| /****************************************************************************** |
| * |
| * This file is provided under a dual BSD/GPLv2 license. When using or |
| * redistributing this file, you may do so under either license. |
| * |
| * GPL LICENSE SUMMARY |
| * |
| * Copyright(c) 2015 - 2017 Intel Deutschland GmbH |
| * Copyright (C) 2018 Intel Corporation |
| * Copyright (C) 2019 Intel Corporation |
| * Copyright (C) 2020 Intel Corporation |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called COPYING. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <linuxwifi@intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| * BSD LICENSE |
| * |
| * Copyright(c) 2015 - 2017 Intel Deutschland GmbH |
| * Copyright (C) 2018 Intel Corporation |
| * Copyright (C) 2019 Intel Corporation |
| * Copyright (C) 2020 Intel Corporation |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name Intel Corporation nor the names of its |
| * contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| *****************************************************************************/ |
| #include <linux/etherdevice.h> |
| #include <linux/math64.h> |
| #include <net/cfg80211.h> |
| #include "mvm.h" |
| #include "iwl-io.h" |
| #include "iwl-prph.h" |
| #include "constants.h" |
| |
| struct iwl_mvm_loc_entry { |
| struct list_head list; |
| u8 addr[ETH_ALEN]; |
| u8 lci_len, civic_len; |
| u8 buf[]; |
| }; |
| |
| static void iwl_mvm_ftm_reset(struct iwl_mvm *mvm) |
| { |
| struct iwl_mvm_loc_entry *e, *t; |
| |
| mvm->ftm_initiator.req = NULL; |
| mvm->ftm_initiator.req_wdev = NULL; |
| memset(mvm->ftm_initiator.responses, 0, |
| sizeof(mvm->ftm_initiator.responses)); |
| list_for_each_entry_safe(e, t, &mvm->ftm_initiator.loc_list, list) { |
| list_del(&e->list); |
| kfree(e); |
| } |
| } |
| |
| void iwl_mvm_ftm_restart(struct iwl_mvm *mvm) |
| { |
| struct cfg80211_pmsr_result result = { |
| .status = NL80211_PMSR_STATUS_FAILURE, |
| .final = 1, |
| .host_time = ktime_get_boottime_ns(), |
| .type = NL80211_PMSR_TYPE_FTM, |
| }; |
| int i; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (!mvm->ftm_initiator.req) |
| return; |
| |
| for (i = 0; i < mvm->ftm_initiator.req->n_peers; i++) { |
| memcpy(result.addr, mvm->ftm_initiator.req->peers[i].addr, |
| ETH_ALEN); |
| result.ftm.burst_index = mvm->ftm_initiator.responses[i]; |
| |
| cfg80211_pmsr_report(mvm->ftm_initiator.req_wdev, |
| mvm->ftm_initiator.req, |
| &result, GFP_KERNEL); |
| } |
| |
| cfg80211_pmsr_complete(mvm->ftm_initiator.req_wdev, |
| mvm->ftm_initiator.req, GFP_KERNEL); |
| iwl_mvm_ftm_reset(mvm); |
| } |
| |
| static int |
| iwl_ftm_range_request_status_to_err(enum iwl_tof_range_request_status s) |
| { |
| switch (s) { |
| case IWL_TOF_RANGE_REQUEST_STATUS_SUCCESS: |
| return 0; |
| case IWL_TOF_RANGE_REQUEST_STATUS_BUSY: |
| return -EBUSY; |
| default: |
| WARN_ON_ONCE(1); |
| return -EIO; |
| } |
| } |
| |
| static void iwl_mvm_ftm_cmd_v5(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| struct iwl_tof_range_req_cmd_v5 *cmd, |
| struct cfg80211_pmsr_request *req) |
| { |
| int i; |
| |
| cmd->request_id = req->cookie; |
| cmd->num_of_ap = req->n_peers; |
