linux/drivers/net/wireless/ath/wil6210/cfg80211.c
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   1/*
   2 * Copyright (c) 2012-2016 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 WIL_MAX_ROC_DURATION_MS 5000
  22
  23#define CHAN60G(_channel, _flags) {                             \
  24        .band                   = NL80211_BAND_60GHZ,           \
  25        .center_freq            = 56160 + (2160 * (_channel)),  \
  26        .hw_value               = (_channel),                   \
  27        .flags                  = (_flags),                     \
  28        .max_antenna_gain       = 0,                            \
  29        .max_power              = 40,                           \
  30}
  31
  32static struct ieee80211_channel wil_60ghz_channels[] = {
  33        CHAN60G(1, 0),
  34        CHAN60G(2, 0),
  35        CHAN60G(3, 0),
  36/* channel 4 not supported yet */
  37};
  38
  39static struct ieee80211_supported_band wil_band_60ghz = {
  40        .channels = wil_60ghz_channels,
  41        .n_channels = ARRAY_SIZE(wil_60ghz_channels),
  42        .ht_cap = {
  43                .ht_supported = true,
  44                .cap = 0, /* TODO */
  45                .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, /* TODO */
  46                .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, /* TODO */
  47                .mcs = {
  48                                /* MCS 1..12 - SC PHY */
  49                        .rx_mask = {0xfe, 0x1f}, /* 1..12 */
  50                        .tx_params = IEEE80211_HT_MCS_TX_DEFINED, /* TODO */
  51                },
  52        },
  53};
  54
  55static const struct ieee80211_txrx_stypes
  56wil_mgmt_stypes[NUM_NL80211_IFTYPES] = {
  57        [NL80211_IFTYPE_STATION] = {
  58                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  59                BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  60                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  61                BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  62        },
  63        [NL80211_IFTYPE_AP] = {
  64                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  65                BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  66                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  67                BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  68        },
  69        [NL80211_IFTYPE_P2P_CLIENT] = {
  70                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  71                BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  72                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  73                BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  74        },
  75        [NL80211_IFTYPE_P2P_GO] = {
  76                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  77                BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  78                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  79                BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  80        },
  81        [NL80211_IFTYPE_P2P_DEVICE] = {
  82                .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  83                BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
  84                .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
  85                BIT(IEEE80211_STYPE_PROBE_REQ >> 4)
  86        },
  87};
  88
  89static const u32 wil_cipher_suites[] = {
  90        WLAN_CIPHER_SUITE_GCMP,
  91};
  92
  93static const char * const key_usage_str[] = {
  94        [WMI_KEY_USE_PAIRWISE]  = "PTK",
  95        [WMI_KEY_USE_RX_GROUP]  = "RX_GTK",
  96        [WMI_KEY_USE_TX_GROUP]  = "TX_GTK",
  97};
  98
  99int wil_iftype_nl2wmi(enum nl80211_iftype type)
 100{
 101        static const struct {
 102                enum nl80211_iftype nl;
 103                enum wmi_network_type wmi;
 104        } __nl2wmi[] = {
 105                {NL80211_IFTYPE_ADHOC,          WMI_NETTYPE_ADHOC},
 106                {NL80211_IFTYPE_STATION,        WMI_NETTYPE_INFRA},
 107                {NL80211_IFTYPE_AP,             WMI_NETTYPE_AP},
 108                {NL80211_IFTYPE_P2P_CLIENT,     WMI_NETTYPE_P2P},
 109                {NL80211_IFTYPE_P2P_GO,         WMI_NETTYPE_P2P},
 110                {NL80211_IFTYPE_MONITOR,        WMI_NETTYPE_ADHOC}, /* FIXME */
 111        };
 112        uint i;
 113
 114        for (i = 0; i < ARRAY_SIZE(__nl2wmi); i++) {
 115                if (__nl2wmi[i].nl == type)
 116                        return __nl2wmi[i].wmi;
 117        }
 118
 119        return -EOPNOTSUPP;
 120}
 121
 122int wil_cid_fill_sinfo(struct wil6210_priv *wil, int cid,
 123                       struct station_info *sinfo)
 124{
 125        struct wmi_notify_req_cmd cmd = {
 126                .cid = cid,
 127                .interval_usec = 0,
 128        };
 129        struct {
 130                struct wmi_cmd_hdr wmi;
 131                struct wmi_notify_req_done_event evt;
 132        } __packed reply;
 133        struct wil_net_stats *stats = &wil->sta[cid].stats;
 134        int rc;
 135
 136        rc = wmi_call(wil, WMI_NOTIFY_REQ_CMDID, &cmd, sizeof(cmd),
 137                      WMI_NOTIFY_REQ_DONE_EVENTID, &reply, sizeof(reply), 20);
 138        if (rc)
 139                return rc;
 140
 141        wil_dbg_wmi(wil, "Link status for CID %d: {\n"
 142                    "  MCS %d TSF 0x%016llx\n"
 143                    "  BF status 0x%08x SNR 0x%08x SQI %d%%\n"
 144                    "  Tx Tpt %d goodput %d Rx goodput %d\n"
 145                    "  Sectors(rx:tx) my %d:%d peer %d:%d\n""}\n",
 146                    cid, le16_to_cpu(reply.evt.bf_mcs),
 147                    le64_to_cpu(reply.evt.tsf), reply.evt.status,
 148                    le32_to_cpu(reply.evt.snr_val),
 149                    reply.evt.sqi,
 150                    le32_to_cpu(reply.evt.tx_tpt),
 151                    le32_to_cpu(reply.evt.tx_goodput),
 152                    le32_to_cpu(reply.evt.rx_goodput),
 153                    le16_to_cpu(reply.evt.my_rx_sector),
 154                    le16_to_cpu(reply.evt.my_tx_sector),
 155                    le16_to_cpu(reply.evt.other_rx_sector),
 156                    le16_to_cpu(reply.evt.other_tx_sector));
 157
 158        sinfo->generation = wil->sinfo_gen;
 159
 160        sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) |
 161                        BIT(NL80211_STA_INFO_TX_BYTES) |
 162                        BIT(NL80211_STA_INFO_RX_PACKETS) |
 163                        BIT(NL80211_STA_INFO_TX_PACKETS) |
 164                        BIT(NL80211_STA_INFO_RX_BITRATE) |
 165                        BIT(NL80211_STA_INFO_TX_BITRATE) |
 166                        BIT(NL80211_STA_INFO_RX_DROP_MISC) |
 167                        BIT(NL80211_STA_INFO_TX_FAILED);
 168
 169        sinfo->txrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
 170        sinfo->txrate.mcs = le16_to_cpu(reply.evt.bf_mcs);
 171        sinfo->rxrate.flags = RATE_INFO_FLAGS_MCS | RATE_INFO_FLAGS_60G;
 172        sinfo->rxrate.mcs = stats->last_mcs_rx;
 173        sinfo->rx_bytes = stats->rx_bytes;
 174        sinfo->rx_packets = stats->rx_packets;
 175        sinfo->rx_dropped_misc = stats->rx_dropped;
 176        sinfo->tx_bytes = stats->tx_bytes;
 177        sinfo->tx_packets = stats->tx_packets;
 178        sinfo->tx_failed = stats->tx_errors;
 179
 180        if (test_bit(wil_status_fwconnected, wil->status)) {
 181                sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL);
 182                sinfo->signal = reply.evt.sqi;
 183        }
 184
 185        return rc;
 186}
 187
 188static int wil_cfg80211_get_station(struct wiphy *wiphy,
 189                                    struct net_device *ndev,
 190                                    const u8 *mac, struct station_info *sinfo)
 191{
 192        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 193        int rc;
 194
 195        int cid = wil_find_cid(wil, mac);
 196
 197        wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
 198        if (cid < 0)
 199                return cid;
 200
 201        rc = wil_cid_fill_sinfo(wil, cid, sinfo);
 202
 203        return rc;
 204}
 205
 206/*
 207 * Find @idx-th active STA for station dump.
