1 /* 2 * Copyright (c) 2013, 2016-2019 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 #define WLAN_DFS_DATA_STRUCT_LOCK(_dfs) \ 190 qdf_spin_lock_bh(&(_dfs)->dfs_data_struct_lock) 191 #define WLAN_DFS_DATA_STRUCT_UNLOCK(_dfs) \ 192 qdf_spin_unlock_bh(&(_dfs)->dfs_data_struct_lock) 193 #define WLAN_DFS_DATA_STRUCT_LOCK_CREATE(_dfs) \ 194 qdf_spinlock_create(&(_dfs)->dfs_data_struct_lock) 195 #define WLAN_DFS_DATA_STRUCT_LOCK_DESTROY(_dfs) \ 196 qdf_spinlock_destroy(&(_dfs)->dfs_data_struct_lock) 197 198 /* Mask for time stamp from descriptor */ 199 #define DFS_TSMASK 0xFFFFFFFF 200 /* Shift for time stamp from descriptor */ 201 #define DFS_TSSHIFT 32 202 /* 64 bit TSF wrap value */ 203 #define DFS_TSF_WRAP 0xFFFFFFFFFFFFFFFFULL 204 /* TS mask for 64 bit value */ 205 #define DFS_64BIT_TSFMASK 0x0000000000007FFFULL 206 207 #define DFS_AR_RADAR_RSSI_THR 5 /* in dB */ 208 #define DFS_AR_RADAR_RESET_INT 1 /* in secs */ 209 #define DFS_AR_RADAR_MAX_HISTORY 500 210 #define DFS_AR_REGION_WIDTH 128 211 #define DFS_AR_RSSI_THRESH_STRONG_PKTS 17 /* in dB */ 212 #define DFS_AR_RSSI_DOUBLE_THRESHOLD 15 /* in dB */ 213 #define DFS_AR_MAX_NUM_ACK_REGIONS 9 214 #define DFS_AR_ACK_DETECT_PAR_THRESH 20 215 #define DFS_AR_PKT_COUNT_THRESH 20 216 217 #define DFS_MAX_DL_SIZE 64 218 #define DFS_MAX_DL_MASK 0x3F 219 220 #define DFS_NOL_TIME DFS_NOL_TIMEOUT_US 221 /* 30 minutes in usecs */ 222 223 #define DFS_WAIT_TIME (60*1000000) /* 1 minute in usecs */ 224 225 #define DFS_DISABLE_TIME (3*60*1000000) /* 3 minutes in usecs */ 226 227 #define DFS_MAX_B5_SIZE 128 228 #define DFS_MAX_B5_MASK 0x0000007F /* 128 */ 229 230 /* Max number of overlapping filters */ 231 #define DFS_MAX_RADAR_OVERLAP 16 232 233 /* Max number of dfs events which can be q'd */ 234 #define DFS_MAX_EVENTS 1024 235 236 #define DFS_RADAR_EN 0x80000000 /* Radar detect is capable */ 237 #define DFS_AR_EN 0x40000000 /* AR detect is capable */ 238 /* Radar detect in second segment is capable */ 239 #define DFS_SECOND_SEGMENT_RADAR_EN 0x20000000 240 #define DFS_MAX_RSSI_VALUE 0x7fffffff /* Max rssi value */ 241 242 #define DFS_BIN_MAX_PULSES 60 /* max num of pulses in a burst */ 243 #define DFS_BIN5_PRI_LOWER_LIMIT 990 /* us */ 244 245 /** 246 * To cover the single pusle burst case, change from 2010 us to 247 * 2010000 us. 248 */ 249 250 /** 251 * This is reverted back to 2010 as larger value causes false 252 * bin5 detect (EV76432, EV76320) 253 */ 254 #define DFS_BIN5_PRI_HIGHER_LIMIT 2010 /* us */ 255 256 #define DFS_BIN5_WIDTH_MARGIN 4 /* us */ 257 #define DFS_BIN5_RSSI_MARGIN 5 /* dBm */ 258 259 /** 260 * Following threshold is not specified but should be 261 * okay statistically. 262 */ 263 #define DFS_BIN5_BRI_LOWER_LIMIT 300000 /* us */ 264 #define DFS_BIN5_BRI_UPPER_LIMIT 12000000 /* us */ 265 266 /* Max number of pulses kept in buffer */ 267 #define DFS_MAX_PULSE_BUFFER_SIZE 1024 268 #define DFS_MAX_PULSE_BUFFER_MASK 0x3ff 269 270 #define DFS_FAST_CLOCK_MULTIPLIER (800/11) 271 #define DFS_NO_FAST_CLOCK_MULTIPLIER (80) 272 #define DFS_BIG_SIDX 10000 273 274 /* Min value of valid psidx diff */ 275 #define DFS_MIN_PSIDX_DIFF 4 276 /* Max value of valid psidx diff */ 277 #define DFS_MAX_PSIDX_DIFF 16 278 279 /** 280 * Software use: channel interference used for as AR as well as RADAR 281 * interference detection. 282 */ 283 #define CHANNEL_INTERFERENCE 0x01 284 285 #define CHANNEL_2GHZ 0x00080 /* 2 GHz spectrum channel. */ 286 #define CHANNEL_OFDM 0x00040 /* OFDM channel */ 287 #define CHANNEL_TURBO 0x00010 /* Turbo Channel */ 288 #define CHANNEL_108G (CHANNEL_2GHZ|CHANNEL_OFDM|CHANNEL_TURBO) 289 290 /* qdf_packed - denotes structure is packed. */ 291 #define qdf_packed __qdf_packed 292 293 #define SEG_ID_PRIMARY 0 294 #define SEG_ID_SECONDARY 1 295 296 /* MIN and MAX width for different regions */ 297 #define REG0_MIN_WIDTH 33 298 #define REG0_MAX_WIDTH 38 299 #define REG1_MIN_WIDTH 39 300 #define REG1_MAX_WIDTH 44 301 #define REG2_MIN_WIDTH 53 302 #define REG2_MAX_WIDTH 58 303 #define REG3_MIN_WIDTH 126 304 #define REG3_MAX_WIDTH 140 305 #define REG4_MIN_WIDTH 141 306 #define REG4_MAX_WIDTH 160 307 #define REG5_MIN_WIDTH 189 308 #define REG5_MAX_WIDTH 210 309 #define REG6_MIN_WIDTH 360 310 #define REG6_MAX_WIDTH 380 311 #define REG7_MIN_WIDTH 257 312 #define REG7_MAX_WIDTH 270 313 #define REG8_MIN_WIDTH 295 314 #define REG8_MAX_WIDTH 302 315 316 #define OVER_SAMPLING_FREQ 44000 317 #define SAMPLING_FREQ 40000 318 #define HUNDRED 100 319 #define NUM_BINS 128 320 #define THOUSAND 1000 321 322 /* ETSI11_WORLD regdmn pair id */ 323 #define ETSI11_WORLD_REGDMN_PAIR_ID 0x26 324 #define ETSI12_WORLD_REGDMN_PAIR_ID 0x28 325 #define ETSI13_WORLD_REGDMN_PAIR_ID 0x27 326 #define ETSI14_WORLD_REGDMN_PAIR_ID 0x29 327 328 /* Array offset to ETSI legacy pulse */ 329 #define ETSI_LEGACY_PULSE_ARR_OFFSET 2 330 331 #define ETSI_RADAR_EN302_502_FREQ_LOWER 5725 332 #define ETSI_RADAR_EN302_502_FREQ_UPPER 5865 333 334 #define DFS_NOL_ADD_CHAN_LOCKED(dfs, freq, timeout) \ 335 do { \ 336 WLAN_DFSNOL_LOCK(dfs); \ 337 dfs_nol_addchan(dfs, freq, timeout); \ 338 WLAN_DFSNOL_UNLOCK(dfs); \ 339 } while (0) 340 341 #define DFS_NOL_DELETE_CHAN_LOCKED(dfs, freq, chwidth) \ 342 do { \ 343 WLAN_DFSNOL_LOCK(dfs); \ 344 dfs_nol_delete(dfs, freq, chwidth); \ 345 WLAN_DFSNOL_UNLOCK(dfs); \ 346 } while (0) 347 348 #define DFS_GET_NOL_LOCKED(dfs, dfs_nol, nchan) \ 349 do { \ 350 WLAN_DFSNOL_LOCK(dfs); \ 351 dfs_get_nol(dfs, dfs_nol, nchan); \ 352 WLAN_DFSNOL_UNLOCK(dfs); \ 353 } while (0) 354 355 #define DFS_PRINT_NOL_LOCKED(dfs) \ 356 do { \ 357 WLAN_DFSNOL_LOCK(dfs); \ 358 dfs_print_nol(dfs); \ 359 WLAN_DFSNOL_UNLOCK(dfs); \ 360 } while (0) 361 362 #define DFS_NOL_FREE_LIST_LOCKED(dfs) \ 363 do { \ 364 WLAN_DFSNOL_LOCK(dfs); \ 365 dfs_nol_free_list(dfs); \ 366 WLAN_DFSNOL_UNLOCK(dfs); \ 367 } while (0) 368 369 /* Host sends the average parameters of the radar pulses and starts the status 370 * wait timer with this timeout. 371 */ 372 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 373 #define HOST_DFS_STATUS_WAIT_TIMER_MS 200 374 #endif 375 376 /* 377 * USENOL_DISABLE_NOL_HOST_AND_FW : Do not add radar hit channel to NOL 378 * in host and FW. Enable CSA on the same channel. 379 */ 380 #define USENOL_DISABLE_NOL_HOST_AND_FW 0 381 /* 382 * USENOL_ENABLE_NOL_HOST_AND_FW : Add the radar hit channel to NOL in 383 * host and FW (in case of FO). NOL timer cannot be configured by the user 384 * as FW does not allow manipulating NOL timeout. If noltimeout is configured, 385 * (say 1 min) FW will not be intimated about the configuration and hence NOL 386 * timer may elapse at different instances in host (after 1 min) and FW (after 387 * default 30 min) which could lead to DFS Violation if host tries to come up 388 * on the channel after host NOL timeout (of 1 min) as the FW would still 389 * have the channel in NOL list. 390 */ 391 #define USENOL_ENABLE_NOL_HOST_AND_FW 1 392 /* 393 * USENOL_ENABLE_NOL_HOST_DISABLE_NOL_FW : Add the radar hit channel to NOL 394 * in host. NOL timer can be configured by user. NOL in FW (for FO) is disabled. 395 */ 396 #define USENOL_ENABLE_NOL_HOST_DISABLE_NOL_FW 2 397 398 /** 399 * struct dfs_pulseparams - DFS pulse param structure. 400 * @p_time: Time for start of pulse in usecs. 401 * @p_dur: Duration of pulse in usecs. 402 * @p_rssi: RSSI of pulse. 403 * @p_seg_id: Segment id. 404 * @p_sidx: Sidx value. 405 * @p_delta_peak: Delta peak value. 406 * @p_psidx_diff: The difference in the FFT peak index between the short FFT 407 * and the first long FFT. 408 * @p_seq_num: Sequence number. 409 */ 410 struct dfs_pulseparams { 411 uint64_t p_time; 412 uint8_t p_dur; 413 uint8_t p_rssi; 414 uint8_t p_seg_id; 415 int16_t p_sidx; 416 int8_t p_delta_peak; 417 int16_t p_psidx_diff; 418 uint32_t p_seq_num; 419 } qdf_packed; 420 421 /** 422 * struct dfs_pulseline - Pulseline structure. 423 * @pl_elems[]: array of pulses in delay line. 424 * @pl_firstelem: Index of the first element. 425 * @pl_lastelem: Index of the last element. 426 * @pl_numelems: Number of elements in the delay line. 427 */ 428 struct dfs_pulseline { 429 struct dfs_pulseparams pl_elems[DFS_MAX_PULSE_BUFFER_SIZE]; 430 uint32_t pl_firstelem; 431 uint32_t pl_lastelem; 432 uint32_t pl_numelems; 433 } qdf_packed; 434 435 #define DFS_EVENT_CHECKCHIRP 0x01 /* Whether to check the chirp flag */ 436 #define DFS_EVENT_HW_CHIRP 0x02 /* hardware chirp */ 437 #define DFS_EVENT_SW_CHIRP 0x04 /* software chirp */ 438 /* Whether the event contains valid psidx diff value*/ 439 #define DFS_EVENT_VALID_PSIDX_DIFF 0x08 440 441 /* Use this only if the event has CHECKCHIRP set. */ 442 #define DFS_EVENT_ISCHIRP(e) \ 443 ((e)->re_flags & (DFS_EVENT_HW_CHIRP | DFS_EVENT_SW_CHIRP)) 444 445 /** 446 * Check if the given event is to be rejected as not possibly 447 * a chirp. This means: 448 * (a) it's a hardware or software checked chirp, and 449 * (b) the HW/SW chirp bits are both 0. 450 */ 451 #define DFS_EVENT_NOTCHIRP(e) \ 452 (((e)->re_flags & (DFS_EVENT_CHECKCHIRP)) && (!DFS_EVENT_ISCHIRP((e)))) 453 454 /** 455 * struct dfs_event - DFS event structure. 456 * @re_full_ts: 64-bit full timestamp from interrupt time. 457 * @re_ts: Original 15 bit recv timestamp. 458 * @re_rssi: Rssi of radar event. 459 * @re_dur: Duration of radar pulse. 460 * @re_chanindex: Channel of event. 461 * @re_flags: Event flags. 462 * @re_freq: Centre frequency of event, KHz. 463 * @re_freq_lo: Lower bounds of frequency, KHz. 464 * @re_freq_hi: Upper bounds of frequency, KHz. 465 * @re_seg_id: HT80_80/HT160 use. 466 * @re_sidx: Seg index. 467 * @re_freq_offset_khz: Freq offset in KHz 468 * @re_peak_mag: Peak mag. 469 * @re_total_gain: Total gain. 470 * @re_mb_gain: Mb gain. 471 * @re_relpwr_db: Relpower in db. 472 * @re_delta_diff: Delta diff. 473 * @re_delta_peak: Delta peak. 474 * @re_psidx_diff: Psidx diff. 475 * @re_list: List of radar events. 