| |
| /* use maximum for "no timeout" or bigger than what we can do */ |
| if (!req->timeout || req->timeout > 255 * 100) |
| cmd->req_timeout = 255; |
| else |
| cmd->req_timeout = DIV_ROUND_UP(req->timeout, 100); |
| |
| /* |
| * We treat it always as random, since if not we'll |
| * have filled our local address there instead. |
| */ |
| cmd->macaddr_random = 1; |
| memcpy(cmd->macaddr_template, req->mac_addr, ETH_ALEN); |
| for (i = 0; i < ETH_ALEN; i++) |
| cmd->macaddr_mask[i] = ~req->mac_addr_mask[i]; |
| |
| if (vif->bss_conf.assoc) |
| memcpy(cmd->range_req_bssid, vif->bss_conf.bssid, ETH_ALEN); |
| else |
| eth_broadcast_addr(cmd->range_req_bssid); |
| } |
| |
| static void iwl_mvm_ftm_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| struct iwl_tof_range_req_cmd *cmd, |
| struct cfg80211_pmsr_request *req) |
| { |
| int i; |
| |
| cmd->initiator_flags = |
| cpu_to_le32(IWL_TOF_INITIATOR_FLAGS_MACADDR_RANDOM | |
| IWL_TOF_INITIATOR_FLAGS_NON_ASAP_SUPPORT); |
| cmd->request_id = req->cookie; |
| cmd->num_of_ap = req->n_peers; |
| |
| /* |
| * Use a large value for "no timeout". Don't use the maximum value |
| * because of fw limitations. |
| */ |
| if (req->timeout) |
| cmd->req_timeout_ms = cpu_to_le32(req->timeout); |
| else |
| cmd->req_timeout_ms = cpu_to_le32(0xfffff); |
| |
| memcpy(cmd->macaddr_template, req->mac_addr, ETH_ALEN); |
| for (i = 0; i < ETH_ALEN; i++) |
| cmd->macaddr_mask[i] = ~req->mac_addr_mask[i]; |
| |
| if (vif->bss_conf.assoc) { |
| memcpy(cmd->range_req_bssid, vif->bss_conf.bssid, ETH_ALEN); |
| |
| /* AP's TSF is only relevant if associated */ |
| for (i = 0; i < req->n_peers; i++) { |
| if (req->peers[i].report_ap_tsf) { |
| struct iwl_mvm_vif *mvmvif = |
| iwl_mvm_vif_from_mac80211(vif); |
| |
| cmd->tsf_mac_id = cpu_to_le32(mvmvif->id); |
| return; |
| } |
| } |
| } else { |
| eth_broadcast_addr(cmd->range_req_bssid); |
| } |
| |
| /* Don't report AP's TSF */ |
| cmd->tsf_mac_id = cpu_to_le32(0xff); |
| } |
| |
| static int iwl_mvm_ftm_target_chandef(struct iwl_mvm *mvm, |
| struct cfg80211_pmsr_request_peer *peer, |
| u8 *channel, u8 *bandwidth, |
| u8 *ctrl_ch_position) |
| { |
| u32 freq = peer->chandef.chan->center_freq; |
| |
| *channel = ieee80211_frequency_to_channel(freq); |
| |
| switch (peer->chandef.width) { |
| case NL80211_CHAN_WIDTH_20_NOHT: |
| *bandwidth = IWL_TOF_BW_20_LEGACY; |
| break; |
| case NL80211_CHAN_WIDTH_20: |
| *bandwidth = IWL_TOF_BW_20_HT; |
| break; |
| case NL80211_CHAN_WIDTH_40: |
| *bandwidth = IWL_TOF_BW_40; |
| break; |
| case NL80211_CHAN_WIDTH_80: |
| *bandwidth = IWL_TOF_BW_80; |
| break; |
| default: |
| IWL_ERR(mvm, "Unsupported BW in FTM request (%d)\n", |
| peer->chandef.width); |
| return -EINVAL; |
| } |
| |
| *ctrl_ch_position = (peer->chandef.width > NL80211_CHAN_WIDTH_20) ? |
| iwl_mvm_get_ctrl_pos(&peer->chandef) : 0; |
| |
| return 0; |
| } |
| |
| static int |
| iwl_mvm_ftm_put_target_v2(struct iwl_mvm *mvm, |
| struct cfg80211_pmsr_request_peer *peer, |
| struct iwl_tof_range_req_ap_entry_v2 *target) |
| { |
| int ret; |
| |
| ret = iwl_mvm_ftm_target_chandef(mvm, peer, &target->channel_num, |