 208 */
 209static int wil_find_cid_by_idx(struct wil6210_priv *wil, int idx)
 210{
 211        int i;
 212
 213        for (i = 0; i < ARRAY_SIZE(wil->sta); i++) {
 214                if (wil->sta[i].status == wil_sta_unused)
 215                        continue;
 216                if (idx == 0)
 217                        return i;
 218                idx--;
 219        }
 220
 221        return -ENOENT;
 222}
 223
 224static int wil_cfg80211_dump_station(struct wiphy *wiphy,
 225                                     struct net_device *dev, int idx,
 226                                     u8 *mac, struct station_info *sinfo)
 227{
 228        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 229        int rc;
 230        int cid = wil_find_cid_by_idx(wil, idx);
 231
 232        if (cid < 0)
 233                return -ENOENT;
 234
 235        ether_addr_copy(mac, wil->sta[cid].addr);
 236        wil_dbg_misc(wil, "%s(%pM) CID %d\n", __func__, mac, cid);
 237
 238        rc = wil_cid_fill_sinfo(wil, cid, sinfo);
 239
 240        return rc;
 241}
 242
 243static struct wireless_dev *
 244wil_cfg80211_add_iface(struct wiphy *wiphy, const char *name,
 245                       unsigned char name_assign_type,
 246                       enum nl80211_iftype type,
 247                       u32 *flags, struct vif_params *params)
 248{
 249        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 250        struct net_device *ndev = wil_to_ndev(wil);
 251        struct wireless_dev *p2p_wdev;
 252
 253        wil_dbg_misc(wil, "%s()\n", __func__);
 254
 255        if (type != NL80211_IFTYPE_P2P_DEVICE) {
 256                wil_err(wil, "%s: unsupported iftype %d\n", __func__, type);
 257                return ERR_PTR(-EINVAL);
 258        }
 259
 260        if (wil->p2p_wdev) {
 261                wil_err(wil, "%s: P2P_DEVICE interface already created\n",
 262                        __func__);
 263                return ERR_PTR(-EINVAL);
 264        }
 265
 266        p2p_wdev = kzalloc(sizeof(*p2p_wdev), GFP_KERNEL);
 267        if (!p2p_wdev)
 268                return ERR_PTR(-ENOMEM);
 269
 270        p2p_wdev->iftype = type;
 271        p2p_wdev->wiphy = wiphy;
 272        /* use our primary ethernet address */
 273        ether_addr_copy(p2p_wdev->address, ndev->perm_addr);
 274
 275        wil->p2p_wdev = p2p_wdev;
 276
 277        return p2p_wdev;
 278}
 279
 280static int wil_cfg80211_del_iface(struct wiphy *wiphy,
 281                                  struct wireless_dev *wdev)
 282{
 283        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 284
 285        wil_dbg_misc(wil, "%s()\n", __func__);
 286
 287        if (wdev != wil->p2p_wdev) {
 288                wil_err(wil, "%s: delete of incorrect interface 0x%p\n",
 289                        __func__, wdev);
 290                return -EINVAL;
 291        }
 292
 293        wil_p2p_wdev_free(wil);
 294
 295        return 0;
 296}
 297
 298static int wil_cfg80211_change_iface(struct wiphy *wiphy,
 299                                     struct net_device *ndev,
 300                                     enum nl80211_iftype type, u32 *flags,
 301                                     struct vif_params *params)
 302{
 303        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 304        struct wireless_dev *wdev = wil_to_wdev(wil);
 305        int rc;
 306
 307        wil_dbg_misc(wil, "%s() type=%d\n", __func__, type);
 308
 309        if (netif_running(wil_to_ndev(wil)) && !wil_is_recovery_blocked(wil)) {
 310                wil_dbg_misc(wil, "interface is up. resetting...\n");
 311                mutex_lock(&wil->mutex);
 312                __wil_down(wil);
 313                rc = __wil_up(wil);
 314                mutex_unlock(&wil->mutex);
 315
 316                if (rc)
 317                        return rc;
 318        }
 319
 320        switch (type) {
 321        case NL80211_IFTYPE_STATION:
 322        case NL80211_IFTYPE_AP:
 323        case NL80211_IFTYPE_P2P_CLIENT:
 324        case NL80211_IFTYPE_P2P_GO:
 325                break;
 326        case NL80211_IFTYPE_MONITOR:
 327                if (flags)
 328                        wil->monitor_flags = *flags;
 329                else
 330                        wil->monitor_flags = 0;
 331
 332                break;
 333        default:
 334                return -EOPNOTSUPP;
 335        }
 336
 337        wdev->iftype = type;
 338
 339        return 0;
 340}
 341
 342static int wil_cfg80211_scan(struct wiphy *wiphy,
 343                             struct cfg80211_scan_request *request)
 344{
 345        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 346        struct wireless_dev *wdev = request->wdev;
 347        struct {
 348                struct wmi_start_scan_cmd cmd;
 349                u16 chnl[4];
 350        } __packed cmd;
 351        uint i, n;
 352        int rc;
 353
 354        wil_dbg_misc(wil, "%s(), wdev=0x%p iftype=%d\n",
 355                     __func__, wdev, wdev->iftype);
 356
 357        mutex_lock(&wil->p2p_wdev_mutex);
 358        if (wil->scan_request) {
 359                wil_err(wil, "Already scanning\n");
 360                mutex_unlock(&wil->p2p_wdev_mutex);
 361                return -EAGAIN;
 362        }
 363        mutex_unlock(&wil->p2p_wdev_mutex);
 364
 365        /* check we are client side */
 366        switch (wdev->iftype) {
 367        case NL80211_IFTYPE_STATION:
 368        case NL80211_IFTYPE_P2P_CLIENT:
 369        case NL80211_IFTYPE_P2P_DEVICE:
 370                break;
 371        default:
 372                return -EOPNOTSUPP;
 373        }
 374
 375        /* FW don't support scan after connection attempt */
 376        if (test_bit(wil_status_dontscan, wil->status)) {
 377                wil_err(wil, "Can't scan now\n");
 378                return -EBUSY;
 379        }
 380
 381        /* social scan on P2P_DEVICE is handled as p2p search */
 382        if (wdev->iftype == NL80211_IFTYPE_P2P_DEVICE &&
 383            wil_p2p_is_social_scan(request)) {
 384                if (!wil->p2p.p2p_dev_started) {
 385                        wil_err(wil, "P2P search requested on stopped P2P device\n");
 386                        return -EIO;
 387                }
 388                wil->scan_request = request;
 389                wil->radio_wdev = wdev;
 390                rc = wil_p2p_search(wil, request);
 391                if (rc) {
 392                        wil->radio_wdev = wil_to_wdev(wil);
 393                        wil->scan_request = NULL;
 394                }
 395                return rc;
 396        }
 397
 398        (void)wil_p2p_stop_discovery(wil);
 399
 400        wil_dbg_misc(wil, "Start scan_request 0x%p\n", request);
 401        wil_dbg_misc(wil, "SSID count: %d", request->n_ssids);
 402
 403        for (i = 0; i < request->n_ssids; i++) {
 404                wil_dbg_misc(wil, "SSID[%d]", i);
 405                print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
 406                                     request->ssids[i].ssid,
 407                                     request->ssids[i].ssid_len);
 408        }
 409
 410        if (request->n_ssids)
 411                rc = wmi_set_ssid(wil, request->ssids[0].ssid_len,
