kernel/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->scan_request = request;
 293         mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
 294
 295         memset(&cmd, 0, sizeof(cmd));
 296         cmd.cmd.num_channels = 0;
 297         n = min(request->n_channels, 4U);
 298         for (i = 0; i < n; i++) {
 299                 int ch = request->channels[i]->hw_value;
 300
 301                 if (ch == 0) {
 302                         wil_err(wil,
 303                                 "Scan requested for unknown frequency %dMhz\n",
 304                                 request->channels[i]->center_freq);
 305                         continue;
 306                 }
 307                 /* 0-based channel indexes */
 308                 cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
 309                 wil_dbg_misc(wil, "Scan for ch %d  : %d MHz\n", ch,
 310                              request->channels[i]->center_freq);
 311         }
 312
 313         if (request->ie_len)
 314                 print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
 315                                      request->ie, request->ie_len);
 316         else
 317                 wil_dbg_misc(wil, "Scan has no IE's\n");
 318
 319         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len,
 320                         request->ie);
 321         if (rc) {
 322                 wil_err(wil, "Aborting scan, set_ie failed: %d\n", rc);
 323                 goto out;
 324         }
 325
 326         rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
 327                         cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
 328
 329 out:
 330         if (rc) {
 331                 del_timer_sync(&wil->scan_timer);
 332                 wil->scan_request = NULL;
 333         }
 334
 335         return rc;
 336 }
 337
 338 static void wil_print_crypto(struct wil6210_priv *wil,
 339                              struct cfg80211_crypto_settings *c)
 340 {
 341         int i, n;
 342
 343         wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
 344                      c->wpa_versions, c->cipher_group);
 345         wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
 346         n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
 347         for (i = 0; i < n; i++)
 348                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 349                              c->ciphers_pairwise[i]);
 350         wil_dbg_misc(wil, "}\n");
 351         wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
 352         n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
 353         for (i = 0; i < n; i++)
 354                 wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 355                              c->akm_suites[i]);
 356         wil_dbg_misc(wil, "}\n");
 357         wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
 358                      c->control_port, be16_to_cpu(c->control_port_ethertype),
 359                      c->control_port_no_encrypt);
 360 }
 361
 362 static void wil_print_connect_params(struct wil6210_priv *wil,
 363                                      struct cfg80211_connect_params *sme)
 364 {
 365         wil_info(wil, "Connecting to:\n");
 366         if (sme->channel) {
 367                 wil_info(wil, "  Channel: %d freq %d\n",
 368                          sme->channel->hw_value, sme->channel->center_freq);
 369         }
 370         if (sme->bssid)
 371                 wil_info(wil, "  BSSID: %pM\n", sme->bssid);
 372         if (sme->ssid)
 373                 print_hex_dump(KERN_INFO, "  SSID: ", DUMP_PREFIX_OFFSET,
 374                                16, 1, sme->ssid, sme->ssid_len, true);
 375         wil_info(wil, "  Privacy: %s\n", sme->privacy ? "secure" : "open");
 376         wil_print_crypto(wil, &sme->crypto);
 377 }
 378
 379 static int wil_cfg80211_connect(struct wiphy *wiphy,
 380                                 struct net_device *ndev,
 381                                 struct cfg80211_connect_params *sme)
 382 {
 383         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 384         struct cfg80211_bss *bss;
 385         struct wmi_connect_cmd conn;
 386         const u8 *ssid_eid;
 387         const u8 *rsn_eid;
 388         int ch;
 389         int rc = 0;
 390
 391         wil_print_connect_params(wil, sme);
 392
 393         if (test_bit(wil_status_fwconnecting, wil->status) ||
 394             test_bit(wil_status_fwconnected, wil->status))
 395                 return -EALREADY;
 396
 397         if (sme->ie_len > WMI_MAX_IE_LEN) {
 398                 wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
 399                 return -ERANGE;
 400         }
 401
 402         rsn_eid = sme->ie ?
