drivers/net/wireless/ath/wil6210/cfg80211.c

   1 /*
   2  * Copyright (c) 2012-2015 Qualcomm Atheros, Inc.
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/etherdevice.h>
  18 #include "wil6210.h"
  19 #include "wmi.h"
  20
  21 #define CHAN60G(_channel, _flags) {                             \
  22         .band                   = IEEE80211_BAND_60GHZ,         \
  23         .center_freq            = 56160 + (2160 * (_channel)),  \
  24         .hw_value               = (_channel),                   \
  25         .flags                  = (_flags),                     \
  26         .max_antenna_gain       = 0,                            \
  27         .max_power              = 40,                           \
  28 }
  29
  30 static struct ieee80211_channel wil_60ghz_channels[] = {
  31         CHAN60G(1, 0),
  32         CHAN60G(2, 0),
  33         CHAN60G(3, 0),
  34 /* channel 4 not supported yet */
  35 };
  36
  37 static struct ieee80211_supported_band wil_band_60ghz = {
  38         .channels = wil_60ghz_channels,
  39         .n_channels = ARRAY_SIZE(wil_60ghz_channels),
  40         .ht_cap = {
  41                 .ht_supported = true,
  42                 .cap = 0, /* TODO */
  43                 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */
  44                 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */
  45                 .mcs = {
  46                                 /* MCS 1..12 - SC PHY */
  47                         .rx_mask = {0xfe, 0x1f}, /* 1..12 */
  48                         .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */
  49                 },
  50         },
  51 };
  52
  53 static const struct ieee80211_txrx_stypes
  54 wil_mgmt_stypes[NUM_NL80211_IFTYPES] = {
  55         [NL80211_IFTYPE_STATION] = {
  56                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  57                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  58                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  59                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  60         },
  61         [NL80211_IFTYPE_AP] = {
  62                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  63                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  64                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  65                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  66         },
  67         [NL80211_IFTYPE_P2P_CLIENT] = {
  68                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  69                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  70                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  71                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  72         },
  73         [NL80211_IFTYPE_P2P_GO] = {
  74                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  75                 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  76                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  77                 BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  78         },
  79 };
  80
  81 static const u32 wil_cipher_suites[] = {
  82         WLAN_CIPHER_SUITE_GCMP,
  83 };
  84
  85 int wil_iftype_nl2wmi(enum nl80211_iftype type)
  86 {
  87         static const struct {
  88                 enum nl80211_iftype nl;
  89                 enum wmi_network_type wmi;
  90         } __nl2wmi[] = {
  91                 {NL80211_IFTYPE_ADHOC,          WMI_NETTYPE_ADHOC},
  92                 {NL80211_IFTYPE_STATION,        WMI_NETTYPE_INFRA},
  93                 {NL80211_IFTYPE_AP,             WMI_NETTYPE_AP},
  94                 {NL80211_IFTYPE_P2P_CLIENT,     WMI_NETTYPE_P2P},
  95                 {NL80211_IFTYPE_P2P_GO,         WMI_NETTYPE_P2P},
  96                 {NL80211_IFTYPE_MONITOR,        WMI_NETTYPE_ADHOC}, /* FIXME */
  97         };
  98         uint i;
  99
 100         for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) {
 101                 if (__nl2wmi[i].nl == type)
 102                         return __nl2wmi[i].wmi;
 103         }
 104
 105         return -EOPNOTSUPP;
 106 }
 107
 108 int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid,
 109                        struct station_info *sinfo)
 110 {
 111         struct wmi_notify_req_cmd cmd = {
 112                 .cid = cid,
 113                 .interval_usec = 0,
 114         };
 115         struct {
 116                 struct wil6210_mbox_hdr_wmi wmi;
 117                 struct wmi_notify_req_done_event evt;
 118         } __packed reply;
 119         struct wil_net_stats *stats = &wil->sta[cid].stats;
 120         int rc;
 121
 122         rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
 123                       WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply), 20);
 124         if (rc)
 125                 return rc;
 126
 127         wil_dbg_wmi(wil, "Link status for CID %d: {\n"
 128                     "  MCS %d TSF 0x%016llx\n"
 129                     "  BF status 0x%08x SNR 0x%08x SQI %d%%\n"
 130                     "  Tx Tpt %d goodput %d Rx goodput %d\n"
 131                     "  Sectors(rx:tx) my %d:%d peer %d:%d\n""}\n",
 132                     cid, le16_to_cpu(reply.evt.bf_mcs),
 133                     le64_to_cpu(reply.evt.tsf), reply.evt.status,
 134                     le32_to_cpu(reply.evt.snr_val),
 135                     reply.evt.sqi,
 136                     le32_to_cpu(reply.evt.tx_tpt),
 137                     le32_to_cpu(reply.evt.tx_goodput),
