1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 9 * Copyright (C) 2018 Intel Corporation 10 * Copyright (C) 2019 Intel Corporation 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * The full GNU General Public License is included in this distribution 22 * in the file called COPYING. 23 * 24 * Contact Information: 25 * Intel Linux Wireless <linuxwifi@intel.com> 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 27 * 28 * BSD LICENSE 29 * 30 * Copyright(c) 2015 - 2017 Intel Deutschland GmbH 31 * Copyright (C) 2018 Intel Corporation 32 * Copyright (C) 2019 Intel Corporation 33 * All rights reserved. 34 * 35 * Redistribution and use in source and binary forms, with or without 36 * modification, are permitted provided that the following conditions 37 * are met: 38 * 39 * * Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * * Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in 43 * the documentation and/or other materials provided with the 44 * distribution. 45 * * Neither the name Intel Corporation nor the names of its 46 * contributors may be used to endorse or promote products derived 47 * from this software without specific prior written permission. 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 60 * 61 *****************************************************************************/ 62 #include <linux/etherdevice.h> 63 #include <linux/math64.h> 64 #include <net/cfg80211.h> 65 #include "mvm.h" 66 #include "iwl-io.h" 67 #include "iwl-prph.h" 68 #include "constants.h" 69 70 struct iwl_mvm_loc_entry { 71 struct list_head list; 72 u8 addr[ETH_ALEN]; 73 u8 lci_len, civic_len; 74 u8 buf[]; 75 }; 76 77 static void iwl_mvm_ftm_reset(struct iwl_mvm *mvm) 78 { 79 struct iwl_mvm_loc_entry *e, *t; 80 81 mvm->ftm_initiator.req = NULL; 82 mvm->ftm_initiator.req_wdev = NULL; 83 memset(mvm->ftm_initiator.responses, 0, 84 sizeof(mvm->ftm_initiator.responses)); 85 list_for_each_entry_safe(e, t, &mvm->ftm_initiator.loc_list, list) { 86 list_del(&e->list); 87 kfree(e); 88 } 89 } 90 91 void iwl_mvm_ftm_restart(struct iwl_mvm *mvm) 92 { 93 struct cfg80211_pmsr_result result = { 94 .status = NL80211_PMSR_STATUS_FAILURE, 95 .final = 1, 96 .host_time = ktime_get_boot_ns(), 97 .type = NL80211_PMSR_TYPE_FTM, 98 }; 99 int i; 100 101 lockdep_assert_held(&mvm->mutex); 102 103 if (!mvm->ftm_initiator.req) 104 return; 105 106 for (i = 0; i < mvm->ftm_initiator.req->n_peers; i++) { 107 memcpy(result.addr, mvm->ftm_initiator.req->peers[i].addr, 108 ETH_ALEN); 109 result.ftm.burst_index = mvm->ftm_initiator.responses[i]; 110 111 cfg80211_pmsr_report(mvm->ftm_initiator.req_wdev, 112 mvm->ftm_initiator.req, 113 &result, GFP_KERNEL); 114 } 115 116 cfg80211_pmsr_complete(mvm->ftm_initiator.req_wdev, 117 mvm->ftm_initiator.req, GFP_KERNEL); 118 iwl_mvm_ftm_reset(mvm); 119 } 120 121 static int 122 iwl_ftm_range_request_status_to_err(enum iwl_tof_range_request_status s) 123 { 124 switch (s) { 125 case IWL_TOF_RANGE_REQUEST_STATUS_SUCCESS: 126 return 0; 127 case IWL_TOF_RANGE_REQUEST_STATUS_BUSY: 128 return -EBUSY; 129 default: 130 WARN_ON_ONCE(1); 131 return -EIO; 132 } 133 } 134 135 static void iwl_mvm_ftm_cmd_v5(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 