| &target->bandwidth, |
| &target->ctrl_ch_position); |
| if (ret) |
| return ret; |
| |
| memcpy(target->bssid, peer->addr, ETH_ALEN); |
| target->burst_period = |
| cpu_to_le16(peer->ftm.burst_period); |
| target->samples_per_burst = peer->ftm.ftms_per_burst; |
| target->num_of_bursts = peer->ftm.num_bursts_exp; |
| target->measure_type = 0; /* regular two-sided FTM */ |
| target->retries_per_sample = peer->ftm.ftmr_retries; |
| target->asap_mode = peer->ftm.asap; |
| target->enable_dyn_ack = IWL_MVM_FTM_INITIATOR_DYNACK; |
| |
| if (peer->ftm.request_lci) |
| target->location_req |= IWL_TOF_LOC_LCI; |
| if (peer->ftm.request_civicloc) |
| target->location_req |= IWL_TOF_LOC_CIVIC; |
| |
| target->algo_type = IWL_MVM_FTM_INITIATOR_ALGO; |
| |
| return 0; |
| } |
| |
| #define FTM_PUT_FLAG(flag) (target->initiator_ap_flags |= \ |
| cpu_to_le32(IWL_INITIATOR_AP_FLAGS_##flag)) |
| |
| static int iwl_mvm_ftm_put_target(struct iwl_mvm *mvm, |
| struct cfg80211_pmsr_request_peer *peer, |
| struct iwl_tof_range_req_ap_entry *target) |
| { |
| int ret; |
| |
| ret = iwl_mvm_ftm_target_chandef(mvm, peer, &target->channel_num, |
| &target->bandwidth, |
| &target->ctrl_ch_position); |
| if (ret) |
| return ret; |
| |
| memcpy(target->bssid, peer->addr, ETH_ALEN); |
| target->burst_period = |
| cpu_to_le16(peer->ftm.burst_period); |
| target->samples_per_burst = peer->ftm.ftms_per_burst; |
| target->num_of_bursts = peer->ftm.num_bursts_exp; |
| target->ftmr_max_retries = peer->ftm.ftmr_retries; |
| target->initiator_ap_flags = cpu_to_le32(0); |
| |
| if (peer->ftm.asap) |
| FTM_PUT_FLAG(ASAP); |
| |
| if (peer->ftm.request_lci) |
| FTM_PUT_FLAG(LCI_REQUEST); |
| |
| if (peer->ftm.request_civicloc) |
| FTM_PUT_FLAG(CIVIC_REQUEST); |
| |
| if (IWL_MVM_FTM_INITIATOR_DYNACK) |
| FTM_PUT_FLAG(DYN_ACK); |
| |
| if (IWL_MVM_FTM_INITIATOR_ALGO == IWL_TOF_ALGO_TYPE_LINEAR_REG) |
| FTM_PUT_FLAG(ALGO_LR); |
| else if (IWL_MVM_FTM_INITIATOR_ALGO == IWL_TOF_ALGO_TYPE_FFT) |
| FTM_PUT_FLAG(ALGO_FFT); |
| |
| return 0; |
| } |
| |
| int iwl_mvm_ftm_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| struct cfg80211_pmsr_request *req) |
| { |
| struct iwl_tof_range_req_cmd_v5 cmd_v5; |
| struct iwl_tof_range_req_cmd cmd; |
| bool new_api = fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ); |
| u8 num_of_ap; |
| struct iwl_host_cmd hcmd = { |
| .id = iwl_cmd_id(TOF_RANGE_REQ_CMD, LOCATION_GROUP, 0), |
| .dataflags[0] = IWL_HCMD_DFL_DUP, |
| }; |
| u32 status = 0; |
| int err, i; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (mvm->ftm_initiator.req) |
| return -EBUSY; |
| |
| if (new_api) { |
| iwl_mvm_ftm_cmd(mvm, vif, &cmd, req); |
| hcmd.data[0] = &cmd; |
| hcmd.len[0] = sizeof(cmd); |
| num_of_ap = cmd.num_of_ap; |
| } else { |
| iwl_mvm_ftm_cmd_v5(mvm, vif, &cmd_v5, req); |
| hcmd.data[0] = &cmd_v5; |
| hcmd.len[0] = sizeof(cmd_v5); |
| num_of_ap = cmd_v5.num_of_ap; |
| } |
| |
| for (i = 0; i < num_of_ap; i++) { |
| struct cfg80211_pmsr_request_peer *peer = &req->peers[i]; |
| |
| if (new_api) |
| err = iwl_mvm_ftm_put_target(mvm, peer, &cmd.ap[i]); |
| else |
| err = iwl_mvm_ftm_put_target_v2(mvm, peer, |
| &cmd_v5.ap[i]); |
| |