476 */ 477 struct dfs_event { 478 uint64_t re_full_ts; 479 uint32_t re_ts; 480 uint8_t re_rssi; 481 uint8_t re_dur; 482 uint8_t re_chanindex; 483 uint8_t re_flags; 484 uint32_t re_freq; 485 uint32_t re_freq_lo; 486 uint32_t re_freq_hi; 487 uint8_t re_seg_id; 488 int re_sidx; 489 u_int re_freq_offset_khz; 490 int re_peak_mag; 491 int re_total_gain; 492 int re_mb_gain; 493 int re_relpwr_db; 494 uint8_t re_delta_diff; 495 int8_t re_delta_peak; 496 int16_t re_psidx_diff; 497 498 STAILQ_ENTRY(dfs_event) re_list; 499 } qdf_packed; 500 501 #define DFS_AR_MAX_ACK_RADAR_DUR 511 502 #define DFS_AR_MAX_NUM_PEAKS 3 503 #define DFS_AR_ARQ_SIZE 2048 /* 8K AR events for buffer size */ 504 #define DFS_AR_ARQ_SEQSIZE 2049 /* Sequence counter wrap for AR */ 505 506 #define DFS_RADARQ_SIZE 512 /* 1K radar events for buffer size */ 507 #define DFS_RADARQ_SEQSIZE 513 /* Sequence counter wrap for radar */ 508 /* Number of radar channels we keep state for */ 509 #define DFS_NUM_RADAR_STATES 64 510 /* Max number radar filters for each type */ 511 #define DFS_MAX_NUM_RADAR_FILTERS 10 512 /* Number of different radar types */ 513 #define DFS_MAX_RADAR_TYPES 32 514 /* Number of filter index table rows */ 515 #define DFS_NUM_FT_IDX_TBL_ROWS 256 516 517 /* RADAR filter pattern type 1*/ 518 #define WLAN_DFS_RF_PATTERN_TYPE_1 1 519 520 /** 521 * struct dfs_ar_state - DFS AR state structure. 522 * @ar_prevwidth: Previous width. 523 * @ar_phyerrcount[]: Phy error count. 524 * @ar_acksum: Acksum. 525 * @ar_packetthreshold: Thresh to determine traffic load. 526 * @ar_parthreshold: Thresh to determine peak. 527 * @ar_radarrssi: Rssi threshold for AR event. 528 * @ar_prevtimestamp: Prev time stamp. 529 * @ar_peaklist[]: Peak list. 530 */ 531 struct dfs_ar_state { 532 uint32_t ar_prevwidth; 533 uint32_t ar_phyerrcount[DFS_AR_MAX_ACK_RADAR_DUR]; 534 uint32_t ar_acksum; 535 uint32_t ar_packetthreshold; 536 uint32_t ar_parthreshold; 537 uint32_t ar_radarrssi; 538 uint16_t ar_prevtimestamp; 539 uint16_t ar_peaklist[DFS_AR_MAX_NUM_PEAKS]; 540 }; 541 542 /** 543 * struct dfs_delayelem - Delay Element. 544 * @de_time: Current "filter" time for start of pulse in usecs. 545 * @de_dur: Duration of pulse in usecs. 546 * @de_rssi: Rssi of pulse in dB. 547 * @de_ts: Time stamp for this delay element. 548 * @de_seg_id: Segment id for HT80_80/HT160 use. 549 * @de_sidx: Sidx value. 550 * @de_delta_peak: Delta peak. 551 * @de_psidx_diff: Psidx diff. 552 * @de_seq_num: Sequence number. 553 */ 554 struct dfs_delayelem { 555 uint32_t de_time; 556 uint8_t de_dur; 557 uint8_t de_rssi; 558 uint64_t de_ts; 559 uint8_t de_seg_id; 560 int16_t de_sidx; 561 int8_t de_delta_peak; 562 int16_t de_psidx_diff; 563 uint32_t de_seq_num; 564 } qdf_packed; 565 566 /** 567 * struct dfs_delayline - DFS Delay Line. 568 * @dl_elems[]: Array of pulses in delay line. 569 * @dl_last_ts: Last timestamp the delay line was used (in usecs). 570 * @dl_firstelem: Index of the first element. 571 * @dl_lastelem: Index of the last element. 572 * @dl_numelems: Number of elements in the delay line. 573 * The following is to handle fractional PRI pulses that can cause false 574 * detection. 575 * @dl_seq_num_start: Sequence number of first pulse that was part of 576 * threshold match. 577 * @dl_seq_num_stop: Sequence number of last pulse that was part of threshold 578 * match. 579 * The following is required because the first pulse may or may not be in the 580 * delay line but we will find it iin the pulse line using dl_seq_num_second's 581 * diff_ts value. 582 * @dl_seq_num_second: Sequence number of second pulse that was part of 583 * threshold match. 584 * @dl_search_pri: We need final search PRI to identify possible fractional 585 * PRI issue. 586 * @dl_min_sidx: Minimum sidx value of pulses used to match thershold. 587 * Used for sidx spread check. 588 * @dl_max_sidx: Maximum sidx value of pulses used to match thershold. 589 * Used for sidx spread check. 590 * @dl_delta_peak_match_count: Number of pulse in the delay line that had valid 591 * delta peak value. 592 * @dl_psidx_diff_match_count: Number of pulse in the delay line that had valid 593 * psidx diff value. 594 */ 595 struct dfs_delayline { 596 struct dfs_delayelem dl_elems[DFS_MAX_DL_SIZE]; 597 uint64_t dl_last_ts; 598 uint32_t dl_firstelem; 599 uint32_t dl_lastelem; 600 uint32_t dl_numelems; 601 uint32_t dl_seq_num_start; 602 uint32_t dl_seq_num_stop; 603 uint32_t dl_seq_num_second; 604 uint32_t dl_search_pri; 605 int16_t dl_min_sidx; 606 int8_t dl_max_sidx; 607 uint8_t dl_delta_peak_match_count; 608 uint8_t dl_psidx_diff_match_count; 609 } qdf_packed; 610 611 /** 612 * struct dfs_filter - Dfs filter. 613 * @rf_dl: Delay line of pulses for this filter. 614 * @rf_numpulses: Number of pulses in the filter. 615 * @rf_minpri: Min pri to be considered for this filter. 616 * @rf_maxpri: Max pri to be considered for this filter. 617 * @rf_threshold: Match filter output threshold for radar detect. 618 * @rf_filterlen: Length (in usecs) of the filter. 619 * @rf_patterntype: Fixed or variable pattern type. 620 * @rf_fixed_pri_radar_pulse: indicates if it is a fixed pri pulse. 621 * @rf_mindur: Min duration for this radar filter. 622 * @rf_maxdur: Max duration for this radar filter. 623 * @rf_ignore_pri_window: Ignore pri window. 624 * @rf_pulseid: Unique ID corresponding to the original filter ID. 625 * To reduce false detection, look at frequency spread. For now we will use 626 * sidx spread. But for HT160 frequency spread will be a better measure. 627 * @rf_sidx_spread: Maximum SIDX value spread in a matched sequence 628 * excluding FCC Bin 5. 629 * @rf_check_delta_peak: Minimum allowed delta_peak value for a pulse to be 630 * considetred for this filter's match. 631 */ 632 struct dfs_filter { 633 struct dfs_delayline rf_dl; 634 uint32_t rf_numpulses; 635 uint32_t rf_minpri; 636 uint32_t rf_maxpri; 637 uint32_t rf_threshold; 638 uint32_t rf_filterlen; 639 uint32_t rf_patterntype; 640 uint32_t rf_fixed_pri_radar_pulse; 641 uint32_t rf_mindur; 642 uint32_t rf_maxdur; 643 uint32_t rf_ignore_pri_window; 644 uint32_t rf_pulseid; 645 uint16_t rf_sidx_spread; 646 int8_t rf_check_delta_peak; 647 } qdf_packed; 648 649 /** 650 * struct dfs_filtertype - Structure of DFS Filter type. 651 * @ft_filters[]: Array of ptrs storing addresses for struct of dfs_filter. 652 * @ft_filterdur: Duration of pulse which specifies filter type. 653 * @ft_numfilters: Num filters of this type. 654 * @ft_last_ts: Last timestamp this filtertype was used (in usecs). 655 * @ft_mindur: Min pulse duration to be considered for this filter type. 656 * @ft_maxdur: Max pulse duration to be considered for this filter type. 657 * @ft_rssithresh: Min rssi to be considered for this filter type. 658 * @ft_numpulses: Num pulses in each filter of this type. 659 * @ft_patterntype: Fixed or variable pattern type. 660 * @ft_minpri: Min pri to be considered for this type. 661 * @ft_rssimargin: Rssi threshold margin. In Turbo Mode HW reports rssi 3dB 662 * lower than in non TURBO mode. This will offset that diff. 663 */ 664 struct dfs_filtertype { 665 struct dfs_filter *ft_filters[DFS_MAX_NUM_RADAR_FILTERS]; 666 uint32_t ft_filterdur; 667 uint32_t ft_numfilters; 668 uint64_t ft_last_ts; 669 uint32_t ft_mindur; 670 uint32_t ft_maxdur; 671 uint32_t ft_rssithresh; 672 uint32_t ft_numpulses; 673 uint32_t ft_patterntype; 674 uint32_t ft_minpri; 675 uint32_t ft_rssimargin; 676 }; 677 678 /** 679 * struct dfs_channel - Channel structure for dfs component. 680 * @dfs_ch_freq: Frequency in Mhz. 681 * @dfs_ch_flags: Channel flags. 682 * @dfs_ch_flagext: Extended channel flags. 683 * @dfs_ch_ieee: IEEE channel number. 684 * @dfs_ch_vhtop_ch_freq_seg1: Channel Center frequency. 685 * @dfs_ch_vhtop_ch_freq_seg2: Channel Center frequency applicable for 80+80MHz 686 * mode of operation. 687 */ 688 struct dfs_channel { 689 uint16_t dfs_ch_freq; 690 uint64_t dfs_ch_flags; 691 uint16_t dfs_ch_flagext; 692 uint8_t dfs_ch_ieee; 693 uint8_t dfs_ch_vhtop_ch_freq_seg1; 694 uint8_t dfs_ch_vhtop_ch_freq_seg2; 695 }; 696 697 /** 698 * struct dfs_state - DFS state. 699 * @rs_chan: Channel info. 700 * @rs_chanindex: Channel index in radar structure. 701 * @rs_numradarevents: Number of radar events. 702 * @rs_param: Phy param. 703 */ 704 struct dfs_state { 705 struct dfs_channel rs_chan; 706 uint8_t rs_chanindex; 707 uint32_t rs_numradarevents; 708 struct wlan_dfs_phyerr_param rs_param; 709 }; 710 711 #define DFS_NOL_TIMEOUT_S (30*60) /* 30 minutes in seconds */ 712 #define DFS_NOL_TIMEOUT_MS (DFS_NOL_TIMEOUT_S * 1000) 713 #define DFS_NOL_TIMEOUT_US (DFS_NOL_TIMEOUT_MS * 1000) 714 715 /** 716 * struct dfs_nolelem - DFS NOL element. 717 * @nol_dfs Back pointer to dfs object. 718 * @nol_freq: Centre frequency. 719 * @nol_chwidth: Event width (MHz). 720 * @nol_start_ticks: NOL start time in OS ticks. 721 * @nol_timeout_ms: NOL timeout value in msec. 722 * @nol_timer: Per element NOL timer. 723 * @nol_next: Next element pointer. 724 */ 725 struct dfs_nolelem { 726 TAILQ_ENTRY(dfs_nolelem) nolelem_list; 727 struct wlan_dfs *nol_dfs; 728 uint32_t nol_freq; 729 uint32_t nol_chwidth; 730 unsigned long nol_start_ticks; 731 uint32_t nol_timeout_ms; 732 os_timer_t nol_timer; 733 struct dfs_nolelem *nol_next; 734 } qdf_packed; 735 736 737 /** 738 * struct dfs_info - DFS Info. 739 * @rn_ftindex: Number of different types of radars. 740 * @rn_lastfull_ts: Last 64 bit timstamp from recv interrupt. 741 * @rn_last_ts: last 15 bit ts from recv descriptor. 742 * @rn_last_unique_ts: last unique 32 bit ts from recv descriptor. 743 * @rn_ts_prefix: Prefix to prepend to 15 bit recv ts. 744 * @rn_numbin5radars: Number of bin5 radar pulses to search for. 745 * @rn_fastdivGCval: Value of fast diversity gc limit from init file. 746 * @rn_minrssithresh: Min rssi for all radar types. 747 * @rn_maxpulsedur: Max pulse width in TSF ticks. 748 * @dfs_ext_chan_busy: Ext chan busy. 749 * @ext_chan_busy_ts: Ext chan busy time. 750 * @dfs_bin5_chirp_ts: Ext bin5 chrip time. 751 * @dfs_last_bin5_dur: Last bin5 during. 752 */ 753 struct dfs_info { 754 uint32_t rn_ftindex; 755 uint64_t rn_lastfull_ts; 756 uint16_t rn_last_ts; 757 uint32_t rn_last_unique_ts; 758 uint64_t rn_ts_prefix; 759 uint32_t rn_numbin5radars; 760 uint32_t rn_fastdivGCval; 761 int32_t rn_minrssithresh; 762 uint32_t rn_maxpulsedur; 763 uint8_t dfs_ext_chan_busy; 764 uint64_t ext_chan_busy_ts; 765 uint64_t dfs_bin5_chirp_ts; 766 uint8_t dfs_last_bin5_dur; 767 } qdf_packed; 768 769 /** 770 * struct dfs_bin5elem - BIN5 elements. 771 * @be_ts: Timestamp for the bin5 element. 772 * @be_rssi: Rssi for the bin5 element. 773 * @be_dur: Duration of bin5 element. 774 */ 775 struct dfs_bin5elem { 776 uint64_t be_ts; 777 uint32_t be_rssi; 778 uint32_t be_dur; 779 }; 780 781 /** 782 * struct dfs_bin5radars - BIN5 radars. 