 412                                  request->ssids[0].ssid);
 413        else
 414                rc = wmi_set_ssid(wil, 0, NULL);
 415
 416        if (rc) {
 417                wil_err(wil, "set SSID for scan request failed: %d\n", rc);
 418                return rc;
 419        }
 420
 421        wil->scan_request = request;
 422        mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
 423
 424        memset(&cmd, 0, sizeof(cmd));
 425        cmd.cmd.scan_type = WMI_ACTIVE_SCAN;
 426        cmd.cmd.num_channels = 0;
 427        n = min(request->n_channels, 4U);
 428        for (i = 0; i < n; i++) {
 429                int ch = request->channels[i]->hw_value;
 430
 431                if (ch == 0) {
 432                        wil_err(wil,
 433                                "Scan requested for unknown frequency %dMhz\n",
 434                                request->channels[i]->center_freq);
 435                        continue;
 436                }
 437                /* 0-based channel indexes */
 438                cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1;
 439                wil_dbg_misc(wil, "Scan for ch %d  : %d MHz\n", ch,
 440                             request->channels[i]->center_freq);
 441        }
 442
 443        if (request->ie_len)
 444                print_hex_dump_bytes("Scan IE ", DUMP_PREFIX_OFFSET,
 445                                     request->ie, request->ie_len);
 446        else
 447                wil_dbg_misc(wil, "Scan has no IE's\n");
 448
 449        rc = wmi_set_ie(wil, WMI_FRAME_PROBE_REQ, request->ie_len, request->ie);
 450        if (rc)
 451                goto out;
 452
 453        if (wil->discovery_mode && cmd.cmd.scan_type == WMI_ACTIVE_SCAN) {
 454                cmd.cmd.discovery_mode = 1;
 455                wil_dbg_misc(wil, "active scan with discovery_mode=1\n");
 456        }
 457
 458        wil->radio_wdev = wdev;
 459        rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
 460                        cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
 461
 462out:
 463        if (rc) {
 464                del_timer_sync(&wil->scan_timer);
 465                wil->radio_wdev = wil_to_wdev(wil);
 466                wil->scan_request = NULL;
 467        }
 468
 469        return rc;
 470}
 471
 472static void wil_print_crypto(struct wil6210_priv *wil,
 473                             struct cfg80211_crypto_settings *c)
 474{
 475        int i, n;
 476
 477        wil_dbg_misc(wil, "WPA versions: 0x%08x cipher group 0x%08x\n",
 478                     c->wpa_versions, c->cipher_group);
 479        wil_dbg_misc(wil, "Pairwise ciphers [%d] {\n", c->n_ciphers_pairwise);
 480        n = min_t(int, c->n_ciphers_pairwise, ARRAY_SIZE(c->ciphers_pairwise));
 481        for (i = 0; i < n; i++)
 482                wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 483                             c->ciphers_pairwise[i]);
 484        wil_dbg_misc(wil, "}\n");
 485        wil_dbg_misc(wil, "AKM suites [%d] {\n", c->n_akm_suites);
 486        n = min_t(int, c->n_akm_suites, ARRAY_SIZE(c->akm_suites));
 487        for (i = 0; i < n; i++)
 488                wil_dbg_misc(wil, "  [%d] = 0x%08x\n", i,
 489                             c->akm_suites[i]);
 490        wil_dbg_misc(wil, "}\n");
 491        wil_dbg_misc(wil, "Control port : %d, eth_type 0x%04x no_encrypt %d\n",
 492                     c->control_port, be16_to_cpu(c->control_port_ethertype),
 493                     c->control_port_no_encrypt);
 494}
 495
 496static void wil_print_connect_params(struct wil6210_priv *wil,
 497                                     struct cfg80211_connect_params *sme)
 498{
 499        wil_info(wil, "Connecting to:\n");
 500        if (sme->channel) {
 501                wil_info(wil, "  Channel: %d freq %d\n",
 502                         sme->channel->hw_value, sme->channel->center_freq);
 503        }
 504        if (sme->bssid)
 505                wil_info(wil, "  BSSID: %pM\n", sme->bssid);
 506        if (sme->ssid)
 507                print_hex_dump(KERN_INFO, "  SSID: ", DUMP_PREFIX_OFFSET,
 508                               16, 1, sme->ssid, sme->ssid_len, true);
 509        wil_info(wil, "  Privacy: %s\n", sme->privacy ? "secure" : "open");
 510        wil_info(wil, "  PBSS: %d\n", sme->pbss);
 511        wil_print_crypto(wil, &sme->crypto);
 512}
 513
 514static int wil_cfg80211_connect(struct wiphy *wiphy,
 515                                struct net_device *ndev,
 516                                struct cfg80211_connect_params *sme)
 517{
 518        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 519        struct cfg80211_bss *bss;
 520        struct wmi_connect_cmd conn;
 521        const u8 *ssid_eid;
 522        const u8 *rsn_eid;
 523        int ch;
 524        int rc = 0;
 525        enum ieee80211_bss_type bss_type = IEEE80211_BSS_TYPE_ESS;
 526
 527        wil_dbg_misc(wil, "%s()\n", __func__);
 528        wil_print_connect_params(wil, sme);
 529
 530        if (test_bit(wil_status_fwconnecting, wil->status) ||
 531            test_bit(wil_status_fwconnected, wil->status))
 532                return -EALREADY;
 533
 534        if (sme->ie_len > WMI_MAX_IE_LEN) {
 535                wil_err(wil, "IE too large (%td bytes)\n", sme->ie_len);
 536                return -ERANGE;
 537        }
 538
 539        rsn_eid = sme->ie ?
 540                        cfg80211_find_ie(WLAN_EID_RSN, sme->ie, sme->ie_len) :
 541                        NULL;
 542        if (sme->privacy && !rsn_eid)
 543                wil_info(wil, "WSC connection\n");
 544
 545        if (sme->pbss)
 546                bss_type = IEEE80211_BSS_TYPE_PBSS;
 547
 548        bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid,
 549                               sme->ssid, sme->ssid_len,
 550                               bss_type, IEEE80211_PRIVACY_ANY);
 551        if (!bss) {
 552                wil_err(wil, "Unable to find BSS\n");
 553                return -ENOENT;
 554        }
 555
 556        ssid_eid = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
 557        if (!ssid_eid) {
 558                wil_err(wil, "No SSID\n");
 559                rc = -ENOENT;
 560                goto out;
 561        }
 562        wil->privacy = sme->privacy;
 563
 564        if (wil->privacy) {
 565                /* For secure assoc, remove old keys */
 566                rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 567                                        WMI_KEY_USE_PAIRWISE);
 568                if (rc) {
 569                        wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(PTK) failed\n");
 570                        goto out;
 571                }
 572                rc = wmi_del_cipher_key(wil, 0, bss->bssid,
 573                                        WMI_KEY_USE_RX_GROUP);
 574                if (rc) {
 575                        wil_err(wil, "WMI_DELETE_CIPHER_KEY_CMD(GTK) failed\n");
 576                        goto out;
 577                }
 578        }
 579
 580        /* WMI_SET_APPIE_CMD. ie may contain rsn info as well as other info
 581         * elements. Send it also in case it's empty, to erase previously set
 582         * ies in FW.