 138                     le32_to_cpu(reply.evt.rx_goodput),
 139                     le16_to_cpu(reply.evt.my_rx_sector),
 140                     le16_to_cpu(reply.evt.my_tx_sector),
 141                     le16_to_cpu(reply.evt.other_rx_sector),
 142                     le16_to_cpu(reply.evt.other_tx_sector));
 143
 144         sinfo->generation = wil->sinfo_gen;
 145
 146         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) |
 147                         BIT(NL80211_STA_INFO_TX_BYTES) |
 148                         BIT(NL80211_STA_INFO_RX_PACKETS) |
 149                         BIT(NL80211_STA_INFO_TX_PACKETS) |
 150                         BIT(NL80211_STA_INFO_RX_BITRATE) |
 151                         BIT(NL80211_STA_INFO_TX_BITRATE) |
 152                         BIT(NL80211_STA_INFO_RX_DROP_MISC) |
 153                         BIT(NL80211_STA_INFO_TX_FAILED);
 154
 155         sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
 156         sinfo->txrate.mcs = le16_to_cpu(reply.evt.bf_mcs);
 157         sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
 158         sinfo->rxrate.mcs = stats->last_mcs_rx;
 159         sinfo->rx_bytes = stats->rx_bytes;
 160         sinfo->rx_packets = stats->rx_packets;
 161         sinfo->rx_dropped_misc = stats->rx_dropped;
 162         sinfo->tx_bytes = stats->tx_bytes;
 163         sinfo->tx_packets = stats->tx_packets;
 164         sinfo->tx_failed = stats->tx_errors;
 165
 166         if (test_bit(wil_status_fwconnected, wil->status)) {
 167                 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
 168                 sinfo->signal = reply.evt.sqi;
 169         }
 170
 171         return rc;
 172 }
 173
 174 static int wil_cfg80211_get_station(struct wiphy *wiphy,
 175                                     struct net_device *ndev,
 176                                     const u8 *mac, struct station_info *sinfo)
 177 {
 178         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 179         int rc;
 180
 181         int cid = wil_find_cid(wil, mac);
 182
 183         wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
 184         if (cid < 0)
 185                 return cid;
 186
 187         rc = wil_cid_fill_sinfo(wil, cid, sinfo);
 188
 189         return rc;
 190 }
 191
 192 /*
 193  * Find @idx-th active STA for station dump.
 194  */
 195 static int wil_find_cid_by_idx(struct wil6210_priv *wil, int idx)
 196 {
 197         int i;
 198
 199         for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
 200                 if (wil->sta[i].status == wil_sta_unused)
 201                         continue;
 202                 if (idx == 0)
 203                         return i;
 204                 idx--;
 205         }
 206
 207         return -ENOENT;
 208 }
 209
 210 static int wil_cfg80211_dump_station(struct wiphy *wiphy,
 211                                      struct net_device *dev, int idx,
 212                                      u8 *mac, struct station_info *sinfo)
 213 {
 214         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 215         int rc;
 216         int cid = wil_find_cid_by_idx(wil, idx);
 217
 218         if (cid < 0)
 219                 return -ENOENT;
 220
 221         ether_addr_copy(mac, wil->sta[cid].addr);
 222         wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
 223
 224         rc = wil_cid_fill_sinfo(wil, cid, sinfo);
 225
 226         return rc;
 227 }
 228
 229 static int wil_cfg80211_change_iface(struct wiphy *wiphy,
 230                                      struct net_device *ndev,
 231                                      enum nl80211_iftype type, u32 *flags,
 232                                      struct vif_params *params)
 233 {
 234         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 235         struct wireless_dev *wdev = wil->wdev;
 236
 237         switch (type) {
 238         case NL80211_IFTYPE_STATION:
 239         case NL80211_IFTYPE_AP:
 240         case NL80211_IFTYPE_P2P_CLIENT:
 241         case NL80211_IFTYPE_P2P_GO:
 242                 break;
 243         case NL80211_IFTYPE_MONITOR:
 244                 if (flags)
 245                         wil->monitor_flags = *flags;
 246                 else
 247                         wil->monitor_flags = 0;
 248
 249                 break;
 250         default:
 251                 return -EOPNOTSUPP;
 252         }
 253
 254         wdev->iftype = type;
 255
 256         return 0;
 257 }
 258
 259 static int wil_cfg80211_scan(struct wiphy *wiphy,
 260                              struct cfg80211_scan_request *request)
 261 {
 262         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 263         struct wireless_dev *wdev = wil->wdev;
 264         struct {
 265                 struct wmi_start_scan_cmd cmd;
 266                 u16 chnl[4];
 267         } __packed cmd;
 268         uint i, n;
 269         int rc;
 270
 271         if (wil->scan_request) {
 272                 wil_err(wil, "Already scanning\n");
 273                 return -EAGAIN;
 274         }
 275
 276         /* check we are client side */
 277         switch (wdev->iftype) {
 278         case NL80211_IFTYPE_STATION:
 279         case NL80211_IFTYPE_P2P_CLIENT:
 280                 break;
 281         default:
 282                 return -EOPNOTSUPP;
 283         }
 284
 285         /* FW don't support scan after connection attempt */
 286         if (test_bit(wil_status_dontscan, wil->status)) {
 287                 wil_err(wil, "Can't scan now\n");
 288                 return -EBUSY;
 289         }
 290