783 * @br_elems[]: List of bin5 elems that fall within the time window. 784 * @br_firstelem: Index of the first element. 785 * @br_lastelem: Index of the last element. 786 * @br_numelems: Number of elements in the delay line. 787 * @br_pulse: Original info about bin5 pulse. 788 */ 789 struct dfs_bin5radars { 790 struct dfs_bin5elem br_elems[DFS_MAX_B5_SIZE]; 791 uint32_t br_firstelem; 792 uint32_t br_lastelem; 793 uint32_t br_numelems; 794 struct dfs_bin5pulse br_pulse; 795 }; 796 797 /** 798 * struct dfs_stats - DFS stats. 799 * @num_radar_detects: Total num. of radar detects. 800 * @num_seg_two_radar_detects: Total num. of radar detected in secondary segment 801 * @total_phy_errors: Total PHY errors. 802 * @owl_phy_errors: OWL PHY errors. 803 * @pri_phy_errors: Primary channel phy errors. 804 * @ext_phy_errors: Extension channel phy errors. 805 * @dc_phy_errors: DC PHY errors. 806 * @early_ext_phy_errors: Extension channel early radar found error. 807 * @bwinfo_errors: Bogus bandwidth info received in descriptor. 808 * @datalen_discards: data length at least three bytes of payload. 809 * @rssi_discards: RSSI is not accurate. 810 * @last_reset_tstamp: Last reset timestamp. 811 */ 812 struct dfs_stats { 813 uint32_t num_radar_detects; 814 uint32_t num_seg_two_radar_detects; 815 uint32_t total_phy_errors; 816 uint32_t owl_phy_errors; 817 uint32_t pri_phy_errors; 818 uint32_t ext_phy_errors; 819 uint32_t dc_phy_errors; 820 uint32_t early_ext_phy_errors; 821 uint32_t bwinfo_errors; 822 uint32_t datalen_discards; 823 uint32_t rssi_discards; 824 uint64_t last_reset_tstamp; 825 }; 826 827 #define DFS_EVENT_LOG_SIZE 256 828 829 /** 830 * struct dfs_event_log - DFS event log. 831 * @ts: 64-bit full timestamp from interrupt time. 832 * @diff_ts: Diff timestamp. 833 * @rssi: Rssi of radar event. 834 * @dur: Duration of radar pulse. 835 * @is_chirp: Chirp flag. 836 * @seg_id: HT80_80/HT160 use. 837 * @sidx: Seg index. 838 * @freq_offset_khz: Freq offset in KHz 839 * @peak_mag: Peak mag. 840 * @total_gain: Total gain. 841 * @mb_gain: Mb gain. 842 * @relpwr_db: Relpower in db. 843 * @delta_diff: Delta diff. 844 * @delta_peak: Delta peak. 845 * @psidx_diff: Psidx diff. 846 */ 847 848 struct dfs_event_log { 849 uint64_t ts; 850 uint32_t diff_ts; 851 uint8_t rssi; 852 uint8_t dur; 853 int is_chirp; 854 uint8_t seg_id; 855 int sidx; 856 u_int freq_offset_khz; 857 int peak_mag; 858 int total_gain; 859 int mb_gain; 860 int relpwr_db; 861 uint8_t delta_diff; 862 int8_t delta_peak; 863 int16_t psidx_diff; 864 }; 865 866 #define WLAN_DFS_RESET_TIME_S 7 867 #define WLAN_DFS_WAIT (60 + WLAN_DFS_RESET_TIME_S) /* 60 seconds */ 868 #define WLAN_DFS_WAIT_MS ((WLAN_DFS_WAIT) * 1000) /*in MS*/ 869 870 #define WLAN_DFS_WEATHER_CHANNEL_WAIT_MIN 10 /*10 minutes*/ 871 #define WLAN_DFS_WEATHER_CHANNEL_WAIT_S (WLAN_DFS_WEATHER_CHANNEL_WAIT_MIN * 60) 872 #define WLAN_DFS_WEATHER_CHANNEL_WAIT_MS \ 873 ((WLAN_DFS_WEATHER_CHANNEL_WAIT_S) * 1000) /*in MS*/ 874 875 #define WLAN_DFS_WAIT_POLL_PERIOD 2 /* 2 seconds */ 876 #define WLAN_DFS_WAIT_POLL_PERIOD_MS \ 877 ((WLAN_DFS_WAIT_POLL_PERIOD) * 1000) /*in MS*/ 878 879 #define DFS_DEBUG_TIMEOUT_S 30 /* debug timeout is 30 seconds */ 880 #define DFS_DEBUG_TIMEOUT_MS (DFS_DEBUG_TIMEOUT_S * 1000) 881 882 #define RSSI_POSSIBLY_FALSE 50 883 #define SEARCH_FFT_REPORT_PEAK_MAG_THRSH 40 884 885 #define MIN_DFS_SUBCHAN_BW 20 /* Minimum bandwidth of each subchannel. */ 886 887 #define FREQ_OFFSET_BOUNDARY_FOR_80MHZ 40 888 889 /** 890 * struct wlan_dfs - The main dfs structure. 891 * @dfs_debug_mask: Current debug bitmask. 892 * @dfs_curchan_radindex: Current channel radar index. 893 * @dfs_extchan_radindex: Extension channel radar index. 894 * @dfsdomain: Current DFS domain. 895 * @dfs_proc_phyerr: Flags for Phy Errs to process. 896 * @dfs_eventq: Q of free dfs event objects. 897 * @dfs_eventqlock: Lock for free dfs event list. 898 * @dfs_radarq: Q of radar events. 899 * @dfs_radarqlock: Lock for dfs q. 900 * @dfs_arq: Q of AR events. 901 * @dfs_arqlock: Lock for AR q. 902 * @dfs_ar_state: AR state. 903 * @dfs_radar[]: Per-Channel Radar detector state. 904 * @dfs_radarf[]: One filter for each radar pulse type. 905 * @dfs_rinfo: State vars for radar processing. 906 * @dfs_b5radars: Array of bin5 radar events. 907 * @dfs_ftindextable: Map of radar durs to filter types. 908 * @dfs_nol: Non occupancy list for radar. 909 * @dfs_nol_count: How many items? 910 * @dfs_defaultparams: Default phy params per radar state. 911 * @wlan_dfs_stats: DFS related stats. 912 * @pulses: Pulse history. 913 * @events: Events structure. 914 * @wlan_radar_tasksched: Radar task is scheduled. 915 * @wlan_dfswait: Waiting on channel for radar detect. 916 * @wlan_dfstest: Test timer in progress. 917 * @dfs_caps: Object of wlan_dfs_caps structure. 918 * @wlan_dfstest_ieeechan: IEEE chan num to return to after a dfs mute 919 * test. 920 * @wlan_dfs_cac_time: CAC period. 921 * @wlan_dfstesttime: Time to stay off chan during dfs test. 922 * @wlan_dfswaittimer: Dfs wait timer. 923 * @wlan_dfstesttimer: Dfs mute test timer. 924 * @wlan_dfs_debug_timer: Dfs debug timer. 925 * @dfs_bangradar_type: Radar simulation type. 926 * @is_radar_found_on_secondary_seg: Radar on second segment. 927 * @dfs_radar_found_for_fo: Radar found event for FO(Full Offload) is 928 * received. 929 * @is_radar_during_precac: Radar found during precac. 930 * @dfs_precac_lock: Lock to protect precac lists. 931 * @dfs_precac_enable: Enable the precac. 932 * @dfs_precac_secondary_freq: Second segment freq for precac. 933 * @dfs_precac_primary_freq: Primary freq. 934 * @dfs_precac_timer_running: Precac timer running. 935 * @dfs_defer_precac_channel_change: Defer precac channel change. 936 * @dfs_precac_preferred_chan: Channel to change after precac. 937 * @dfs_precac_inter_chan: Intermediate non-DFS channel used while 938 * doing precac. 939 * @dfs_pre_cac_timeout_channel_change: Channel change due to precac timeout. 940 * @wlan_dfs_task_timer: Dfs wait timer. 941 * @dur_multiplier: Duration multiplier. 942 * @wlan_dfs_isdfsregdomain: True when AP is in DFS domain 943 * @wlan_dfs_false_rssi_thres: False RSSI Threshold. 944 * @wlan_dfs_peak_mag: Peak mag. 945 * @radar_log[]: Radar log. 946 * @dfs_event_log_count: Event log count. 947 * @dfs_event_log_on: Event log on. 948 * @dfs_phyerr_count: Same as number of PHY radar interrupts. 949 * @dfs_phyerr_reject_count: When TLV is supported, # of radar events 950 * ignored after TLV is parsed. 951 * @dfs_phyerr_queued_count: Number of radar events queued for matching 952 * the filters. 953 * @dfs_phyerr_freq_min: Phyerr min freq. 954 * @dfs_phyerr_freq_max: Phyerr max freq. 955 * @dfs_phyerr_w53_counter: Phyerr w53 counter. 956 * @dfs_pri_multiplier: Allow pulse if they are within multiple of 957 * PRI for the radar type. 958 * @wlan_dfs_nol_timeout: NOL timeout. 959 * @update_nol: Update NOL. 960 * @dfs_seq_num: Sequence number. 961 * @dfs_nol_event[]: NOL event. 962 * @dfs_nol_timer: NOL list processing. 963 * @dfs_nol_free_list: NOL free list. 964 * @dfs_nol_elem_free_work: The work queue to free an NOL element. 965 * @dfs_cac_timer: CAC timer. 966 * @dfs_cac_valid_timer: Ignore CAC when this timer is running. 967 * @dfs_cac_timeout_override: Overridden cac timeout. 968 * @dfs_enable: DFS Enable. 969 * @dfs_cac_timer_running: DFS CAC timer running. 970 * @dfs_ignore_dfs: Ignore DFS. 971 * @dfs_ignore_cac: Ignore CAC. 972 * @dfs_cac_valid: DFS CAC valid. 973 * @dfs_cac_valid_time: Time for which CAC will be valid and will 974 * not be re-done. 975 * @dfs_precac_timer: PRECAC timer. 976 * @dfs_precac_timeout_override: Overridden precac timeout. 977 * @dfs_num_precac_freqs: Number of PreCAC VHT80 frequencies. 978 * @dfs_precac_required_list: PreCAC required list. 979 * @dfs_precac_done_list: PreCAC done list. 980 * @dfs_precac_nol_list: PreCAC NOL List. 981 * @dfs_curchan: DFS current channel. 982 * @dfs_cac_started_chan: CAC started channel. 983 * @dfs_pdev_obj: DFS pdev object. 984 * @dfs_is_offload_enabled: Set if DFS offload enabled. 985 * @dfs_use_nol: Use the NOL when radar found(default: TRUE) 986 * @dfs_nol_lock: Lock to protect nol list. 987 * @tx_leakage_threshold: Tx leakage threshold for dfs. 988 * @dfs_use_nol_subchannel_marking: Use subchannel marking logic to add only 989 * radar affected subchannel instead of all 990 * bonding channels. 991 * @dfs_host_wait_timer: The timer that is started from host after 992 * sending the average radar parameters. 993 * Before this timeout host expects its dfs 994 * status from fw. 995 * @dfs_average_pri: Average pri value of the received radar 996 * pulses. 997 * @dfs_average_duration: Average duration of the received radar 998 * pulses. 999 * @dfs_average_sidx: Average sidx of the received radar pulses. 1000 * @dfs_is_host_wait_running: Indicates if host dfs status wait timer is 1001 * running. 1002 * @dfs_average_params_sent: Indicates if host has sent the average 1003 * radar parameters. 1004 * @dfs_no_res_from_fw: Indicates no response from fw. 1005 * @dfs_spoof_check_failed: Indicates if the spoof check has failed. 1006 * @dfs_spoof_test_done: Indicates if the sppof test is done. 1007 * @dfs_status_timeout_override: Used to change the timeout value of 1008 * dfs_host_wait_timer. 1009 * @dfs_is_stadfs_enabled: Is STADFS enabled. 1010 * @dfs_min_sidx: Minimum sidx of the received radar pulses. 1011 * @dfs_max_sidx: Maximum sidx of the received radar pulses. 1012 * @dfs_seg_id: Segment ID of the radar hit channel. 1013 * @dfs_is_chirp: Radar Chirp in pulse present or not. 1014 * @dfs_bw_reduced: DFS bandwidth reduced channel bit. 1015 * @dfs_freq_offset: Frequency offset where radar was found. 1016 * @dfs_cac_aborted: DFS cac is aborted. 