136 struct iwl_tof_range_req_cmd_v5 *cmd, 137 struct cfg80211_pmsr_request *req) 138 { 139 int i; 140 141 cmd->request_id = req->cookie; 142 cmd->num_of_ap = req->n_peers; 143 144 /* use maximum for "no timeout" or bigger than what we can do */ 145 if (!req->timeout || req->timeout > 255 * 100) 146 cmd->req_timeout = 255; 147 else 148 cmd->req_timeout = DIV_ROUND_UP(req->timeout, 100); 149 150 /* 151 * We treat it always as random, since if not we'll 152 * have filled our local address there instead. 153 */ 154 cmd->macaddr_random = 1; 155 memcpy(cmd->macaddr_template, req->mac_addr, ETH_ALEN); 156 for (i = 0; i < ETH_ALEN; i++) 157 cmd->macaddr_mask[i] = ~req->mac_addr_mask[i]; 158 159 if (vif->bss_conf.assoc) 160 memcpy(cmd->range_req_bssid, vif->bss_conf.bssid, ETH_ALEN); 161 else 162 eth_broadcast_addr(cmd->range_req_bssid); 163 } 164 165 static void iwl_mvm_ftm_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 166 struct iwl_tof_range_req_cmd *cmd, 167 struct cfg80211_pmsr_request *req) 168 { 169 int i; 170 171 cmd->initiator_flags = 172 cpu_to_le32(IWL_TOF_INITIATOR_FLAGS_MACADDR_RANDOM | 173 IWL_TOF_INITIATOR_FLAGS_NON_ASAP_SUPPORT); 174 cmd->request_id = req->cookie; 175 cmd->num_of_ap = req->n_peers; 176 177 /* 178 * Use a large value for "no timeout". Don't use the maximum value 179 * because of fw limitations. 180 */ 181 if (req->timeout) 182 cmd->req_timeout_ms = cpu_to_le32(req->timeout); 183 else 184 cmd->req_timeout_ms = cpu_to_le32(0xfffff); 185 186 memcpy(cmd->macaddr_template, req->mac_addr, ETH_ALEN); 187 for (i = 0; i < ETH_ALEN; i++) 188 cmd->macaddr_mask[i] = ~req->mac_addr_mask[i]; 189 190 if (vif->bss_conf.assoc) 191 memcpy(cmd->range_req_bssid, vif->bss_conf.bssid, ETH_ALEN); 192 else 193 eth_broadcast_addr(cmd->range_req_bssid); 194 195 /* TODO: fill in tsf_mac_id if needed */ 196 cmd->tsf_mac_id = cpu_to_le32(0xff); 197 } 198 199 static int iwl_mvm_ftm_target_chandef(struct iwl_mvm *mvm, 200 struct cfg80211_pmsr_request_peer *peer, 201 u8 *channel, u8 *bandwidth, 202 u8 *ctrl_ch_position) 203 { 204 u32 freq = peer->chandef.chan->center_freq; 205 206 *channel = ieee80211_frequency_to_channel(freq); 207 208 switch (peer->chandef.width) { 209 case NL80211_CHAN_WIDTH_20_NOHT: 210 *bandwidth = IWL_TOF_BW_20_LEGACY; 211 break; 212 case NL80211_CHAN_WIDTH_20: 213 *bandwidth = IWL_TOF_BW_20_HT; 214 break; 215 case NL80211_CHAN_WIDTH_40: 216 *bandwidth = IWL_TOF_BW_40; 217 break; 218 case NL80211_CHAN_WIDTH_80: 219 *bandwidth = IWL_TOF_BW_80; 220 break; 221 default: 222 IWL_ERR(mvm, "Unsupported BW in FTM request (%d)\n", 223 peer->chandef.width); 224 return -EINVAL; 225 } 226 227 *ctrl_ch_position = (peer->chandef.width > NL80211_CHAN_WIDTH_20) ? 