 583         */
 584        rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_REQ, sme->ie_len, sme->ie);
 585        if (rc)
 586                goto out;
 587
 588        /* WMI_CONNECT_CMD */
 589        memset(&conn, 0, sizeof(conn));
 590        switch (bss->capability & WLAN_CAPABILITY_DMG_TYPE_MASK) {
 591        case WLAN_CAPABILITY_DMG_TYPE_AP:
 592                conn.network_type = WMI_NETTYPE_INFRA;
 593                break;
 594        case WLAN_CAPABILITY_DMG_TYPE_PBSS:
 595                conn.network_type = WMI_NETTYPE_P2P;
 596                break;
 597        default:
 598                wil_err(wil, "Unsupported BSS type, capability= 0x%04x\n",
 599                        bss->capability);
 600                goto out;
 601        }
 602        if (wil->privacy) {
 603                if (rsn_eid) { /* regular secure connection */
 604                        conn.dot11_auth_mode = WMI_AUTH11_SHARED;
 605                        conn.auth_mode = WMI_AUTH_WPA2_PSK;
 606                        conn.pairwise_crypto_type = WMI_CRYPT_AES_GCMP;
 607                        conn.pairwise_crypto_len = 16;
 608                        conn.group_crypto_type = WMI_CRYPT_AES_GCMP;
 609                        conn.group_crypto_len = 16;
 610                } else { /* WSC */
 611                        conn.dot11_auth_mode = WMI_AUTH11_WSC;
 612                        conn.auth_mode = WMI_AUTH_NONE;
 613                }
 614        } else { /* insecure connection */
 615                conn.dot11_auth_mode = WMI_AUTH11_OPEN;
 616                conn.auth_mode = WMI_AUTH_NONE;
 617        }
 618
 619        conn.ssid_len = min_t(u8, ssid_eid[1], 32);
 620        memcpy(conn.ssid, ssid_eid+2, conn.ssid_len);
 621
 622        ch = bss->channel->hw_value;
 623        if (ch == 0) {
 624                wil_err(wil, "BSS at unknown frequency %dMhz\n",
 625                        bss->channel->center_freq);
 626                rc = -EOPNOTSUPP;
 627                goto out;
 628        }
 629        conn.channel = ch - 1;
 630
 631        ether_addr_copy(conn.bssid, bss->bssid);
 632        ether_addr_copy(conn.dst_mac, bss->bssid);
 633
 634        set_bit(wil_status_fwconnecting, wil->status);
 635
 636        rc = wmi_send(wil, WMI_CONNECT_CMDID, &conn, sizeof(conn));
 637        if (rc == 0) {
 638                netif_carrier_on(ndev);
 639                /* Connect can take lots of time */
 640                mod_timer(&wil->connect_timer,
 641                          jiffies + msecs_to_jiffies(2000));
 642        } else {
 643                clear_bit(wil_status_fwconnecting, wil->status);
 644        }
 645
 646 out:
 647        cfg80211_put_bss(wiphy, bss);
 648
 649        return rc;
 650}
 651
 652static int wil_cfg80211_disconnect(struct wiphy *wiphy,
 653                                   struct net_device *ndev,
 654                                   u16 reason_code)
 655{
 656        int rc;
 657        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 658
 659        wil_dbg_misc(wil, "%s(reason=%d)\n", __func__, reason_code);
 660
 661        if (!(test_bit(wil_status_fwconnecting, wil->status) ||
 662              test_bit(wil_status_fwconnected, wil->status))) {
 663                wil_err(wil, "%s: Disconnect was called while disconnected\n",
 664                        __func__);
 665                return 0;
 666        }
 667
 668        rc = wmi_call(wil, WMI_DISCONNECT_CMDID, NULL, 0,
 669                      WMI_DISCONNECT_EVENTID, NULL, 0,
 670                      WIL6210_DISCONNECT_TO_MS);
 671        if (rc)
 672                wil_err(wil, "%s: disconnect error %d\n", __func__, rc);
 673
 674        return rc;
 675}
 676
 677int wil_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 678                         struct cfg80211_mgmt_tx_params *params,
 679                         u64 *cookie)
 680{
 681        const u8 *buf = params->buf;
 682        size_t len = params->len;
 683        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 684        int rc;
 685        bool tx_status = false;
 686        struct ieee80211_mgmt *mgmt_frame = (void *)buf;
 687        struct wmi_sw_tx_req_cmd *cmd;
 688        struct {
 689                struct wmi_cmd_hdr wmi;
 690                struct wmi_sw_tx_complete_event evt;
 691        } __packed evt;
 692
 693        /* Note, currently we do not support the "wait" parameter, user-space
 694         * must call remain_on_channel before mgmt_tx or listen on a channel
 695         * another way (AP/PCP or connected station)
 696         * in addition we need to check if specified "chan" argument is
 697         * different from currently "listened" channel and fail if it is.
 698         */
 699
 700        wil_dbg_misc(wil, "%s()\n", __func__);
 701        print_hex_dump_bytes("mgmt tx frame ", DUMP_PREFIX_OFFSET, buf, len);
 702
 703        cmd = kmalloc(sizeof(*cmd) + len, GFP_KERNEL);
 704        if (!cmd) {
 705                rc = -ENOMEM;
 706                goto out;
 707        }
 708
 709        memcpy(cmd->dst_mac, mgmt_frame->da, WMI_MAC_LEN);
 710        cmd->len = cpu_to_le16(len);
 711        memcpy(cmd->payload, buf, len);
 712
 713        rc = wmi_call(wil, WMI_SW_TX_REQ_CMDID, cmd, sizeof(*cmd) + len,
 714                      WMI_SW_TX_COMPLETE_EVENTID, &evt, sizeof(evt), 2000);
 715        if (rc == 0)
 716                tx_status = !evt.evt.status;
 717
 718        kfree(cmd);
 719 out:
 720        cfg80211_mgmt_tx_status(wdev, cookie ? *cookie : 0, buf, len,
 721                                tx_status, GFP_KERNEL);
 722        return rc;
 723}
 724
 725static int wil_cfg80211_set_channel(struct wiphy *wiphy,
 726                                    struct cfg80211_chan_def *chandef)
 727{
 728        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 729        struct wireless_dev *wdev = wil_to_wdev(wil);
 730
 731        wdev->preset_chandef = *chandef;
 732
 733        return 0;
 734}
 735
 736static enum wmi_key_usage wil_detect_key_usage(struct wil6210_priv *wil,
 737                                               bool pairwise)
 738{
 739        struct wireless_dev *wdev = wil_to_wdev(wil);
 740        enum wmi_key_usage rc;
 741
 742        if (pairwise) {
 743                rc = WMI_KEY_USE_PAIRWISE;
 744        } else {
 745                switch (wdev->iftype) {
 746                case NL80211_IFTYPE_STATION:
 747                case NL80211_IFTYPE_P2P_CLIENT:
 748                        rc = WMI_KEY_USE_RX_GROUP;
 749                        break;
 750                case NL80211_IFTYPE_AP:
 751                case NL80211_IFTYPE_P2P_GO:
 752                        rc = WMI_KEY_USE_TX_GROUP;
 753                        break;
 754                default:
 755                        /* TODO: Rx GTK or Tx GTK? */
 756                        wil_err(wil, "Can't determine GTK type\n");
 757                        rc = WMI_KEY_USE_RX_GROUP;
 758                        break;
 759                }
 760        }
 761        wil_dbg_misc(wil, "%s() -> %s\n", __func__, key_usage_str[rc]);
 762
 763        return rc;
 764}
 765
 766static struct wil_sta_info *
 767wil_find_sta_by_key_usage(struct wil6210_priv *wil,
 768                          enum wmi_key_usage key_usage, const u8 *mac_addr)
 769{
 770        int cid = -EINVAL;
 771
 772        if (key_usage == WMI_KEY_USE_TX_GROUP)
 773                return NULL; /* not needed */
 774
 775        /* supplicant provides Rx group key in STA mode with NULL MAC address */
 776        if (mac_addr)
 777                cid = wil_find_cid(wil, mac_addr);
 778        else if (key_usage == WMI_KEY_USE_RX_GROUP)
 779                cid = wil_find_cid_by_idx(wil, 0);
 780        if (cid < 0) {
 781                wil_err(wil, "No CID for %pM %s\n", mac_addr,
 782                        key_usage_str[key_usage]);
 783                return ERR_PTR(cid);
 784        }
 785
 786        return &wil->sta[cid];
 787}
 788
 789static void wil_set_crypto_rx(u8 key_index, enum wmi_key_usage key_usage,