 403                         cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
 404                         NULL;
 405
 406         if (sme->privacy && !rsn_eid) {
 407                 wil_err(wil, "Missing RSN IE for secure connection\n");
 408                 return -EINVAL;
 409         }
 410
 411         bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 412                                sme->ssid, sme->ssid_len,
 413                                IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY);
 414         if (!bss) {
 415                 wil_err(wil, "Unable to find BSS\n");
 416                 return -ENOENT;
 417         }
 418
 419         ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
 420         if (!ssid_eid) {
 421                 wil_err(wil, "No SSID\n");
 422                 rc = -ENOENT;
 423                 goto out;
 424         }
 425         wil->privacy = sme->privacy;
 426
 427         if (wil->privacy) {
 428                 /* For secure assoc, send WMI_DELETE_CIPHER_KEY_CMD */
 429                 rc = wmi_del_cipher_key(wil, 0, bss->bssid);
 430                 if (rc) {
 431                         wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD failed\n");
 432                         goto out;
 433                 }
 434         }
 435
 436         /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
 437          * elements. Send it also in case it's empty, to erase previously set
 438          * ies in FW.
 439          */
 440         rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
 441         if (rc) {
 442                 wil_err(wil, "WMI_SET_APPIE_CMD failed\n");
 443                 goto out;
 444         }
 445
 446         /* WMI_CONNECT_CMD */
 447         memset(&conn, 0, sizeof(conn));
 448         switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
 449         case WLAN_CAPABILITY_DMG_TYPE_AP:
 450                 conn.network_type = WMI_NETTYPE_INFRA;
 451                 break;
 452         case WLAN_CAPABILITY_DMG_TYPE_PBSS:
 453                 conn.network_type = WMI_NETTYPE_P2P;
 454                 break;
 455         default:
 456                 wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
 457                         bss->capability);
 458                 goto out;
 459         }
 460         if (wil->privacy) {
 461                 conn.dot11_auth_mode = WMI_AUTH11_SHARED;
 462                 conn.auth_mode = WMI_AUTH_WPA2_PSK;
 463                 conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
 464                 conn.pairwise_crypto_len = 16;
 465         } else {
 466                 conn.dot11_auth_mode = WMI_AUTH11_OPEN;
 467                 conn.auth_mode = WMI_AUTH_NONE;
 468         }
 469
 470         conn.ssid_len = min_t(u8, ssid_eid[1], 32);
 471         memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
 472
 473         ch = bss->channel->hw_value;
 474         if (ch == 0) {
 475                 wil_err(wil, "BSS at unknown frequency %dMhz\n",
 476                         bss->channel->center_freq);
 477                 rc = -EOPNOTSUPP;
 478                 goto out;
 479         }
 480         conn.channel = ch - 1;
 481
 482         ether_addr_copy(conn.bssid, bss->bssid);
 483         ether_addr_copy(conn.dst_mac, bss->bssid);
 484
 485         set_bit(wil_status_fwconnecting, wil->status);
 486
 487         rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
 488         if (rc == 0) {
 489                 netif_carrier_on(ndev);
 490                 /* Connect can take lots of time */
 491                 mod_timer(&wil->connect_timer,
 492                           jiffies + msecs_to_jiffies(2000));
 493         } else {
 494                 clear_bit(wil_status_fwconnecting, wil->status);
 495         }
 496
 497  out:
 498         cfg80211_put_bss(wiphy, bss);
 499
 500         return rc;
 501 }
 502
 503 static int wil_cfg80211_disconnect(struct wiphy *wiphy,
 504                                    struct net_device *ndev,
 505                                    u16 reason_code)
 506 {
 507         int rc;
 508         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 509
 510         rc = wmi_send(wil, WMI_DISCONNECT_CMDID, NULL, 0);
 511
 512         return rc;
 513 }
 514
 515 int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 516                          struct cfg80211_mgmt_tx_params *params,
 517                          u64 *cookie)
 518 {
 519         const u8 *buf = params->buf;
 520         size_t len = params->len;
 521         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 522         int rc;
 523         bool tx_status = false;
 524         struct ieee80211_mgmt *mgmt_frame = (void *)buf;
 525         struct wmi_sw_tx_req_cmd *cmd;
 526         struct {