1017 * @dfs_disable_radar_marking: To mark or unmark NOL chan as radar hit. 1018 * @dfs_data_struct_lock: DFS data structure lock. This is to protect 1019 * all the filtering data structures. For 1020 * example: dfs_bin5radars, dfs_filtertype, 1021 * etc. 1022 * @dfs_nol_ie_bandwidth: Minimum Bandwidth of subchannels that 1023 * are added to NOL. 1024 * @dfs_nol_ie_startfreq: The centre frequency of the starting 1025 * subchannel in the current channel list 1026 * to be sent in NOL IE with RCSA. 1027 * @dfs_nol_ie_bitmap: The bitmap of radar affected subchannels 1028 * in the current channel list 1029 * to be sent in NOL IE with RCSA. 1030 * @dfs_is_rcsa_ie_sent To send or to not send RCSA IE. 1031 * @dfs_is_nol_ie_sent To send or to not send NOL IE. 1032 */ 1033 struct wlan_dfs { 1034 uint32_t dfs_debug_mask; 1035 int16_t dfs_curchan_radindex; 1036 int16_t dfs_extchan_radindex; 1037 uint32_t dfsdomain; 1038 uint32_t dfs_proc_phyerr; 1039 1040 STAILQ_HEAD(, dfs_event) dfs_eventq; 1041 qdf_spinlock_t dfs_eventqlock; 1042 1043 STAILQ_HEAD(, dfs_event) dfs_radarq; 1044 qdf_spinlock_t dfs_radarqlock; 1045 1046 STAILQ_HEAD(, dfs_event) dfs_arq; 1047 qdf_spinlock_t dfs_arqlock; 1048 1049 struct dfs_ar_state dfs_ar_state; 1050 struct dfs_state dfs_radar[DFS_NUM_RADAR_STATES]; 1051 struct dfs_filtertype *dfs_radarf[DFS_MAX_RADAR_TYPES]; 1052 struct dfs_info dfs_rinfo; 1053 struct dfs_bin5radars *dfs_b5radars; 1054 int8_t **dfs_ftindextable; 1055 struct dfs_nolelem *dfs_nol; 1056 int dfs_nol_count; 1057 struct wlan_dfs_phyerr_param dfs_defaultparams; 1058 struct dfs_stats wlan_dfs_stats; 1059 struct dfs_pulseline *pulses; 1060 struct dfs_event *events; 1061 1062 uint32_t wlan_radar_tasksched:1, 1063 wlan_dfswait:1, 1064 wlan_dfstest:1; 1065 struct wlan_dfs_caps dfs_caps; 1066 uint8_t wlan_dfstest_ieeechan; 1067 uint32_t wlan_dfs_cac_time; 1068 uint32_t wlan_dfstesttime; 1069 os_timer_t wlan_dfswaittimer; 1070 os_timer_t wlan_dfstesttimer; 1071 os_timer_t wlan_dfs_debug_timer; 1072 enum dfs_bangradar_types dfs_bangradar_type; 1073 bool is_radar_found_on_secondary_seg; 1074 bool dfs_radar_found_for_fo; 1075 bool is_radar_during_precac; 1076 qdf_spinlock_t dfs_precac_lock; 1077 bool dfs_precac_enable; 1078 uint8_t dfs_precac_secondary_freq; 1079 uint8_t dfs_precac_primary_freq; 1080 uint8_t dfs_precac_timer_running; 1081 uint8_t dfs_defer_precac_channel_change; 1082 #ifdef WLAN_DFS_PRECAC_AUTO_CHAN_SUPPORT 1083 uint8_t dfs_precac_preferred_chan; 1084 uint8_t dfs_precac_inter_chan; 1085 #endif 1086 uint8_t dfs_pre_cac_timeout_channel_change:1; 1087 os_timer_t wlan_dfs_task_timer; 1088 int dur_multiplier; 1089 uint16_t wlan_dfs_isdfsregdomain; 1090 int wlan_dfs_false_rssi_thres; 1091 int wlan_dfs_peak_mag; 1092 struct dfs_event_log radar_log[DFS_EVENT_LOG_SIZE]; 1093 int dfs_event_log_count; 1094 int dfs_event_log_on; 1095 int dfs_phyerr_count; 1096 int dfs_phyerr_reject_count; 1097 int dfs_phyerr_queued_count; 1098 int dfs_phyerr_freq_min; 1099 int dfs_phyerr_freq_max; 1100 int dfs_phyerr_w53_counter; 1101 int dfs_pri_multiplier; 1102 int wlan_dfs_nol_timeout; 1103 bool update_nol; 1104 uint32_t dfs_seq_num; 1105 int dfs_nol_event[DFS_CHAN_MAX]; 1106 os_timer_t dfs_nol_timer; 1107 1108 TAILQ_HEAD(, dfs_nolelem) dfs_nol_free_list; 1109 qdf_work_t dfs_nol_elem_free_work; 1110 1111 os_timer_t dfs_cac_timer; 1112 os_timer_t dfs_cac_valid_timer; 1113 int dfs_cac_timeout_override; 1114 uint8_t dfs_enable:1, 1115 dfs_cac_timer_running:1, 1116 dfs_ignore_dfs:1, 1117 dfs_ignore_cac:1, 1118 dfs_cac_valid:1; 1119 uint32_t dfs_cac_valid_time; 1120 os_timer_t dfs_precac_timer; 1121 int dfs_precac_timeout_override; 1122 uint8_t dfs_num_precac_freqs; 1123 #if defined(WLAN_DFS_FULL_OFFLOAD) && defined(QCA_DFS_NOL_OFFLOAD) 1124 uint8_t dfs_disable_radar_marking; 1125 #endif 1126 TAILQ_HEAD(, dfs_precac_entry) dfs_precac_required_list; 1127 TAILQ_HEAD(, dfs_precac_entry) dfs_precac_done_list; 1128 TAILQ_HEAD(, dfs_precac_entry) dfs_precac_nol_list; 1129 1130 #ifdef QCA_SUPPORT_ETSI_PRECAC_DFS 1131 TAILQ_HEAD(, dfs_etsi_precac_entry) dfs_etsiprecac_required_list; 1132 TAILQ_HEAD(, dfs_etsi_precac_entry) dfs_etsiprecac_done_list; 1133 #endif 1134 1135 struct dfs_channel *dfs_curchan; 1136 struct dfs_channel dfs_cac_started_chan; 1137 struct wlan_objmgr_pdev *dfs_pdev_obj; 1138 bool dfs_is_offload_enabled; 1139 int dfs_use_nol; 1140 qdf_spinlock_t dfs_nol_lock; 1141 uint16_t tx_leakage_threshold; 1142 bool dfs_use_nol_subchannel_marking; 1143 uint8_t dfs_spoof_test_done:1; 1144 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 1145 os_timer_t dfs_host_wait_timer; 1146 uint32_t dfs_average_pri; 1147 uint32_t dfs_average_duration; 1148 uint32_t dfs_average_sidx; 1149 uint8_t dfs_is_host_wait_running:1, 1150 dfs_average_params_sent:1, 1151 dfs_no_res_from_fw:1, 1152 dfs_spoof_check_failed:1; 1153 struct dfs_channel dfs_radar_found_chan; 1154 int dfs_status_timeout_override; 1155 #endif 1156 bool dfs_is_stadfs_enabled; 1157 int32_t dfs_min_sidx; 1158 int32_t dfs_max_sidx; 1159 uint8_t dfs_seg_id; 1160 uint8_t dfs_is_chirp; 1161 bool dfs_bw_reduced; 1162 int32_t dfs_freq_offset; 1163 bool dfs_cac_aborted; 1164 qdf_spinlock_t dfs_data_struct_lock; 1165 uint8_t dfs_nol_ie_bandwidth; 1166 uint16_t dfs_nol_ie_startfreq; 1167 uint8_t dfs_nol_ie_bitmap; 1168 bool dfs_is_rcsa_ie_sent; 1169 bool dfs_is_nol_ie_sent; 1170 }; 1171 1172 /** 1173 * struct dfs_soc_priv_obj - dfs private data 1174 * @psoc: pointer to PSOC object information 1175 * @pdev: pointer to PDEV object information 1176 * @dfs_is_phyerr_filter_offload: For some chip like Rome indicates too many 1177 * phyerr packets in a short time, which causes 1178 * OS hang. If this feild is configured as true, 1179 * FW will do the pre-check, filter out some 1180 * kinds of invalid phyerrors and indicate 1181 * radar detection related information to host. 1182 */ 1183 struct dfs_soc_priv_obj { 1184 struct wlan_objmgr_psoc *psoc; 1185 struct wlan_objmgr_pdev *pdev; 1186 bool dfs_is_phyerr_filter_offload; 1187 }; 1188 1189 /** 1190 * enum DFS debug - This should match the table from if_ath.c. 1191 * @WLAN_DEBUG_DFS: Minimal DFS debug. 1192 * @WLAN_DEBUG_DFS1: Normal DFS debug. 1193 * @WLAN_DEBUG_DFS2: Maximal DFS debug. 1194 * @WLAN_DEBUG_DFS3: Matched filterID display. 1195 * @WLAN_DEBUG_DFS_PHYERR: Phy error parsing. 1196 * @WLAN_DEBUG_DFS_NOL: NOL related entries. 1197 * @WLAN_DEBUG_DFS_PHYERR_SUM: PHY error summary. 1198 * @WLAN_DEBUG_DFS_PHYERR_PKT: PHY error payload. 1199 * @WLAN_DEBUG_DFS_BIN5: BIN5 checks. 1200 * @WLAN_DEBUG_DFS_BIN5_FFT: BIN5 FFT check. 1201 * @WLAN_DEBUG_DFS_BIN5_PULSE: BIN5 pulse check. 1202 * @WLAN_DEBUG_DFS_FALSE_DET: False detection debug related prints. 1203 * @WLAN_DEBUG_DFS_FALSE_DET2: Second level check to confirm poisitive 1204 * detection. 1205 * @WLAN_DEBUG_DFS_RANDOM_CHAN: Random channel selection. 1206 */ 1207 enum { 1208 WLAN_DEBUG_DFS = 0x00000100, 1209 WLAN_DEBUG_DFS1 = 0x00000200, 1210 WLAN_DEBUG_DFS2 = 0x00000400, 1211 WLAN_DEBUG_DFS3 = 0x00000800, 1212 WLAN_DEBUG_DFS_PHYERR = 0x00001000, 1213 WLAN_DEBUG_DFS_NOL = 0x00002000, 1214 WLAN_DEBUG_DFS_PHYERR_SUM = 0x00004000, 1215 WLAN_DEBUG_DFS_PHYERR_PKT = 0x00008000, 1216 WLAN_DEBUG_DFS_BIN5 = 0x00010000, 1217 WLAN_DEBUG_DFS_BIN5_FFT = 0x00020000, 1218 WLAN_DEBUG_DFS_BIN5_PULSE = 0x00040000, 1219 WLAN_DEBUG_DFS_FALSE_DET = 0x00080000, 1220 WLAN_DEBUG_DFS_FALSE_DET2 = 0x00100000, 1221 WLAN_DEBUG_DFS_RANDOM_CHAN = 0x00200000, 1222 WLAN_DEBUG_DFS_MAX = 0x80000000, 1223 WLAN_DEBUG_DFS_ALWAYS = WLAN_DEBUG_DFS_MAX 1224 }; 1225 1226 /** 1227 * enum host dfs spoof check status. 1228 * @HOST_DFS_CHECK_PASSED: Host indicates RADAR detected and the FW 1229 * confirms it to be spoof radar to host. 1230 * @HOST_DFS_CHECK_FAILED: Host doesn't indicate RADAR detected or spoof 1231 * radar parameters by 1232 * WMI_HOST_DFS_RADAR_FOUND_CMDID doesn't match. 1233 * @HOST_DFS_STATUS_CHECK_HW_RADAR: Host indicates RADAR detected and the 1234 * FW confirms it to be real HW radar to host. 1235 */ 1236 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 1237 enum { 1238 HOST_DFS_STATUS_CHECK_PASSED = 0, 1239 HOST_DFS_STATUS_CHECK_FAILED = 1, 1240 HOST_DFS_STATUS_CHECK_HW_RADAR = 2 1241 }; 1242 #endif 1243 1244 /** 1245 * struct dfs_phy_err - DFS phy error. 1246 * @fulltsf: 64-bit TSF as read from MAC. 1247 * @is_pri: Detected on primary channel. 1248 * @is_ext: Detected on extension channel. 1249 * @is_dc: Detected at DC. 1250 * @is_early: Early detect. 1251 * @do_check_chirp: Whether to check hw_chirp/sw_chirp. 1252 * @is_hw_chirp: Hardware-detected chirp. 1253 * @is_sw_chirp: Software detected chirp. 1254 * @rs_tstamp: 32 bit TSF from RX descriptor (event). 1255 * @freq: Centre frequency of event - KHz. 1256 * @freq_lo: Lower bounds of frequency - KHz. 1257 * @freq_hi: Upper bounds of frequency - KHz. 1258 * @rssi: Pulse RSSI. 1259 * @dur: Pulse duration, raw (not uS). 1260 * @seg_id: HT80_80/HT160 use. 1261 * @sidx: Seg index. 1262 * @freq_offset_khz: Freq offset in KHz. 1263 * @peak_mag: Peak mag. 1264 * @total_gain: Total gain. 1265 * @mb_gain: Mb gain. 1266 * @relpwr_db: Relpower in DB. 1267 * @pulse_delta_diff: Pulse delta diff. 1268 * @pulse_delta_peak: Pulse delta peak. 1269 * @pulse_psidx_diff: Pulse psidx diff. 1270 * 1271 * Chirp notes! 1272 * 1273 * Pre-Sowl chips don't do FFT reports, so chirp pulses simply show up 1274 * as long duration pulses. 1275 * 1276 * The bin5 checking code would simply look for a chirp pulse of the correct 1277 * duration (within MIN_BIN5_DUR and MAX_BIN5_DUR) and add it to the "chirp" 1278 * pattern. 1279 * 1280 * For Sowl and later, an FFT was done on longer duration frames. If those 1281 * frames looked like a chirp, their duration was adjusted to fall within 1282 * the chirp duration limits. If the pulse failed the chirp test (it had 1283 * no FFT data or the FFT didn't meet the chirping requirements) then the 1284 * pulse duration was adjusted to be greater than MAX_BIN5_DUR, so it 1285 * would always fail chirp detection. 1286 * 1287 * This is pretty horrible. 1288 * 1289 * The eventual goal for chirp handling is thus: 1290 * 1291 * 1)In case someone ever wants to do chirp detection with this code on 1292 * chips that don't support chirp detection, you can still do it based 1293 * on pulse duration. That's your problem to solve. 1294 * 1295 * 2)For chips that do hardware chirp detection or FFT, the "do_check_chirp" 1296 * bit should be set. 1297 * 1298 * 3)Then, either is_hw_chirp or is_sw_chirp is set, indicating that 1299 * the hardware or software post-processing of the chirp event found 1300 * that indeed it was a chirp. 1301 * 1302 * 4)Finally, the bin5 code should just check whether the chirp bits are 1303 * set and behave appropriately, falling back onto the duration checks 1304 * if someone wishes to use this on older hardware (or with disabled 1305 * FFTs, for whatever reason.) 