 790                              struct wil_sta_info *cs,
 791                              struct key_params *params)
 792{
 793        struct wil_tid_crypto_rx_single *cc;
 794        int tid;
 795
 796        if (!cs)
 797                return;
 798
 799        switch (key_usage) {
 800        case WMI_KEY_USE_PAIRWISE:
 801                for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
 802                        cc = &cs->tid_crypto_rx[tid].key_id[key_index];
 803                        if (params->seq)
 804                                memcpy(cc->pn, params->seq,
 805                                       IEEE80211_GCMP_PN_LEN);
 806                        else
 807                                memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
 808                        cc->key_set = true;
 809                }
 810                break;
 811        case WMI_KEY_USE_RX_GROUP:
 812                cc = &cs->group_crypto_rx.key_id[key_index];
 813                if (params->seq)
 814                        memcpy(cc->pn, params->seq, IEEE80211_GCMP_PN_LEN);
 815                else
 816                        memset(cc->pn, 0, IEEE80211_GCMP_PN_LEN);
 817                cc->key_set = true;
 818                break;
 819        default:
 820                break;
 821        }
 822}
 823
 824static void wil_del_rx_key(u8 key_index, enum wmi_key_usage key_usage,
 825                           struct wil_sta_info *cs)
 826{
 827        struct wil_tid_crypto_rx_single *cc;
 828        int tid;
 829
 830        if (!cs)
 831                return;
 832
 833        switch (key_usage) {
 834        case WMI_KEY_USE_PAIRWISE:
 835                for (tid = 0; tid < WIL_STA_TID_NUM; tid++) {
 836                        cc = &cs->tid_crypto_rx[tid].key_id[key_index];
 837                        cc->key_set = false;
 838                }
 839                break;
 840        case WMI_KEY_USE_RX_GROUP:
 841                cc = &cs->group_crypto_rx.key_id[key_index];
 842                cc->key_set = false;
 843                break;
 844        default:
 845                break;
 846        }
 847}
 848
 849static int wil_cfg80211_add_key(struct wiphy *wiphy,
 850                                struct net_device *ndev,
 851                                u8 key_index, bool pairwise,
 852                                const u8 *mac_addr,
 853                                struct key_params *params)
 854{
 855        int rc;
 856        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 857        enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 858        struct wil_sta_info *cs = wil_find_sta_by_key_usage(wil, key_usage,
 859                                                            mac_addr);
 860
 861        if (!params) {
 862                wil_err(wil, "NULL params\n");
 863                return -EINVAL;
 864        }
 865
 866        wil_dbg_misc(wil, "%s(%pM %s[%d] PN %*phN)\n", __func__,
 867                     mac_addr, key_usage_str[key_usage], key_index,
 868                     params->seq_len, params->seq);
 869
 870        if (IS_ERR(cs)) {
 871                wil_err(wil, "Not connected, %s(%pM %s[%d] PN %*phN)\n",
 872                        __func__, mac_addr, key_usage_str[key_usage], key_index,
 873                        params->seq_len, params->seq);
 874                return -EINVAL;
 875        }
 876
 877        wil_del_rx_key(key_index, key_usage, cs);
 878
 879        if (params->seq && params->seq_len != IEEE80211_GCMP_PN_LEN) {
 880                wil_err(wil,
 881                        "Wrong PN len %d, %s(%pM %s[%d] PN %*phN)\n",
 882                        params->seq_len, __func__, mac_addr,
 883                        key_usage_str[key_usage], key_index,
 884                        params->seq_len, params->seq);
 885                return -EINVAL;
 886        }
 887
 888        rc = wmi_add_cipher_key(wil, key_index, mac_addr, params->key_len,
 889                                params->key, key_usage);
 890        if (!rc)
 891                wil_set_crypto_rx(key_index, key_usage, cs, params);
 892
 893        return rc;
 894}
 895
 896static int wil_cfg80211_del_key(struct wiphy *wiphy,
 897                                struct net_device *ndev,
 898                                u8 key_index, bool pairwise,
 899                                const u8 *mac_addr)
 900{
 901        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 902        enum wmi_key_usage key_usage = wil_detect_key_usage(wil, pairwise);
 903        struct wil_sta_info *cs = wil_find_sta_by_key_usage(wil, key_usage,
 904                                                            mac_addr);
 905
 906        wil_dbg_misc(wil, "%s(%pM %s[%d])\n", __func__, mac_addr,
 907                     key_usage_str[key_usage], key_index);
 908
 909        if (IS_ERR(cs))
 910                wil_info(wil, "Not connected, %s(%pM %s[%d])\n", __func__,
 911                         mac_addr, key_usage_str[key_usage], key_index);
 912
 913        if (!IS_ERR_OR_NULL(cs))
 914                wil_del_rx_key(key_index, key_usage, cs);
 915
 916        return wmi_del_cipher_key(wil, key_index, mac_addr, key_usage);
 917}
 918
 919/* Need to be present or wiphy_new() will WARN */
 920static int wil_cfg80211_set_default_key(struct wiphy *wiphy,
 921                                        struct net_device *ndev,
 922                                        u8 key_index, bool unicast,
 923                                        bool multicast)
 924{
 925        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 926
 927        wil_dbg_misc(wil, "%s: entered\n", __func__);
 928        return 0;
 929}
 930
 931static int wil_remain_on_channel(struct wiphy *wiphy,
 932                                 struct wireless_dev *wdev,
 933                                 struct ieee80211_channel *chan,
 934                                 unsigned int duration,
 935                                 u64 *cookie)
 936{
 937        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 938        int rc;
 939
 940        wil_dbg_misc(wil, "%s() center_freq=%d, duration=%d iftype=%d\n",
 941                     __func__, chan->center_freq, duration, wdev->iftype);
 942
 943        rc = wil_p2p_listen(wil, duration, chan, cookie);
 944        if (rc)
 945                return rc;
 946
 947        wil->radio_wdev = wdev;
 948
 949        cfg80211_ready_on_channel(wdev, *cookie, chan, duration,
 950                                  GFP_KERNEL);
 951
 952        return 0;
 953}
 954
 955static int wil_cancel_remain_on_channel(struct wiphy *wiphy,
 956                                        struct wireless_dev *wdev,
 957                                        u64 cookie)
 958{
 959        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
 960
 961        wil_dbg_misc(wil, "%s()\n", __func__);
 962
 963        return wil_p2p_cancel_listen(wil, cookie);
 964}
 965
 966/**
 967 * find a specific IE in a list of IEs
 968 * return a pointer to the beginning of IE in the list
 969 * or NULL if not found
 970 */
 971static const u8 *_wil_cfg80211_find_ie(const u8 *ies, u16 ies_len, const u8 *ie,
 972                                       u16 ie_len)
 973{
 974        struct ieee80211_vendor_ie *vie;
 975        u32 oui;
 976
 977        /* IE tag at offset 0, length at offset 1 */
 978        if (ie_len < 2 || 2 + ie[1] > ie_len)
 979                return NULL;
 980
 981        if (ie[0] != WLAN_EID_VENDOR_SPECIFIC)
 982                return cfg80211_find_ie(ie[0], ies, ies_len);
 983
 984        /* make sure there is room for 3 bytes OUI + 1 byte OUI type */
 985        if (ie[1] < 4)
 986                return NULL;
 987        vie = (struct ieee80211_vendor_ie *)ie;
 988        oui = vie->oui[0] << 16 | vie->oui[1] << 8 | vie->oui[2];
 989        return cfg80211_find_vendor_ie(oui, vie->oui_type, ies,
 990                                       ies_len);
 991}
 992
 993/**
 994 * merge the IEs in two lists into a single list.