 527                 struct wil6210_mbox_hdr_wmi wmi;
 528                 struct wmi_sw_tx_complete_event evt;
 529         } __packed evt;
 530
 531         cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
 532         if (!cmd) {
 533                 rc = -ENOMEM;
 534                 goto out;
 535         }
 536
 537         memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
 538         cmd->len = cpu_to_le16(len);
 539         memcpy(cmd->payload, buf, len);
 540
 541         rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
 542                       WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
 543         if (rc == 0)
 544                 tx_status = !evt.evt.status;
 545
 546         kfree(cmd);
 547  out:
 548         cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
 549                                 tx_status, GFP_KERNEL);
 550         return rc;
 551 }
 552
 553 static int wil_cfg80211_set_channel(struct wiphy *wiphy,
 554                                     struct cfg80211_chan_def *chandef)
 555 {
 556         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 557         struct wireless_dev *wdev = wil->wdev;
 558
 559         wdev->preset_chandef = *chandef;
 560
 561         return 0;
 562 }
 563
 564 static int wil_cfg80211_add_key(struct wiphy *wiphy,
 565                                 struct net_device *ndev,
 566                                 u8 key_index, bool pairwise,
 567                                 const u8 *mac_addr,
 568                                 struct key_params *params)
 569 {
 570         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 571
 572         /* group key is not used */
 573         if (!pairwise)
 574                 return 0;
 575
 576         return wmi_add_cipher_key(wil, key_index, mac_addr,
 577                                   params->key_len, params->key);
 578 }
 579
 580 static int wil_cfg80211_del_key(struct wiphy *wiphy,
 581                                 struct net_device *ndev,
 582                                 u8 key_index, bool pairwise,
 583                                 const u8 *mac_addr)
 584 {
 585         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 586
 587         /* group key is not used */
 588         if (!pairwise)
 589                 return 0;
 590
 591         return wmi_del_cipher_key(wil, key_index, mac_addr);
 592 }
 593
 594 /* Need to be present or wiphy_new() will WARN */
 595 static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
 596                                         struct net_device *ndev,
 597                                         u8 key_index, bool unicast,
 598                                         bool multicast)
 599 {
 600         return 0;
 601 }
 602
 603 static int wil_remain_on_channel(struct wiphy *wiphy,
 604                                  struct wireless_dev *wdev,
 605                                  struct ieee80211_channel *chan,
 606                                  unsigned int duration,
 607                                  u64 *cookie)
 608 {
 609         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 610         int rc;
 611
 612         /* TODO: handle duration */
 613         wil_info(wil, "%s(%d, %d ms)\n", __func__, chan->center_freq, duration);
 614
 615         rc = wmi_set_channel(wil, chan->hw_value);
 616         if (rc)
 617                 return rc;
 618
 619         rc = wmi_rxon(wil, true);
 620
 621         return rc;
 622 }
 623
 624 static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
 625                                         struct wireless_dev *wdev,
 626                                         u64 cookie)
 627 {
 628         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 629         int rc;
 630
 631         wil_info(wil, "%s()\n", __func__);
 632
 633         rc = wmi_rxon(wil, false);
 634
 635         return rc;
 636 }
 637
 638 static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
 639 {
 640         print_hex_dump_bytes("head     ", DUMP_PREFIX_OFFSET,
 641                              b->head, b->head_len);
 642         print_hex_dump_bytes("tail     ", DUMP_PREFIX_OFFSET,
 643                              b->tail, b->tail_len);
 644         print_hex_dump_bytes("BCON IE  ", DUMP_PREFIX_OFFSET,
 645                              b->beacon_ies, b->beacon_ies_len);
 646         print_hex_dump_bytes("PROBE    ", DUMP_PREFIX_OFFSET,
 647                              b->probe_resp, b->probe_resp_len);
 648         print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
 649                              b->proberesp_ies, b->proberesp_ies_len);
 650         print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
 651                              b->assocresp_ies, b->assocresp_ies_len);
 652 }
 653
 654 static int wil_fix_bcon(struct wil6210_priv *wil,