1306 * 1307 * XXX TODO: 1308 * 1309 * 1)add duration in uS and raw duration, so the PHY error parsing 1310 * code is responsible for doing the duration calculation; 1311 * 2)add ts in raw and corrected, so the PHY error parsing 1312 * code is responsible for doing the offsetting, not the radar 1313 * event code. 1314 */ 1315 struct dfs_phy_err { 1316 uint64_t fulltsf; 1317 uint32_t is_pri:1, 1318 is_ext:1, 1319 is_dc:1, 1320 is_early:1, 1321 do_check_chirp:1, 1322 is_hw_chirp:1, 1323 is_sw_chirp:1; 1324 uint32_t rs_tstamp; 1325 uint32_t freq; 1326 uint32_t freq_lo; 1327 uint32_t freq_hi; 1328 uint8_t rssi; 1329 uint8_t dur; 1330 uint8_t seg_id; 1331 int sidx; 1332 u_int freq_offset_khz; 1333 int peak_mag; 1334 int total_gain; 1335 int mb_gain; 1336 int relpwr_db; 1337 uint8_t pulse_delta_diff; 1338 int8_t pulse_delta_peak; 1339 int16_t pulse_psidx_diff; 1340 }; 1341 1342 /** 1343 * struct rx_radar_status - Parsed radar status 1344 * @raw_tsf: Raw tsf 1345 * @tsf_offset: TSF offset. 1346 * @rssi: RSSI. 1347 * @pulse_duration: Pulse duration. 1348 * @is_chirp: Is chirp. 1349 * @delta_peak: Delta peak. 1350 * @delta_diff: Delta diff. 1351 * @sidx: Starting frequency. 1352 * @freq_offset: Frequency offset. 1353 * @agc_total_gain: AGC total gain. 1354 * @agc_mb_gain: AGC MB gain. 1355 */ 1356 struct rx_radar_status { 1357 uint32_t raw_tsf; 1358 uint32_t tsf_offset; 1359 int rssi; 1360 int pulse_duration; 1361 int is_chirp:1; 1362 int delta_peak; 1363 int delta_diff; 1364 int sidx; 1365 int freq_offset; /* in KHz */ 1366 int agc_total_gain; 1367 int agc_mb_gain; 1368 }; 1369 1370 /** 1371 * struct rx_search_fft_report - FFT report. 1372 * @total_gain_db: Total gain in Db. 1373 * @base_pwr_db: Base power in Db. 1374 * @fft_chn_idx: FFT channel index. 1375 * @peak_sidx: Peak sidx. 1376 * @relpwr_db: Real power in Db. 1377 * @avgpwr_db: Average power in Db. 1378 * @peak_mag: Peak Mag. 1379 * @num_str_bins_ib: Num dtr BINs IB 1380 * @seg_id: Segment ID 1381 */ 1382 struct rx_search_fft_report { 1383 uint32_t total_gain_db; 1384 uint32_t base_pwr_db; 1385 int fft_chn_idx; 1386 int peak_sidx; 1387 int relpwr_db; 1388 int avgpwr_db; 1389 int peak_mag; 1390 int num_str_bins_ib; 1391 int seg_id; 1392 }; 1393 1394 /** 1395 * dfs_process_radarevent() - process the radar event generated for a pulse. 1396 * @dfs: Pointer to wlan_dfs structure. 1397 * @chan: Current channel. 1398 * 1399 * There is currently no way to specify that a radar event has occurred on 1400 * a specific channel, so the current methodology is to mark both the pri 1401 * and ext channels as being unavailable. This should be fixed for 802.11ac 1402 * or we'll quickly run out of valid channels to use. 1403 * 1404 * If Radar found, this marks the channel (and the extension channel, if HT40) 1405 * as having seen a radar event. It marks CHAN_INTERFERENCE and will add it to 1406 * the local NOL implementation. This is only done for 'usenol=1', as the other 1407 * two modes don't do radar notification or CAC/CSA/NOL; it just notes there 1408 * was a radar. 1409 */ 1410 void dfs_process_radarevent(struct wlan_dfs *dfs, 1411 struct dfs_channel *chan); 1412 1413 /** 1414 * dfs_nol_addchan() - Add channel to NOL. 1415 * @dfs: Pointer to wlan_dfs structure. 1416 * @freq: frequency to add to NOL. 1417 * @dfs_nol_timeout: NOL timeout. 1418 */ 1419 void dfs_nol_addchan(struct wlan_dfs *dfs, 1420 uint16_t freq, 1421 uint32_t dfs_nol_timeout); 1422 1423 /** 1424 * dfs_get_nol() - Get NOL. 1425 * @dfs: Pointer to wlan_dfs structure. 1426 * @dfs_nol: Pointer to dfsreq_nolelem structure to save the channels from NOL. 1427 * @nchan: Number of channels. 1428 */ 1429 void dfs_get_nol(struct wlan_dfs *dfs, 1430 struct dfsreq_nolelem *dfs_nol, 1431 int *nchan); 1432 1433 /** 1434 * dfs_set_nol() - Set NOL. 1435 * @dfs: Pointer to wlan_dfs structure. 1436 * @dfs_nol: Pointer to dfsreq_nolelem structure. 1437 * @nchan: Number of channels. 1438 */ 1439 void dfs_set_nol(struct wlan_dfs *dfs, 1440 struct dfsreq_nolelem *dfs_nol, 1441 int nchan); 1442 1443 /** 1444 * dfs_nol_update() - NOL update 1445 * @dfs: Pointer to wlan_dfs structure. 1446 * 1447 * Notify the driver/umac that it should update the channel radar/NOL flags 1448 * based on the current NOL list. 1449 */ 1450 void dfs_nol_update(struct wlan_dfs *dfs); 1451 1452 /** 1453 * dfs_nol_timer_cleanup() - NOL timer cleanup. 1454 * @dfs: Pointer to wlan_dfs structure. 1455 * 1456 * Cancels the NOL timer and frees the NOL elements. 1457 */ 1458 void dfs_nol_timer_cleanup(struct wlan_dfs *dfs); 1459 1460 /** 1461 * dfs_nol_timer_detach() - Free NOL timer. 1462 * @dfs: Pointer to wlan_dfs structure. 1463 */ 1464 void dfs_nol_timer_detach(struct wlan_dfs *dfs); 1465 1466 /** 1467 * dfs_nol_workqueue_cleanup() - Flushes NOL workqueue. 1468 * @dfs: Pointer to wlan_dfs structure. 1469 * 1470 * Flushes the NOL workqueue. 1471 */ 1472 void dfs_nol_workqueue_cleanup(struct wlan_dfs *dfs); 1473 1474 /** 1475 * dfs_retain_bin5_burst_pattern() - Retain the BIN5 burst pattern. 1476 * @dfs: Pointer to wlan_dfs structure. 1477 * @diff_ts: Timestamp diff. 1478 * @old_dur: Old duration. 1479 */ 1480 uint8_t dfs_retain_bin5_burst_pattern(struct wlan_dfs *dfs, 1481 uint32_t diff_ts, 1482 uint8_t old_dur); 1483 1484 /** 1485 * dfs_bin5_check_pulse() - BIN5 check pulse. 1486 * @dfs: Pointer to wlan_dfs structure. 1487 * @re: Pointer to dfs_event structure. 1488 * @br: Pointer to dfs_bin5radars structure. 1489 * 1490 * Reject the pulse if: 1491 * 1) It's outside the RSSI threshold; 1492 * 2) It's outside the pulse duration; 1493 * 3) It's been verified by HW/SW chirp checking 1494 * and neither of those found a chirp. 1495 */ 1496 int dfs_bin5_check_pulse(struct wlan_dfs *dfs, 1497 struct dfs_event *re, 1498 struct dfs_bin5radars *br); 1499 1500 /** 1501 * dfs_bin5_addpulse() - BIN5 add pulse. 1502 * @dfs: Pointer to wlan_dfs structure. 1503 * @br: Pointer to dfs_bin5radars structure. 1504 * @re: Pointer to dfs_event structure. 1505 * @thists: Timestamp. 1506 */ 1507 int dfs_bin5_addpulse(struct wlan_dfs *dfs, 1508 struct dfs_bin5radars *br, 1509 struct dfs_event *re, 1510 uint64_t thists); 1511 1512 /** 1513 * dfs_bin5_check() - BIN5 check. 1514 * @dfs: Pointer to wlan_dfs structure. 1515 * 1516 * If the dfs structure is NULL (which should be illegal if everyting is working 1517 * properly, then signify that a bin5 radar was found. 1518 */ 1519 int dfs_bin5_check(struct wlan_dfs *dfs); 1520 1521 /** 1522 * dfs_check_chirping() - Check chirping. 1523 * @dfs: Pointer to wlan_dfs structure. 1524 * @buf: Phyerr buffer 1525 * @datalen: Phyerr buf length 1526 * @is_ctl: detected on primary channel. 1527 * @is_ext: detected on extension channel. 1528 * @slope: Slope 1529 * @is_dc: DC found 1530 * 1531 * This examines the FFT data contained in the PHY error information to figure 1532 * out whether the pulse is moving across frequencies. 1533 */ 1534 int dfs_check_chirping(struct wlan_dfs *dfs, 1535 void *buf, 1536 uint16_t datalen, 1537 int is_ctl, 1538 int is_ext, 1539 int *slope, 1540 int *is_dc); 1541 1542 /** 1543 * dfs_get_random_bin5_dur() - Get random BIN5 duration. 1544 * @dfs: Pointer to wlan_dfs structure. 1545 * @tstamp: Timestamp. 1546 * 1547 * Chirping pulses may get cut off at DC and report lower durations. 1548 * This function will compute a suitable random duration for each pulse. 1549 * Duration must be between 50 and 100 us, but remember that in 1550 * wlan_process_phyerr() which calls this function, we are dealing with the 1551 * HW reported duration (unconverted). dfs_process_radarevent() will 1552 * actually convert the duration into the correct value. 1553 * This function doesn't take into account whether the hardware 1554 * is operating in 5GHz fast clock mode or not. 1555 * And this function doesn't take into account whether the hardware 1556 * is peregrine or not. 1557 */ 1558 int dfs_get_random_bin5_dur(struct wlan_dfs *dfs, 1559 uint64_t tstamp); 1560 1561 /** 1562 * dfs_print_delayline() - Prints delayline. 1563 * @dfs: Pointer to wlan_dfs structure. 1564 * @dl: Pointer to dfs_delayline structure. 1565 */ 1566 void dfs_print_delayline(struct wlan_dfs *dfs, 1567 struct dfs_delayline *dl); 1568 1569 /** 1570 * dfs_print_nol() - Print NOL elements. 1571 * @dfs: Pointer to wlan_dfs structure. 1572 */ 1573 void dfs_print_nol(struct wlan_dfs *dfs); 1574 1575 /** 1576 * dfs_print_filter() - Prints the filter. 1577 * @dfs: Pointer to wlan_dfs structure. 1578 * @rf: Pointer to dfs_filter structure. 1579 */ 1580 void dfs_print_filter(struct wlan_dfs *dfs, 1581 struct dfs_filter *rf); 1582 1583 /** 1584 * dfs_getchanstate() - Get chan state. 1585 * @dfs: Pointer to wlan_dfs structure. 1586 * @index: To save the index of dfs_radar[] 1587 * @ext_chan_flag: Extension channel flag; 1588 */ 1589 struct dfs_state *dfs_getchanstate(struct wlan_dfs *dfs, 1590 uint8_t *index, 1591 int ext_ch_flag); 1592 1593 /** 1594 * dfs_round() - DFS found. 1595 * @val: Convert durations to TSF ticks. 1596 * 1597 * Return: TSF ticks. 1598 */ 1599 uint32_t dfs_round(int32_t val); 1600 1601 /** 1602 * dfs_reset_alldelaylines() - Reset alldelaylines. 1603 * @dfs: Pointer to wlan_dfs structure. 1604 */ 1605 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1606 void dfs_reset_alldelaylines(struct wlan_dfs *dfs); 1607 #else 1608 static inline void dfs_reset_alldelaylines(struct wlan_dfs *dfs) 1609 { 1610 } 1611 #endif 1612 1613 /** 1614 * dfs_reset_delayline() - Clear only a single delay line. 1615 * @dl: Pointer to dfs_delayline structure. 1616 */ 1617 void dfs_reset_delayline(struct dfs_delayline *dl); 1618 1619 /** 1620 * dfs_reset_filter_delaylines() - Reset filter delaylines. 1621 * @dft: Pointer to dfs_filtertype structure. 1622 */ 1623 void dfs_reset_filter_delaylines(struct dfs_filtertype *dft); 1624 1625 /** 1626 * dfs_reset_radarq() - Reset radar queue. 1627 * @dfs: Pointer to wlan_dfs structure. 1628 */ 1629 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1630 void dfs_reset_radarq(struct wlan_dfs *dfs); 1631 #else 1632 static inline void dfs_reset_radarq(struct wlan_dfs *dfs) 1633 { 1634 } 1635 #endif 1636 1637 /** 1638 * dfs_add_pulse() - Adds pulse to the queue. 