 291         wil_dbg_misc(wil, "Start scan_request 0x%p\n", request);
 292         wil_dbg_misc(wil, "SSID count: %d", request->n_ssids);
 293
 294         for (i = 0; i < request->n_ssids; i++) {
 295                 wil_dbg_misc(wil, "SSID[%d]", i);
 296                 print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 297                                      request->ssids[i].ssid,
 298                                      request->ssids[i].ssid_len);
 299         }
 300
 301         if (request->n_ssids)
 302                 rc = wmi_set_ssid(wil, request->ssids[0].ssid_len,
 303                                   request->ssids[0].ssid);
 304         else
 305                 rc = wmi_set_ssid(wil, 0, NULL);
 306
 307         if (rc) {
 308                 wil_err(wil, "set SSID for scan request failed: %d\n", rc);
 309                 return rc;
 310         }
 311
 312         wil->scan_request = request;
 313         mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
 314
 315         memset(&cmd, 0, sizeof(cmd));
 316         cmd.cmd.num_channels = 0;
 317         n = min(request->n_channels, 4U);
 318         for (i = 0; i < n; i++) {
 319                 int ch = request->channels[i]->hw_value;
 320
 321                 if (ch == 0) {
 322                         wil_err(wil,
 323                                 "Scan requested for unknown frequency %dMhz\n",
 324                                 request->channels[i]->center_freq);
 325                         continue;
 326                 }
 327                 /* 0-based channel indexes */
 328                 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
 329                 wil_dbg_misc(wil, "Scan for ch %d  : %d MHz\n", ch,
 330                              request->channels[i]->center_freq);
 331         }
 332
 333         if (request->ie_len)
 334                 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
 335                                      request->ie, request->ie_len);
 336         else
 337                 wil_dbg_misc(wil, "Scan has no IE's\n");
 338
 339         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len,
 340                         request->ie);
 341         if (rc) {
 342                 wil_err(wil, "Aborting scan, set_ie failed: %d\n", rc);
 343                 goto out;
 344         }
 345
 346         rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
 347                         cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
 348
 349 out:
 350         if (rc) {
 351                 del_timer_sync(&wil->scan_timer);
 352                 wil->scan_request = NULL;
 353         }
 354
 355         return rc;
 356 }
 357
 358 static void wil_print_crypto(struct wil6210_priv *wil,
 359                              struct cfg80211_crypto_settings *c)
 360 {
 361         int i, n;
 362
 363         wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
 364                      c->wpa_versions, c->cipher_group);
 365         wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
 366         n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
 367         for (i = 0; i < n; i++)
 368                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 369                              c->ciphers_pairwise[i]);
 370         wil_dbg_misc(wil, "}\n");
 371         wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
 372         n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
 373         for (i = 0; i < n; i++)
 374                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 375                              c->akm_suites[i]);
 376         wil_dbg_misc(wil, "}\n");
 377         wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
 378                      c->control_port, be16_to_cpu(c->control_port_ethertype),
 379                      c->control_port_no_encrypt);
 380 }
 381
 382 static void wil_print_connect_params(struct wil6210_priv *wil,
 383                                      struct cfg80211_connect_params *sme)
 384 {
 385         wil_info(wil, "Connecting to:\n");
 386         if (sme->channel) {
 387                 wil_info(wil, "  Channel: %d freq %d\n",
 388                          sme->channel->hw_value, sme->channel->center_freq);
 389         }
 390         if (sme->bssid)
 391                 wil_info(wil, "  BSSID: %pM\n", sme->bssid);
 392         if (sme->ssid)
 393                 print_hex_dump(KERN_INFO, "  SSID: ", DUMP_PREFIX_OFFSET,
 394                                16, 1, sme->ssid, sme->ssid_len, true);
 395         wil_info(wil, "  Privacy: %s\n", sme->privacy ? "secure" : "open");
 396         wil_print_crypto(wil, &sme->crypto);
 397 }
 398
 399 static int wil_cfg80211_connect(struct wiphy *wiphy,
 400                                 struct net_device *ndev,
 401                                 struct cfg80211_connect_params *sme)
 402 {
 403         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 404         struct cfg80211_bss *bss;
 405         struct wmi_connect_cmd conn;
 406         const u8 *ssid_eid;
 407         const u8 *rsn_eid;
 408         int ch;
 409         int rc = 0;
 410
 411         wil_print_connect_params(wil, sme);
 412
 413         if (test_bit(wil_status_fwconnecting, wil->status) ||
 414             test_bit(wil_status_fwconnected, wil->status))
 415                 return -EALREADY;
 416
 417         if (sme->ie_len > WMI_MAX_IE_LEN) {
 418                 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
 419                 return -ERANGE;
 420         }
 421
 422         rsn_eid = sme->ie ?