228 iwl_mvm_get_ctrl_pos(&peer->chandef) : 0; 229 230 return 0; 231 } 232 233 static int 234 iwl_mvm_ftm_put_target_v2(struct iwl_mvm *mvm, 235 struct cfg80211_pmsr_request_peer *peer, 236 struct iwl_tof_range_req_ap_entry_v2 *target) 237 { 238 int ret; 239 240 ret = iwl_mvm_ftm_target_chandef(mvm, peer, &target->channel_num, 241 &target->bandwidth, 242 &target->ctrl_ch_position); 243 if (ret) 244 return ret; 245 246 memcpy(target->bssid, peer->addr, ETH_ALEN); 247 target->burst_period = 248 cpu_to_le16(peer->ftm.burst_period); 249 target->samples_per_burst = peer->ftm.ftms_per_burst; 250 target->num_of_bursts = peer->ftm.num_bursts_exp; 251 target->measure_type = 0; /* regular two-sided FTM */ 252 target->retries_per_sample = peer->ftm.ftmr_retries; 253 target->asap_mode = peer->ftm.asap; 254 target->enable_dyn_ack = IWL_MVM_FTM_INITIATOR_DYNACK; 255 256 if (peer->ftm.request_lci) 257 target->location_req |= IWL_TOF_LOC_LCI; 258 if (peer->ftm.request_civicloc) 259 target->location_req |= IWL_TOF_LOC_CIVIC; 260 261 target->algo_type = IWL_MVM_FTM_INITIATOR_ALGO; 262 263 return 0; 264 } 265 266 #define FTM_PUT_FLAG(flag) (target->initiator_ap_flags |= \ 267 cpu_to_le32(IWL_INITIATOR_AP_FLAGS_##flag)) 268 269 static int iwl_mvm_ftm_put_target(struct iwl_mvm *mvm, 270 struct cfg80211_pmsr_request_peer *peer, 271 struct iwl_tof_range_req_ap_entry *target) 272 { 273 int ret; 274 275 ret = iwl_mvm_ftm_target_chandef(mvm, peer, &target->channel_num, 276 &target->bandwidth, 277 &target->ctrl_ch_position); 278 if (ret) 279 return ret; 280 281 memcpy(target->bssid, peer->addr, ETH_ALEN); 282 target->burst_period = 283 cpu_to_le16(peer->ftm.burst_period); 284 target->samples_per_burst = peer->ftm.ftms_per_burst; 285 target->num_of_bursts = peer->ftm.num_bursts_exp; 286 target->ftmr_max_retries = peer->ftm.ftmr_retries; 287 target->initiator_ap_flags = cpu_to_le32(0); 288 289 if (peer->ftm.asap) 290 FTM_PUT_FLAG(ASAP); 291 292 if (peer->ftm.request_lci) 293 FTM_PUT_FLAG(LCI_REQUEST); 294 295 if (peer->ftm.request_civicloc) 296 FTM_PUT_FLAG(CIVIC_REQUEST); 297 298 if (IWL_MVM_FTM_INITIATOR_DYNACK) 299 FTM_PUT_FLAG(DYN_ACK); 300 301 if (IWL_MVM_FTM_INITIATOR_ALGO == IWL_TOF_ALGO_TYPE_LINEAR_REG) 302 FTM_PUT_FLAG(ALGO_LR); 303 else if (IWL_MVM_FTM_INITIATOR_ALGO == IWL_TOF_ALGO_TYPE_FFT) 304 FTM_PUT_FLAG(ALGO_FFT); 305 306 return 0; 307 } 308 309 int iwl_mvm_ftm_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 310 struct cfg80211_pmsr_request *req) 311 { 312 struct iwl_tof_range_req_cmd_v5 cmd_v5; 313 struct iwl_tof_range_req_cmd cmd; 314 bool new_api = fw_has_api(&mvm->fw->ucode_capa, 315 IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ); 316 u8 num_of_ap; 317 struct iwl_host_cmd hcmd = { 318 .id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0), 319 .dataflags[0] = IWL_HCMD_DFL_DUP, 320 }; 321 u32 status = 0; 322 int err, i; 323 324 lockdep_assert_held(&mvm->mutex); 325 326 if (mvm->ftm_initiator.req) 327 return -EBUSY; 328 329 if (new_api) { 330 iwl_mvm_ftm_cmd(mvm, vif, &cmd, req); 331 hcmd.data[0] = &cmd; 332 hcmd.len[0] = sizeof(cmd); 333 num_of_ap = cmd.num_of_ap; 334 } else { 335 iwl_mvm_ftm_cmd_v5(mvm, vif, &cmd_v5, req); 336 hcmd.data[0] = &cmd_v5; 337 hcmd.len[0] = sizeof(cmd_v5); 338 num_of_ap = cmd_v5.num_of_ap; 339 } 340 341 for (i = 0; i < num_of_ap; i++) { 342 struct cfg80211_pmsr_request_peer *peer = &req->peers[i]; 343 344 if (new_api) 345 err = iwl_mvm_ftm_put_target(mvm, peer, &cmd.ap[i]); 346 else 347 err = iwl_mvm_ftm_put_target_v2(mvm, peer, 348 &cmd_v5.ap[i]); 349 350 if (err) 351 return err; 352 } 