| if (err) |
| return err; |
| } |
| |
| err = iwl_mvm_send_cmd_status(mvm, &hcmd, &status); |
| if (!err && status) { |
| IWL_ERR(mvm, "FTM range request command failure, status: %u\n", |
| status); |
| err = iwl_ftm_range_request_status_to_err(status); |
| } |
| |
| if (!err) { |
| mvm->ftm_initiator.req = req; |
| mvm->ftm_initiator.req_wdev = ieee80211_vif_to_wdev(vif); |
| } |
| |
| return err; |
| } |
| |
| void iwl_mvm_ftm_abort(struct iwl_mvm *mvm, struct cfg80211_pmsr_request *req) |
| { |
| struct iwl_tof_range_abort_cmd cmd = { |
| .request_id = req->cookie, |
| }; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (req != mvm->ftm_initiator.req) |
| return; |
| |
| iwl_mvm_ftm_reset(mvm); |
| |
| if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(TOF_RANGE_ABORT_CMD, |
| LOCATION_GROUP, 0), |
| 0, sizeof(cmd), &cmd)) |
| IWL_ERR(mvm, "failed to abort FTM process\n"); |
| } |
| |
| static int iwl_mvm_ftm_find_peer(struct cfg80211_pmsr_request *req, |
| const u8 *addr) |
| { |
| int i; |
| |
| for (i = 0; i < req->n_peers; i++) { |
| struct cfg80211_pmsr_request_peer *peer = &req->peers[i]; |
| |
| if (ether_addr_equal_unaligned(peer->addr, addr)) |
| return i; |
| } |
| |
| return -ENOENT; |
| } |
| |
| static u64 iwl_mvm_ftm_get_host_time(struct iwl_mvm *mvm, __le32 fw_gp2_ts) |
| { |
| u32 gp2_ts = le32_to_cpu(fw_gp2_ts); |
| u32 curr_gp2, diff; |
| u64 now_from_boot_ns; |
| |
| iwl_mvm_get_sync_time(mvm, &curr_gp2, &now_from_boot_ns); |
| |
| if (curr_gp2 >= gp2_ts) |
| diff = curr_gp2 - gp2_ts; |
| else |
| diff = curr_gp2 + (U32_MAX - gp2_ts + 1); |
| |
| return now_from_boot_ns - (u64)diff * 1000; |
| } |
| |
| static void iwl_mvm_ftm_get_lci_civic(struct iwl_mvm *mvm, |
| struct cfg80211_pmsr_result *res) |
| { |
| struct iwl_mvm_loc_entry *entry; |
| |
| list_for_each_entry(entry, &mvm->ftm_initiator.loc_list, list) { |
| if (!ether_addr_equal_unaligned(res->addr, entry->addr)) |
| continue; |
| |
| if (entry->lci_len) { |
| res->ftm.lci_len = entry->lci_len; |
| res->ftm.lci = entry->buf; |
| } |
| |
| if (entry->civic_len) { |
| res->ftm.civicloc_len = entry->civic_len; |
| res->ftm.civicloc = entry->buf + entry->lci_len; |
| } |
| |
| /* we found the entry we needed */ |
| break; |
| } |
| } |
| |
| static int iwl_mvm_ftm_range_resp_valid(struct iwl_mvm *mvm, u8 request_id, |
| u8 num_of_aps) |
| { |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (request_id != (u8)mvm->ftm_initiator.req->cookie) { |
| IWL_ERR(mvm, "Request ID mismatch, got %u, active %u\n", |
| request_id, (u8)mvm->ftm_initiator.req->cookie); |
| return -EINVAL; |
| } |
| |
| if (num_of_aps > mvm->ftm_initiator.req->n_peers) { |
| IWL_ERR(mvm, "FTM range response invalid\n"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static void iwl_mvm_debug_range_resp(struct iwl_mvm *mvm, u8 index, |
| struct cfg80211_pmsr_result *res) |
| { |
| s64 rtt_avg = div_s64(res->ftm.rtt_avg * 100, 6666); |
| |
| IWL_DEBUG_INFO(mvm, "entry %d\n", index); |
| IWL_DEBUG_INFO(mvm, "\tstatus: %d\n", res->status); |
| IWL_DEBUG_INFO(mvm, "\tBSSID: %pM\n", res->addr); |
| IWL_DEBUG_INFO(mvm, "\thost time: %llu\n", res->host_time); |