 655                         struct cfg80211_beacon_data *bcon)
 656 {
 657         struct ieee80211_mgmt *f = (struct ieee80211_mgmt *)bcon->probe_resp;
 658         size_t hlen = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
 659         int rc = 0;
 660
 661         if (bcon->probe_resp_len <= hlen)
 662                 return 0;
 663
 664         if (!bcon->proberesp_ies) {
 665                 bcon->proberesp_ies = f->u.probe_resp.variable;
 666                 bcon->proberesp_ies_len = bcon->probe_resp_len - hlen;
 667                 rc = 1;
 668         }
 669         if (!bcon->assocresp_ies) {
 670                 bcon->assocresp_ies = f->u.probe_resp.variable;
 671                 bcon->assocresp_ies_len = bcon->probe_resp_len - hlen;
 672                 rc = 1;
 673         }
 674
 675         return rc;
 676 }
 677
 678 static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
 679                                       struct net_device *ndev,
 680                                       struct cfg80211_beacon_data *bcon)
 681 {
 682         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 683         int rc;
 684
 685         wil_dbg_misc(wil, "%s()\n", __func__);
 686
 687         if (wil_fix_bcon(wil, bcon)) {
 688                 wil_dbg_misc(wil, "Fixed bcon\n");
 689                 wil_print_bcon_data(bcon);
 690         }
 691
 692         /* FW do not form regular beacon, so bcon IE's are not set
 693          * For the DMG bcon, when it will be supported, bcon IE's will
 694          * be reused; add something like:
 695          * wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len,
 696          * bcon->beacon_ies);
 697          */
 698         rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP,
 699                         bcon->proberesp_ies_len,
 700                         bcon->proberesp_ies);
 701         if (rc) {
 702                 wil_err(wil, "set_ie(PROBE_RESP) failed\n");
 703                 return rc;
 704         }
 705
 706         rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
 707                         bcon->assocresp_ies_len,
 708                         bcon->assocresp_ies);
 709         if (rc) {
 710                 wil_err(wil, "set_ie(ASSOC_RESP) failed\n");
 711                 return rc;
 712         }
 713
 714         return 0;
 715 }
 716
 717 static int wil_cfg80211_start_ap(struct wiphy *wiphy,
 718                                  struct net_device *ndev,
 719                                  struct cfg80211_ap_settings *info)
 720 {
 721         int rc = 0;
 722         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 723         struct wireless_dev *wdev = ndev->ieee80211_ptr;
 724         struct ieee80211_channel *channel = info->chandef.chan;
 725         struct cfg80211_beacon_data *bcon = &info->beacon;
 726         struct cfg80211_crypto_settings *crypto = &info->crypto;
 727         u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
 728
 729         wil_dbg_misc(wil, "%s()\n", __func__);
 730
 731         if (!channel) {
 732                 wil_err(wil, "AP: No channel???\n");
 733                 return -EINVAL;
 734         }
 735
 736         wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
 737                      channel->center_freq, info->privacy ? "secure" : "open");
 738         wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
 739                      info->privacy, info->auth_type);
 740         wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
 741                      info->dtim_period);
 742         print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 743                              info->ssid, info->ssid_len);
 744         wil_print_bcon_data(bcon);
 745         wil_print_crypto(wil, crypto);
 746
 747         if (wil_fix_bcon(wil, bcon)) {
 748                 wil_dbg_misc(wil, "Fixed bcon\n");
 749                 wil_print_bcon_data(bcon);
 750         }
 751
 752         wil_set_recovery_state(wil, fw_recovery_idle);
 753
 754         mutex_lock(&wil->mutex);
 755
 756         __wil_down(wil);
 757         rc = __wil_up(wil);
 758         if (rc)
 759                 goto out;
 760
 761         rc = wmi_set_ssid(wil, info->ssid_len, info->ssid);
 762         if (rc)
 763                 goto out;
 764
 765         /* IE's */
 766         /* bcon 'head IE's are not relevant for 60g band */
 767         /*
 768          * FW do not form regular beacon, so bcon IE's are not set
 769          * For the DMG bcon, when it will be supported, bcon IE's will
 770          * be reused; add something like:
 771          * wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->beacon_ies_len,
 772          * bcon->beacon_ies);
 773          */
 774         wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, bcon->proberesp_ies_len,