 423                         cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
 424                         NULL;
 425         if (sme->privacy && !rsn_eid)
 426                 wil_info(wil, "WSC connection\n");
 427
 428         bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 429                                sme->ssid, sme->ssid_len,
 430                                IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY);
 431         if (!bss) {
 432                 wil_err(wil, "Unable to find BSS\n");
 433                 return -ENOENT;
 434         }
 435
 436         ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
 437         if (!ssid_eid) {
 438                 wil_err(wil, "No SSID\n");
 439                 rc = -ENOENT;
 440                 goto out;
 441         }
 442         wil->privacy = sme->privacy;
 443
 444         if (wil->privacy) {
 445                 /* For secure assoc, remove old keys */
 446                 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 447                                         WMI_KEY_USE_PAIRWISE);
 448                 if (rc) {
 449                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n");
 450                         goto out;
 451                 }
 452                 rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 453                                         WMI_KEY_USE_RX_GROUP);
 454                 if (rc) {
 455                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n");
 456                         goto out;
 457                 }
 458         }
 459
 460         /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
 461          * elements. Send it also in case it's empty, to erase previously set
 462          * ies in FW.
 463          */
 464         rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
 465         if (rc) {
 466                 wil_err(wil, "WMI_SET_APPIE_CMD failed\n");
 467                 goto out;
 468         }
 469
 470         /* WMI_CONNECT_CMD */
 471         memset(&conn, 0, sizeof(conn));
 472         switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
 473         case WLAN_CAPABILITY_DMG_TYPE_AP:
 474                 conn.network_type = WMI_NETTYPE_INFRA;
 475                 break;
 476         case WLAN_CAPABILITY_DMG_TYPE_PBSS:
 477                 conn.network_type = WMI_NETTYPE_P2P;
 478                 break;
 479         default:
 480                 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
 481                         bss->capability);
 482                 goto out;
 483         }
 484         if (wil->privacy) {
 485                 if (rsn_eid) { /* regular secure connection */
 486                         conn.dot11_auth_mode = WMI_AUTH11_SHARED;
 487                         conn.auth_mode = WMI_AUTH_WPA2_PSK;
 488                         conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
 489                         conn.pairwise_crypto_len = 16;
 490                         conn.group_crypto_type = WMI_CRYPT_AES_GCMP;
 491                         conn.group_crypto_len = 16;
 492                 } else { /* WSC */
 493                         conn.dot11_auth_mode = WMI_AUTH11_WSC;
 494                         conn.auth_mode = WMI_AUTH_NONE;
 495                 }
 496         } else { /* insecure connection */
 497                 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
 498                 conn.auth_mode = WMI_AUTH_NONE;
 499         }
 500
 501         conn.ssid_len = min_t(u8, ssid_eid[1], 32);
 502         memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
 503
 504         ch = bss->channel->hw_value;
 505         if (ch == 0) {
 506                 wil_err(wil, "BSS at unknown frequency %dMhz\n",
 507                         bss->channel->center_freq);
 508                 rc = -EOPNOTSUPP;
 509                 goto out;
 510         }
 511         conn.channel = ch - 1;
 512
 513         ether_addr_copy(conn.bssid, bss->bssid);
 514         ether_addr_copy(conn.dst_mac, bss->bssid);
 515
 516         set_bit(wil_status_fwconnecting, wil->status);
 517
 518         rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
 519         if (rc == 0) {
 520                 netif_carrier_on(ndev);
 521                 /* Connect can take lots of time */
 522                 mod_timer(&wil->connect_timer,
 523                           jiffies + msecs_to_jiffies(2000));
 524         } else {
 525                 clear_bit(wil_status_fwconnecting, wil->status);
 526         }
 527
 528  out:
 529         cfg80211_put_bss(wiphy, bss);
 530
 531         return rc;
 532 }
 533
 534 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
 535                                    struct net_device *ndev,
 536                                    u16 reason_code)
 537 {
 538         int rc;
 539         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 540
 541         wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code);
 542
 543         rc = wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0);
 544
 545         return rc;
 546 }
 547
 548 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 549                          struct cfg80211_mgmt_tx_params *params,
 550                          u64 *cookie)
 551 {
 552         const u8 *buf = params->buf;
 553         size_t len = params->len;
 554         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 555         int rc;
 556         bool tx_status = false;