| IWL_DEBUG_INFO(mvm, "\tburst index: %hhu\n", res->ftm.burst_index); |
| IWL_DEBUG_INFO(mvm, "\tsuccess num: %u\n", res->ftm.num_ftmr_successes); |
| IWL_DEBUG_INFO(mvm, "\trssi: %d\n", res->ftm.rssi_avg); |
| IWL_DEBUG_INFO(mvm, "\trssi spread: %hhu\n", res->ftm.rssi_spread); |
| IWL_DEBUG_INFO(mvm, "\trtt: %lld\n", res->ftm.rtt_avg); |
| IWL_DEBUG_INFO(mvm, "\trtt var: %llu\n", res->ftm.rtt_variance); |
| IWL_DEBUG_INFO(mvm, "\trtt spread: %llu\n", res->ftm.rtt_spread); |
| IWL_DEBUG_INFO(mvm, "\tdistance: %lld\n", rtt_avg); |
| } |
| |
| void iwl_mvm_ftm_range_resp(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| struct iwl_tof_range_rsp_ntfy_v5 *fw_resp_v5 = (void *)pkt->data; |
| struct iwl_tof_range_rsp_ntfy_v6 *fw_resp_v6 = (void *)pkt->data; |
| struct iwl_tof_range_rsp_ntfy *fw_resp = (void *)pkt->data; |
| int i; |
| bool new_api = fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ); |
| u8 num_of_aps, last_in_batch; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| if (!mvm->ftm_initiator.req) { |
| return; |
| } |
| |
| if (new_api) { |
| if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp->request_id, |
| fw_resp->num_of_aps)) |
| return; |
| |
| num_of_aps = fw_resp->num_of_aps; |
| last_in_batch = fw_resp->last_report; |
| } else { |
| if (iwl_mvm_ftm_range_resp_valid(mvm, fw_resp_v5->request_id, |
| fw_resp_v5->num_of_aps)) |
| return; |
| |
| num_of_aps = fw_resp_v5->num_of_aps; |
| last_in_batch = fw_resp_v5->last_in_batch; |
| } |
| |
| IWL_DEBUG_INFO(mvm, "Range response received\n"); |
| IWL_DEBUG_INFO(mvm, "request id: %lld, num of entries: %hhu\n", |
| mvm->ftm_initiator.req->cookie, num_of_aps); |
| |
| for (i = 0; i < num_of_aps && i < IWL_MVM_TOF_MAX_APS; i++) { |
| struct cfg80211_pmsr_result result = {}; |
| struct iwl_tof_range_rsp_ap_entry_ntfy *fw_ap; |
| int peer_idx; |
| |
| if (new_api) { |
| if (fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_FTM_RTT_ACCURACY)) |
| fw_ap = &fw_resp->ap[i]; |
| else |
| fw_ap = (void *)&fw_resp_v6->ap[i]; |
| |
| result.final = fw_resp->ap[i].last_burst; |
| result.ap_tsf = le32_to_cpu(fw_ap->start_tsf); |
| result.ap_tsf_valid = 1; |
| } else { |
| /* the first part is the same for old and new APIs */ |
| fw_ap = (void *)&fw_resp_v5->ap[i]; |
| /* |
| * FIXME: the firmware needs to report this, we don't |
| * even know the number of bursts the responder picked |
| * (if we asked it to) |
| */ |
| result.final = 0; |
| } |
| |
| peer_idx = iwl_mvm_ftm_find_peer(mvm->ftm_initiator.req, |
| fw_ap->bssid); |
| if (peer_idx < 0) { |
| IWL_WARN(mvm, |
| "Unknown address (%pM, target #%d) in FTM response\n", |
| fw_ap->bssid, i); |
| continue; |
| } |
| |
| switch (fw_ap->measure_status) { |
| case IWL_TOF_ENTRY_SUCCESS: |
| result.status = NL80211_PMSR_STATUS_SUCCESS; |
| break; |
| case IWL_TOF_ENTRY_TIMING_MEASURE_TIMEOUT: |
| result.status = NL80211_PMSR_STATUS_TIMEOUT; |
| break; |
| case IWL_TOF_ENTRY_NO_RESPONSE: |
| result.status = NL80211_PMSR_STATUS_FAILURE; |
| result.ftm.failure_reason = |
| NL80211_PMSR_FTM_FAILURE_NO_RESPONSE; |
| break; |
| case IWL_TOF_ENTRY_REQUEST_REJECTED: |
| result.status = NL80211_PMSR_STATUS_FAILURE; |