353 354 err = iwl_mvm_send_cmd_status(mvm, &hcmd, &status); 355 if (!err && status) { 356 IWL_ERR(mvm, "FTM range request command failure, status: %u\n", 357 status); 358 err = iwl_ftm_range_request_status_to_err(status); 359 } 360 361 if (!err) { 362 mvm->ftm_initiator.req = req; 363 mvm->ftm_initiator.req_wdev = ieee80211_vif_to_wdev(vif); 364 } 365 366 return err; 367 } 368 369 void iwl_mvm_ftm_abort(struct iwl_mvm *mvm, struct cfg80211_pmsr_request *req) 370 { 371 struct iwl_tof_range_abort_cmd cmd = { 372 .request_id = req->cookie, 373 }; 374 375 lockdep_assert_held(&mvm->mutex); 376 377 if (req != mvm->ftm_initiator.req) 378 return; 379 380 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(TOF_RANGE_ABORT_CMD, 381 LOCATION_GROUP, 0), 382 0, sizeof(cmd), &cmd)) 383 IWL_ERR(mvm, "failed to abort FTM process\n"); 384 } 385 386 static int iwl_mvm_ftm_find_peer(struct cfg80211_pmsr_request *req, 387 const u8 *addr) 388 { 389 int i; 390 391 for (i = 0; i < req->n_peers; i++) { 392 struct cfg80211_pmsr_request_peer *peer = &req->peers[i]; 393 394 if (ether_addr_equal_unaligned(peer->addr, addr)) 395 return i; 396 } 397 398 return -ENOENT; 399 } 400 401 static u64 iwl_mvm_ftm_get_host_time(struct iwl_mvm *mvm, __le32 fw_gp2_ts) 402 { 403 u32 gp2_ts = le32_to_cpu(fw_gp2_ts); 404 u32 curr_gp2, diff; 405 u64 now_from_boot_ns; 406 407 iwl_mvm_get_sync_time(mvm, &curr_gp2, &now_from_boot_ns); 408 409 if (curr_gp2 >= gp2_ts) 410 diff = curr_gp2 - gp2_ts; 411 else 412 diff = curr_gp2 + (U32_MAX - gp2_ts + 1); 413 414 return now_from_boot_ns - (u64)diff * 1000; 415 } 416 417 static void iwl_mvm_ftm_get_lci_civic(struct iwl_mvm *mvm, 418 struct cfg80211_pmsr_result *res) 419 { 420 struct iwl_mvm_loc_entry *entry; 421 422 list_for_each_entry(entry, &mvm->ftm_initiator.loc_list, list) { 423 if (!ether_addr_equal_unaligned(res->addr, entry->addr)) 424 continue; 425 426 if (entry->lci_len) { 427 res->ftm.lci_len = entry->lci_len; 428 res->ftm.lci = entry->buf; 429 } 430 431 if (entry->civic_len) { 432 res->ftm.civicloc_len = entry->civic_len; 433 res->ftm.civicloc = entry->buf + entry->lci_len; 434 } 435 436 /* we found the entry we needed */ 437 break; 438 } 439 } 440 441 static int iwl_mvm_ftm_range_resp_valid(struct iwl_mvm *mvm, u8 request_id, 442 u8 num_of_aps) 443 { 444 lockdep_assert_held(&mvm->mutex); 445 446 if (request_id != (u8)mvm->ftm_initiator.req->cookie) { 447 IWL_ERR(mvm, "Request ID mismatch, got %u, active %u\n", 448 request_id, (u8)mvm->ftm_initiator.req->cookie); 449 return -EINVAL; 450 } 451 452 if (num_of_aps > mvm->ftm_initiator.req->n_peers) { 453 IWL_ERR(mvm, "FTM range response invalid\n"); 454 return -EINVAL; 455 } 456 457 return 0; 458 } 459 460 static void iwl_mvm_debug_range_resp(struct iwl_mvm *mvm, u8 index, 461 struct cfg80211_pmsr_result *res) 462 { 463 s64 rtt_avg = div_s64(res->ftm.rtt_avg * 100, 6666); 464 465 IWL_DEBUG_INFO(mvm, "entry %d\n", index); 466 IWL_DEBUG_INFO(mvm, "\tstatus: %d\n", res->status); 467 IWL_DEBUG_INFO(mvm, "\tBSSID: %pM\n", res->addr); 468 IWL_DEBUG_INFO(mvm, "\thost time: %llu\n", res->host_time); 469 IWL_DEBUG_INFO(mvm, "\tburst index: %hhu\n", res->ftm.burst_index); 