mhz. 2090 * @dfs_ch_flags: Channel flags. 2091 * @dfs_ch_flagext: Extended channel flags. 2092 * @dfs_ch_ieee: IEEE channel number. 2093 * @dfs_ch_vhtop_ch_freq_seg1: Channel Center frequency1. 2094 * @dfs_ch_vhtop_ch_freq_seg2: Channel Center frequency2. 2095 */ 2096 void dfs_set_current_channel(struct wlan_dfs *dfs, 2097 uint16_t dfs_ch_freq, 2098 uint64_t dfs_ch_flags, 2099 uint16_t dfs_ch_flagext, 2100 uint8_t dfs_ch_ieee, 2101 uint8_t dfs_ch_vhtop_ch_freq_seg1, 2102 uint8_t dfs_ch_vhtop_ch_freq_seg2); 2103 2104 /** 2105 * dfs_get_nol_chfreq_and_chwidth() - Get channel freq and width from NOL list. 2106 * @dfs_nol: Pointer to NOL channel entry. 2107 * @nol_chfreq: Pointer to save channel frequency. 2108 * @nol_chwidth: Pointer to save channel width. 2109 * @index: Index to dfs_nol list. 2110 */ 2111 void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, 2112 uint32_t *nol_chfreq, 2113 uint32_t *nol_chwidth, 2114 int index); 2115 2116 /** 2117 * dfs_process_phyerr_owl() - Process an Owl-style phy error. 2118 * @dfs: Pointer to wlan_dfs structure. 2119 * @buf: Phyerr buffer 2120 * @datalen: Phyerr buf len 2121 * @rssi: RSSI 2122 * @ext_rssi: Extension RSSI. 2123 * @rs_tstamp: Time stamp. 2124 * @fulltsf: TSF64. 2125 * @e: Pointer to dfs_phy_err structure. 2126 * 2127 * Return: Returns 1. 2128 */ 2129 int dfs_process_phyerr_owl(struct wlan_dfs *dfs, 2130 void *buf, 2131 uint16_t datalen, 2132 uint8_t rssi, 2133 uint8_t ext_rssi, 2134 uint32_t rs_tstamp, 2135 uint64_t fulltsf, 2136 struct dfs_phy_err *e); 2137 2138 /** 2139 * dfs_process_phyerr_sowl() -Process a Sowl/Howl style phy error. 2140 * @dfs: Pointer to wlan_dfs structure. 2141 * @buf: Phyerr buffer 2142 * @datalen: Phyerr buf len 2143 * @rssi: RSSI 2144 * @ext_rssi: Extension RSSI. 2145 * @rs_tstamp: Time stamp. 2146 * @fulltsf: TSF64. 2147 * @e: Pointer to dfs_phy_err structure. 2148 * 2149 * Return: Returns 1. 2150 */ 2151 int dfs_process_phyerr_sowl(struct wlan_dfs *dfs, 2152 void *buf, 2153 uint16_t datalen, 2154 uint8_t rssi, 2155 uint8_t ext_rssi, 2156 uint32_t rs_tstamp, 2157 uint64_t fulltsf, 2158 struct dfs_phy_err *e); 2159 2160 /** 2161 * dfs_process_phyerr_merlin() - Process a Merlin/Osprey style phy error. 2162 * dfs_phy_err struct. 2163 * @dfs: Pointer to wlan_dfs structure. 2164 * @buf: Phyerr buffer 2165 * @datalen: Phyerr buf len 2166 * @rssi: RSSI 2167 * @ext_rssi: Extension RSSI. 2168 * @rs_tstamp: Time stamp. 2169 * @fulltsf: TSF64. 2170 * @e: Pointer to dfs_phy_err structure. 2171 * 2172 * Return: Returns 1. 2173 */ 2174 int dfs_process_phyerr_merlin(struct wlan_dfs *dfs, 2175 void *buf, 2176 uint16_t datalen, 2177 uint8_t rssi, 2178 uint8_t ext_rssi, 2179 uint32_t rs_tstamp, 2180 uint64_t fulltsf, 2181 struct dfs_phy_err *e); 2182 2183 /* 2184 * __dfs_process_radarevent() - Continuation of process a radar event function. 2185 * @dfs: Pointer to wlan_dfs structure. 2186 * @ft: Pointer to dfs_filtertype structure. 2187 * @re: Pointer to dfs_event structure. 