 557         struct ieee80211_mgmt *mgmt_frame = (void *)buf;
 558         struct wmi_sw_tx_req_cmd *cmd;
 559         struct {
 560                 struct wil6210_mbox_hdr_wmi wmi;
 561                 struct wmi_sw_tx_complete_event evt;
 562         } __packed evt;
 563
 564         cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
 565         if (!cmd) {
 566                 rc = -ENOMEM;
 567                 goto out;
 568         }
 569
 570         memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
 571         cmd->len = cpu_to_le16(len);
 572         memcpy(cmd->payload, buf, len);
 573
 574         rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
 575                       WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
 576         if (rc == 0)
 577                 tx_status = !evt.evt.status;
 578
 579         kfree(cmd);
 580  out:
 581         cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
 582                                 tx_status, GFP_KERNEL);
 583         return rc;
 584 }
 585
 586 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
 587                                     struct cfg80211_chan_def *chandef)
 588 {
 589         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 590         struct wireless_dev *wdev = wil->wdev;
 591
 592         wdev->preset_chandef = *chandef;
 593
 594         return 0;
 595 }
 596
 597 static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil,
 598                                                bool pairwise)
 599 {
 600         struct wireless_dev *wdev = wil->wdev;
 601         enum wmi_key_usage rc;
 602         static const char * const key_usage_str[] = {
 603                 [WMI_KEY_USE_PAIRWISE]  = "WMI_KEY_USE_PAIRWISE",
 604                 [WMI_KEY_USE_RX_GROUP]  = "WMI_KEY_USE_RX_GROUP",
 605                 [WMI_KEY_USE_TX_GROUP]  = "WMI_KEY_USE_TX_GROUP",
 606         };
 607
 608         if (pairwise) {
 609                 rc = WMI_KEY_USE_PAIRWISE;
 610         } else {
 611                 switch (wdev->iftype) {
 612                 case NL80211_IFTYPE_STATION:
 613                         rc = WMI_KEY_USE_RX_GROUP;
 614                         break;
 615                 case NL80211_IFTYPE_AP:
 616                         rc = WMI_KEY_USE_TX_GROUP;
 617                         break;
 618                 default:
 619                         /* TODO: Rx GTK or Tx GTK? */
 620                         wil_err(wil, "Can't determine GTK type\n");
 621                         rc = WMI_KEY_USE_RX_GROUP;
 622                         break;
 623                 }
 624         }
 625         wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]);
 626
 627         return rc;
 628 }
 629
 630 static int wil_cfg80211_add_key(struct wiphy *wiphy,
 631                                 struct net_device *ndev,
 632                                 u8 key_index, bool pairwise,
 633                                 const u8 *mac_addr,
 634                                 struct key_params *params)
 635 {
 636         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 637         enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 638
 639         wil_dbg_misc(wil, "%s(%pM[%d] %s)\n", __func__, mac_addr, key_index,
 640                      pairwise ? "PTK" : "GTK");
 641
 642         return wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len,
 643                                   params->key, key_usage);
 644 }
 645
 646 static int wil_cfg80211_del_key(struct wiphy *wiphy,
 647                                 struct net_device *ndev,
 648                                 u8 key_index, bool pairwise,
 649                                 const u8 *mac_addr)
 650 {
 651         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 652         enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 653
 654         wil_dbg_misc(wil, "%s(%pM[%d] %s)\n", __func__, mac_addr, key_index,
 655                      pairwise ? "PTK" : "GTK");
 656
 657         return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage);
 658 }
 659
 660 /* Need to be present or wiphy_new() will WARN */
 661 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
 662                                         struct net_device *ndev,
 663                                         u8 key_index, bool unicast,
 664                                         bool multicast)
 665 {
 666         return 0;
 667 }
 668
 669 static int wil_remain_on_channel(struct wiphy *wiphy,
 670                                  struct wireless_dev *wdev,
 671                                  struct ieee80211_channel *chan,
 672                                  unsigned int duration,
 673                                  u64 *cookie)
 674 {
 675         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 676         int rc;
 677
 678         /* TODO: handle duration */
 679         wil_info(wil, "%s(%d, %d ms)\n", __func__, chan->center_freq, duration);
 680
 681         rc = wmi_set_channel(wil, chan->hw_value);
 682         if (rc)
 683                 return rc;
 684
 685         rc = wmi_rxon(wil, true);
 686
 687         return rc;
 688 }
 689
 690 static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
 691                                         struct wireless_dev *wdev,
 692                                         u64 cookie)
 693 {
 694         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 695         int rc;
 696
 697         wil_info(wil, "%s()\n", __func__);
 698
 699         rc = wmi_rxon(wil, false);