 775                    bcon->proberesp_ies);
 776         wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, bcon->assocresp_ies_len,
 777                    bcon->assocresp_ies);
 778
 779         wil->privacy = info->privacy;
 780
 781         netif_carrier_on(ndev);
 782
 783         rc = wmi_pcp_start(wil, info->beacon_interval, wmi_nettype,
 784                            channel->hw_value);
 785         if (rc)
 786                 goto err_pcp_start;
 787
 788         rc = wil_bcast_init(wil);
 789         if (rc)
 790                 goto err_bcast;
 791
 792         goto out; /* success */
 793 err_bcast:
 794         wmi_pcp_stop(wil);
 795 err_pcp_start:
 796         netif_carrier_off(ndev);
 797 out:
 798         mutex_unlock(&wil->mutex);
 799         return rc;
 800 }
 801
 802 static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
 803                                 struct net_device *ndev)
 804 {
 805         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 806
 807         wil_dbg_misc(wil, "%s()\n", __func__);
 808
 809         netif_carrier_off(ndev);
 810         wil_set_recovery_state(wil, fw_recovery_idle);
 811
 812         mutex_lock(&wil->mutex);
 813
 814         wmi_pcp_stop(wil);
 815
 816         __wil_down(wil);
 817         __wil_up(wil);
 818
 819         mutex_unlock(&wil->mutex);
 820
 821         /* some functions above might fail (e.g. __wil_up). Nevertheless, we
 822          * return success because AP has stopped
 823          */
 824         return 0;
 825 }
 826
 827 static int wil_cfg80211_del_station(struct wiphy *wiphy,
 828                                     struct net_device *dev,
 829                                     struct station_del_parameters *params)
 830 {
 831         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 832
 833         mutex_lock(&wil->mutex);
 834         wil6210_disconnect(wil, params->mac, params->reason_code, false);
 835         mutex_unlock(&wil->mutex);
 836
 837         return 0;
 838 }
 839
 840 /* probe_client handling */
 841 static void wil_probe_client_handle(struct wil6210_priv *wil,
 842                                     struct wil_probe_client_req *req)
 843 {
 844         struct net_device *ndev = wil_to_ndev(wil);
 845         struct wil_sta_info *sta = &wil->sta[req->cid];
 846         /* assume STA is alive if it is still connected,
 847          * else FW will disconnect it
 848          */
 849         bool alive = (sta->status == wil_sta_connected);
 850
 851         cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
 852 }
 853
 854 static struct list_head *next_probe_client(struct wil6210_priv *wil)
 855 {
 856         struct list_head *ret = NULL;
 857
 858         mutex_lock(&wil->probe_client_mutex);
 859
 860         if (!list_empty(&wil->probe_client_pending)) {
 861                 ret = wil->probe_client_pending.next;
 862                 list_del(ret);
 863         }
 864
 865         mutex_unlock(&wil->probe_client_mutex);
 866
 867         return ret;
 868 }
 869
 870 void wil_probe_client_worker(struct work_struct *work)
 871 {
 872         struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
 873                                                 probe_client_worker);
 874         struct wil_probe_client_req *req;
 875         struct list_head *lh;
 876
 877         while ((lh = next_probe_client(wil)) != NULL) {
 878                 req = list_entry(lh, struct wil_probe_client_req, list);
 879
 880                 wil_probe_client_handle(wil, req);
 881                 kfree(req);
 882         }
 883 }
 884
 885 void wil_probe_client_flush(struct wil6210_priv *wil)
 886 {
 887         struct wil_probe_client_req *req, *t;
 888
 889         wil_dbg_misc(wil, "%s()\n", __func__);
 890
 891         mutex_lock(&wil->probe_client_mutex);
 892
 893         list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
 894                 list_del(&req->list);
 895                 kfree(req);
 896         }
 897
 898         mutex_unlock(&wil->probe_client_mutex);
 899 }
 900
 901 static int wil_cfg80211_probe_client(struct wiphy *wiphy,
 902                                      struct net_device *dev,
 903                                      const u8 *peer, u64 *cookie)
 904 {
 905         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 906         struct wil_probe_client_req *req;
 907         int cid = wil_find_cid(wil, peer);
 908
 909         wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
 910
 911         if (cid < 0)
 912                 return -ENOLINK;
 913
 914         req = kzalloc(sizeof(*req), GFP_KERNEL);
 915         if (!req)
 916                 return -ENOMEM;
 917
 918         req->cid = cid;
 919         req->cookie = cid;
 920
 921         mutex_lock(&wil->probe_client_mutex);