 995 * do not include IEs from the second list which exist in the first list.
 996 * add only vendor specific IEs from second list to keep
 997 * the merged list sorted (since vendor-specific IE has the
 998 * highest tag number)
 999 * caller must free the allocated memory for merged IEs
1000 */
1001static int _wil_cfg80211_merge_extra_ies(const u8 *ies1, u16 ies1_len,
1002                                         const u8 *ies2, u16 ies2_len,
1003                                         u8 **merged_ies, u16 *merged_len)
1004{
1005        u8 *buf, *dpos;
1006        const u8 *spos;
1007
1008        if (ies1_len == 0 && ies2_len == 0) {
1009                *merged_ies = NULL;
1010                *merged_len = 0;
1011                return 0;
1012        }
1013
1014        buf = kmalloc(ies1_len + ies2_len, GFP_KERNEL);
1015        if (!buf)
1016                return -ENOMEM;
1017        memcpy(buf, ies1, ies1_len);
1018        dpos = buf + ies1_len;
1019        spos = ies2;
1020        while (spos + 1 < ies2 + ies2_len) {
1021                /* IE tag at offset 0, length at offset 1 */
1022                u16 ielen = 2 + spos[1];
1023
1024                if (spos + ielen > ies2 + ies2_len)
1025                        break;
1026                if (spos[0] == WLAN_EID_VENDOR_SPECIFIC &&
1027                    !_wil_cfg80211_find_ie(ies1, ies1_len, spos, ielen)) {
1028                        memcpy(dpos, spos, ielen);
1029                        dpos += ielen;
1030                }
1031                spos += ielen;
1032        }
1033
1034        *merged_ies = buf;
1035        *merged_len = dpos - buf;
1036        return 0;
1037}
1038
1039static void wil_print_bcon_data(struct cfg80211_beacon_data *b)
1040{
1041        print_hex_dump_bytes("head     ", DUMP_PREFIX_OFFSET,
1042                             b->head, b->head_len);
1043        print_hex_dump_bytes("tail     ", DUMP_PREFIX_OFFSET,
1044                             b->tail, b->tail_len);
1045        print_hex_dump_bytes("BCON IE  ", DUMP_PREFIX_OFFSET,
1046                             b->beacon_ies, b->beacon_ies_len);
1047        print_hex_dump_bytes("PROBE    ", DUMP_PREFIX_OFFSET,
1048                             b->probe_resp, b->probe_resp_len);
1049        print_hex_dump_bytes("PROBE IE ", DUMP_PREFIX_OFFSET,
1050                             b->proberesp_ies, b->proberesp_ies_len);
1051        print_hex_dump_bytes("ASSOC IE ", DUMP_PREFIX_OFFSET,
1052                             b->assocresp_ies, b->assocresp_ies_len);
1053}
1054
1055/* internal functions for device reset and starting AP */
1056static int _wil_cfg80211_set_ies(struct wiphy *wiphy,
1057                                 struct cfg80211_beacon_data *bcon)
1058{
1059        int rc;
1060        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1061        u16 len = 0, proberesp_len = 0;
1062        u8 *ies = NULL, *proberesp = NULL;
1063
1064        if (bcon->probe_resp) {
1065                struct ieee80211_mgmt *f =
1066                        (struct ieee80211_mgmt *)bcon->probe_resp;
1067                size_t hlen = offsetof(struct ieee80211_mgmt,
1068                                       u.probe_resp.variable);
1069                proberesp = f->u.probe_resp.variable;
1070                proberesp_len = bcon->probe_resp_len - hlen;
1071        }
1072        rc = _wil_cfg80211_merge_extra_ies(proberesp,
1073                                           proberesp_len,
1074                                           bcon->proberesp_ies,
1075                                           bcon->proberesp_ies_len,
1076                                           &ies, &len);
1077
1078        if (rc)
1079                goto out;
1080
1081        rc = wmi_set_ie(wil, WMI_FRAME_PROBE_RESP, len, ies);
1082        if (rc)
1083                goto out;
1084
1085        if (bcon->assocresp_ies)
1086                rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP,
1087                                bcon->assocresp_ies_len, bcon->assocresp_ies);
1088        else
1089                rc = wmi_set_ie(wil, WMI_FRAME_ASSOC_RESP, len, ies);
1090#if 0 /* to use beacon IE's, remove this #if 0 */
1091        if (rc)
1092                goto out;
1093
1094        rc = wmi_set_ie(wil, WMI_FRAME_BEACON, bcon->tail_len, bcon->tail);
1095#endif
1096out:
1097        kfree(ies);
1098        return rc;
1099}
1100
1101static int _wil_cfg80211_start_ap(struct wiphy *wiphy,
1102                                  struct net_device *ndev,
1103                                  const u8 *ssid, size_t ssid_len, u32 privacy,
1104                                  int bi, u8 chan,
1105                                  struct cfg80211_beacon_data *bcon,
1106                                  u8 hidden_ssid, u32 pbss)
1107{
1108        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1109        int rc;
1110        struct wireless_dev *wdev = ndev->ieee80211_ptr;
1111        u8 wmi_nettype = wil_iftype_nl2wmi(wdev->iftype);
1112        u8 is_go = (wdev->iftype == NL80211_IFTYPE_P2P_GO);
1113
1114        if (pbss)
1115                wmi_nettype = WMI_NETTYPE_P2P;
1116
1117        wil_dbg_misc(wil, "%s: is_go=%d\n", __func__, is_go);
1118        if (is_go && !pbss) {
1119                wil_err(wil, "%s: P2P GO must be in PBSS\n", __func__);
1120                return -ENOTSUPP;
1121        }
1122
1123        wil_set_recovery_state(wil, fw_recovery_idle);
1124
1125        mutex_lock(&wil->mutex);
1126
1127        __wil_down(wil);
1128        rc = __wil_up(wil);
1129        if (rc)
1130                goto out;
1131
1132        rc = wmi_set_ssid(wil, ssid_len, ssid);
1133        if (rc)
1134                goto out;
1135
1136        rc = _wil_cfg80211_set_ies(wiphy, bcon);
1137        if (rc)
1138                goto out;
1139
1140        wil->privacy = privacy;
1141        wil->channel = chan;
1142        wil->hidden_ssid = hidden_ssid;
1143        wil->pbss = pbss;
1144
1145        netif_carrier_on(ndev);
1146
1147        rc = wmi_pcp_start(wil, bi, wmi_nettype, chan, hidden_ssid, is_go);
1148        if (rc)
1149                goto err_pcp_start;
1150
1151        rc = wil_bcast_init(wil);
1152        if (rc)
1153                goto err_bcast;
1154
1155        goto out; /* success */
1156
1157err_bcast:
1158        wmi_pcp_stop(wil);
1159err_pcp_start:
1160        netif_carrier_off(ndev);
1161out:
1162        mutex_unlock(&wil->mutex);
1163        return rc;
1164}
1165
1166static int wil_cfg80211_change_beacon(struct wiphy *wiphy,
1167                                      struct net_device *ndev,
1168                                      struct cfg80211_beacon_data *bcon)
1169{
1170        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1171        int rc;
1172        u32 privacy = 0;
1173
1174        wil_dbg_misc(wil, "%s()\n", __func__);
1175        wil_print_bcon_data(bcon);