| result.ftm.failure_reason = |
| NL80211_PMSR_FTM_FAILURE_PEER_BUSY; |
| result.ftm.busy_retry_time = fw_ap->refusal_period; |
| break; |
| default: |
| result.status = NL80211_PMSR_STATUS_FAILURE; |
| result.ftm.failure_reason = |
| NL80211_PMSR_FTM_FAILURE_UNSPECIFIED; |
| break; |
| } |
| memcpy(result.addr, fw_ap->bssid, ETH_ALEN); |
| result.host_time = iwl_mvm_ftm_get_host_time(mvm, |
| fw_ap->timestamp); |
| result.type = NL80211_PMSR_TYPE_FTM; |
| result.ftm.burst_index = mvm->ftm_initiator.responses[peer_idx]; |
| mvm->ftm_initiator.responses[peer_idx]++; |
| result.ftm.rssi_avg = fw_ap->rssi; |
| result.ftm.rssi_avg_valid = 1; |
| result.ftm.rssi_spread = fw_ap->rssi_spread; |
| result.ftm.rssi_spread_valid = 1; |
| result.ftm.rtt_avg = (s32)le32_to_cpu(fw_ap->rtt); |
| result.ftm.rtt_avg_valid = 1; |
| result.ftm.rtt_variance = le32_to_cpu(fw_ap->rtt_variance); |
| result.ftm.rtt_variance_valid = 1; |
| result.ftm.rtt_spread = le32_to_cpu(fw_ap->rtt_spread); |
| result.ftm.rtt_spread_valid = 1; |
| |
| iwl_mvm_ftm_get_lci_civic(mvm, &result); |
| |
| cfg80211_pmsr_report(mvm->ftm_initiator.req_wdev, |
| mvm->ftm_initiator.req, |
| &result, GFP_KERNEL); |
| |
| if (fw_has_api(&mvm->fw->ucode_capa, |
| IWL_UCODE_TLV_API_FTM_RTT_ACCURACY)) |
| IWL_DEBUG_INFO(mvm, "RTT confidence: %hhu\n", |
| fw_ap->rttConfidence); |
| |
| iwl_mvm_debug_range_resp(mvm, i, &result); |
| } |
| |
| if (last_in_batch) { |
| cfg80211_pmsr_complete(mvm->ftm_initiator.req_wdev, |
| mvm->ftm_initiator.req, |
| GFP_KERNEL); |
| iwl_mvm_ftm_reset(mvm); |
| } |
| } |
| |
| void iwl_mvm_ftm_lc_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) |
| { |
| struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| const struct ieee80211_mgmt *mgmt = (void *)pkt->data; |
| size_t len = iwl_rx_packet_payload_len(pkt); |
| struct iwl_mvm_loc_entry *entry; |
| const u8 *ies, *lci, *civic, *msr_ie; |
| size_t ies_len, lci_len = 0, civic_len = 0; |
| size_t baselen = IEEE80211_MIN_ACTION_SIZE + |
| sizeof(mgmt->u.action.u.ftm); |
| static const u8 rprt_type_lci = IEEE80211_SPCT_MSR_RPRT_TYPE_LCI; |
| static const u8 rprt_type_civic = IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC; |
| |
| if (len <= baselen) |
| return; |
| |
| lockdep_assert_held(&mvm->mutex); |
| |
| ies = mgmt->u.action.u.ftm.variable; |
| ies_len = len - baselen; |
| |
| msr_ie = cfg80211_find_ie_match(WLAN_EID_MEASURE_REPORT, ies, ies_len, |
| &rprt_type_lci, 1, 4); |
| if (msr_ie) { |
| lci = msr_ie + 2; |
| lci_len = msr_ie[1]; |
| } |
| |
| msr_ie = cfg80211_find_ie_match(WLAN_EID_MEASURE_REPORT, ies, ies_len, |
| &rprt_type_civic, 1, 4); |
| if (msr_ie) { |
| civic = msr_ie + 2; |
| civic_len = msr_ie[1]; |
| } |
| |
| entry = kmalloc(sizeof(*entry) + lci_len + civic_len, GFP_KERNEL); |
| if (!entry) |
| return; |
| |
| memcpy(entry->addr, mgmt->bssid, ETH_ALEN); |
| |
| entry->lci_len = lci_len; |
| if (lci_len) |
| memcpy(entry->buf, lci, lci_len); |
| |
| entry->civic_len = civic_len; |
| if (civic_len) |
| memcpy(entry->buf + lci_len, civic, civic_len); |
| |
| list_add_tail(&entry->list, &mvm->ftm_initiator.loc_list); |
| } |