 700
 701         return rc;
 702 }
 703
 704 static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
 705 {
 706         print_hex_dump_bytes("head     ", DUMP_PREFIX_OFFSET,
 707                              b->head, b->head_len);
 708         print_hex_dump_bytes("tail     ", DUMP_PREFIX_OFFSET,
 709                              b->tail, b->tail_len);
 710         print_hex_dump_bytes("BCON IE  ", DUMP_PREFIX_OFFSET,
 711                              b->beacon_ies, b->beacon_ies_len);
 712         print_hex_dump_bytes("PROBE    ", DUMP_PREFIX_OFFSET,
 713                              b->probe_resp, b->probe_resp_len);
 714         print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
 715                              b->proberesp_ies, b->proberesp_ies_len);
 716         print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
 717                              b->assocresp_ies, b->assocresp_ies_len);
 718 }
 719
 720 static int wil_fix_bcon(struct wil6210_priv *wil,
 721                         struct cfg80211_beacon_data *bcon)
 722 {
 723         struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp;
 724         size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
 725         int rc = 0;
 726
 727         if (bcon->probe_resp_len <= hlen)
 728                 return 0;
 729
 730         if (!bcon->assocresp_ies) {
 731                 bcon->assocresp_ies = f->u.probe_resp.variable;
 732                 bcon->assocresp_ies_len = bcon->probe_resp_len - hlen;
 733                 rc = 1;
 734         }
 735
 736         return rc;
 737 }
 738
 739 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
 740                                       struct net_device *ndev,
 741                                       struct cfg80211_beacon_data *bcon)
 742 {
 743         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 744         struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp;
 745         size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
 746         const u8 *pr_ies = NULL;
 747         size_t pr_ies_len = 0;
 748         int rc;
 749
 750         wil_dbg_misc(wil, "%s()\n", __func__);
 751         wil_print_bcon_data(bcon);
 752
 753         if (bcon->probe_resp_len > hlen) {
 754                 pr_ies = f->u.probe_resp.variable;
 755                 pr_ies_len = bcon->probe_resp_len - hlen;
 756         }
 757
 758         if (wil_fix_bcon(wil, bcon)) {
 759                 wil_dbg_misc(wil, "Fixed bcon\n");
 760                 wil_print_bcon_data(bcon);
 761         }
 762
 763         /* FW do not form regular beacon, so bcon IE's are not set
 764          * For the DMG bcon, when it will be supported, bcon IE's will
 765          * be reused; add something like:
 766          * wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len,
 767          * bcon->beacon_ies);
 768          */
 769         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, pr_ies_len, pr_ies);
 770         if (rc) {
 771                 wil_err(wil, "set_ie(PROBE_RESP) failed\n");
 772                 return rc;
 773         }
 774
 775         rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
 776                         bcon->assocresp_ies_len,
 777                         bcon->assocresp_ies);
 778         if (rc) {
 779                 wil_err(wil, "set_ie(ASSOC_RESP) failed\n");
 780                 return rc;
 781         }
 782
 783         return 0;
 784 }
 785
 786 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
 787                                  struct net_device *ndev,
 788                                  struct cfg80211_ap_settings *info)
 789 {
 790         int rc = 0;
 791         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 792         struct wireless_dev *wdev = ndev->ieee80211_ptr;
 793         struct ieee80211_channel *channel = info->chandef.chan;
 794         struct cfg80211_beacon_data *bcon = &info->beacon;
 795         struct cfg80211_crypto_settings *crypto = &info->crypto;
 796         u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
 797         struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp;
 798         size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
 799         const u8 *pr_ies = NULL;
 800         size_t pr_ies_len = 0;
 801         u8 hidden_ssid;
 802
 803         wil_dbg_misc(wil, "%s()\n", __func__);
 804
 805         if (!channel) {
 806                 wil_err(wil, "AP: No channel???\n");
 807                 return -EINVAL;
 808         }
 809
 810         wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
 811                      channel->center_freq, info->privacy ? "secure" : "open");
 812         wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
 813                      info->privacy, info->auth_type);
 814         wil_dbg_misc(wil, "Hidden SSID mode: %d\n",
 815                      info->hidden_ssid);
 816         wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
 817                      info->dtim_period);
 818         print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 819                              info->ssid, info->ssid_len);
 820         wil_print_bcon_data(bcon);
 821         wil_print_crypto(wil, crypto);
 822
 823         if (bcon->probe_resp_len > hlen) {
 824                 pr_ies = f->u.probe_resp.variable;
 825                 pr_ies_len = bcon->probe_resp_len - hlen;
 826         }
 827
 828         if (wil_fix_bcon(wil, bcon)) {
 829                 wil_dbg_misc(wil, "Fixed bcon\n");