1639 * @dfs: Pointer to wlan_dfs structure. 1640 * @rf: Pointer to dfs_filter structure. 1641 * @re: Pointer to dfs_event structure. 1642 * @deltaT: deltaT value. 1643 * @this_ts: Last time stamp. 1644 */ 1645 void dfs_add_pulse(struct wlan_dfs *dfs, 1646 struct dfs_filter *rf, 1647 struct dfs_event *re, 1648 uint32_t deltaT, 1649 uint64_t this_ts); 1650 1651 /** 1652 * dfs_bin_check() - BIN check 1653 * @dfs: Pointer to wlan_dfs structure. 1654 * @rf: Pointer to dfs_filter structure. 1655 * @deltaT: deltaT value. 1656 * @width: Width 1657 * @ext_chan_flag: Extension channel flag. 1658 */ 1659 int dfs_bin_check(struct wlan_dfs *dfs, 1660 struct dfs_filter *rf, 1661 uint32_t deltaT, 1662 uint32_t dur, 1663 int ext_chan_flag); 1664 1665 /** 1666 * dfs_bin_pri_check() - BIN PRI check 1667 * @dfs: Pointer to wlan_dfs structure. 1668 * @rf: Pointer to dfs_filter structure. 1669 * @dl: Pointer to dfs_delayline structure. 1670 * @score: Primary score. 1671 * @refpri: Current "filter" time for start of pulse in usecs. 1672 * @refdur: Duration value. 1673 * @ext_chan_flag: Extension channel flag. 1674 * @fundamentalpri: Highest PRI. 1675 */ 1676 int dfs_bin_pri_check(struct wlan_dfs *dfs, 1677 struct dfs_filter *rf, 1678 struct dfs_delayline *dl, 1679 uint32_t score, 1680 uint32_t refpri, 1681 uint32_t refdur, 1682 int ext_chan_flag, 1683 int fundamentalpri); 1684 1685 /** 1686 * dfs_staggered_check() - Detection implementation for staggered PRIs. 1687 * @dfs: Pointer to wlan_dfs structure. 1688 * @rf: Pointer to dfs_filter structure. 1689 * @deltaT: Delta of the Timestamp. 1690 * @width: Duration of radar pulse. 1691 * 1692 * Return: 1 on success and 0 on failure. 1693 */ 1694 int dfs_staggered_check(struct wlan_dfs *dfs, 1695 struct dfs_filter *rf, 1696 uint32_t deltaT, 1697 uint32_t width); 1698 1699 /** 1700 * dfs_get_pri_margin() - Get Primary margin. 1701 * @dfs: Pointer to wlan_dfs structure. 1702 * @is_extchan_detect: Extension channel detect. 1703 * @is_fixed_pattern: Fixed pattern. 1704 * 1705 * For the extension channel, if legacy traffic is present, we see a lot of 1706 * false alarms, so make the PRI margin narrower depending on the busy % for 1707 * the extension channel. 1708 * 1709 * Return: Returns pri_margin. 1710 */ 1711 int dfs_get_pri_margin(struct wlan_dfs *dfs, 1712 int is_extchan_detect, 1713 int is_fixed_pattern); 1714 1715 /** 1716 * dfs_get_filter_threshold() - Get filter threshold. 1717 * @dfs: Pointer to wlan_dfs structure. 1718 * @rf: Pointer to dfs_filter structure. 1719 * @is_extchan_detect: Extension channel detect. 1720 * 1721 * For the extension channel, if legacy traffic is present, we see a lot of 1722 * false alarms, so make the thresholds higher depending on the busy % for the 1723 * extension channel. 1724 * 1725 * Return: Returns threshold. 1726 */ 1727 int dfs_get_filter_threshold(struct wlan_dfs *dfs, 1728 struct dfs_filter *rf, 1729 int is_extchan_detect); 1730 1731 #if defined(QCA_MCL_DFS_SUPPORT) 1732 /** 1733 * dfs_process_ar_event() - Process the ar event. 1734 * @dfs: Pointer to wlan_dfs structure. 1735 * @chan: Current channel structure. 1736 */ 1737 static inline void dfs_process_ar_event(struct wlan_dfs *dfs, 1738 struct dfs_channel *chan) 1739 { 1740 } 1741 1742 /** 1743 * dfs_reset_ar() - resets the ar state. 1744 * @dfs: pointer to wlan_dfs structure. 1745 */ 1746 static inline void dfs_reset_ar(struct wlan_dfs *dfs) 1747 { 1748 } 1749 1750 /** 1751 * dfs_reset_arq() - resets the ar queue. 1752 * @dfs: pointer to wlan_dfs structure. 1753 */ 1754 static inline void dfs_reset_arq(struct wlan_dfs *dfs) 1755 { 1756 } 1757 1758 #else 1759 void dfs_process_ar_event(struct wlan_dfs *dfs, 1760 struct dfs_channel *chan); 1761 1762 void dfs_reset_ar(struct wlan_dfs *dfs); 1763 void dfs_reset_arq(struct wlan_dfs *dfs); 1764 #endif 1765 1766 /** 1767 * dfs_is_radar_enabled() - check if radar detection is enabled. 1768 * @dfs: Pointer to wlan_dfs structure. 1769 * @ignore_dfs: if 1 then radar detection is disabled.. 1770 */ 1771 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1772 void dfs_is_radar_enabled(struct wlan_dfs *dfs, 1773 int *ignore_dfs); 1774 #else 1775 static inline void dfs_is_radar_enabled(struct wlan_dfs *dfs, 1776 int *ignore_dfs) 1777 { 1778 } 1779 #endif 1780 1781 /** 1782 * dfs_process_phyerr_bb_tlv() - Parses the PHY error and populates the 1783 * dfs_phy_err struct. 1784 * @dfs: Pointer to wlan_dfs structure. 1785 * @buf: Phyerr buffer 1786 * @datalen: Phyerr buf len 1787 * @rssi: RSSI 1788 * @ext_rssi: Extension RSSI. 1789 * @rs_tstamp: Time stamp. 1790 * @fulltsf: TSF64. 1791 * @e: Pointer to dfs_phy_err structure. 1792 * 1793 * Return: Returns 1. 1794 */ 1795 int dfs_process_phyerr_bb_tlv(struct wlan_dfs *dfs, 1796 void *buf, 1797 uint16_t datalen, 1798 uint8_t rssi, 1799 uint8_t ext_rssi, 1800 uint32_t rs_tstamp, 1801 uint64_t fulltsf, 1802 struct dfs_phy_err *e); 1803 1804 /** 1805 * dfs_reset() - DFS reset 1806 * @dfs: Pointer to wlan_dfs structure. 1807 */ 1808 void dfs_reset(struct wlan_dfs *dfs); 1809 1810 /** 1811 * dfs_radar_enable() - Enables the radar. 1812 * @dfs: Pointer to wlan_dfs structure. 1813 * @no_cac: If no_cac is 0, it cancels the CAC. 1814 */ 1815 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1816 void dfs_radar_enable(struct wlan_dfs *dfs, 1817 int no_cac, uint32_t opmode); 1818 #else 1819 static inline void dfs_radar_enable(struct wlan_dfs *dfs, 1820 int no_cac, uint32_t opmode) 1821 { 1822 } 1823 #endif 1824 1825 /** 1826 * dfs_process_phyerr() - Process phyerr. 1827 * @dfs: Pointer to wlan_dfs structure. 1828 * @buf: Phyerr buffer. 1829 * @datalen: phyerr buffer length. 1830 * @r_rssi: RSSI. 1831 * @r_ext_rssi: Extension channel RSSI. 1832 * @r_rs_tstamp: Timestamp. 1833 * @r_fulltsf: TSF64. 1834 */ 1835 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1836 void dfs_process_phyerr(struct wlan_dfs *dfs, 1837 void *buf, 1838 uint16_t datalen, 1839 uint8_t r_rssi, 1840 uint8_t r_ext_rssi, 1841 uint32_t r_rs_tstamp, 1842 uint64_t r_fulltsf); 1843 #else 1844 static inline void dfs_process_phyerr(struct wlan_dfs *dfs, 1845 void *buf, 1846 uint16_t datalen, 1847 uint8_t r_rssi, 1848 uint8_t r_ext_rssi, 1849 uint32_t r_rs_tstamp, 1850 uint64_t r_fulltsf) 1851 { 1852 } 1853 #endif 1854 1855 #ifdef QCA_MCL_DFS_SUPPORT 1856 /** 1857 * dfs_process_phyerr_filter_offload() - Process radar event. 1858 * @dfs: Pointer to wlan_dfs structure. 1859 * @wlan_radar_event: Pointer to radar_event_info structure. 1860 * 1861 * Return: None 1862 */ 1863 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) 1864 void dfs_process_phyerr_filter_offload(struct wlan_dfs *dfs, 1865 struct radar_event_info *wlan_radar_event); 1866 #else 1867 static inline void dfs_process_phyerr_filter_offload( 1868 struct wlan_dfs *dfs, 1869 struct radar_event_info *wlan_radar_event) 1870 { 1871 } 1872 #endif 1873 #endif 1874 1875 /** 1876 * dfs_get_radars() - Based on the chipset, calls init radar table functions. 1877 * @dfs: Pointer to wlan_dfs structure. 1878 */ 1879 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 1880 void dfs_get_radars(struct wlan_dfs *dfs); 1881 #else 1882 static inline void dfs_get_radars(struct wlan_dfs *dfs) 1883 { 1884 } 1885 #endif 1886 1887 /** 1888 * dfs_attach() - Wrapper function to allocate memory for wlan_dfs members. 1889 * @dfs: Pointer to wlan_dfs structure. 1890 */ 1891 int dfs_attach(struct wlan_dfs *dfs); 1892 1893 1894 /** 1895 * dfs_create_object() - Creates DFS object. 1896 * @dfs: Pointer to wlan_dfs structure. 1897 */ 1898 int dfs_create_object(struct wlan_dfs **dfs); 1899 1900 /** 1901 * dfs_destroy_object() - Destroys the DFS object. 1902 * @dfs: Pointer to wlan_dfs structure. 1903 */ 1904 void dfs_destroy_object(struct wlan_dfs *dfs); 1905 1906 /** 1907 * dfs_detach() - Wrapper function to free dfs variables. 1908 * @dfs: Pointer to wlan_dfs structure. 1909 */ 1910 void dfs_detach(struct wlan_dfs *dfs); 1911 1912 /** 1913 * dfs_cac_valid_reset() - Cancels the dfs_cac_valid_timer timer. 1914 * @dfs: Pointer to wlan_dfs structure. 1915 * @prevchan_ieee: Prevchan number. 1916 * @prevchan_flags: Prevchan flags. 1917 */ 1918 void dfs_cac_valid_reset(struct wlan_dfs *dfs, 1919 uint8_t prevchan_ieee, 1920 uint32_t prevchan_flags); 1921 1922 /** 1923 * dfs_cac_stop() - Clear the AP CAC timer. 1924 * @dfs: Pointer to wlan_dfs structure. 1925 */ 1926 void dfs_cac_stop(struct wlan_dfs *dfs); 1927 1928 /** 1929 * dfs_cancel_cac_timer() - Cancels the CAC timer. 1930 * @dfs: Pointer to wlan_dfs structure. 1931 */ 1932 void dfs_cancel_cac_timer(struct wlan_dfs *dfs); 1933 1934 /** 1935 * dfs_start_cac_timer() - Starts the CAC timer. 1936 * @dfs: Pointer to wlan_dfs structure. 1937 */ 1938 void dfs_start_cac_timer(struct wlan_dfs *dfs); 1939 1940 /** 1941 * dfs_is_subset_channel() - Check if the new_chan is subset of the old_chan. 1942 * @dfs: Pointer to wlan_dfs structure. 1943 * @old_chan: Pointer to old channel. 1944 * @new_chan: Pointer to new channel. 1945 * 1946 * Return: true if the new channel is subset of or same as the old channel, 1947 * else false. 1948 */ 1949 bool dfs_is_subset_channel(struct wlan_dfs *dfs, 1950 struct dfs_channel *old_chan, 1951 struct dfs_channel *new_chan); 1952 1953 /** 1954 * dfs_is_curchan_subset_of_cac_started_chan() - Check if the dfs current 1955 * channel is subset of cac started channel. 1956 * @dfs: Pointer to wlan_dfs structure. 1957 * 1958 * If the current channel and the cac_started_chan is same or 1959 * if the current channel is subset of the cac_started_chan then 1960 * this function returns true. 1961 * 1962 * Return: true if current channel is same or subset of cac started channel, 1963 * else false. 1964 */ 1965 bool dfs_is_curchan_subset_of_cac_started_chan(struct wlan_dfs *dfs); 1966 1967 /** 1968 * dfs_clear_cac_started_chan() - Clear dfs cac started channel. 1969 * @dfs: Pointer to wlan_dfs structure. 1970 */ 1971 void dfs_clear_cac_started_chan(struct wlan_dfs *dfs); 1972 1973 /** 1974 * dfs_set_update_nol_flag() - Sets update_nol flag. 1975 * @dfs: Pointer to wlan_dfs structure. 1976 * @val: update_nol flag. 1977 */ 1978 void dfs_set_update_nol_flag(struct wlan_dfs *dfs, 1979 bool val); 1980 1981 /** 1982 * dfs_get_update_nol_flag() - Returns update_nol flag. 1983 * @dfs: Pointer to wlan_dfs structure. 