1176
1177        if (bcon->tail &&
1178            cfg80211_find_ie(WLAN_EID_RSN, bcon->tail,
1179                             bcon->tail_len))
1180                privacy = 1;
1181
1182        /* in case privacy has changed, need to restart the AP */
1183        if (wil->privacy != privacy) {
1184                struct wireless_dev *wdev = ndev->ieee80211_ptr;
1185
1186                wil_dbg_misc(wil, "privacy changed %d=>%d. Restarting AP\n",
1187                             wil->privacy, privacy);
1188
1189                rc = _wil_cfg80211_start_ap(wiphy, ndev, wdev->ssid,
1190                                            wdev->ssid_len, privacy,
1191                                            wdev->beacon_interval,
1192                                            wil->channel, bcon,
1193                                            wil->hidden_ssid,
1194                                            wil->pbss);
1195        } else {
1196                rc = _wil_cfg80211_set_ies(wiphy, bcon);
1197        }
1198
1199        return rc;
1200}
1201
1202static int wil_cfg80211_start_ap(struct wiphy *wiphy,
1203                                 struct net_device *ndev,
1204                                 struct cfg80211_ap_settings *info)
1205{
1206        int rc;
1207        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1208        struct ieee80211_channel *channel = info->chandef.chan;
1209        struct cfg80211_beacon_data *bcon = &info->beacon;
1210        struct cfg80211_crypto_settings *crypto = &info->crypto;
1211        u8 hidden_ssid;
1212
1213        wil_dbg_misc(wil, "%s()\n", __func__);
1214
1215        if (!channel) {
1216                wil_err(wil, "AP: No channel???\n");
1217                return -EINVAL;
1218        }
1219
1220        switch (info->hidden_ssid) {
1221        case NL80211_HIDDEN_SSID_NOT_IN_USE:
1222                hidden_ssid = WMI_HIDDEN_SSID_DISABLED;
1223                break;
1224
1225        case NL80211_HIDDEN_SSID_ZERO_LEN:
1226                hidden_ssid = WMI_HIDDEN_SSID_SEND_EMPTY;
1227                break;
1228
1229        case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1230                hidden_ssid = WMI_HIDDEN_SSID_CLEAR;
1231                break;
1232
1233        default:
1234                wil_err(wil, "AP: Invalid hidden SSID %d\n", info->hidden_ssid);
1235                return -EOPNOTSUPP;
1236        }
1237        wil_dbg_misc(wil, "AP on Channel %d %d MHz, %s\n", channel->hw_value,
1238                     channel->center_freq, info->privacy ? "secure" : "open");
1239        wil_dbg_misc(wil, "Privacy: %d auth_type %d\n",
1240                     info->privacy, info->auth_type);
1241        wil_dbg_misc(wil, "Hidden SSID mode: %d\n",
1242                     info->hidden_ssid);
1243        wil_dbg_misc(wil, "BI %d DTIM %d\n", info->beacon_interval,
1244                     info->dtim_period);
1245        wil_dbg_misc(wil, "PBSS %d\n", info->pbss);
1246        print_hex_dump_bytes("SSID ", DUMP_PREFIX_OFFSET,
1247                             info->ssid, info->ssid_len);
1248        wil_print_bcon_data(bcon);
1249        wil_print_crypto(wil, crypto);
1250
1251        rc = _wil_cfg80211_start_ap(wiphy, ndev,
1252                                    info->ssid, info->ssid_len, info->privacy,
1253                                    info->beacon_interval, channel->hw_value,
1254                                    bcon, hidden_ssid, info->pbss);
1255
1256        return rc;
1257}
1258
1259static int wil_cfg80211_stop_ap(struct wiphy *wiphy,
1260                                struct net_device *ndev)
1261{
1262        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1263
1264        wil_dbg_misc(wil, "%s()\n", __func__);
1265
1266        netif_carrier_off(ndev);
1267        wil_set_recovery_state(wil, fw_recovery_idle);
1268
1269        mutex_lock(&wil->mutex);
1270
1271        wmi_pcp_stop(wil);
1272
1273        __wil_down(wil);
1274
1275        mutex_unlock(&wil->mutex);
1276
1277        return 0;
1278}
1279
1280static int wil_cfg80211_del_station(struct wiphy *wiphy,
1281                                    struct net_device *dev,
1282                                    struct station_del_parameters *params)
1283{
1284        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1285
1286        wil_dbg_misc(wil, "%s(%pM, reason=%d)\n", __func__, params->mac,
1287                     params->reason_code);
1288
1289        mutex_lock(&wil->mutex);
1290        wil6210_disconnect(wil, params->mac, params->reason_code, false);
1291        mutex_unlock(&wil->mutex);
1292
1293        return 0;
1294}
1295
1296/* probe_client handling */
1297static void wil_probe_client_handle(struct wil6210_priv *wil,
1298                                    struct wil_probe_client_req *req)
1299{
1300        struct net_device *ndev = wil_to_ndev(wil);
1301        struct wil_sta_info *sta = &wil->sta[req->cid];
1302        /* assume STA is alive if it is still connected,
1303         * else FW will disconnect it
1304         */
1305        bool alive = (sta->status == wil_sta_connected);
1306
1307        cfg80211_probe_status(ndev, sta->addr, req->cookie, alive, GFP_KERNEL);
1308}
1309
1310static struct list_head *next_probe_client(struct wil6210_priv *wil)
1311{
1312        struct list_head *ret = NULL;
1313
1314        mutex_lock(&wil->probe_client_mutex);
1315
1316        if (!list_empty(&wil->probe_client_pending)) {
1317                ret = wil->probe_client_pending.next;
1318                list_del(ret);
1319        }
1320
1321        mutex_unlock(&wil->probe_client_mutex);
1322
1323        return ret;
1324}
1325
1326void wil_probe_client_worker(struct work_struct *work)
1327{
1328        struct wil6210_priv *wil = container_of(work, struct wil6210_priv,
1329                                                probe_client_worker);
1330        struct wil_probe_client_req *req;
1331        struct list_head *lh;
1332
1333        while ((lh = next_probe_client(wil)) != NULL) {
1334                req = list_entry(lh, struct wil_probe_client_req, list);
1335
1336                wil_probe_client_handle(wil, req);
1337                kfree(req);
1338        }
1339}
1340
1341void wil_probe_client_flush(struct wil6210_priv *wil)
1342{
1343        struct wil_probe_client_req *req, *t;
1344
1345        wil_dbg_misc(wil, "%s()\n", __func__);
1346
1347        mutex_lock(&wil->probe_client_mutex);
1348
1349        list_for_each_entry_safe(req, t, &wil->probe_client_pending, list) {
1350                list_del(&req->list);
1351                kfree(req);
1352        }
1353
1354        mutex_unlock(&wil->probe_client_mutex);
1355}
1356
1357static int wil_cfg80211_probe_client(struct wiphy *wiphy,
1358                                     struct net_device *dev,
1359                                     const u8 *peer, u64 *cookie)