 830                 wil_print_bcon_data(bcon);
 831         }
 832
 833         wil_set_recovery_state(wil, fw_recovery_idle);
 834
 835         mutex_lock(&wil->mutex);
 836
 837         __wil_down(wil);
 838         rc = __wil_up(wil);
 839         if (rc)
 840                 goto out;
 841
 842         rc = wmi_set_ssid(wil, info->ssid_len, info->ssid);
 843         if (rc)
 844                 goto out;
 845
 846         /* IE's */
 847         /* bcon 'head IE's are not relevant for 60g band */
 848         /*
 849          * FW do not form regular beacon, so bcon IE's are not set
 850          * For the DMG bcon, when it will be supported, bcon IE's will
 851          * be reused; add something like:
 852          * wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len,
 853          * bcon->beacon_ies);
 854          */
 855         wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, pr_ies_len, pr_ies);
 856         wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, bcon->assocresp_ies_len,
 857                    bcon->assocresp_ies);
 858
 859         wil->privacy = info->privacy;
 860
 861         switch (info->hidden_ssid) {
 862         case NL80211_HIDDEN_SSID_NOT_IN_USE:
 863                 hidden_ssid = WMI_HIDDEN_SSID_DISABLED;
 864                 break;
 865
 866         case NL80211_HIDDEN_SSID_ZERO_LEN:
 867                 hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY;
 868                 break;
 869
 870         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
 871                 hidden_ssid = WMI_HIDDEN_SSID_CLEAR;
 872                 break;
 873
 874         default:
 875                 rc = -EOPNOTSUPP;
 876                 goto out;
 877         }
 878
 879         netif_carrier_on(ndev);
 880
 881         rc = wmi_pcp_start(wil, info->beacon_interval, wmi_nettype,
 882                            channel->hw_value, hidden_ssid);
 883         if (rc)
 884                 goto err_pcp_start;
 885
 886         rc = wil_bcast_init(wil);
 887         if (rc)
 888                 goto err_bcast;
 889
 890         goto out; /* success */
 891 err_bcast:
 892         wmi_pcp_stop(wil);
 893 err_pcp_start:
 894         netif_carrier_off(ndev);
 895 out:
 896         mutex_unlock(&wil->mutex);
 897         return rc;
 898 }
 899
 900 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
 901                                 struct net_device *ndev)
 902 {
 903         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 904
 905         wil_dbg_misc(wil, "%s()\n", __func__);
 906
 907         netif_carrier_off(ndev);
 908         wil_set_recovery_state(wil, fw_recovery_idle);
 909
 910         mutex_lock(&wil->mutex);
 911
 912         wmi_pcp_stop(wil);
 913
 914         __wil_down(wil);
 915
 916         mutex_unlock(&wil->mutex);
 917
 918         return 0;
 919 }
 920
 921 static int wil_cfg80211_del_station(struct wiphy *wiphy,
 922                                     struct net_device *dev,
 923                                     struct station_del_parameters *params)
 924 {
 925         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 926
 927         wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac,
 928                      params->reason_code);
 929
 930         mutex_lock(&wil->mutex);
 931         wil6210_disconnect(wil, params->mac, params->reason_code, false);
 932         mutex_unlock(&wil->mutex);
 933
 934         return 0;
 935 }
 936
 937 /* probe_client handling */
 938 static void wil_probe_client_handle(struct wil6210_priv *wil,
 939                                     struct wil_probe_client_req *req)
 940 {
 941         struct net_device *ndev = wil_to_ndev(wil);
 942         struct wil_sta_info *sta = &wil->sta[req->cid];
 943         /* assume STA is alive if it is still connected,
 944          * else FW will disconnect it
 945          */
 946         bool alive = (sta->status == wil_sta_connected);
 947
 948         cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
 949 }
 950
 951 static struct list_head *next_probe_client(struct wil6210_priv *wil)
 952 {
 953         struct list_head *ret = NULL;
 954
 955         mutex_lock(&wil->probe_client_mutex);
 956
 957         if (!list_empty(&wil->probe_client_pending)) {
 958                 ret = wil->probe_client_pending.next;
 959                 list_del(ret);
 960         }
 961
 962         mutex_unlock(&wil->probe_client_mutex);
 963
 964         return ret;
 965 }
 966
 967 void wil_probe_client_worker(struct work_struct *work)
 968 {
 969         struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
 970                                                 probe_client_worker);
 971         struct wil_probe_client_req *req;
 972         struct list_head *lh;
 973
 974         while ((lh = next_probe_client(wil)) != NULL) {
 975                 req = list_entry(lh, struct wil_probe_client_req, list);
 976
 977                 wil_probe_client_handle(wil, req);
 978                 kfree(req);
 979         }
 980 }
 981
 982 void wil_probe_client_flush(struct wil6210_priv *wil)
 983 {
 984         struct wil_probe_client_req *req, *t;
 985
 986         wil_dbg_misc(wil, "%s()\n", __func__);
 987
 988         mutex_lock(&wil->probe_client_mutex);
 989
 990         list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
 991                 list_del(&req->list);
 992                 kfree(req);
 993         }
 994
 995         mutex_unlock(&wil->probe_client_mutex);
 996 }
 997