470 IWL_DEBUG_INFO(mvm, "\tsuccess num: %u\n", res->ftm.num_ftmr_successes); 471 IWL_DEBUG_INFO(mvm, "\trssi: %d\n", res->ftm.rssi_avg); 472 IWL_DEBUG_INFO(mvm, "\trssi spread: %hhu\n", res->ftm.rssi_spread); 473 IWL_DEBUG_INFO(mvm, "\trtt: %lld\n", res->ftm.rtt_avg); 474 IWL_DEBUG_INFO(mvm, "\trtt var: %llu\n", res->ftm.rtt_variance); 475 IWL_DEBUG_INFO(mvm, "\trtt spread: %llu\n", res->ftm.rtt_spread); 476 IWL_DEBUG_INFO(mvm, "\tdistance: %lld\n", rtt_avg); 477 } 478 479 void iwl_mvm_ftm_range_resp(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 480 { 481 struct iwl_rx_packet *pkt = rxb_addr(rxb); 482 struct iwl_tof_range_rsp_ntfy_v5 *fw_resp_v5 = (void *)pkt->data; 483 struct iwl_tof_range_rsp_ntfy_v6 *fw_resp_v6 = (void *)pkt->data; 484 struct iwl_tof_range_rsp_ntfy *fw_resp = (void *)pkt->data; 485 int i; 486 bool new_api = fw_has_api(&mvm->fw->ucode_capa, 487 IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ); 488 u8 num_of_aps, last_in_batch; 489 490 lockdep_assert_held(&mvm->mutex); 491 492 if (!mvm->ftm_initiator.req) { 493 IWL_ERR(mvm, "Got FTM response but have no request?\n"); 494 return; 495 } 496 497 if (new_api) { 498 if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp->request_id, 499 fw_resp->num_of_aps)) 500 return; 501 502 num_of_aps = fw_resp->num_of_aps; 503 last_in_batch = fw_resp->last_report; 504 } else { 505 if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp_v5->request_id, 506 fw_resp_v5->num_of_aps)) 507 return; 508 509 num_of_aps = fw_resp_v5->num_of_aps; 510 last_in_batch = fw_resp_v5->last_in_batch; 511 } 512 513 IWL_DEBUG_INFO(mvm, "Range response received\n"); 514 IWL_DEBUG_INFO(mvm, "request id: %lld, num of entries: %hhu\n", 515 mvm->ftm_initiator.req->cookie, num_of_aps); 516 517 for (i = 0; i < num_of_aps && i < IWL_MVM_TOF_MAX_APS; i++) { 518 struct cfg80211_pmsr_result result = {}; 519 struct iwl_tof_range_rsp_ap_entry_ntfy *fw_ap; 520 int peer_idx; 521 522 if (new_api) { 523 if (fw_has_api(&mvm->fw->ucode_capa, 524 IWL_UCODE_TLV_API_FTM_RTT_ACCURACY)) 525 fw_ap = &fw_resp->ap[i]; 526 else 527 fw_ap = (void *)&fw_resp_v6->ap[i]; 528 529 result.final = fw_resp->ap[i].last_burst; 530 } else { 531 /* the first part is the same for old and new APIs */ 532 fw_ap = (void *)&fw_resp_v5->ap[i]; 533 /* 534 * FIXME: the firmware needs to report this, we don't 535 * even know the number of bursts the responder picked 536 * (if we asked it to) 537 */ 538 result.final = 0; 539 } 540 541 peer_idx = iwl_mvm_ftm_find_peer(mvm->ftm_initiator.req, 542 fw_ap->bssid); 543 if (peer_idx < 0) { 544 IWL_WARN(mvm, 545 "Unknown address (%pM, target #%d) in FTM response\n", 546 fw_ap->bssid, i); 547 continue; 548 } 549 550 switch (fw_ap->measure_status) { 551 case IWL_TOF_ENTRY_SUCCESS: 552 result.status = NL80211_PMSR_STATUS_SUCCESS; 553 break; 554 case IWL_TOF_ENTRY_TIMING_MEASURE_TIMEOUT: 555 result.status = NL80211_PMSR_STATUS_TIMEOUT; 556 break; 557 case IWL_TOF_ENTRY_NO_RESPONSE: 558 result.status = NL80211_PMSR_STATUS_FAILURE; 559 result.ftm.failure_reason = 560 NL80211_PMSR_FTM_FAILURE_NO_RESPONSE; 561 break; 562 case IWL_TOF_ENTRY_REQUEST_REJECTED: 563 result.status = NL80211_PMSR_STATUS_FAILURE; 564 result.ftm.failure_reason = 565 NL80211_PMSR_FTM_FAILURE_PEER_BUSY; 566 result.ftm.busy_retry_time = fw_ap->refusal_period; 567 break; 568 default: 569 result.status = NL80211_PMSR_STATUS_FAILURE; 570 result.ftm.failure_reason = 571 NL80211_PMSR_FTM_FAILURE_UNSPECIFIED; 572 break; 573 } 574 memcpy(result.addr, fw_ap->bssid, ETH_ALEN); 575 result.host_time = iwl_mvm_ftm_get_host_time(mvm, 576 fw_ap->timestamp); 577 result.type = NL80211_PMSR_TYPE_FTM; 578 result.ftm.burst_index = mvm->ftm_initiator.responses[peer_idx]; 579 mvm->ftm_initiator.responses[peer_idx]++; 580 result.ftm.rssi_avg = fw_ap->rssi; 581 result.ftm.rssi_avg_valid = 1; 582 result.ftm.rssi_spread = fw_ap->rssi_spread; 583 result.ftm.rssi_spread_valid = 1; 584 result.ftm.rtt_avg = (s32)le32_to_cpu(fw_ap->rtt); 585 result.ftm.rtt_avg_valid = 1; 586 result.ftm.rtt_variance = le32_to_cpu(fw_ap->rtt_variance); 587 result.ftm.rtt_variance_valid = 1; 588 result.ftm.rtt_spread = le32_to_cpu(fw_ap->rtt_spread); 589 result.ftm.rtt_spread_valid = 1; 590 591 iwl_mvm_ftm_get_lci_civic(mvm, &result); 592 593 cfg80211_pmsr_report(mvm->ftm_initiator.req_wdev, 594 mvm->ftm_initiator.req, 595 &result, GFP_KERNEL); 596 597 if (fw_has_api(&mvm->fw->ucode_capa, 598 IWL_UCODE_TLV_API_FTM_RTT_ACCURACY)) 599 IWL_DEBUG_INFO(mvm, "RTT confidence: %hhu\n", 600 fw_ap->rttConfidence); 601 602 iwl_mvm_debug_range_resp(mvm, i, &result); 603 } 604 605 if (last_in_batch) { 606 cfg80211_pmsr_complete(mvm->ftm_initiator.req_wdev, 607 mvm->ftm_initiator.req, 608 GFP_KERNEL); 609 iwl_mvm_ftm_reset(mvm); 610 } 611 } 612 613 void iwl_mvm_ftm_lc_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) 614 { 615 struct iwl_rx_packet *pkt = rxb_addr(rxb); 616 const struct ieee80211_mgmt *mgmt = (void *)pkt->data; 617 size_t len = iwl_rx_packet_payload_len(pkt); 618 struct iwl_mvm_loc_entry *entry; 619 const u8 *ies, *lci, *civic, *msr_ie; 620 size_t ies_len, lci_len = 0, civic_len = 0; 621 size_t baselen = IEEE80211_MIN_ACTION_SIZE + 622 sizeof(mgmt->u.action.u.ftm); 623 static const u8 rprt_type_lci = IEEE80211_SPCT_MSR_RPRT_TYPE_LCI; 624 static const u8 rprt_type_civic = IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC; 625 626 if (len <= baselen) 627 return; 628 629 lockdep_assert_held(&mvm->mutex); 630 631 ies = mgmt->u.action.u.ftm.variable; 632 ies_len = len - baselen; 633 634 msr_ie = cfg80211_find_ie_match(WLAN_EID_MEASURE_REPORT, ies, ies_len, 635 &rprt_type_lci, 1, 4); 636 if (msr_ie) { 637 lci = msr_ie + 2; 638 lci_len = msr_ie[1]; 639 } 640 641 msr_ie = cfg80211_find_ie_match(WLAN_EID_MEASURE_REPORT, ies, ies_len, 642 &rprt_type_civic, 1, 4); 643 if (msr_ie) { 644 civic = msr_ie + 2; 645 civic_len = msr_ie[1]; 646 } 647 648 entry = kmalloc(sizeof(*entry) + lci_len + civic_len, GFP_KERNEL); 649 if (!entry) 650 return; 651 652 memcpy(entry->addr, mgmt->bssid, ETH_ALEN); 653 654 entry->lci_len = lci_len; 655 if (lci_len) 656 memcpy(entry->buf, lci, lci_len); 657 658 entry->civic_len = civic_len; 659 if (civic_len) 660 memcpy(entry->buf + lci_len, civic, civic_len); 661 662 list_add_tail(&entry->list, &mvm->ftm_initiator.loc_list); 663 } 664