 922         list_add_tail(&req->list, &wil->probe_client_pending);
 923         mutex_unlock(&wil->probe_client_mutex);
 924
 925         *cookie = req->cookie;
 926         queue_work(wil->wq_service, &wil->probe_client_worker);
 927         return 0;
 928 }
 929
 930 static int wil_cfg80211_change_bss(struct wiphy *wiphy,
 931                                    struct net_device *dev,
 932                                    struct bss_parameters *params)
 933 {
 934         struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 935
 936         if (params->ap_isolate >= 0) {
 937                 wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
 938                              wil->ap_isolate, params->ap_isolate);
 939                 wil->ap_isolate = params->ap_isolate;
 940         }
 941
 942         return 0;
 943 }
 944
 945 static struct cfg80211_ops wil_cfg80211_ops = {
 946         .scan = wil_cfg80211_scan,
 947         .connect = wil_cfg80211_connect,
 948         .disconnect = wil_cfg80211_disconnect,
 949         .change_virtual_intf = wil_cfg80211_change_iface,
 950         .get_station = wil_cfg80211_get_station,
 951         .dump_station = wil_cfg80211_dump_station,
 952         .remain_on_channel = wil_remain_on_channel,
 953         .cancel_remain_on_channel = wil_cancel_remain_on_channel,
 954         .mgmt_tx = wil_cfg80211_mgmt_tx,
 955         .set_monitor_channel = wil_cfg80211_set_channel,
 956         .add_key = wil_cfg80211_add_key,
 957         .del_key = wil_cfg80211_del_key,
 958         .set_default_key = wil_cfg80211_set_default_key,
 959         /* AP mode */
 960         .change_beacon = wil_cfg80211_change_beacon,
 961         .start_ap = wil_cfg80211_start_ap,
 962         .stop_ap = wil_cfg80211_stop_ap,
 963         .del_station = wil_cfg80211_del_station,
 964         .probe_client = wil_cfg80211_probe_client,
 965         .change_bss = wil_cfg80211_change_bss,
 966 };
 967
 968 static void wil_wiphy_init(struct wiphy *wiphy)
 969 {
 970         /* TODO: set real value */
 971         wiphy->max_scan_ssids = 10;
 972         wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
 973         wiphy->max_num_pmkids = 0 /* TODO: */;
 974         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
 975                                  BIT(NL80211_IFTYPE_AP) |
 976                                  BIT(NL80211_IFTYPE_MONITOR);
 977         /* TODO: enable P2P when integrated with supplicant:
 978          * BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO)
 979          */
 980         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
 981                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
 982         dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
 983                 __func__, wiphy->flags);
 984         wiphy->probe_resp_offload =
 985                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
 986                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
 987                 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
 988
 989         wiphy->bands[IEEE80211_BAND_60GHZ] = &wil_band_60ghz;
 990
 991         /* TODO: figure this out */
 992         wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
 993
 994         wiphy->cipher_suites = wil_cipher_suites;
 995         wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
 996         wiphy->mgmt_stypes = wil_mgmt_stypes;
 997         wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
 998 }
 999
1000 struct wireless_dev *wil_cfg80211_init(struct device *dev)
1001 {
1002         int rc = 0;
1003         struct wireless_dev *wdev;
1004
1005         dev_dbg(dev, "%s()\n", __func__);
1006
1007         wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1008         if (!wdev)
1009                 return ERR_PTR(-ENOMEM);
1010
1011         wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1012                                 sizeof(struct wil6210_priv));
1013         if (!wdev->wiphy) {
1014                 rc = -ENOMEM;
1015                 goto out;
1016         }
1017
1018         set_wiphy_dev(wdev->wiphy, dev);
1019         wil_wiphy_init(wdev->wiphy);
1020
1021         rc = wiphy_register(wdev->wiphy);
1022         if (rc < 0)
1023                 goto out_failed_reg;
1024
1025         return wdev;
1026
1027 out_failed_reg:
1028         wiphy_free(wdev->wiphy);
1029 out:
1030         kfree(wdev);
1031
1032         return ERR_PTR(rc);
1033 }
1034
1035 void wil_wdev_free(struct wil6210_priv *wil)
1036 {
1037         struct wireless_dev *wdev = wil_to_wdev(wil);
1038
1039         dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1040
1041         if (!wdev)
1042                 return;
1043
1044         wiphy_unregister(wdev->wiphy);
1045         wiphy_free(wdev->wiphy);
1046         kfree(wdev);
1047 }