 998 static int wil_cfg80211_probe_client(struct wiphy *wiphy,
 999                                      struct net_device *dev,
1000                                      const u8 *peer, u64 *cookie)
1001 {
1002         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1003         struct wil_probe_client_req *req;
1004         int cid = wil_find_cid(wil, peer);
1005
1006         wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
1007
1008         if (cid < 0)
1009                 return -ENOLINK;
1010
1011         req = kzalloc(sizeof(*req), GFP_KERNEL);
1012         if (!req)
1013                 return -ENOMEM;
1014
1015         req->cid = cid;
1016         req->cookie = cid;
1017
1018         mutex_lock(&wil->probe_client_mutex);
1019         list_add_tail(&req->list, &wil->probe_client_pending);
1020         mutex_unlock(&wil->probe_client_mutex);
1021
1022         *cookie = req->cookie;
1023         queue_work(wil->wq_service, &wil->probe_client_worker);
1024         return 0;
1025 }
1026
1027 static int wil_cfg80211_change_bss(struct wiphy *wiphy,
1028                                    struct net_device *dev,
1029                                    struct bss_parameters *params)
1030 {
1031         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1032
1033         if (params->ap_isolate >= 0) {
1034                 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
1035                              wil->ap_isolate, params->ap_isolate);
1036                 wil->ap_isolate = params->ap_isolate;
1037         }
1038
1039         return 0;
1040 }
1041
1042 static struct cfg80211_ops wil_cfg80211_ops = {
1043         .scan = wil_cfg80211_scan,
1044         .connect = wil_cfg80211_connect,
1045         .disconnect = wil_cfg80211_disconnect,
1046         .change_virtual_intf = wil_cfg80211_change_iface,
1047         .get_station = wil_cfg80211_get_station,
1048         .dump_station = wil_cfg80211_dump_station,
1049         .remain_on_channel = wil_remain_on_channel,
1050         .cancel_remain_on_channel = wil_cancel_remain_on_channel,
1051         .mgmt_tx = wil_cfg80211_mgmt_tx,
1052         .set_monitor_channel = wil_cfg80211_set_channel,
1053         .add_key = wil_cfg80211_add_key,
1054         .del_key = wil_cfg80211_del_key,
1055         .set_default_key = wil_cfg80211_set_default_key,
1056         /* AP mode */
1057         .change_beacon = wil_cfg80211_change_beacon,
1058         .start_ap = wil_cfg80211_start_ap,
1059         .stop_ap = wil_cfg80211_stop_ap,
1060         .del_station = wil_cfg80211_del_station,
1061         .probe_client = wil_cfg80211_probe_client,
1062         .change_bss = wil_cfg80211_change_bss,
1063 };
1064
1065 static void wil_wiphy_init(struct wiphy *wiphy)
1066 {
1067         wiphy->max_scan_ssids = 1;
1068         wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
1069         wiphy->max_num_pmkids = 0 /* TODO: */;
1070         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1071                                  BIT(NL80211_IFTYPE_AP) |
1072                                  BIT(NL80211_IFTYPE_MONITOR);
1073         /* TODO: enable P2P when integrated with supplicant:
1074          * BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO)
1075          */
1076         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1077                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1078         dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
1079                 __func__, wiphy->flags);
1080         wiphy->probe_resp_offload =
1081                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1082                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1083                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
1084
1085         wiphy->bands[IEEE80211_BAND_60GHZ] = &wil_band_60ghz;
1086
1087         /* TODO: figure this out */
1088         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
1089
1090         wiphy->cipher_suites = wil_cipher_suites;
1091         wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
1092         wiphy->mgmt_stypes = wil_mgmt_stypes;
1093         wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
1094 }
1095
1096 struct wireless_dev *wil_cfg80211_init(struct device *dev)
1097 {
1098         int rc = 0;
1099         struct wireless_dev *wdev;
1100
1101         dev_dbg(dev, "%s()\n", __func__);
1102
1103         wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1104         if (!wdev)
1105                 return ERR_PTR(-ENOMEM);
1106
1107         wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1108                                 sizeof(struct wil6210_priv));
1109         if (!wdev->wiphy) {
1110                 rc = -ENOMEM;
1111                 goto out;
1112         }
1113
1114         set_wiphy_dev(wdev->wiphy, dev);
1115         wil_wiphy_init(wdev->wiphy);
1116
1117         rc = wiphy_register(wdev->wiphy);
1118         if (rc < 0)
1119                 goto out_failed_reg;
1120
1121         return wdev;
1122
1123 out_failed_reg:
1124         wiphy_free(wdev->wiphy);
1125 out:
1126         kfree(wdev);
1127
1128         return ERR_PTR(rc);
1129 }
1130
1131 void wil_wdev_free(struct wil6210_priv *wil)
1132 {
1133         struct wireless_dev *wdev = wil_to_wdev(wil);
1134
1135         dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1136
1137         if (!wdev)
1138                 return;
1139
1140         wiphy_unregister(wdev->wiphy);
1141         wiphy_free(wdev->wiphy);
1142         kfree(wdev);
1143 }