2188 * @this_ts: Timestamp. 2189 * 2190 * There is currently no way to specify that a radar event has occurred on 2191 * a specific channel, so the current methodology is to mark both the pri 2192 * and ext channels as being unavailable. This should be fixed for 802.11ac 2193 * or we'll quickly run out of valid channels to use. 2194 * 2195 * Return: If a radar event is found, return 1. Otherwise, return 0. 2196 */ 2197 void __dfs_process_radarevent(struct wlan_dfs *dfs, 2198 struct dfs_filtertype *ft, 2199 struct dfs_event *re, 2200 uint64_t this_ts, 2201 int *found, 2202 int *false_radar_found); 2203 2204 /** 2205 * bin5_rules_check_internal() - This is a extension of dfs_bin5_check(). 2206 * @dfs: Pointer to wlan_dfs structure. 2207 * @br: Pointer to dfs_bin5radars structure. 2208 * @bursts: Bursts. 2209 * @numevents: Number of events. 2210 * @prev: prev index. 2211 * @i: Index. 2212 * @this: index to br_elems[] 2213 */ 2214 void bin5_rules_check_internal(struct wlan_dfs *dfs, 2215 struct dfs_bin5radars *br, 2216 uint32_t *bursts, 2217 uint32_t *numevents, 2218 uint32_t prev, 2219 uint32_t i, 2220 uint32_t this, 2221 int *index); 2222 2223 /** 2224 * dfs_main_task_testtimer_init() - Initialize dfs task testtimer. 2225 * @dfs: Pointer to wlan_dfs structure. 2226 */ 2227 void dfs_main_task_testtimer_init(struct wlan_dfs *dfs); 2228 2229 /** 2230 * dfs_stop() - Clear dfs timers. 2231 * @dfs: Pointer to wlan_dfs structure. 2232 */ 2233 void dfs_stop(struct wlan_dfs *dfs); 2234 2235 /** 2236 * dfs_update_cur_chan_flags() - Update DFS channel flag and flagext. 2237 * @dfs: Pointer to wlan_dfs structure. 2238 * @flags: New channel flags 2239 * @flagext: New Extended flags 2240 */ 2241 void dfs_update_cur_chan_flags(struct wlan_dfs *dfs, 2242 uint64_t flags, 2243 uint16_t flagext); 2244 2245 /** 2246 * dfs_radarevent_basic_sanity() - Check basic sanity of the radar event 2247 * @dfs: Pointer to wlan_dfs structure. 2248 * @chan: Current channel. 2249 * 2250 * Return: If a radar event found on NON-DFS channel return 0. Otherwise, 2251 * return 1. 2252 */ 2253 int dfs_radarevent_basic_sanity(struct wlan_dfs *dfs, 2254 struct dfs_channel *chan); 2255 2256 /** 2257 * wlan_psoc_get_dfs_txops() - Get dfs_tx_ops pointer 2258 * @psoc: Pointer to psoc structure. 2259 * 2260 * Return: Pointer to dfs_tx_ops. 2261 */ 2262 struct wlan_lmac_if_dfs_tx_ops * 2263 wlan_psoc_get_dfs_txops(struct wlan_objmgr_psoc *psoc); 2264 2265 /** 2266 * dfs_nol_free_list() - Free NOL elements. 2267 * @dfs: Pointer to wlan_dfs structure. 2268 */ 2269 void dfs_nol_free_list(struct wlan_dfs *dfs); 2270 2271 /** 2272 * dfs_second_segment_radar_disable() - Disables the second segment radar. 2273 * @dfs: Pointer to wlan_dfs structure. 2274 * 2275 * This is called when AP detects the radar, to (potentially) disable 2276 * the radar code. 2277 * 2278 * Return: returns 0. 2279 */ 2280 int dfs_second_segment_radar_disable(struct wlan_dfs *dfs); 2281 2282 #endif /* _DFS_H_ */ 2283