1360{
1361        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1362        struct wil_probe_client_req *req;
1363        int cid = wil_find_cid(wil, peer);
1364
1365        wil_dbg_misc(wil, "%s(%pM => CID %d)\n", __func__, peer, cid);
1366
1367        if (cid < 0)
1368                return -ENOLINK;
1369
1370        req = kzalloc(sizeof(*req), GFP_KERNEL);
1371        if (!req)
1372                return -ENOMEM;
1373
1374        req->cid = cid;
1375        req->cookie = cid;
1376
1377        mutex_lock(&wil->probe_client_mutex);
1378        list_add_tail(&req->list, &wil->probe_client_pending);
1379        mutex_unlock(&wil->probe_client_mutex);
1380
1381        *cookie = req->cookie;
1382        queue_work(wil->wq_service, &wil->probe_client_worker);
1383        return 0;
1384}
1385
1386static int wil_cfg80211_change_bss(struct wiphy *wiphy,
1387                                   struct net_device *dev,
1388                                   struct bss_parameters *params)
1389{
1390        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1391
1392        if (params->ap_isolate >= 0) {
1393                wil_dbg_misc(wil, "%s(ap_isolate %d => %d)\n", __func__,
1394                             wil->ap_isolate, params->ap_isolate);
1395                wil->ap_isolate = params->ap_isolate;
1396        }
1397
1398        return 0;
1399}
1400
1401static int wil_cfg80211_start_p2p_device(struct wiphy *wiphy,
1402                                         struct wireless_dev *wdev)
1403{
1404        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1405
1406        wil_dbg_misc(wil, "%s: entered\n", __func__);
1407        wil->p2p.p2p_dev_started = 1;
1408        return 0;
1409}
1410
1411static void wil_cfg80211_stop_p2p_device(struct wiphy *wiphy,
1412                                         struct wireless_dev *wdev)
1413{
1414        struct wil6210_priv *wil = wiphy_to_wil(wiphy);
1415        struct wil_p2p_info *p2p = &wil->p2p;
1416
1417        if (!p2p->p2p_dev_started)
1418                return;
1419
1420        wil_dbg_misc(wil, "%s: entered\n", __func__);
1421        mutex_lock(&wil->mutex);
1422        wil_p2p_stop_radio_operations(wil);
1423        p2p->p2p_dev_started = 0;
1424        mutex_unlock(&wil->mutex);
1425}
1426
1427static struct cfg80211_ops wil_cfg80211_ops = {
1428        .add_virtual_intf = wil_cfg80211_add_iface,
1429        .del_virtual_intf = wil_cfg80211_del_iface,
1430        .scan = wil_cfg80211_scan,
1431        .connect = wil_cfg80211_connect,
1432        .disconnect = wil_cfg80211_disconnect,
1433        .change_virtual_intf = wil_cfg80211_change_iface,
1434        .get_station = wil_cfg80211_get_station,
1435        .dump_station = wil_cfg80211_dump_station,
1436        .remain_on_channel = wil_remain_on_channel,
1437        .cancel_remain_on_channel = wil_cancel_remain_on_channel,
1438        .mgmt_tx = wil_cfg80211_mgmt_tx,
1439        .set_monitor_channel = wil_cfg80211_set_channel,
1440        .add_key = wil_cfg80211_add_key,
1441        .del_key = wil_cfg80211_del_key,
1442        .set_default_key = wil_cfg80211_set_default_key,
1443        /* AP mode */
1444        .change_beacon = wil_cfg80211_change_beacon,
1445        .start_ap = wil_cfg80211_start_ap,
1446        .stop_ap = wil_cfg80211_stop_ap,
1447        .del_station = wil_cfg80211_del_station,
1448        .probe_client = wil_cfg80211_probe_client,
1449        .change_bss = wil_cfg80211_change_bss,
1450        /* P2P device */
1451        .start_p2p_device = wil_cfg80211_start_p2p_device,
1452        .stop_p2p_device = wil_cfg80211_stop_p2p_device,
1453};
1454
1455static void wil_wiphy_init(struct wiphy *wiphy)
1456{
1457        wiphy->max_scan_ssids = 1;
1458        wiphy->max_scan_ie_len = WMI_MAX_IE_LEN;
1459        wiphy->max_remain_on_channel_duration = WIL_MAX_ROC_DURATION_MS;
1460        wiphy->max_num_pmkids = 0 /* TODO: */;
1461        wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1462                                 BIT(NL80211_IFTYPE_AP) |
1463                                 BIT(NL80211_IFTYPE_P2P_CLIENT) |
1464                                 BIT(NL80211_IFTYPE_P2P_GO) |
1465                                 BIT(NL80211_IFTYPE_P2P_DEVICE) |
1466                                 BIT(NL80211_IFTYPE_MONITOR);
1467        wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
1468                        WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
1469                        WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1470        dev_dbg(wiphy_dev(wiphy), "%s : flags = 0x%08x\n",
1471                __func__, wiphy->flags);
1472        wiphy->probe_resp_offload =
1473                NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
1474                NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
1475                NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
1476
1477        wiphy->bands[NL80211_BAND_60GHZ] = &wil_band_60ghz;
1478
1479        /* TODO: figure this out */
1480        wiphy->signal_type = CFG80211_SIGNAL_TYPE_UNSPEC;
1481
1482        wiphy->cipher_suites = wil_cipher_suites;
1483        wiphy->n_cipher_suites = ARRAY_SIZE(wil_cipher_suites);
1484        wiphy->mgmt_stypes = wil_mgmt_stypes;
1485        wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
1486}
1487
1488struct wireless_dev *wil_cfg80211_init(struct device *dev)
1489{
1490        int rc = 0;
1491        struct wireless_dev *wdev;
1492
1493        dev_dbg(dev, "%s()\n", __func__);
1494
1495        wdev = kzalloc(sizeof(*wdev), GFP_KERNEL);
1496        if (!wdev)
1497                return ERR_PTR(-ENOMEM);
1498
1499        wdev->wiphy = wiphy_new(&wil_cfg80211_ops,
1500                                sizeof(struct wil6210_priv));
1501        if (!wdev->wiphy) {
1502                rc = -ENOMEM;
1503                goto out;
1504        }
1505
1506        set_wiphy_dev(wdev->wiphy, dev);
1507        wil_wiphy_init(wdev->wiphy);
1508
1509        return wdev;
1510
1511out:
1512        kfree(wdev);
1513
1514        return ERR_PTR(rc);
1515}
1516
1517void wil_wdev_free(struct wil6210_priv *wil)
1518{
1519        struct wireless_dev *wdev = wil_to_wdev(wil);
1520
1521        dev_dbg(wil_to_dev(wil), "%s()\n", __func__);
1522
1523        if (!wdev)
1524                return;
1525
1526        wiphy_free(wdev->wiphy);
1527        kfree(wdev);
1528}
1529
1530void wil_p2p_wdev_free(struct wil6210_priv *wil)
1531{
1532        struct wireless_dev *p2p_wdev;
1533
1534        mutex_lock(&wil->p2p_wdev_mutex);
1535        p2p_wdev = wil->p2p_wdev;
1536        wil->p2p_wdev = NULL;
1537        wil->radio_wdev = wil_to_wdev(wil);
1538        mutex_unlock(&wil->p2p_wdev_mutex);
1539        if (p2p_wdev) {
1540                cfg80211_unregister_wdev(p2p_wdev);
1541                kfree(p2p_wdev);
1542        }
1543}
1544