1984 */ 1985 bool dfs_get_update_nol_flag(struct wlan_dfs *dfs); 1986 1987 /** 1988 * dfs_get_use_nol() - Get usenol. 1989 * @dfs: Pointer to wlan_dfs structure. 1990 */ 1991 int dfs_get_use_nol(struct wlan_dfs *dfs); 1992 1993 /** 1994 * dfs_get_nol_timeout() - Get NOL timeout. 1995 * @dfs: Pointer to wlan_dfs structure. 1996 */ 1997 int dfs_get_nol_timeout(struct wlan_dfs *dfs); 1998 1999 /** 2000 * dfs_is_ap_cac_timer_running() - Returns the dfs cac timer. 2001 * @dfs: Pointer to wlan_dfs structure. 2002 */ 2003 int dfs_is_ap_cac_timer_running(struct wlan_dfs *dfs); 2004 2005 /** 2006 * dfs_control()- Used to process ioctls related to DFS. 2007 * @dfs: Pointer to wlan_dfs structure. 2008 * @id: Command type. 2009 * @indata: Input buffer. 2010 * @insize: size of the input buffer. 2011 * @outdata: A buffer for the results. 2012 * @outsize: Size of the output buffer. 2013 */ 2014 int dfs_control(struct wlan_dfs *dfs, 2015 u_int id, 2016 void *indata, 2017 uint32_t insize, 2018 void *outdata, 2019 uint32_t *outsize); 2020 2021 /** 2022 * dfs_getnol() - Wrapper function for dfs_get_nol() 2023 * @dfs: Pointer to wlan_dfs structure. 2024 * @dfs_nolinfo: Pointer to dfsreq_nolinfo structure. 2025 */ 2026 void dfs_getnol(struct wlan_dfs *dfs, 2027 void *dfs_nolinfo); 2028 2029 /** 2030 * dfs_get_override_cac_timeout() - Get override CAC timeout value. 2031 * @dfs: Pointer to DFS object. 2032 * @cac_timeout: Pointer to save the CAC timeout value. 2033 */ 2034 int dfs_get_override_cac_timeout(struct wlan_dfs *dfs, 2035 int *cac_timeout); 2036 2037 /** 2038 * dfs_override_cac_timeout() - Override the default CAC timeout. 2039 * @dfs: Pointer to DFS object. 2040 * @cac_timeout: CAC timeout value. 2041 */ 2042 int dfs_override_cac_timeout(struct wlan_dfs *dfs, 2043 int cac_timeout); 2044 2045 /** 2046 * dfs_clear_nolhistory() - unmarks WLAN_CHAN_CLR_HISTORY_RADAR flag for 2047 * all the channels in dfs_ch_channels. 2048 * @dfs: Pointer to wlan_dfs structure. 2049 */ 2050 void dfs_clear_nolhistory(struct wlan_dfs *dfs); 2051 2052 /** 2053 * ol_if_dfs_configure() - Initialize the RADAR table for offload chipsets. 2054 * @dfs: Pointer to wlan_dfs structure. 2055 * 2056 * This is called during a channel change or regulatory domain 2057 * reset; in order to fetch the new configuration information and 2058 * program the DFS pattern matching module. 2059 * 2060 * Eventually this should be split into "fetch config" (which can 2061 * happen at regdomain selection time) and "configure DFS" (which 2062 * can happen at channel config time) so as to minimise overheads 2063 * when doing channel changes. However, this'll do for now. 2064 */ 2065 void ol_if_dfs_configure(struct wlan_dfs *dfs); 2066 2067 /** 2068 * dfs_init_radar_filters() - Init Radar filters. 2069 * @dfs: Pointer to wlan_dfs structure. 2070 * @radar_info: Pointer to wlan_dfs_radar_tab_info structure. 2071 */ 2072 int dfs_init_radar_filters(struct wlan_dfs *dfs, 2073 struct wlan_dfs_radar_tab_info *radar_info); 2074 2075 /** 2076 * dfs_get_radars_for_ar5212() - Initialize radar table for AR5212 chipsets. 2077 * @dfs: Pointer to wlan_dfs structure. 2078 */ 2079 void dfs_get_radars_for_ar5212(struct wlan_dfs *dfs); 2080 2081 /** 2082 * dfs_get_radars_for_ar5416() - Initialize radar table for AR5416 chipsets. 2083 * @dfs: Pointer to wlan_dfs structure. 2084 */ 2085 void dfs_get_radars_for_ar5416(struct wlan_dfs *dfs); 2086 2087 /** 2088 * dfs_get_radars_for_ar9300() - Initialize radar table for AR9300 chipsets. 2089 * @dfs: Pointer to wlan_dfs structure. 2090 */ 2091 void dfs_get_radars_for_ar9300(struct wlan_dfs *dfs); 2092 2093 /** 2094 * dfs_print_filters() - Print the filters. 2095 * @dfs: Pointer to wlan_dfs structure. 2096 */ 2097 void dfs_print_filters(struct wlan_dfs *dfs); 2098 2099 /** 2100 * dfs_clear_stats() - Clear stats. 2101 * @dfs: Pointer to wlan_dfs structure. 2102 */ 2103 void dfs_clear_stats(struct wlan_dfs *dfs); 2104 2105 /** 2106 * dfs_radar_disable() - Disables the radar. 2107 * @dfs: Pointer to wlan_dfs structure. 2108 */ 2109 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 2110 int dfs_radar_disable(struct wlan_dfs *dfs); 2111 #else 2112 static inline int dfs_radar_disable(struct wlan_dfs *dfs) 2113 { 2114 return 0; 2115 } 2116 #endif 2117 2118 /** 2119 * dfs_get_debug_info() - Get debug info. 2120 * @dfs: Pointer to wlan_dfs structure. 2121 * @data: void pointer to the data to save dfs_proc_phyerr. 2122 */ 2123 int dfs_get_debug_info(struct wlan_dfs *dfs, 2124 void *data); 2125 2126 /** 2127 * dfs_cac_timer_init() - Initialize cac timers. 2128 * @dfs: Pointer to wlan_dfs structure. 2129 */ 2130 void dfs_cac_timer_init(struct wlan_dfs *dfs); 2131 2132 /** 2133 * dfs_cac_attach() - Initialize dfs cac variables. 2134 * @dfs: Pointer to wlan_dfs structure. 2135 */ 2136 void dfs_cac_attach(struct wlan_dfs *dfs); 2137 2138 /** 2139 * dfs_cac_timer_reset() - Cancel dfs cac timers. 2140 * @dfs: Pointer to wlan_dfs structure. 2141 */ 2142 void dfs_cac_timer_reset(struct wlan_dfs *dfs); 2143 2144 /** 2145 * dfs_cac_timer_detach() - Free dfs cac timers. 2146 * @dfs: Pointer to wlan_dfs structure. 2147 */ 2148 void dfs_cac_timer_detach(struct wlan_dfs *dfs); 2149 2150 /** 2151 * dfs_nol_timer_init() - Initialize NOL timers. 2152 * @dfs: Pointer to wlan_dfs structure. 2153 */ 2154 void dfs_nol_timer_init(struct wlan_dfs *dfs); 2155 2156 /** 2157 * dfs_nol_attach() - Initialize NOL variables. 2158 * @dfs: Pointer to wlan_dfs structure. 2159 */ 2160 void dfs_nol_attach(struct wlan_dfs *dfs); 2161 2162 /** 2163 * dfs_nol_detach() - Detach NOL variables. 2164 * @dfs: Pointer to wlan_dfs structure. 2165 */ 2166 void dfs_nol_detach(struct wlan_dfs *dfs); 2167 2168 /** 2169 * dfs_print_nolhistory() - Print NOL history. 2170 * @dfs: Pointer to wlan_dfs structure. 2171 */ 2172 void dfs_print_nolhistory(struct wlan_dfs *dfs); 2173 2174 /** 2175 * dfs_stacac_stop() - Clear the STA CAC timer. 2176 * @dfs: Pointer to wlan_dfs structure. 2177 */ 2178 void dfs_stacac_stop(struct wlan_dfs *dfs); 2179 2180 /** 2181 * dfs_find_precac_secondary_vht80_chan() - Get a VHT80 channel with the 2182 * precac primary center frequency. 2183 * @dfs: Pointer to wlan_dfs structure. 2184 * @chan: Pointer to dfs channel structure. 2185 */ 2186 void dfs_find_precac_secondary_vht80_chan(struct wlan_dfs *dfs, 2187 struct dfs_channel *chan); 2188 2189 #ifdef WLAN_DFS_PRECAC_AUTO_CHAN_SUPPORT 2190 /** 2191 * dfs_precac_csa() - Automatically switch the channel to the DFS channel 2192 * on which PreCAC was completed without finding a RADAR. 2193 * Use CSA with TBTT_COUNT to switch the channel. 2194 * @dfs: Pointer to dfs handler. 2195 * 2196 * Return: Void 2197 */ 2198 void dfs_precac_csa(struct wlan_dfs *dfs); 2199 #endif 2200 2201 /** 2202 * dfs_phyerr_param_copy() - Function to copy src buf to dest buf. 2203 * @dst: dest buf. 2204 * @src: src buf. 2205 */ 2206 void dfs_phyerr_param_copy(struct wlan_dfs_phyerr_param *dst, 2207 struct wlan_dfs_phyerr_param *src); 2208 2209 /** 2210 * dfs_get_thresholds() - Get the threshold value. 2211 * @dfs: Pointer to wlan_dfs structure. 2212 * @param: Pointer to wlan_dfs_phyerr_param structure. 2213 */ 2214 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 2215 int dfs_get_thresholds(struct wlan_dfs *dfs, 2216 struct wlan_dfs_phyerr_param *param); 2217 #else 2218 static inline int dfs_get_thresholds(struct wlan_dfs *dfs, 2219 struct wlan_dfs_phyerr_param *param) 2220 { 2221 return 0; 2222 } 2223 #endif 2224 2225 /** 2226 * dfs_set_thresholds() - Sets the threshold value. 2227 * @dfs: Pointer to wlan_dfs structure. 2228 * @threshtype: DFS ioctl param type. 2229 * @value: Threshold value. 2230 */ 2231 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 2232 int dfs_set_thresholds(struct wlan_dfs *dfs, 2233 const uint32_t threshtype, 2234 const uint32_t value); 2235 #else 2236 static inline int dfs_set_thresholds(struct wlan_dfs *dfs, 2237 const uint32_t threshtype, 2238 const uint32_t value) 2239 { 2240 return 0; 2241 } 2242 #endif 2243 2244 /** 2245 * dfs_check_intersect_excl() - Check whether curfreq falls within lower_freq 2246 * and upper_freq, exclusively. 2247 * @low_freq : lower bound frequency value. 2248 * @high_freq: upper bound frequency value. 2249 * @chan_freq: Current frequency value to be checked. 2250 * 2251 * Return: returns true if overlap found, else returns false. 2252 */ 2253 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 2254 bool dfs_check_intersect_excl(int low_freq, int high_freq, int chan_freq); 2255 #else 2256 static inline bool dfs_check_intersect_excl(int low_freq, int high_freq, 2257 int chan_freq) 2258 { 2259 return false; 2260 } 2261 #endif 2262 2263 /** 2264 * dfs_check_etsi_overlap() - Check whether given frequency centre/channel 2265 * width entry overlap with frequency spread in any way. 2266 * @center_freq : current channel centre frequency. 2267 * @chan_width : current channel width. 2268 * @en302_502_freq_low : overlap frequency lower bound. 2269 * @en302_502_freq_high : overlap frequency upper bound. 2270 * 2271 * Return: returns 1 if overlap found, else returns 0. 2272 */ 2273 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 2274 int dfs_check_etsi_overlap(int center_freq, int chan_width, 2275 int en302_502_freq_low, int en302_502_freq_high); 2276 #else 2277 static inline int dfs_check_etsi_overlap(int center_freq, int chan_width, 2278 int en302_502_freq_low, 2279 int en302_502_freq_high) 2280 { 2281 return 0; 2282 } 2283 #endif 2284 2285 /** 2286 * dfs_is_en302_502_applicable() - Check whether current channel frequecy spread 2287 * overlaps with EN 302 502 radar type 2288 * frequency range. 2289 *@dfs: Pointer to wlan_dfs structure. 2290 * 2291 * Return: returns true if overlap found, else returns false. 2292 */ 2293 #if defined(WLAN_DFS_DIRECT_ATTACH) || defined(WLAN_DFS_PARTIAL_OFFLOAD) 2294 bool dfs_is_en302_502_applicable(struct wlan_dfs *dfs); 2295 #else 2296 static inline bool dfs_is_en302_502_applicable(struct wlan_dfs *dfs) 2297 { 2298 return false; 2299 } 2300 #endif 2301 2302 /** 2303 * dfs_set_current_channel() - Set DFS current channel. 2304 * @dfs: Pointer to wlan_dfs structure. 2305 * @dfs_ch_freq: Frequency in Mhz. 2306 * @dfs_ch_flags: Channel flags. 2307 * @dfs_ch_flagext: Extended channel flags. 2308 * @dfs_ch_ieee: IEEE channel number. 2309 * @dfs_ch_vhtop_ch_freq_seg1: Channel Center frequency1. 2310 * @dfs_ch_vhtop_ch_freq_seg2: Channel Center frequency2. 2311 */ 2312 void dfs_set_current_channel(struct wlan_dfs *dfs, 2313 uint16_t dfs_ch_freq, 2314 uint64_t dfs_ch_flags, 2315 uint16_t dfs_ch_flagext, 2316 uint8_t dfs_ch_ieee, 2317 uint8_t dfs_ch_vhtop_ch_freq_seg1, 2318 uint8_t dfs_ch_vhtop_ch_freq_seg2); 2319 2320 /** 2321 * dfs_get_nol_chfreq_and_chwidth() - Get channel freq and width from NOL list. 2322 * @dfs_nol: Pointer to NOL channel entry. 2323 * @nol_chfreq: Pointer to save channel frequency. 2324 * @nol_chwidth: Pointer to save channel width. 2325 * @index: Index to dfs_nol list. 2326 */ 2327 void dfs_get_nol_chfreq_and_chwidth(struct dfsreq_nolelem *dfs_nol, 2328 uint32_t *nol_chfreq, 2329 uint32_t *nol_chwidth, 2330 int index); 2331 2332 /** 2333 * dfs_process_phyerr_owl() - Process an Owl-style phy error. 2334 * @dfs: Pointer to wlan_dfs structure. 2335 * @buf: Phyerr buffer 2336 * @datalen: Phyerr buf len 2337 * @rssi: RSSI 2338 * @ext_rssi: Extension RSSI. 2339 * @rs_tstamp: Time stamp. 2340 * @fulltsf: TSF64. 2341 * @e: Pointer to dfs_phy_err structure. 2342 * 2343 * Return: Returns 1. 2344 */ 2345 int dfs_process_phyerr_owl(struct wlan_dfs *dfs, 2346 void *buf, 2347 uint16_t datalen, 2348 uint8_t rssi, 2349 uint8_t ext_rssi, 2350 uint32_t rs_tstamp, 2351 uint64_t fulltsf, 2352 struct dfs_phy_err *e); 2353 2354 /** 2355 * dfs_process_phyerr_sowl() -Process a Sowl/Howl style phy error. 2356 * @dfs: Pointer to wlan_dfs structure. 2357 * @buf: Phyerr buffer 2358 * @datalen: Phyerr buf len 2359 * @rssi: RSSI 2360 * @ext_rssi: Extension RSSI. 2361 * @rs_tstamp: Time stamp. 2362 * @fulltsf: TSF64. 2363 * @e: Pointer to dfs_phy_err structure. 2364 * 2365 * Return: Returns 1. 2366 */ 2367 int dfs_process_phyerr_sowl(struct wlan_dfs *dfs, 2368 void *buf, 2369 uint16_t datalen, 2370 uint8_t rssi, 2371 uint8_t ext_rssi, 2372 uint32_t rs_tstamp, 2373 uint64_t fulltsf, 2374 struct dfs_phy_err *e); 2375 2376 /** 2377 * dfs_process_phyerr_merlin() - Process a Merlin/Osprey style phy error. 2378 * dfs_phy_err struct. 2379 * @dfs: Pointer to wlan_dfs structure. 2380 * @buf: Phyerr buffer 2381 * @datalen: Phyerr buf len 2382 * @rssi: RSSI 2383 * @ext_rssi: Extension RSSI. 2384 * @rs_tstamp: Time stamp. 2385 * @fulltsf: TSF64. 2386 * @e: Pointer to dfs_phy_err structure. 2387 * 2388 * Return: Returns 1. 2389 */ 2390 int dfs_process_phyerr_merlin(struct wlan_dfs *dfs, 2391 void *buf, 2392 uint16_t datalen, 2393 uint8_t rssi, 2394 uint8_t ext_rssi, 2395 uint32_t rs_tstamp, 2396 uint64_t fulltsf, 2397 struct dfs_phy_err *e); 2398 2399 /* 2400 * __dfs_process_radarevent() - Continuation of process a radar event function. 2401 * @dfs: Pointer to wlan_dfs structure. 2402 * @ft: Pointer to dfs_filtertype structure. 2403 * @re: Pointer to dfs_event structure. 2404 * @this_ts: Timestamp. 2405 * 2406 * There is currently no way to specify that a radar event has occurred on 2407 * a specific channel, so the current methodology is to mark both the pri 2408 * and ext channels as being unavailable. This should be fixed for 802.11ac 2409 * or we'll quickly run out of valid channels to use. 2410 * 2411 * Return: If a radar event is found, return 1. Otherwise, return 0. 2412 */ 2413 void __dfs_process_radarevent(struct wlan_dfs *dfs, 2414 struct dfs_filtertype *ft, 2415 struct dfs_event *re, 2416 uint64_t this_ts, 2417 int *found, 2418 int *false_radar_found); 2419 2420 /** 2421 * dfs_radar_found_action() - Radar found action 2422 * @dfs: Pointer to wlan_dfs structure. 2423 * @bangradar: true if radar is due to bangradar command. 2424 * @seg_id: Segment id. 2425 */ 2426 void dfs_radar_found_action(struct wlan_dfs *dfs, 2427 bool bangradar, 2428 uint8_t seg_id); 2429 2430 /** 2431 * bin5_rules_check_internal() - This is a extension of dfs_bin5_check(). 2432 * @dfs: Pointer to wlan_dfs structure. 2433 * @br: Pointer to dfs_bin5radars structure. 2434 * @bursts: Bursts. 2435 * @numevents: Number of events. 2436 * @prev: prev index. 2437 * @i: Index. 2438 * @this: index to br_elems[] 2439 */ 2440 void bin5_rules_check_internal(struct wlan_dfs *dfs, 2441 struct dfs_bin5radars *br, 2442 uint32_t *bursts, 2443 uint32_t *numevents, 2444 uint32_t prev, 2445 uint32_t i, 2446 uint32_t this, 2447 int *index); 2448 2449 /** 2450 * dfs_main_task_testtimer_init() - Initialize dfs task testtimer. 2451 * @dfs: Pointer to wlan_dfs structure. 2452 */ 2453 void dfs_main_task_testtimer_init(struct wlan_dfs *dfs); 2454 2455 /** 2456 * dfs_stop() - Clear dfs timers. 2457 * @dfs: Pointer to wlan_dfs structure. 2458 */ 2459 void dfs_stop(struct wlan_dfs *dfs); 2460 2461 /** 2462 * dfs_update_cur_chan_flags() - Update DFS channel flag and flagext. 2463 * @dfs: Pointer to wlan_dfs structure. 2464 * @flags: New channel flags 2465 * @flagext: New Extended flags 2466 */ 2467 void dfs_update_cur_chan_flags(struct wlan_dfs *dfs, 2468 uint64_t flags, 2469 uint16_t flagext); 2470 2471 /** 2472 * dfs_radarevent_basic_sanity() - Check basic sanity of the radar event 2473 * @dfs: Pointer to wlan_dfs structure. 2474 * @chan: Current channel. 2475 * 2476 * Return: If a radar event found on NON-DFS channel return 0. Otherwise, 2477 * return 1. 2478 */ 2479 int dfs_radarevent_basic_sanity(struct wlan_dfs *dfs, 2480 struct dfs_channel *chan); 2481 2482 /** 2483 * wlan_psoc_get_dfs_txops() - Get dfs_tx_ops pointer 2484 * @psoc: Pointer to psoc structure. 2485 * 2486 * Return: Pointer to dfs_tx_ops. 2487 */ 2488 struct wlan_lmac_if_dfs_tx_ops * 2489 wlan_psoc_get_dfs_txops(struct wlan_objmgr_psoc *psoc); 2490 2491 /** 2492 * dfs_nol_free_list() - Free NOL elements. 2493 * @dfs: Pointer to wlan_dfs structure. 2494 */ 2495 void dfs_nol_free_list(struct wlan_dfs *dfs); 2496 2497 /** 2498 * dfs_second_segment_radar_disable() - Disables the second segment radar. 2499 * @dfs: Pointer to wlan_dfs structure. 2500 * 2501 * This is called when AP detects the radar, to (potentially) disable 2502 * the radar code. 2503 * 2504 * Return: returns 0. 2505 */ 2506 int dfs_second_segment_radar_disable(struct wlan_dfs *dfs); 2507 2508 /** 2509 * dfs_fetch_nol_ie_info() - Fill NOL information to be sent with RCSA. 2510 * @dfs - Pointer to wlan_dfs structure. 2511 * @nol_ie_bandwidth - Minimum subchannel bandwidth. 2512 * @nol_ie_startfreq - Radar affected channel list's first subchannel's 2513 * - centre frequency. 2514 * @nol_ie_bitmap - NOL bitmap denoting affected subchannels. 2515 */ 2516 void dfs_fetch_nol_ie_info(struct wlan_dfs *dfs, uint8_t *nol_ie_bandwidth, 2517 uint16_t *nol_ie_startfreq, uint8_t *nol_ie_bitmap); 2518 2519 /** 2520 * dfs_set_rcsa_flags() - Set flags that are required for sending RCSA and 2521 * NOL IE. 2522 * @dfs: Pointer to wlan_dfs structure. 2523 * @is_rcsa_ie_sent: Boolean to check if RCSA IE should be sent or not. 2524 * @is_nol_ie_sent: Boolean to check if NOL IE should be sent or not. 2525 */ 2526 void dfs_set_rcsa_flags(struct wlan_dfs *dfs, bool is_rcsa_ie_sent, 2527 bool is_nol_ie_sent); 2528 2529 /** 2530 * dfs_get_rcsa_flags() - Get flags that are required for sending RCSA and 2531 * NOL IE. 2532 * @dfs: Pointer to wlan_dfs structure. 2533 * @is_rcsa_ie_sent: Boolean to check if RCSA IE should be sent or not. 2534 * @is_nol_ie_sent: Boolean to check if NOL IE should be sent or not. 2535 */ 2536 void dfs_get_rcsa_flags(struct wlan_dfs *dfs, bool *is_rcsa_ie_sent, 2537 bool *is_nol_ie_sent); 2538 2539 /** 2540 * dfs_process_nol_ie_bitmap() - Update NOL with external radar information. 2541 * @dfs - Pointer to wlan_dfs structure. 2542 * @nol_ie_bandwidth - Minimum subchannel bandwidth. 2543 * @nol_ie_starfreq - Radar affected channel list's first subchannel's 2544 * - centre frequency. 2545 * @nol_ie_bitmap - Bitmap denoting radar affected subchannels. 2546 * 2547 * Return: True if NOL IE should be propagated, else false. 2548 */ 2549 bool dfs_process_nol_ie_bitmap(struct wlan_dfs *dfs, uint8_t nol_ie_bandwidth, 2550 uint16_t nol_ie_startfreq, 2551 uint8_t nol_ie_bitmap); 2552 2553 /** 2554 * dfs_check_for_cac_start() - Check for DFS CAC start conditions. 2555 * @dfs: Pointer to wlan_dfs structure. 2556 * @continue_current_cac: If AP can start CAC then this variable indicates 2557 * whether to continue with the current CAC or restart the CAC. This variable 2558 * is valid only if this function returns true. 2559 * 2560 * Return: true if AP can start or continue the current CAC, else false. 2561 */ 2562 bool dfs_check_for_cac_start(struct wlan_dfs *dfs, 2563 bool *continue_current_cac); 2564 2565 /** 2566 * dfs_task_testtimer_reset() - stop dfs test timer. 2567 * @dfs: Pointer to wlan_dfs structure. 2568 */ 2569 void dfs_task_testtimer_reset(struct wlan_dfs *dfs); 2570 2571 /** 2572 * dfs_freq_is_in_nol() - check if given channel in nol list 2573 * @dfs: Pointer to wlan_dfs structure 2574 * @freq: channel frequency 2575 * 2576 * check if given channel in nol list. 2577 * 2578 * Return: true if channel in nol, false else 2579 */ 2580 bool dfs_freq_is_in_nol(struct wlan_dfs *dfs, uint32_t freq); 2581 2582 /** 2583 * dfs_task_testtimer_detach() - Free dfs test timer. 2584 * @dfs: Pointer to wlan_dfs structure. 2585 */ 2586 void dfs_task_testtimer_detach(struct wlan_dfs *dfs); 2587 2588 /** 2589 * dfs_timer_detach() - Free dfs timers. 2590 * @dfs: Pointer to wlan_dfs structure. 2591 */ 2592 void dfs_timer_detach(struct wlan_dfs *dfs); 2593 2594 /** 2595 * dfs_is_disable_radar_marking_set() - Check if radar marking is set on 2596 * NOL chan. 2597 * @dfs: Pointer to wlan_dfs structure. 2598 */ 2599 #if defined(WLAN_DFS_FULL_OFFLOAD) && defined(QCA_DFS_NOL_OFFLOAD) 2600 int dfs_is_disable_radar_marking_set(struct wlan_dfs *dfs, 2601 bool *disable_radar_marking); 2602 #else 2603 static inline int dfs_is_disable_radar_marking_set(struct wlan_dfs *dfs, 2604 bool *disable_radar_marking) 2605 { 2606 return QDF_STATUS_SUCCESS; 2607 } 2608 #endif 2609 /** 2610 * dfs_get_disable_radar_marking() - Get the value of disable radar marking. 2611 * @dfs: Pointer to wlan_dfs structure. 2612 */ 2613 #if defined(WLAN_DFS_FULL_OFFLOAD) && defined(QCA_DFS_NOL_OFFLOAD) 2614 bool dfs_get_disable_radar_marking(struct wlan_dfs *dfs); 2615 #endif 2616 #endif /* _DFS_H_ */ 2617